Air Handler Installation Manual
SAH
Air Handler
Design Features
Factory Options
Accessories
Dimensional Data
Physical Data
Performance Data
Engineering Guide Specifications
IM2518AG1 05/17
SAH AIR HANDLER INSTALLATION MANUAL
Table of Contents
Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Initial Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
General Installation Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-12
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-15
Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16-25
SAH 5 Speed ECM Blower Performance Data Option A. . . . . . . . . . . . . . . . . . . . . . . . . . . . 26-27
Blower Performance Data Option C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28-30
Unit Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Dimensional Data -DX Air Handler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32-33
Replacement Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Service Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Revision Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
SAH AIR HANDLER INSTALLATION MANUAL
Nomenclature
1-3
4-6
7
8-9
10
11
12
13
14
SAH
036
*
00
1
A
R
1
S
15
1
16
*
Model
SAH – Series
S i Air
Ai Handler
H dl
Build
*Factory Use Only
Unit Capacity
Refrigeration (DX)
022 MBTUH
026 MBTUH
030 MBTUH
036 MBTUH
042 MBTUH
048 MBTUH
060 MBTUH
066 MBTUH
Position
1 – Multi-position
Future Options
S – Standard
Voltage
1-208-230/60/1
Air Coil
R – Refrigerant
Vintage
* = Factory Use Only
Controls/ Motor
A – Standard/ 5 Speed ECM
C – Aurora AHB/ Variable Speed ECM1
Electric Heat
00 – None
05 – 5kW (022 – 036 only) No Breakers
10 – 10kW (036 – 066 only) No Breakers
15 – 15kW (042 – 066 only) with Breakers
20 – 20kW (060 - 066 only) with Breakers
TXV
1 – Factory Installed
Note: To field convert the SAH to bottomflow air discharge. The SAHBCK kit must be ordered separately.
Note: Air flow on the 060 and 066 units in the horizontal configurations should be limited to 1900 cfm in
cooling mode, or condensate blow off may occur.
Rev.: 2/27/2017
1. Only available with Aurora controls in the compressor section.
Initial Inspection
Units in question should also be internally inspected. If any
damage is noted, the carrier should make the proper notation on the delivery receipt, acknowledging the damage.
When the equipment is received, all items should be carefully checked against the bill of lading to be sure all crates
and cartons have been received. Examine units for shipping
damage, removing the units from the packaging if necessary.
4
SAH AIR HANDLER INSTALLATION MANUAL
General Installation Information
Follow all safety codes. Wear safety glasses and work
gloves. Use a quenching cloth for brazing operations and
have a fire extinguisher available.
Safety Considerations
Warning: Before performing service or maintenance operations on a system, turn off main power switches to the
equipment. Electrical shock could cause personal injury.
Note: Local codes and regulations take precedent over
any recommendations by the manufacturer. In addition to
conforming to manufacturer’s and local municipal building
codes, the equipment should also be installed in accordance
with the National Electric Code and National Fire Protection
Agency recommendations.
Installing and servicing heating and air conditioning
equipment can be hazardous due to system pressure and
electrical components. Only trained and qualified service
personnel should install, repair or service heating and air
conditioning equipment. Untrained personnel can perform
the basic maintenance functions of cleaning coils and cleaning and replacing filters. All other operations should be
performed by trained service personnel. When working on
heating and air conditioning equipment, observe precautions in the literature, tags and labels attached to the unit
and other safety precautions that may apply.
Physical Data
Air Handler Model Number (Refrigerant)
022
026
Air Coil Total Face Area, ft2 [m2]
030
036
3.89 [0.36]
Tube outside diameter - in. [mm]
Evaporator
Coil
042
4.86 [0.45]
3
Fins per inch
12
Suction line connection - in. [mm] sweat
5/8 [15.87]
3/4 [19.05]
Liquid line connection - in. [mm] sweat
1.8 [6.44]
2.1 [7.59]
2.5 [8.79]
9X7
[229 x 178] ]
Blower motor type/speeds
Filter Standard - 1” [51mm] Field Supplied.
1/2 [12.7]
R-410a
Condensate drain connection - (FPT) in. [mm]
Blower motor output - hp [W]
066
6.81 [0.63]
7/8 [22.23]
3/8 [9.52]
Refrigerant
Blower Wheel Size (Dia x W), in. [mm]
060
3/8 [9.52]
Number of rows
Nominal cooling capacity - tons [kW]
048
5.83 [0.54]
1/2 [373]
16 X 20
[406 X 508]
Electrical characteristics (60hz)
3 [10.55]
3.5 [12.30]
4 [14.06] 5 [17.58] 5.5 [19.33]
3/4 [19.05]
10 X 8
11 x 10
[254 x 203]
[279 x 254]
Variable Speed ECM/ 5 Speed ECM
20 X 20
[508 x 508]
208/230 - 1ph
1 [746]
22 X 20
[559 x 508]
Shipping weight - lbs. [kg]
147 [66.7]
168 [76.2]
198 [89.6]
206 [93.4]
Operating weight - lbs. [kg]
139 [63.0]
150 [68.0]
180 [81.6]
188 [85.3]
1/31/2017
5
SAH AIR HANDLER INSTALLATION MANUAL
General Installation Information cont.
Air Handler Sizing Selection
The SAH Air Handlers are designed for R410a refrigerant and should be matched with Indoor/Outdoor Split series
compressor section from your manufacturer according to the table below.
Air Handler
Indoor Split Model
(Single)
Indoor/Outdoor
Split Model (Dual Capacity)
Rated
Airflow(CFM)
SAH022***1*R1S1*
SAH026***1*R1S1*
SAH030***1*R1S1*
SAH036***1*R1S1*
SAH036***1*R1S1*
SAH042***1*R1S1*
SAH048***1*R1S1*
SAH048***1*R1S1*
SAH060***1*R1S1*
SAH060***1*R1S1*
SAH066***1*R1S1*
SAH066***1*R1S1*
022
030
036
042
048
060
070
-
026
038
049
064
072
800
850
1000
1200
1200
1300
1500
1500
1800
1800
2000
2000
Electric Heat (kW)
5
5
5
5, 10
5, 10
10, 15
10, 15
10, 15
10, 15, 20
10, 15, 20
10, 15, 20
10, 15, 20
1/31/2017
line should terminate somewhere that is easily visible by
the homeowner. Be certain to show the homeowner the
termination location of the secondary drain line and to
explain its purpose.
Moving and Storage
If the equipment is not needed for immediate installation it
should be left in its shipping carton and stored in a clean,
dry area. Units must only be stored or moved in the normal
“up” orientation.
Duct System
Many of the problems encountered with heating and
cooling systems can be linked to improperly designed or
installed duct systems. It is therefore highly important for
a successfully operating system that the duct system be
designed and installed properly.
Unit Location
Locate the unit in an indoor area that allows for easy
removal of the filter and access panels (the air handler
units are not approved for outdoor installation). Location
should have enough space for service personnel to perform
maintenance or repair. Provide sufficient room to make
refrigerant, electrical and duct connections. If the unit is
located in a confined space, such as a closet, provisions
must be made for return air to freely enter the space by
means of a louvered door, etc. The air handler section may
be installed on any level surface strong enough to support
its weight. When installed in a closet or on a stand, it should
be mounted on vibration absorbing material slightly larger
than the base to minimize vibration transmission to the
building structure.
The duct system should be sized to handle the design
airflow quietly and efficiently. To maximize sound
attenuation of the unit blower, the supply and return
plenums should include an internal duct liner of fiberglass or
constructed of ductboard for the first few feet. On systems
employing a metal duct system, canvas connectors should
be used between the unit and the ductwork. If air noise or
excessive airflow is a problem, the blower speed can be
changed. When installing a central air return grille in or near
the living space, it is recommended to design the ductwork
so that the grille is not in direct line with the return opening
in the air handler. One or two elbows will also assure a
quieter installation and system. Application of the unit to
un-insulated metal ductwork in an unconditioned space
will cause poor unit performance and allow condensation
to form on the duct and possibly cause damage to the
structure.
When installed in an attic or above a drop ceiling, the
installation must conform to all local codes. If the unit
is suspended and installed in the horizontal position,
the entire length of the unit should be supported. If the
application requires the air handler to be installed on the
attic floor then the unit should be set in a full size secondary
drain pan. In this case the secondary drain pan should be
set on top of a vibration absorbing mesh. The secondary
drain pan is usually placed on a plywood base.
A secondary drain pan should be used when equipment
is installed over a finished living area to provide
protection from water damage in case of plugging of
the air handler primary drain line. The secondary drain
If the unit is connected to existing ductwork, check the duct
system to ensure that it has the capacity to accommodate
the air required for the unit application. If the duct is too
small, as in the replacement of heating only systems, larger
ductwork should be installed. All existing ductwork should
be checked for leaks and repaired as necessary.
6
SAH AIR HANDLER INSTALLATION MANUAL
General Installation Information cont.
BLOWER COMPARTMENT
FRONT VIEW
HORIZONTAL DRAIN PAN
COIL COMPARTMENT
(Access panel removed))
HORIZONTAL
H
SECONDARY
DRAIN
S
HORIZONTAL
PRIMARY DRAIN
VERTICAL DRAIN PAN
REFRIGERANT LINE
CONNECTIONS
SIDE VIEW
ALTERNATE
DRAIN
AL
CONNECTIONS
CO
UPFLOW
UP
SECONDARY DRAIN
UPFLOW 3/4" THREADED
ADE
ED
FILTER DOOR
FI
DUCT SHOULD BE
D
TAPED TO CABINET
TA
T
FRONT BRACKET
(NO SCREWS)
PRIMARY DRAIN UPFLOW
OW
W
3/4" THREADED
DUCT WORK MAY
Y BE
FASTENED CAUTIOUSLY
WITH SCREWS TO THE
CONDENSATE
SIDES AND REAR OF UNIT
DEFLECTOR
CONDENSATE
SENSOR BRACKET
RETURN AIR
DUCT
WHEN ATTACHING DUCT WORK WITH SCREWS KEEP SCREWS WITHIN 5/8" OF SIDES AND BACK OF
AIR HANDLER. MAXIMUM LENGTH OF SCREW 3/4".
Return Duct Attachment & Component Location
If the air handler is being installed in either horizontal
position, the condensate deflector shield will need to be
removed from the vertical pan and placed on the horizontal
pan. Remove the condensate deflector shield and the
S-clips that attach it to the vertical pan. Reposition the
condensate deflector shield and S-clips on the horizontal
drain pan.
Condensate Deflector Shield
A condensate deflector shield comes attached to the
vertical A-coil drain pan. If the unit is being installed in
either the top flow or bottom flow configuration, no change
is necessary.
On units that have control option 'C' the condensate sensor
bracket will also need to be moved and attached to the
horizontal pan.
Note: Condensate deflector shield should be installed in the
S-clip section which is inside the drain pan edge.
CONDENSATE
DEFLECTOR
FEEDER
TUBES
CONDENSATE
CO
SENSOR BRACKET
S-CLIP
CONDENSATE
DEFLECTOR
S-CLIPS ON HORIZONTAL PAN
Condensate Deflector on Horizontal Drain Pan Edge
FIGURE 6: S-Clip Installation
7
DRAIN
PAN
WALL
SAH AIR HANDLER INSTALLATION MANUAL
General Installation Information cont.
The drain pan connections are designed to ASTM Standard
D 2466 Schedule 40. Use 3/4" PVC or non-corrosive metal
threaded pipe. Since the drains are not subject to any
pressure it is not necessary to use Schedule 40 pipe for
drain lines.
Condensate Drain
To facilitate complete condensate removal, the air handler
should be mounted level or slightly pitched toward the
drain. The drain line contains cold water and should be
insulated in unconditioned spaces to avoid drain line
condensation from dripping on ceiling, etc. The drain pan
has a primary and secondary drain connection. The air
handler drain connections must be connected to a drain
line and pitched away from the unit a minimum of 1/8” per
foot to allow the condensate to flow away from the air
handler. A trap must be installed in the drain line below
the bottom of the drain pan to ensure free condensate flow
(units are not internally trapped). The primary condensate
drain must be terminated to an open drain or sump. Do not
connect the condensate drain to a closed waste system.
An open vertical air vent should be installed to overcome
line length, friction and static pressure. It is recommended
that the secondary drain be connected to a drain line for all
units. The secondary drain should be run to an area where
the homeowner will notice it draining which means that
the primary drain is blocked. The drain line should not be
smaller than the drain connection at the condensate pan.
If the air handler is located in an unconditioned space,
water in the trap may freeze. Since the air handler is under
negative pressure it is recommended to prime the traps
so air is not drawn through the condensate drain. It is
recommended that the trap material be of a type that will
allow for expansion of water when it freezes. All unused
drain ports should be capped. Drain lines must be in
conformance with local codes.
Vent
3/4" PVC
NPT FITTING
3/4" PVC
1/8" per foot
3.0"
1.5"
Air Handler Configuration
The Air Handler is factory configured for upflow and
horizontal right hand air discharge installation. For
bottomflow or horizontal right hand discharge, certain field
modifications are required.
Warning: Do not lift or reposition the ‘A’ coil by grasping
the almuminum tube header or distributor. This could
cause a tubing fracture resulting in a refrigerant leak.
CAUTION: Threaded drain connection should be
hand-tightened, plus no more than 1/16 turn.
8
SAH AIR HANDLER INSTALLATION MANUAL
General Installation Information cont.
Bottomflow Application
Horizontal Left Air Discharge Application
To convert the SAH Series air handler for bottomflow applications follow the steps below:
1.
With the air handler in the verticle top flow position
remove all access panels and the refrigerant line panel.
2. Carefully slide the air coil assembly out of the cabinet.
3. Rotate the cabinet 180˚ so the blower outlet is facing
down.
4. Install the SAHBCK bottom flow conversaion kit per
instructions in the kit. Failure to install this kit will
result in condensate blow-off from the 'A' coil into the
cabinet and ductwork.
5. Place the air coil assembly back on the air coil support
brackets.
6. Reattach the refrigerant line panel and the other access
panels.
7. Bottom air discharge units should be sealed well to the
floor to prevent air leakage.
To convert the SAH Series air handler for horizontal left air
discharge applications follow the steps below:
1.
With the air handler in the vertical top flow position
remove all access panels and the refrigerant line panel
2. Carefully slide the air coil assembly out of the cabinet.
3. Remove and reposition the condensate deflector from
the vertical pan to the horizontal pan.
4. Rotate the cabinet 180˚ so the blower outlet is facing
down.
5. Place the air coil assembly back on the air coil support
brackets.
6. Reattach the refrigerant line panel and the other access
panels.
7. Position the air handler in the left hand horizontal application.
8. Remove the drain pan plugs from the horizontal pan
and screw them in the vertical drain pan.
9. Reattach the refrigerant line panel and the other access
panels.
10. If the unit is suspended, the entire length of the cabinet
should be supported.
NOTE: Air Handlers with control option 'C', which are
installed in the bottomflow or horizontal left position, will
have to re-route the condensate sensor and FP2 sensor
wires. The wires can be routed as shown below. A section of
electrical spiral wrap is included in the Installers Kit. Wrap
the section of wire that is placed in the corner with the
wrap to protect the wires.
Important: When removing the coil, there is possible danger of equipment damage and personal injury. Be careful
when removing the coil assembly from the unit.
ELECTRICAL
SPIRAL WRAP
UPFLOW
DOWNFLOW
BOTTOMFLOW
HEAT
HEAT
HEAT
HORIZONTAL RIGHT
HEAT
HORIZONTAL LEFT
FIGURE 3: Typical Installation
Note: Air flow on the 060 and 066 units in the horizontal configuration should be limited to 1900
CFM in cooling mode, or condensate blow off may occur.
9
SAH AIR HANDLER INSTALLATION MANUAL
General Installation Information cont.
Air Handler Installation
Refer to the Refrigerant Line Sizing table to determine the
proper line set configuration for the system being installed.
Line sets over 60 feet in length are not recommended. If the
line set is kinked or deformed and cannot be reformed, the
bad section of pipe should be replaced. A restricted line set
will affect unit performance. Line sets should be routed as
directly as possible, avoiding any unnecessary bends and
turns.
The air handler is attached to the shipping pallet with four
external shipping brackets.
An air filter must always be installed upstream of the air
coil on the return air side of the air handler and must be
field supplied. Filtration can be added external to the unit
or the integral filter rack may be used. A 1" filter access rack
has been built into the cabinet. Remove the filter access
cover and install the proper sized filter. Standard 1" size
permanent or throw away filter may be used. If there is
limited access to the filter rack for normal maintenance, it is
suggested that a return air filter grille be installed. Be sure
that the return duct is properly installed and free of leaks
to prevent dirt and debris from bypassing the filter and
plugging the air coil.
VAPOR LINE
THERMAL
EXPANSION
VALVE BULB
(Cover completely
with insulation
provided)
The cabinet should be sealed so that unconditioned warm
air can not enter the cabinet. Warm air will introduce
moisture into the cabinet which could result in water blowoff problems, especially when installed in an unconditioned
space. Make sure that the liquid line, suction line and drain
line entry points into the cabinet are well sealed. Use the
butyl tape supplied with the air handler to seal around the
copper lines entering the cabinet.
TXV
EQUALIZER
LINE
LIQUID LINE
THERMAL
EXPANSION
VALVE
DISTRIBUTOR
BODY
Leak Testing
All wall penetrations should be sealed properly. The line
set should not come into direct contact with water pipes,
floor joists, wall studs, duct work, floors, walls and brick. The
line set should not be suspended from joists or studs with
a rigid wire or strap which comes into direct contact with
the tubing. Wide hanger straps which conform to the shape
of the tubing are recommended. All line sets should be
insulated with a minimum of 3/8” closed cell insulation. The
line set insulation should be pliable, and should completely
surround the refrigerant line. As in all R-410a equipment,
a reversible liquid line filter drier is required to insure all
moisture is removed from the system. This drier is factory
installed in the Manufacturers Split compressor section.
This drier should be replaced whenever “breaking into” the
system for service. All exterior insulation should be painted
with UV resistant paint or covering to insure long insulation
life.
The refrigeration line set must be pressurized and checked
for leaks before purging and charging the unit. To pressurize
the line set, attach refrigerant gauges to the service ports
and add an inert gas (nitrogen or dry carbon dioxide)
until pressure reaches 60 to 90 PSIG. Never use oxygen or
acetylene to pressure test the system. Use an electronic leak
detector or a good quality bubble solution to detect leaks
on all connections made in the field. Be sure to check the
service valve ports and stems for leaks. If a leak is found,
repair it and repeat the above steps. For safety reasons do
not pressurize the system above 150 PSIG. Purge pressure
from the line set slowly when the pressure test is complete.
The system is now ready for evacuation.
System Evacuation
Ensure that the line set and air coil are evacuated before
opening service valves. The line set and air coil must be
evacuated to 250 microns with a good quality vacuum
pump and use a vacuum gauge to ensure that air and
moisture are removed. With the system shut off from the
vacuum pump a sufficient system vacuum is achieved when
a 500 micron vacuum can be held for 30 minutes. A fast
rise to atmospheric pressure indicates a leak, while a slower
rise to around 1500 microns indicates moisture is still
present in the system and further evacuation is required.
Connection to the Coil
Connect the refrigerant line set to the ‘A’ coil tubes.
Nitrogen should be bled through the system at 2 to 3 PSI
to prevent oxidation inside the refrigerant tubing. Use a low
silver phos-copper braze alloy on all brazed connections.
The Split compressor section is shipped with a factory
charge and the service valves are not to be opened until the
line set and air handler have been leak tested, purged and
evacuated. A damp towel or heat sink should be used on
the service valves to prevent damage caused by excessive
heat.
10
SAH AIR HANDLER INSTALLATION MANUAL
General Installation Information cont.
Warning – There are 12 total (360°) turns on the superheat
adjustment stem from wide open to fully closed.
When adjusting the superheat stem counterclockwise
(superheat increase) and the stop is reached, any further
counterclockwise turning adjustment will damage the valve.
Refrigeration
The SAH Series air handlers are supplied with an expansion
device. The txv supplied has an internal check valve so no
external check valve is necessary. Check sub-cooling and
superheat, refrigerant charge and txv may require further
adjustment.
Charging the System
Refer to the compressor section Installation Manual for
charging the system, checking subcooling/superheat and
unit operating parameters. Refer to the Refrigerant Line
Sizing table for initial refrigeration charge amounts used
with the split.
TXV Superheat Adjustment Procedure (see figure 4)
Txv’s may require adjustment for a specific application.
1. Remove the seal cap from the bottom of the valve.
2. Turn the adjustment screw counterclockwise to increase
superheat and clockwise to decrease superheat.
One complete 360° turn changes the superheat
approximately 1-2°F. You may need to allow as much as
30 minutes after the adjustment is made for the system
to stabilize.
3. Once the proper superheat setting has been achieved
replace and tighten the seal cap.
Line Set Sizes
20 feet
40 feet
60 feet
Split
Factory
Charge
(oz.)
*Charge
Amount with
SAH Air
Handler (oz.)
3/8” OD
56
76
3/4” OD
3/8” OD
56
82
3/4” OD
1/2” OD
56
96
3/8” OD
7/8” OD
1/2” OD
74
104
3/8” OD
7/8” OD
1/2” OD
90
112
Unit
Size
Air
Handler
Suction
Liquid
Suction
Liquid
Suction
Liquid
022
SAH022
5/8” OD
3/8” OD
5/8” OD
3/8” OD
3/4” OD
030
SAH030
5/8” OD
3/8” OD
3/4” OD
3/8” OD
036
SAH036
5/8” OD
3/8” OD
3/4” OD
3/8” OD
042
SAH042
3/4” OD
3/8” OD
3/4” OD
048
SAH048
3/4” OD
3/8” OD
7/8” OD
060
SAH060
7/8” OD
1/2” OD
7/8” OD
1/2” OD
1-1/8” OD
1/2” OD
92
119
070
SAH066
7/8” OD
1/2” OD
7/8” OD
1/2” OD
1-1/8” OD
1/2” OD
108
135
026
SAH026
5/8” OD
3/8” OD
3/4” OD
3/8” OD
3/4” OD
1/2” OD
52
72
038
SAH036
5/8” OD
3/8” OD
3/4” OD
3/8” OD
3/4” OD
1/2” OD
56
96
049
SAH048
3/4” OD
3/8” OD
7/8” OD
3/8” OD
7/8” OD
1/2” OD
90
112
064
SAH060
7/8” OD
1/2” OD
7/8” OD
1/2” OD
1-1/8” OD
1/2” OD
96
119
072
SAH066
7/8” OD
1/2” OD
7/8” OD
1/2” OD
1-1/8” OD
1/2” OD
104
133
CAPACITY MULTIPLIER
1.00
0.985
0.97
Notes: * The “Charge Amount with SAH Air Handler” column is based on the charge amount for a SAH Air Handler +
Compressor Section/Split.
Additional charge will need to be added accordingly for line set length.
After charge is added, additional adjustments can be made to get appropriate subcooling and superheat measurements.
Additional charge for R410A is 0.50 oz. per ft. for 3/8” and 1.0 oz. per ft. for 1/2” tube.
Longer line sets will significantly reduce capacity and efficiency of the system as well as adversely effect the system reliability
due to poor oil return.
11
1/13/2017
SAH AIR HANDLER INSTALLATION MANUAL
General Installation Information cont.
Figure 4:
Decrease Superheat: Open Valve
Increase Superheat: Close Valve
12
SAH AIR HANDLER INSTALLATION MANUAL
Electrical Data
All field wiring must comply with local and national fire,
safety and electrical codes. Be sure the available power is
the same voltage and phase as that shown on the unit serial
plate. Refer to the unit Electrical Data table for fuse and circuit breaker sizing. Line voltage power should be supplied
to the breakers on air handlers with 15kW and 20kW heater
kits (see the electric heat control section picture).
SAH Auxiliary Heat Minimum Blower Settings
15kW and 20kW Wiring Instructions
If two separate circuits are used to supply power to the auxiliary heat kit, the installer will need to verify that each leg
of the auxiliary circuit breakers are wired from the power
supply correctly in order for the electric heat kit to operate
properly. This can be done by measuring the supply side
voltage of the auxiliary heat circuit breakers. Put a voltmeter lead on the L2 side of Circuit Breaker One and on the
L2 side of Circuit Breaker Two. The voltmeter should read
approximately 0 volts. If the meter reads high voltage, the
auxiliary heat breakers need to be rewired so that breakers
in the auxiliary heat kit match the wiring of the Disconnect
Panel breakers. Meaning, L1 and L2 from one breaker in the
disconnect panel must connect to L1 and L2 at one of the
auxiliary heat circuit breakers and L1 and L2 from the other
breaker in the disconnect panel must connect to L1 and L2
of the other auxiliary heat circuit breaker, making sure that
the L1 and L2 from each disconnect breaker matches the L1
and L2 at each of the auxiliary heat breakers.
SAH
Model
5-Speed ECM Minimum
Blower Setting
VS ECM Minimum
Blower Setting
Heater
kW
022
026
030
036
036
042
042
048
048
060
060
060
066
066
066
5
5
5
4
5
4
5
4
5
4
4
5
4
4
5
9
9
9
9
11
9
12
9
12
7
8
10
7
8
10
5
5
5
5
10
10
15
10
15
10
15
20
10
15
20
Air flow level for auxiliary heat (Aux) must be equal to or
above the minimum setting in this table
3/10/2017
On air handlers with 15 and 20kW heater kits, a circuit
breaker cover is provided. The installer can place the cover
on the outside of the cabinet to seal the breaker opening.
The cover will still allow operation of the breaker switches.
On air handlers with no electric heat installed, or with 5kW
and 10kW heater kits the power should be supplied to L1
and L2 lugs on PB (see air handler control section picture).
15kW and 20kW Heater Kits with Control Option C
Air Handler Control Section:
Power should be supplied to PB on air handlers with no
electric heat and 5kW or 10kW heaters.
On units with control option C that are equipped with factory installed 15 or 20kW heater kits, the installer will need
to route the wires through the electric heat current transducer that is connected to the BLACK wires. The wires that
are identified with a label will need to pass through the center of the transducer, and will need to be disconnected from
the breakers screw lugs. Once the wires are passed through
the transducer, reconnect to the breakers and secure tightly
in the screw lugs. On 5 and 10kW heater kits, the electric
heat current transducer is factory installed.
Electric Heat Control Section:
Power should be supplied to the breakers on air handlers
with 15kW and 20kW heaters.
13
SAH AIR HANDLER INSTALLATION MANUAL
Electrical Data cont.
Electric Heat Capacity
Model
022
026
030
036
042
048
060
066
KW
BTUH
240v
0
4.8
0
4.8
0
4.8
0
4.8
9.6
0
9.6
14.4
240v
0
16,382
0
16,382
0
16,382
0
16,382
32,765
0
32,765
49,147
14.4
49,147
0
9.6
14.4
0
32,765
49,147
14.4
49,147
0
9.6
14.4
0
32,765
49,147
14.4
49,147
19.2
65,530
19.2
65,530
0
9.6
14.4
0
32,765
49,147
14.4
49,147
19.2
65,530
19.2
65,530
Supply
Circuit
single
single
single
single
single
single
single
L1/L2
L3/L4
single
single
L1/L2
L3/L4
single
single
L1/L2
L3/L4
single
L1/L2
L3/L4
single
single
L1/L2
L3/L4
single
L1/L2
L3/L4
Rated
Voltage
208-230/60/1
Voltage
Min/Max
Fan
Motor
FLA
197/253
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
4.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
-
Heater
Ampacity
208v
17.3
17.3
17.3
17.3
34.7
34.7
52.0
34.7
17.3
34.7
52.0
34.7
17.3
34.7
52.0
34.7
17.3
69.3
34.7
34.7
34.7
52.0
34.7
17.3
69.3
34.7
34.7
240v
20.0
20.0
20.0
20.0
40.0
40.0
60.0
40.0
20.0
40.0
60.0
40.0
20.0
40.0
60.0
40.0
20.0
80.0
40.0
40.0
40.0
60.0
40.0
20.0
80.0
40.0
40.0
Total Unit FLA
208v
4.0
21.3
4.0
21.3
4.0
21.3
4.0
21.3
38.7
7.0
41.7
59.0
41.7
17.3
7.0
41.7
59.0
41.7
17.3
7.0
41.7
59.0
41.7
17.3
76.3
41.7
34.7
7.0
41.7
59.0
41.7
17.3
76.3
41.7
34.7
240v
4.0
24.0
4.0
24.0
4.0
24.0
4.0
24.0
44.0
7.0
47.0
67.0
47.0
20.0
7.0
47.0
67.0
47.0
20.0
7.0
47.0
67.0
47.0
20.0
87.0
47.0
40.0
7.0
47.0
67.0
47.0
20.0
87.0
47.0
40.0
Minimum
Circuit
Ampacity
208v
240v
5.0
5.0
26.6
30.0
5.0
5.0
26.6
30.0
5.0
5.0
26.6
30.0
5.0
5.0
26.6
30.0
48.4
55.0
8.8
8.8
52.1
58.8
73.8
83.8
52.1
58.8
21.6
25.0
8.8
8.8
52.1
58.8
73.8
83.8
52.1
58.8
21.6
25.0
8.8
8.8
52.1
58.8
73.8
83.8
52.1
58.8
21.6
25.0
95.4
108.8
52.1
58.8
43.4
50.0
8.8
8.8
52.1
58.8
73.8
83.8
52.1
58.8
21.6
25.0
95.4
108.8
52.1
58.8
43.4
50.0
Maximum Fuse/
HACR
208v
10
30
10
30
10
30
10
30
50
15
60
80
60
25
15
60
80
60
25
15
60
80
60
25
100
60
50
15
60
80
60
25
100
60
50
240v
10
30
10
30
10
30
10
30
60
15
60
90
60
25
15
60
90
60
25
15
60
90
60
25
110
60
50
15
60
90
60
25
110
60
50
1/10/17
Rev.
Rated Voltage of 208/230/60/1
HACR circuit breaker in USA only
14
SAH AIR HANDLER INSTALLATION MANUAL
Electrical Data cont.
Standard Non-Communicating Control Option A
Field low voltage point to point wiring:
From
Thermostat
To Air
Handler
To Compressor
Section
C
C
C
R
R
R
G
G
O
O
O
Y1
Y1
Y1
Y2
Y2
Y2
W2
W
L
L
L
5/02/2017
Air Handler transformer must be 75VA.
Communicating Thermostat Control Option A
Field low voltage point to point wiring:
From
To ABC P7 in
Communicating
Compressor
Thermostat
Section
C
C
R
R
+
+
Air Handler transformer must be
75VA.
From ABC
Outputs
To Air
Handler
C
R
G
CC
CC2
EH1
C
R
G
Y1
Y2
W
O
L
5/02/2017
Non-Communicating Thermostat Control Option C
Field low voltage point to point wiring:
From
Thermostat
To ABC in
Compressor
Section
From ABC
P7 in
Compressor
Section
To PB2
in Air
Handler
C
C
C
C
R
R
R
R
G
G
-
-
+
+
O
O
Y1
Y1
Y2
Y2
W2
W
L
L
3/7/2017
Air Handler transformer must be 100VA.
Communicating Thermostat Control Option C
Field low voltage point to point wiring:
From
Communicating
Thermostat
To Air
Handler
PB3
To Compressor
Section
ABC Board P7
C
C
C
R
R
R
-
-
-
+
+
+
Air Handler transformer must be 100VA.
1/10/2017
15
SAH AIR HANDLER INSTALLATION MANUAL
Wiring Schematics
SAH Air Handler Control Option A Schematic
97P901-01
Air Handler No Electric Heat
208-230/60/1
L1
L2
G
PB
L1
Transformer
L2
Black
24V
Red
Orange
NOTE 1
Brown
Blue
Yellow
Black
C
Blk/Wh
5 Speed
ECM
Blower
Motor
1
2
3
4
TB
Grn/Yel
5
L
Red
Thermostat
R
R
Blue
O
G
L1
Grey
Y1
Tan
Y2
W
G
C
C
Y1
N
Y2
W1
O
G
L
S
X1
X2
Legend
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB-L2 with red transformer wire.
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
2 – Low voltage wiring CLASS 2.
TS
Thermal Limit Switch
G
EHC
EHC
P
1 2 3
Light emitting diode - Green
208-230V Relay coil
Electric Heat Contactor
Polarized connector
Field wire lug
L1
Ground
N.O., N.C.
ER1 to ER4 - Aux heat stage relays
16
PB -
Power block
HE -
Heater element
Breaker
SAH AIR HANDLER INSTALLATION MANUAL
Wiring Schematics cont.
SAH Air Handler Control Option A Schematic
FL1
HE1
TS1
RELAY
R1
97P901-02
Air Handler 5kW Electric Heat
Blue
Blue
1
White
2
3
208-230/60/1
Yellow
Yellow
Blue
L1
L2
G
L1
Transformer
Black
24V
Red
L2
PB
Orange
NOTE 1
Brown
Blue
Yellow
Black
C
Blk/Wh
5 Speed
ECM
Blower
Motor
1
2
3
4
TB
Grn/Yel
5
L
Red
Thermostat
R
R
Blue
C
White
O
G
L1
Grey
Y1
Tan
Y2
W
G
Blue
C
Y1
N
Y2
W1
O
G
L
S
X1
X2
Legend
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB-L2 with red transformer wire.
2 – Low voltage wiring CLASS 2.
TS
Thermal Limit Switch
G
EHC
EHC
P
1 2 3
Light emitting diode - Green
208-230V Relay coil
Electric Heat Contactor
Polarized connector
Field wire lug
L1
Ground
N.O., N.C.
ER1 to ER4 - Aux heat stage relays
17
PB -
Power block
HE -
Heater element
Breaker
SAH AIR HANDLER INSTALLATION MANUAL
Wiring Schematics cont.
SAH Air Handler Control Option A Schematic
97P901-03
Air Handler 10kW Electric Heat
Yellow
Yellow
TS1
Yellow
HE2
Yellow
FL2
FL1
HE1
Blue
Blue
Blue
RELAY
Blue
R1
RELAY
R2
1
208-230/60/1
L1
White
Brown
Yellow
Orange
2
3
Blue
Blue
L2
G
Yellow
L1
Transformer
Black
24V
Red
L2
PB
Orange
NOTE 1
Brown
Blue
Yellow
Black
C
Blk/Wh
5 Speed
ECM
Blower
Motor
1
2
3
4
TB
Grn/Yel
5
L
Red
Thermostat
R
R
Blue
C
White
Grey
Y1
Tan
Y2
W
O
G
L1
G
Blue
C
Y1
N
Y2
W1
O
G
L
S
X1
X2
Legend
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB-L2 with red transformer wire.
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
2 – Low voltage wiring CLASS 2.
TS
L1
Thermal Limit Switch
G
EHC
EHC
P
1 2 3
Light emitting diode - Green
208-230V Relay coil
Electric Heat Contactor
Polarized connector
Field wire lug
Ground
N.O., N.C.
ER1 to ER4 - Aux heat stage relays
18
PB -
Power block
HE -
Heater element
Breaker
SAH AIR HANDLER INSTALLATION MANUAL
Wiring Schematics cont.
SAH Air Handler Control Option A Schematic
97P901-04
Blue
Air Handler 15kW Electric Heat
Red
Black
Yellow
HE3
FL3
HE2
FL2
FL1
HE1
TS1
TS2
Black
Yellow
Blue
RELAY
R1
Brown
Yellow
208-230/60/1
Circuit 2
G
Brown
Blue
1
5
3
H
5
3
H
4
1
H
SEQ2
4
1
H
SEQ1
White
Orange
2
3
Blue
L2
Blue
BRK2
Blue
L1
Yellow
Black
NOTE 2
Blue
L2
BRK1
208-230/60/1
Circuit 1
Red
G
L1
Yellow
Red
Black
L1
Transformer
Black
24V
Red
L2
PB
Orange
NOTE 1
Brown
Blue
Yellow
Black
C
Blk/Wh
1
2
5 Speed
ECM
Blower
Motor
3
Blue
4
Grn/Yel
TB
5
Red
R
Thermostat
R
L
N
G
White
Blue
C
C
Grey
Y1
Y1
Tan
Y2
Y2
W
O
W1
G
L1
O
G
L
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB-L2 with red transformer wire.
2 – Use manufacturer’s part number 19P592-01
(jumper bar assembly) when single source power is
required.
3 – Low voltage wiring CLASS 2.
Legend
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
TS
L1
Thermal Limit Switch
G
EHC
EHC
P
1 2 3
Light emitting diode - Green
208-230V Relay coil
Electric Heat Contactor
Polarized connector
Field wire lug
Ground
N.O., N.C.
ER1 to ER4 - Aux heat stage relays
PB -
Power block
HE -
Heater element
Breaker
S
X1
X2
Dual Power Supply Connections
If two separate circuits are used to supply power to the
auxiliary heat kit, the Installer will need to verify that each leg of
the auxiliary heat circuit breakers are wired from the power
supply correctly in order for the electric heat kit to operate
properly. This can be done by measuring the supply side
voltage of the auxiliary heat circuit breakers. Put a voltmeter on
the L2 side of Circuit Breaker One and on the L2 side of Circuit
Breaker Two. The voltmeter should read approximately 0 volts.
If the meter reads high voltage, the auxiliary heat breakers
need to be rewired so that breakers in the auxiliary heat kit
match the wiring of the Disconnect Panel breakers. Meaning,
L1 and L2 from one breaker in the disconnect panel must
connect to L1 and L2 at one of the auxiliary heat circuit
breakers and L1 and L2 from the other breaker in the
disconnect panel must connect to L1 and L2 of the other
auxiliary heat circuit breaker, making sure that the L1 and L2
from each disconnect breaker matches the L1 and L2 at each
of the auxiliary heat breakers.
19
SAH AIR HANDLER INSTALLATION MANUAL
Wiring Schematics cont.
SAH Air Handler Control Option A Schematic
97P901-05
Black
Black
Yellow
TS2
HE3
FL3
HE2
FL2
FL4
Black
HE4
FL1
HE1
Yellow
Yellow
Yellow
Blue
RELAY
R2
208-230/60/1
Circuit 2
G
Brown
3
H
4
1
H
SEQ2
TS1
Brown
Blue
Blue
Black
5
Air Handler 20kW Electric Heat
Red
Red
RELAY
R1
Blue
White
5
3
H
4
1
H
SEQ1
1
White
Orange
2
3
Blue
Blue
BRK2
L2
Red
Red
L1
Black
Black
NOTE 2
L2
BRK1
208-230/60/1
Circuit 1
Blue
Blue
L1
Black
Black
G
Red
Black
L1
Transformer
Black
24V
Red
L2
PB
Orange
NOTE 1
Brown
Blue
Yellow
Black
C
Blk/Wh
1
2
5 Speed
ECM
Blower
Motor
3
Blue
4
TB
Grn/Yel
5
Red
R
Thermostat
R
L
N
G
White
Blue
C
C
Grey
Y1
Y1
Tan
Y2
Y2
W
O
W1
G
L1
O
G
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB-L2 with red transformer wire.
L
2 – Use manufacturer’s part number 19P592-01
(jumper bar assembly) when single source power is
required.
X1
3 – Low voltage wiring CLASS 2.
Legend
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
TS
L1
Thermal Limit Switch
G
EHC
EHC
P
1 2 3
Light emitting diode - Green
208-230V Relay coil
Electric Heat Contactor
Polarized connector
Field wire lug
Ground
N.O., N.C.
ER1 to ER4 - Aux heat stage relays
PB -
Power block
HE -
Heater element
S
X2
Dual Power Supply Connections
If two separate circuits are used to supply power to the
auxiliary heat kit, the Installer will need to verify that each leg of
the auxiliary heat circuit breakers are wired from the power
supply correctly in order for the electric heat kit to operate
properly. This can be done by measuring the supply side
voltage of the auxiliary heat circuit breakers. Put a voltmeter on
the L2 side of Circuit Breaker One and on the L2 side of Circuit
Breaker Two. The voltmeter should read approximately 0 volts.
If the meter reads high voltage, the auxiliary heat breakers
need to be rewired so that breakers in the auxiliary heat kit
match the wiring of the Disconnect Panel breakers. Meaning,
L1 and L2 from one breaker in the disconnect panel must
connect to L1 and L2 at one of the auxiliary heat circuit
breakers and L1 and L2 from the other breaker in the
disconnect panel must connect to L1 and L2 of the other
auxiliary heat circuit breaker, making sure that the L1 and L2
from each disconnect breaker matches the L1 and L2 at each
of the auxiliary heat breakers.
Breaker
20
SAH AIR HANDLER INSTALLATION MANUAL
Wiring Schematics cont.
SAH Air Handler Control Option C Schematic
97P903-01
Unit Power
208-230/60/1
L1
G
Air Handler No Electric Heat
L2
Blower Pe
L1
PB1
L2
Black
MODEL
Grn/Yel
Black/White
022
0
026
0
030
0
036
0
042
0
048
0
060
0
066
0
L2
L2
L1
L1
Transformer
R
C
Note:1
Red
MAX
Yellow
Blue
S
C
DISCH
+5
P14
24V
Gray
T
Gray
P11
DIV
K1
Status
G
7
C
AHB™
P1
6
5
$XURUD$LU+DQGOHU%RDUG
1
5
P12
4
Acc 2 – Dip 5
Orange
Analog Output 0-10VDC
Orange
Black
Not Used
Black
Factory settings
L-H settings MU
"Aux" is factory
"G" may be loca
CFM is controlle
Max ESP includ
Brown
Brown
Communicating Thermostat will connect to the
COMM STAT (C R + -) power block PB3 in the air
handler. A 4-conductor, 20AWG wire will need to
connect from the TO ABC (C R + -) power block
(PB2) in the Air Handler to the ABC P7(See detail
‘A’ on schematic) connection on the ABC board in
the compressor section.
Communicating Thermostat
PB3
P9
C
R
(-)
C
P7
ABC
(+)
R
(-)
C
P6
ZONE
(+)
R
(-)
V+
P8
RS485
(+)
C
R
TX
TO ABC
CR+-
+5
C
ABC
P7
MOTOR
RX
+
Accessory 2 Output
Black
SW1
P4
RS485 NET
-
Black
1
ABC Control
Board in Split Unit
R
2
3
C 2
Detail ‘A’
C
Future Use
Acc 2 – Dip 4
SCT
Brown
Brown
OFF ON
1
Future Use
SUC P
C CO +5
P3 COND
Modbus Add. ID
P10
NOTE:3
C 3
Condensate
Overflow
STEPPER
C S +5
VS DATA
Green/Yellow
Not Used
White
Blower Motor
Current Transducer
P18
Blue
P17
2
HW
3
C 4
4
C PWM C X
VS PUMP
Grn
1
P2
P15
CT2
CT1
4 3 2 1
4
2
3
ECM
Blower
Motor
White
P5
CT2
CT1
4 3 2 1
C +5
ANA
8
C
ACC2
Leaving Air
Temperature LAT
K3
DH
Black
K2
Black
C
Orange
T
C
FP2 Sensor
9
Brown
10
P16
CT
TO COMM STAT
CR+-
Green
White
Red
Green
White
Red
Black
Black
PB2
Legend
Thermostat
Non-Communicating Thermostat will connect to the P1 connection on the ABC
board in the compressor section. A 4-conductor, 20AWG wire will need to connect
from the ABC P7 (See detail ‘A’ on schematic) connection to the TO ABC (C R + -)
power block (PB2) in the Air Handler.
Non-Communicating
Thermostat
LO
LO
R
R
C
C
O
O
G
G
Y1
Y1
Y2
Y2
W
W
DH
DH
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB1-L2 with red transformer wire.
2 – Low voltage wiring CLASS 2.
3 – DIP switch 1 on SW1 must be set in the OFF
position.
TS
L1
Thermal Limit Switch
G
FL
Light emitting diode - Green
Fused Limit
Breaker
P
1 2 3
Polarized connector
Field wire lug
Ground
PB SW1 -
N.O., N.C.
HE -
Power block
DIP package 4 position
Heater element
&XUUHQW7UDQVGXFHU
P1 ABC Board
21
SAH AIR HANDLER INSTALLATION MANUAL
Wiring Schematics cont.
SAH Air Handler Control Option C Schematic
FL1
HE1
97P903-02
TS1
Air Handler 5kW Electric Heat
Blue
Blue
RELAY
208-230/60/1
R1
1
White
L1
L2
2
3
G
Yellow
Blo
PB4
MO
Blue
02
White
Yellow
L1
02
PB1 L2
Blue
03
Auxiliary Heat
Current Transducer
Black
Blue
Black/White
L2
L2
L1
R
L1
04
C
Note:1
Transformer
Red
03
Grn/Yel
Yellow
04
24V
P11
Gray
K2
Black
Brown
DH
Brown
C
ANA
8
P5
CT2
CT1
4 3 2 1
C +5
7
C
AHB™
P1
6
5
Auxiliary Heat
Current Transducer
$XURUD$LU+DQGOHU%RDUG
1
2
3
Acc 2 – Dip 4
4
Acc 2 – Dip 5
5
P10
Communicating Thermostat will connect to the
COMM STAT (C R + -) power block PB3 in the air
handler. A 4-conductor, 20AWG wire will need to
connect from the TO ABC (C R + -) power block
(PB2) in the Air Handler to the ABC P7(See detail
‘A’ on schematic) connection on the ABC board in
the compressor section.
Communicating Thermostat
PB3
SCT
P9
C
R
(-)
C
P7
ABC
(+)
R
(-)
C
P6
ZONE
(+)
R
(-)
C
R
V+
P8
RS485
(+)
TX
TO ABC
CR+-
+5
C
ABC
P7
MOTOR
RX
+
Brown
SW1
P4
RS485 NET
-
Black
Brown
1
ABC Control
Board in Split Unit
R
Future Use
C 2
Detail ‘A’
C
OFF ON
1
Future Use
P12
Modbus Add. ID
C 3
Brown
STEPPER
C S +5
VS DATA
NOTE:3
C CO +5
P3 COND
Brown
Condensate
Overflow
Black
Blower Motor
Current Transducer
P18
Blue
Green/Yellow
P17
2
HW
3
C 4
4
C PWM C X
VS PUMP
Grn
1
P2
P15
CT2
CT1
4 3 2 1
4
2
3
ECM
Blower
Motor
Wires Not Used
Blue
ACC2
Status
G
9
Gray
SUC P
T
K3
Leaving Air
Temperature LAT
Orange
Facto
L-H s
"Aux
"G" m
CFM
Max
K1
C
Black
10
T
FP2 Sensor
C
CT
DIV
S
06
P16
C
DISCH
+5
P14
06
TO COMM STAT
CR+-
White
Green
White
Green
Red
Red
Black
Black
PB2
Legend
Thermostat
Non-Communicating Thermostat will connect to the P1 connection on the ABC
board in the compressor section. A 4-conductor, 20AWG wire will need to connect
from the ABC P7 (See detail ‘A’ on schematic) connection to the TO ABC (C R + -)
power block (PB2) in the Air Handler.
Non-Communicating
Thermostat
LO
LO
R
R
C
C
O
O
G
G
Y1
Y1
Y2
Y2
W
W
DH
DH
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB1-L2 with red transformer wire.
2 – Low voltage wiring CLASS 2.
3 – DIP switch 1 on SW1 must be set in the OFF
position.
TS
L1
Thermal Limit Switch
G
FL
Fused Limit
Breaker
P
1 2 3
Polarized connector
Field wire lug
Ground
PB SW1 -
N.O., N.C.
P1 ABC Board
Light emitting diode - Green
HE -
Power block
DIP package 4 position
Heater element
&XUUHQW7UDQVGXFHU
22
SAH AIR HANDLER INSTALLATION MANUAL
Wiring Schematics cont.
SAH Air Handler Control Option C Schematic
97P903-03
Yellow
Air Handler 10kW Electric Heat
Yellow
TS1
Yellow
HE2
Yellow
FL2
FL1
HE1
Blue
Blower P
Blue
Blue
208-230/60/1
Blue
R1
RELAY
RELAY
MODEL
R2
1
White
Brown
L2
G
M
022
3
026
PB4
030
Blue
Blue
036
Auxiliary Heat
Current Transducer
L1
White
PB1 L2
Yellow
Brown
Yellow
Blue
Blue
042
048
Grn/Yel
Yellow
Blue
Black/White
060
066
L2
L2
L1
R
Transformer
L1
Note:1
C
Black
Red
24V
K1
Gray
P11
Status
G
C
ACC2
T
AHB™
Auxiliary Heat
Current Transducer
$XURUD$LU+DQGOHU%RDUG
1
Future Use
2
3
4
Acc 2 – Dip 5
5
P10
Communicating Thermostat will connect to the
COMM STAT (C R + -) power block PB3 in the air
handler. A 4-conductor, 20AWG wire will need to
connect from the TO ABC (C R + -) power block
(PB2) in the Air Handler to the ABC P7(See detail
‘A’ on schematic) connection on the ABC board in
the compressor section.
Communicating Thermostat
PB3
SCT
P9
C
R
(-)
R
C
P7
ABC
(+)
(-)
C
P6
ZONE
(+)
R
(-)
C
R
V+
P8
RS485
(+)
TX
TO ABC
CR+-
+5
C
ABC
P7
MOTOR
RX
+
Brown
SW1
P4
RS485 NET
-
Black
Brown
1
ABC Control
Board in Split Unit
R
Future Use
Acc 2 – Dip 4
C 2
Detail ‘A’
C
OFF ON
1
P12
C CO +5
P3 COND
Brown
Brown
STEPPER
C S +5
VS DATA
NOTE:3
Modbus Add. ID
C 3
Condensate
Overflow
Black
Blower Motor
Current Transducer
P18
Blue
Green/Yellow
P17
2
HW
3
C 4
4
C PWM C X
VS PUMP
Grn
1
P2
2
3
ECM
Blower
Motor
P15
CT2
CT1
4 3 2 1
4
P1
6
5
C
7
P5
CT2
CT1
4 3 2 1
C +5
ANA
8
Orange
SUC P
Leaving Air
Temperature LAT
K3
DH
K2
Gray
DIV
S
C
P16
DISCH
+5
P14
Factory settin
L-H settings M
"Aux" is facto
"G" may be lo
CFM is contro
Max ESP inc
C
Black
10
Brown
Black
C
T
FP2 Sensor
9
CT
TO COMM STAT
CR+-
White
Green
White
Green
Red
Red
Black
Black
PB2
Legend
Non-Communicating Thermostat will connect to the P1 connection on the ABC
board in the compressor section. A 4-conductor, 20AWG wire will need to connect
from the ABC P7 (See detail ‘A’ on schematic) connection to the TO ABC (C R + -)
power block (PB2) in the Air Handler.
LO
Thermostat
L1
2
Non-Communicating
Thermostat
LO
R
R
C
C
O
O
G
G
Y1
Y1
Y2
Y2
W
W
DH
DH
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB1-L2 with red transformer wire.
2 – Low voltage wiring CLASS 2.
3 – DIP switch 1 on SW1 must be set in the OFF
position.
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
TS
L1
Thermal Limit Switch
G
FL
Light emitting diode - Green
Fused Limit
Breaker
P
1 2 3
Polarized connector
Field wire lug
Ground
PB SW1 -
N.O., N.C.
HE -
Power block
DIP package 4 position
Heater element
&XUUHQW7UDQVGXFHU
P1 ABC Board
23
SAH AIR HANDLER INSTALLATION MANUAL
Wiring Schematics cont.
SAH Air Handler Control Option C Schematic
97P903-04
Blue
Air Handler
15kW Electric Heat
Air H
Red
Black
Black
HE3
FL3
Yellow
HE2
FL2
FL1
HE1
TS1
TS2
RELAY
Yellow
Blue
R1
Blowe
Yellow
G
208-230/60/1
Circuit 2
Brown
Blue
Brown
5
3
H
5
3
H
4
1
H
SEQ2
4
1
H
SEQ1
1
White
2
MODEL
3
Blue
022
PB4
Blue
BRK2
L2
Blue
Red
026
Auxiliary Heat
Current Transducer
L1
Yellow
Black
030
Note:2
BRK1
208-230/60/1
Circuit 1
L2
Blue
036
Dual Power Supply Connections
G
L1
Yellow
Black
White
L1
PB1
Black
Red
L2
Blue
Brown
Grn/Yel
Blue
Yellow
Black/White
Blue
L2
L2
L1
L1
Transformer
R
C
Note:1
Red
K1
Gray
Status
G
AHB™
$XURUD$LU+DQGOHU%RDUG
1
2
3
4
Acc 2 – Dip 5
5
P10
Communicating Thermostat
PB3
SCT
HW
P9
C
R
(-)
R
C
P7
ABC
(+)
(-)
C
P6
ZONE
(+)
R
(-)
C
V+
P8
RS485
(+)
R
TX
TO ABC
CR+-
+5
C
ABC
P7
MOTOR
RX
+
Communicating Thermostat will connect to the
COMM STAT (C R + -) power block PB3 in the air
handler. A 4-conductor, 20AWG wire will need to
connect from the TO ABC (C R + -) power block
(PB2) in the Air Handler to the ABC P7(See detail
‘A’ on schematic) connection on the ABC board in
the compressor section.
SW1
P4
RS485 NET
-
Brown
1
ABC Control
Board in Split Unit
R
Future Use
Acc 2 – Dip 4
C 2
Detail ‘A’
C
OFF ON
1
Future Use
C 3
Brown
Black
Brown
STEPPER
C S +5
VS DATA
NOTE:4
Modbus Add. ID
C CO +5
P3 COND
Brown
Condensate
Overflow
Auxiliary Heat
Current Transducer
Black
Blower Motor
Current Transducer
P12
Blue
Green/Yellow
P18
2
P17
3
C 4
4
C PWM C X
VS PUMP
Grn
1
P2
2
3
ECM
Blower
Motor
P15
CT2
CT1
4 3 2 1
4
P1
6
5
C
7
P5
CT2
CT1
4 3 2 1
C +5
ANA
8
C
ACC2
T
SUC P
Leaving Air
Temperature LAT
K3
DH
K2
Gray
P11
C
Black
10
Orange
Black
C
T
FP2 Sensor
CT
9
Brown
DIV
S
C
P16
DISCH
+5
P14
24V
042
If two separate
circuits are used to supply power to the
auxiliary
heat kit, the Installer will need to verify that each leg of
048
the auxiliary heat circuit breakers are wired from the power
supply 060
correctly in order for the electric heat kit to operate
properly. This can be done by measuring the supply side
voltage066
of the auxiliary heat circuit breakers. Put a voltmeter on
the L2 side of Circuit Breaker One and on the L2 side of Circuit
Breaker Two. The voltmeter should read approximately 0 volts.
Factory s
If theL-H
meter
settin reads high voltage, the auxiliary heat breakers
need"Aux"
to be
is frewired so that breakers in the auxiliary heat kit
match
of the Disconnect Panel breakers. Meaning,
"G"the
maywiring
b
CFML2
is co
L1 and
from one breaker in the disconnect panel must
Max ESP
connect
to L1 and L2 at one of the auxiliary heat circuit
breakers and L1 and L2 from the other breaker in the
disconnect panel must connect to L1 and L2 of the other
auxiliary heat circuit breaker, making sure that the L1 and L2
from each disconnect breaker matches the L1 and L2 at each
of the auxiliary heat breakers.
TO COMM STAT
CR+-
White
Green
White
Green
Red
Red
Black
Black
PB2
Legend
Non-Communicating Thermostat will connect to the P1 connection on the ABC
board in the compressor section. A 4-conductor, 20AWG wire will need to connect
from the ABC P7 (See detail ‘A’ on schematic) connection to the TO ABC (C R + -)
power block (PB2) in the Air Handler.
Thermostat
LO
Non-Communicating
Thermostat
LO
R
R
C
C
O
O
G
G
Y1
Y1
Y2
Y2
W
W
DH
DH
P1 ABC Board
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB1-L2 with red transformer wire.
2 – Use manufacturer’s part number 19P592-01
(jumper bar assembly) when single source power is
required.
3 – Low voltage wiring CLASS 2.
4 – DIP switch 1 on SW1 must be set in the OFF
position.
24
TS
L1
Thermal Limit Switch
G
FL
Light emitting diode - Green
Fused Limit
Breaker
P
1 2 3
Polarized connector
Field wire lug
Ground
PB SW1 -
N.O., N.C.
HE -
Power block
DIP package 4 position
Heater element
&XUUHQW7UDQVGXFHU
SAH AIR HANDLER INSTALLATION MANUAL
Wiring Schematics cont.
SAH Air Handler Control Option C Schematic
Red
Black
Red
Black
Black
Yellow
TS1
HE3
FL3
HE2
FL2
FL4
FL1
AirAirHandler
20kW Electric Heat
Han
Black
HE4
HE1
Yellow
TS1
Yellow
Yellow
Brown
Blue
RELAY
R2
5
Blue
G
208-230/60/1
Circuit 2
1
R1
RELAY
White
H
3
4
Blue
Blue
Brown
5
H
SEQ2
2
3
Blue
H
SEQ1
1
4
Blower P
1
White
H
3
MODEL
BRK2
L2
Red
Red
022
Auxiliary Heat
Current Transducer
L1
Black
Black
Note:2
L2
BRK1
030
Black
Black
G
L1
026
Blue
Blue
Black
L1
White
PB1
Brown
Grn/Yel
Black
Blue
Red
L2
Blue
Yellow
Black/White
Blue
L2
L2
L1
L1
Transformer
R
C
Note:1
Red
K1
Dual Power Supply Connections
If two separate circuits are used to supply power to the
036 heat kit, the Installer will need to verify that each leg of
auxiliary
the auxiliary heat circuit breakers are wired from the power
042 correctly in order for the electric heat kit to operate
supply
properly. This can be done by measuring the supply side
048
voltage of the auxiliary heat circuit breakers. Put a voltmeter on
the L2
side of Circuit Breaker One and on the L2 side of Circuit
060
Breaker Two. The voltmeter should read approximately 0 volts.
If the
meter reads high voltage, the auxiliary heat breakers
066
need to be rewired so that breakers in the auxiliary heat kit
match the wiring of the Disconnect Panel breakers. Meaning,
Factory settin
L1
and L2 from one breaker in the disconnect panel must
L-H settings M
connect
to L1 and L2 at one of the auxiliary heat circuit
"Aux" is facto
breakers
"G" may beand
lo L1 and L2 from the other breaker in the
CFM is contr panel must connect to L1 and L2 of the other
disconnect
Max
ESP
inc
auxiliary heat circuit breaker, making sure that the L1 and L2
from each disconnect breaker matches the L1 and L2 at each
of the auxiliary heat breakers.
ACC2
Status
G
9
ANA
8
P5
CT2
CT1
4 3 2 1
C +5
7
C
AHB™
P1
6
5
Auxiliary Heat
Current Transducer
$XURUD$LU+DQGOHU%RDUG
P2
1
2
3
4
Acc 2 – Dip 5
5
P10
PB3
SCT
HW
P9
C
R
(-)
R
C
P7
ABC
(+)
(-)
C
P6
ZONE
(+)
R
(-)
C
V+
P8
RS485
(+)
R
TO ABC
CR+-
TX
ABC
P7
+5
C
P4
+
Communicating Thermostat
SW1
MOTOR
RX
RS485 NET
-
Communicating Thermostat will connect to the
COMM STAT (C R + -) power block PB3 in the air
handler. A 4-conductor, 20AWG wire will need to
connect from the TO ABC (C R + -) power block
(PB2) in the Air Handler to the ABC P7(See detail
‘A’ on schematic) connection on the ABC board in
the compressor section.
1
ABC Control
Board in Split Unit
R
Future Use
Acc 2 – Dip 4
C 2
Detail ‘A’
C
OFF ON
1
Future Use
C 3
Brown
Brown
STEPPER
C S +5
VS DATA
NOTE:4
Modbus Add. ID
C CO +5
P3 COND
Brown
Condensate
Overflow
Black
Brown
Blower Motor
Current Transducer
P12
Blue
Green/Yellow
P18
2
P17
3
C PWM C X
VS PUMP
4
C 4
1
Grn
Black
P15
CT2
CT1
4 3 2 1
4
2
3
ECM
Blower
Motor
SUC P
Gray
C
Orange
K3
DH
Gray
P11
Black
K2
T
C
Leaving Air
Temperature LAT
Black
10
T
C
FP2 Sensor
DIV
S
C
P16
CT
DISCH
+5
P14
24V
Brown
M
PB4
Blue
208-230/60/1
Circuit 1
97P903-05
TO COMM STAT
CR+-
White
Green
White
Green
Red
Red
Black
Black
PB2
Legend
Thermostat
Non-Communicating Thermostat will connect to the P1 connection on the ABC
board in the compressor section. A 4-conductor, 20AWG wire will need to connect
from the ABC P7 (See detail ‘A’ on schematic) connection to the TO ABC (C R + -)
power block (PB2) in the Air Handler.
Non-Communicating
Thermostat
LO
LO
R
R
C
C
O
O
G
G
Y1
Y1
Y2
Y2
W
W
DH
DH
P1 ABC Board
Factory Low voltage wiring
Factory Line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
DC Voltage PCB traces
Internal junction
Quick connect terminal
Notes:
1 – To operate in 208V mode replace the blue transformer
wire connected to PB1-L2 with red transformer wire.
TS
2 – Use manufacturer’s part number 19P592-01
(jumper bar assembly) when single source power is
required.
3 – Low voltage wiring CLASS 2.
4 – DIP switch 1 on SW1 must be set in the OFF
position.
25
L1
Thermal Limit Switch
G
FL
Light emitting diode - Green
Fused Limit
Breaker
P
1 2 3
Polarized connector
Field wire lug
Ground
PB SW1 -
N.O., N.C.
HE -
Power block
DIP package 4 position
Heater element
&XUUHQW7UDQVGXFHU
SAH AIR HANDLER INSTALLATION MANUAL
SAH 5 Speed ECM Blower Performance Data Option A
Blower Performance 5 Speed ECM Control Option A
Model
022
026
030
036
042
048
060
066
Motor
Speed
Motor
Tap
T’stat
Connection
High
Med High
5
4
W
Y2*
Med
Med Low
Low
3
2
1
Y1
G
High
Med High
5
4
W
Y2*
Med
Med Low
Low
3
2
1
Y1
G
High
Med High
5
4
W
Y2*
Med
Med Low
Low
3
2
1
Y1
G
High
Med High
Med
5
4
3
W
Y2*
Y1
Med Low
Low
2
1
G
High
Med High
5
4
W
Y2*
Med
Med Low
Low
3
2
1
Y1
G
High
Med High
5
4
W
Y2*
Med
Med Low
Low
3
2
1
Y1
G
High
Med High
5
4
W
Y2*
Med
Med Low
Low
3
2
1
Y1
G
High
Med High
Med
5
4
3
W
Y2*
Y1
Blower
Size
9x7
9x7
9x7
10 x 8
11 x 10
11 x 10
11 x 10
Motor
HP
Airflow (cfm) at External Static Pressure (in. wg)
0
0.05
0.10
1/2
1130
1040
950
860
740
1115
1025
935
845
720
1/2
1130
1040
950
860
740
0.20
0.25
0.30
0.40
0.45
0.50
0.60
0.70
0.80
0.90
1.00
1100
1010
920
830
700
1090 1080
1000 990
905 890
815
800
680 660
1065
975
875
785
645
1050 1040 1030
960 945 930
860 845 830
770
755 740
630 605 580
1015
915
815
720
540
1000
900
800
700
500
980
880
760
660
460
950
850
730
590
-
-
-
-
1115
1025
935
845
720
1100
1010
920
830
700
1090 1080
1000 990
905 890
815
800
680 660
1065
975
875
785
645
1050 1040 1030
960 945 930
860 845 830
770
755 740
630 605 580
1015
915
815
720
540
1000
900
800
700
500
980
880
760
660
460
950
850
730
590
-
-
-
-
1/2
1220
1130
1040
950
790
1205
1115
1030
935
770
1190
1100
1020
920
750
1180 1170
1090 1080
1005 990
905 890
735
720
1160
1070
975
875
700
1150 1140 1130
1060 1045 1030
960 945 930
860 845 830
680 660 640
1115
1015
915
815
620
1100
1000
900
800
600
1050
980
890
770
530
930
950
850
730
500
-
-
-
1/2
1450
1350
1170
1000
990
1435
1335
1150
980
915
1420
1320
1130
960
840
1405
1305
1115
940
800
1390
1290
1100
920
760
1375
1275
1080
905
730
1360 1345 1330
1260 1245 1230
1060 1045 1030
890 870 850
700 680 660
1315
1215
1015
825
630
1300
1200
1000
800
600
1270
1170
960
760
520
1250
1140
920
710
470
1210
1100
880
650
430
-
-
1
1960
1790
1700
1630
1490
1945
1775
1685
1560
1445
1930
1760
1670
1600
1400
1915 1900
1745 1730
1650 1630
1520 1560
1375 1350
1880
1710
1615
1535
1325
1860 1845 1830
1690 1670 1650
1600 1575 1550
1510 1490 1470
1300 1270 1240
1810
1535
1525
1445
1210
1790
1420
1500
1420
1180
1750
1560
1450
1370
1120
1700
1500
1400
1300
1000
1660
1450
1350
1250
930
-
-
1945
1775
1685
1560
1445
1930
1760
1670
1600
1400
1915 1900
1745 1730
1650 1630
1520 1560
1375 1350
1880
1710
1615
1535
1325
1860 1845 1830
1690 1670 1650
1600 1575 1550
1510 1490 1470
1300 1270 1240
1810
1535
1525
1445
1210
1790
1420
1500
1420
1180
1750
1560
1450
1370
1120
1700
1500
1400
1300
1000
1660
1450
1350
1250
930
1600
1450
1350
1250
930
-
1
1960
1790
1700
1630
1490
2210 2230 2190 2194 2170
2030 2073 2000 2035 1970
1850 1931 1820 1889 1790
1770 1796 1740 1761 1710
1570 1661 1540 1616 1510
2155
1995
1850
1718
1573
2130
1940
1760
1680
1460
2120 2100 2087 2060 2020
1958 1910 1922 1870 1840
1812 1730 1774 1680 1640
1682 1630 1651 1590 1560
1533 1420 1495 1370 1320
2000
1800
1600
1500
1250
1960
1760
1560
1450
1200
1920 1890
1720 1680
1510 1450
1400 1340
1100 1020
2340 2371 2320 2328 2290 2289 2270 2230 2200
2160 2166 2140 2129 2100 2094 2070 2040 2000
1980 2030 1950 1996 1900 1965 1880 1840 1800
1800 1898 1770 1862 1730 1828 1690 1640 1600
1720 1696 1680 1656 1640 1625 1600 1550 1500
2170
1960
1760
1570
1460
2140 2100
1940 1890
1720 1680
1510 1460
1400 1380
1/10/17
1
2390 2454
2210 2248
2030 2115
1860 1985
1780 1784
2370
2180
2010
1830
1750
0.15
2414
2205
2072
1939
1742
0.35
11 x 10
1
Med Low
2
Low
1
G
Factory speed settings are in Bold
Air flow values are with dry coil and standard filter
For wet coil performance first calculate the face velocity of the air coil (Face Velocity [fpm] = Airflow [cfm] / Face Area [sq ft]).
Then for velocities of 200 fpm reduce the static capability by 0.03 in. wg, 300 fpm by 0.08 in. wg, 400 fpm by 0.12in. wg., and 500 fpm by 0.16 in. wg.
Highest setting is for auxiliary heat (W) and lowest setting is for constant blower (G). The “Y1” and “Y2” settings must be between the “G” and “W” settings.
*Single speed compressor section units will need to remove the TAN wire on the 5 speed motor and replace it with the RED wire. Tape end and secure the
TAN wire.
The SAH Air Handler blower is factory
ctory wired for dual speed compressor section operation.
26
-
SAH AIR HANDLER INSTALLATION MANUAL
SAH 5 Speed ECM Blower Performance Data Option A cont.
5-Speed ECM Constant Torque Motors
Setting Blower Speed - 5-Speed ECM
The 5-Speed ECM is a 'Constant Torque' ECM motor and
delivers air flow similar to a PSC but operates as efficiently
as an ECM Motor. Because it's an ECM Motor, the 5-Speed
ECM can ramp slowly up to down like the ECM motor. There
are 5 possible speed taps available on the 5-Speed ECM
motor with #1 being the lowest airflow and #5 being the
highest airflow. These speed selections are preset at the
time of manufacture and are easily changed in the field if
necessary.
5-Speed ECM blower motors have five (5) speeds of which
three (3) are selectable on single speed and four (4) are
selectable on dual capacity.
Caution: Disconnect all power before
performing this operation.
5-Speed ECM Motor Connections Single Speed Splits
High Voltage
Connections
3/16 in.
If more than one tap are energized at the same time, built
in logic gives precedence to the highest tap number and
allows air flow to change with G, Y1, Y2 and W signals. Each
of those 5 speeds has a specific 'Torque' value programmed
into the motor for each speed selection. As static pressure
increases, airflow decreases resulting in less torque on the
rotor. The motor responds only to changes in torque and
adjusts its speed accordingly.
C
C - Black
N
N - Brown
G - Blue
1
Y1 - Red
2
3
4
5
AUX - Gray
Low Voltage
Connections 1/4 in.
5-Speed ECM Motor Connections Dual Capacity Splits
5-Speed ECM Benefits:
•
G
L - Orange
G - Green
The 5-Speed ECM motor is powered by line voltage but the
motor speed is energized by 24 VAC.
•
•
•
•
L
High Voltage
Connections
3/16 in.
High Efficiency
Soft Start
5 speeds with up to 4 speeds on-line
Built-in logic allows air flow to change with G, Y1, Y2
and W signals
Super efficient low airflow continuous blower setting.
C
C - Black
L
G
N
N - Brown
L - Orange
G - Green
G - Blue
Y1 - Red
27
1
2
3
4
Low Voltage
Connections 1/4 in.
5
AUX - Gray
Y2 - Tan
SAH AIR HANDLER INSTALLATION MANUAL
Blower Performance Data Option C
Blower Performance Variable Speed ECM Control Option C
MODEL
MAX ESP
022
0.50
400
026
0.50
400
030
0.50
036
0.50
550
650
042
0.75
650
750
1
2
400
3
500
G
500
G
500
G
700
G
800
4
600
L
600
600
800
900
G
900
G
5
700
700
L
700
L
850
1000
AIR FLOW SPEED SETTINGS
6
7
8
800
1000
900
H
Aux
900
1000
800
H
Aux
900
1000
800
H
Aux
950
900
1050
L
1200
1150
1300
L
1300
1150
1200
L
1650
1800
1700
L
H
1650
1700
1800
L
9
10
1100
1200
1100
1200
1100
1200
1100
H
1400
H
11
1200
1300
Aux
1500
1600
1500
1000
1400
750
800
1600
H
2000
1100
060
0.75
1350
1500
950
1200
2100
2200
Aux
G
2000
2100
1100
1350
1500
066
0.75
2200
950
1200
H
Aux
G
Factory settings are at recommended G-L-H-Aux speed settings
L-H settings MUST be located within boldface CFM range
“Aux” is factory setting for auxiliary/emergency heat and must be equal to or above the “H” setting as well as at least the minimum required for the auxiliary
heat package
“G” may be located anywhere within the airflow table
CFM is controlled within 5% up to the maximum ESP
Max ESP includes allowance for wet coil.
048
0.75
650
28
12
1700
Aux
1700
Aux
1/10/17
SAH AIR HANDLER INSTALLATION MANUAL
Blower Performance Data Option C cont.
IntelliZone2 Zoning Compatibility
(Optional IntelliZone2 Communicating Zoning)
SAH Control Option C AHB Board
The SAH Air Handler with the 'Advanced' control option
expands on the capability of the Aurora 'Advanced' Control
(ABC and AXB) in the compressor section, by adding the
AHB board in the air handler.
A dedicated input to connect and communicate with the
IntelliZone2 (IZ2) zoning system is provided on P7 on the
AHB and AXB. This is a dedicated communication port using
a proprietary ModBus protocol. An AXB in the compressor
section or an AHB in the air handler is required. Consult the
Intellizone2 literature for more information.
NOTE: The Energy Monitoring and Leaving Air
Temperature features at the AHB board are dependent on
the AXB board in the compressor section.
Communicating Digital Thermostats
The Aurora controls system also features either monochromatic or color touch screen graphic display thermostats
for user interface. These displays not only feature easy to use
graphical interface but display alerts and faults in plain English.
Many of the features discussed here may not be applicable
without these thermostats.
It is highly recommended that the installing/servicing
contractor use an Aurora Interface and Diagnosic Tool
(AID) when installing and servicing an Aurora 'Advanced'
control system.
The AHB board includes the following features:
Energy Monitoring (AXB Board Required in
Compressor Section)
(Standard Sensor Kit on ‘Advanced’ models)
AHB DIP Switch
DIP 1 - ID: This is the AHB ModBus ID and should always
read Off.
DIP 2 & 3 - Future Use
DIP 4 & 5 - Accessory Relay2: A second, DIP configurable,
accessory relay is provided that can be cycled with the
compressor 1 or 2 , blower, or the Dehumidifier (DH)
input. This is to complement the Accessory 1 Relay on
the ABC board.
Position
1
DIP 4
ON
DIP 5
ON
2
OFF
ON
3
ON
OFF
4
OFF
OFF
The Energy Monitoring Kit includes two current transducers
(blower and electric heat) so that the complete power usage
of the air handler can be measured. The AID Tool provides
configuration detail for the type of blower motor, power
adjustment and a line voltage calibration procedure to
improve the accuracy. The information can be displayed on
the AID Tool or selected communicating thermostats. The
TPCM32U03A(*)/04A(*) will display instantaneous energy
use while the color touchscreen TPCC32U01(*) will in addition
display a 13 month history in graph form. Refer to Compressor
Section Start Up Energy Monitoring for configuration details.
Description
Cycles with Fan or ECM (or G)
Cycles with CC1 first stage of compressor
or compressor spd 1-6
Cycles with CC2 second stage of
compressor or compressor spd 7-12
Cycles with DH input from ABC board
Freeze Detection (Air Coil) – uses the FP2 input to protect
against ice formation on the air coil. The FP2 input will
operate exactly like FP1 except that the set point is 30
degrees and is not field adjustable.
Condensate Overflow – fault is recognized when the
impedance between this line and 24 VAC common or
chassis ground drops below 100K ohms for 30 seconds
continuously.
AWL – Aurora Weblink
(optional accessory)
AWL is an add-on WiFi router that connects to the ABC
and offers many features:
•
Remote access to thermostat settings, schedules, etc.
with your smartphone, tablet or laptop
•
Receive Lockout/Fault info via text or e-mail
•
View heat pump energy usage from the Internet for the
day, week, month, year or real-time
•
Internet AID Tool capability allows remote
troubleshooting for the technician
•
Remote AID Tool capability at the heat pump with
smartphone, tablet or laptop for the technician
•
Allows data acquisition of the heat pump through
the Internet, see graphs of performance and chart
historical data for the technician
•
Stores historical data on SD card
Leaving Air Temperature (AXB Board Required in
Compressor Section)
A leaving air temperature (LAT) thermistor is located near the
blower inlet and can be read via the AID tool or AWL.
Electric Heat Staging
The AHB board provides two stages of auxiliary heat operation.
During normal operation, the first stage of electric heat is
energized 10 seconds after the W command is received. If the
demand continues the second stage is of electric heat will be
energized after 5 minutes. In an Emergency heat operation the
time delay between stage one and stage two will be 2 minutes.
29
SAH AIR HANDLER INSTALLATION MANUAL
Blower Performance Data Option C cont.
Setting Blower Speed - Variable Speed
ECM
ECM Speed Setup - These screens allow the technician to
select the “G”, low, high, and auxiliary heat blower speed for
the ECM blower motor. Change the highlighted item using
the ▲ and ▼ buttons. Press the ◙ button to select the speed.
The ABC board’s Yellow Config LED will flash the current
ECM blower speed selections for “G”, low, and high
continuously with a short pause in between. The speeds
can also be confirmed with the AID Tool under the Setup/
ECM Setup screen. The Aux will not be flashed but can be
viewed in the AID Tool. The ECM blower motor speeds can
be field adjusted with or without using an AID Tool.
ECM Speed Info
ECM Setup without an AID Tool
Option ◀▶
The blower speeds for “G”, Low (Y1), High (Y2), and Aux
can be adjusted directly at the Aurora ABC board which
utilizes the push button (SW1) on the ABC board. This
procedure is outlined in the ECM Configuration Mode
portion of the Aurora ‘Base’ Control System section. The
Aux cannot be set manually without an AID Tool.
3
6
9
10
Selecting YES will enter ECM
speed setup, while selecting NO
will return to the previous screen.
Yes
Option ◀▶
Enter ◙
Option ◀▶
ECM Speed Info
1
2G
3
Lo
4
5
6
Hi
7
8
9
▶10
11
12
Enter ◙
Option ◀▶
Cooling Airflow Setup
Cooling Airflow Setup
--- ECM Only --The airflow will be
adjusted by the chosen
amount in cooling mode.
--- ECM Only --The airflow will be
adjusted by the chosen
amount in cooling mode.
Adjustment:
-15%
Adjustment:
-15%
Want To Change?
Yes
Option ◀▶
Want To Change?
Option ◀▶
Enter ◙
ECM Speed Info
1
2G
3
Lo
4
5
▶ 6
◀ Hi
7
8
9
10
11
12
◀ Aux
Enter ◙
Cooling Airflow Setup - These screens allow the technician
to select -15%, -10%, -5%, None or +5%. Change the
adjustment percentage using the ▲ and ▼ buttons. Press
the ◙ button to save the change.
A much easier method utilizes the AID Tool to change
the airflow using the procedure below. First navigate to
the Setup screen and then select ECM Setup. This screen
displays the current ECM settings. It allows the technician
to enter the setup screens to change the ECM settings.
Change the highlighted item using the ◀ and ▶ buttons and
then press the ◙ button to select the item.
Blower Only Speed
Lo Compressor
Hi Compressor
Aux Heat
1
2G
▶ 3 ◀ Lo
4
5
6
7
8
9
10
11
12
After the auxiliary heat speed setting is selected the AID
Tool will automatically transfer back to the ECM Setup screen.
ECM Setup with an AID Tool
ECM Speed Info
ECM Speed Info
1
▶ 2 ◀G
3
4
5
6
7
8
9
10
11
12
No
Enter ◙
30
No
Enter ◙
Change ▼▲
Enter ◙
SAH AIR HANDLER INSTALLATION MANUAL
Unit Start Up
• Check that supply voltage matches nameplate data.
• Fuses, breakers and wire size are correct.
• Confirm that the 15kW or 20kW auxiliary heat kit
is wired correctly (see "Electrical Data" section if
applicable).
• Low voltage wiring is complete.
• Piping is complete and water system is cleaned
and flushed.
• Air is purged from the closed loop system.
• Isolation valves are open, water control valves or pumps
are wired.
• Condensate line is open and correctly pitched.
• Transformer switched to 208v if applicable.
• DIP switches are set correctly.
• Blower rotates freely.
• Blower speed is correct.
• Air filter/cleaner is clean and in position.
• Service/access panels are in place.
• Return air temperature is between 50-80°F heating and
60-95° cooling.
• Check air coil cleanliness to insure optimum performance.
Clean as needed according to maintenance guidelines.
To obtain maximum performance the air coil should be
cleaned before startup. A 10 percent solution of
dishwasher detergent and water is recommended for
both sides of coil. A thorough water rinse should follow.
Ethernet Cable
A 100 foot Cat6 Ethernet cable is shipped with the air handler in the 985506-01 SAH Installation Kit. This cable can be
plugged into the backside of the Ethernet port located on
the top panel of the air handler. The cable then can be routed and connected into the AID Tool port on the compressor
section. The installer will then be able to plug the AID Tool
into the Ethernet port on the air handler giving him control
of the compressor section. If the compressor section is connected to Symphony, the Ethernet cable would connect to
the AID Tool port on the back of the Symphony router. If the
installer was using the AID Tool and the compressor section
equipped with Symphony, the Ethernet cable from the air
handler would need to be unplugged, and replaced with the
AID Tool cable. The maximum Cat6 cable length should be
kept to 150ft or less.
Powering The Controls For Control
Option C
Initial Configuration of the Unit
Before operating the unit, apply power and complete the
following Aurora Startup procedure for the controls configuration. An AID Tool is recommended for setup, configuration and troubleshooting, especially with an Aurora
'Advanced' Control. AID Tool version 2.06 or greater is
necessary for AHB setup.
Maintenance Filters
1. Confirm that Dipswitch 1 on SW1 on the AHB board is
set in the OFF position.
2. Configure Aurora Screen
a. In advanced controls - Confirm AHB is added and
communicating.
b, In advanced controls - If using a communicating
thermostat confirm the communicating thermostat is added
and communicating. Set thermostat mode to off.
c. In advanced controls - Confirm IntelliZone2, if installed, is added and communicating. Set Zoning system to
off mode.
3. Aurora Setup Screen
a. ECM Setup for Heating Airflow - select "G", low, high
and aux blower speeds as appropriate for the unit and electric heat.
b. Cooling Airflow % - sets the cooling airflow % from
heating airflow. Factory setting is -15%.
Filters must be clean to obtain maximum performance.
They should be inspected monthly under normal operating
conditions and be replaced when necessary. Units should
never be operated without a filter. Always replace the filter
with the same type as originally furnished.
Condensate Drain
In areas where airborne bacteria produce slime in the drain
pan, it may be necessary to treat chemically to minimize
the problem. The condensate drain can pick up lint and dirt,
especially with dirty filters.
Blower Motors
The ECM motors are equipped with sealed ball bearings and
requires no periodic lubrication.
Air Coil
See Compressor Section installation manual for more control instructions.
The air coil must be cleaned to obtain maximum performance. Check once a year under normal operating conditions and, if dirty, brush or vacuum clean. Care must be
taken not to damage the aluminum fins while cleaning.
Caution: Fin edges are sharp.
31
SAH AIR HANDLER INSTALLATION MANUAL
Dimensional Data - DX Air Handler
Top Flow/Horizontal Unit Configuration
VIEW
TOPTOP
VIEW
3-6 TON
CC
BB
BOTTOM
BOTTOM VIEW
R.SIDE
VIEW
2 TON
R.SIDE
VIEW
2 TON
HH
DD
QQ
X
EE
AA
W
Z
Y
V
FF
U
RIGHT SIDE VIEW
RIGHT
3-6SIDE
TON VIEW
FRONTVIEW
VIEW
FRONT
GG
PP
NN
F
TOP VIEW
TOP
VIEW 22 TON
TON
C
D
E
O
N
M
JJ
L
LL
J K
MM
H
KK
P
B
Q
R
S
T
A
SAH Air Handler - Topflow/Horizontal
Topflow/
Horizontal
Configuration
D
A
B
C
Width Depth Height
024
Refrigerant
Connections
Overall Cabinet
E
3/4" cond 1/2" cond
Power
Supply
F
H
J
K
Low
Voltage
L
M
024 CABINET DIMENSIONS ONLY
N
O
P
Q
R
S
T
U
V
W
X
Suction Liquid
Y
Z
Power Supply
AA
BB
CC
DD
EE
FF
GG
HH
in.
17.5 21.2
47.0
42.6
45.1
2.5
1.9
4.8
6.4
8.8
10.1
1.1
1.7
2.9
4.5
13.0
14.6
16.2
2.1
13.3
2.1
18.4
1.7
3.1
4.1
1.1
14.0
1.8
14.0
1.8
43.9
44.5 53.8
119.4
108.2
114.6
6.4
4.8
12.2
16.3
22.4
25.7
2.8
4.3
7.4
11.4
33.0
37.1
41.1
5.3
33.8
5.3
46.7
4.3
7.9
10.4
2.8
35.6
4.6
35.6
4.6
111.5 13.0
036
in.
cm.
21.6 21.2
54.9 53.8
52.0
132.1
50.1
127.3
47.6
120.9
2.6
6.6
1.9
4.7
4.8
12.1
6.4
16.3
8.5
21.6
9.7
24.6
1.1
2.8
1.7
4.4
2.9
7.3
4.5
11.4
16.7
42.4
18.3
46.5
20.1
51.1
2.2
5.5
17.2
43.8
2.2
5.6
18.5
46.9
1.6
4.1
4.2
10.5
6.7
16.9
1.2
3.0
14.0
35.5
3.8
9.6
14.0
35.5
1.9
4.8
048-060
in.
cm.
24.9 21.2
63.2 53.8
58.0
147.3
56.1
142.5
53.2
135.1
2.6
6.6
1.9
4.8
4.8
12.2
6.4
16.3
9.6
24.4
10.8
27.4
1.1
2.8
1.7
4.3
2.9
7.4
4.5
11.4
20.3
51.6
21.9
55.6
23.5
59.7
2.2
5.6
20.6
52.3
2.2
5.6
18.4
46.7
1.7
4.3
4.2
10.7
6.7
17.0
1.5
3.8
18.0
45.7
3.4
8.6
18.0
45.7
1.8
4.6
" Y" IS 1 3/8 KNOCKOUT HIGH VOLTAGE
"Z" IS 1 1/8 KNOCKOUT HIGH VOLTAGE
"AA" IS 7/8 KNOCKOUT LOW VOLTAGE
32
KK
LL
MM
NN
PP QQ
42.6
45.1
2.5
10.5 108.2 114.6
6.4
POWER SUPPLY
cm.
Condensate is plastic 3/4" FPT
Discharge flange is field installed and extends 1" (25.4 mm) from cabinet
JJ
Low
Voltage
5.1
3.0
4.4
1.7
7.6 11.2 4.2
4.2
SAH AIR HANDLER INSTALLATION MANUAL
Dimensional Data - DX Air Handler
Bottom Flow Unit Configuration
LEFT SIDE VIEW
LEFT3-6
SIDE
TONVIEW
LEFT
LEFTSIDE
SIDE VIEW
VIEW
22TON
TON UNIT
UNIT
FRONT
FRONT VIEW
VIEW
B
R
Q
P
O
N
M
C
L
K
J
DD
I
H
F
G
BB
CC
D
E
AA
A
F
TOP VIEW
TOP
VIEW
BOTTOMVIEW
VIEW
BOTTOM
W
X
Z
T
V
S
Y
U
SAH Air Handler - Bottom flow
Overall Cabinet
Bottomflow
Configuration
D
A
B
C
Width Depth Height
024
036
048-060
in.
cm.
in.
cm.
17.5
44.5
21.5
54.6
21.2
53.8
21.2
53.8
47.0
119.4
52.0
132.1
E
F
1/2" cond 3/4" cond
G
Low
Voltage
Power
Supply
Power
Supply
4.4
11.2
4.4
11.2
1.9
4.8
1.9
4.8
2.5
6.4
2.6
6.6
22.8
57.9
22.8
57.9
H
25.7
65.3
25.7
65.3
I
27.3
69.3
27.3
69.3
Refrigerant
POWER SUPPLY 024
Connections
ONLY
J
K
Suction
Liquid
29.5
74.9
29.3
74.5
30.8
78.2
30.6
77.7
L
M
N
O
P
Q
R
S
T
U
V
W
X
Y
1.1
2.8
1.1
2.7
1.7
4.3
1.7
4.3
2.8
7.1
2.8
7.2
4.5
11.4
4.5
11.4
13.0
33.0
16.6
42.2
14.5
36.8
18.2
46.3
16.2
41.1
20.1
51.1
1.1
2.8
1.2
3.0
1.8
4.6
3.8
9.7
14.0
35.6
14.0
35.6
18.0
45.7
14.0
35.6
2.2
5.6
2.2
5.6
2.2
5.6
2.2
5.6
13.7
34.8
17.3
43.8
Z
BB
CC
DD
18.5 5.0 3.1
47.0 12.7 7.9
18.5
46.9
1.8
4.6
4.3
11.0
in.
24.9 21.2
58.0
4.4
1.9
2.6
24.0
27.0
28.5
31.3
32.8
1.1
1.7
2.8
4.5
20.2
21.9
23.5
1.2
3.4
18.0
18.0
2.1
2.2
20.5
18.5
cm.
63.2 53.8
147.3
11.2
4.8
6.6
61.0
68.6
72.4
79.5
83.3
2.8
4.3
7.1
11.4
51.3
55.6
59.7
3.0
8.6
45.7
45.7
5.3
5.6
52.1
47.0
Condensate is plastic 3/4" FPT
Discharge flange is field installed and extends 1" (25.4 mm) from cabinet
33
AA
SAH AIR HANDLER INSTALLATION MANUAL
Replacement Procedures
Obtaining Parts
In Warranty Material Return
When ordering service or replacement parts, refer to the
model number and serial number of the unit as stamped on
the serial plate attached to the unit. If replacement parts are
required, mention the date of installation of the unit and the
date of failure, along with an explanation of the malfunctions
and a description of the replacement parts required.
Material may not be returned except by permission of authorized warranty personnel.
Service Parts
SAH Air Handler Refrigerant Models
Part Description
022
Air Coil
026
030
61P740-41
036
042
048
060
066
61P738-41
61P747-41
61P737-41
33P626-02
33P626-03
33P626-04
54S562-03
54S563-05
54S563-06
54S563-07
Refrigeration
TXV
Blower Assembly
5 Speed
ECM Motor
& Blower/
Control
Option A
ECM Blower Housing
ECM Motor 208-230/60/1
33P626-01
54S561-03
54S561-04
53P529-01
14S562-01
53P528-01
14S562-02
ECM Power Harness
Electrical
Control
Option A
Electrical
Control
Option C
14S563-01
14S563-02
14S563-03
11P810-05
ECM Control Harness
Variable
Speed
ECM Motor
& Blower/
Control
Option C
14S562-03
53P526-01
11P811-05
Blower Assembly
54S561-01
54S562-02
ECM Blower Housing
53P529-01
53P528-01
ECM Motor 208-230/60/1
14S558-01
14S558-02
ECM Power Harness
11P922-01
ECM Control Harness
11P940-01
Terminal Board
12P561-01
Transformer 75VAC
15P501B01
Power Block
12P501A02
Ground Lug
12P004A
AHB Board
17X558-01
Transformer 100VAC
15P519-01
Power Block
12P501A02
Ground Lug
12P004A
Condensate Sensor
12P504A01
FP2 Sensor
12P550-01
Leaving Air Thermistor
12P555-06
Current Transducer(s)
12P557-01
4 Pole Low Voltage Block
12P570-01
Misc.
Cat6 Ethernet Cable (100')
11P951-01
13P725-05
5kW
Limit
Auxiliary Heat
Fused Backup
13P735-02
13P725-05
10kW
Limit
Auxiliary Heat
Fused Backup
13P735-01
15kW
Limit
13P725-05
Auxiliary
Limit DPST
13P734-01
Heat
Fused Backup
13P735-02
20 kW
Limit DPST
13P734-01
Auxiliary Heat
Fused Backup
13P735-02
54S563-01
54S563-02
53P526-01
14S559-01
14S559-02
1/31/2017
34
SAH AIR HANDLER INSTALLATION MANUAL
Revision Guide
Pages:
15-20
All
Description:
Date:
By:
Updated Wiring Schematics
02 May 2017
MA
Document Creation
01 Mar. 2017
JM
35
IM2518AG1
05/17
Product:
Type:
Size:
Document:
Standard Series Air Handler
R-410A
2-6 Tons
Installation Manual
©2017 The manufacturer has a policy of continual product research and development and reserves the right to change design and specifications without notice.