Trane S9V2C100D4VSAD Installation, Operation And Maintenance Manual

Installation, Operation, and Maintenance
Upflow/Horizontal and Dedicated Downflow
Gas-Fired, Direct/Non-Direct Vent, 2-Stage
Condensing Variable Speed Furnaces with Variable Speed
Draft Inducer
Upflow, Convertible to
Horizontal Right or
Horizontal Left
S9V2B040U3VSAE
S9V2B060U3VSAC/D
S9V2B080U4VSAC/D
S9V2C100U4VSAC/D
S9V2D120U5VSAC/D
Downflow Only
S9V2B080D4VSAC/D
S9V2C100D4VSAC/D
N o t e : Graphics in this document are for representation
only. Actual model may differ in appearance.
!
CAUTION
COIL REQUIREMENT!
Failure to follow this Caution could result in property damage or personal injury. 4GXC* and
4MXC* coils installed on upflow furnaces in vertical, horizontal left, or horizontal right
orientations without a factory installed metal drain pan shield must use a MAY*FERCOLKITAA
kit. Coils installed on upflow furnaces must have drain pans that are suitable for 400° F
(205°C) or have a metal drain pan shield. Downflow furnaces do not require a metal drain pan
shield or the use of the MAY*FERCOLKITAA kit.
S9V2-VS-SVX001-1B-EN
SAFETY WARNING
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning
equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person
could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that
are attached to the equipment.
December 2022
S9V2-VS-SVX001-1B-EN
SAFETY SECTION — FURNACES
I m p o r t a n t : — This document pack contains a wiring
diagram and service information. This is
customer property and is to remain with
this unit. Please return to service
information pack upon completion of work.
WARNING
FIRE OR EXPLOSION HAZARD!
Failure to follow safety warnings exactly
could result in a fire or explosion causing
property damage, personal injury or loss
of life.
— Do not store or use gasoline or other
flammable vapors and liquids in the vicinity of
this or any other appliance. — WHAT TO DO IF
YOU SMELL GAS
•
Do not try to light any appliance.
•
Do not touch any electrical switch;do not use
any phone in your building.
•
Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier's
instructions.
•
If you cannot reach your gas supplier, call
the fire department.
— Installation and service must be performed by
a qualified installer, service agency, or the gas
supplier.
WARNING
WARNING
ELECTRICAL SHOCK, FIRE, OR
EXPLOSION HAZARD!
Failure to follow this Warning could result in
dangerous operation, property damage, severe
personal injury, or death.
Improper servicing could result in dangerous
operation, property damage, severe personal
injury, or death.
•
Before servicing, disconnect all electrical
power to furnace.
•
When servicing controls, label all wires prior
to disconnection. Reconnect wires correctly.
•
Verify proper operation after servicing.
WARNING
CARBON MONOXIDE POISONING
HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
To ensure furnace is vented properly, do not
replace factory supplied venting components with
field fabricated parts. Fabricating parts can result
in damaged vents and components allowing
carbon monoxide to escape the venting system.
WARNING
EXPLOSION HAZARD!
CARBON MONOXIDE HAZARD!
Failure to follow this Warning could result in
property damage, personal injury or death.
Install a gas detecting warning device in case of a
gas leak. NOTE: The manufacturer of your furnace
does not test any detectors and makes no
representations regarding any brand or type of
detector.
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
Do not attempt to change the venting system.
Follow the installation and operation instructions
for the venting system.
WARNING
FIRE OR EXPLOSION HAZARD!
Failure to follow the safety warnings exactly could
result in serious injury, death, or property
damage.
Never test for gas leaks with an open flame. Use a
commercially available soap solution made
specifically for the detection of leaks to check all
connections. A fire or explosion may result
causing property damage, personal injury, or loss
of life.
©2022
WARNING
FIRE HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
Do not install the furnace directly on carpeting, tile
or other combustible material other than wood
flooring. For vertical downflow applications,
subbase (BAYBASE205) must be used between the
furnace and combustible flooring.When the
downflow furnace is installed vertically with a
cased coil, a subbase is not required.
S9V2-VS-SVX001-1B-EN
SAFETY SECTION — FURNACES
WARNING
WARNING!
This product can expose you to chemicals
including lead, which are known to the State of
California to cause cancer and birth defects or
other reproductive harm.
For more information go to www.P65Warnings.ca.
gov.
WARNING
EXPLOSION HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
Propane gas is heavier than air and may collect in
any low areas or confined spaces. In addition,
odorant fade may make the gas undetectable
except with a warning device. If the gas furnace is
installed in a basement, an excavated areas or a
confined space, it is strongly recommended to
contact a gas supplier to install a gas detecting
warning device in case of leak. The manufacturer
of your furnace does not test any detectors and
makes no representations regarding any brand or
type of detector.
WARNING
WARNING
CARBON MONOXIDE POISONING
HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
Follow the service and/or periodic maintenance
instructions for the Furnace and venting system.
WARNING
CARBON MONOXIDE POISONING
HAZARD!
Failure to follow this Warning could result in
serious personal injury or death.
Make sure that the blower door is in place and not
ajar. Dangerous fumes could escape an
improperly secured door.
WARNING
ELECTRICAL SHOCK HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
Disconnect power to the unit before removing the
blower door. Allow a minimum of 10 seconds for
IFC power supply to discharge to 0 volts.
ELECTRICAL SHOCK HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
Do not bypass the door switch or panel loop by
any permanent means.
WARNING
ELECTRICAL SHOCK HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
Do not touch any components other than the Menu
and Option buttons on the IFC when setting up the
system or during fault code recovery.
WARNING
FIRE OR EXPLOSION HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
Do NOT attempt to manually light the furnace.
S9V2-VS-SVX001-1B-EN
WARNING
SAFETY HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
These furnaces are not approved or intended for
installation in trailers or recreational vehicles.
Installation in manufactured (mobile) housing is
only approved with BAYMFGH Kit.
WARNING
EXPLOSION HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
In the event that electrical, fuel, or mechanical
failures occur, shut gas supply off at the manual
gas valve located on the supply gas piping coming
into the furnace before turning off the electrical
power to the furnace. Contact the service agency
designated by your dealer.
3
SAFETY SECTION — FURNACES
WARNING
WARNING
EXPLOSION HAZARD!
CARBON MONOXIDE HAZARD!
Failure to follow this Warning could result in
property damage, serious personal injury, or
death.
Do not store combustible materials, gasoline, or
other flammable vapors or liquids near the unit.
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
Furnace venting into an unlined masonry chimney
or concrete chimney is prohibited.
WARNING
WARNING
SAFETY HAZARD!
CARBON MONOXIDE HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
Do not use semi-rigid metallic gas connectors
(flexible gas lines) within the furnace cabinet.
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
The chimney liner must be thoroughly inspected
to insure no cracks or other potential areas for flue
gas leaks are present in the liner. Liner leaks will
result in early deterioration of the chimney.
WARNING
INSTALLATION WARNING – HIGH
VOLTAGE MOVING PARTS!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
Bodily injury can result from high voltage
electrical components, fast moving fans, and
combustible gas. For protection from these
inherent hazards during installation and servicing,
the main gas valve must be turned off and the
electrical supply must be disconnected. If
operating checks must be performed with the unit
operating, it is the technician’s responsibility to
recognize these hazards and proceed safely.
WARNING
SAFETY HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
Do not install the filter in the return duct directly
above the furnace in horizontal applications.
Install the filter remotely.
WARNING
SAFETY HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
Turn the power to the furnace off before servicing
filters to avoid contact with moving parts.
4
WARNING
SHOCK HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or
death.
If a disconnect switch is present, it must always be
locked in the open position before servicing the
unit.
WARNING
ELECTRICAL SHOCK HAZARD!
Failure to follow this Warning could result in an
electrical shock, fire, injury or death.
Ensure cabinet has an uninterrupted or unbroken
ground in accordance with National Electrical
Code, ANSI/ NFPA 70 – ‘latest edition’ and
Canadian Electrical Code, CSA C22.1 or local codes
to minimize personal injury if an electrical fault
should occur.
WARNING
OVERHEATING AND EXPLOSION
HAZARD!
Failure to follow this Warning could result in
property damage, personal injury or death.
Should overheating occur, or the gas supply fail to
shut off, shut off the gas valve to the unit before
shutting off the electrical supply.
S9V2-VS-SVX001-1B-EN
SAFETY SECTION — FURNACES
CAUTION
CAUTION
IMPROPER VOLTAGE CONNECTION!
FREEZE CAUTION!
Failure to follow this Caution could result in
property damage.
Do NOT connect the furnace line voltage to a GFCI
protected circuit.
Failure to follow this Caution could result in
property damage or personal injury.
When the vent pipe is exposed to temperatures
below freezing, i.e., when it passes through
unheated spaces, etc., the pipe must be insulated
with 1/2 inch (12.7 mm) thick Armaflex-type
insulation or equal. If the space is heated
sufficiently to prevent freezing, then the insulation
would not be required. If domestic water pipes are
not protected from freezing then the space meets
the condition of a heated space.
CAUTION
CORROSION WARNING!
Failure to follow this Caution could result in
property damage or personal injury.
Do not install the furnace in a corrosive or
contaminated atmosphere.
CAUTION
SAFETY HAZARD!
Failure to follow this Caution could result in
property damage or personal injury.
The vent for this appliance shall not terminate; (1)
Over public walkways; or (2) Near soffit vents or
crawl space vents or other areas where
condensate or vapor could create a nuisance or
hazard or cause property damage; or (3) Where
condensate vapor could cause damage or could be
detrimental to the operation of regulators, relief
valves, or other equipment.
CAUTION
SHARP EDGE HAZARD!
Failure to follow this Caution could result in
property damage or personal injury.
Be careful of sharp edges on equipment or any
cuts made on sheet metal while installing or
servicing.
CAUTION
BACKUP WRENCH REQUIRED!
Failure to follow this Caution could result in
property damage or personal injury.
Use a backup wrench on the gas valve when
installing gas piping to prevent damage to the gas
valve and manifold assembly.
CAUTION
FREEZE CAUTION!
Failure to follow this Caution could result in
property damage or personal injury.
If complete furnace shutdown is done during the
cold weather months, provisions must be taken to
prevent freeze-up of all water pipes and water
receptacles.
S9V2-VS-SVX001-1B-EN
CAUTION
FREEZE CAUTION!
Failure to follow this Caution could result in
property damage or personal injury.
Whenever your house is to be vacant, arrange to
have someone inspect your house for proper
temperature. This is very important during
freezing weather. If for any reason your furnace
should fail to operate damage could result, such
as frozen water pipes.
CAUTION
FREEZE CAUTION!
Failure to follow this Caution could result in
property damage or personal injury.
Caution should be taken to prevent drains from
freezing or causing slippery conditions. Excessive
draining of condensate may cause saturated
ground conditions that may result in damage to
plants.
CAUTION
IGNITION FUNCTION!
Failure to follow this Caution may result in poor
ignition characteristics.
Maintain manifold pressure in high altitude
installations.
CAUTION
WATER DAMAGE!
Failure to follow this Caution could result in
property damage or personal injury.
It is recommended that an external overflow drain
pan be installed in all applications over a finished
ceiling to prevent property damage or personal
injury from leaking condensate.
5
SAFETY SECTION — FURNACES
CAUTION
HOT SURFACE!
Failure to follow this Caution could result in
personal injury.
Do NOT touch igniter. It is extremely hot.
CAUTION
FURNACE SERVICE CAUTION!
Failure to follow this Caution could result in
property damage or personal injury.
Label all wires prior to disconnection when
servicing controls. Verify proper operation after
servicing. Wiring errors can cause improper and
dangerous operation.
WARNING
CARBON MONOXIDE POISONING
HAZARD!
Failure to follow the steps outlined below for each
appliance connected to the venting system being
placed into operation could result in carbon
monoxide poisoning or death.
The following steps shall be followed for
each appliance connected to the venting
system being placed into operation, while
all other appliances connected to the
venting system are not in operation:
•
CAUTION
DO NOT USE AS CONSTRUCTION
HEATER!
Failure to follow this Caution could result in
property damage or personal injury.
In order to prevent shortening its service life, the
Furnace should NOT be used as a “Construction
Heater” during the finishing phases of
construction until the requirements listed in the
Furnace Installation Guidelines section have been
met. Condensate in the presence of chlorides and
fluorides from paint, varnish, stains, adhesives,
cleaning compounds, and cement create a
corrosive condition which may cause rapid
deterioration of the heat exchanger.
CAUTION
•
•
•
WIRING INFORMATION!
Failure to follow this Caution could result in
property damage or personal injury.
The integrated furnace control is polarity
sensitive. The hot leg of the 120 VAC power must
be connected to the BLACK field lead.
•
•
•
6
Inspect the venting system for proper size
and horizontal pitch as required in the
National Fuel Gas Code, ANSI Z223.1/NFPA
54 or the CSA B149.1Natural Gas and
Propane Installation Code and these
instructions. Determine there is no blockage
or restriction, leakage, corrosion or other
deficiencies which could cause an unsafe
condition.
Close all doors and windows between the
space in which the appliance(s) connected to
the venting system are located. Also close
fireplace dampers.
Turn on clothes dryers and any appliance not
connected to the venting system. Turn on
any exhaust fans such as range hoods so
they are operating at maximum speed. Do
not operate a summer exhaust fan.
Follow the lighting instructions. Place the
appliance being inspected into operation.
Adjust the thermostat so appliance is
operating continuously.
Test for spillage from draft hood equipped
appliances at the draft hood relief opening
after 5 minutes of main burner operation.
Use the flame of a match or candle.
If improper venting is observed during any of
the above tests, the venting system must be
corrected in accordance with the National
Fuel Gas Code, ANSI Z221.1/NFPA 54 and/or
CSA B149.1 Natural Gas and Propane
Installation Code.
After it has been determined that each
appliance connected to the venting system
properly vents when tested, return all doors,
windows, exhaust fans, etc. to their previous
condition of use.
S9V2-VS-SVX001-1B-EN
SAFETY SECTION — FURNACES
CAUTION
CAUTION
VENTING REQUIREMENT!
EQUIPMENT DAMAGE!
Failure to follow this Caution could result in
property damage or personal injury.
For condensing furnaces, Do NOT run vent
through chimney for wood burning or oil Furnaces
or incinerators. If remaining free area between
single wall flue pipe and masonry chimney is to be
used for another gas appliance, venting area must
be sufficient to vent that appliance and that
appliance must be connected to chimney with
separate entry openings.
IMPORTANT – The single wall flue pipe joints must
be sealed. The 90° elbow connection to vertical
pipe must be sealed to prevent condensate
leakage to base of masonry chimney.
UV light exposure can cause the plastic blower
material to deteriorate which could lead to Blower
Housing Damage.
For units containing a plastic Blower Housing, Do
NOT install third party Ultra-Violet Air Cleaners
where the Blower Housing can be exposed to UV
light.
CAUTION
For more information, visit www.trane.com and www.
americanstandardair.com or contact your installing dealer.
6200 Troup Highway
Tyler, TX 75707
Coil Caution
CAUTION
VENTING REQUIREMENT!
COIL REQUIREMENT!!
Failure to follow this Caution could result in
property damage or personal injury.
Condensing furnaces may be vented through
UNUSED chimneys. Do NOT run vent through
chim ney for wood burning or oil Furnaces or
incinerators or any other gas appliance.
IMPORTANT – The single wall flue pipe joints must
be sealed. The 90° elbow connection to vertical
pipe must be sealed to prevent condensate
leakage to base of masonry chimney.
Failure to follow this Caution could result in
property damage or personal injury.
4GXC* and 4MXC* coils installed on upflow
furnaces in vertical, horizontal left, or horizontal
right orientations without a factory installed metal
drain pan shield must use a MAY*FERCOLKITAA
kit. Coils installed on upflow furnaces must have
drain pans that are suitable for 400° F (205° C) or
have a metal drain pan shield. Downflow furnaces
do not require a metal drain pan shield or the use
of the MAY*FERCOLKITAA kit.
S9V2-VS-SVX001-1B-EN
7
Table of Contents
Accessories. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
General Start-up and Adjustment. . . . . . . . . . 66
Document Pack Contents S9V2-VS . . . . . . . . 10
Preliminary Inspections . . . . . . . . . . . . . . . . . . 66
Part List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Lighting Instructions . . . . . . . . . . . . . . . . . . . . . 66
Product Specification . . . . . . . . . . . . . . . . . . . . . . 11
Control and Safety Switch
Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 66
Furnace Installation Guidelines . . . . . . . . . . . . 13
Safety Practices and Precautions. . . . . . . . . . 13
General Guidelines . . . . . . . . . . . . . . . . . . . . . . 13
Furnace Combustion Air Exhaust
Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Locations and Clearances . . . . . . . . . . . . . . . . 14
Upflow Furnace in Upflow Position - Top
Vented Combustion Air . . . . . . . . . . . . . . . . . . 69
Outline Drawings . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Upflow Furnace in Upflow Position - Left
Side Vented Combustion Air. . . . . . . . . . . . . . 69
S9V2–VS Wiring Diagram . . . . . . . . . . . . . . . . . 17
Heating and Cooling Airflow Tables . . . . . . . 18
Furnace General Installation . . . . . . . . . . . . . . . 26
S-Series Furnace Panel Removal . . . . . . . . . . 26
Horizontal Installation in an Attic or
Crawlspace . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Gas Piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combustion and Input Check. . . . . . . . . .
Gas Valve Adjustment . . . . . . . . . . . . . . . .
High Altitude Derate. . . . . . . . . . . . . . . . . .
27
29
30
31
General Venting . . . . . . . . . . . . . . . . . . . . . . . . .
Special Case Venting . . . . . . . . . . . . . . . . .
Vent Terminations . . . . . . . . . . . . . . . . . . .
Attaching Vent Piping . . . . . . . . . . . . . . . .
32
33
34
35
Maximum Vent Length Table . . . . . . . . . . . . . 37
Horizontal Venting . . . . . . . . . . . . . . . . . . . . . . . 38
Horizontal Venting Through Wall
with Concentric Vent Kit . . . . . . . . . . . . . . 40
Venting Through The Roof . . . . . . . . . . . . 44
Air for Combustion and Ventilation. . . . . . . . 46
Duct Connections. . . . . . . . . . . . . . . . . . . . . . . . 48
Return Air Filters . . . . . . . . . . . . . . . . . . . . . . . . 56
Electrical Connections . . . . . . . . . . . . . . . . . . . 58
Field Wiring . . . . . . . . . . . . . . . . . . . . . . . . . 58
Upflow Furnace in Horizontal Left
Position - Top Vented Combustion
Air. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72
Upflow Furnace in Horizontal Left
Position - Side Vented Combustion
Air. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Upflow Furnace in Horizontal Right
Position - Top Vented Combustion
Air. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Upflow Furnace in Horizontal Right
Position - Left Side Vented Combustion
Air. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Downflow Furnace - Top Vented
Combustion Air . . . . . . . . . . . . . . . . . . . . . . . . . 85
Downflow Furnace - Left Side Vented
Combustion Air . . . . . . . . . . . . . . . . . . . . . . . . . 86
Integrated Furnace Control Menu. . . . . . . . . . 89
Belly Band Location. . . . . . . . . . . . . . . . . . . . . . 91
Integrated Furnace Control Display
Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Troubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Sequence of Operation . . . . . . . . . . . . . . . . . . . 115
Periodic Servicing Requirements . . . . . . . . . 118
Condensate Drain Instructions. . . . . . . . . . . . . 61
Vertical Applications . . . . . . . . . . . . . . . . . 61
8
S9V2-VS-SVX001-1B-EN
Accessories
Table 1. Accessories
Model Number
Description
Use with
BAYHANG
Horizontal Hanging Kit
All Upflow Furnaces
BAYVENT200B
Sidewall Vent Termination Kit
All Furnaces
BAYVENTCN200B
Sidewall Vent Termination Kit (Canada – CPVC)
All Furnaces
BAYAIR30AVENTA
Concentric Vent Kit
All Furnaces
BAYAIR30CNVENT
Concentric Vent Kit (Canada – CPVC)
All Furnaces
BAYREDUCE
Reducing Coupling (CPVC)
All Furnaces
BAYLIFTB
Dual Return Kit (B size extension)
B Cabinet Upflow Furnaces
BAYLIFTC
Dual Return Kit (C size extension)
C Cabinet Upflow Furnaces
BAYLIFTD
Dual Return Kit (D size extension)
D Cabinet Upflow Furnaces
BAYBASE205
Downflow Subbase
All Downflow Furnaces
Filter Access Door Kit (Downflow only)
All Downflow Furnaces
1” SlimFit Box with MERV 4 Filter
All Upflow Furnaces
BAYLPSS400*
Propane Conversion Kit with Stainless Steel Burners
All Furnaces
BAYMFGH200B
Manufactured/Mobile Housing Kit
All Furnaces
BAYHALT250
High Altitude Pressure Switch Kit
S9V2B040U3VSAE
BAYHALT251
High Altitude Pressure Switch Kit
S9V2B060U3VSAC/D
BAYHALT252
High Altitude Pressure Switch Kit
S9V2B080U4VSAC/D, S9V2B080D4VSAC/D,
S9V2C100D4VSAC/D
BAYHALT253
High Altitude Pressure Switch Kit
S9V2C100U4VSAC/D
BAYHALT254
High Altitude Pressure Switch Kit
S9V2D120U5VSAC/D
BAYCNDTRAP2
Inline Condensate Trap Kit used with Special Venting on 2” Vent Pipe
All Furnaces
BAYCNDTRAP3
Inline Condensate Trap Kit used with Special Venting on 3” Vent Pipe
All Furnaces
BAYFLTR206
BAYSF1165AA
(a)
(a)
Airflow greater than 1600 CFM requires dual returns
S9V2-VS-SVX001-1B-EN
9
Accessories
Document Pack Contents S9V2-VS
Item
Qty.
Description
1
1
Condensate Drain Tube Assembly
2
1
Inlet Vent (a)
3
1
Inlet Vent Gasket
4
1
Outlet Vent Assembly
5
1
Outlet Vent Gasket
6
6
Screws
Installation, Operation, and Maintenance
Upflow/Horizontal and Dedicated Downflow
Gas-Fired, Direct/Non-Direct Vent, 2-Stage
Condensing Variable Speed Furnaces with Variable Speed
Draft Inducer
U p ffllo w , C on v e r t i b l e t o
Ho rizontal Right o r
Ho rizontal Left
S9V2B040U3VSAE
S9V2B060U3VSAC/D
S9V2B080U4VSAC/D
S9V2C100U4VSAC/D
S9V2D120U5VSAC/D
D o w n ffllo w On ly
S9V2B080D4VSAC/D
S9V2C100D4VSAC/D
Note: Graphics in this document are for representation
only. Actual model may differ in appearance.
!
CAUTION
COIL REQUIREMENT!
(a)
(b)
Failure to follow this Caution could result in property damage or personal injury. 4GXC* and
4MXC* coils installed on upflow furnaces in vertical, horizontal left, or horizontal right
orientations without a factory installed metal drain pan shield must use a MAY*FERCOLKITAA
kit. Coils installed on upflow furnaces must have drain pans that are suitable for 400° F
(205°C) or have a metal drain pan shield. Downflow furnaces do not require a metal drain pan
shield or the use of the MAY*FERCOLKITAA kit.
7
1
Condensate Trap Grommet
8
1
Plug – Condensate/Gas
9
1
Plug – Electrical
10
2
Grommet – Condensate/Gas
11
1
Installation, Operation, and Maintenance
12
1
Owner Guide
13
1
Limited Warranty
14
1
2” to 3” Coupling – CPL00938 (b)
S9V2-VS-SVX001-1B-EN
SAFETY WA R NIN G
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning
equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person
could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that
are attached to the equipment.
December 2022
S 9V2 -V S- SVX001-1B-EN
3” inlet vent supplied with S9V2D120U5VS only. 2” inlet vent supplied with all other models.
Supplied with S9V2D120U5VS only.
Part List
•
Igniter
•
Inducer Assembly
•
Pressure Switch(es)
•
Flame Sensor
•
Blower Motor
•
Main Thermal Limit
•
In-shot Burner(s)
•
Blower Wheel
•
Roll-Out Switch(es)
•
Gas Valve
•
IFC (Integrated Furnace Control)
•
Reverse Air Switch(es)
10
S9V2-VS-SVX001-1B-EN
Product Specification
Model
S9V2B060U3
VSAC/D (a), (b)
S9V2B040U3
VSAE (a), (b)
Type
S9V2B080U4
VSAC/D (a), (b)
S9V2C100U4
VSAC/D (a), (b)
S9V2D120U5
VSAC/D (a), (b)
65,000
78,000
Upflow / Horizontal
RATINGS (c)
1st Stage Input BTUH
26,000
39,000
52,000
1st Stage Capacity BTUH (ICS)
25,700
38,450
51,050
64,200
77,050
2nd Stage Input BTUH
40,000
60,000
80,000
100,000
120,000
2nd Stage Capacity BTUH (ICS) (d)
39,350
57,700
76,700
97,150
116,250
1st Stage Temp. Rise (Min. - Max.) °F
25 - 55
25 - 55
30 - 60
25 - 55
35 - 65
2nd Stage Temp. Rise (Min. - Max.) °F
30 - 60
35 - 65
35 - 65
35 - 65
40 - 70
AFUE (%) (d)
97.0
Return Air Temp. (Min. - Max.) °F
45°F - 80°F
BLOWER DRIVE
DIRECT
Diameter - Width (in.)
11 X 8
11 X 10
No. Used
1
Speeds (No.)
Variable
CFM vs. in. w.g.
See Fan Performance Table
1/2
Motor HP
R.P.M.
Volts / Ph / Hz
FLA
3/4
1
8 / 9.6
10.5 / 10
Variable
120 / 1 / 60
6.4
5.7 / 6.4
COMBUSTION FAN - Type
Variable Speed
Drive - No. Speeds
Direct - Variable
Motor RPM
1/50 - 5000
Volts/Ph/Hz
33 - 110 / 3 / 60 - 180
FLA
Inducer Orifice
0.77
0.61
0.79
0.96
FILTER - Furnished?
1.05
1.19
1 - 20 X 25 - 1 in.
1 - 24 X 25 - 1 in.
No
Type Recommended
High Velocity
Hi Vel. (No.-Size-Thk.)
1 - 16 X 25 - 1 in.
VENT OUTLET DIA - MIN. (in.) (e)
2 Round
3 Round
INLET AIR DIA - MIN. (in.) (e)
2 Round
3 Round
HEAT EXCHANGER – Type
Fired
409 Stainless Steel
Unfired
29-4C Stainless Steel
Gauge (Fired)
20
ORIFICES - Main
Nat. Gas (Qty. - Drill Size)
2 - 45
3 - 45
4 - 45
5 - 45
6 - 45
Propane Gas (Qty. - Drill Size)
2 - 56
3 - 56
4 - 56
5 - 56
6 - 56
Inshot - 5
Inshot - 6
Redundant - Two Stage
GAS VALVE
120 V SiNi Igniter
PILOT SAFETY DEVICE – TYPE
BURNERS - TYPE - QTY
Inshot - 2
Inshot - 3
POWER CONN. - V/Ph/HZ (f)
Ampacity (Amps)
Inshot - 4
120 / 1 / 60
8.9
8.1 / 8.9
10.9 / 12.9
Max. Overcurrent Protection (Amps)
15
PIPE CONN. SIZE (IN.)
1/2
S9V2-VS-SVX001-1B-EN
14.1 / 13.4
11
Product Specification
Model
S9V2B080D4VSAC/D (a) , (b)
Type
S9V2C100D4VSAC/D (a), (b)
Downflow
RATINGS (c)
1st Stage Input BTUH
52,000
65,000
1st Stage Capacity BTUH (ICS)
51,150
64,300
2nd Stage Input BTUH
80,000
100,000
2nd Stage Capacity BTUH (ICS) (d)
76,900
97,071
1st Stage Temp. Rise (Min. - Max.) °F
30 - 60
2nd Stage Temp. Rise (Min. - Max.) °F
35 - 65
AFUE (%) (d)
97.0
Return Air Temp. (Min. - Max.) °F
45°F - 80°F
BLOWER DRIVE
Diameter - Width (in.)
DIRECT
11 X 8
No. Used
11 X 10
1
Speeds (No.)
Variable
CFM vs. in. w.g.
See Fan Performance Table
3/4
Motor HP
R.P.M.
Variable
Volts / Ph / Hz
120 / 1 / 60
8 / 9.6
FLA
COMBUSTION FAN - Type
Variable Speed
Drive - No. Speeds
Direct - Variable
Motor RPM
1/50 - 5000
Volts/Ph/Hz
33 - 110 / 3 / 60 - 180
FLA
Inducer Orifice
0.77
0.96
FILTER - Furnished?
No
Type Recommended
Hi Vel. (No.-Size-Thk.)
1.05
High Velocity
1 - 16 X 25 - 1 in.
1 - 20 X 25 - 1 in.
VENT OUTLET DIA - MIN. (in.) (e)
2 Round
INLET AIR DIA - MIN. (in.) (e)
2 Round
HEAT EXCHANGER – Type
Fired
409 Stainless Steel
Unfired
29-4C Stainless Steel
Gauge (Fired)
20
ORIFICES - Main
Nat. Gas (Qty. - Drill Size)
4 - 45
Propane Gas (Qty. - Drill Size)
4 - 56
5 - 56
Redundant - Two Stage
GAS VALVE
120 V SiNi Igniter
PILOT SAFETY DEVICE – TYPE
BURNERS - TYPE - QTY
5 - 45
Inshot - 4
Inshot - 5
POWER CONN. - V/Ph/HZ (f)
120 / 1 / 60
Ampacity (Amps)
10.9 / 12.9
Max. Overcurrent Protection (Amps)
15
PIPE CONN. SIZE (IN.)
1/2
(a)
(b)
(c)
(d)
(e)
(f)
12
Meets Energy Star
Central Furnace heating designs are certified to ANSI Z21.47 / CSA 2.3 - latest edition.
For U.S. Applications, above input ratings (BTUH) are up to 2,000 feet, derate 4% per 1,000 feet for elevations above 2,000 feet above sea level. For
Canadian applications, above input ratings (BTUH) are up to 4,500 feet, derate 4% per 1,000 feet for elevations above 4,500 feet above sea level.
Based on U.S. government standard tests.
Refer to Vent Length Table in this document.
The above wiring specifications are in accordance with National Electrical Code; however, installations must comply with local codes.
S9V2-VS-SVX001-1B-EN
Furnace Installation Guidelines
The following sections give general guidelines for the
installation of the gas furnaces.
Safety Practices and Precautions
The following safety practices and precautions must be
followed during the installation, servicing, and
operation of this furnace.
1. Use only with the type gas approved for this
furnace. Refer to the furnace rating plate.
2. Install the furnace only in a location and position as
specified in “Locations and Clearances” of these
instructions.
3. Provide adequate combustion and ventilation air to
the furnace space as specified in “Air for
Combustion and Ventilation” of these instructions.
4. Combustion products must be discharged
outdoors. Connect this furnace to an approved vent
system only, as specified in the “Venting” section
of these instructions.
5. Never test for gas leaks with an open flame. Use a
commercially available soap solution made
specifically for the detection of leaks to check all
connections, as specified in the “Gas Piping”
section of these instructions.
6. Always install the furnace to operate within the
furnace’s intended temperature-rise range with a
duct system which has an external static pressure
within the allowable range, as specified on the unit
rating plate. Airflow within temperature rise for cfm
versus static is shown in this document
accompanying this furnace.
7. When a furnace is installed so that the supply ducts
carry air circulated by the furnace to areas outside
the space containing the furnace, the return air shall
also be handled by a duct(s) sealed to the furnace
casing and terminating outside the space
containing the furnace.
8. A gas-fired furnace for installation in a residential
garage must be installed as specified in "Location
and Clearances" section of these instructions.
9. The furnace may be used for temporary heating of
buildings or structures under construction only
when the following conditions have been met:
a. The furnace venting system must be complete
and installed per manufacturer’s instructions.
b. The furnace is controlled only by a room
Comfort Control (no field jumpers).
c. The furnace return air duct must be complete
and sealed to the furnace.
d. The furnace input rate and temperature rise
must be verified to be within the nameplate
marking.
S9V2-VS-SVX001-1B-EN
e. A minimum 4” MERV 11 air filter must be in
place.
f.
100% of the furnace combustion air requirement
must come from outside the structure.
g. The Furnace return air temperature range is
between 45 and 80 Fahrenheit.
80% models = 55°F
90%+ models = 45°F
h. Clean the furnace, duct work, and components
upon substantial completion of the construction
process, and verify furnace operating conditions
including ignition, input rate, temperature rise,
and venting, according to the manufacturer’s
instructions.
10. I n t h e C o m m o n w e a l t h o f M a s s a c h u s e t t s , t h i s
product must be gas piped by a Licensed
Plumber or Gas Fitter.
This furnace is certified to leak 2% or less of nominal air
conditioning CFM delivered when pressurized to .5”
water column with all inlets, outlets, and drains sealed.
General Guidelines
The manufacturer assumes no responsibility for
equipment installed in violation of any code or
regulation.
It is recommended that Manual J of the Air
Conditioning Contractors Association (ACCA) or A.R.I.
230 be followed in estimating heating requirements.
When estimating heating requirements for installation
at Altitudes above 2000 ft., remember the gas input
must be reduced. See Combustion and Input Check.
Material in this shipment has been inspected at the
factory and released to the transportation agency
without known damage. Inspect exterior of carton
for evidence of rough handling in shipment.
Unpack carefully after moving equipment to
approximate location. If damage to contents is
found, report the damage immediately to the
delivering agency.
Codes and local utility requirements governing the
installation of gas fired equipment, wiring, plumbing,
and flue connections must be adhered to. In the
absence of local codes, the installation must conform
with latest edition of the National Fuel Gas Code ANSI
Z223.1 / NFPA 54 • National Installation Code, CAN/CGA
B149.1. The latest code may be obtained from the
American Gas Association Laboratories, 400 N. Capitol
St. NW, Washington D.C. 20001.
1-800-699-9277 or www.aga.org.
These furnaces have been classified as CATEGORY IV
furnaces in accordance with latest edition of ANSI
Z21.47 standards • CSA 2.3. Category IV furnaces
operate with positive vent static pressure and with a
13
Furnace Installation Guidelines
flue loss less than 17 percent. These conditions require
special venting systems, which must be gas tight and
water tight. These Category IV Direct Vent furnaces are
approved for installation in Manufactured/ Mobile
housing when used with BAYMFGH200B.
3. Is there sufficient space for servicing the furnace
and other equipment? A minimum of 24 inches
front accessibility to the furnace must be provided.
Any access door or panel must permit removal of
the largest component.
A manufactured (mobile) home installation must
conform with the Manufactured Home Construction
and Safety Standard, Title 24 CFR, Part 3280, or when
this Standard is not applicable, the Standard for
Manufactured Home Installations (Manufactured Home
Sites, Communities and Set-Ups), ANSI/NCS A225.1.
and/or MH Series Mobile Homes, CAN/CSA-Z240.
4. Are there at least 3 inches of clearance between the
furnace combustion air openings in the front panel
and any closed panel or door provided?
Locations and Clearances
6. Allow sufficient height in supply plenum above the
furnace to provide for cooling coil installation, if the
cooling coil is not installed at the time of this
furnace installation.
The location of the furnace is normally selected by the
architect, the builder, or the installer. However, before
the furnace is moved into place, be sure to consider the
following requirements:
1. Is the location selected as near the chimney or vent
and as centralized for heat distribution as practical?
2. Do all clearances between the furnace and
enclosure equal or exceed the minimums stated in
Clearance Table below?
Minimum clearance to combustible materials
Closet
5. Are the ventilation and combustion air openings
large enough and will they remain unobstructed? If
outside air is used, are the openings set 12" above
the highest snow accumulation level?
7. The furnace shall be installed so electrical
components are protected from water.
8. A vertical downflow furnace without a coil, must
use BAYBASE205 when installed on combustible
flooring.
9. If the furnace is installed in a garage, it must be
installed so that the burners, and the ignition
source are located not less than 18 inches above the
floor and the furnace must be located or protected
to avoid physical damage from vehicles.
Sides
0 in.
Back
1 in.
Top
1 in.
Front
0 in.
a. Permanent wave solutions
Bottom
0 in.
b. Chlorinated waxes and cleaners
Flue
0 in.
c. Chlorine based swimming pool chemicals
10. The gas furnace must not be located where
excessive exposure to contaminated combustion
air will result in safety and performance related
problems. Avoid the following contaminants:
24 in. minimum front clearance recommended for service
d. Water softening chemicals
Horizontal Closet and Alcove
e. De-icing salts or chemicals
Right Side
0 in.
f.
Left Side
0 in.
g. Halogen type refrigerants
Back
1 in.
Top
1 in.
h. Cleaning solvents (such as
perchloroethylene)
Bottom
0 in.
i.
Printing inks, paint removers, varnishes, etc.
0 in.
j.
Hydrochloric acid, Cements and glues
Flue
Horizontal Flue (discharge on left)
Right Side
0 in.
Left Side
0 in.
Rear
1 in.
Top
1 in.
Bottom
0 in.
Flue
0 in.
14
k. Antistatic fabric softeners for clothes dryers
l.
Closet
Carbon tetrachloride
Masonry acid washing materials
IMPORTANT: The furnace must be installed level. The
only allowable variation would be slightly to the left
and/ or forward in upflow installations or slightly
toward the front in horizontal installations. This is
necessary for proper condensate drainage.
S9V2-VS-SVX001-1B-EN
Outline Drawings
Table 2. 17.5”, 21” and 24.5” Upflow Cabinets
S9V2-VS-SVX001-1B-EN
15
Outline Drawings
Table 3. 17.5” and 21” Downflow Cabinets
16
S9V2-VS-SVX001-1B-EN
S9V2–VS Wiring Diagram
NOTES:
1. IF ANY OF THE ORIGINAL WIRING AS SUPPLIED WITH THIS FURNACE MUST BE REPLACED, IT MUST BE WITH WIRE HAVING A TEMPERATURE
RATING OF AT LEAST 105°C. WIRES 12, 48, 49, 50, AND 51 REQUIRE A TEMPERATURE RATING OF AT LEAST 250°C.
2. FOR PROPER AIRFLOW IN COOLING/HEAT PUMP MODES, Y1AND/OR Y2 MUST CONNECT FROM THE THERMOSTAT TO THE IFC LOW VOLTAGE TERMINAL STRIP.
3. FOR COOLING ONLY SYSTEMS, LEAVE Y1-O JUMPER IN PLACE ON THE IFC FOR CORRECT LED READOUT.
4. FOR HEATPUMP SYSTEMS, REMOVE THE Y1-O JUMPER, CONNECT "O" FROM THE THERMOSTAT TO "O" ON THE IFC LOW VOLTAGE TERMINAL STRIP FOR
CORRECT LED READOUT.
5. VSPD OD SYSTEMS REQUIRE DIFFERENT CONNECTIONS, SEE RELAY PANEL INSTRUCTIONS.
6. IF USING A SINGLE STAGE HEATING THERMOSTAT, JUMPER W1 AND W2 TERMINALS AT THE LOW VOLTAGE TERMINAL STRIP. HT2 WILL BE
SHOWN ON THE SEVEN SEGMENT DISPLAY AT ALL TIMES. SECOND STAGE OPERATION WILL BEGIN AFTER THE INTERSTAGE DELAY HAS COMPLETED.
7. AIRFLOW TABLES ARE LOCATED IN THE SERVICE FACTS. TO CHANGE AIRFLOW, REFER TO THE INTEGRATED FURNACE CONTROL MENU AND OPTIONS
TO SET AIRFLOW AND BLOWER DELAYS.
8. THE "BK" JUMPER MUST BE CUT WHEN APPLYING AN AIRFLOW COMMAND TO THE "BK" TERMINAL SUCH AS PULSE WIDTH MODULATION.
9. CORRECT PERSONALITY MODULE IS REQUIRED FOR PROPER FURNACE OPERATION AND IS SPECIFIC TO EACH MODEL AND SERIAL NUMBER. IT IS TO
REMAIN WITH THE ORIGINAL UNIT.
10. LINE CHOKE AND WIRE BK/28 ONLY USED ON MODELS WITH 1 HP MOTORS.
FRS FLAME_ROLLOUT1
11. SOME MODELS WITH 3/4 HP MOTORS MAY USE JUMPER BETWEEN WIRES BK/27 AND BK/28.
YL/48
YL/50
1
12. WIRE YL/45 AND RAF-2 ARE NOT PRESENT ON DOWNFLOW MODELS.
1
YL/47
YL/48
PS1
1JPR
12V
2
2JPR
Tx
3
GND
4
AC
5
AC
BLOWER
MOTOR
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12
BK/30
X
X
X
GR/56
Rx
3
GND
4
Tx
WH/16
WH/15
GR/8
BURNER BOX GND
BK BLACK
WH WHITE
YL YELLOW
7
PS2
6
TH
5
MVC
4
HLO
OR/11
3
PS1
BL/2
PR/1
2
TR
1
ILI
IFC
SEE NOTES 8
FP FLAME PROBE
IGN HOT SURFACE
IGNITER
IGN-H
2
BK JUMPER
FUSE
WH/21
BK/22
1
2
LINE
LINE
SCALE <VIEW SCALE>
BK W2W1 R G B/C Y2 Y1 O
SEE NOTES 2, 3, 4, 5, 6
CONDENSATE
SWITCH
LC LINE CHOKE
RAF REVERSE AIR FLOW
THERMAL LIMIT
INDUCER LIMIT
GROUND
BK JUMPER
Variable Speed (3-Phase) Inducer w/ ECM Blower Motor
OdU
Status Codes
Outdoor Unit
Blower Constant Fan Airflow Multiplier %
COF
1 dL Idle
CPC
Cooling (CFM/Ton)
Ht1 1st Stage Gas Heating
CPH
Heat Pump Heating (CFM/Ton)
Lr1 1st Stage Gas Heating
HOd
Learning Routine
Heat Off Delay (sec)
Inter-Stage Delay (sec)
HT2 2nd Stage Heating
9HC
Gas Heating CFM 2nd Stage (1st Stage
Lr2 2nd Stage Gas Heat
Learning Routine
is not adjustable) (Airflow x10)
Run Test Mode
rUn
ArF Airflow (followed by
Airflow times 10)
Error Codes
Loss of the IRQ/other internal failures
E01
COF Continuous Fan
E2.1 Retry exceeded (Failed to est flame)
CL1 1st Stage Cooling
CL2 2nd Stage Cooling
E2.2 Recycles exceeded (loss of established
flame) or 10X PS1 open
HP1 1st Stage Heat Pump
E2.3 1st Stage Gas Valve not energized when
HP2 2nd Stage Heat Pump
it should be exceeded after 10 times
dFt Defrost Mode
E2.4 Redundant Relay (HLO output) Not
Menu Options
Energized when it should be
Err Active Alarm Menu
exceeded after 10 times
L6 F Last 6 Faults (To Clear,
Hold Option Button 5 sec) E3.1 Shorted Pressure Switch, 1st Stage
E3.2 Open Pressure Switch, 1st Stage
Cr Code Release Number
E3.3 Shorted Pressure Switch, 2nd Stage
COd Cooling Off Delay (sec)
E3.4 Open Pressure Switch, 2nd Stage
0dt Outdoor Tonnage
S9V2-VS-SVX001-1B-EN
E04
E05
E06
E6.3
E7.1
E7.2
E08
E09
E10
E11
E12
E13
E14
E15
E17
E18
JUMPER
LINE CHOKE
WH
WH
BK
BK
GND
AC
IND-W
1
BK
1
IND-V
2
3
RD
WH
2
IND-U
IGN-N
1
IGN-H
2
12V
AC
BK
GR
3
GR
4
VENT
MOTOR
(INDUCER)
**
BLOWER
MOTOR
1
BL
BL
Rx
2
WH
WH
GND
3
BK
WH
Tx
4
WH
BK
1
H
LINE
N
NEUTRAL
GND GROUND
HLO HIGH LIMIT OUTPUT
HLI HIGH LIMIT INPUT
PS1 1ST STAGE PRESSURE INPUT
PS2 2ND STAGE PRESSURE INPUT
IND INDUCER
IFC INTEGRATED FURNACE
CONTROL
RAF REVERSE AIR FLOW
Tx TRANSMIT SIGNAL
Rx RECEIVE SIGNAL
TH 24VAC (HOT)
TR 24VAC (COMMON)
MVC VALVE COMMON
MVL VALVE LOW STAGE
MVH VALVE HIGH STAGE
TNS TRANSFORMER
ILI INDUCER LIMIT INPUT
IGN IGNITER
FP FLAME PROBE
PSO PRESSURE SWITCH OUTPUT
24 V
PR
TR
2
BL
PS1
3
OR
12V
Tx
Rx
GND
HLO
4
PR
MVC
5
TNS
BK
24v
FACTORY
WIRING
FIELD
WIRING
INTEGRATED FURNACE CONTROL
ELECTRICAL RATING
INPUT: 24 VAC, 60 HZ.
XFMR SEC. CURRENT: 450 MA. + MV LOAD
MV OUTPUT: 1.5A @ 24 VAC
IND OUTPUT:
2.2 FLA,3.5 LRA @ 120 VAC MAX.
IGN OUTPUT: 2.0 A @ 120 VAC
CIRC. BLOWER OUTPUT:
14.5 FLA,25 LRA @ 120 VAC
HUMIDIFIER & AIR CLEANER
(DRY CONTACTS)
MAX. LOAD: 1.0 A @ 120 VAC
24 VAC OR 120 VAC MAY BE USED
FUSE: 5A
TIMINGS
PREPURGE: 5 SEC.
INTERPURGE: 60 SEC.
POST PURGE: 5 SEC.
IGN WARMUP: 20 SEC.
IAP: 2; TFI: 5 SEC.
RETRIES: 2 RECYCLES: 10
HEAT ON DELAY: UP TO 30 SEC.
COOL ON DELAY: 0 SEC.
AUTO RESTART: 60 MIN.
Open Thermal Limit, Rollout Switch, or Reverse Airflow Switch
Flame detected, should not be present
Voltage reversed polarity or Bad Grounding
(1) Igniter relay fails, (2) Igniter open
1st stage gas valve (MVL) is energized when it should be off
Redundant Relay (HLO output) Energized when it should NOT
be
Flame current is low, but still strong enough to allow operation.
Open Inducer Limit Switch or Condensate Switch
Inducer Motor no communication response, could be
communication failure between two micro-controllers.
(1) 2nd stage gas valve energized when it should NOT be
(2) 2nd stage gas valve not energized when it should be
(3) 1st stage gas valve not energized when it should be
(4) Redundant relay (HLO output) not energized when it
should be
Open fuse
Blower HP/OEM ID
No PM and local copy bad
Both of Unit Data File in PM and local Unit
Data File are Corrupt
Blower motor no communication response
Blower communication failure on the control D346055P01 REV B
WH
6
RD
7
BR
GND
8
GR
MVL
9
RD
RD
MVH
10
BR
BL
HLI
11
BR
BR
PSO
12
BURNER
BOX GND
1
2
3
WH
FP 1
G B/C Y2 Y1 O
THERMOSTAT
BK W2 W1 R
FRS FLAME_ROLLOUT2
BR
YL
PS2
BR
THERMAL_LIMIT
YL
RAF-2
YL
120v
BL
TH
PS2
JUMPER
SEE NOTE 11
24 V
THERMOSTAT
PS PRESSURE
SWITCH
FRS FLAME ROLLOUT
SWITCH
1
TO PERSONALITY MODULE
OR ORANGE BR BROWN
PR PURPLE RD RED
GR GREEN
BL BLUE
** INTERNAL THERMAL PROTECTION
IGN-N
EAC
BR/7
RD/6
BL/5
PR/4
1
ILI
VENT
MOTOR
(INDUCER)
**
3
LINE
CHOKE
IGN
HUM
GND
8
BK/29
BK/28
1 2 3
MENU OPTION
1
2
3
4
MVL
2JPR
GR
GAS
VALVE
MVH
9
WH
LINE-N
SEE NOTE 10
LINE-H
HLI
10
1
BK/27
CIRC-H
11
TNS-H
BR/53
BR/10
RD/9
PSO
1
1
LINE
12
2
4
BK/14
BK/27
BK/13
1
12V
2
2
2
FP
1
4
3
YL
WH/17
2
3
CIRC-N
YL
RAF-1
YL
CONDENSATE
YL
IND-W
1
WH
PANEL LOOP
BK/18
RD/19
WH/20
TNS-N
NEUTRAL
4 3 2 1
CIRC-N
2
BL/26
WH/24
BK/23
WH/25
(blocked)
WH/12
IND-V
4
4
3
BK/18
RD/19
WH/20
LINE-N
IND-U
BK
BK
GND
X
WH/12
1
BK
TNS-N
X
BK/13
2
GR/YL
GR/YL
N
FLAME_PROBE
3
BK
1
X
BK/14
4
BK
2
TNS-H
WH
H
GR/32
RD/6
3
CIRC-H
1JPR
GR/YL/31
WH/16
120v
IGN
4
JUNCTION BOX
BK/23
5
GR/56
24v
GR/41
BK/39
BL/35
WH/37
WH/36
4
GR/32
BK/28
BL/26
WH/25
WH/24
YL/52
YL/46
OR/11
PR/4
YL/3
YL/44
YL/43
WH/40
3
LINE-H
3
GND
120v 60 Hz. 1 PH
POWER SUPPLY PER LOCAL CODE
2
WH/15
2
BL/35
WH/37
WH/36
BK/38
1
TNS
BL/2
1
Rx
3
2
1
2
RD/9
BL/5
BR/10
PR/1
1
3
1
GAS
VALVE
BK
BK
WH/17
PS2
YL/42
GR/41
WH/40
BK/39
2
WH
GR/YL/31
YL/47
1
2
IFC
YL/51
YL/45
YL/52
1
YL/51
THERMAL_LIMIT
YL/49
BK/29
PR/54
BR/7
YL/50
YL/45
*SEE NOTE 12
RAF-2
PANEL LOOP
BK
FRS FLAME_ROLLOUT2
TO BURNER BOX HARN
RAF-1
CONDENSATE
INDUCER_LIMIT
YL/3
BR/53
YL/49
2
N
FLAME-PROBE_c0
S9V2-VS
2
GND
H
WH
YL/46
S9V2-VS
120v 60 Hz. 1 PH
POWER SUPPLY PER LOCAL CODE
JUNCTION BOX
YL
INDUCER_LIMIT
PR
PR
PR
PS1
FRS FLAME_ROLLOUT1
YL
OR
YL
17
Heating and Cooling Airflow Tables
Table 4.
S9V2B040U3VSAE Heating Airflow
S9V2B040U3VSAE Furnace Heating Airflow (CFM), Temp. Rise (°F), and Power (Watts) vs. External Static Pressure with
Filter (iwc)
1st Stage Capacity = 25,700
2nd Stage Capacity = 39,350
Airflow
External Static Pressure
Target
Heating
Setting
0.1
0.3
0.5
0.7
0.9
Airflow
Low
468
Medium Low
598
Medium (a)
634
High
864
Low
650
Medium Low
830
Medium (a)
880
High
1200
Heating 1st
Stage
Heating 2nd
Stage
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
468
49
27
552
43
41
583
39
48
753
30
87
633
57
48
760
48
82
792
44
94
1023
34
192
452
51
58
600
39
76
635
36
83
786
29
129
636
57
92
786
46
132
817
44
142
1044
34
251
437
54
90
647
36
112
687
33
118
818
28
171
639
57
135
813
45
182
842
43
189
1066
33
310
421
56
121
694
32
147
739
30
153
850
27
214
643
56
179
840
43
232
867
43
237
1088
33
369
406
58
152
741
28
183
791
27
189
883
26
256
646
56
223
866
41
282
892
42
284
1109
32
428
Table 5. S9V2B040U3VSAE Cooling Airflow
S9V2B040U3VSAE Furnace Cooling Airflow (CFM) and Power (Watts) vs. External Static Pressure with Filter (iwc)
EXTERNAL STATIC PRESSURE (IN. W. C.)
Outdoor
Airflow
Tonnage Setting 0.1
0.3
0.5
0.7
0.9
"Odt" (tons)
(CFM/ton)
1.5
2.0
2.5
18
450
420
400
370
350
330
310
290
450
420
400
370
350
330
310
290
450
420
400
370
350
330
310
290
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
675 / 47
630 / 40
600 / 36
555 / 30
525 / 27
495 / 24
465 / 21
435 / 19
900 / 94
840 / 79
800 / 70
740 / 58
700 / 51
660 / 44
620 / 38
580 / 33
1125 / 167
1050 / 139
1000 / 123
925 / 100
875 / 87
825 / 121
775 / 101
725 / 88
675 / 81
630 / 72
600 / 67
555 / 60
525 / 56
495 / 51
465 / 48
435 / 44
900 / 137
840 / 120
800 / 109
740 / 95
700 / 86
660 / 78
620 / 71
580 / 64
1125 / 219
1050 / 188
1000 / 170
925 / 145
875 / 129
825 / 160
775 / 139
725 / 123
675 / 121
630 / 111
600 / 105
555 / 96
525 / 90
495 / 85
465 / 80
435 / 76
900 / 186
840 / 166
800 / 154
740 / 138
700 / 127
660 / 118
620 / 109
580 / 101
1125 / 278
1050 / 244
1000 / 223
925 / 195
875 / 178
825 / 205
775 / 182
725 / 164
675 / 166
630 / 154
600 / 147
555 / 136
525 / 130
495 / 124
465 / 118
435 / 113
900 / 240
840 / 218
800 / 204
740 / 185
700 / 173
660 / 162
620 / 152
580 / 142
1125 / 341
1050 / 304
1000 / 281
925 / 250
875 / 230
825 / 254
775 / 229
725 / 210
675 / 215
630 / 202
600 / 193
555 / 181
525 / 174
495 / 167
465 / 161
435 / 155
900 / 298
840 / 273
800 / 258
740 / 236
700 / 223
660 / 211
620 / 199
580 / 188
1125 / 408
1050 / 368
1000 / 343
925 / 308
875 / 287
825 / 308
775 / 281
725 / 260
S9V2-VS-SVX001-1B-EN
Heating and Cooling Airflow Tables
Table 5. S9V2B040U3VSAE Cooling Airflow (continued)
S9V2B040U3VSAE Furnace Cooling Airflow (CFM) and Power (Watts) vs. External Static Pressure with Filter (iwc)
EXTERNAL STATIC PRESSURE (IN. W. C.)
Outdoor
Airflow
Tonnage Setting 0.1
0.3
0.5
0.7
0.9
"Odt" (tons)
(CFM/ton)
3.0 (a)
450
420
400
370
350 (a)
330
310
290
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
1350 / 272
1260 / 226
1200 / 198
1110 / 161
1050 / 139
990 / 119
930 / 102
870 / 86
1350 / 334
1260 / 284
1200 / 254
1110 / 213
1050 / 188
990 / 166
930 / 146
870 / 128
1350 / 402
1260 / 348
1200 / 315
1110 / 271
1050 / 244
990 / 219
930 / 197
870 / 176
1298 / 440
1260 / 417
1200 / 381
1110 / 333
1050 / 304
990 / 277
930 / 252
870 / 229
1198 / 450
1198 / 450
1198 / 450
1110 / 399
1050 / 368
990 / 338
930 / 311
870 / 285
Table 6. S9V2B060U3VSAC/D Heating Airflow
S9V2B060U3VSAC/D Furnace Heating Airflow (CFM), Temp. Rise (°F), and Power (Watts) vs. External Static Pressure
with Filter (iwc)
1st Stage Capacity = 38,450
2nd Stage Capacity = 57,700
Airflow
External Static Pressure
Target
Heating
Setting
0.1
0.3
0.5
0.7
0.9
Airflow
Low
632
Medium Low (a)
814
Medium
893
High
1027
Low
800
Medium Low (a)
1030
Medium
1130
High
1300
Heating 1st
Stage
Heating 2nd
Stage
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
660
53
48
860
41
91
900
39
110
1068
33
165
851
64
81
1092
49
157
1132
47
201
1280
42
319
658
53
85
856
41
128
899
39
147
1061
33
202
843
64
127
1075
50
209
1128
47
255
1281
42
365
656
53
121
852
42
164
898
39
183
1054
33
239
835
64
172
1057
50
262
1124
48
308
1282
42
410
654
53
157
848
42
200
897
39
219
1047
33
276
826
64
218
1039
51
314
1119
48
362
1283
42
456
652
54
193
844
43
236
896
39
255
1041
33
313
818
64
264
1022
52
366
1115
48
416
1283
42
502
Table 7. S9V2B060U3VSAC/D Cooling Airflow
S9V2B060U3VSAC/D Furnace Cooling Airflow (CFM) and Power (Watts) vs. External Static Pressure with Filter (iwc)
Outdoor
Airflow
EXTERNAL STATIC PRESSURE (IN. W. C.)
Tonnage Setting 0.1
0.3
0.5
0.7
0.9
"Odt" (tons)
(CFM/ton)
1.5
2.0
450
420
400
370
350
330
310
290
450
420
400
370
350
330
310
290
S9V2-VS-SVX001-1B-EN
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
663 / 47
621 / 41
582 / 36
549 / 32
521 / 29
492 / 26
463 / 23
435 / 21
878 / 90
821 / 76
770 / 66
725 / 57
687 / 51
649 / 45
611 / 39
573 / 34
673 / 83
630 / 75
580 / 67
556 / 63
527 / 59
497 / 55
468 / 51
438 / 48
893 / 135
834 / 119
778 / 105
737 / 96
698 / 88
659 / 80
620 / 73
581 / 67
666 / 119
621 / 109
566 / 99
546 / 95
516 / 90
486 / 85
455 / 81
424 / 77
890 / 179
830 / 161
770 / 144
731 / 134
691 / 124
651 / 115
611 / 107
571 / 99
641 / 155
595 / 144
528 / 130
517 / 128
486 / 122
455 / 117
423 / 112
391 / 107
869 / 223
808 / 202
742 / 182
707 / 172
666 / 161
625 / 151
584 / 142
543 / 133
596 / 192
549 / 180
507 / 170
469 / 162
437 / 156
405 / 150
372 / 145
339 / 141
829 / 266
767 / 244
725 / 230
664 / 211
622 / 199
580 / 188
538 / 177
496 / 168
19
Heating and Cooling Airflow Tables
Table 7. S9V2B060U3VSAC/D Cooling Airflow (continued)
S9V2B060U3VSAC/D Furnace Cooling Airflow (CFM) and Power (Watts) vs. External Static Pressure with Filter (iwc)
EXTERNAL STATIC PRESSURE (IN. W. C.)
Outdoor
Airflow
Tonnage Setting 0.1
0.3
0.5
0.7
0.9
"Odt" (tons)
(CFM/ton)
2.5
3.0 (a)
450
420
400
370
350
330
310
290
450
420
400
370
350 (a)
330
310
290
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
1097 / 159
1023 / 133
976 / 117
902 / 97
854 / 84
806 / 73
759 / 63
711 / 55
1319 / 260
1229 / 215
1170 / 189
1082 / 154
1023 / 133
965 / 114
907 / 98
850 / 83
1114 / 212
1040 / 184
989 / 166
917 / 142
868 / 128
819 / 115
771 / 103
722 / 93
1340 / 321
1249 / 274
1189 / 245
1100 / 206
1040 / 184
981 / 163
922 / 144
863 / 127
1114 / 265
1039 / 233
990 / 214
915 / 187
865 / 171
815 / 157
766 / 143
716 / 130
1343 / 382
1251 / 331
1190 / 300
1099 / 258
1039 / 233
979 / 210
919 / 189
860 / 170
1097 / 317
1020 / 282
970 / 261
894 / 232
843 / 214
793 / 198
742 / 182
692 / 168
1328 / 441
1235 / 387
1173 / 354
1081 / 309
1020 / 282
960 / 257
899 / 234
838 / 212
1061 / 368
984 / 331
932 / 308
855 / 276
803 / 257
752 / 239
700 / 222
648 / 206
1295 / 501
1201 / 443
1139 / 408
1046 / 360
984 / 331
922 / 304
860 / 278
798 / 255
Table 8. S9V2B080U4VSAC/D Heating Airflow
S9V2B080U4VSAC/D Furnace Heating Airflow (CFM), Temp. Rise (°F), and Power (Watts) vs. External Static Pressure
with Filter (iwc)
1st Stage Capacity = 51,050
2nd Stage Capacity = 76,700
Airflow
External Static Pressure
Target
Heating
Setting
0.1
0.3
0.5
0.7
0.9
Airflow
Low
864
Medium Low (a)
907
Medium
958
High
1051
Low
1200
Medium Low (a)
1260
Medium
1330
High
1460
Heating 1st
Stage
Heating 2nd
Stage
20
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
860
54
87
907
51
97
957
49
112
1042
45
140
1211
60
196
1258
58
215
1307
55
260
1431
50
334
849
55
125
893
52
135
930
50
153
1015
46
182
1206
60
248
1261
57
271
1303
55
312
1412
51
390
838
56
163
879
53
174
903
51
194
989
47
225
1201
60
300
1263
57
326
1299
55
364
1393
52
445
827
57
200
865
54
212
876
52
234
962
47
267
1197
60
352
1265
57
381
1296
55
416
1374
52
501
816
58
238
852
54
251
849
53
275
936
48
310
1192
60
404
1268
57
436
1292
55
468
1355
53
557
S9V2-VS-SVX001-1B-EN
Heating and Cooling Airflow Tables
Table 9. S9V2B080D4VSAC/D Heating Airflow
S9V2B080D4VSAC/D Furnace Heating Airflow (CFM), Temp. Rise (°F), and Power (Watts) vs. External Static Pressure
with Filter (iwc)
1st Stage Capacity = 51,150
2nd Stage Capacity = 76,900
Airflow
External Static Pressure
Target
Heating
Setting
0.1
0.3
0.5
0.7
0.9
Airflow
Low
864
Medium Low
907
Medium (a)
958
High
1066
Low
1200
Medium Low
1260
Medium (a)
1330
High
1480
Heating 1st
Stage
Heating 2nd
Stage
Table 10.
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
780
60
94
807
57
101
862
54
117
977
48
128
1111
66
204
1193
59
232
1217
58
273
1342
53
329
776
60
135
811
57
151
862
54
168
963
49
179
1104
66
260
1201
59
296
1217
58
335
1328
54
389
772
61
176
814
58
201
862
54
219
949
50
230
1096
66
317
1209
59
360
1216
58
396
1313
55
448
768
61
216
818
58
252
861
54
271
934
51
281
1088
66
373
1217
59
424
1215
58
457
1299
56
508
764
61
257
822
58
302
861
54
322
920
52
332
1081
66
429
1225
59
488
1215
59
518
1284
56
567
S9V2B080U4VSAC/D / S9V2B080D4VSAC/D Cooling Airflow
S9V2B080U4VSAC/D / S9V2B080D4VSAC/D Furnace Cooling Airflow (CFM) and Power (Watts) vs. External Static
Pressure with Filter (iwc)
Outdoor
Airflow
EXTERNAL STATIC PRESSURE (IN. W. C.)
Tonnage Setting 0.1
0.3
0.5
0.7
0.9
"Odt" (tons)
(CFM/ton)
2.0
2.5
3.0
450
420
400
370
350
330
310
290
450
420
400
370
350
330
310
290
450
420
400
370
350
330
310
290
S9V2-VS-SVX001-1B-EN
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
892 / 91
834 / 77
785 / 67
738 / 58
700 / 52
662 / 46
624 / 40
585 / 35
1108 / 159
1035 / 133
988 / 118
916 / 97
868 / 85
820 / 74
772 / 64
724 / 56
1326 / 257
1239 / 214
1181 / 188
1094 / 153
1036 / 133
978 / 115
920 / 99
863 / 84
899 / 136
841 / 120
785 / 106
744 / 97
705 / 89
666 / 81
627 / 74
588 / 67
1120 / 213
1046 / 184
997 / 167
924 / 143
875 / 129
826 / 116
778 / 104
729 / 94
1341 / 320
1252 / 273
1193 / 245
1105 / 207
1046 / 184
987 / 164
929 / 145
870 / 128
893 / 180
834 / 161
781 / 146
736 / 134
697 / 125
658 / 116
619 / 107
580 / 100
1116 / 265
1041 / 233
992 / 214
918 / 188
868 / 172
819 / 157
770 / 143
721 / 131
1341 / 380
1250 / 330
1191 / 299
1101 / 258
1041 / 233
982 / 210
923 / 189
863 / 170
872 / 222
813 / 202
754 / 183
714 / 172
675 / 161
635 / 151
596 / 142
557 / 133
1098 / 315
1022 / 281
972 / 260
897 / 231
848 / 213
798 / 197
749 / 182
699 / 168
1325 / 439
1234 / 385
1173 / 353
1083 / 308
1022 / 281
962 / 256
902 / 233
843 / 212
838 / 265
777 / 243
737 / 229
677 / 210
638 / 198
598 / 187
558 / 177
518 / 168
1065 / 365
989 / 328
938 / 306
863 / 275
813 / 255
762 / 237
712 / 221
663 / 205
1296 / 497
1203 / 440
1142 / 405
1050 / 358
989 / 329
928 / 302
868 / 277
807 / 253
21
Heating and Cooling Airflow Tables
Table 10.
S9V2B080U4VSAC/D / S9V2B080D4VSAC/D Cooling Airflow (continued)
S9V2B080U4VSAC/D / S9V2B080D4VSAC/D Furnace Cooling Airflow (CFM) and Power (Watts) vs. External Static
Pressure with Filter (iwc)
EXTERNAL STATIC PRESSURE (IN. W. C.)
Outdoor
Airflow
Tonnage Setting 0.1
0.3
0.5
0.7
0.9
"Odt" (tons)
(CFM/ton)
4.0 (a)
Table 11.
450
420
400
370
350 (a)
330
310
290
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
1769 / 570
1650 / 469
1571 / 410
1453 / 330
1375 / 284
1297 / 242
1219 / 205
1142 / 172
1791 / 648
1670 / 544
1590 / 481
1470 / 397
1391 / 348
1312 / 303
1233 / 263
1154 / 227
1797 / 725
1675 / 616
1593 / 550
1472 / 462
1391 / 410
1311 / 363
1230 / 319
1151 / 280
1789 / 799
1664 / 686
1582 / 618
1458 / 526
1376 / 471
1295 / 420
1214 / 374
1133 / 332
1766 / 873
1639 / 756
1555 / 685
1430 / 588
1347 / 530
1265 / 477
1183 / 428
1101 / 384
S9V2C100U4VSAC/D Heating Airflow
S9V2C100U4VSAC/D Furnace Heating Airflow (CFM), Temp. Rise (°F), and Power (Watts) vs. External Static Pressure
with Filter (iwc)
1st Stage Capacity = 64,200
2nd Stage Capacity = 97,150
Airflow
External Static Pressure
Target
Heating
Setting
0.1
0.3
0.5
0.7
0.9
Airflow
Low
1146
Medium Low
1280
Medium
1359
High (a)
1446
Low
1450
Medium Low
1620
Medium
1720
High (a)
1830
Heating 1st
Stage
Heating 2nd
Stage
22
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
1132
52
139
1265
46
187
1291
45
211
1401
41
255
1421
63
272
1620
55
354
1646
53
408
1805
49
525
1120
52
192
1251
47
239
1269
46
272
1404
41
311
1416
63
336
1611
55
424
1643
54
484
1787
50
579
1108
52
246
1237
47
291
1248
46
332
1408
41
367
1412
63
401
1602
55
493
1640
54
559
1768
50
633
1097
52
299
1223
48
343
1226
47
393
1412
41
423
1408
63
466
1593
56
562
1638
54
635
1749
51
687
1085
53
352
1209
48
395
1205
47
454
1415
41
479
1404
63
531
1584
56
631
1635
54
711
1731
51
741
S9V2-VS-SVX001-1B-EN
Heating and Cooling Airflow Tables
Table 12.
S9V2C100D4VSAC/D Heating Airflow
S9V2C100D4VSAC/D Furnace Heating Airflow (CFM), Temp. Rise (°F), and Power (Watts) vs. External Static Pressure
with Filter (iwc)
1st Stage Capacity = 64,300
2nd Stage Capacity = 97,071
Airflow
External Static Pressure
Target
Heating
Setting
0.1
0.3
0.5
0.7
0.9
Airflow
Low
1080
Medium Low
1166
Medium (a)
1318
High
1361
Low
1500
Medium Low
1620
Medium (a)
1830
High
1890
Heating 1st
Stage
Heating 2nd
Stage
Table 13.
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
1068
55
101
1158
51
115
1326
46
153
1312
46
166
1514
58
223
1620
55
276
1768
50
372
1810
49
405
1048
57
151
1113
53
172
1272
48
206
1270
47
221
1478
60
297
1588
56
345
1746
51
446
1783
50
476
1029
60
201
1068
55
229
1218
50
259
1229
47
276
1441
61
370
1556
57
415
1724
52
520
1756
51
548
1009
63
251
1023
57
285
1164
51
312
1188
48
331
1404
63
443
1523
58
484
1702
53
594
1729
52
677
989
66
301
978
59
342
1111
53
365
1147
49
387
1367
64
516
1491
59
553
1620
53
668
1702
52
695
S9V2C100U4VSAC/D / S9V2C100D4VSAC/D Cooling Airflow
S9V2C100U4VSAC/D / S9V2C100D4VSAC/D Furnace Cooling Airflow (CFM) and Power (Watts) vs. External Static
Pressure with Filter (iwc)
Outdoor
Airflow
EXTERNAL STATIC PRESSURE (IN. W. C.)
Tonnage Setting 0.1
0.3
0.5
0.7
0.9
"Odt" (tons)
(CFM/ton)
2.5
3.0
3.5
450
420
400
370
350
330
310
290
450
420
400
370
350
330
310
290
450
420
400
370
350
330
310
290
S9V2-VS-SVX001-1B-EN
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
1153 / 111
1077 / 94
1061 / 90
950 / 69
899 / 60
848 / 53
796 / 46
745 / 39
1378 / 178
1289 / 149
1228 / 131
1138 / 108
1077 / 94
1016 / 81
955 / 70
894 / 59
1601 / 269
1498 / 224
1428 / 196
1324 / 160
1253 / 138
1183 / 119
1112 / 102
1041 / 86
1149 / 159
1073 / 138
1057 / 134
945 / 109
893 / 98
841 / 89
789 / 80
737 / 72
1376 / 234
1286 / 201
1225 / 181
1134 / 154
1073 / 138
1011 / 123
950 / 110
888 / 97
1599 / 334
1496 / 284
1426 / 254
1321 / 214
1251 / 190
1180 / 167
1109 / 147
1037 / 129
1147 / 208
1071 / 185
1054 / 180
942 / 151
890 / 140
838 / 129
786 / 119
733 / 110
1374 / 292
1284 / 256
1223 / 234
1132 / 203
1071 / 185
1009 / 168
947 / 153
885 / 138
1597 / 401
1494 / 347
1424 / 314
1319 / 270
1249 / 243
1178 / 218
1107 / 196
1035 / 175
1145 / 260
1068 / 235
1044 / 227
939 / 197
887 / 184
835 / 172
782 / 161
729 / 151
1372 / 352
1282 / 312
1221 / 288
1130 / 255
1068 / 235
1006 / 216
944 / 199
882 / 183
1594 / 469
1491 / 411
1422 / 376
1317 / 327
1246 / 298
1175 / 271
1104 / 246
1032 / 223
1141 / 314
1064 / 287
1021 / 273
935 / 246
882 / 232
830 / 219
777 / 208
724 / 198
1368 / 413
1277 / 371
1217 / 345
1125 / 309
1064 / 287
1002 / 266
940 / 248
877 / 231
1590 / 539
1487 / 477
1417 / 439
1313 / 387
1242 / 355
1171 / 326
1100 / 299
1028 / 275
23
Heating and Cooling Airflow Tables
Table 13.
S9V2C100U4VSAC/D / S9V2C100D4VSAC/D Cooling Airflow (continued)
S9V2C100U4VSAC/D / S9V2C100D4VSAC/D Furnace Cooling Airflow (CFM) and Power (Watts) vs. External Static
Pressure with Filter (iwc)
EXTERNAL STATIC PRESSURE (IN. W. C.)
Outdoor
Airflow
Tonnage Setting 0.1
0.3
0.5
0.7
0.9
"Odt" (tons)
(CFM/ton)
4.0 (a)
Table 14.
450
420
400
370
350 (a)
330
310
290
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
1820 / 388
1704 / 321
1626 / 281
1507 / 228
1428 / 196
1348 / 168
1268 / 143
1188 / 120
1819 / 462
1702 / 390
1624 / 347
1505 / 289
1426 / 254
1346 / 223
1266 / 195
1185 / 169
1816 / 538
1700 / 461
1622 / 415
1504 / 352
1424 / 314
1344 / 280
1264 / 248
1183 / 220
1812 / 615
1697 / 533
1619 / 484
1501 / 417
1422 / 376
1342 / 338
1261 / 304
1180 / 273
1807 / 693
1692 / 607
1614 / 554
1497 / 482
1417 / 439
1338 / 399
1257 / 362
1176 / 328
S9V2D120U5VSAC/D Heating Airflow
S9V2D120U5VSAC/D Furnace Heating Airflow (CFM), Temp. Rise (°F), and Power (Watts) vs. External Static Pressure
with Filter (iwc)
1st Stage Capacity = 77,050
2nd Stage Capacity = 116,250
Airflow
External Static Pressure
Target
Heating
Setting
0.1
0.3
0.5
0.7
0.9
Airflow
Low
1123
Medium Low
1332
Medium (a)
1404
High
1620
Low
1560
Medium Low
1850
Medium (a)
1950
High
2250
Heating 1st
Stage
Heating 2nd
Stage
Table 15.
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
CFM
Temp. Rise
Watts
1138
61
115
1371
51
182
1440
48
208
1669
42
315
1654
65
291
1980
55
456
2075
52
527
2280
48
795
1158
60
176
1383
50
251
1450
48
283
1674
42
388
1637
66
360
1951
56
539
2037
53
611
2197
50
819
1178
59
236
1394
50
320
1461
48
357
1680
41
460
1621
67
430
1922
57
621
1999
54
696
2114
52
842
1198
58
297
1406
49
389
1471
47
431
1685
41
533
1604
67
499
1893
58
704
1961
55
781
2032
54
865
1218
57
358
1417
49
457
1482
47
505
1691
41
605
1587
68
568
1864
58
787
1923
56
865
1949
56
888
S9V2D120U5VSAC/D Cooling Airflow
S9V2D120U5VSAC/D Furnace Cooling Airflow (CFM) and Power (Watts) vs. External Static Pressure with Filter (iwc)
EXTERNAL STATIC PRESSURE (IN. W. C.)
Outdoor
Airflow
Tonnage Setting 0.1
0.3
0.5
0.7
0.9
"Odt" (tons)
(CFM/ton)
3.0
3.5
24
450
420
400
370
350
330
310
290
450
420
400
370
350
330
310
290
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
1336 / 163
1248 / 137
1189 / 121
1102 / 100
1043 / 87
985 / 76
927 / 65
869 / 56
1559 / 244
1455 / 204
1386 / 179
1282 / 147
1214 / 127
1145 / 110
1077 / 94
1009 / 80
1346 / 221
1258 / 191
1199 / 173
1110 / 148
1051 / 133
991 / 119
932 / 107
872 / 95
1567 / 312
1464 / 267
1395 / 240
1292 / 203
1223 / 181
1154 / 160
1085 / 142
1016 / 125
1354 / 281
1265 / 247
1206 / 227
1116 / 198
1057 / 181
996 / 165
936 / 150
874 / 136
1574 / 381
1472 / 331
1403 / 301
1300 / 260
1231 / 235
1161 / 212
1092 / 191
1021 / 171
1360 / 341
1271 / 304
1211 / 281
1121 / 249
1060 / 230
999 / 211
937 / 195
875 / 179
1579 / 450
1477 / 396
1409 / 363
1305 / 318
1236 / 290
1166 / 265
1096 / 241
1025 / 219
1363 / 402
1274 / 361
1214 / 336
1123 / 301
1062 / 279
1000 / 259
938 / 241
875 / 223
1583 / 519
1481 / 462
1413 / 426
1309 / 376
1239 / 346
1169 / 318
1098 / 292
1026 / 267
S9V2-VS-SVX001-1B-EN
Heating and Cooling Airflow Tables
Table 15.
S9V2D120U5VSAC/D Cooling Airflow (continued)
S9V2D120U5VSAC/D Furnace Cooling Airflow (CFM) and Power (Watts) vs. External Static Pressure with Filter (iwc)
EXTERNAL STATIC PRESSURE (IN. W. C.)
Outdoor
Airflow
Tonnage Setting 0.1
0.3
0.5
0.7
0.9
"Odt" (tons)
(CFM/ton)
4.0
5.0 (a)
(a)
450
420
400
370
350
330
310
290
450
420
400
370
350 (a)
330
310
290
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
CFM / WATTS
1783 / 350
1663 / 290
1584 / 255
1465 / 207
1386 / 179
1307 / 154
1228 / 131
1150 / 111
2238 / 646
2086 / 533
1985 / 466
1834 / 377
1733 / 324
1633 / 277
1534 / 234
1435 / 196
1789 / 427
1671 / 362
1592 / 324
1474 / 271
1395 / 240
1317 / 211
1238 / 185
1159 / 162
2235 / 742
2086 / 623
1987 / 552
1838 / 456
1740 / 399
1641 / 347
1543 / 301
1444 / 259
1793 / 505
1677 / 436
1599 / 393
1481 / 336
1403 / 301
1324 / 269
1246 / 240
1166 / 214
2230 / 840
2085 / 714
1988 / 639
1842 / 536
1745 / 475
1647 / 419
1550 / 369
1452 / 322
1796 / 584
1681 / 509
1603 / 464
1487 / 401
1409 / 363
1330 / 328
1251 / 296
1171 / 266
2226 / 938
2083 / 806
1988 / 726
1844 / 617
1748 / 552
1652 / 492
1555 / 437
1458 / 387
1798 / 663
1683 / 583
1607 / 534
1491 / 467
1413 / 426
1334 / 388
1254 / 352
1174 / 320
2220 / 1036
2080 / 897
1986 / 813
1845 / 698
1750 / 628
1655 / 564
1558 / 505
1461 / 451
Factory Setting.
S9V2-VS-SVX001-1B-EN
25
Furnace General Installation
The following sections give general instructions for the installation of the gas furnaces.
S-Series Furnace Panel Removal
Note: Use a 5/16” Allen wrench to turn the four latches on the front panel a quarter turn.
Horizontal Installation in an Attic
or Crawlspace
The S-Series upflow condensing furnace may be
installed in an attic or crawl space in the horizontal let
or right position for needed airflow direction. The
horizontal furnace installation in an attic should be on a
service platform large enough to allow for proper
clearances on all sides and service access to the front
of the furnace. See “the Locations and Clearance
section,” p. 14. Line contact is only permissible
between lines formed by intersections of the top and
two sides of the furnace casing and building joists,
studs, or framing.
Horizontal Installation Hanging Using Straps
The furnace may be installed hanging in a hanging
position using straps. The furnace should be supported
at both ends and have an additional support in the
center of the furnace in front.
The furnace may be placed horizontally in a crawl
space on a pad or other noncombustible material
which will raise the unit for sufficient protection from
moisture.
The Furnace must be supported at both ends and the
middle when installed horizontally. The Furnace must
also be elevated approximately 6 inches to allow
clearance for the condensate drain to exit the cabinet in
the h o r i z o n t a l p o s i t i o n .
FURNACE MUST BE SUPPORTED AT ALL
FOUR CORNERS. BAYHANG - OPTIONAL
HORIZONTAL HANGING BRACKET KIT
TO APPROVED
OPEN / VENTED DRAIN
Note: The overflow stand pipe termination must be even with
or slightly below the bottom of the condensate trap.
Note: Water from the overflow pipe must drain into the
emergency drain pan.
26
S9V2-VS-SVX001-1B-EN
Furnace General Installation
Gas Piping
Important: When converting the gas piping from the factory default, the plug must be removed from the new gas piping location and swapped
with the grommet from the default location. The upflow furnace default is left side gas piping. The downflow furnace default is right
side gas piping.
Upflow furnace with gas piping on left side
Upflow furnace with gas piping on right side
1/8” NPT
Test Fitting
1/8” NPT
Test Fitting
Automatic Gas Valve
with Manual Shut-off
Main Manual
Shut-off Valve
Automatic Gas Valve
with Manual Shut-off
Gas Line
Grommet
Gas Line
Grommet
Ground
Union
Joint
Main Manual
Shut-off Valve
Ground
Union
Joint
Drip Leg
Drip Leg
Downflow furnace with gas piping on left side
Downflow furnace with gas piping on right side
1/8” NPT
Test Fitting
1/8” NPT
Test Fitting
Main Manual
Shut-off Valve
Gas Line
Grommet
Ground
Union
Joint
Gas Line
Grommet
Main Manual
Shut-off Valve
Ground
Union
Joint
Drip Leg
Drip Leg
Automatic Gas Valve
with Manual Shut-off
Horizontal left furnace with gas piping out left side
Automatic Gas Valve
with Manual Shut-off
Horizontal left furnace with gas piping out right side
1/8” NPT
Test Fitting
Main Manual
Shut-off Valve
Automatic Gas Valve
with Manual Shut-off
1/8” NPT
Test Fitting Main Manual
Shut-off Valve Ground
Union
Joint
Ground
Union
Joint
Gas Line
Grommet
Drip Leg
Gas Line
Grommet
Drip Leg
S9V2-VS-SVX001-1B-EN
Automatic Gas Valve
with Manual Shut-off
27
Furnace General Installation
Horizontal right furnace with gas piping out left side
Horizontal right furnace with gas piping out right side
Main Manual
Shut-off Valve
Automatic Gas Valve
with Manual Shut-off
Gas Line
Grommet
Ground
Union
Joint
1/8” NPT
Test Fitting
Ground
Union
Joint
Drip Leg
Automatic Gas
Valve with
Manual Shut-off
Gas Line
Grommet
Drip Leg
The upflow/horizontal furnace is shipped standard for
left side installation of gas piping. An opening with
plug is provided on the right side for an alternate gas
piping arrangement.
The installation of piping shall be in accordance with
piping codes and the regulations of the local gas
company. Pipe joint compound must be resistant to the
chemical reaction with liquefied petroleum gases.
I m p o r t a n t : If local codes allow the use of flexible gas
appliance connector, always use a new
listed connector. Do not use a connector
which has previously serviced another gas
appliance.
Refer to the piping table for delivery sizes. Connect gas
supply to the unit, using a ground joint union and a
manual shut-off valve. National codes require a
condensation drip leg to be installed ahead of the gas
valve.
The furnace and its individual shut-off valve must be
disconnected from the gas supply piping system
during any pressure testing of that system at test
pressures in excess of 1/2 psig (3.5 kPa).
The furnace must be isolated from the gas supply
piping by closing its individual manual shut-off valve
during any pressure testing of the gas supply piping
system at test pressures equal to or less than 1/2 psig
(3.5 kPa).
N o t e : Maximum pressure to the gas valve for natural
gas is 13.8" W.C. Minimum pressure is 5.0" W.C.
Maximum pressure to the gas valve for propane
is 13.8" W.C. Minimum pressure is 11.0" W.C.
28
Main Manual
Shut-off Valve
1/8” NPT
Test Fitting
NATURAL GAS ONLY
TABLE OF CUBIC FEET PER HOUR OF GAS
FOR VARIOUS PIPE SIZES AND LENGTHS
LENGTH OF PIPE
PIPE
SIZE
10
20
30
40
50
60
70
1/2
131
90
72
62
55
50
46
3/4
273
188
151
129
114
104
95
1
514
353
284
243
215
195
179
1–1/4
1060
726
583
499
442
400
368
This table is based on Pressure Drop of 0.3 inch W.C. and 0.6 SP.
GR. Gas
All gas fittings must be checked for leaks using a soapy
solution before lighting the furnace. D O N O T C H E C K
WITH AN OPEN FLAME!
For propane conversions on all S-Series Furnaces, use
BAYLPSS400* conversion kit with stainless steel
burners.
When installing our furnaces in a manufactured house,
use Manufactured Housing Accessory Kit,
BAYMFGH200B.
ORIFICE SIZES
INPUT
RATING
BTUH
NUMBER OF
BURNERS
40,000
60,000
MAIN BURNER ORIFICE
DRILL SIZE
NAT. GAS
PROPANE
GAS
2
45
56
3
45
56
80,000
4
45
56
100,000
5
45
56
120,000
6
45
56
S9V2-VS-SVX001-1B-EN
Furnace General Installation
Combustion and Input Check
1.
Make sure all gas appliances are off except the furnace.
2.
Clock the gas meter with the furnace operating (determine the
dial rating of the meter) for one revolution.
3.
Match the "Sec" column in the gas flow table with the time
clocked.
4.
5.
6.
Gas Flow in Cubic Feet Per Hour
2 Cubic Foot Dial
Sec.
Flow
Sec.
Flow
Sec.
Flow
Sec.
Flow
Read the "Flow" column opposite the number of seconds clocked.
10
732
31
236
52
141
86
85
Use the following factors if necessary:
11
666
32
229
53
138
88
83
12
610
33
222
54
136
90
81
13
563
34
215
55
133
94
78
14
523
35
209
56
131
98
75
15
488
36
203
57
128
100
73
16
458
37
198
58
126
104
70
17
431
38
193
59
124
108
68
18
407
39
188
60
122
112
65
19
385
40
183
62
118
116
63
20
366
41
179
64
114
120
61
21
349
42
174
66
111
130
56
22
333
43
170
68
108
140
52
23
318
44
166
70
105
150
49
24
305
45
163
72
102
160
46
25
293
46
159
74
99
170
43
26
282
47
156
76
96
180
41
27
271
48
153
78
94
190
39
28
262
49
149
80
92
200
37
29
253
50
146
82
89
30
244
51
144
84
87
a.
For 1 Cu. Ft. Dial Gas Flow CFH = Chart Flow Reading ÷ 2
b.
For 1/2 Cu Ft. Dial Gas Flow CFH = Chart Flow Reading ÷ 4
c.
For 5 Cu. Ft. Dial Gas Flow CFH = 10X Chart Flow Reading ÷ 4
Multiply the final figure by the heating value of the gas obtained
from the utility company and compare to the nameplate rating.
This must not exceed the nameplate rating.
S9V2-VS-SVX001-1B-EN
29
Furnace General Installation
Gas Valve Adjustment
Changes can be made by adjusting the manifold pressure, or changing
orifices (orifice change may not always be required). To adjust the
manifold pressure:
1.
Turn off all electrical power to the system.
2.
Loosen (Do Not remove) the pressure tap test set screw one turn
with 3/32" hex wrench.
a.
White-Rodgers 36J
Gas Valve On/Off
Toggle Switch
Inlet Pressure
Boss
The pressure tap adjustment kit (KIT07611) contains a 3/32"
hex wrench, a 5/16" hose and a connector and can be
ordered through Global Parts.
3.
Attach a manifold pressure gauge with flexible tubing to the outlet
pressure boss marked "OUT P" on White- Rodgers gas valve
model 36J.
4.
Turn on system power and energize valve.
Important: Adjust 2nd stage on the gas valve before attempting to
adjust 1st stage.
5.
Adjust 2nd stage gas heat by removing the high (HI) adjustment
regulator cover screw.
a.
To increase outlet pressure, turn the regulator adjust screw
clockwise.
b.
To decrease outlet pressure, turn the regulator adjust screw
counterclockwise.
c.
Adjust regulator until pressure shown on manometer
matches the pressure specified in the table.
2nd Stage (HI) Manifold Pressure Adjustment
1st Stage (LO) Manifold Pressure Adjustment
The input of no more than nameplate rating and no less than
93% of the nameplate rating, unless the unit is derated for
high altitude.
Fuel Manifold Pressure Settings (inches w.c.)
Fuel
2nd Stage Max.
1st Stage Max.
Replace and tighten the regulator cover screw securely.
Natural Gas
3.5” W.C.
1.7” W.C.
Adjust 1st stage gas heat by removing the low (LO) adjustment
regulator cover screw.
Propane Gas
10.0” W.C.
6.0” W.C.
d.
6.
Outlet Pressure Boss
a.
To increase outlet pressure, turn the regulator adjust screw
clockwise.
b.
To decrease outlet pressure, turn the regulator adjust screw
counterclockwise.
c.
Adjust regulator until pressure shown on manometer
matches the pressure specified in the table.
The input of no more than nameplate rating and no less than
93% of the nameplate rating, unless the unit is derated for
high altitude.
d.
7.
Replace and tighten the regulator cover screw securely.
Cycle the valve several times to verify regulator setting.
a.
Repeat steps 5-7 if needed.
8.
Turn off all electrical power to the system.
9.
Remove the manometer and flexible tubing and tighten the
pressure tap screw.
10. Using a leak detection solution or soap suds, check for leaks at the
pressure outlet boss and pressure tap test screw.
11. Turn on system power and check operation of the unit.
30
S9V2-VS-SVX001-1B-EN
Furnace General Installation
High Altitude Derate
Input ratings (BTUH) of these Furnaces are based on sea level
operation and should not be changed at elevations up to 2,000 ft. (610
m).
PART NUMBERS FOR REPLACEMENT ORIFICES
DRILL SIZE
PART
NUMBER
DRILL SIZE
PART
NUMBER
44
ORF00501
54
ORF00555
45
ORF00644
55
ORF00693
46
ORF00909
56
ORF00907
47
ORF00910
57
ORF00908
48
ORF01099
58
ORF01338
49
ORF00503
59
ORF01339
50
ORF00493
If the installation is 2,000 ft. (610 m) or above, the Furnace input rate
(BTUH) shall be reduced 4% for each 1,000 ft. above sea level.
Installations of this furnace at altitudes above 2,000 ft. (610 m) shall
be made utilizing the Vent Length table and/or Part Numbers for
Replacement Orifices table in these installation instructions.
The Furnace input rate shall be checked by clocking the gas flow rate
(CFH) and multiplying by the heating value obtained from the local
utility supplier for the gas being delivered at the installed altitude.
Input rate changes can be made by adjusting the Manifold Pressure
(min 3.0 - max 3.7 in. W.C. - Natural Gas) or changing orifices (orifice
change may not always be required).
If the desired input rate can not be achieved with a change in Manifold
Pressure, then the orifices must be changed. Propane installations will
require an orifice change.
Important: Reinstall the replacement orifices to the same depth as
the orifices supplied with the equipment.
See the table for help in selecting orifices if orifice change is required.
Furnace input rate and temperature rise should be checked again after
changing orifices to confirm the proper rate for the altitude.
The vent length table shows the required vent lengths for installations
at various altitudes. Optional high altitude kits are available for
installations over 5000 feet. Installations above 12,000 feet are not
allowed.
Turn the main Gas Valve toggle switch within the unit to the "OFF"
position. Turn the external gas valve to "ON". Purge the air from the
gas lines. After purging, check all gas connections for leaks with a
soapy solution – DO NOT CHECK WITH AN OPEN FLAME. Allow 5
minutes for any gas that might have escaped to dissipate.
Propane Gas being heavier than air may require forced ventilation.
Turn the toggle switch on the Gas Valve in the unit to the "ON"
position.
The table lists the main burner orifices
used with the furnace. If a change of
orifices is required to correct the furnace
input rating refer to the part number for
replacement orifices table.
Installation of this furnace at altitudes
above 2000 ft (610m) shall be in
accordance with local codes, or in the
absence of local codes, the National Fuel
Gas Code, ANSI Z223.1/NFPA 54 or
National Standard of Canada, Natural
Gas and Propane Installation Code, CSA
B149.1. Installation of this furnace at
altitudes above 2,000 ft (610 m) shall be
made in accordance with the listed high
altitude conversion kit available with the
furnace.
Orifice
Twist Drill
Size If
Installed at
Sea Level
Altitude Above Sea Level
and Orifice Required at Other Elevations
2000
3000
4000
5000
6000
7000
8000
9000
10000
42
42
43
43
43
44
44
45
46
47
43
44
44
44
45
45
46
47
47
48
44
45
45
45
46
47
47
48
48
50
45
46
47
47
47
48
48
49
49
50
46
47
47
47
48
48
49
49
50
51
47
48
48
49
49
49
50
50
51
52
54
54
55
55
55
55
55
56
56
56
55
55
55
55
56
56
56
56
56
57
56
56
56
57
57
57
58
59
59
60
57
58
59
59
60
60
61
62
63
63
58
59
60
60
61
62
62
63
63
64
From National Fuel Gas Code — Table E.1.1(d)
S9V2-VS-SVX001-1B-EN
31
Furnace General Installation
General Venting
FURNACE EXHAUST MUST BE VENTED TO THE OUTDOORS. THESE
FURNACES ARE INDUCED DRAFT VENTED AND MUST NOT BE
CONNECTED TO ANY VENT SERVING ANOTHER APPLIANCE. PLEASE
NOTE THAT THESE FURNACES USE POSITIVE-PRESSURE VENT
SYSTEMS.
Proper venting is essential to obtain maximum efficiency from a
condensing Furnace. Proper installation of the vent system is
necessary to assure drainage of the condensate and prevent
deterioration of the vent system.
ETL has certified the design of condensing Furnaces for a minimum of
0" clearance from combustible materials to single wall plastic vent
pipe.
The recommended system is assembled from 2" or 3" plastic pipe and
fittings found in the Approved Vent Pipe Materials Table. Where the
system is routed to the outdoors through an existing masonry
chimney containing flue products from another gas appliance, or
where required by local codes, then 3" venting of Type 29- 4C
stainless steel must be used in place of PVC material.
These Furnaces have been classified as CATEGORY IV Furnaces in
accordance with ANSI Z21.47 “latest edition” standards. Category IV
Furnaces operate with positive vent pressure and with a vent gas
temperature less than 140°F above the dewpoint. These conditions
require special venting systems, which must be gas tight and water
tight.
Note: When an existing Furnace is removed from a venting system
serving other gas appliances, the venting system is likely to be
too large to properly vent the remaining attached appliances.
Important: These Furnaces may be installed as Direct Vent (sealed
combustion) or as Nondirect Vent (single pipe). The
Furnaces are shipped DIRECT VENT with sealed
combustion.
Important: Products installed in Canada must use vent systems that
are certified to the Standard for Type BH Gas Venting
Systems (ULC S636) for Class II-A venting systems (up
to 65°C). Components of the vent system must not be
interchanged with other vent systems or unlisted pipe or
fittings. Plastic components, specified primers, and glues
must be from a single system manufacturer and not
intermixed with other system manufacturer's vent
system parts. In addition, the first three feet of the vent
pipe must be visible for inspection.
When the vent pipe is exposed to temperatures below
freezing, e.g., when it passes through unheated spaces, etc.,
the pipe must be insulated with 1/2 inch (12.7 mm) thick
Armaflex-type insulation or equal.
If the space is heated sufficiently to prevent freezing, then the
insulation will not be required. If domestic water pipes are not
protected from freezing then the space meets the condition of
a heated space.
3” Venting requirements
Important: To determine if your application requires 3” venting, see
the Maximum Vent Length Table.
Important: Horizontal venting application must use the 2” x 3” offset
reducing coupling. Vertical venting applications do not
require the reducing coupling to be offset.
LABEL
SAYS
“TOP”
Note: If your furnace comes with a factory supplied 2" X 3" offset
reducing coupling it is used for 3" vent pipe installation. Make
sure the marking "TOP" is located on the top side of the pipe in
horizontal venting applications. The straight side of the
coupling must be on bottom for proper drainage of condensate
Note: For Canadian applications, BAYREDUCE 2” x 3” offset reducing
coupling meets ULC-S636 requirements. Make sure the
marking "TOP" is located on the top side of the pipe. The
straight side of the coupling must be on bottom for proper
drainage of condensate in horizontal venting.
CPL00938
2" TO 3" COUPLING
BAYREDUCE may be
used in Canadian
applications to meet
ULC-S636
CPL00938
2" TO 3" COUPLING
FIELD SUPPLIED
2” COUPLING
CPL00938 IS FACTORY
SUPPLIED ONLY WITH THE
120,000 BTUH UPFLOW
FURNACE MODELS
BAYREDUCE may be
used in Canadian
applications to meet
ULC-S636
FIELD SUPPLIED
2” COUPLING
CPL00938 IS FACTORY
SUPPLIED ONLY WITH THE
120,000 BTUH UPFLOW
FURNACE MODELS
32
S9V2-VS-SVX001-1B-EN
Furnace General Installation
Special Case Venting
Special instructions for direct vent furnace air intake.
In certain applications, particularly when the furnace is located in a
basement, there are certain conditions that can be met where warm
humid air from the outside is drawn into combustion air piping. If the
area where the piping is located is conditioned below 70° F,
condensation could occur inside the piping and ultimately drain into
the furnace compartment, which could lead to premature component
failure.
We recommend following one of the options to prevent this condition
from occurring and possibly damaging components within the
furnace:
Option 1
If possible, slope the inlet combustion air piping away from the
furnace. Condensation that may occur will now drain outside of the
home. The combustion air outlet piping must remain sloped back to
the furnace.
Option 1
Combustion air
exhaust
Combustion air
intake
Slope equals 1/4” per foot
Note: Inlet air piping is not considered to be part of the venting
system. The inlet air piping may be made from PVC.
Optional In-line Condenser Trap Kit
The BAYCNDTRAP2 and BAYCNDTRAP3 may be used for Option 1
venting. The in-line condenser trap kit must be installed on the
vertical section of the combustion air intake pipe.
Note: The in-line condenser trap may only be installed one way. See
the imprint on the trap to ensure the arrow is pointing towards
the furnace.
The BAYCNDTRAP2 is used when the system uses 2” vent pipe.
The BAYCNDTRAP3 is used when the system uses 3” vent pipe.
Combustion air
exhaust
Combustion air
intake
BAYCNDTRAP2
BAYCNDTRAP3
Field fabricated trap
Primary drain vent stack must
terminate below the bottom of
the condensate trap
To an approved
vented drain
Option 2 – Top combustion air intake
If sloping the combustion air intake pipe is not possible, install a DWV
Tee as close to the furnace as possible with drain and trap to prevent
condensation from occurring in the furnace cabinet. Do not tee AC
condensate and combustion air condensate trap together.
Primary drain vent stack must
terminate below the bottom of
the condensate trap
To an approved
vented drain
Option 3 – Side combustion air intake
If sloping the combustion air intake pipe is not possible, install an
approved DWV Tee as close to the furnace as possible with drain and
trap.
Option 3
Option 2
Combustion air
intake
Combustion air
exhaust
Combustion air
exhaust
Combustion air
intake
Approved DWV Tee
Field fabricated trap
Approved DWV Tee
Field fabricated trap
Primary drain vent stack must
terminate below the bottom of
the condensate trap
To an approved
vented drain
S9V2-VS-SVX001-1B-EN
Primary drain vent stack must
terminate below the bottom of
the condensate trap
To an approved
vented drain
33
Furnace General Installation
Vent Terminations
For DIRECT VENT APPLICATION: The Furnaces must be
vented to the exterior of the house and combustion air MUST
come through the inlet air pipe from OUTSIDE AIR.
Note: BAYVENT* accessories can be used for inlet and outlet
terminals when the pipes do not exit the structure
together. For Canadian applications, venting systems
must meet ULC-S636 requirements.
For NONDIRECT VENT APPLICATION: The Furnace shall be
vented to the exterior of the house, but combustion air may
enter from the surrounding area as long as combustion air
requirements are met. (See AIR FOR COMBUSTION AND
VENTILATION)
Vent terminations
•
BAYVENT200B
•
BAYAIR30AVENTA
Vent terminations – Canadian applications. Meets ULC-S636 requirements.
•
BAYVENTCN200B
•
BAYAIR30CNVENT
FURNACE VENT / INLET PIPE INSTALLATION IN TWO PRESSURE ZONE CONFIGURATIONS
There are many different variations of the vent / inlet air pipe combination. The vent / inlet air combination used for installation of these
Furnaces depends on the needs of the location. However, these guidelines must be followed:
1.
The Furnace must vent outside the structure.
2.
Furnace combustion air requirements must be met for non-direct, single pipe applications.
3.
For direct vent application of these Furnaces, the vent pipe and air inlet pipe do not have to exit in the same air space or even on the same
surface of the structure. However, the longest individual pipe will decide the value for the longest allowable equivalent vent/ inlet air length
as shown in the vent length table.
Note: For single pressure zone applications, see the Horizontal Venting section.
The following are EXAMPLES ONLY.
EX. 1 –
Example 1 shows the vent pipe exhausting through the roof and
the inlet air coming from the interior of the house. The inlet air
coming from the interior of the house must meet combustion
requirements for area, etc., as shown in the section AIR FOR
COMBUSTION AND VENTILATION.
Vent
Air
Inlet
Note: If only the flue gas pipe is to the outside of the structure,
a straight section of pipe (long enough to exit the Furnace
cabinet) must be attached to the inlet air side with an
elbow (which is 5 to 10 equiv. ft.) installed on the end to
prevent dust and debris from falling directly into the
Furnace.
EX. 2 –
Furnace
Attic
Vent
The inlet air does not have to come from outside the structure.
Example 2 shows the inlet air, may come from the attic if the
requirements for combustion air are met as shown in the section
AIR FOR COMBUSTION AND VENTILATION.
Vent
Air
Inlet
Note: If only the flue gas pipe is to the outside of the structure,
a straight section of pipe (long enough to exit the Furnace
cabinet) must be attached to the inlet air side with an
elbow (which is 5 to 10 equiv. ft.) installed on the end to
prevent dust and debris from falling directly into the
Furnace.
(See Note)
Furnace
EX. 3 –
Vent
Example 3 shows that the exhaust vent may go vertical while
the inlet air may be on any side of the structure. The vent pipe
would decide the maximum equivalent length for the pip
depending on the furnace and pipe size.
Air
Inlet
Furnace
34
S9V2-VS-SVX001-1B-EN
Furnace General Installation
EX. 4 –
Example 4 shows the vent exiting one side of the house while the inlet
air is on the opposite side of the structure. Here the vent pipe length
must be within the allowable length for the size of Furnace and size of
the vent pipe. This example demonstrates that the pipes do not have
to exit on the same side of the structure.
Vent
Air
Inlet
Furnace
Attaching Vent Piping
VENT FITTING MATERIAL – PLASTIC
Gas and liquid tight single wall vent fittings, designed for resistance to corrosive flue condensate, MUST be used throughout.
Listed in the Approved Vent Pipe Materials table are designations for different types of 2" and 3" size pipe and fittings that meet these
requirements. The materials listed are various grades of PVC, CPVC, ABS, PolyPro® by DuraVent , Z-Dens by Novaflex Group, Innoflue® by
Centrotherm, ECCO™ polypropylene venting system, and PolyFlue™ polypropylene venting systems.
ATTACHING VENT PIPING
Important: Products installed in Canada must use vent systems that are certified to the Standard for Type BH Gas Venting Systems (ULC
S636) for Class II-A venting systems (up to 65°C). Components of the vent system must not be interchanged with other vent
systems or unlisted pipe or fittings. Plastic components, specified primers, and glues must be from a single system manufacturer
and not intermixed with other system manufacturer's vent system parts. In addition, the first three feet of the vent pipe must be
visible for inspection.
PIPE JOINTS: All joints must be fastened and sealed per manufacturer instructions and local and national codes to prevent escape of
combustion products into the building.
MANUFACTURED MODULAR VENTING SYSTEMS
WARNING
WARNING
CARBON MONOXIDE POISONING
HAZARD!
CARBON MONOXIDE POISONING
HAZARD!
Failure to follow this Warning may result in property
damage, severe personal injury, or death.
See the Approved Vent Pipe Materials table for
manufactured modular venting systems that are
approved for use with this product. Follow the
manufacturer’s installation instructions when
installing the venting system.
Failure to follow this Warning may result in property
damage, severe personal injury, or death.
Do not use cement on polypropylene venting
systems. Follow the manufacturer’s installation
instructions when installing the venting system.
For manufactured modular venting systems that are approved with this product see PVC vent fitting material table. Do not drill into
polypropelene venting pipes
S9V2-VS-SVX001-1B-EN
35
Furnace General Installation
BONDING OF PVC
Note: Follow venting instructions carefully when using PVC cement.
Note: It is recommended that the first joints from the Furnace be
connected and sealed with high temperature RTV. This will
enable the pipes to be removed later without cutting.
Be sure to properly support these joints.
Commercially available solvent cement for PVC must be used to join
PVC pipe fittings. Follow instructions on container carefully.
Pipe and Fitting – ASTM D1785, D2466, D2661, & D2665
PVC Primer and Solvent Cement – ASTM D2564
Procedure for Cementing Joints – Ref ASTM D2855
1.
Important: All joints must be water tight. Flue condensate is
somewhat acidic, and leaks can cause equipment
damage.
Cut pipe square, remove ragged edges and burrs. Chamfer end of
pipe, then clean fitting socket and pipe joint area of all dirt,
grease, moisture or chips.
2.
After checking pipe and socket for proper fit, wipe socket and pipe
with cleaner-primer. Apply a liberal coat of primer to inside
surface of socket and outside of pipe.
DO NOT ALLOW PRIMER TO DRY BEFORE APPLYING CEMENT.
3.
Apply a thin coat of cement evenly in the socket. Quickly apply a
heavy coat of cement to the pipe end and insert pipe into fitting
with a slight twisting movement until it bottoms out.
4.
Hold the pipe in the fitting for 30 seconds to prevent tapered
socket from pushing the pipe out of the fitting.
Seal INLET AIR PIPE
with RTV sealant
5.
Wipe all excess cement from the joint with a rag. Allow 15
minutes before handling. Cure time varies according to fit,
temperature and humidity.
Connection of the pipe and collar of the combustion air inlet should
just be a friction fit. It is recommended that the inlet air joint be sealed
with RTV type sealant to allow the joint to be separated for possible
future service. The inlet and vent pipes must be properly supported
throughout the entire length.
APPROVED VENT PIPE MATERIALS
PVC VENT FITTING MATERIAL
These fittings are available from your Gas Furnace Distributors.
ANSI/UL 1738 APPROVED VENT PIPE MATERIAL
ASTM STANDARD
PIPE TYPE
N/A
N/A
ALLOWABLE TEMPERATURE °F
MARKING
158
UL 1738
PVC
ASTM STANDARD
PIPE TYPE
ALLOWABLE TEMPERATURE °F
MARKING
F891
CELLULAR CORE
158
ASTM F891
D2665
DWV PIPE
158
ASTM D2665
D1785
SCH 40, 80, 120
158
ASTM 1785
D2241
SDR SERIES
158
ASTM D2241
ASTM STANDARD
PIPE TYPE
ALLOWABLE TEMPERATURE °F
MARKING
CPVC
D2846
CPVC 41
212
ASTM D2846
F441
SCH 40, 80
212
ASTM F441
F442
SDR SERIES
212
ASTM F442
ASTM STANDARD
PIPE TYPE
ALLOWABLE TEMPERATURE °F
MARKING
D2661
SCH 40 DWV
180
ASTM D2661
F628
SCH 40 DWV CELLULAR CORE
180
ASTM F628
ABS
PolyPro® by DuraVent, Z-Dens by Novaflex Group, Innoflue® by Centrotherm, System 1738 by IPEX, ECCO™ polypropylene venting system,
and PolyFlue™ polypropylene venting systems.
36
ASTM STANDARD
PIPE TYPE
ALLOWABLE TEMPERATURE °F
MARKING
N/A
N/A
230
ULC-S636
S9V2-VS-SVX001-1B-EN
Furnace General Installation
Maximum Vent Length Table
Maximum Total Equivalent Length in Feet
for Vent and Inlet Air (See Notes)
Model
2 inch or 2.5 inch Pipe
3 inch or 4 inch Pipe
Altitude 0–2,000 Feet
S9V2B040U3VS, S9V2B060U3VS
200
S9V2B080U4VS, S9V2B080D4VS
100
200
S9V2C100U4VS, S9V2C100D4VS
50
200
S9V2D120U5VS
Note 1
200
200
Altitude 2,001–5,400 Feet
S9V2B040U3VS, S9V2B060U3VS
200
200
S9V2B080U4VS, S9V2B080D4VS
80
120
S9V2C100U4VS, S9V2C100D4VS
50
150
Note 1
200
S9V2D120U5VS
Altitude 5,401–7,800 Feet
S9V2B040U3VS, S9V2B060U3VS
100
150
S9V2B080U4VS, S9V2B080D4VS
50
70
S9V2C100U4VS, S9V2C100D4VS
Note 1
100
S9V2D120U5VS
Note 1
100
Altitude 7,801–10,100 Feet
S9V2B040U3VS, S9V2B060U3VS
50
90
S9V2B080U4VS, S9V2B080D4VS
Note 1
50
S9V2C100U4VS, S9V2C100D4VS
Note 1
50
S9V2D120U5VS
Note 1
50
Notes:
1.
Not allowed
2.
For PolyPro® by Duravent, Z-DENS by Novaflex Group, InnoFlue®by Centrotherm, ECCO™ polypropylene venting system, and Polyflue™
manufactured modular venting systems that are in the approved vent pipe material table, fitting equivalent vent lengths may be different
from what is shown in Note 6. Refer to the venting system manufacturer’s installation instruction for appropriate venting diameters and
equivalent lengths.
3.
Minimum vent length for all models: 15' equivalent.
4.
DO NOT MIX PIPE DIAMETERS IN THE SAME LENGTH OF PIPE OUTSIDE THE FURNACE CABINET (Except adapters at the top of the furnace).
If different inlet and vent pipe sizes are used, the vent pipe must adhere to the maximum length limit shown in the table above (See note 7
below for exception). The inlet pipe can be of a larger diameter, but never smaller than the vent pipe.
5.
MAXIMUM PIPE LENGTHS MUST NOT BE EXCEEDED! THE LENGTH SHOWN IS NOT A COMBINED TOTAL, IT IS THE MAXIMUM LENGTH OF
EACH (Vent or Inlet air pipes).
6.
One SHORT radius 90° elbow is equivalent to 10' of 4" pipe, 10' of 3" pipe, or 8’ of 2" pipe. One LONG radius elbow is equivalent to 6' of 4"
pipe, 7’ of 3" pipe, or 5' of 2" pipe. Two 45° elbows equal one 90° LONG elbow. One MITERED elbow is equivalent to 12’ of 3” pipe or 12’ of
2” pipe.
7.
The termination tee or bend must be included in the total number of elbows. If the BAYAIR30AVENTA or BAYAIR30CNVENT termination kit
is used, the equivalent length of pipe is 5 feet. For BAYVENT200B and BAYVENTCN200B the equivalent length is 0 feet.
8.
For Canadian applications, venting systems must meet ULC-S636 requirements.
9.
The INLET AIR of one pipe systems require the installation of a minimum of one 90° elbow (to prevent dust and debris from falling straight
into the furnace).
S9V2-VS-SVX001-1B-EN
37
Furnace General Installation
Horizontal Venting
Note: Insure that vent piping is sloped 1/4" per foot and that piping is supported properly to prevent sags and condensate pooling.
3” Venting requirements
Important: To determine if your application requires 3” venting, see the Maximum Vent Length Table.
Important: Horizontal venting application must use the 2” x 3” offset reducing coupling. Vertical venting applications do not require the
reducing coupling to be offset.
When the vent pipe is exposed to temperatures below freezing, e.g., when it passes through unheated spaces, etc., the pipe
must be insulated with 1/2 inch (12.7 mm) thick Armaflex-type insulation or equal.
If the space is heated sufficiently to prevent freezing, then the insulation will not be required. If domestic water pipes are not
protected from freezing then the space meets the condition of a heated space.
Note: If your furnace comes with a factory supplied 2" X 3" offset
reducing coupling it is used for 3" vent pipe installation. Make
sure the marking "TOP" is located on the top side of the pipe in
horizontal venting applications. The straight side of the
coupling must be on bottom for proper drainage of condensate.
Note: For Canadian applications, BAYREDUCE 2” x 3” offset reducing
coupling meets ULC-S636 requirements. Make sure the
marking "TOP" is located on the top side of the pipe. The
straight side of the coupling must be on bottom for proper
drainage of condensate in horizontal venting.
CPL00938
2" TO 3" COUPLING
LABEL
SAYS
“TOP”
BAYREDUCE may be
used in Canadian
applications to meet
ULC-S636
FIELD SUPPLIED
2” COUPLING
CPL00938 IS FACTORY
SUPPLIED ONLY WITH THE
120,000 BTUH UPFLOW
FURNACE MODELS
CPL00938
2" TO 3" COUPLING
FIELD SUPPLIED
2” COUPLING
CPL00938 IS FACTORY
SUPPLIED ONLY WITH THE
120,000 BTUH UPFLOW
FURNACE MODELS
BAYREDUCE may be used
in Canadian applications to
meet ULC-S636
COMBUSTIBLE MATERIAL WALL
A minimum clearance of 1" to combustible materials must be
maintained when using single wall stainless steel venting.
Shield material to be a minimum of 24 gauge stainless or aluminized
sheet metal. Minimum dimensions are 12"x12". Shield must be
fastened to both inside and outside of wall. Use screws or anchor type
fasteners suited to the outside or inside wall surfaces.
COUPLING
(PLASTIC
VENTING)
6 IN. MIN.
(TO JOINT)
1” CLEARANCE
(AIR SPACE)
STUD
PVC WALL
MOUNT FLANGE
(OPTIONAL)
APPROVED
TERMINATION
12” MINIMUM ABOVE
NORMALLY EXPECTED
SNOW ACCUMULATION
LEVEL
NONCOMBUSTIBLE MATERIAL WALL
The hole through the wall must be large enough to maintain pitch of
vent and properly seal.
Use cement mortar seal on inside and outside of wall.
COUPLING
(PLASTIC
VENTING)
6 IN. MIN.
(TO JOINT)
CEMENT
MORTAR SEAL
INSIDE &
OUTSIDE
PVC WALL
MOUNT FLANGE
(OPTIONAL)
APPROVED
TERMINATION
12” MINIMUM ABOVE
NORMALLY EXPECTED
SNOW ACCUMULATION
LEVEL
VENTING THROUGH COMBUSTIBLE WALLS
Pitch - 1/4 Inch Per Foot
CLEARANCE (0” ACCEPTABLE FOR PVC VENT PIPE)
(1” ACCEPTABLE FOR TYPE 29-4C STAINLESS STEEL VENT PIPE)
38
VENTING THROUGH NON-COMBUSTIBLE WALLS
Pitch - 1/4 Inch Per Foot
S9V2-VS-SVX001-1B-EN
Furnace General Installation
Table 16.
Horizontal Venting Through Wall
The vent for this appliance shall not terminate
1.
Over public walkways; or
2.
Near soffit vents or crawl space vents or other areas where condensate or vapor could create a nuisance or hazard or cause property
damage; or
3.
Where condensate vapor could cause damage or could be detrimental to the operation of regulators, relief valves. or other equipment.
Possible configurations for two pipe venting system. Both terminations must be located in the same pressure zone.
Important: Maintain 12” minimum clearance above highest anticipated snow level or grade, whichever is greater.
Note: All distances are centerline to centerline.
12” Min.
15” Max.
12” Min.
15” Max.
6” Min.
24” Max.
6” Min.
24” Max.
9” Minimum
minimum from end
of exhaust pipe to
end of inlet pipe
9” Minimum
minimum from end
of exhaust pipe to
end of inlet pipe
12” Min.
15” Max.
6” Min.
24” Max.
4” Min.
24” Max.
9” Minimum
minimum from end
of exhaust pipe to
end of inlet pipe
Elbow and Tee
Must be as close
together as
possible
6” Max.
to wall
12” Min. between
inlet and vent
terminations
4” Min.
24” Max.
VENT
INLET
4” Min.
24” Max.
S9V2-VS-SVX001-1B-EN
39
Furnace General Installation
Horizontal Venting Through Wall with Concentric Vent Kit
These Furnaces may be installed as direct vent (as shipped) or
as nondirect vent. Installation must conform to national,
state, and local codes.
The BAYVENT200B, BAYVENTCN200B, BAYAIR30AVENTA, and
BAYAIR30CNVENT vent & inlet terminals kits must be located at least
12" minimum above normally expected snow accumulation level.
Avoid areas where staining or condensate drippage may be a problem.
Location of the vent/wind terminal should be chosen to meet the
requirements for either direct or non-direct vent applications.
PITCH — Venting through the wall must maintain 1/4" per foot
pitched upward to insure that condensate drains back to the Furnace.
FLUE GAS DEGRADATION — The moisture content of the flue gas
may have a detrimental effect on some building materials. This can be
avoided by using the roof or chimney venting option. When wall
venting is used on any surface that can be affected by moisture, it is
recommended that a corrosion resistant shield (24 inches square) be
used behind the vent terminal. This shield can be wood, plastic, sheet
metal, etc. Also, silicone caulk all cracks, seams and joints within 3
feet of the vent terminal.
BAYVENT200B / BAYVENTCN200B
Note: For Canadian applications, horizontal vent termination kits
must meet ULC-S636.
ANCHORS
(4 req.)
"
7.2
3.2"
Over public walkways; or
2.
Near soffit vents or crawl space vents or other areas where
condensate or vapor could create a nuisance or hazard or cause
property damage; or
Where condensate vapor could cause damage or could be
detrimental to the operation of regulators, relief valves. or other
equipment.
For Canadian installations, if you used a ULC-S636 approved
manufactured modular venting system, a copy of the manufacturer's
instructions should remain with the system. The installation
instruction can be obtained from the vent termination manufacturer.
BAYVENTCN200B and BAYAIR30CNVENT meet ULC-S636
requirements.
12" MINIMUM
TO OVERHANG
COMBUSTION
AIR
SCREWS
(4 req.)
VENT
VENT
CAP
MAINTAIN 12" MINIMUM CLEARANCE
ABOVE HIGHEST ANTICIPATED SNOW LEVEL
OR GRADE WHICHEVER IS GREATER
The vent for this appliance shall not terminate
1.
VENT
PLATE
VENT
BAYAIR30AVENTA / BAYAIR30CNVENT(Sidewall)
3.
COMBUSTION
AIR
STRAP
(FIELD SUPPLIED)
RAIN CAP
VENT
VENT
1" + 1/2"
COMBUSTION AIR
ELBOW
(FIELD
SUPPLIED)
12" MIN TO
OVERHANG
1" + 1 2"
COMBUSTION
AIR
VENT
MAINTAIN 12 IN.
MINIMUM CLEARANCE
ABOVE HIGHEST
ANTICIPATED SHOW
LEVEL OR GRADE
WHICH EVER IS GREATER
40
S9V2-VS-SVX001-1B-EN
Furnace General Installation
Important: The Commonwealth of Massachusetts requires compliance with regulation 248 CMR 4.00 and 5.00 for installation of through – the
– wall vented gas appliances as follows:
For all side wall horizontally vented gas fueled equipment installed in every dwelling, building or structure used in whole or in part for residential
purposes, including those owned or operated by the Commonwealth and where the side wall exhaust vent termination is less than seven (7)
feet above finished grade in the area of the venting, including but not limited to decks and porches, the following requirements shall be
satisfied:
1.
INSTALLATION OF CARBON MONOXIDE DETECTORS. At the time of installation of the side wall horizontal vented gas fueled equipment, the
installing plumber or gasfitter shall observe that a hard wired carbon monoxide detector with an alarm and battery back-up is installed on
the floor level where the gas equipment is to be installed. In addition, the installing plumber or gasfitter shall observe that a battery
operated or hard wired carbon monoxide detector with an alarm is installed on each additional level of the dwelling, building or structure
served by the side wall horizontal vented gas fueled equipment. It shall be the responsibility of the property owner to secure the services of
qualified licensed professionals for the installation of hard wired carbon monoxide detectors.
a.
In the event that the side wall horizontally vented gas fueled equipment is installed in a crawl space or an attic, the hard wired carbon
monoxide detector with alarm and battery back-up may be installed on the next adjacent floor level.
b.
In the event that the requirements of this subdivision can not be met at the time of completion of installation, the owner shall have a
period of thirty (30) days to comply with the above requirements; provided, however, that during said thirty (30) day period, a battery
operated carbon monoxide detector with an alarm shall be installed.
2.
APPROVED CARBON MONOXIDE DETECTORS. Each carbon monoxide detector as required in accordance with the above provisions shall
comply with NFPA 720 and be ANSI/UL 2034 listed and IAS certified.
3.
SIGNAGE. A metal or plastic identification plate shall be permanently mounted to the exterior of the building at a minimum height of eight
(8) feet above grade directly in line with the exhaust vent terminal for the horizontally vented gas fueled heating appliance or equipment.
The sign shall read, in print size no less than one-half (1/2) inch in size, "GAS VENT DIRECTLY BELOW. KEEP CLEAR OF ALL
OBSTRUCTIONS".
4.
INSPECTION. The state or local gas inspector of the side wall horizontally vented gas fueled equipment shall not approve the installation
unless, upon inspection, the inspector observes carbon monoxide detectors and signage installed in accordance with the provisions of 248
CMR 5.08(2) (a)1 through 4.
This appliance requires a special venting system. If BAYAIR30AVENTA or BAYVENT200B are used, a copy of the installation instructions for the
kit shall remain with the appliance or equipment at the completion of installation. The venting system installation instructions can be obtained
from the manufacturer by writing to the following address:
Trane and American Standard
6200 Troup Highway
Tyler, TX 75707
Attention: Manager of Field Operations Excellence
Horizontal Vent Clearances
INSIDE
CORNER DETAIL
G
V
A
H
D
E
V
B
C
V
B
FIXED
CLOSED
V
L
I
B
V
OPERABLE
F
V
VENT TERMINAL
S9V2-VS-SVX001-1B-EN
X AIR SUPPLY INLET
X
V
X
V
J
B
V
V
M
B
B
FIXED
CLOSED
OPERABLE
A
K
AREA WHERE TERMINAL IS NOT PERMITTED
41
Furnace General Installation
Non-Direct Vent Termination Clearances
Canadian Installations
US Installations
A=
Clearance above grade, veranda, porch,
deck, or balcony
12 inches (30 cm)
12 inches (30 cm)
B=
Clearance to window or door that may be
opened
12 inches (30 cm) for appliances >
10,000 BTUH (3 kw) and ≤ 100,000
BTUH (30 kw), 36 inches (91 cm) for
appliances > 100,000 BTUH (30 kw)
4 feet (1.2m) below or to the side of
opening; 1 foot (0.3m) above opening
C=
Clearance to permanently closed window
*
*
D=
Vertical clearance to ventilated soffit
located above the terminal within a
horizontal distance of 2 feet (61 cm) from
the center line of the terminal
*
*
E=
Clearance to unventilated soffit
*
*
F=
Clearance to outside corner
*
*
G=
Clearance to inside corner
*
*
H=
Clearance to each side of center line
extended above meter/regulator
assembly
3 feet (91 cm) with a height 15 feet (4.5
m) above the meter/regulator assembly
*
I=
Clearance to service regulator vent outlet
3 feet (91 cm)
*
J=
Clearance to nonmechanical air supply
inlet to building or the combustion air
inlet to any other appliance
12 inches (30 cm) for appliances >
10,000 BTUH (3 kw) and ≤ 100,000
BTUH (30 kw), 36 inches (91 cm) for
appliances > 100,000 BTUH (30 kw)
4 feet (1.2 m) below or to side of opening;
1 foot (300 m) above opening
K=
Clearance to a mechanical air supply inlet
6 feet (1.83m)
3 feet (91 cm) above if within 10 feet
(3m) horizontally
L=
Clearance above a paved sidewalk or
paved driveway located on public
property
7 feet (2.13 m) and not located above
public walkways or other areas where
condensate or vapor can cause a
nuisance or hazard
7 feet (2.13 m) and not located above
public walkways or other areas where
condensate or vapor can cause a nuisance
or hazard
M=
Clearance under veranda, porch, deck, or
balcony
12 inches (30 cm) if veranda, porch,
deck, or balcony is fully open on a
minimum of two sides beneath the floor
12 inches (30 cm) where the area
beneath the veranda, porch, deck, or
balcony is open on not less than two
sides. The vent terminal is prohibited in
this location where only one side is open
Notes:
1.
The Canadian venting installations must be in accordance with local codes or in the absence of local codes with the current CSA B149.1
Natural Gas and Propane Installation Code.
2.
The US venting installations must be in accordance with local codes or in the absence of local codes with the current ANSI Z223.1/NFPA 54
National Fuel Gas Code.
* Clearance in accordance with local installation codes and the requirements of the gas supplier.
42
S9V2-VS-SVX001-1B-EN
Furnace General Installation
Direct Vent Termination Clearances
Canadian Installations
US Installations
A=
Clearance above grade, veranda, porch,
deck, or balcony
12 inches (30 cm)
12 inches (30 cm)
B=
Clearance to window or door that may be
opened
12 inches (30 cm) for appliances >
10,000 BTUH (3 kw) and ≤ 100,000
BTUH (30 kw), 36 inches (91 cm) for
appliances > 100,000 BTUH (30 kw)
9 inches (23 cm) for appliances > 10,000
BTUH (3 kw) and =/< 50,000 BTUH (15
kw), 12 inches (30 cm) for appliances >
50,000 BTUH (15 kw)
C=
Clearance to permanently closed window
*
*
D=
Vertical clearance to ventilated soffit
located above the terminal within a
horizontal distance of 2 feet (61 cm) from
the center line of the terminal
*
*
E=
Clearance to unventilated soffit
*
*
F=
Clearance to outside corner
*
*
G=
Clearance to inside corner
*
*
H=
Clearance to each side of center line
extended above meter/regulator
assembly
3 feet (91 cm) with a height 15 feet (4.5
m) above the meter/regulator assembly
*
I=
Clearance to service regulator vent outlet
3 feet (91 cm)
*
J=
Clearance to nonmechanical air supply
inlet to building or the combustion air
inlet to any other appliance
12 inches (30 cm) for appliances >
10,000 BTUH (3 kw) and =/< 100,000
BTUH (30 kw), 36 inches (91 cm) for
appliances > 100,000 BTUH (30 kw)
9 inches (23 cm) for appliances > 10,000
BTUH (3 kw) and ≤ 50,000 BTUH (15 kw);
12 inches (30 cm) for appliances >
50,000 BTUH (15 kw)
K=
Clearance to a mechanical air supply inlet
6 feet (1.83m)
3 feet (91 cm) above if within 10 feet
(3m) horizontally
L=
Clearance above a paved sidewalk or
paved driveway located on public
property
7 feet (2.13 m) and not located above
public walkways or other areas where
condensate or vapor can cause a
nuisance or hazard
7 feet (2.13 m) and not located above
public walkways or other areas where
condensate or vapor can cause a nuisance
or hazard
M=
Clearance under veranda, porch, deck, or
balcony
12 inches (30 cm) if veranda, porch,
deck, or balcony is fully open on a
minimum of two sides beneath the floor
12 inches (30 cm) where the area
beneath the veranda, porch, deck, or
balcony is open on not less than two
sides. The vent terminal is prohibited in
this location where only one side is open
Notes:
1.
The Canadian venting installations must be in accordance with local codes or in the absence of local codes with the current CSA B149.1
Natural Gas and Propane Installation Code.
2.
The US venting installations must be in accordance with local codes or in the absence of local codes with the current ANSI Z223.1/NFPA 54
National Fuel Gas Code.
* Clearance in accordance with local installation codes and the requirements of the gas supplier.
S9V2-VS-SVX001-1B-EN
43
Furnace General Installation
Venting Through The Roof
Support Horizontal pipe every 3’0” with the first support as close to
the furnace as possible. Induced draft blower, housing, and furnace
must not support the weight of the flue pipe.
Supports
34”
BAYAIR30AVENTA / BAYAIR30CNVENT
VENT
12 INCHES MIN. CLEARANCE MUST BE
MAINTAINED ABOVE HIGHEST
ANTICIPATED SNOW LEVEL.
MAXIMUM NOT TO EXCEED
24 INCHES ABOVE ROOF.
MAINTAIN 12 IN.
(18 IN. FOR CANADA)
MINIMUM CLEARANCE
ABOVE HIGHEST
ANTICIPATED SNOW
LEVEL. MAXIMUM OF
24 IN. ABOVE ROOF.
COMBUSTION
AIR
Note: All measurements are from centerline to centerline.
BAYAIR30AVENTA / BAYAIR30CNVENT
MAINTAIN 12 IN.
VENT
(18 IN. FOR CANADA)
MINIMUM CLEARANCE
REMOVE RIBS
ABOVE HIGHEST
FROM CAP
ANTICIPATED SNOW
LEVEL. MAXIMUM OF
COMBUSTION
24 IN. ABOVE ROOF
AIR
SEAL BETWEEN FLANGE, PIPE,
COUPLING AND METAL PANEL
WITH HI TEMP RTV SILICONE SEALANT
FLUE PIPE
COUPLING
ROOF FLASHING BOOT
(FIELD SUPPLIED)
SUPPORT
FLANGE
SUPPORT
(FIELD SUPPLIED)
ELBOW
(FIELD SUPPLIED)
VENT
COMBUSTION
AIR
CEILING
GALVANIZED FIRESTOP SHOULD
BE FABRICATED WITH 3-7/8" DIA.
HOLE FOR SUPPORT FLANGE
(12" x 12" PANEL OR 12" DIA MIN.)
CLEARANCE - 0" ACCEPTABLE FOR PVC VENT PIPE
1" ACCEPTABLE FOR TYPE 29-4C STAINLESS STEEL VENT PIPE
VENTING THROUGH CEILING
44
S9V2-VS-SVX001-1B-EN
Furnace General Installation
When penetrating roof with PVC vent pipe, a flexible flashing may be
used for a weather tight seal. Lubricate flexible seal on flashing before
PVC pipe is pushed through the seal. (Field Supplied)
Note: No vent cap is the preferred method for vertical vent
termination in extremely cold climates.
Note: In extreme climate conditions, insulate the exposed pipe above
the roof line with Armaflex type insulation.
PVC PLASTIC VENTING
THROUGH UNUSED CHIMNEY
Venting Through an UNUSED Chimney
Venting Routed Through a Masonry Chimney
STAINLESS
STEEL
VENT CAP
(OPTIONAL)
Important: Refer to Section 12.6.8 of NFPA 54 / ANSI 223.1 2012
when routing vent piping through a chimney.
Important: The single wall flue pipe joints must be sealed.
The 90° elbow connection to vertical pipe must be sealed
to prevent condensate leakage to base of masonry
chimney.
SEE CAUTION
6 IN. MIN.
FLUE PIPE
SUPPORT THE SINGLE
WALL FLUE PIPE AND
CENTER IT IN THE
CHIMNEY OPENING WITH
ANGLES AS SHOWN OR
ANOTHER EQUIVALENT
MANNER.
COUPLING TO SUPPORT
PIPE FROM ANGLES
OR OTHER SUITABLE
SUPPORT METHOD
COUPLING
AS REQUIRED
FLUE PIPE
NOTE:
HORIZONTAL VENTING
TO VERTICAL VENTING
Venting Through an UNUSED Chimney
Important: Refer to Section 12.6.8 of NFPA 54 / ANSI 223.1 2012
when routing vent piping through a chimney.
Important: The single wall flue pipe joints must be sealed.
The 90° elbow connection to vertical pipe must be sealed
to prevent condensate leakage to base of masonry
chimney.
VENT FITTING MATERIAL – STAINLESS STEEL
Gas and liquid tight single wall metal vent fitting, designed for
resistance to corrosive flue condensate such as Type 29-4C MUST be
used throughout.
These fittings and fitting accessories are to be field supplied.
DIRECTION OF STAINLESS STEEL FITTING
All stainless steel fitting must be installed with male end towards the
Furnace.
All horizontal stainless steel sections must be positioned with the
seam on top.
All long horizontal sections must be supported to prevent sagging.
All pipe joints must be fastened and sealed to prevent escape of
combustion products into the building.
TYPE 29-4C STAINLESS STEEL VENTING
THROUGH UNUSED CHIMNEY
STAINLESS
STEEL
VENT CAP
(OPTIONAL)
SEE CAUTION
6 IN. MIN.
SUPPORT THE SINGLE WALL
STAINLESS STEEL GAS
VENTING AND CENTER IT IN
THE CHIMNEY OPENING WITH
ANGLES AS SHOWN OR
ANOTHER EQUIVALENT
MANNER.
NOTE:
HORIZONTAL VENTING
TO VERTICAL VENTING
S9V2-VS-SVX001-1B-EN
45
Furnace General Installation
Downward Venting
Furnace may be in vertical or horizontal configuration.
Notes:
1.
Condensate trap for vent pipe must be a minimum of 6
inches in height.
2.
Condensate trap for vent and inlet pipe must be
connected into a condensate drain pump; an open or
vented drain; or it can be connected to the outlet hose of
the Furnace condensate trap. Outdoor draining of the
Furnace and coil condensate is permissible if allowed by
local codes.
3.
The condensate trap should be primed at initial start up
prior to heating season operation.
All horizontal pipes must be
supported at maximum of
3 foot intervals
Downward vent length
is limited to a maximum
of 15 equivalent feet.
Upflow or
Downflow
Furnace
Slope 1/4" per ft.
Slope 1/4" per ft.
6" Min.
Caution should be taken to prevent drains from freezing or causing slippery conditions that could lead to personal injury. Excessive draining of
condensate may cause saturated ground conditions that may result in damage to plants.
Air for Combustion and
Ventilation
Minimum Area in Square Feet for Unconfined Space Installations
Furnace Maximum BTUH Input
Rating
With 8 Ft. Ceiling,
Minimum Area in Square Feet
of Unconfined Space
40,000
60,000
80,000
100,000
120,000
250
375
500
625
750
Adequate flow of combustion and ventilating air must
not be obstructed from reaching the Furnace. Air
openings provided in the Furnace casing must be kept
free of obstructions which restrict the flow of air.
Airflow restrictions affect the efficiency and safe
operation of the Furnace. Keep this in mind should you
choose to remodel or change the area which contains
your Furnace. Furnaces must have a free flow of air for
proper performance.
Provisions for combustion and ventilation air shall be
made in accordance with "latest edition" of Section 9.3,
Air for Combustion and Ventilation, of the National
Fuel Gas Code, ANSI Z223.1 / NFPA 54, or Sections 8.2,
8.3 or 8.4 of CSA B149.1 Installation Codes, and
applicable provisions of the local building codes.
Special conditions created by mechanical exhausting
of air and fireplaces must be considered to avoid
unsatisfactory Furnace operation.
Furnace location may be in an u n c o n f i n e d space or a
c o n f i n e d space.
U n c o n f i n e d space are installations with 50 cu. ft. or
more per 1000 BTU/hr input from all equipment
installed. Unconfined spaces are defined in the table
and illustration for various furnace sizes. These spaces
may have adequate air by infiltration to provide air for
combustion, ventilation, and dilution of flue gases.
Buildings with tight construction (for example, weather
stripping, heavily insulated, caulked, vapor barrier,
etc.), may need additional air provided as described for
confined space.
UNCONFINED
NO
DOORS
50 CU. FT. OR MORE
PER 1000 BTU/HR INPUT
ALL EQUIP. INSTALLED
WATER
FURNACE HEATER
CLOTHES
DRYER
C o n f i n e d spaces are installations with less than 50 cu.
ft. of space per 1000 BTU/ hr input from all equipment
installed. Confined spaces are defined in the table and
illustration for various furnace sizes. Air for combustion
and ventilation requirements can be supplied from
inside the building.
1. The following types of installations will r e q u i r e use
of OUTDOOR AIR for combustion, due to chemical
exposures:
•
Commercial buildings
•
Buildings with indoor pools
•
Furnaces installed in commercial laundry rooms
•
Furnaces installed in hobby or craft rooms
•
Furnaces installed near chemical storage areas
Exposure to the following substances in the
combustion air supply will also require OUTDOOR
AIR for combustion:
•
46
Permanent wave solutions
S9V2-VS-SVX001-1B-EN
Furnace General Installation
•
Chlorinated waxes and cleaners
•
Chlorine based swimming pool chemicals
•
Water softening chemicals
•
Deicing salts or chemicals
•
Carbon Tetrachloride
•
Halogen type refrigerants
•
Cleaning solvents (such as perchloroethylene)
•
Printing inks, paint removers, varnish, etc.
•
Hydrochloric acid
•
Cements and glues
•
Antistatic fabric softeners for clothes dryers
•
Masonry acid washing material
CONFINED
SPACE
PERMANENT
OPENINGS
N o t e : Extended warranties are not available in
some instances. Extended warranty does not
cover repairs to equipment installed in
establishments with corrosive atmospheres,
including but not limited to, dry cleaners,
beauty shops, and printing facilities.
Minimum Free Area in Square Inches Each Opening (Furnace
Only) in a Confined Space
Furnace Max
BTUH.Input
Rtg.
Air From
Inside
40,000
60,000
80,000
100,000
120,000
140,000
100
100
100
100
120
140
CONFINED SPACE
AIR FROM INSIDE BUILDING
All air from outdoors The confined space shall be
provided with two permanent openings, one
commencing within 12 inches of the top and one
commencing within 12 inches of the bottom of the
enclosure.
The openings shall communicate directly, or by ducts,
with the outdoors or spaces (crawl or attic) that freely
communicate with the outdoors. Refer to the Minimum
Free Area in square inches for confined spaces table,
for minimum open areas required.
CONFINED SPACE
AIR FROM OUTDOORS
Air From Outside
Vertical Duct
(a)
Horizontal
Duct (b)
10
15
20
25
30
35
20
30
40
50
60
70
CONFINED
SPACE
OUTLET
OUTDOOR
AIR DUCTS
INLET
(a) 1 Square inch per 4000 BTU/hr Vertical Duct.
(b) 1 Square inch per 2000 BTU/hr Horizontal Duct.
CONFINED SPACE
AIR FROM VENTILATED ATTIC/CRAWL SPACE
CONFINED
ATTIC LOUVERS
TO OUTDOORS
FURNACE
LESS THAN 50 CU. FT.
PER 1000 BTU/HR INPUT
ALL EQUIP. INSTALLED
CONFINED
SPACE
ALTERNATE
INLET AIR
All air from inside the building The confined space shall
be provided with two permanent openings
communicating directly with an additional room(s) of
sufficient volume so that the combined volume of all
spaces meets the criteria for an unconfined space. The
total input of all gas utilization equipment installed in
the combined space shall be considered in making this
determination. Refer to the Minimum Free Area in
square inches for confined spaces table, for minimum
open areas required.
OUTLET
AIR
INLET
AIR DUCT
CONFINED SPACE
AIR FROM VENTILATED ATTIC
ATTIC LOUVERS
TO OUTDOORS
CONFINED
SPACE
OUTLET
AIR
INLET
AIR DUCT
S9V2-VS-SVX001-1B-EN
47
Furnace General Installation
Duct Connections
Air duct systems should be installed in accordance with standards for
air conditioning systems, National Fire Protection Association
Pamphlet No. 90. They should be sized in accordance with ACCA
Manual D or whichever is applicable. Check on controls to make
certain they are correct for the electrical supply.
Central furnaces, when used in connection with cooling units, shall be
installed in parallel or on the upstream side of the cooling units to
avoid condensation in the heating element, unless the furnace has
been specifically approved for downstream installation. With a parallel
flow arrangement, the dampers or other means used to control flow of
air shall be adequate to prevent chilled air from entering the furnace,
and if manually operated, must be equipped with means to prevent
operation of either unit unless the damper is in full heat or cool
position.
Flexible connections of nonflammable material may be used for return
air and discharge connections to reduce the transmission of vibration.
Though these units have been specifically designed for quiet, vibration
free operation, air ducts can act as sounding boards and could, if
poorly installed, amplify the slightest vibration to the annoyance level.
When the furnace is located in a utility room adjacent to the living
area, the system should be carefully designed with returns which
minimize noise transmission through the return air grille. Although
these winter air conditioners are designed with large blowers
operating at moderate speeds, any blower moving a high volume of
air will produce audible noise which could be objectionable when the
unit is located very close to a living area. It is often advisable to route
the return air ducts under the floor or through the attic. Such design
permits the installation of air return remote from the living area (i.e.
central hall).
When the furnace is installed so that the supply ducts carry air
circulated by the furnace to areas outside the space containing the
furnace, the return air shall also be handled by a duct(s) sealed to the
furnace and terminating outside the space containing the furnace.
For furnaces not equipped with a cooling coil, it is recommended that
the outlet duct be provided with a removable access panel. The
opening shall be accessible when the furnace is installed and shall be
of such a size that the heat exchanger can be viewed for possible
openings using light assistance or a probe can be inserted for
sampling the air stream. The removable cover must be sealed to
prevent air leaks.
Where there is no complete return duct system, the return
connection must be run full size from the Furnace to a location
outside the utility room, basement, attic, or crawl space.
Do Not install return air through the back of the Furnace cabinet.
Do Not install return air through the side of the furnace cabinet on
horizontal applications without following the guidelines in Figure 1, p.
57.
Carbon monoxide, fire or smoke can cause serious bodily injury,
death, and/or property damage.
A variety of potential sources of carbon monoxide can be found in a
building or dwelling such as gas-fired clothes dryers, gas cooking
stoves, water heaters, furnaces and fireplaces. The U.S. Consumer
Product Safety Commission recommends that users of gas-burning
appliances install carbon monoxide detectors as well as fire and
smoke detectors per the manufactures installation instructions to help
alert dwelling occupants of the presence of fire, smoke or unsafe
levels of carbon monoxide. These devices should be listed by
Underwriters Laboratories, Inc. Standards for Single and Multiple
Station Carbon Monoxide Alarms, UL 2034 or CSA International
Standard, Residential Carbon Monoxide Alarming Devices, CSA 6.19.
Note: The manufacturer of your Furnace DOES NOT test any
detectors and makes no representations regarding any brand
or type of detector.
Note: Seal per local codes
48
S9V2-VS-SVX001-1B-EN
Furnace General Installation
Table 17.
Supply Duct Connections
CAUTION
COIL REQUIREMENT!!
Note: The "Coil Requirement" caution is applicable to:
Upflow furnace with coil,
Furnace in horizontal left with coil and
Furnace in horizontal right with "A" coil
Failure to follow this Caution could result in
property damage or personal injury.
4GXC* and 4MXC* coils installed on upflow
furnaces in vertical, horizontal left, or horizontal
right orientations without a factory installed metal
drain pan shield must use a MAY*FERCOLKITAA kit.
Coils installed on upflow furnaces must have drain
pans that are suitable for 400° F (205° C) or have a
metal drain pan shield. Downflow furnaces do not
require a metal drain pan shield or the use of the
MAY*FERCOLKITAA kit.
Upflow Furnace with Coil
Upflow Furnace with Coil
Note: There are no longer guide holes located on the furnace flange.
Refer to Step 1.
Refer to Step 2., Step 3., Step 4.
Furnace in Horizontal Left with Coil
Furnace in Horizontal Left with Coil
Note: There are no longer guide holes located on the furnace flange.
Refer to Step 1.
S9V2-VS-SVX001-1B-EN
Refer to Step 6., Step 3., Step 4.
49
Furnace General Installation
Table 17.
Supply Duct Connections (continued)
Furnace in Horizontal Right with “A” Coil
Furnace in Horizontal Right with “A” Coil
Note: Flat or dedicated horizontal coils may require flanges to be bent
upward.
Refer to Step 7., Step 8., Step 9., Step 6.
Refer to Step 10., Step 4.
Downflow Furnace with Coil
Downflow Furnace with Coil
Note: 4GXC* or 4MXC* coils installed on a downflow furnace do not
require a metal drain pan shield or the use of the
MAY*FERCOLKITAA kit.
Refer to Step 7., Step 8., Step 9., Step 6.
Refer to Step 11., Step 4.
50
S9V2-VS-SVX001-1B-EN
Furnace General Installation
Table 17.
Supply Duct Connections (continued)
Horizontal Right and Downflow Furnace — no Coil
Important: A BAYBASE is required when installing the furnace on a combustible floor.
Refer to Step 1., Step 12., Step 4.
Installation Instructions
1. Bend furnace flanges up.
2. Set the coil on top of the furnace.
3. Screw through the coil cabinet into the furnace
flange. Guide holes are located on the coil.
4. Seal per local codes and requirements.
5. Insulate the first 6–12 inches of the supply duct.
6. Support the furnace and coil independently.
8. Starting at the back of the furnace, cut the side
flanges along perforations until past the end of the
heat shield to avoid interference when bending.
9. Bend furnace side flanges down.
10. Match the coil up flush to the back of the furnace.
11. Set the furnace on top of the coil so that it is flush
with the back of the furnace.
12. Attach ducting.
7. Cut the back flange along perforation.
S9V2-VS-SVX001-1B-EN
51
Furnace General Installation
Table 18.
Return Duct Connections
Return Ducting General Guidelines
•
Back returns are not allowed on any S-Series furnaces
•
Side returns are not allowed on downflow S-Series furnaces
•
Mounting flanges must be located on ducting
•
Shoot screws through the mount flanges into the furnace cabinet
•
Always seal per local codes and requirements
•
Furnace, coil, and ducting must be supported separately
•
An external overflow drain pan must be installed in all applications over a finished ceiling to prevent property damage
Upflow Furnace with Bottom Return in Closet with Remote
Filter
Upflow Furnace with Bottom Return in Closet with Filter Box
Filter
Refer to Step 1., Step 2., Step 3., Step 4.
Upflow Furnace with Bottom Return Mounted on a Ducted
Pedestal
Refer to Step 1., Step 5., Step 6., Step 4.
Upflow Furnace with Bottom Return Mounted on a Ducted
Pedestal with Filter Box
Filter
Refer to Step 1., Step 7., Step 8., Step 4.
Refer to Step 1., Step 9., Step 4.
52
S9V2-VS-SVX001-1B-EN
Furnace General Installation
Table 18.
Return Duct Connections (continued)
Upflow Furnace with Bottom and Side Returns Mounted on a
Ducted Pedestal with Side Return and Filter Box
Important: Make sure the condensate and thermostat wiring holes
are sealed on the cabinet side with the side return. The
plugs and grommets may need to be changed with those
on the opposite side of the cabinet.
17.5” Filter Cabinet with BAYLIFT Kit
Important: Make sure not to cut the cabinet in the “No Cut” area.
Note: Use Optional BAYLIFT kit to lift furnace. Follow kit instructions.
Filter
Note: The furnace bottom pedestal must be a minimum of 6” in
height.
No Cut Area
Cutouts
Flush with back
of furnace cabinet
Refer to Step 1., Step 10., Step 11., Step 12., Step 13., Step 14.,
Step 15., Step 4.
Upflow Furnace with Side Return
21” Filter Cabinet with BAYLIFT Kit
Important: Make sure the condensate and thermostat wiring holes
are sealed on the cabinet side with the side return. The
plugs and grommets may need to be changes with those
on the opposite side of the cabinet.
Important: Make sure not to cut the cabinet in the “No Cut” area.
Note: Return air on right side with the condensate on the left or return
air on left with the condensate on the right do not require a
transition.
Note: If using a filter box, use a transition, if possible, to attach the
filter box to the furnace cabinet.
Use four corner guides
to create cutout
No Cut Area
Cutouts
Flush with back
of furnace cabinet
No Cut Area
Refer to Step 16., Step 17., Step 18., Step 19.
S9V2-VS-SVX001-1B-EN
53
Furnace General Installation
Table 18.
Return Duct Connections (continued)
Upflow Furnace with Two Side Returns
Downflow Furnace with Top Return
Important: One of the sides must have a transition to allow the
condensate and thermostat wiring to exit the cabinet.
Important: If a transition is not a viable option, a hole may be drilled
in the bottom of the cabinet to allow the condensate to
exit. Also, a hole will need to be drilled in the side of the
cabinet for the thermostat wiring to exit.
Important: Make sure not to cut the cabinet in the “No Cut” area.
Note: If using one transition, the condensate and thermostat wiring
will exit on the transition side.
Note: If using a filter boxes, use transitions, if possible, to attach the
filter boxes to the furnace cabinet. If transitions are not used,
condensate may exit through the bottom of the furnace.
Use four corner guides
to create cutout
No Cut Area
Refer to Step 20., Step 21., Step 3., Step 4.
Refer to Step 16., Step 17., Step 18., Step 19.
Downflow Furnace with Top Return and Plenum
Downflow Furnace with Top Return and Plenum with Filter Box
Filter
Refer to Step 20., Step 22., Step 3., Step 4.
54
Refer to Step 20., Step 23., Step 24., Step 4.
S9V2-VS-SVX001-1B-EN
Furnace General Installation
Installation Instructions
14. Attach ducting to the filter box.
1. Remove the bottom plate.
2. Set the furnace on the base inside closet.
15. The ducted pedestal will use ducted air from a
remote location.
3. Install remote filter.
16. Using guides, remove the cutout for the side return.
4. Seal per local codes and requirements.
17. Create ducting and set the furnace in place. Use
screws to attach ducting to the furnace cabinet.
5. Set the furnace on the filter box inside closet.
6. Must have grill present for air.
18. Seal bottom panel per local codes and
requirements.
7. Set the furnace on the ducted pedestal. The ducted
pedestal will use ducted air from a remote location.
19. Seal all other panels per local codes and
requirements.
8. Install filter at a remote location.
20. Remove the top plate.
9. Set the furnace on the filter box. The ducted
pedestal will use ducted air from a remote location.
21. Attach the ducting to the top of the furnace.
10. Create ducting and set the furnace in place.
11. Match the filter cabinet flush to the back and
bottom sides of the furnace cabinet and secure in
place with screws.
22. Attach the plenum ducting to the top of the furnace.
23. Attach the filter box to the top of the furnace.
24. Attach ducting.
12. Mark the two areas to be cut out for the return air.
13. Cut out the two sections of the cabinet and BAYLIFT
kit to be removed.
S9V2-VS-SVX001-1B-EN
55
Furnace General Installation
Return Air Filters
Return Air Filters
TYPICAL UPFLOW RETURN AIR FILTER INSTALLATIONS
Filters are not factory supplied for upflow furnaces. Filter size needed
will be dependent on type of filter and CFM requirement. Filters must
be installed externally to the unit.
Important: It is recommended to transition return ducting to the
same size as the opening. It is acceptable for return duct
or filter frame to extend forward of the opening but
plastic plugs MUST be installed in any opening that the
duct or filter frame may cover.
Upflow Return Air Filters
Furnace Width
Filter
Qty and Size
17–1/2”
1 — 16” x 25” x 1”
21”
1 — 20” x 25” x 1”
24–1/2”
1 — 24” x 25” x 1”
Note: For upflow furnace models in any configuration, where the
airflow requirement exceeds 1600 CFM - Furnaces will
require return air openings and filters on: (1) both sides, or
(2) one side and the bottom, or (3) just on the bottom.
Preparation for Upflow Bottom and Side Return Air Filter
Installations
All return air duct systems should provide for installation of return air
filters.
1.
Determine the appropriate position to set the furnace in order to
connect to existing supply and return ductwork.
2.
For upflow side return installations, remove the insulation around
the opening in the blower compartment
3.
The side panels of the upflow furnace include locating notches
that are used as guides for cutting an opening for return air, refer
to the figure and the upflow furnace outline drawing for duct
connection dimensions for various furnaces.
4.
If a 3/4" flange is to be used for attaching the air inlet duct, add to
cut where indicated by dotted lines. Cut corners diagonally and
bend outward to form flange.
5.
If flanges are not required, and a filter frame is installed, cut
between locating notches as in illustration.
6.
The bottom panel of the upflow furnace must be removed for
bottom return air.
UPFLOW FURNACES ONLY
*
LOCATING
NOTCHES
PROVIDED
FOR SIDE
RETURN
CUTOUT
*
*
*
FRONT
OF FURNACE
* SEE OUTLINE DRAWING
56
S9V2-VS-SVX001-1B-EN
Furnace General Installation
1.
Upflow Furnaces:
Figure 1.
Horizontal upflow furnace with side return
When the upflow furnace is installed in the horizontal right or left
application and a return duct is attached to the top side, do not
install a filter in the return duct directly above the furnace. Install
the filter in a remote location.
When the upflow furnace is installed in the horizontal right or left
application and a close coupled (less than 36") return duct is
attached to the bottom side of the furnace as shown above,
securely attach a 1/2" mesh metal hardware cloth protective
screen to the inside bottom of the filter grill to prevent personal
injury from contacting moving parts when reaching into
the return opening to replace the filter.
FILTER
Close coupled (less than 36") return (filter directly beneath
bottom side return) is not recommended due to noise
considerations.
2.
Connect the duct work to the furnace. See Outline Drawing for
supply and return duct size and location.
Flexible duct connectors are recommended to connect both
supply and return air ducts to the furnace.
If only the front of the furnace is accessible, it is recommended
that both supply and return air plenums are removable.
3.
When replacing a furnace, old duct work should be cleaned out.
Thin cloths should be placed over the registers and the furnace
fan should be run for 10 minutes. Don’t forget to remove the
cloths before you start the furnace.
4.
The horizontal installation of the upflow furnace requires
an external filter section. Filter kits are available for
horizontal applications.
LESS THAN 36”
CLOSE COUPLED (LESS THAN 36”)
RETURN (FILTER DIRECTLY BENEATH BOTTOM
SIDE RETURN) NOT RECOMMENDED DUE TO
NOISE CONSIDERATIONS. IF USED, SECURELY
ATTACH 1/2” MESH METAL HARDWARE CLOTH
PROTECTIVE SCREEN TO THE INSIDE BOTTOM
OF THE FILTER GRILL.
RETURN AIR FILTERS FOR UPFLOW FURNACE IN HORIZONTAL
CONFIGURATION
When the Upflow Furnace is installed in the horizontal configuration,
the return air filters must be installed exterior to the furnace cabinet.
Remote filter grilles may be used for homeowner convenience or the
filters may be installed in the duct work upstream of the furnace.
TYPICAL DOWNFLOW FURNACE RETURN AIR FILTER
INSTALLATIONS
Filters are not factory supplied for downflow furnaces. Filter size
needed will be dependent on type of filter and CFM requirement.
Filters must be installed externally to the unit.
S9V2-VS-SVX001-1B-EN
Downflow Return Air Filters
Furnace Width
Filter
Qty and Size
17–1/2”
2 — 14” x 20” x 1”
21”
2 — 16” x 20” x 1”
24–1/2”
2 — 16” x 20” x 1”
57
Furnace General Installation
Electrical Connections
Make wiring connections to the unit as indicated on enclosed wiring diagram. As with all gas appliances using electrical power, this furnace shall
be connected into a permanently live electric circuit. It is recommended that furnace be provided with a separate "circuit protection device"
electric circuit. The furnace must be electrically grounded in accordance with local codes or in the absence of local codes with the National
Electrical Code, ANSI/NFPA 70 or CSA C22.1 Electrical Code, if an external electrical source is utilized. The integrated furnace control is
polarity sensitive. The hot leg of the 120V power supply must be connected to the black power lead as indicated on the wiring diagram.
Refer to the Wiring Diagram section in this document and unit wiring diagram attached to furnace.
Field Wiring
Two Stage
Thermostat
Furnace
BK
BK
W2
W2
W1
W1
R
R
G
G
B/C
B/C
FIELD WIRING DIAGRAM FOR
TWO STAGE HEATING THERMOSTAT, TWO STAGE COOLING
Outdoor Unit
(No Transformer)
B/C
Y2
NOTES:
1) For PWM (BK) enabled thermostats, cut the BK jumper
on the IFC and connect wiring.
2) The factory Y1-O jumper must remain in place for proper
LED read out in cooling mode.
3) Y1 and Y2 wiring from the thermostat must connect to
the IFC for proper airflow and LED readout.
4) Single compressor and two compressor airflow is automatically set with the IFC Menu optionsin ODU section.
2-1=2 stage / 1 compressor (1st stage airflow = 80%)
2-2=2 stage / 2 compressors (1st stage airflow = 50%)
Furnace IFC
Y2
Y2
Y1
Y1
O
O
Two Stage
Thermostat
Furnace
BK
BK
Y1
INTER-COMPONENT WIRING
SEE
NOTE 2
24 V FIELD WIRING
24 V FACTORY WIRING
FIELD WIRING DIAGRAM FOR
TWO STAGE HEATING THERMOSTAT, TWO STAGE HEAT PUMP
Outdoor Unit
(No Transformer)
W2
W2
W1
W1
X2
R
R
R
G
G
B/C
B/C
Y2
Y2
Y1
Y1
B/C
Y2
O
NOTES:
1) For PWM (BK) enabled thermostats, cut the BK jumper
on the IFC and connect wiring.
2) Remove the factory Y1-O jumper for HP systems
for proper LED read out.
3) Y1 and Y2 wiring from the thermostat must connect to Y1 and
Y2 of the IFC for proper airflow and LED readout.
4) Single compressor and two compressor airflow is automatically
set with the IFC Menu options in ODU section.
2-1=2 stage / 1 compressor (1st stage airflow = 80%)
2-2=2 stage / 2 compressors (1st stage airflow = 50%)
Furnace IFC
Y1
SEE
NOTE 2
O
O
INTER-COMPONENT WIRING
24 V FIELD WIRING
24 V FACTORY WIRING
58
BK JUMPER
SEE NOTE 1
R-BK
JUMPER
SEE NOTE 1
S9V2-VS-SVX001-1B-EN
Furnace General Installation
Single Stage
Thermostat
Furnace
BK
BK
FIELD WIRING DIAGRAM FOR
SINGLE STAGE HEATING THERMOSTAT, SINGLE STAGE COOLING
W2
SEE
NOTE 4
W1
W1
R
R
Outdoor Unit
(No Transformer)
G
G
B/C
B/C
B/C
Y2
Y1
Y1
Y1
O
O
NOTES:
1) For PWM (BK) enabled thermostats, cut the BK jumper
on the IFC and connect wiring.
2) The factory Y1-O jumper must remain in place for proper
LED read out in cooling mode.
3) Y1 wiring from the thermostat must connect to Y1 of
the IFC for proper airflow and LED readout.
4) Place field supplied jumper between W1 and W2 on the
IFC. Interstage delay is factory set for 10 minutes but is field
adjustable with the Menu option in the ISD section.
5) Single stage airflow is set with the IFC Menu options
in ODU section. Select 1-1.
Furnace IFC
INTER-COMPONENT WIRING
SEE
NOTE 2
24 V FIELD WIRING
24 V FACTORY WIRING
BK JUMPER
SEE NOTE 1
Single Stage
Thermostat
Furnace
BK
BK
W2
FIELD WIRING DIAGRAM FOR
SINGLE STAGE HEATING THERMOSTAT, SINGLE STAGE HEAT PUMP
Outdoor Unit
SEE
NOTE 4 (No Transformer)
W1
W1
X2
R
R
R
G
G
B/C
B/C
B/C
NOTES:
1) For PWM (BK) enabled thermostats, cut the BK jumper
on the IFC and connect wiring.
2) Remove the factory Y1-O jumper for HP systems
for proper LED read out.
3) Y1 wiring from the thermostat must connect to Y1 of
the IFC for proper airflow and LED readout.
4) Place field supplied jumper between W1 and W2 on the
IFC. Interstage delay is factory set for 10 minutes but is field
adjustable with the Menu option in the ISD section.
5) Single stage airflow is set with the IFC Menu options
in ODU section. Select 1-1.
Furnace IFC
Y2
Y1
Y1
Y1
SEE
NOTE 2
O
O
O
INTER-COMPONENT WIRING
24 V FIELD WIRING
24 V FACTORY WIRING
S9V2-VS-SVX001-1B-EN
BK JUMPER
SEE NOTE 1
59
Furnace General Installation
COMMUNICATING CONTROLS WITH NON-COMMUNICATING S9V2 FURNACE
AND COMMUNICATING VS COOLING/HP
Communicating
Control
Relay Panel
D
R
B
D
Outdoor Unit
Indoor Unit
R
D
B
R
R
B
B/C
O
O
SOV
Y1
STG1
Y2
STG2
Y2
W1
STG1
W1
W2
STG2
W2
W3
STG3
G
G
FAN
BK
BK
PWM
HUM
HUM
HUM
AUX1
AUX2
60
24V
ONLY
AUX2
24V
ONLY
AUX1
24V
ONLY
Y1
HUM
NOTES:
1. Cut the BK jumper at the indoor unit - After cutting the jumper, power must
be off or cycled on-off-on for the IFC to work properly.
2. Requires an 850 control with software version 3.0+ or 1050. Not a valid
combination with 950 control.
CPC = CFM/Ton cooling. Must be set to 400.
CPH = CFM/Ton heating. Must be set to 400.
ODT = Must be set to match the OD tonnage.
Furnace LED’s will read “CoF“ continous fan during cooling and heat
pump operation.
24 V Field Wiring
AUX1
AUX1
AUX2
AUX2
S9V2-VS-SVX001-1B-EN
Condensate Drain Instructions
The following sections give general instructions for the
installation of the gas furnace condensate drains.
Repositioning of the condensate trap is covered in the
exhaust air options section.
Cutouts with plugs and grommets are provided on the
left and right hand side of the furnace cabinets for drain
connections IN VERTICAL APPLICATIONS. The
standard arrangement is for the drain connection on
the left side. The tubing may have to be trimmed in this
application to avoid kinking.
The u p f l o w ( v e r t i c a l a p p l i c a t i o n ) also has provisions
for right side drain connections. Exchange the
grommet and plugs from the left and right side. Trim
all excess tubing to avoid kinking.
It is always recommended that an auxiliary drain pan
be installed under a horizontally installed evaporator or
90% Gas Furnace. Connect the auxiliary drain line to a
separate drain line (no trap is needed in this line).
Horizontal applications require repositioning the
condensate canister trap. Additionally the drain
tubing connected to the inducer housing may need
to be repositioned for removing the plug and
reconnecting the tubing to the lower connection on
the inducer housing.
Connections must be made to an O P E N / V E N T E D
DRAIN.
N o t e : All condensate drain piping supplies included
with the furnace are intended for internal piping
only and should not be applied external to the
furnace. All external piping must use 1/2"
minimum size PVC pipe and fittings throughout
for drain connections (fittings, pipe and PVC
solvent cement not provided with furnace, must
be field supplied). A 3/4" coupling is supplied to
connect to systems that are using 3/4" piping
with an air conditioner coil.
N o t e : A corrosion resistant condensate pump must be
used if a pump is required for a specific drain
system.
CAUTION
Water Damage/Property Damage!
It is recommended that a drain pan be installed
under the furnace to prevent property damage or
personal injury from leaking condensate.
I m p o r t a n t : The condensate drain should be installed
with provisions to prevent winter freeze-up
of the condensate drain line. Frozen
condensate will block drains, resulting in
furnace shutdown. If the drain line cannot
be installed in a conditioned space and/ or
its surrounding ambient temperature is
expected to fall below freezing, then heat
tape should be applied as required to
prevent freezing (per manufacturer’s
instructions). The heat tape should be rated
at 5 or 6 watts per foot at 120 volts. Selfregulating (preferred) or thermostatically
controlled heat tape is required.
Typical sources of UL listed heat tapes are W.W.
Granger, Inc. (Wintergard PlusTM Series), McMaster
Carr Supply Co. (3554 Series), or your equipment
supplier.
The condensate drain may be cleaned or inspected by
removal of the drain tube at the header.
Evaporator and Furnace condensate drain piping may
be manifolded together. A primary drain vent stack
must be installed and terminated below the outlet of
the secondary heat exchanger drain connection to
prevent water from damaging Furnace controls if the
primary drain outlet plugs up.
Where the Furnace is installed above a finished
ceiling, the primary drain vent stack must be
installed such that overflow from the vent stack
opening will flow into an auxiliary drain pan in
order to prevent water damage to the finished
ceiling below.
Vertical Applications
Upflow furnace
1.
Remove the plug from the side panel where the condensate will
exit.
2.
Install the condensate grommet into the side panel.
3.
Install the connection tubing from the trap to the side of the unit
and trim all excess tubing to avoid kinks.
S9V2-VS-SVX001-1B-EN
Note: For easiest installation, remove the spring clip from the end of
the condensate line and feed through the grommet.
Important: Condensate grommet must be installed for proper
operation.
61
Condensate Drain Instructions
COIL PRIMARY
DRAIN
COIL PRIMARY
DRAIN
CONDENSATE
GROMMET
CONDENSATE
GROMMET
RIGHT SIDE
DRAIN
LEFT SIDE
DRAIN
COIL PRIMARY
DRAIN
LEFT SIDE
DRAIN
COIL PRIMARY
DRAIN
IF THE FURNACE IS
INSTALLED OVER A FINISHED
CEILING, OVERFLOW FROM
THE PRIMARY DRAIN VENT
STACK MUST FLOW INTO AN
AUXILIARY DRAIN PAN TO
PREVENT DAMAGE TO THE
FINISHED CEILING BELOW
CONDENSATE
GROMMET
PRIMARY DRAIN VENT
STACK MUST TERMINATE
BELOW THE BOTTOM OF THE
CONDENSATE TRAP
RIGHT SIDE
DRAIN
IF THE FURNACE IS
INSTALLED OVER A FINISHED
CEILING, OVERFLOW FROM
THE PRIMARY DRAIN VENT
STACK MUST FLOW INTO AN
AUXILIARY DRAIN PAN TO
PREVENT DAMAGE TO THE
FINISHED CEILING BELOW
CONDENSATE
GROMMET
PRIMARY DRAIN VENT
STACK MUST TERMINATE
BELOW THE BOTTOM OF THE
CONDENSATE TRAP
OR
CONDENSATE PIPED
TO OPEN VENTED DRAIN
CONDENSATE PIPES MUST
NOT BE BELOW WATER SURFACE
CONDENSATE PIPED TO OPEN
VENTED DRAIN OR CONDENSATE PUMP
CONDENSATE PUMP
62
S9V2-VS-SVX001-1B-EN
Condensate Drain Instructions
Downflow furnace - Cut the 90 degree section of the condensate
tubing off and connect the tubing to the condensate trap. Install the
condensate grommet into the bottom panel. Cut to length as needed.
LEFT SIDE DRAIN WITH
EVAPORATOR AND CONDENSATE
DRAIN PIPING MANIFOLDED
TOGETHER.
COIL PRIMARY
DRAIN
CONDENSATE
GROMMET
IF THE FURNACE IS
INSTALLED OVER A FINISHED
CEILING, OVERFLOW FROM
THE PRIMARY DRAIN VENT
STACK MUST FLOW INTO AN
AUXILIARY DRAIN PAN TO
PREVENT DAMAGE TO THE
FINISHED CEILING BELOW
PRIMARY DRAIN VENT
STACK MUST TERMINATE
BELOW THE BOTTOM OF THE
CONDENSATE TRAP
DOWNFLOW FURNACES
WITH BOTTOM DRAIN
IF THE FURNACE IS
INSTALLED OVER A FINISHED
CEILING, OVERFLOW FROM
THE PRIMARY DRAIN VENT
STACK MUST FLOW INTO AN
AUXILIARY DRAIN PAN TO
PREVENT DAMAGE TO THE
FINISHED CEILING BELOW
CONDENSATE
GROMMET
PRIMARY DRAIN VENT
STACK MUST TERMINATE
BELOW THE BOTTOM OF THE
CONDENSATE TRAP
OR
CONDENSATE PIPED
TO OPEN VENTED DRAIN
CONDENSATE PIPE MUST
NOT BE BELOW WATER SURFACE
COIL PRIMARY
DRAIN
CONDENSATE PUMP
CONDENSATE PIPED
TO OPEN VENTED DRAIN
Downflow furnace with Left Side Condensate
1.
Remove left hand condensate plug.
2.
Install into bottom cross member.
Left Side
Gas Entry
Left Side
Condensate
Plug the bottom hole with plug provided in document pack.
S9V2-VS-SVX001-1B-EN
63
Condensate Drain Instructions
Attaching the condensate drain line.
1.
Locate the condensate grommet and the condensate drain line
assembly in the doc pack.
2.
Insert the condensate grommet in the 1–5/8” hole in the side of
the cabinet.
3.
Remove the fitting at the end of the drain line assembly and insert
it through the cabinet from the inside out. Attach the 90 degree
section of the hose to the condensate drain trap.
4.
Cut off the excess tube and reinstall the end fitting to the drain
hose.
DOWNFLOW FURNACES
LEFT SIDE DRAIN
BOTTOM HOLE MUST BE PLUGGED.
IF THE FURNACE IS
INSTALLED OVER A FINISHED
CEILING, OVERFLOW FROM
THE PRIMARY DRAIN VENT
STACK MUST FLOW INTO AN
AUXILIARY DRAIN PAN TO
PREVENT DAMAGE TO THE
FINISHED CEILING BELOW
CONDENSATE
GROMMET
Downflow furnace with Right Side Condensate - Drill an 11/16
inch diameter hole in the right side of the case at the dimensions
shown.
11/16” Φ
1.00
4.60
Plug the bottom hole with plug provided in document pack.
Attaching the condensate drain line.
1.
Locate the condensate drain line assembly in the doc pack.
Important: It is best to cut the condensate drain hose assembly
longer than 4 inches and then fit in place. It can then be
trimmed to needed length. The 4 inch measurement is an
approximation.
2.
Cut the condensate drain line assembly as shown.
3.
Use a field supplied hose clamp to secure the condensate drain
line to the condensate trap.
4.
Insert a field supplied piece of 1/2” CPVC pipe though the 11/16”
hole drilled through the cabinet and insert into drain line hose.
Secure with the spring clip.
Note: Seal around the condensate drain tubing where it exits the
cabinet.
Cut hose
Approx.
4”
DOWNFLOW FURNACES
RIGHT SIDE DRAIN
11/16” DIAMETER HOLE MUST
BE CUT IN RIGHT SIDE OF CASE.
BOTTOM HOLE MUST BE PLUGGED.
CUT FACTORY SUPPLIED
CONDENSATE ASSEMBLY HOSE
AND ATTACH TO FIELD SUPPLIED
CPVC TUBE. SECURE WITH SPRING
CLIP AND FIELD SUPPLIED HOSE
CLAMP.
IF THE FURNACE IS
INSTALLED OVER A FINISHED
CEILING, OVERFLOW FROM
THE PRIMARY DRAIN VENT
STACK MUST FLOW INTO AN
AUXILIARY DRAIN PAN TO
PREVENT DAMAGE TO THE
FINISHED CEILING BELOW
64
S9V2-VS-SVX001-1B-EN
Condensate Drain Instructions
Horizontal Applications
HORIZONTAL APPLICATIONS
Upflow models in horizontal - It is always recommended that the
auxiliary drain pan be installed under a horizontally installed
evaporator and/or 90% gas furnace. Connect the auxiliary drain pan
to a separate drain line (no trap is needed in this line).
Connections must be made to an OPEN/VENTED DRAIN. Outdoor
draining of the furnace and coil condensate is permissible if allowed by
local codes. Caution should be taken to prevent drains from freezing
or causing slippery conditions that could lead to personal injury.
Excessive draining of condensate may cause saturated ground
conditions that may result in damage to plants.
Note: Use 1/2" or larger PVC or CPVC pipe and fittings as required for
drain connections (fittings, pipe and solvent cement not
provided).
Note: A corrosion resistant condensate pump must be used if a pump
is required for a specific drain system.
Important: The condensate drain should be installed with provisions
to prevent winter freeze-up of the condensate drain line.
Frozen condensate will block drains, resulting in furnace
shutdown. If the drain line cannot be installed in a
conditioned space, then UL listed heat tape should be
applied as required to prevent freezing (per
manufacturer’s instructions). The heat tape should be
rated at 5 or 6 watts per foot at 120 volts. Self-regulating
(preferred) or thermostatically controlled heat tape is
required.
FURNACE MUST BE SUPPORTED AT ALL FOUR
CORNERS. BAYHANG - OPTIONAL HORIZONTAL
HANGING BRACKET KIT
TO APPROVED
OPEN / VENTED DRAIN
Note: The overflow stand pipe termination must be even with or slightly below
the bottom of the condensate trap.
Note: Water from the overflow pipe must drain into the emergency drain pan.
To prevent AC condensate from backing up into the furnaces, follow
these instructions for condensate drainage.
Note: 1. The overflow stand pipe termination must be even with or
slightly below than the bottom of the condensate trap.
Note: 2. Water from the overflow pipe must drain into the emergency
drain pan.
Note: 3. It is recommended to use the secondary drain. The
secondary drain pipe must terminate over the emergency drain
pan.
12
3
Note: 4. Emergency drain pan.
4
Horizontal Right
3
12
4
Horizontal Left
S9V2-VS-SVX001-1B-EN
65
General Start-up and Adjustment
The following sections give instructions for the general start-up and adjustment of the gas furnaces.
Preliminary Inspections
With gas and electrical power "OFF", ensure:
1.
Duct connections are properly sealed.
2.
Filters are in place.
3.
Venting is properly assembled.
4.
Blower vestibule panel is in place and all screws in place.
Turn knob on main gas valve within the unit to the "OFF" position.
Turn the external gas valve to "ON". Purge the air from the gas lines.
After purging, check all gas connections for leaks with a soapy
solution.
— DO NOT CHECK WITH AN OPEN FLAME. Allow 5 minutes for any
gas that might have escaped to dissipate. Turn the gas valve in the
unit to the "ON" position.
Propane Gas being heavier than air may require forced ventilation.
Turn the toggle switch on the Gas Valve in the unit to the “ON”
position.
Lighting Instructions
Lighting instructions appear on each unit. Each installation must be
checked out at the time of initial start up to ensure proper operation of
all components. Check out should include putting the unit through one
complete cycle as outlined below.
Turn on the main electrical supply and set the comfort control above
the indicated temperature. The igniter will automatically heat, then
the gas valve is energized to permit the flow of gas to the burners.
After ignition and flame is established, the flame control module
monitors the flame and supplies power to the gas valve until the
comfort control is satisfied.
WARNING
FIRE OR EXPLOSION HAZARD!
Failure to follow this Warning could result in
property damage, severe personal injury, or death.
Do NOT attempt to manually light the furnace.
To shut off
For complete shutdown: Turn the toggle or control switch located on
the main gas valve inside the unit to the "OFF" position and the
external main gas shutoff valve to the "OFF" position. Disconnect the
electrical supply to the unit.
Whenever your house is to be vacant, arrange to have someone
inspect your house for proper temperature. This is very important
during freezing weather. If for any reason your furnace should fail to
operate damage could result, such as frozen water pipes.
CAUTION
FREEZE CAUTION!
Failure to follow this Caution could result in
property damage or personal injury.
If complete furnace shutdown is done during the
cold weather months, provisions m ust be taken to
prevent freeze-up of all water pipes and water
receptacles.
Control and Safety Switch
Adjustment
LIMIT SWITCH CHECK OUT
The limit switch is a safety device designed to close the gas valve
should the furnace become overheated. Since proper operation of this
switch is important to the safety of the unit, it must be checked out
on initial start up by the installer.
66
To check for proper operation of the limit switches, set the thermostat
to a temperature higher than the indicated temperature to bring on
the gas valve. Restrict the airflow by blocking the return air to the
blower. When the furnace reaches the maximum outlet temperature
as shown on the rating plate, the burners must shut off. If they do not
shut off after a reasonable time and overheating is evident, a faulty
limit switch is probable and the limit switch must be replaced. After
checking the operation of the limit control, be sure to remove the
paper or cardboard from the return air inlet, or reconnect the blower.
S9V2-VS-SVX001-1B-EN
Furnace Combustion Air Exhaust Options
Important: All plugs must be in place for sealed combustion.
Note: Default is left side for electric and natural gas connections.
Default for the combustion air inlet and exhaust is top of the
furnace.
Important: If the locations are changed from the defaults, the
default holes not being used must be plugged.
Note: If the electrical and natural gas connections are moved to the
right side, remove the plugs and move them to the left side.
The grommets will move from the left side to the right side.
Note: The grommets are different for the natural gas and condensate
connections.
The following sections give instructions for the
different furnace orientations and the options for
venting the inlet and exhaust combustion air.
Table 19.
I m p o r t a n t : When looking at the different orientations,
the direction of the combustion air exhaust
in the illustration’s description is after the
furnace has been rotated, if needed.
Combustion Air Venting Options
Refer to the illustrations below to find the approved venting options for upflow and horizontal left furnace models.
Important: The combustion air exhaust must be vented to the outdoors.
Note: The combustion air inlet does not have to be on the same side as the combustion air exhaust.
Note: Right side combustion air entry is allowed in upflow applications.
Upflow Orientation or Installation
Combustion air exhaust vented out top.
Combustion air exhaust vented through left side.
Horizontal Left Orientation or Installation
Combustion air exhaust vented out top.
Combustion air exhaust vented through left side.
S9V2-VS-SVX001-1B-EN
67
Furnace Combustion Air Exhaust Options
Table 20.
Combustion Air Venting Options Continued
Refer to the illustrations below to find the approved venting options for horizontal right furnace models.
Important: The combustion air exhaust must be vented to the outdoors.
Note: The combustion air inlet does not have to be on the same side as the combustion air exhaust.
Horizontal Right Orientation or Installation
Combustion air exhaust vented through left side.
Combustion air exhaust vented out top.
Note: Requires a hole to be drilled in the case.
Refer to the illustrations below to find the approved venting options for downflow furnace models.
Important: The combustion air exhaust must be vented to the outdoors.
Note: The combustion air inlet does not have to be on the same side as the combustion air exhaust.
Note: Right side combustion air entry is allowed.
Downflow Orientation or Installation
Combustion air exhaust vented out top.
Combustion air exhaust vented through left side.
68
S9V2-VS-SVX001-1B-EN
Furnace Combustion Air Exhaust Options
Upflow Furnace in Upflow
Position - Top Vented
Combustion Air
No changes need to be made to the inducer when
installing the upflow furnace with the combustion air
vented through the top.
I m p o r t a n t : Trim the condensate pressure switch
tubing to length to ensure there is no sag or
trap created.
N o t e : The vent outlet adapter is used for strain relief
against the weight of the venting. The clamp
should be tightened after the internal connection
is made.
8. Install the combustion air inlet PVC pipe.
N o t e : If required, transition to larger venting within 2'
of the cabinet. CPL00938 – 2" x 3" offset coupling
may be used and is factory supplied with 120
KBTUH furnaces. Canadian applications may use
BAYREDUCE to meet ULC-S636 requirements.
1. Attach the vent outlet gasket to the vent outlet.
2. Install vent outlet to top of cabinet using 2 screws
supplied in the doc pack.
3. Install vent inlet gasket and vent inlet using 4
screws supplied in the doc pack.
Upflow Furnace in Upflow
Position - Left Side Vented
Combustion Air
Changes need to be made to the inducer orientation
when installing the upflow furnace with the
combustion air vented through the side. Additional
changes are needed for hose routing and PS2 rotation.
The figure to the top left in next page shows the
furnace as it is sent from the factory.
Use the following steps to modify the furnace for
upflow with side venting of combustion air.
I m p o r t a n t : Right side vent outlet is not allowed
because condensate will not drain.
4. Slide PVC pipe through vent outlet adaptor and
insert into inducer outlet.
5. Twist to insure PVC is fully inserted.
6. Tighten the clamp on the end of the 45 degree
elbow.
7. Tighten the clamp on the outlet vent adapter.
S9V2-VS-SVX001-1B-EN
69
Furnace Combustion Air Exhaust Options
6. Remove two 3” plugs on left side of cabinet. To be
used for combustion air and vent exhaust.
7. Install the two 3” plugs into the two 3” default
openings on the top of the cabinet.
8. Loosen the clamp holding the 45° elbow. Remove
the elbow and discard.
Before proceeding, lay unit on its back to make
conversion easier.
1. Disconnect all drain tubes from condensate trap.
N o t e : When removing condensate hoses from the
condensate trap, hold the trap with your hand to
prevent the trap from breaking. Removing the
trap before the hoses is also an option.
2. Remove drain tubing from bottom of inducer
housing.
3. Remove rain gutter tubing from inducer outlet.
4. Remove tubing from condensate pressure switch.
5. Remove tubing from PS2 to cold header.
9. Remove the three inducer mounting screws.
10. Rotate inducer counter-clockwise so that the
inducer outlet aligns with the exhaust vent outlet.
11. Insert and re-tighten screws to 30 in.-lbs. Do not
overtighten.
5
4
2
70
3
S9V2-VS-SVX001-1B-EN
Furnace Combustion Air Exhaust Options
12. Remove the pressure switch bracket assembly.
13. Remove the screw that holds PS2, rotate 90 degrees
clockwise, and reattach.
14. Reattach the pressure switch bracket assembly.
19. Slide PVC through vent outlet adaptor and insert
into inducer outlet.
N o t e : Illustration below shows the PS2 pressure switch
in the final rotated position.
20. Twist to insure PVC is fully inserted.
21. Tighten the two clamps.
22. Install the combustion air inlet pipe.
N o t e : The vent outlet adapter is used for strain relief
against the weight of the venting. The clamp
should be tightened after the internal connection
is made.
N o t e : If required, transition to larger venting within 2'
of the cabinet. An 2" x 3" offset coupling is
required if the transition is made in a horizontal
plane. Use coupling CPL00938 (Canadian
applications may use BAYREDUCE to meet ULCS636 requirements.) See Horizontal Venting
section for proper orientation of 2” x 3” offset
coupling.
15. Attach the vent outlet gasket to the vent outlet.
16. Install vent outlet to top of cabinet using 2 screws
supplied in the dock pack.
17. Install vent inlet gasket and vent inlet using 4
screws supplied in the dock pack.
18. Install the grommet for the condensate drain tube.
The drain may be located on either side of the
cabinet.
S9V2-VS-SVX001-1B-EN
71
Furnace Combustion Air Exhaust Options
23. Connect PS2 tubing to switch and sensing location.
I m p o r t a n t : Trim the condensate pressure switch
tubing to length to ensure there is no sag or
trap created.
24. Remove port cap at bottom of inducer and connect
inducer condensate tubing. Connect other end of
inducer condensate tubing to top port on the
condensate trap. Cut tubing to length, if necessary.
25. Install previously removed port cap onto bottom
port of the inducer. (As viewed in upflow)
26. Connect condensate pressure switch tubing to
pressure port on the condensate trap.
I m p o r t a n t : Trim the condensate pressure switch
tubing to length to ensure there is no
sag or trap created.
27. Remove port plug from rain gutter and install in
new position on opposite side of the rain gutter.
28. Connect rain gutter condensate hose to the rain
gutter and the lower port of the condensate trap.
Cut to length, if necessary.
Before proceeding, lay unit on its back to make the
conversion easier.
1. Remove all drain hoses from condensate trap.
N o t e : When removing condensate hoses from the
condensate trap, hold the trap with your hand to
prevent the trap from breaking. Removing the
trap before the hoses is also an option.
2. Remove tubing from PS2 to cold header.
3. Remove drain tubing from bottom of inducer
housing.
4. Remove rain gutter tubing from inducer outlet.
27
23
5. Remove tubing from condensate pressure switch.
28
6. Remove the screws that hold the condensate trap
bracket. The condensate trap should not be
removed from the condensate trap bracket.
Remove assembly and retain for later installation.
25
26
24
Upflow Furnace in Horizontal
Left Position - Top Vented
Combustion Air
Changes need to be made to the inducer orientation
when installing the upflow furnace in the horizontal left
position with the combustion air vented through the
side. Additional changes are needed for hose routing,
condensate trap orientation, and inducer hoses.
N o t e : There is a plastic adapter with O-rings located
inside the cold header that is held in place by the
condensate trap bracket. Do not lose this adapter.
This adapter needs to be in place when the
condensate trap bracket is reattached.
4
2
3
5
The figure to the top right shows the furnace as it is
sent from the factory.
Use the following steps to modify the furnace for
horizontal left with side venting of combustion air.
72
S9V2-VS-SVX001-1B-EN
Furnace Combustion Air Exhaust Options
7. Loosen the clamp holding the 45° elbow. Remove
the elbow and discard.
11. Remove 3” plug on left side of unit. To be used for
condensate trap.
8. Remove three inducer screws.
12. Install condensate trap grommet.
9. Rotate the inducer so that the outlet is pointing
vertically.
13. Remove two 3” plugs on right side of cabinet. To be
used for combustion air exhaust and inlet.
10. Use the three screws to reattach the inducer to the
cold header to 30 in.-lbs. Do not overtighten.
14. Reuse the two 3” plugs to seal the two 3” default
openings on the top of the furnace.
15. Attach the vent outlet gasket to the vent outlet.
16. Install vent outlet to top of cabinet using 2 screws
supplied in the dock pack.
17. Install vent inlet gasket and vent inlet using 4
screws supplied in the dock pack.
S9V2-VS-SVX001-1B-EN
73
Furnace Combustion Air Exhaust Options
Condensate Trap Installation
22. Reinstall the condensate adapter if it was earlier
removed or ensure adapter is still in place.
I m p o r t a n t : The condensate adapter must be present
for proper condensate drain operation.
23. Install condensate trap into new location by fitting
into grommet and aligning the hole on the
condensate trap with the hole labeled “HL”.
I m p o r t a n t : When installing a 21.0” wide S-Series
furnace, the condenser trap grommet must
be rotated so that the notch in the grommet
faces the outer edge of the furnace cabinet
as shown in the illustrations below and to
the top left in next page. This allows the
rain gutter tubing to fully seat onto the
lower condensate port trap.
24. Hand tighten screws.
18. Slide PVC through vent outlet adaptor and insert
into inducer outlet.
19. Twist to insure PVC is fully inserted.
20. Tighten the two clamps.
21. Install the combustion air inlet PVC pipe.
N o t e : The vent outlet adapter is used for strain relief
against the weight of the venting. The clamp
should be tightened after the internal connection
is made.
N o t e : If required, transition to larger venting within 2'
of the cabinet. CPL00938 – 2" x 3" offset coupling
may be used and is factory supplied with 120
MBTUH furnaces. Canadian applications may
use BAYREDUCE to meet ULC-S636
requirements.
74
S9V2-VS-SVX001-1B-EN
Furnace Combustion Air Exhaust Options
Upflow Furnace in Horizontal
Left Position - Side Vented
Combustion Air
Changes do not need to be made to the inducer
orientation when installing the upflow furnace in the
horizontal left position with the combustion air vented
through the top. Changes are needed for hose routing,
condensate trap orientation, and inducer port caps.
The figure below shows the furnace as it is sent from
the factory.
Use the following steps to modify the furnace for
horizontal left with top venting of combustion air.
25. Connect PS2 tubing to switch and new sensing
location.
I m p o r t a n t : Trim the condensate pressure switch
tubing to length to ensure there is no sag or
trap created.
26. Remove port cap on left of inducer and connect
inducer condensate tubing. Connect other end of
inducer condensate tubing to top port on the
condensate trap. Cut tubing to length, if necessary.
27. Install previously removed port cap onto bottom
port of the inducer.
28. Connect condensate pressure switch tubing to
pressure port on the condensate trap.
I m p o r t a n t : Trim the condensate pressure switch
tubing to length to ensure there is no
sag or trap created
29. Connect rain gutter condensate hose to the rain
gutter and the lower port of the condensate trap.
Before proceeding, lay unit on its back to make the
conversion easier.
1. Remove all drain hoses from condensate trap.
N o t e : When removing condensate hoses from the
condensate trap, hold the trap with your hand to
prevent the trap from breaking. Removing the
trap before the hoses is also an option.
2. Remove tubing from PS2 to cold header.
3. Remove drain tubing from bottom of inducer
housing.
4. Remove rain gutter tubing from inducer outlet.
25
5. Remove tubing from condensate pressure switch.
29
28
26
S9V2-VS-SVX001-1B-EN
27
6. Remove the screws that hold the condensate trap
bracket. The condensate trap should not be
removed from the condensate trap bracket.
Remove assembly and retain for later installation.
N o t e : There is a plastic adapter with O-rings located
inside the cold header that is held in place by the
condensate trap bracket. Do not lose this adapter.
This adapter needs to be in place when the
condensate trap bracket is reattached.
75
Furnace Combustion Air Exhaust Options
4
2
3
5
7. Remove plug from 3” hole.
8. Install condensate trap grommet.
12. Attach the vent outlet gasket to the vent outlet.
13. Install vent outlet to top of cabinet using 2 screws
supplied in the doc pack.
14. Install vent inlet gasket and vent inlet using 4
screws supplied in the doc pack.
9. Remove the pressure switch bracket assembly.
10. Remove the screw that holds PS2, rotate 90 degrees
clockwise, and reattach.
11. Reattach the pressure switch bracket assembly.
76
S9V2-VS-SVX001-1B-EN
Furnace Combustion Air Exhaust Options
Condensate Trap Installation
19. Reinstall the condensate adapter if it was earlier
removed or ensure adapter is still in place.
I m p o r t a n t : The condensate adapter must be present
for proper condensate drain operation.
20. Install condensate trap into new location by fitting
into grommet and aligning the hole on the
condensate trap with the hole labeled “HL”.
When installing a 21.0” wide S-Series furnace, the
condenser trap grommet must be rotated so that the
notch in the grommet faces the outer edge of the
furnace cabinet as shown in the illustrations below and
to the top left in next page. This allows the rain gutter
tubing to fully seat onto the lower condensate port
trap.
21. Hand tighten screws.
15. Slide PVC through vent outlet adaptor and insert
into inducer outlet.
16. Twist to insure PVC is fully inserted.
17. Tighten the two clamps.
18. Install the combustion air inlet PVC pipe.
N o t e : The vent outlet adapter is used for strain relief
against the weight of the venting. The clamp
should be tightened after the internal connection
is made.
N o t e : If required, transition to larger venting within 2'
of the cabinet. An 2" x 3" offset coupling is
required if the transition is made in a horizontal
plane. Use coupling CPL00938 (Canadian
applications may use BAYREDUCE to meet ULCS636 requirements.) See Horizontal Venting
section for proper orientation of 2” x 3” offset
coupling.
S9V2-VS-SVX001-1B-EN
77
Furnace Combustion Air Exhaust Options
Upflow Furnace in Horizontal
Right Position - Top Vented
Combustion Air
Changes need to be made to the inducer orientation
when installing the upflow furnace in the horizontal
right position with the combustion air vented through
the left side. Additional changes are needed for hose
routing, condensate trap location, and inducer port
caps, and the condensate plug.
The figure below shows the furnace as it is sent from
the factory.
Use the following steps to modify the furnace for
horizontal right with left side venting of combustion air.
22. Connect PS2 tubing to switch and new sensing
location.
I m p o r t a n t : Cut to length but insure there is a rise in the
tubing to avoid condensed flue gases from
entering pressure switch.
23. Remove port cap on left side of inducer and connect
inducer condensate tubing. Connect other end of
inducer condensate tubing to top port on the
condensate trap. Cut tubing to length, if necessary.
24. Install previously removed port cap onto bottom
port of the inducer. (As viewed in upflow)
25. Connect condensate pressure switch tubing to
pressure port on the condensate trap.
I m p o r t a n t : Trim the condensate pressure switch
tubing to length to ensure there is no
sag or trap created.
26. Remove port plug from rain gutter and install in
new position on opposite side of the rain gutter.
27. Connect rain gutter condensate hose to the rain
gutter and the lower port of the condensate trap.
Route rain gutter condensate hose to the right of
the inducer motor.
Before proceeding, lay unit on its back to make the
conversion easier.
1. Remove all drain hoses from condensate trap.
N o t e : When removing condensate hoses from the
condensate trap, hold the trap with your hand to
prevent the trap from breaking. Removing the
trap before the hoses is also an option.
2. Remove tubing from PS2 to cold header.
3. Remove drain tubing from bottom of inducer
housing.
4. Remove rain gutter tubing from inducer outlet.
5. Remove tubing from condensate pressure switch.
26
22
27
24
25
23
78
6. Remove the screws that hold the condensate trap
bracket. The condensate trap should not be
removed from the condensate trap bracket.
Remove assembly and retain for later installation.
7. Remove the adapter located inside the condensate
trap connection on the cold header and retain for
later installation.
N o t e : The plastic adapter with O-rings located inside
the cold header that is held in place by the
condensate trap bracket. Do not lose this adapter.
This adapter needs to be in place when the
condensate trap bracket is reattached.
S9V2-VS-SVX001-1B-EN
Furnace Combustion Air Exhaust Options
4
5
3
2
15. Remove three inducer screws.
8. Remove 3” plug on right side of unit. To be used for
condensate trap.
9. Install condensate trap grommet.
10. Remove two 3” plugs on left side of cabinet.
16. Rotate the inducer so that the outlet is pointing
vertically.
17. Use the three inducer screws to reattach the
inducer to the cold header. Torque to 30 in.-lbs. Do
not overtighten.
11. Reuse the two 3” plugs to seal the two 3” default
openings on the top of the cabinet.
12. Attach the vent outlet gasket to the vent outlet.
13. Install vent outlet to top of cabinet using 2 screws
supplied in the doc pack.
14. Install vent inlet gasket and vent inlet using 4
screws supplied in the doc pack.
18. Remove condensate drain plug from top right
location on cold header.
19. Place condensate drain plug onto the cold header
outlet located on the bottom left of the cold header.
S9V2-VS-SVX001-1B-EN
79
Furnace Combustion Air Exhaust Options
Condensate Trap Installation
19
24. Reinstall the condensate adapter if it was earlier
removed or ensure adapter is still in place.
I m p o r t a n t : The condensate adapter must be present
for proper condensate drain operation.
25. Install condensate trap into new location by fitting
into grommet and aligning the hole on the
condensate trap with the hole labeled “HR”.
18
20. Slide PVC through vent outlet adaptor and insert
into inducer outlet.
21. Twist to insure PVC is fully inserted.
22. Tighten the two clamps.
I m p o r t a n t : When installing a 21.0” wide S-Series
furnace, the condenser trap grommet must
be rotated so that the notch in the grommet
faces the outer edge of the furnace cabinet
as shown in the illustrations below and to
the top left in next page. This allows the
rain gutter tubing to fully seat onto the
lower condensate port trap.
26. Hand tighten screw.
23. Install the combustion air inlet PVC pipe.
N o t e : The vent outlet adapter is used for strain relief
against the weight of the venting. The clamp
should be tightened after the internal connection
is made.
N o t e : If required, transition to larger venting within 2'
of the cabinet. CPL00938 – 2" x 3" offset coupling
may be used and is factory supplied with 120
MBTUH furnaces. Canadian applications may
use BAYREDUCE to meet ULC-S636
requirements.
80
S9V2-VS-SVX001-1B-EN
Furnace Combustion Air Exhaust Options
Upflow Furnace in Horizontal
Right Position - Left Side Vented
Combustion Air
Changes need to be made to the inducer orientation
when installing the upflow furnace in the horizontal
right position with the combustion air vented through
the bottom. Additional changes are needed for hose
routing, condensate trap location, and inducer port
caps, and the condensate plug.
The figure below shows the furnace as it is sent from
the factory.
Use the following steps to modify the furnace for
horizontal right with bottom venting of combustion air.
27. Connect PS2 tubing to switch and new sensing
location.
I m p o r t a n t : Trim the condensate pressure switch
tubing to length to ensure there is no sag or
trap created.
28. Remove port cap on the right side of the inducer
and connect inducer condensate tubing. Connect
other end of inducer condensate tubing to top port
on the condensate trap. Cut tubing to length, if
necessary.
29. Install previously removed port cap onto bottom
port of the inducer.
30. Connect condensate pressure switch tubing to
pressure port on the condensate trap.
I m p o r t a n t : Cut to length to ensure there is no sag
or trap created.
31. Connect rain gutter condensate hose to the rain
gutter and the lower port of the condensate trap.
Before proceeding, lay unit on its back to make the
conversion easier.
1. Remove all drain hoses from condensate trap.
N o t e : When removing condensate hoses from the
condensate trap, hold the trap with your hand to
prevent the trap from breaking. Removing the
trap before the hoses is also an option.
2. Remove tubing from PS2 pressure switch.
3. Remove drain tubing from bottom of inducer
housing.
27
4. Remove rain gutter tubing from inducer outlet.
5. Remove tubing from condensate pressure switch.
29
31
7. Remove the condensate adapter located inside the
condensate trap connection on the cold header and
retain for later installation.
28
30
S9V2-VS-SVX001-1B-EN
6. Remove the screws that hold the condensate trap
bracket. The condensate trap should not be
removed from the condensate trap bracket.
Remove assembly and retain for later installation.
N o t e : The plastic condensate adapter with O-rings
located inside the cold header that is held in
place by the condensate trap bracket. Do not lose
this adapter. The condensate adapter needs to
be in place when the condensate trap bracket is
reattached.
81
Furnace Combustion Air Exhaust Options
16. Use the three inducer screws to reattach the
inducer to the cold header. Torque to 30 in.-lbs. Do
not overtighten.
4
5
3
2
8. Remove 3” plug on right side of unit. To be used for
condensate trap.
9. Install condensate trap grommet.
14
10. Remove 3” plugs on the left side of the cabinet. To
be used for combustion air inlet.
11. Reuse the two 3” plugs to seal the two 3” default
openings on the top of the furnace.
13
12. Remove three inducer screws.
13. While the inducer is loose, remove condensate
drain plug from top right location on cold header.
14. Place condensate drain plug onto the cold header
outlet located on the bottom left of the cold header.
15. Rotate the inducer 180 degrees so that the elbow is
pointing towards the left.
82
S9V2-VS-SVX001-1B-EN
Furnace Combustion Air Exhaust Options
17. Remove the pressure switch bracket assembly.
18. Remove the screw that holds PS2, rotate 90 degrees
clockwise, and reattach.
19. Reattach the pressure switch bracket assembly.
N o t e : The inducer is shown rotated into its final
position in the illustration below.
N o t e : If required, transition to larger venting within 2'
of the cabinet. An 2" x 3" offset coupling is
required if the transition is made in a horizontal
plane. Use coupling CPL00938 (Canadian
applications may use BAYREDUCE to meet ULCS636 requirements.) See Horizontal Venting
section for proper orientation of 2” x 3” offset
coupling.
20. Cut 3” hole in bottom panel using large dimple as
guide.
24. Slide PVC through vent outlet adaptor and insert
into inducer outlet.
25. Twist to insure PVC is fully inserted.
26. Tighten the two clamps.
27. Install the combustion air inlet PVC pipe.
21. Attach the vent outlet gasket to the vent outlet.
22. Install vent outlet to top of cabinet using 2 screws
supplied in the doc pack.
23. Install vent inlet gasket and vent inlet using 4
screws supplied in the doc pack.
N o t e : The vent outlet adapter is used for strain relief
against the weight of the venting. The clamp
should be tightened after the internal connection
is made.
S9V2-VS-SVX001-1B-EN
Condensate Trap Installation
28. Reinstall the condensate adapter if it was earlier
removed or ensure adapter is still in place.
I m p o r t a n t : The condensate adapter must be present
for proper condensate drain operation.
83
Furnace Combustion Air Exhaust Options
29. Install condensate trap into new location by fitting
into grommet and aligning the hole on the
condensate trap with the hole labeled “HR”.
I m p o r t a n t : When installing a 21.0” wide S-Series
furnace, the condenser trap grommet must
be rotated so that the notch in the grommet
faces the outer edge of the furnace cabinet
as shown in the illustrations below and to
the top right. This allows the rain gutter
tubing to fully seat onto the lower
condensate port trap.
30. Hand tighten screw.
31. Connect PS2 tubing to switch and new sensing
location. Use additional tubing in ship with bag, if
necessary.
I m p o r t a n t : Trim the condensate pressure switch
tubing to length to ensure there is no sag or
trap created.
32. Remove port cap on the right side of inducer and
connect inducer condensate tubing. Connect other
end of inducer condensate tubing to top port on the
condensate trap. Cut tubing to length, if necessary.
33. Install previously removed port cap onto bottom
port of the inducer. (As viewed in upflow)
34. Connect condensate pressure switch tubing to
pressure port on the condensate trap.
I m p o r t a n t : Cut to length to ensure there is no sag
or trap created.
35. Remove port plug from rain gutter and install in
new position on opposite side of the rain gutter.
36. Connect rain gutter condensate hose to the rain
gutter and the lower port of the condensate trap.
Route rain gutter condensate hose to the right of
the inducer motor.
35
31
36
33
34
32
84
S9V2-VS-SVX001-1B-EN
Furnace Combustion Air Exhaust Options
Downflow Furnace - Top Vented
Combustion Air
No changes need to be made to the inducer when
installing the downflow furnace with the combustion
air vented through the top.
I m p o r t a n t : Trim the condensate pressure switch
tubing to length to ensure there is no sag or
trap created.
4. Slide PVC pipe through vent outlet adaptor and
insert into inducer outlet.
5. Twist to insure PVC is fully inserted.
6. Tighten the two clamps.
7. Install the combustion air inlet PVC pipe.
N o t e : The vent outlet adapter is used for strain relief
against the weight of the venting. The clamp
should be tightened after the internal connection
is made.
N o t e : If required, transition to larger venting within 2'
of the cabinet. CPL00938 – 2" x 3" offset coupling
may be used and is factory supplied with 120
MBTUH furnaces. Canadian applications may
use BAYREDUCE to meet ULC-S636
requirements.
1. Attach the vent outlet gasket to the vent outlet.
2. Install vent outlet to top of cabinet using 2 screws
supplied in the doc pack.
3. Install vent inlet gasket and vent inlet using 4
screws supplied in the doc pack.
S9V2-VS-SVX001-1B-EN
85
Furnace Combustion Air Exhaust Options
Downflow Furnace - Left Side
Vented Combustion Air
5
Changes need to be made to the inducer orientation
when installing the downflow furnace with the
combustion air vented through the side. Additional
changes are needed for hose routing and PS2 rotation.
4
The figure below shows the furnace as it is sent from
the factory.
Use the following steps to modify the furnace for
downflow with side venting of combustion air.
3
2
I m p o r t a n t : Right side vent outlet is not allowed
because condensate will not drain.
6. Remove two 3” plugs on left side of cabinet. To be
used for combustion air exhaust and inlet.
7. Reuse the two 3” plugs to seal the two 3” default
openings on the top of the cabinet.
Before proceeding, lay unit on its back to make
conversion easier.
8. Loosen the clamp holding the 45° elbow. Remove
the elbow and discard.
1. Disconnect all drain tubes from condensate trap.
N o t e : When removing condensate hoses from the
condensate trap, hold the trap with your hand to
prevent the trap from breaking.
2. Remove drain tubing from bottom of inducer
housing.
3. Remove rain gutter tubing from inducer outlet.
4. Remove tubing from condensate pressure switch.
5. Remove tubing from PS2 to cold header.
86
S9V2-VS-SVX001-1B-EN
Furnace Combustion Air Exhaust Options
9. Remove the three inducer mounting screws.
12. Remove the pressure switch bracket assembly.
10. Rotate inducer counterclockwise so that the inducer
outlet aligns with the exhaust vent outlet.
13. Remove the screw that holds PS2, rotate 90 degrees
counterclockwise, and reattach.
11. Reinsert and tighten screws to 30 in.-lbs. Do not
overtighten.
14. Reattach the pressure switch bracket assembly.
N o t e : The illustration below shows PS2 in its final
position after being rotated.
15. Attach the vent outlet gasket to the vent outlet.
16. Install vent outlet to cabinet using 2 screws
supplied in the doc pack.
17. Install vent inlet gasket and vent inlet using 4
screws supplied in the doc pack.
18. Install the grommet for the condensate drain tube.
The drain may be located on either side of the
cabinet.
19. Slide PVC through vent outlet adaptor and insert
into inducer outlet.
20. Twist to insure PVC is fully inserted.
21. Tighten the two clamps.
22. Install the combustion air inlet PVC pipe.
S9V2-VS-SVX001-1B-EN
87
Furnace Combustion Air Exhaust Options
N o t e : The vent outlet adapter is used for strain relief
against the weight of the venting. The clamp
should be tightened after the internal connection
is made.
24. Remove port cap at bottom of inducer and connect
inducer condensate tubing. Connect other end of
inducer condensate tubing to top port on the
condensate trap. Cut tubing to length, if necessary.
N o t e : If required, transition to larger venting within 2'
of the cabinet. An 2" x 3" offset coupling is
required if the transition is made in a horizontal
plane. Use coupling CPL00938 (Canadian
applications may use BAYREDUCE to meet ULCS636 requirements.) See Horizontal Venting
section for proper orientation of 2” x 3” offset
coupling.
25. Install previously removed port cap onto bottom
port of the inducer.
26. Connect condensate pressure switch tubing to
pressure port on the condensate trap.
I m p o r t a n t : Cut to length to ensure there is no sag
or trap created.
27. Remove port plug from rain gutter and install in
new position on opposite side of the rain gutter.
28. Connect rain gutter condensate hose to the rain
gutter and the lower port of the condensate trap.
Cut to length, as required.
27
25
23
26
28
24
23. Connect PS2 tubing to switch and sensing location.
I m p o r t a n t : Trim the condensate pressure switch
tubing to length to ensure there is no sag or
trap created.
88
S9V2-VS-SVX001-1B-EN
S9V2-VS-SVX001-1B-EN
Run Test Mode
Gas Hea!ng CFM
Inter-Stage Delay
Heat Off Delay
Hea!ng CFM
per Ton
Cooling CFM
per Ton
Con!nuous Fan
OD Unit Type
OD Tonnage
Cooling Off Delay
Control Release#
Last 6 Faults
Ac!ve Errors
Status Menu
130
900
140
370
370
75
Example
2 stage 1 compressor
1_5
Example
1st Stage Pressure
Switch Error
2_0
Example
Open Limit Switch
Error
099
000
180
400
400
100
Example
2 stage 2 compressor
Example
800 CFM
Example
1st Stage Pressure
Switch Error
See Run Test Menu
116
Example
2nd stage Hea!ng CFM
Example
Seconds
Example
Seconds
Example
CFM per Ton
Example
CFM per Ton
50
Example
50% Cooling Airflow
Example
1 stage 1 compressor
Example
Outdoor Nominal Tonnage
Example
seconds
021
Example
So"ware Version #
Example
2nd Stage Pressure
Switch Error
Example
2nd Stage Pressure
Switch Error
Example
1st stage Gas Heat
S9V2-VS
Control System Menu
109
300
60
25
2_5
Example
Enhanced Mode
Important:
When applied with zoning or a VSPD outdoor unit,
the CFM/Ton must be set to 400.
CFM per Ton selec!ons range from 290 – 450
Note:
Do not adjust COF above 50%.
Downflow
S9V2B080D4VS 4T[4T], 2T, 2.5T, 3T
S9V2C100D4VS 4T[4T], 2.5T, 3T, 3.5T
Model
ODT Op ons [ ]= Default
Upflow
S9V2B040U3VS 3T[3T], 1.5T, 2T, 2.5T
S9V2B060U3VS 3T[3T], 1.5T, 2T, 2.5T
S9V2B080U4VS 4T[4T], 2T, 2.5T, 3T
S9V2C100U4VS 4T[4T], 2.5T, 3T, 3.5T
S9V2D120U5VS 5T[5T], 3T, 3.5T, 4T
Scroll to the selected Menu item by momentarily depressing
the “MENU” key and then depress the “OPTION” key to the
desired se*ng. Then momentarily depress the “MENU” key
again to save the change.
SETTING UP YOUR SYSTEM:
To change any factory default value, first remove any “call”
from the furnace and allow any fan off delays to finish. (
should be seen on the display.)
Downflow
S9V2B080D4VS
S9V2C100D4VS
133 [133], 148, 120, 126
183 [183], 189, 150, 162
Model
Gas Hea ng CFM [ ]=Default
Upflow
S9V2B040U3VS
088 [088], 120, 065, 083
S9V2B060U3VS
103 [103], 113, 130, 080
S9V2B080U4VS
133 [133], 146, 120, 126
S9V2C100U4VS
183 [183], 145, 162, 172
S9V2D120U5VS
195 [195], 225, 156, 185
Gas Hea!ng CFM shown is 2nd stage airflow. 1st stage
airflow is ~80% of the selected 2nd stage airflow and
cannot be adjusted.
Gas hea!ng CFM can be adjusted while the unit is
opera!ng in gas heat mode to enable the technician to
quickly adjust to the manufacturer's suggested heat
rise across the heat exchanger.
Mul ply the value shown by 10 for actual airflow.
CLEARING THE LAST6 FAULTS:
To clear the stored faults, scroll to the last 6 faults
menu (L6F), enter the menu by scrolling to the right
and hold the “OPTION” key for at least 5 seconds.
Release and a set of 3 dashes will be seen 3 !mes.
This confirms the faults have been cleared.
Integrated Furnace Control Menu
89
Example
Calculated Airflow
90
Example
800 CFM
NOTES:
(1) The menu status displayed is solely dependent on the input of 24VAC
that is applied to the low voltage terminal strip.
(2) The status will alternate between the system mode and the airflow
request every 2 seconds.
(3) If an error occurs, an E*.* will alternately flash with the system mode
and airflow request. See first example
(4) Mul!ply the value shown by 10 for actual airflow
= Idle, no demand for cooling, hea!ng, or fan
= Demand for 1st stage gas heat
= Demand for 2nd stage gas heat
= Demand for 1st stage cooling
= Demand for 2nd stage cooling
= Demand for 1st stage heat pump
= Demand for 2nd stage heat pump
= Demand for con!nuous fan
= Demand for outdoor unit defrost, furnace running in gas heat mode
/
Calculated airflow is 800 CFM.
Airflow display is rounded down to the nearest 10 cfm
LR1 = 1st stage gas heat learning rou!ne
LR2 = 2nd stage gas heat learning rou!ne
Example
1st Stage Pressure
Switch Error
S9V2-VS
Examples of System Status
Integrated Furnace Control Menu
S9V2-VS-SVX001-1B-EN
Integrated Furnace Control Menu
Note: During run test mode, depressing the option key will allow the user to hold (HLD) that test
sequence if measurements want to be taken. The exception is RU3 (ignitor).
Run Test Mode
–
Run Test Mode:
To enter Run Test Mode, scroll to
using the Menu key, then push the op!on key. The LED will flash
three
!mes, then begin the test.
To exit the test mode, momentarily push the Menu key, cycle power to the furnace, or make a valid thermostat
call for capacity or fan.
Sequence of Run Test Mode
-Turns the inducer on in 1st stage for 30 seconds
– Turns on the inducer on 2nd stage for 30 seconds
– Turns the ignitor on for 10 seconds
– Turns the circula!ng blower on 1st stage compressor speed for 10 seconds
– Turns the circula!ng blower on 2nd stage compressor speed for 10 seconds
– Turns the circula!ng blower on 1st stage gas heat speed for 10 seconds
– Turns on the circula!ng blower on 2nd stage gas heat speed for 10 seconds
The above sequence will repeat two more !mes unless the Run Test Mode is exited, see above
Important: The Run Test Mode does not test fire the furnace or bring the outdoor unit on. It is designed to allow
the technician to observe each mode to ensure the IFC, inducer, and circula!ng blower are performing as
intended.
Belly Band Location
Distance from belly band to the front face of motor for
minimum vibration
For C Models only
Furnace Cabinet Size
Dimension “A” (inches)
B
2.705
C
1.790
D
1.790
A
For D and E Models only
Blower housings and wheel removed
from view for clarity.
S9V2-VS-SVX001-1B-EN
Furnace Cabinet Size
Dimension “A” (inches)
B
2.75
C
3.54
D
3.79
91
Integrated Furnace Control Display Codes
2 Stage Inducer with ECM Blower Motor
IdL
Idle
XtI
First Stage Gas Heating
Lr1
First Stage Gas Heat Learning Routine
Xt2
Second Stage Heating
Lr2
Second Stage Gas Heat Learning Routine
aRF
Calculated Airflow (Followed by Airflow times 10)
C0F
Continuous Fan
CLI
First Stage Cooling
CL2
Second Stage Cooling
Xp!
First Stage Heat Pump
Xp2
Second Stage Heat Pump
dFt
Defrost Mode
err
Active Alarm Menu
L6F
Last 6 Faults (To clear — Hold Option button down for 5 seconds)
Cr
Code Release Number
C0d
Cooling Off Delay (Seconds)
0dt
Outdoor Tonnage
0du
Outdoor Unit
COF
Blower Constant Fan Airflow Multiplier (Percentage)
CpC
Cooling (CFM/Ton)
CpH
Heat Pump Heating (CFM/Ton)
Xod
Heat Off Delay (Seconds)
!sd
Inter-Stage Delay (Seconds)
gXC
Gas Heating CFM 2nd Stage (1st Stage is not adjustable) (Airflow times 10)
run
Run Test Mode
Menu Options
Table 21.
Fault Code Recovery
Fault Code Recovery
1.
To view the last 6 faults, press the “Menu” key until the “Last 6
Faults” (L6F) menu appears.
2.
Enter the menu by pressing the “Option” key.
3.
The last 6 faults can be viewed.
Clearing the Last 6 Faults
1.
To clear the last 6 faults, press the “Menu” key until the “Last 6
Faults” (L6F) menu appears.
2.
Enter the menu by pressing the “Option” key.
3.
Hold the “Option” key for at least 5 seconds.
4.
Release and a set of 3 dashes with be seen 3 times. This confirms
the faults have been cleared.
7 Segment LED
MENU Button
Resetting Factory Defaults
1.
Display must be in Idle Mode.
2.
Push the “Menu” and “Option” buttons at the same time for 15
seconds then release.
3.
The 7 segment will flash “FD” 3 times. This confirms the unit has
been reset to the factory defaults.
92
OPTION Button
S9V2-VS-SVX001-1B-EN
Troubleshooting
The following pages include troubleshoong flowcharts in reference for the 2 Stage S9V2* family of furnaces only.
The informaon contained is for reference only and does not cover all scenarios or problems that may be encountered.
ONLY qualified technicians should aempt to install, troubleshoot, or repair this appliance.
Failure to follow all cauons and /or warnings could result in personal or property damage, including death.
Error Codes
Alarm Error Code
Alarm Explanation
e0!
Loss of the IRQ or other internal failures (Internal IFC error)
e2.!
Retry Exceeded (Failed to Establish Flame)
e2.2
Recycles exceeded (Loss of Established Flame) or 10X PS1 Open
e2.3
1st Stage Gas Valve Not Energized When It Should Be exceeded after 10 times
e2.4
Redundant Relay (HLO output) Not Energized when it should be exceeded after 10 times
e3.!
Shorted Pressure Switch, 1st Stage
e3.2
Open Pressure Switch, 1st Stage
e3.3
Shorted Pressure Switch, 2nd Stage
e3.4
Open Pressure Switch, 2nd Stage
e04
Open Limit (Main Thermal, Rollout Switch, or Reverse Airflow Switch)
e0s
Flame detected, should not be present
e06
Voltage reversed polarity or Bad Grounding
(1) Igniter relay fails
e6.3
(2) Igniter open
e7.!
1st stage gas valve (MVL) is energized when it should be off
e7.2
Redundant Relay (HLO output) Energized when it should Not be
e08
Flame current is low, but still strong enough to allow operation
e0g
Open Inducer Limit Switch or Condensate Pressure Switch
e10
Communication error between variable speed inducer and blower motor microprocessor
(1) 2nd stage gas valve energized when it should NOT be
(2) 2nd stage gas valve not energized when it should be
e!!
(3) 1st stage gas valve not energized when it should be
(4) Redundant relay (HLO output) not energized when it should be
e!2
Open fuse
e!3
Blower HP/OEM ID
e!4
No PM and local copy bad
e!s
Both of unit Data File in PM and local Unit Data File are corrupt
e!7
Blower motor no communication response
e!8
Blower communication failure on the control
S9V2-VS-SVX001-1B-EN
93
Troubleshooting
IFC Component Layout
FP - Flame Sensor
Connector
LINE
Connections
VSPD Inducer
Connector
Neutral
Connections
Motor
Communications
7 Segment LED
Igniter
Connector
MENU and OPTION
Select Buttons
EAC Dry Contact
HUM Dry Contact
12 Pin
Connector
Personality
Module
5 Amp Fuse
BK Jumper
94
Low Voltage Terminal Strip
S9V2-VS-SVX001-1B-EN
Troubleshooting
GETTING STARTED
Is the IFC Seven
Segment LED on?
NO
Is 120 VAC
measured at
transformer?
Is 120 VAC measured
between Line and
Neutral at the IFC?
NO
NO
Is 120 VAC
measured between
Line and Neutral at
J-box?
NO
Repair hi voltage
YES
YES
Is 24 VAC
measured at
transformer?
NO
YES
Replace Xfmr
Verify Panel Loop is
connected
YES
YES
Is 24 VAC
measured at TH
and TR at IFC?
NO
Repair wiring
YES
Replace IFC
What is the fault
code? See FAULT
LED Codes page
Go to L6F
(Last 6 Faults)
DEFINITION:
01 Fault Code
Internal failure of the control board
Replace IFC
S9V2-VS-SVX001-1B-EN
95
Troubleshooting
DEFINITION
2.1 Fault Code
RETRY Lock Out = 3 unsuccessful tries for igni!on
within a single call for heat. Lockout period is for
one hour
Flame has never been sensed
All gas appliances in the home should be turned
on to verify gas pressure
Disconnect electrical
power to furnace.
Connect manometer
to inlet gas pressure
connector
Is inlet gas pressure above
13.8" WC or less than
nameplate minimum ?
YES
Correct inlet gas pressure.
Maximum pressure is 13.8"WC
Check opera!on
NO
Is any gas
pressure
present?
Cycle power to furnace.
Connect manometer to
manifold pressure
connector and call for 1st
stage heat
Possible causes
Switch OFF?
No voltage to GV
Debris in gas valve
YES
NO
Does gas ignite?
NO
Is manifold pressure
~1.7"WC (NG)
~6.0"WC (LP)
NO
Adjust manifold gas pressure to
~1.7"WC (NG)
~6.0"WC (LP)
Check opera!on
YES
YES
Possible causes:
Burner alignment
Dirty burners
Low manifold pressure
NO
Do all burners
ignite within 4
seconds?
Check igniter
posi!on and correct
if needed. Check
opera!on
YES
Measure flame
current. Is flame
current less than 0.5
micro-amp?
YES
Possible Causes
Dirty Sensor
Dirty burners
Poor grounding
Sensor loca!on
Wire connec!ons
NO
Flame sensor is good
To measure flame current, use a VOM set to DC microamps. Connect voltmeter leads in series with flame
sensor circuit, see illustra!on
96
S9V2-VS-SVX001-1B-EN
Troubleshooting
DEFINITION
2.2 Fault Code
RECYCLE Lock Out = 10 recycles within a single
call for heat. Lockout period is for one hour.
Flame is sensed & then lost
All gas appliances in the home should be turned
on to verify gas pressure
Disconnect electrical
power to furnace.
Connect manometer
to manifold pressure
connector
NO
Cycle power to
furnace and call for
1st stage heat
Measure flame current.
Is flame current greater
than 0.75 micro-amp?
(0.75-3 µA = Normal)
YES
NO
Possible Causes:
Dirty Sensor
Dirty burners
Poor grounding
Sensor loca!on
Wire connec!ons
Is manifold pressure
~1.7"WC (NG)
~6.0"WC (LP)
NO
Adjust manifold gas pressure to
~1.7"WC (NG)
~6.0"WC (LP)
Check opera!on
YES
Posible Causes
Plugs
Blower door
Wind gust
Condensate
Power interrupt
YES
Is minimum outlet
gas manifold
pressure
maintained?
NO
Disconnect electrical
power to furnace.
Connect manometer to
inlet gas pressure
connector
Cycle power to
furnace and call for
1st stage heat
Repeat steps with
2nd stage hea!ng
YES
Is minimum outlet
gas manifold
pressure
maintained?
NO
Correct incoming
gas supply pressure
To measure flame current, use a VOM set to
DC micro-amps. Connect voltmeter leads in
series with flame sensor circuit, see
illustra!on
S9V2-VS-SVX001-1B-EN
97
Troubleshooting
DEFINITION
1st Stage Gas Valve not energized when it should
be 10 !mes within the same call for heat .
2.3 Fault Code
24VAC not sensed on MVL 10 !mes
Replace IFC
DEFINITION
High limit output relay is not closed when it
should be
2.4 Fault Code
24VAC not sensed on HLO 10 !mes
Replace IFC
DEFINITION
An error has occurred with the PS1, indica!ng that the pressure
switch is closed when it should be open.
Note #1
24 volts = Open Switch
0 volts = Closed Switch
In most cases, the pressure switch is not the problem.
NOTE: Verify pressure switch wiring and tube rou!ng
are correct.
3.1 Fault Code
Is PS1 oriented
correctly for the
applica!on?
NO
Correct orienta!on
See in this document
YES
Cycle power to the furnace
and call for 1st stage heat.
Replace pressure
switch
98
NO
Is 24 volts present,
measured across PS1
(orange to yellow)?
See Note #1
YES
Verify wiring. If
correct, replace IFC
S9V2-VS-SVX001-1B-EN
Troubleshooting
Note #1
24 volts = Open Switch
0 volts = Closed Switch
DEFINITION
An error has occurred with the PS1 indica!ng that the pressure
switch is open when it should be closed.
Note #2
Measured pressure is
nega!ve, greater than refers
to magnitude only.
In most cases, the pressure switch is not the problem.
NOTE: Verify pressure switch wiring and tube rou!ng are correct.
3.2 Fault Code
PS1 Open errors can occasionally occur when wind gusts occur.
The IFC will a"empt to close both PS1 by increasing the voltage to
the inducer motor
Is PS1 oriented
correctly for the
applica!on?
NO
Correct orienta!on
See in this document
Cycle power to the furnace
and call for 1st stage heat.
NO
Is the inducer
motor running?
NO
Is voltage measured
from
RD- WH
BK-RD
BK-WH
at the inducer
motor
YES
Replace inducer
assembly
YES
PS1 is closed
Does the igniter
glow within 60
seconds?
Yes
NO
Verify no voltage at IFC
Replace IFC
NO
Pressure switch
is okay.
NO
Is 24 volts present,
measured across PS1
(orange to yellow)?
See Note #1
YES
Is pressure greater
than pressure switch
label?
See Note #2
YES
Replace pressure switch.
Check opera!on.
NO
Possible Causes:
PS hose, flue piping for obstruc!on
and/or confirm vent size is correct
S9V2-VS-SVX001-1B-EN
99
Troubleshooting
3.3 Fault Code
DEFINITION
An error has occurred with the PS2, indica!ng that the
pressure switch is closed when it should be open.
Note #1
24 volts = Open Switch
0 volts = Closed Switch
Cycle power OFF, then ON to
the furnace
In most cases, the pressure switch is not the problem.
NOTE: Verify pressure switch wiring and tube rou!ng are
correct.
Is PS2 oriented
correctly for the
applica!on?
NO
Correct orienta!on
See in this document
YES
Replace pressure
switch
NO
DEFINITION
An error has occurred with the PS2 indica!ng that the pressure
switch is open when it should be closed.
Is 24 volts present,
measured across PS2?
(brown to yellow)?
See Note #1
YES
Verify wiring
Note #1
24 volts = Open Switch
0 volts = Closed Switch
3.4 Fault Code
In most cases, the pressure switch is not the problem.
NOTE: Verify pressure switch wiring and tube rou!ng are correct.
Is PS2 oriented
correctly for the
applica!on?
Correct orienta!on
See in this document
NO
Note #2
Measured pressure is
nega!ve, greater than refers
to magnitude only.
YES
Cycle power to the furnace
and call for 2nd stage heat.
Is the inducer
motor running?
NO
Is voltage measured
from
RD- WH
BK-RD
BK-WH
at the inducer motor?
NO
Replace inducer
assembly
YES
YES
Pressure switch
is okay.
NO
Is 24 volts present,
measured across PS2
(orange to yellow)?
See Note #1
Call Technical Support
YES
Is pressure greater
than pressure switch
label?
See Note #2
YES
Replace pressure switch.
Check opera!on.
NO
Check PS hose, flue piping for
obstruc!on and confirm vent size is
correct
100
S9V2-VS-SVX001-1B-EN
Troubleshooting
DEFINITION
Limit switches are safety devices
that will open when an abnormal
high temperature has been sensed.
REMOVE ALL JUMPER WIRING TO
SWITCHES!
Under no circumstances, shall these
switches be le' jumpered when not
troubleshoo!ng.
Verify filters and blower wheels are
clean
See next page for
addi!onal 04 faults
04 Fault Code
Is blower motor
running?
NO
See troubleshoo!ng for
motor
YES
Are either of the
flame roll-out
switches tripped?
Is 24 VAC
measured across
main thermal
limit?
YL49-YL51
YES
NO
NO
Reverse flow switch
checkout
Does motor
con!nue to run
during the en!re
hea!ng cycle?
YES
Note:
Furnace will need to be checked in
both 1st & 2nd stage opera!on
YES
Is external sta!c
pressure greater
than nameplate?
Correct applica!on or
duct issues.
Check opera!on
Is heat rise
within
specifica!on?
See Nameplate
NO
Is return air
temperature
above 85 F?
Is outlet
manifold gas
pressure within
specifica!ons?
NO
Replace reverse flow
switch
YES
YES
NO
Check for loose
insula!on or other
objects within
furnace air stream
Increase blower off delay
YES
YES
NO
Is temperature at
reverse flow switch
above
specifica!ons?
Return air
temperature is
above max limit
NO
YES
YES
Is temperature at
high limit above the
switch se#ng?
Correct gas pressure
Check opera!on
NO
Make sure any temperature
measuring devices
(thermocouples, dial
thermometers) used to
es!mate limit temperature are
within ¼ inch of limit disc
Replace high limit
switch
S9V2-VS-SVX001-1B-EN
101
Troubleshooting
04 Fault Code
Flame Rollout
DEFINITION
Limit switches are safety devices that will open
when an abnormal high temperature has been
sensed.
REMOVE ALL JUMPER WIRING TO SWITCHES!
Under no circumstances, shall these switches
be le$ jumpered when not troubleshoo!ng.
Is LP gas being
used?
YES
Is the burner orifice size
56? Or matched to
this document for LP?
NO
Install correct size
orifices
Check opera!on
NO
Disconnect electrical
power to furnace
Correct as needed
Check opera!on
YES
YES
Is flue piping
restricted?
NO
Check flue pipe for correct sizing
and long horizontal runs or slope
less than ¼” per linear foot.
Correct as needed
Remove, clean, and
reassemble burners.
Push RED reset on
both rollout switches
Cycle power to
furnace and call for
heat
Check burner alignment
Correct as needed
Check opera!on
NO
Are all burner flames directed
into heat exchanger with a
!ght pa%ern? (inadequately
aired burners tend to roll
back)
Igni!on occurs
Do all burners
ignite within 4
seconds?
NO
YES
YES
Are flames from
burners impinging on
sides of heat
exchanger?
YES
Check combus!on air
blower, ven!ng, heat
exchanger for blockage
(i.e. soo!ng)
NO
When fan comes
on, do flames
stay consistent?
NO
Replace heat
exchanger
Check opera!on
YES
Replace Roll out
switch
Check opera!on
102
S9V2-VS-SVX001-1B-EN
Troubleshooting
DEFINITION:
05 Fault Code
Flame is sensed when it
should not be.
Is flame seen
with no call for
heat?
NO
YES
Is flame current
present? See
illustra!on
NO
Replace IFC
YES
Disconnect power to
unit
Turn off gas supply!
Remove gas valve
Possible Causes:
Flame sense wire shorted to ground
Flame sensor is grounded
Are there signs of
moisture or debris in the
inlet gas screen?
YES
Inspect gas supply
for leaks and have
gas supplier check
gas quality
NO
Install drip leg per
Na!onal Fuel Gas
Code and
Installa!on
Instruc!ons
NO
Is there a drip leg installed
on inlet gas piping per
installa!on instruc!ons?
YES
Using a back-up wrench,
install new gas valve
Check opera!on
To measure flame current, use a VOM set to
DC micro-amps. Connect voltmeter leads in
series with flame sensor circuit, see
illustra!on
S9V2-VS-SVX001-1B-EN
103
Troubleshooting
DEFINITION:
Polarity Fault – Incoming high voltage
wiring is reversed
06 Fault Code
Reversed Polarity
Ensure that high voltage wiring
to unit is connected properly
Connect volt meter
to white incoming
neutral wire and
green earth ground
YES
Is ~120 VAC
read?
NO
Wiring Error
Reverse 120 vac
power leads to
furnace wiring
Disconnect incoming
electrical power to
furnace
Does meter read
more than 50
vac?
YES
Correct neutral and ground
problem. Furnace must be on a
dedicated circuit.
NO
Reconnect power
Check opera!on
Replace IFC
104
S9V2-VS-SVX001-1B-EN
Troubleshooting
DEFINITION:
Ground Fault - Incoming or chassis
ground connec!on is not sensed
06 Fault Code
Faulty Ground
Connect volt meter
to black incoming
and chassis ground
at burner box
Correct earth ground.
Check opera!on
Furnace must be on a
dedicated circuit.
Disconnect incoming
electrical power to
furnace
NO
Does meter read
~120 vac?
YES
Disconnect incoming
electrical power to
furnace
Check / correct all ground
connec!ons within furnace for
con!nuity. Furnace must be on a
dedicated circuit.
Check opera!on
S9V2-VS-SVX001-1B-EN
105
Troubleshooting
DEFINITION:
Igniter Relay Fault – The control board has sensed
that the igniter relay has stuck closed
6.3 Fault Code
Ignitor Fault – The control board has sensed that
the ignitor circuit is open or shorted.
Make a call for 1st
stage hea!ng
Igniter is good
Replace IFC
YES
Does igniter
glow?
NO
Is 120 VAC
measured between
IGN-H and IGN-N?
NO
Replace IFC
YES
YES
Verify igniter harness is
not damaged and
connectors are !ght
Disconnect electrical
power to the furnace
Disconnect igniter
and check resistance
Replace ignitor.
Check opera!on
NO
Is resistance
reading between 37
– 70 ohms?
(at ~75F)
YES
Igniter is good
106
S9V2-VS-SVX001-1B-EN
Troubleshooting
DEFINITION: External Gas Valve
Circuit Error (24 volts is present
when it should not be present)
7.1 Fault Code
Remove any hea!ng
call
Is 24 VAC nominal voltage present
between Red lead at gas valve
connec!on to chassis ground?
YES
Correct wiring
Check opera!on
NO
Replace IFC
DEFINITION:
Internal control board error
Redundant HLO relay closed
when it should not be
7.2 Fault Code
Replace IFC
S9V2-VS-SVX001-1B-EN
107
Troubleshooting
DEFINITION:
The flame sense current is less
than 0.5 micro-amp DC
08 Fault Code
Make a call for 1st
stage hea!ng
Once flame has been
established, set meter to DC
volts and measure flame
current
Ensure all burner flames directed into
heat exchanger with a !ght pa#ern?
(inadequately aired burners tend to
roll back)
Important:
LP applica!ons must have
SEN02662 flame sensor installed.
This sensor is iden!fied by having a
brown stripe / brown ceramic body
Correct flame sensor
loca!on
NO
Is flame sensor
located correctly?
See figure
YES
Is flame current
measured less than 0.5
micro-amp DC?
NO
YES
Check opera!on
Replace flame
sensor
Flame sensor is good.
Check wiring and / or
connec!ons.
Flame Sensor
To measure flame current, use a VOM set to
DC micro-amps. Connect voltmeter leads in
series with flame sensor circuit, see
illustra!on
108
S9V2-VS-SVX001-1B-EN
Troubleshooting
09 Fault Code
Defini!on:
Condensate Pressure Switch Open: The condensate system is
not free flowing and opened the safety switch OR
Inducer Limit: This error is normally caused by improper
installa!on or applica!on of the furnace ven!ng system.
Make a call for 1st
stage hea!ng
Correct condensate
drain system
YES
Is 24 VAC measured
across condensate
pressure switch?
NO
Inducer limit switch is
open.
Allow !me for inducer limit to cool.
Verify ven!ng and vent termina!ons
are within allowable lengths and clear
of any obstruc!ons.
YES
Is 24 VAC measured
across inducer limit
switch?
Correct ven!ng
system
NO
NO
Are ven!ng and vent
termina!ons are within
allowable limits and
clear any obstruc!ons.
YES
Replace IFC
Is Inducer Limit cool
and contacts closed?
Replace Inducer Limit switch.
Check opera!on
YES
Possible Causes:
Incorrect Limit switch installed
Inducer malfunc!on
Heat exchanger malfunc!on
DEFINITION:
Internal control board error.
Communica!on error
between the inducer and
blower motor microprocessors
10 Fault Code
Replace IFC
S9V2-VS-SVX001-1B-EN
109
Troubleshooting
Defini"on
The IFC has detected that internal gas valve relays have failed
OR 24 VAC is being sensed at 2nd stage gas valve
11 Fault Code
Remove any hea"ng
call
Is 24 VAC nominal voltage present
between Brown lead at gas valve
connec"on to chassis ground?
Correct wiring
Check opera"on
YES
NO
Replace IFC
Defini"on:
The onboard 5 amp fuse is open or missing.
12 Fault Code
Apply power to the
unit
Replace fuse
YES
Is 24 VAC
measured across
the fuse terminals?
NO
Is fuse fully
seated into
connector?
NO
Properly seat the
fuse
YES
Start unit and measure amp
draw on transformer 24VAC red
wire (accessories turned OFF)
Is amp draw less
than 5 amps?
Replace IFC
NO
Turn on each accessory (if
installed) and measure amp
draw. If amp draw exceeds
fuse ra"ng, correct wiring
associated with that accessory
YES
Correct low voltage wiring
Possible Causes
Field wiring shorted
Unit wiring shorted
110
S9V2-VS-SVX001-1B-EN
Troubleshooting
DEFINITION:
This fault is generated when the HP or
OEM ID of the blower motor does not
match the value that is programmed on
the Personality Module
13 Fault Code
Disconnect electrical
power to furnace.
Replace PM with the
correct model/serial
Does the model &
serial number of
the PM match the
nameplate?
NO
YES
Remove blower
ves!bule panel to
gain access to
blower motor
Replace motor with
correct HP
Does the blower
motor HP match
the nameplate?
NO
DEFINITION:
This fault is generated when the PM is
missing and the onboard informaon
cannot be read
Replace motor
YES
14 Fault Code
Disconnect power
Install and/or fully
seat
S9V2-VS-SVX001-1B-EN
NO
Is PM installed
and fully seated?
YES
Possible causes:
PM not programmed
Faulty IFC
111
Troubleshooting
DEFINITION:
This fault is generated when the PM
and the IFC informa!on is corrupted
15 Fault Code
Disconnect power
Possible causes
PM corrupted
Faulty IFC
DEFINITION:
This fault is generated when IFC does
not see a return signal from the blower
motor
17 Fault Code
Disconnect power
Install and/or fully
seat
NO
Is 4 pin motor
communica!on
connector installed
and fully seated on
the IFC?
YES
Install and/or fully
seat
NO
Is 9 pin connector at
the blower ves!bule
panel installed and
fully seated?
YES
Install and/or fully
seat
NO
Is 4 pin connector at
the blower installed
and fully seated?
YES
Verify con!nuity of all
motor wiring and replace
motor if required
112
S9V2-VS-SVX001-1B-EN
Troubleshooting
DEFINITION:
This fault is generated when the IFC
does not see a send message itelf.
18 Fault Code
With power on,
remove the 4 pin
motor connector from
the IFC
Does the error code
change to E17?
YES
Verify harness and
wiring connec!ons.
See addi!onal motor
troubleshoo!ng
NO
Replace IFC
Serial Motor
Troublesho!ng
S9V2-VS-SVX001-1B-EN
113
Troubleshooting
Serial Motor
Troubleshoo!ng
NO
Replace IFC
Check opera!on
Is ~12VDC measured
from terminals 1 (12V)
and 3 (GND) at the
IFC?
Is 120 VAC measured at
the line voltage connector
at the motor? (5 pin
connector terminals 4 and
5)
Correct, replace wiring.
Check opera!on
NO
See diagram #1 below
YES
Remove the serial
motor wiring
harness at the IFC.
Apply 24 VAC to
wires 3 & 4.
Does motor run?
See diagram #2 below
NO
Replace motor.
Check opera!on
YES
Replace IFC. Check
opera!on
DIAGRAM #1
DIAGRAM #2
#4 = WHITE wire, connects to TX
#3 = BLACK wire, connects to GND
114
S9V2-VS-SVX001-1B-EN
Sequence of Operation
N o t e : The seven segment LED readout is based on
thermostat input. During a simultaneous call for
W1 and W2, the seven segment LED will read
“Xt2”, although the IFC will process the call for
1st stage heat first.
1st Stage Gas Heating
1. R – W1 contacts close on the thermostat sending
24VAC to the W1 low voltage terminal of the IFC.
Technician should read 24VAC from W1 to B/C. The
seven segment LED will read “Xt1”.
2. T h e I F C p e r f o r m s a s e l f - c h e c k r o u t i n e a n d t h e n
confirms:
a. Condensate pressure switch and Inducer limit
switch are closed by sending 24VAC out the
HLO terminal and monitoring the ILI input.
b. Flame roll-out switches (FRS) 1 & 2, main
thermal limit (TCO), and any reverse air flow
(RAF) switches are closed by sending 24VAC out
the HLO terminal and monitoring the HLI input.
N o t e : Downflow units will have one reverse air
flow switch (RAF).
Upflow units will have two reverse air
flow switches (RAF).
c. Pressure switch 1 (PS1) and pressure switch 2
(PS2) are opened by sending 24VAC out the
HLO terminal, through the limit switches, and
monitoring the PS1 and PS2 inputs.
3.
4.
5.
6.
7.
N o t e : If a thermal limit is open, 24VAC will not
be present at either pressure switch.
After steps 2a, b, and c are confirmed, the variable
speed inducer is energized and will run at the
predetermined factory default 1st stage inducer
speed. As the inducer ramps up, PS1 will close.
When PS1 closes, the ignitor relay on the IFC will
close. The ignitor is energized and warm up is
approximately 20 seconds.
After the ignitor warm up, the 1st stage gas valve
relay is closed, energizing the 1st stage gas valve
solenoid to allow ignition.
The first burner will ignite and flame will crossover
to the remaining burners, establishing current to
the flame sensor. Flame sensing must take place
within 4 seconds.
Once flame sense has been achieved, a timer on the
IFC starts and after the “Blower On” delay has
completed, the indoor blower will energize and run
at the 1st stage gas heating speed.
•
During this time, the variable speed inducer will
start its 1st stage learning routine, seen as L R 1
on the seven segment LED display. X t 1 and L R 1
will alternately be displayed until the learning
routine has been successfully completed. See
Learning Routine section below for specifics.
S9V2-VS-SVX001-1B-EN
8. Once the 1st stage learning routine has successfully
been achieved, the seven segment LED will
alternately read:
XtI = Gas heating, Stage 1
ARF = Airflow
060 = 600 calculated cfm (value shown x 10)
9. When the temperature raises enough to satisfy the
thermostat setting, contacts R-W1 will open.
10. The gas valve relay will open, closing the gas valve.
The inducer will continue to run the post-purge for
approximately 5 seconds to remove any
combustion byproducts from inside the furnace.
11. The indoor blower continues to run the heat off
delay to remove heat from the heat exchangers.
The blower off time is field adjustable through the
IFC menu setup option. The seven segment LED will
read “IDL” = Idle, no thermostat demand.
2nd Stage Gas Heating
N o t e : 2nd stage heating cannot operate without 1st
stage operation.
1. R – W1 contacts close on the thermostat sending
24VAC to the W1 low voltage terminal of the IFC.
Technician should read 24VAC from W1 to B/C. The
seven segment LED will read “Xt1”.
2. T h e I F C p e r f o r m s a s e l f - c h e c k r o u t i n e a n d t h e n
confirms:
a. Condensate pressure switch and Inducer limit
switch are closed by sending 24VAC out the
HLO terminal and monitoring the ILI input.
b. Flame roll-out switches (FRS) 1 & 2, main
thermal limit (TCO), and any reverse air flow
(RAF) switches are closed by sending 24VAC out
the HLO terminal and monitoring the HLI input.
N o t e : Downflow units will have one reverse air
flow switch (RAF).
Upflow units will have two reverse air
flow switches (RAF).
c. Pressure switch 1 (PS1) and pressure switch 2
(PS2) are opened by sending 24VAC out the
HLO terminal, through the limit switches, and
monitoring the PS1 and PS2 inputs.
N o t e : If a thermal limit is open, 24VAC will not
be present at either pressure switch.
3. After steps 2a, b, and c are confirmed, the variable
speed inducer is energized and will run at the
predetermined factory default 1st stage inducer
speed. As the inducer ramps up, PS1 will close.
4. When PS1 closes, the ignitor relay on the IFC will
close. The ignitor is energized and warm up is
approximately 20 seconds.
115
Sequence of Operation
5. After the ignitor warm up, the 1st stage gas valve
relay is closed, energizing the 1st stage gas valve
solenoid to allow ignition.
6. The first burner will ignite and flame will crossover
to the remaining burners, establishing current to
the flame sensor. Flame sensing must take place
within 4 seconds.
7. Once flame sense has been achieved, a timer on the
IFC starts and after the “Blower On” delay has
completed, the indoor blower will energize and run
at the 1st stage gas heating speed.
•
During this time, the variable speed inducer will
start its 1st stage learning routine, seen as L R 1
on the seven segment LED display. X t 1 and L R 1
will alternately be displayed until the learning
routine has been successfully completed. See
Learning Routine section below for specifics.
8. Once the 1st stage learning routine has successfully
been achieved, the seven segment LED will
alternately read:
XtI = Gas heating, Stage 1
ARF = Airflow
060 = 600 calculated cfm (value shown x 10)
9. R-W2 contacts close on the thermostat sending
24VAC to the W2 low voltage terminal of the IFC.
Technician should read 24VAC from W2 to B/C. The
seven segment LED will read “HT2”.
10. The IFC checks to insure that PS2 is open and the
inducer is ramped up to the predetermined factory
default 2nd stage speed, closing PS2 pressure
switch. The second stage gas valve relay on the IFC
closes, energizing second stage gas valve. The
indoor blower motor will ramp up to the 2nd stage
gas heating speed.
•
During this time, the variable speed inducer will
start its 2nd stage learning routine, seen as L R 2
on the seven segment LED display. H T 2 and L R 2
will alternately be displayed until the learning
routine has been successfully completed. See
Learning Routine section below for specifics
11. Once the the 2nd stage learning routine has
successfully been completed, the seven segment
LED will alternately read:
HT2 = Gas heating, Stage 2
ARF = Airflow
123 = 1230 calculated cfm (value shown x 10)
12. When the temperature raises enough to satisfy the
thermostat setting, contacts R-W2 will open, 2nd
stage gas valve will close, the indoor blower motor
will ramp down to 1st stage, and the unit will
continue to run until R-W1 contacts open.
13. When the temperature raises enough to satisfy the
thermostat setting, contacts R-W1 will open.
14. The gas valve relay will open, closing the gas valve.
The inducer will continue to run for approximately 5
seconds to remove any combustion byproducts
from inside the furnace.
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15. The indoor blower continues to run to remove heat
from the heat exchangers. This blower off time is
field adjustable through the IFC menu setup option.
The seven segment LED will read “IDL” = Idle, no
thermostat demand.
Single Stage Cooling
1. R-Y1-G contacts on the thermostat close sending
24VAC to the Y1 and G low voltage terminals on the
IFC. Technician should read 24VAC between Y1-B/C
and between G-B/C.
N o t e : Factory supplied Y1-O jumper must remain in
place for proper seven segment LED readout.
If removed, seven segment LED will read
“HP1”.
2. 24VAC is sent to the OD unit via thermostat wiring.
3. The indoor blower ramps to the cooling airflow.
The seven segment LED for example will alternately
read:
CL1 = Cooling, Stage 1
ARF = Airflow
080 = 800 calculated cfm (value shown x 10)
4. When the temperature is lowered enough to satisfy
the thermostat setting, contacts R-Y1-G will open.
5. The OD unit shuts off and the indoor blower shuts
off, unless a blower off delay has been enabled in
the IFC setup menu options. The seven segment
LED will read “IDL” = Idle, no thermostat demand.
Two Stage Cooling
1. R-Y1-G contacts on the thermostat close sending
24VAC to the Y1 and G low voltage terminals on the
IFC. Technician should read 24VAC between Y1-B/C
and between G-B/C.
N o t e : Factory supplied Y1-O jumper must remain in
place for proper seven segment LED readout. If
removed, seven segment LED will read “HP1”.
2. 24VAC is sent to the OD unit via thermostat wiring.
3. The indoor blower ramps to the cooling airflow.
The seven segment LED for example will alternately
read:
CL1 = Cooling, Stage 1
ARF = Airflow
080 = 800 calculated cfm (value shown x 10)
4. R-Y2 contact on the thermostat closes sending
24VAC to Y2 low voltage terminal on the IFC.
Technician should read 24VAC between Y2 and B/C.
5. 24VAC is sent to the OD unit via thermostat wiring.
6. The indoor airflow ramps to 2nd stage cooling
airflow. The seven segment LED for example will
read:
CL2 = Cooling, Stage 2
ARF = Airflow
160 = 1600 calculated cfm (value shown x 10)
S9V2-VS-SVX001-1B-EN
Sequence of Operation
7. When the temperature is lowered enough to satisfy
the thermostat setting, contacts R-Y1-Y2-G will
open.
8. The OD unit shuts off and the indoor blower shuts
off, unless a blower off delay has been enabled in
the IFC setup menu options. The seven segment
LED will read “IDL” = Idle, no thermostat demand.
Variable Speed Inducer Learning Routine
The purpose of the learning routine is to determine the
most efficient inducer operating speed for the furnace
in a given heat stage. On a call for gas heat, or
transition to a given gas heat stage, the inducer is
commanded to a speed in order to close the pressure
switch for that stage.
N o t e : NOTE: Gas manifold measurements or
adjustments must not be made until the learning
routine for each stage has been successfully
completed.
There are two learning routines, one for 1st stage gas
heat and another for 2nd stage gas heat. Each learning
routine is separate and will occur:
1. Upon initial commissioning of the furnace
2. When power to the furnace has been interrupted
3. After the below number of heating cycles has been
reached
a. 150 1st stage cycles
b. 100 2nd stage cycles
1st Stage Heat
1. When 1st stage gas heat is requested, the variable
speed inducer is energized and will run at the
predetermined factory default 1st stage inducer
speed. Once the ignition process and the blower on
delay have successfully completed the IFC will
begin the Inducer Learning Routine as outlined
below
PS1 closes at default speed
a. The inducer speed is reduced every 2 seconds
until PS1 opens
c. The inducer RPM is then raised every 3 seconds
to re-close PS1. Upon PS1 closing, the IFC has
now learned the most efficient inducer speed for
1st stage gas heat operation.
PS1 does not close at default speed
The IFC will increase the speed of the inducer until:
a. The maximum RPM for 1st stage gas heat is
reached
b. Or PS1 closes
Once PS1 closes, the learning routine will begin
as stated above.
2nd Stage Heat
1. When 2nd stage gas heat is requested, the variable
speed inducer will run at the predetermined factory
default 2nd stage inducer speed.
PS2 closes at default speed
a. The inducer speed is reduced every 2 seconds
until PS2 opens
b. At the time PS2 opens, the IFC stores the
inducer RPM
c. The inducer RPM is then raised every 3 seconds
to re-close PS2. Upon PS2 closing, the IFC has
now learned the most efficient inducer speed for
2nd stage gas heat operation.
PS2 does not close at default speed
The IFC will increase the speed of the inducer until:
a. The maximum RPM for 2nd stage gas heat is
reached
b. Or PS2 closes
Once PS2 closes, the learning routine will begin
as stated above. If PS2 does not close after
reaching the maximum RPM, a PS2 open error
will be reported and the furnace will continue to
run in 1st stage for 10 minutes and retry 2nd
stage. This process will repeat until the request
for 2nd stage heat is removed.
b. At the time PS1 opens, the IFC stores the
inducer RPM
S9V2-VS-SVX001-1B-EN
117
Periodic Servicing Requirements
1. GENERAL INSPECTION – E x a m i n e t h e f u r n a c e
installation annually for the following items:
a. All flue product carrying areas external to the
Furnace (i.e. chimney, vent connector) are clear
and free of obstruction. A vent screen in the end
of the Vent (flue) Pipe must be inspected for
blockage annually, if applicable.
b. The vent connector is in place, slopes upward
and is physically sound without holes or
excessive corrosion.
c. The return air duct connection(s) is physically
sound, is sealed to the Furnace and terminates
outside the space containing the Furnace.
2.
3.
4.
5.
d. The physical support of the Furnace should be
sound without sagging, cracks, gaps, etc.,
around the base so as to provide a seal between
the support and the base.
FILTERS – Filters should be cleaned or replaced
(with high velocity filters only), monthly and more
frequently during high use times of the year such as
midsummer or midwinter.
BLOWERS – The Blower size and speed determine
the air volume delivered by the Furnace. The
Blower motor bearings are factory lubricated and
under normal operating conditions do not require
servicing. Annual cleaning of the Blower wheel and
housing is recommended for maximum air output,
and this must be performed only by a qualified
servicer or service agency.
IGNITER – This unit has a special hot surface direct
ignition device that automatically lights the
burners. Please note that it is very fragile and
should be handled with care. ! CAUTION Do NOT
touch igniter. It is extremely hot.
BURNER – Gas burners do not normally require
scheduled servicing, however, accumulation of
foreign material may cause a yellowing flame or
delayed ignition. Either condition indicates that a
service call is required. For best operation, burners
must be cleaned annually using brushes and
vacuum cleaner. Turn off gas and electric power
supply. To clean burners, remove burner bottom
plate (2 screws) and bottom burner bracket (2
screws). Twist burner towards slot, lift, and push
forward away from orifice. Remove burners.
Alternate method — Remove manifold assembly,
bottom burner plate, and bottom burner bracket.
Remove burners.
118
N o t e : Be careful NOT to break igniter when removing
burners.
Clean burners with brush and/ or vacuum cleaner.
Reassemble parts by reversal of the above
procedure.
N o t e : Natural gas units should not have any yellow
tipped flames. This condition indicates that a
service call is required. For best operation,
burners must be cleaned annually using brushes
and vacuum cleaner
N o t e : On Propane units, due to variations in BTU
content and altitude, servicing may be required
at shorter intervals.
6. HEAT EXCHANGER/ FLUE PIPE – These items must
be inspected for signs of corrosion, and/ or
deterioration at the beginning of each heating
season by a qualified service technician and
cleaned annually for best operation. To clean flue
gas passages, follow recommendations below:
a. Turn off gas and electric power supply.
b. Inspect flue pipe exterior for cracks, leaks, holes
or leaky joints. Some discoloration of PVC pipe
is normal.
c. Remove door from Furnace.
d. Inspect around insulation covering flue collector
box. Inspect induced draft Blower connections
from recuperative cell and to the flue pipe
connection.
e. Remove burners. (See 5. Burner)
f. Use a mirror and flashlight to inspect interior of
Heat Exchanger, be careful not to damage the
Igniter, Flame Sensor or other components.
g. If any corrosion is present, the Heat Exchanger
should be cleaned by a qualified service
technician.
h. After inspection is complete replace burners
and Furnace door.
i. Restore gas supply. Check for leaks using a soap
solution. Restore electrical supply. Check unit
for normal operation.
7. COOLING COIL CONDENSATE DRAIN - If a cooling
coil is installed with the Furnace, condensate drains
should be checked and cleaned periodically to
assure that condensate can drain freely from coil to
drain. If condensate cannot drain freely water
damage could occur.
S9V2-VS-SVX001-1B-EN
Notes
S9V2-VS-SVX001-1B-EN
119
About Trane and American Standard Heating and Air Conditioning
Trane and American Standard create comfortable, energy efficient indoor environments for residential applications. For
more information, please visit www.trane.com or www.americanstandardair.com.
The manufacturer has a policy of continuous data improvement and it reserves the right to change design and specifications without notice. We are committed to
using environmentally conscious print practices.
S9V2-VS-SVX001-1B-EN
02 Dec 2022
Supersedes S9V2-VS-SVX001-1A-EN (July 2022)
©2022
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