Residential Gas Hydronic Heating System
Homeowner’s Book
and Installation Manual
QVM9 Series
Models : 090W1-NG/125W1-NG/150W1-NG
CONFORMS TO ANSI Z21.10.3-1998
CONFORMS TO CSA 4.3-M98
Residential Gas Hydronic Heating System
QVM-9
SERIES
CONDENSING
GAS
BOILERS
FIRST YEAR
Limited Warranty for Condensing Gas Boilers
(All Residential Commercial boilers)
(Includes Space Heating Domestic Water ‘Combo’ Heating Applications)
therefore any malfunction or damage to other parts or components
resulting from these buildups in the plate heat exchanger is not
covered under the terms of this warranty.
Quietside Corporation warrants that its combo boilers are free from
defects in materials and workmanship for one year from the date of
installation. If any parts are found to be defective in manufacture,
Quietside Corporation will provide replacement of such defective
parts.
This Warranty Does Not Cover:
1. Installations by other than qualified heating contractors.
2. Installations of equipment for other purposes than those intended by the
instructions supplied with this equipment.
3.Installations of equipment for purposes other than residential space heating
and domestic hot water production.
4.Any product which is improperly installed or moved from its original place of
installation.
5.Any product, which has been repaired or replaced with other than Quietside
factory parts.
6.Any product modified in any way, misused or damaged or which as been used
contrary to warrantor’s written instructions.
7.Any damage resulting from use of anti-freeze solutions added to the heating
water or combustion air drawn from interior spaces.
8.Any damage to the product caused by failure to maintain the unit properly,
improper voltage, improper gas pressure, improper water pressure, flood,
fire, lightning, or Acts of God.
9. Nicks, scratches or discoloration of decorative finishes.
10.Installation, plumbing , gas piping and wiring not integral to the product.
11. This warranty does not covered and expenses related to the removal or reinstallation process. The homeowner will be responsible for the cost of
removing and re-installing the alleged defective part or its replacement and
all labor and material connected therewith, and transportation to and from
Quietside Corporation.
12. The warranty cannot be considered as a guarantee of workmanship of an
installer connected with the installation of the condensing boiler, or as
imposing a liability of any nature for unsatisfactory performance as a result
of faulty workmanship in the installation, which liability is expressly
disclaimed.
SECOND THROUGH THE TENTH YEAR
Limited Warranty for Primary Heat Exchangers
(Residential Boilers Only)
(Space Heating Applications Only)
Quietside Corporation warrants that the copper tube (primary) heat
exchanger of its residential condensing gas model boilers is free from
defects in material and workmanship from the date of installation for
the second through the tenth year to the original purchaser only. If
during such time period, any part of the copper tube heat exchanger is
found to be defective, Quietside Corporation will provide replacement
for the original heat exchanger.
ELEVENTH YEAR AND BEYOND
Limited Warranty for Primary Heat Exchangers
(Residential Boilers Only)
(Space Heating Applications Only)
Quietside Corporation warrants, to the original purchaser only, that the
copper tube (primary) heat exchanger of its residential condensing gas
model boilers is free from defects in material and workmanship for the
eleventh year and beyond from the date of installation. If during such
time period, any portion of the copper water tubing is found to be
defective, Quietside Corporation will provide replacement for the
original copper tube heat exchanger upon the payment of a
proportionate charge based on the time the boiler has been in service.
The proportionate charge will be equal to the appropriate percentage
of the list price of such copper tube heat exchanger at the time the
warranty claim is made, and will be determined as follows:
12th Year – 15%;
13th Year – 18%
11th Year - 10%;
4h
th
14 Year - 20%;
15 Year – 25%;
16th Year – 30%
18th Year – 40%;
19th Year – 45%
17th Year - 35%;
th
th
20 Year - 50%;
21 Year – 55%;
22th Year – 60%
24th Year – 70%;
23th Year - 65%;
25th Year and beyond – 75%
* NOTE:
If the heat exchanger model involved is no longer
available due to product obsolescence or redesign, the value used to
establish the retail price will be the publish price as shown in the
Quietside repair parts booklet where the heat exchanger last appeared
or the current retail price of the then nearest equivalent heat
exchanger.
Exclusion of Incidental and Consequential Damages
Quietside Corporation will not pay in contract or in tort, consequential
or incidental damages under this warranty, both of which are
specifically excluded. This means we shall not be responsible for any
loss, expense or damage caused by any defect in the boiler, other than
the boiler itself.
The maximum liability of Quietside Corporation in connection with
this limited warranty shall not in any case exceed price of the part
claimed to be defective, or price of the boiler if the entire boiler is
claimed to be defective.
“Incidental” damages include expenses of inspection, obtaining
substitute goods, transportation, etc.
“Consequential” damages include injury to persons or property
resulting from a breach of warranty.
Owner’s Responsibilities
This Warranty is issued to the original purchaser only. This product
must be used and cared for in accordance with the instruction manual.
You are responsible for required periodic maintenance or service such
as lubrication, cleaning the strainer and cleaning the components. See
your instruction manual for details. You must be able to verify the
installation date of the product against which you make any warranty
claim. The original bill of sale, installer’s invoice or other similar
document is required to verify warranty. If you cannot show evidence
of the actual date of installation, warranty coverage will be considered
to start on the date the product is shipped from our distributor.
The attached warranty card must be filled out completely and returned
to Quietside Corporation. Failure to do so will prevent or delay our
being able to contact you (or the person residing at this address) in
case of a recall or important product safety alert.
Your warranty information will be held strictly confidential.
SPECIAL FIVE YEAR WARRANTY
Limited Warranty for Flat Plate Heat Exchangers
(Domestic Hot Water Heat Exchangers – Residential Use Only)
Quietside Corporation warrants that the stainless steel, flat plate heat
exchanger (used for the production of domestic hot water ) is free
from defects in material and workmanship for five years from the date
of installation. Any coagulation or blockage of the normal water flow
through the heat exchanger, due to trapped sediment, heavy
calcification, lime deposits minerals and or other waterborne buildup
in the plate heat exchanger, or corrosion due to chemical anti-freeze
additive is not considered defects in workmanship and
1
QVM 9 Series
Residential Gas Hydronic Heating System
WARNING ! If the information in this manual is not followed
exactly, a fire or explosion may result 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 !
Extinguish any open flame.
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 or 911.
Installation and service must be performed by a qualified
installer, service agency or the gas supplier.
PLACE THESE INSTRUCTIONS ADJACENT TO BOILER
AND NOTIFY OWNER TO K EEP FOR FUTURE REFERENCE.
Residential Gas Hydronic Heating System
for buying this QUIETSIDE Corporation
hydronic heating system. To use it correctly,
please read this manual carefully before installing and operating
QVM 9 Series
TEXT PRINTED OR OUTLINED IN RED CONTAINS
INFORMATION RELATIVE TO YOUR SAFETY.
PLEASE READ THOROUGHLY BEFORE INSTALLING
AND USING THIS APPLIANCE.
▣ Please read through this informative manual
and pay special attention to the following:
●
Identifying the Components · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 2
●
Safety Issues
●
Advantages of QVM 9 Hydronic Heating System
●
Proper Use
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 10
●
Installation
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 11
●
Gas Piping Connections
●
Installation of the Flue
●
Draining Condensed Water
●
About the FR-5 Thermostat · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 22
●
Installation of the Thermostat
●
Using the Room Thermostat, FR-5 · · · · · · · · · · · · · · · · · · · · · · · · · 24
●
Test Operation and Checks
●
Routine Maintenance
●
Brazed Plate Heat Exchanger – Service and Maintenance Tips· · · · · · 33
●
Dimensional Drawing of the Unit
●
Troubleshooting –
●
Wiring Diagram
●
Troubleshooting · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 38
●
Exploded Views
·············································· 3
············· 7
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 16
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 18
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 21
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · 23
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 28
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 31
Error Codes
· · · · · · · · · · · · · · · · · · · · · · · · · · · 34
· · · · · · · · · · · · · · · · · · · · · · · · · · · 35
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 36
· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 39
●
Parts List · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 40
●
Specifications · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · 42
NOTE : DUE TO QUIETSIDE’S ONGOING DEVELOPMENT PROGRAMS, PRODUCT DESIGN
AND SPECIFICATIONS MAY CHANGE WITHOUT NOTICE.
1
QVM 9 Series
Residential Gas Hydronic Heating System
Identifying the Components
■ Model : QVM 9-090W1-NG
125W1-NG
150W1-NG
QVM 9 Series
2
Residential Gas Hydronic Heating System
Safety Issues
A. THIS APPLIANCE DOES NOT HAVE A PILOT. IT IS EQUIPPED
WITH AN IGNITION DEVICE WHICH AUTOMATICALLY
LIGHTS THE BURNER. DO NOT TRY TO LIGHT THE BURNER
BY HAND. LIGHTING BY HAND COULD CAUSE PERSONAL
INJURY OR DEATH.
B. BEFORE LIGHTING: SMELL ALL AROUND THE APPLIANCE
AREA FOR GAS. BE SURE TO SMELL NEXT TO THE FLOOR
BECAUSE SOME GAS IS HEAVIER THAN AIR.
WHAT TO DO IF YOU SMELL GAS
● DO NOT TRY TO LIGHT ANY APPLIANCE.
● DO NOT TOUCH ANY ELECTRIC SWITCH;
DO NOT USE ANY PHONE IN YOUR HOME.
● 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 OR 911.
C. DO NOT USE TOOLS TO PUSH IN OR TURN THE GAS
SHUT OFF VALVE. IF THE GAS CONTROL VALVE WILL NOT
PUSH IN OR TURN BY HAND. DO NOT TRY TO REPAIR IT,
CALL A QUALIFIED SERVICE TECHNICIAN. FORCE OR
ATTEMPTED REPAIR MAY RESULT IN A FIRE OR
EXPLOSION.
D. DO NOT USE THIS APPLIANCE IF ANY PART HAS BEEN
UNDER WATER. IMMEDIATELY CALL A QUALIFIED
SERVICE TECHNICIAN TO INSPECT THE APPLIANCE AND
TO REPLACE ANY PART OF THE CONTROL SYSTEM AND
ANY GAS CONTROL WHICH HAS BEEN UNDER WATER.
E. DO NOT OPERATE APPLIANCE UNLESS UNIT IS FILLED
WITH WATER AND WATER LINES ARE FULLY OPEN.
OPERATING INSTRUCTION
5.
6.
7.
8.
9.
6.
STOP! READ THE SAFETY INFORMATION ABOVE
ON THIS LABEL.
SET THE SYSTEM CONTROLLER TO THE LOWEST
SETTING.
TURN OFF ALL ELECTRIC POWER TO APPLIANCE.
THIS APPLIANCE IS EQUIPPED WITH AN IGNITION
DEVICE WHICH AUTOMATICALLY LIGHTS THE BURNER.
DO NOT TRY TO LIGHT THE BURNER BY HAND.
TURN KNOB OF GAS VALVE TO “OFF” POSITION.
1.
2.
3.
4.
WAIT A FEW MINUTES TO CLEAR OUT ANY GAS. THEN
SMELL FOR GAS, INCLUDING NEAR THE FLOOR. IF YOU
DON’T SMELL GAS, GO TO THE NEXT STEP.
TURN KNOB OF GAS VALVE TO “ON” POSITION.
TURN POWER SWITCH TO “ON” POSITION.
SET THE SYSTEM CONTROLLER TO DESIRED SETTING.
IF THE APPLIANCE WILL NOT OPERATE, FOLLOW THE
INSTRUCTIONS “TO TURN OFF GAS TO THE APPLIANCE”
AND CALL YOUR SERVICE TECHNICIAN OR GAS
SUPPLIER.
TO TURN OFF GAS TO APPLIANCE
1. SET THE SYSTEM CONTROLLER TO THE LOWEST SETTING.
2. PRESS THE POWER SWITCH ON ROOM THERMOSTAT (IF SO EQUIPPED) TO “OFF” POSITION (LIGHT TURNS OFF).
3. TURN KNOB ON GAS VALVE (CONNECTED TO THIS APPLIANCE) TO “OFF” POSITION.
3
QVM 9 Series
Residential Gas Hydronic Heating System
Safety Issues
Equipment Protection and Personal Safety
1. Ignition Failure
If the ignition fails, the gas supply is automatically
cut off. An error code will appear as a flashing 2-digit
code on the room thermostat (models FR-5 only).
The error codes are discussed in the troubleshooting
section of the installation manual.
The boiler will be automatically shut down and an
error code will appear on the room thermostat
(models FR-5 only). Refer to troubleshooting
guide to further information.
8. Automatic Water Fill
Should the water level in the system fall too low, a
sensor will automatically activate the re-fill circuit.
2. Flame Detection
If the flame fails and/or the re-ignition attempt fails,
the gas supply is automatically cut off. An error code
will appear on the room thermostat(models FR-5
only). Refer to troubleshooting guide to further
information.
9. Freeze Protection
During the heating season, a sensor inside the boiler
will automatically detect and initiate a safety heating
cycle to prevent internal equipment damage from
occurring should freezing temperatures exist.
Note ! - When there is no gas supply available, the
circulating pump will automatically start up to guard
the pipes from freezing.
3. Power Interruption
When the power is restored after a power failure,
the boiler will automatically start and return to
normal operation, manual reset is not required.
4. Excessive Air Pressure
Occasionally an excessive gust of wind may be
forced into the flue pipe. The air-ratio control
module will detect these strong back-drafts. To
prevent any products of combustion from reentering the building through the open flue, the
gas supply will be automatically cut off. An error
code will appear on the room thermostat (models
FR-5 only). Refer to troubleshooting guide to further
information.
10. Gas Pressure Control
To prevent damage from over pressure, each boiler
is protected from occasional surges in gas pressure
by a pressure regulator located in the gas valve.
5. Explosive Re-ignition Protection
Abrupt, noisy startups and backfires are
prevented by “soft ignition”, a trademark of our
air-ratio control module.
12. Lightning Protection
Each boiler is specially grounded internally and
externally to protect against lightning strikes.
11. Short-Circuit Protection
Any short-circuit occurring in the boiler’s
electrical circuit will immediately ‘blow’ the internal
glass fuse(s) and automatically cut off the gas
supply.
13. Carbon Monoxide Protection
The boilers are designed to maintain a safe 1:1
air ratio and combustion rate. This function is
continuously monitored by the boiler’s air-ratio
control module.
6. Overheat Protection
Any overheating of the burners or heat exchanger
will automatically shut down the supply of gas to
the burners. An error code will appear on the
room thermostat (models FR-5 only). Refer to
troubleshooting guide to further information.
14. Thermostat Control Failure
Should the thermostat fail to function properly,
as a safeguard, the boiler’s gas supply will be
automatically be shut down.
7. Low Water-Level Safety
The water level in the heat exchanger is continuously
monitored to prevent the boiler from operating if
there is no water or a restricted flow of water in
the unit.
QVM 9 Series
4
Residential Gas Hydronic Heating System
Safety Issues
Use only the gas type indicated on the rating plate
of the boiler which is located at the bottom right side
panel.
Do not touch the boiler with wet hands. Do not pour
water directly to the boiler for cleaning. An electric
shock may occur.
Conversion of this appliance from natural gas to
propane CAN ONLY BE PERFORMED by a trained
technician using approved QUIETSIDE parts.
Use soapy water on the piping and connections to
check for any gas leakage.
In winter season, the boiler should be kept
connected to an electrical supply, even when the
boiler is not used, to prevent freezing. POWER
SUPPLY IS 115V – 1PH – 60Hz. If the Check
Lamp is “LIT” during the operation, it means that
the gas supply has run out. Check the lamp
frequently.
(For other troubleshooting, see page 35)
Do not use the boiler for other purposes than
heating and hot water use, such as clothes
drying, cooking, etc. Fire may occur.
Have a professional check the boiler at least once a
year. It will help extend the service life and ensure safe
and efficient operation.
5
QVM 9 Series
Residential Gas Hydronic Heating System
Safety Issues
Hot water temperatures required for automatic dishwasher and laundry use can cause scalds and
burns resulting in serious personal injury and/or death.
The temperature at which injury occurs varies with the person's age and time of exposure.
The slower response time of disabled persons increases the hazards to them. Never allow small
children to use a hot water tap, or to draw their own bath water. Never leave a child or disabled person
unattended in a bathtub or shower.
The water heater should be located in an area where the general public does not have access to the
temperature control.
Lower water temperatures should be used to avoid the risk of scalding. It is further recommended, in
all cases, that the water temperature be set for the lowest temperature which satisfies the user's hot
water needs. This will also provide the most energy efficient operation of the water heater and minimize
scale formation in the heat exchanger, thus prolonging the life of the unit.
Setting the water heater temperature at 120°F will reduce the risk of scalds. Some states require
settings at specific lower temperatures. The table below shows the approximate time-to-burn
relationship for normal adult skin.
Table- Risk of Scalds
Temperature
Setting
Time to Produce 2nd 3rd
Degree Burns on Adult Skin
Over 170 ℉
160 ℉
150 ℉
140 ℉
130 ℉
120 ℉ of less
Nearly instantaneous
About 1/2 second
About 1-1/2 second
Less than 5 seconds
About 30 seconds
More than 5 minutes
USE ANTI-SCALD VALVE(S) IN HOT WATER SYSTEM TO REDUCE THE RISKS OF SCALDING AT
POINTS OF USE SUCH AS LAVATORIES, SINKS AND BATHING FACILITIES.
Scalds – First Aid
1. Remove clothing;
clothing; Remove all wet clothing, quickly. Wet clothing retains the heat.
2. Apply cold water for 30 minutes;
minutes; Immediately submerge the burnt area in cold water for 30
minutes to reduce the heat in the skin, preventing deeper burning. Never use butter, oils or ointment
to cover the burn. They may retain the heat.
3. Keep the scalded person warm;
warm; Place a blanket around the person.
4. Seek medical advice;
advice; Call your medical advice hotline and describe the scald, follow their
directions.
QVM 9 Series
6
Residential Gas Hydronic Heating System
Advantages of QVM 9 Hydronic Heating System
THE QVM 9
QUIETSIDE’S
QUIETSIDE S VARIABLE-CAPACITY-MULTI-PURPOSE
90%+ HYDRONIC HEATING SYSTEM
How Does it Work?
The QVM 9 provides 2 different heating functions that operate independently from the same boiler.
One mode provides space heating water to heat the home. The other mode provides a continuous
circuit of hot water for domestic use eg, bath, laundry, etc. Both circuits are separate and operate at
different temperature ranges.
The space-heating water is controlled by the FR-5 thermostat. A special thermostat has been
provided that enables the user to either set the room temperature required or set the heating water
temperature. In some cases this thermostat may not be suitable for multi-system applications. (The
installing contractor will make this determination and install suitable alternative controls.
The domestic hot-water is controlled by the user. Because the QVM 9 is a multi-purpose design, it
can provide hot water on demand. There is no storage tank to hold hot water, when there is no use for
it. The QVM 9 will only produce hot water when you use it : instantaneously. The modulating gas
burner allows water to heat up evenly as it is being used. The QVM 9 will continue to heat the water
until the source or sources are shut off. This on-demand-use also helps to prevent water being held
in the boiler for long periods of time.
IMPORTANT:
A thermostatic mixing valve should be installed on the domestic water supply pipe to control the
supply water temperature and prevent any possibility of scalding.
Domestic Hot Water Priority
The QVM 9 prioritizes domestic hot water over space-heating water and will immediately stop
producing space-heating water the moment a hot water faucet or valve is opened anywhere in the
home. Once the faucet or valve has been turned off, the boiler will return to the home-heating
function again.
The Sealed-Combustion Process
The QVM 9 is designed with a special sealed-combustion venting process. Both sides of the
combustion process(inlet oxygen and outlet carbon monoxide) are isolated from each other and are
totally sealed-off from the air supply within the home. Infiltration, is reduced by as much as 90%
making the QVM 9 one of the safest, most comfortable and clean-burning boilers in the world.
7
QVM 9 Series
Residential Gas Hydronic Heating System
Advantages of QVM 9 Hydronic Heating System
Quietside QVM Product Features and Function
1. Continuous Hot Water Its On Demand! The QVM makes running-out-of-hot-water obsolete.
2. Everything Built-in
Built-in Installs in half the time.
3. Baked-in Beauty The high quality ceramic finish is baked on and keeps the exterior looking new and lustrous for years
to come.
4. Room Thermostat FR-5
FR-5 Convenient and accurate, the large digital display is easier to read, easier to use. Our new
room thermostat gives the consumer digital control over several heating functions.
5. System Timer Save energy during times the home is unoccupied. Just set and activate the timer and leave. The unit
turns off for pre-programmed intervals until you return.
6. Performance Indicator With the use of the FR-5 electronic room thermostat, the (LED) will conveniently display the
current operating condition of the unit such as, room temperature, normal operation, etc.
7. Continuous-Discharge Ignition(C.D.I.) Direct ignition design does not require a pilot burner saving gas and money.
8. Combustion Safety Protection If the unit fails to ignite after the “ON” switch is pressed, or if the flame is extinguished
due to a gas shortage, the flame sensor will shut down the unit.
9. Always Balanced Operation Despite fluctuating wind conditions, changes in atmospheric pressure and other external
disturbances, the variable-speed combustion blower provides optimum performance.
10. Exhaust Safety Protection While operating, the exhaust-discharge fan is continuously monitored. The unit will be
immediately stopped to prevent fumes from entering the home, if the wind gusts become excessive or if the exhaust
flue has become blocked.
11. Smart Re-Start
Re-Start Should the unit’s flame fail due to strong winds or low gas pressure, the unit will automatically
restart. In cold weather climates, manual resets could cause freeze damage.
12. Safety Protection During Power Outages When the power fails, the gas valve is automatically shut down.
13. Automatic Fill & Refill If for any reason the water level in the system drops to an unsafe level, the unit will
automatically open the fill valve.
14. Automatic Air Bleed Each unit has 2 built-in air bleed devices. One is manual and used for quick fill and venting
convenience; the other is air-activated and operates automatically.
15. Removal of Impurities Each unit comes equipped with a built-in, cleanable, heavy duty, particulate water filter for
trapping impurities and preventing the pipes from clogging. This is a maintenance item.
16. Air-Ratio Controller The air ratio is monitored, adjusted and controlled prior to and during each operating cycle and
will automatically adjust the combustion rate. The air-ratio controller prevents unsafe operating conditions and also
senses excessive gusts of wind in the flue system.
17. Proportional Temperature Control This control is designed to continually analyze water flow and usage while
maintaining the outgoing water at a constant, even temperature.
18. Condensing(QVM 9) Models These fully condensing units are engineered to recover and convert the normally wasted
heat from the discharge flue gasses to supply additional hot water.
19. New BTU Booster Flue Kit(standard
Kit
equipment with QVM8 and QXM8, optional QVM9) This pre-engineered venting
system adds an additional 2% to the unit’s combustion efficiency by pre-heating the incoming combustion air before it
enters the unit. A single, 4-1/4" diameter penetration through an exterior wall is all that is required for this concentric
venting system. Built of durable, polished, stainless steel. Kit includes clamps, connectors, gaskets, pipe and trim
ring.
QVM 9 Series
8
Residential Gas Hydronic Heating System
Advantages of QVM 9 Hydronic Heating System
Safety Protection
1. Burner Safety Protection (Flame Detection)
When the flame fails or re-ignition fails, the gas supply is automatically cut off.
2. Safety Protection on Power Restoration
When the power is restored after a power failure, the boiler automatically starts and runs.
3. Ignition Failure Safety Protection (Flame Detection)
When the ignition fails, the gas supply is automatically cut off.
4. Safety Protection against Excessive Air Pressure
When a high air pressure exists in the flue, the air ratio control maintains correct combustion. When
the pressure becomes excessive, the gas supply is automatically cut off.
5. Explosive Ignition Protection
Explosive ignition is prevented with the air ratio control system.
6. Overheat Protection
Overheating burners or heat exchangers will automatically cut off the gas supply.
7. Low Water Level Safety
The water level in the heat exchanger is always monitored and the boiler will not start when there is no water in
the exchanger.
8. Thermostat Safety Protection
If the thermostat fails, combustion will be stopped and the gas supply is automatically cut off.
9. Freeze Preventation
When the temperature falls, the boiler automatically starts to prevent the freezing of the boiler. When
there is no gas available the circulation pump is automatically started.
10. Gas Pressure Control (Gas Control Valve)
Gas pressure is maintained constantly by the gas valve.
11. Short Circuit Safety Protection
A short circuit in the boiler will blow the fuse and automatically cut off the gas supply.
12. Auto Fan Detection
The rotation of the fan is automatically detected and controlled. Fan failure will stop the operation of the boiler.
13. Boiling Prevention
Excessive temperatures will automatically stop the boiler.
14. Lightning and Static Electricity Protection
Protection against lightning and static electricity is built into the controller.
9
QVM 9 Series
Residential Gas Hydronic Heating System
Proper Use
Before Using
Use the selector switch according to the applications
applications.
■ Check for gas leaks by using
soapy water.
■ Check ventilation (air discharge
and inlet).
■ Heating will start when ether
the room or water temperature
falls below the set point.
■
If domestic hot water is
required during a heating
cycle. The unit will switch over
from
heating
to
provide
domestic hot water.
Open the gas supply valve.
Wire the unit to 115V 60Hz AC.
■ When the use of hot water is
stopped. The unit automatically
converts back to the heating
mode.
■ When the conditions for heating
and hot water are fully set. The
“HEAT ON” lamp will light and the
boiler will run.
■ If hot water is to be used without
heating, press the “SUMMER”
button on the room thermostat.
When the Boiler is not used for
A Prolonged Period
Notes for Ignition
■ If the water level is below a
safe level, the “Check” lamp will
be lit and the boiler will not run.
The water supply valve should
always be open so that the auto
water filling valve can operate.
■ Disconnect the boiler.
■ Drain the water in the boiler by opening the drain
or discharge valve (to prevent freezing in winter).
■ Close the water supply valve and
open the hot water tap to drain
water in the hot water piping to
prevent freezing in winter.
■ When the “Check” lamp is lit,
an error code is indicated on
the
temperature
indicator.
Contact the service center or
your dealer.
■ Close the gas supply valve.
If the boiler not to be used for a few days, selecting the
“unoccupied” mode will be more effective and convenient in
preventing freezing. In this case, do not disconnect the
boiler.
QVM 9 Series
10
Residential Gas Hydronic Heating System
Installation
■ WARRANTY WILL BE CONSIDERED VOID IF THIS EQUIPMENT IS INSTALLED BY ANYONE OTHER THAN A
QUALIFIED, TRAINED AND LICENSED (WHERE APPLICABLE ) HEATING TECHNICIAN.
■ QUIETSIDE CORPORATION IS NOT RESPONSIBLE FOR PROBLEMS OR DAMAGE CAUSED BY IMPROPER
INSTALLATION INCONSISTENT WITH THIS MANUAL.
■ THE INSTALLING CONTRACTOR MUST INSTRUCT THE OWNER ON THE FULL OPERATION OF THIS PRODUCT.
■ THE INSTALLING CONTRACTOR MUST GIVE THE OWNER THE APPORPRIATE WARRANTY CERTIFICATE AFTER
THE INSTALLATION HAS BEEN COMPLETED.
Shipping from Factory
The units are released from our facility specially
packaged to prevent handling damage and
contamination in transit. Dropping or throwing the boilers
or moving them while outside of their shipping container
may cause damage or internal contamination by any
moisture remaining after testing. Do not stand the
boilers up by resting on the piping connections.
■ When installing the unit, consideration must be given to
the proper location. The location selected should be as
close to the vent pipe termination outside the building,
and as centralized with the water piping system as
possible.
■ A minimum clearance of 4" must be allowed for access
to replaceable parts such as the thermostats, drain
valve and relief valve.
■ As the gas boiler is to be installed indoors, they shall not
be installed outdoors, such as in the porch.
Choosing the Best Location
■ Do not install boiler on a combustible wall or in a high
humidity location.
■ Never locate the unit outdoors,
such as an open porch patio
or exposed to the wind, rain
snow and cold temperatures.
Special consideration must
be given to where theventing will terminate outdoors.
■ Do not locate the unit in an equipment room that has
an exhaust fan.
■ Install the unit securely on any non-combustible wall
that is capable of supporting the 90 lbs weight of this
equipment.
■ Maintain an 6" clearance to the left and right of unit,
including 6" clearance in front of the unit for safety
inspections and future access.
■ Do not install unit in an underground or semiunderground location unless using the model FF or
SCF 9 flue kit.
There is a risk in using fuel burning appliances in rooms
or areas where gasoline, other flammable liquids or
engine driven equipment or vehicles are stored, operate or
repaired. Flammable vapors are heavy and travel along
the floor and may be ignited by the igniter or main burner
flames causing fire or explosion. Some local codes permit
operation of gas appliances if installed 18-inches or more
above the floor. This may reduce the risk if location in
such an area cannot be avoided.
Flammable items, pressurized containers or any other
potential fire hazardous articles must never be placed on
or adjacent to the boiler.
Open containers of flammable material should not be
stored or used in the same room with the boiler.
11
QVM 9 Series
Residential Gas Hydronic Heating System
Installation
Installation of Water Piping
Methods of Installation
■ The units must be firmly secured on the wall, which
can sufficiently hold the unit weight.
■ The piping materials used should
meet local codes and industry
standards.
■ Exhaust vent pipe has a maximum length of 16 feet
with upto three 90° elbows. Vent pipe must be angled
2-3° toward the boiler to return condensate.
■ Piping must be cleaned and flushedout before installation.
■ The units should be grounded to prevent electric
shock.
■ Do not apply torch heat within 12" of the bottom
connections of the unit.
■ Perform all solder connections at a safe distance from
the (brass) male connectors below the unit. Allow fittings
to cool, before attaching to unit. Use only approved
coupling unions with O-rings to attach field piping to
unit.
Check the of Gas
■ Check if the gas indicated on
the rating plate is being used. If
not, change the nozzle by
consulting the service center or
dealers.
■ The ‘heating’ pipe should be 3/4" and of type-L copper,
or PEX. Never use aluminum, plastic, or galvanized steel
piping.
■ The pipe size used for supply heating water should be
the same size used for the return heating water.
CONVERSION OF THIS APPLIANCE FROM NATURAL
GAS TO PROPANE CAN ONLY BE PERFORMED BY A
QUALIFIED TECHNICIAN.
■ Use only copper piping with lead-free solder for the
domestic water side.
■ Since the expansion tank has already been installed in
the unit, no separate tank is required.
■ The size of the domestic hot water pipe should be 1/2"
diameter.
Installation of the Flue
■ The flue should be properly installed as indicated on the
installation manual.
■ Dampers available in the market have high rate of
failure and disturb the normal operation of the boilers.
Never install any dampers.
■ Maximum length of the flue is 16 feet with upto three
90° Elbows being used. Flue Ø is 3” only.
See page 18 for details
■ The length of piping should be as short as possible and
the piping should have minimal number of bends and
connections.
■ Use only ball type isolating valves. Do not use gate
valves.
■ Never leave the heating pipes disconnected while
operating the unit as a boiler. This will cause damage to
the heat exchanger and void the manufacturers
warranty.
■ All piping should be insulated.
■ After making the piping connections, check for gas or
water leaks.
■ If the water supply pressure is 142 psi or higher, install the
reduction valve on the water supply piping.
■ If the water supply pressure is 4.3 psi or lower, install a
QVM 9 Series
12
Residential Gas Hydronic Heating System
Installation
■ A Thermostatic mixing valve must be
added to this system to prevent
scalding. If you cannot find a mixing
valve locally, please contact your
Quietside dealer or local speciality
plumbing supplier
.
Mixing type valve:
- Controls the desired hot water temperature and ensures constant hot water temperature in the faucets
(accuracy 2℉).
- Ensures safety through the built-in anti-burn/scald safeguard. Limits the deposits and accumulation of
scale.
- Includes built-in wire mesh filters and check valves for long and trouble-free operation.
Schematic of Piping Installation
68
122
104
77
86
131
113
50
140 F
99 F
MA X
OFF
ROOM TE MP.
13
QVM 9 Series
Residential Gas Hydronic Heating System
Installation
Precautions for Installation
■ The boiler should be at least 24”
away from electric appliances.
The boiler is set up for AC 115V
60Hz.
■ Piping for heating and hot water
should
be
cleaned
before
connecting to the unit.
Lime scale accumulation can reduce the life of the
equipment, reduce efficiency and waste fuel. Boiler failure
due to lime or scale buildup voids the warranty.
The flow of combustion air to the boiler must not be
obstructed.
The boiler area must be kept clear and free from
combustible materials, gasoline and other flammable
vapors and liquids.
Check the metal tag on the relief valve and compare it to
the heater’s rating plate. The pressure rating of the relief
valve must not exceed the working pressure shown on the
rating plate of the heater. In addition, the hourly BTU rated
temperature discharge capacity of the relief valve shall not
be less than the input rating of the heater. NO VALVE IS
TO BE PLACED BETWEEN THE RELIEF VALVE AND
TANK. DO NOT PLUG THE RELIEF VALVE.
■ Flue made of schedule 40 PVC
or stainless steel.
■ To facilitate the discharge of
exhaust gas, the flue should be
installed with fewest possible
bents and curves. The flue should
have a diameter larger than that of
the flue of the boiler.
The drain line connected to this valve must not contain a
reducing coupling or other restriction and must terminate
near a suitable drain to prevent water damage during
valve operation. The drain line shall be installed in a
manner to allow complete drainage of both the valve and
line. DO NOT THREAD, PLUG OR CAP THE END OF THE
DRAIN LINE.
■ Do not place flammable items
near the boiler. Never place
combustibles such as vinyl
bags, matches, thinner, etc on
boiler
■ The boiler needs a large quantity of air for
combustion, the specified vent must be installed. If
not incomplete combustion will occur and prevent
normal operation of the boiler.
Read first before connection to power supply
Low Voltage
(Thermostat Wire)
Orange Orange
Low Voltage
Blk
Red (for optional gas alarm)
Black Gray Wire
Green
White (to live voltage)
For safe operation, an ample supply of air must be
provided for proper combustion and ventilation in
accordance with the national fuel gas code, ANSI Z223.1
or CAN/CGA-B149.1 or B149.2(latest editions) or
applicable provisions of the local building codes. An
insufficient supply of air may result in a yellow, luminous
burner flame, carboning or sooting of the finned heat
exchanger, or create a risk of asphyxiation. Do not
obstruct the flow of combustion and ventilation air.
NEVER OPERATE THE HEATER UNLESS IT IS VENTED
TO THE OUTDOORS AND HAS ADEQUATE AIR SUPPLY
TO AVOID RISKS OF IMPROPER OPERATION, FIRE,
EXPLOSION OR ASPHYXIATION.
QVM 9 Series
More than 24"
Only for AC115V, 60Hz
Remove Rubber Grommet
to connect line voltage
14
Residential Gas Hydronic Heating System
Installation
There is a risk in using fuel burning appliances in rooms
or areas where gasoline, other flammable liquids or
engine driven equipment or vehicles are stored, operated
or repaired. Flammable vapors are heavy and travel along
the floor and may be ignited by the igniter or main burner
flames causing fire or explosion. Some local codes permit
operation of gas appliances if installed 18-inches or more
above the floor. This may reduce the risk if location in
such an area cannot be avoided.
Flammable items, pressurized containers or any other
potential fire hazardous articles must never be placed on
or adjacent to the boiler.
Open containers of flammable material should not be
stored or used in the same room with the boiler.
15
DO NOT INSTALL THIS BOILER DIRECTLY ON A
CARPETED FLOOR. A FIRE HAZARD MAY RESULT.
Instead the boiler must be placed on a metal or wood
panel extending beyond the full width and depth by at
least 3-inches in any direction. If the heater is installed in
a carpeted alcove or closet, the entire floor should be
covered by the panel.
QVM 9 Series
Residential Gas Hydronic Heating System
Gas Piping Connections
Check for any gas leaks
before starting the boiler.
Do not increase the gas
pressure above the specified
level.
This may cause damage
to the boilers and even fire.
Rubber or
plastic pipe
for gas should
not be used.
■ Use metal pipe or metal flexible pipe which has been
approved for use with gas and be sure to install the
shut off valve.
When local codes require a main manual shut-off valve
outside the boiler jacket, a suitable main manual shut-off
valve must be installed in a location complying with those
codes.
■ If propane gas is in use, the care should be exercised
for the following :
-
-
It is important to guard against gas valve fouling from
contaminants in the gas piping. Such fouling may cause
improper operation, fire or explosion. If copper supply lines
are used they must be approved for gas service.
Use a household regulator for propane gas with
the capacity matching to the indicated gas
consumption of the unit.
Install two or more 110 lbs propane gas cylinder
(Manifold cylinders together).
Before attaching the gas line be sure that all gas pipe is
clean on the inside.
To trap any dirt or foreign material in the gas supply line, a
dirt leg (sometimes called drip leg)must be incorporated in
the piping. The dirt leg must be readily accessible and not
subject to freezing conditions. Install in accordance with
recommendations of gas supplier. Refer to national fuel
gas code, ANSI Z223.1 or CAN/CGA-B149.1 or B149.2
(most recent edition).
This boiler is not intended to operate at gas supply
pressures other than those shown on the rating plate.
Exposure to higher gas supply pressure may cause
damage to gas valves, which can result in fire or
explosion. If overpressure has occurred, such as through
improper testing of gas lines or emergency malfunction
of the supply system, the gas valves must be checked
for safe operation. Make sure that the outside vents on
the supply regulators and the safety vent valves are
protected against blockage. These are parts of the gas
supply system, not the boiler. Vent blockage may occur
during ice build-up or snow storms.
QVM 9 Series
■ Gas piping for boiler should be connected to the main
gas line and should not be shared by other gas
appliances.
16
Residential Gas Hydronic Heating System
Gas Piping Connections
Standard Gas Piping
Consult with your gas provider to determine the proper diameter of gas pipe. This will vary
due to input capacity, the number of elbows and length of pipe.
■ The heating water supply piping should be 3/4". An isolation (ball-type) valve should be installed before the
piping is connected to the units.
■ Black iron piping or 3/4" flexible connector (approved by the local authorities for gas) should be used for gas
piping.
■ Do not use Teflon tape for gas pipe connections.
■ Install a gas drip leg at the unit.
■ Gas piping should be kept at the required distance away from any electric lines and the main service
panel(check with local authorities).
Items
Distance(inches)
1. Distance from electric lines
2. Distance from electric heaters and electric panels
6"
24"
3. Distance from flue pipes and outlets
12"
■ Install the ball valve(cut-off valve) before connecting the gas piping to the unit (Allow space for the lever’s
full movement, install valve as close to the unit as possible).
■ After the gas pipe has been completed, all connections must be checked with soapy water. Note! - Do not
test for gas leaks by pumping air-pressure into the line without first disconnecting the gas line to the unit.
Pressuring the unit will void the manufacturers warranty. Releasing this pressure into the unit will cause
immediate and severe damage to the gas valve and its internal pressure regulating device and could result in
property damage and/or personal injury.
Trial operation Quick-Fill
STEP 1
Set DIP switch #1 to the ON position(priority fill). The pump will run continuously
and the low water level sensor will be automatically turned on/off for 1-minute
intervals. Ensure that all water valves to unit are open.
STEP 2
Twist open(approx. 1/2 turn) the manual air vent until a steady stream of water
is flowing and the spurting of air stops. – Open all other bleed valves on system.
STEP 3
Close the manual air vent (any remaining air will bleed out of the system by
means of the automatic air vent).
STEP 4
After the quick fill is complete, reset the #1 DIP switch to the OFF position.
STEP 5
If the heating flow sensor stays ON, stop the pump by resetting the #1 DIP
switch(switch ON, then back OFF again)
STEP 6
Remove strainer, check for debris, clean and refit.
Ensure that system pressure has been bled off using the pressure / relief valve
NOTE ! - While in the Quick Fill mode, the power indicator light, on the FR-5 thermostat will flash:
1-second ON and 1-second OFF.
17
QVM 9 Series
Residential Gas Hydronic Heating System
Installation of the Flue
Use the supplied SCF-2 Termination Kit for venting the QVM-9 boiler to the outside.
- Optional : The Stainless Steel SCF-9 Coaxial Vent Kit may be used in place of the SCF-2 PVC
Termination Kit.
PVC Venting Method
■ Due to the extremely low flue temperatures, the QVM 9 Series boiler may be vented using 3"
schedule-40 venting materials.
■ Cut all lengths of pipe cleanly maintaining a 90-degree square edge. Use long radius elbows
whenever possible.
■ Use only the type of adhesive recommended by the PVC pipe manufacturer.
■ Keep an uphill slant from boiler to the outside to ensure that all condensed water inside the pipe will
return back to the boiler.
■ Do not place the outdoor termination kit in an area where discharge gases will be directed towards
evergreen shrubbery.
■ Assemble the flue using the following illustration as a guide. Your installation may vary slightly from
the illustration shown below.
Min. 10-inch
Max. flue length = 16 feet
Exhaust
Max. flue length = 16-ft
Intake Air
Min. 2-ft from ground
QVM9
Boiler
QVM 9
(Note! - Install the SCF-2 vent
termination kit in an area away
from humans, animals and plants)
Vent Termination
Kit, SCF 2
PVC pipe
(Schedule 40)
GROUND
Boiler
GROUND
NOTE
ⅰ) Ø 3” Schedule 40 PVC pipe only.
ⅱ) Maximum three 90° Elbows.
ⅲ) Slant flue 2 - 3° towards boiler for condensate return.
QVM 9 Series
18
Residential Gas Hydronic Heating System
Installation of the Flue
Flue Pipes used for SCF-9 Models
■ Do not use any aluminum duct as an extension.
Use extension duct sets or elbows available
through your Quietside distributor.
■ When the flue duct(including extension) passes
through a combustible wall or ceiling with
combustible materials, it should be insulated with
1" or thicker insulation and then set apart from the
wall or materials by 2" or more. When it passes
through the ceiling, include an opening for
inspection of the flue.
■ The flue duct which carries combustion waste gas
should be firmly secured by the clamp so that it
will not loosen due to vibration. The parts where
the band clamp is not used should be sealed with
aluminum tape.
■ If the air supply duct is separated from the flue
duct, the total length of the flue duct should be
10’ ft or less and with 2 or less elbows.
■ The connection of the air supply hose must be
sealed by the wire clamp to prevent any air loss. In
the connection of the flue duct and the flue elbow,
an O-ring must be inserted to prevent leaks.
Recommended Installation
Uphill Slant Air Supply Hose
Exhaust Flue 2~3°
2~3° Uphill Slant
CAUTION
● Seal between the flue and the wall to prevent rain
water from coming into the room through the flue.
● Rainwater in the Air Intake must not enter the boiler.
(Air Intake Hose must have 2~3° Uphill Slant)
● Condensed water in the EXHAUST and rain water, are
discharged through the condensed water drain hose.
19
QVM 9 Series
Residential Gas Hydronic Heating System
Installation of the Flue
Schematic of SCF-9 Installation
Seal so as not to let the
exhaust waste gas leak
into the room.
Install the flue in a place where
there are no obstacles within 5
ft from the flue end.
Ceiling
6” or more
10” or
more
25” or
more
Install the flue ensuring that it
cannot be blocked by snow falling
from the eaves.
Nonflammable
Wall
In the event the intake hose is
too long, cut to the shortest
length as possible and connect
it to the boiler.
Install the flue in a location where no
opening exists within 20" from the flue
so that exhaust gas cannot recirculate
into the building.
QVM 9 Series
Install the flue at least 2ft above the
ground. Ensure it cannot become
blocked by snow fall deposits.
20
Residential Gas Hydronic Heating System
Draining Condensed Water
■ Condensing boilers need a drain system for draining condensed water generated in the boiler.
■ Connect the condensed water drain hose to the outlet of the siphon located near the bottom of the
boiler and connect the other end of the hose to a nearby floor drain.
■ If a longer drain hose is to be used, vinyl or plastic hose with a minimum diameter of 1/2-inch is to
be used.
■ IMPORTANT!!!
The siphon reservoir in the boiler should be filled with water. If no water is
available, do not operate the boiler.
■ The condensed water should not be used for drinking water.
Be sure to clean the siphon at least once per year to prevent any problem
(After cleaning the siphon, be sure to check for any leaks of condensed water or flue gas.)
WARNING !
FAILURE TO FILL RESERVOIR CAN RESULT IN LEAKAGE OF FLUE
GASES INTO THE HOME.
ALL RESERVOIR PRIOR STARTING BOILER OPERATION.
Front of the Boiler
IMPORTANT!!!
IMPORTANT!!!
Siphon
Make sure, reservoir is
always full of water!
Proper
Water level
Condensed
Liquid
Flexible PVC Drain Tubing
IMPORTANT!!!
IMPORTANT!!!
Floor drain
Don't connect to areas
that are exposed to
freezing temperatures.
21
QVM 9 Series
Residential Gas Hydronic Heating System
About the FR-5 Thermostat
Advantages of the Model FR-5 Thermostat
[The Air Temperature Mode]
The QVM 9 hydronic heating
system has built-in artificial
intelligence. In the air sensing
mode, the FR-5 thermostat
is busy tracking the room
set-temperature.
By incorporating the use of
a pre-programmed microchip, the QVM 9 hydronic
heating system accurately adjusts the modulating
combustion process to best suit the changing needs of
the home.
■ Quietside offers new and improved ways of getting the
best comfort from your new unit.
The FR-5 thermostat is an advanced, multi-function
room controller that features a direct-readout L.E.D.
panel giving you accurate temperature control of your
environment as well as displaying information about
the performance and condition of your hydronic
heating system.
■ There are two ways of sensing temperature for the
purpose of heating your home ; the most common is
simply by sensing the air temperature within the main
living area, typically where you spend the most time.
The other is by sensing the exact temperature of the
heating water delivered by the unit.
Water Temp.
Average(℉)
[The Water Temperature Mode]
In the water-sensing mode,
the FR-5 thermostat works
with the unit to maintain a
constant water temperature
condition. There is no sensing
of room temperature in the
water temperature sensing
mode of operating and
therefore, small adjustments and fine-tuning will need
to be made from time to time.
■ With the FR-5 thermostat, both of these methods are
available to you. Now you can choose the simplicity of
setting your temperature by air(maintaining room
temperature) or the convenience and comfort of
setting your temperature by water(maintaining a
constant heating-water temperature).
■ The temperature of the air within the living space of
the home can vary from five to ten degrees. It is
difficult to sense the exact temperatures of all areas
within the home when the thermostat is located in just
one room.
[Energy Saving Mode]
Mode]
In winter, if you’re leaving
for work or plan to be away
for several hours or several
days, you can select the
‘unoccupied (Away from
Home Saving)’ mode to
reduce energy costs. During
these periods when the home is
vacant, you can program the
thermostat to operate the unit in a ‘stand-by’ mode
where the unit will cease to operate in the normal heating
function. In stand-by, the thermostat tells the unit to
only operate for very brief intervals; for the period you
have selected(anywhere from 0 to 4 hours). When you
return. Select the preferred temperature and press the
heating mode button.
On the following pages you will find the FR-5 operating
instructions describing how to operate this device add
convenience to your life while keeping you and your
home more comfortable.
■ Well-insulated homes of average design and families
with active lifestyles should find that setting the
thermostat to the air temperature-sensing function will
provide the best comfort.
■
Other homes with unusually high ceilings,
inadequate insulation, leaky windows, long drafty
hallways or simply have people who tend to feel
drafts and chills more than others could find that
setting the thermostat to the water temperaturesensing function will provide the best comfort. We
suggest trying them both.
QVM 9 Series
22
Residential Gas Hydronic Heating System
Installation of the Thermostat
Choosing the Best Location
■ Never locate the thermostat near or above a heat producing source(lamp, TV, fireplace, radiator, direct
sunlight, etc.).
■ Never locate in areas with drafts(stairwells, vestibules, foyers, against an outside/exterior wall, etc.).
■ Never locate in a room, which will be shut-off from the other living areas of the home.
■ On multi-story homes, locate thermostat on the ground floor.
■ Install at a height of about 4 to 5ft above the floor.
■ Keep out of reach from children.
Installation
[On Recessed Outlet]
[On Hollow Plaster or Drywall]
1. Remove the back plate from the FR-5 thermostat by grasping the faceplate with one hand and sliding the back
plate downward with the other hand.
2. Pull the thermostat wire through the back plate.
3. Connect 2(orange colored/stranded) wires from unit to the 2 screws located on the FR-5 thermostat.
4. Mount the back plate to the wall using either of the above techniques(depending on the construction of the wall).
Recheck all connections both inside the unit and at the thermostat. Be careful not to pinch the control wires.
Pinched or shorted wires will prevent the system from operating. Do not over tighten wire nuts connecting wires
together.
Use countersunk type screws to fix back plate to the wall.
FR-5 Thermostat
Main
Controller
Boiler
AC 115V/60Hz
Grounded Power Supply
to Boiler
DC 24V
2 Orange Wires
[Wiring FR-5 Thermostat]
Carefully tighten the 2 screws when connecting the wires. Do not apply excessive force.
If the insulation of the wires is damaged or if the terminals are in poor contact, the room thermostat
will not work properly. Be careful to protect the insulation of the wires.
23
QVM 9 Series
Residential Gas Hydronic Heating System
Using the Thermostat, FR-5
Thermostat Model FR-5
Temperature Indicator
Hot Water Switch and Lamp(Green)
Indicates the current room temperature and in case
of a malfunction, displays the error code.
It is used when hot water only is required
without heating, for example, in summer and
the lamp indicates whether this switch has
been pressed(The temperature indicator,
however, indicates the room temperature).
Run(green) & Check(red) Lamp
Power Switch and Lamp(green)
When the heating water temperature function is
selected: The “ON” lamp indicates that the boiler is
in operation.
When the room temperature function is selected:
The “ON” lamp indicates that the boiler is in
operation.
Flickering check lamp indicates a failure in the
boiler.
The switch is used to turn the boiler
“ON/OFF”.
Room Temperature Button and Lamp(green)
The unit runs according to the room temp. set by
the room temperature button and the lamp
indicates that the boiler is running at the set room
temp(The temperature of the heating water is set at
176℉ and the temperature indicator indicates the
room temp.)
Room Temperature Control
Set the room temperature between 55 to 88℉ by
turning the dial(Selecting the temperature below
50℉stops the unit)
Repetition Time Button and
Lamp(green)
Heating Water Temperature Button &
Lamp & Dial
Unit runs according to hot water
temperature selected. Lamp shows that
mode is selected. Water temperature range
is 105 – 176 DEGF matched to type of
device used.
QVM 9 Series
Energy Saving mode
The timer sets the stop
time between 0 to 4
hours. Turn dial to
select the appropriate
offset time.
24
The boiler stops for the time
set by the timer and then
runs for 20 minutes.
This button is to start this
cycle
and
the
lamp
indicates this mode(The
temp. of the heating water
is set at 176℉ and the
temp. indicator displays the
room temp).
Residential Gas Hydronic Heating System
Using the Thermostat, FR-5
When the heating water temperature mode
is selected :
1. Press the “Heating Water Temperature” button. The
indicator light will go on.
4. To stop the operation in this mode set the
temperature control below 104℉ (Rad). The unit
will stop but the freeze prevention function will
stand by.
2. Turn the temperature control to set the desired room
temperature.
e.g.) Winter Season
: Fcl ~ Cast
Spring/Fall Season : Base ~ Fcl
Unoccupied(Energy Saving mode)
1. Press the “Away From Home Saving” button. The
room temperature will be indicated on the temperature
display.
•Fcl – Fan Coil
•Cast – Cast Iron Radiator
•Base – Baseboard
•Rad - Radiant
3. The unit will now provide heating water at the set
temperature.
If you open a hot water faucet, it will
automatically change to Hot Water mode and
stop heating the home during this mode.
25
2. Turn the timer to select the desired ‘stop time’
intervals.
e.g.) Winter Season
: 0 ~2 hrs
Spring/Fall Season : 2 ~ 4hrs
▶The control is in increments of 10 minutes.
▶The temperature of the heating water is automatically
set at 176℉.
QVM 9 Series
Residential Gas Hydronic Heating System
Using the Thermostat, FR-5
2. Turn the “Set Temperature” button to select the desired
room temperature(the temperature of the heating water
is automatically set at 176℉)
3. The unit runs automatically for 20 minutes then
stops for the selected time; this cycle is
continuously repeated until the occupant returns
home and de-selects this setting (“ON” lamp is
lit only when the boiler is running).
4. It will run according to the repeat time you set.
If you open a hot water faucet, it will automatically
change to hot water mode and stop operating in this
mode.
3. The unit is run at the room temperature selected.
If you open a hot water faucet, it will
automatically change to hot water mode and stop
heating the home in this mode.
When the heating is controlled
by the room temperature
1. Press the “Set Temperature” button. The room
temperature will be indicated on the temperature
display and the Room Temperature lamp and “ON”
light will go on.
QVM 9 Series
4. To stop the operation in this mode, set “Set
Temperature” control below 55℉. Then, the
boiler will stop and the freeze prevention function
will stand-by.
26
Residential Gas Hydronic Heating System
Using the Thermostat, FR-5
Operating for Domestic Hot Water mode
during Summer Season :
(SAVE ENERGY in SUMMER)
Miscellaneous
1. Press the “SUMMER” button. The room temperature
will be displayed on the L.E.D. temperature indicator.
(Note! – Home heating function will stop)
1. If the boiler cannot run due to a failure in the
temperature control, call for service. The two wires
at the back of the room thermostat may be
connected together for emergencies. A specific
heating water temperature will be automatically set
and the unit will start (To stop the unit, the wires
must be disconnected).
2. When a malfunction occurs, press the “HEAT
ON” button to turn the boiler “OFF”. When the
malfunction has been repaired, press the button
“HEAT ON” again and then choose the desired
function.
2. If you wish to stop the “Hot Water” mode, press the
“HEAT ON” button. If you want to choose other
functions, press the desired selector buttons. After
using summer mode, the other selector switches must
be pressed for additional functions and to cancel the
“SUMMER” mode of operation.
Table- Error Codes
This unit is not designed for heating portable water.
It is not recommended to use this unit for making
hot beverages.
27
QVM 9 Series
Residential Gas Hydronic Heating System
Test Operation and Checks
Checkup after Installation
Checks before Trial Operation
1) Check the flammability and rigidity of floor & wall
materials. Ensure that all minimum clearances to
walls, ceilings, overhangs, etc. have been met.
■ Type of gas being supplied(the one indicated on the
rating plate of the units)
■ When the type of gas does not match the one
specified on the unit rating plate, modification and readjusting will be required(Consult your heating dealer
or a qualified technician with the gas utility company).
2) Freeze Prevention Device
The units must be wired-in to a 115 volt electrical
circuit once they have been connected to water
piping and the circuit has been filled with water. If
the freeze prevention circuit starts due to a lowwater condition, the pump will begin running on
“air” and cause premature failure and will void the
warranty on the pump.
■ Test for leakage at all gas piping connections.
■ AC 115 volts 15 Amp. dedicated circuit with approved
grounded connection.
Check to see if the unit is properly connected
and the piping is insulated properly.
■ Heating and hot water pipes must be properly installed
and in compliance with the standard installation
methods and local code requirements. CAUTION !
Any air remaining in the heat exchanger piping will
cause rapid corrosion in the unit.
If the insulation has worn off or is not fitted, the
risk of freezing of piping and severe damage to
the unit is considerable. Thoroughly check the
piping insulation and replace where necessary.
■ Completely vent the air at this time.
■ Check DIP switch setting against the factory settings
shown on the control board diagram.
■ Measures to prevent fire must be taken and
check that flue ducts are installed in compliance
with the instructions?
■ Check for proper flue pitch, slope and alignment for
QVM 9(condensing) hydronic heating systems.
Checking for Gas and Water Leaks
■ Fill plastic condensate trap in QVM 9 check correct
routing of all condensate and vent drain tubing. Run
condensate drain by gravity to nearest floor drain or
condensate pump. Note! - Condensed water is
slightly acidic. Avoid draining into piping in disrepair or
piping exposed to freezing temperatures.
■ Are there any water leaks in the heating and domestic
hot water piping?
■ Are there any gas leaks in the gas piping?
■ Connect room thermostat and check all wiring
connections at control, at molex connectors in unit
and at main circuit panel.
QVM 9 Series
28
Residential Gas Hydronic Heating System
Test Operation and Checks
Trial Operation
STEP 1
Confirm type of fuel gas supplied.
(Natural or LP. Gas)
STEP 2
Check for gas leaks (Use soapy
water
on
the
piping
and
connections to check for any gas
leakage).
STEP 3
STEP 4
STEP 5
STEP 6
Ensure that the electric power
source is AC 115V/60Hz.
Fill the siphon reservoir in the
boiler with water. If no water is
available, do not operate the
boiler(refer to page 20).
Turn #1 DIP switch to “ON”
position (Trial Operation mode).
Install the room thermostat, FR5. Power lamp will flash 1
second – ON, 1 second – OFF
during trial operation
STEP 7
Open the manual water inlet valve
connected to the boiler.
STEP 8
Connect main power.
Front of the Boiler
STEP 9
Siphon
Proper
Water level
The circulator pump in the boiler
will be operating and the heating
piping will be filled with water by
means of the automatic water
filling system.
Condensed
Liquid
29
QVM 9 Series
Residential Gas Hydronic Heating System
Test Operation and Checks
STEP 10
STEP 11
Purge heating piping of air.
- Open the manual air vent in
order to bleed air from the unit.
- Shut off the manual air vent
when the pressure in the heating
piping reaches the operating
pressure.
- The automatic air vent will
automatically remove remaining
air in the heating piping.
■ Turn the boiler to “HEAT ON” at the room
thermostat.
■ If the CHECK lamp is illuminated, note the
error code and follow the troubleshooting
guide. After the required adjustments have
been made, restart the unit. Disconnecting
and reconnecting the power may be required
to restart the boiler (at power button “HEAT
ON”).
■ In case of leaks water pipes, turn off power to
unit. Shut off all isolation valves. Inspect O-ring
connections and replace if necessary. Check all
fastening clips are securely in place before
opening the isolation valves.
Turn #1 DIP switch to “OFF”
position
(Normal
Operation
mode).
Checking Operation of the unit
■ Is the flame pattern normal?
■ Is heating temperature set on the thermostat?
■ Is hot water provided from the boiler?
STEP 12
Turn off unit. Use P/R valve to
vent pressure inside the unit.
Remove & clean strainer.
Replace & start unit.
STEP 13
The unit will operate in accordance
with the room thermostat settings.
STEP 14
Check for leaks in all connections to
the unit.
QVM 9 Series
CAUTION
■ If the power supply to the boiler is shut off after the test
operation, completely drain water from the system
(heating & hot water) to prevent possible freeze up.
30
Residential Gas Hydronic Heating System
Routine Maintenance
■ For failure-free, safe and economical use, routinely check and clean the gas boiler.
■ Checks and maintenance should be done after the gas valve has been closed and the boiler has
cooled down fully.
■ Other matters not specifically covered in the following checks and maintenance refer to the
trained technician.
Maintenance and Cleaning
Routine Checks
■ If the boiler exterior is dirty, disconnect power to the
boiler, wipe the boiler with a wet cloth soaked with mild
detergent and remove moisture with dry cloth.
■ Apply soapy water on the gas piping, shutoff valve and
the gas connections to check for leaks.
■ Check for any rust and clogs in the flue duct.
■ Check if the “Check Lamp” is “ON” (FR-5 thermostat).
DO NOT USE A NYLON BRUSH OR OTHER STATIC
CREATING MATERIAL TO CLEAN DUST AND CARBON
DEPOSITS FROM HEATING SURFACES AND VENT.
■ If “Check Lamp” is lit, note the error code shown to
assist in repair and service of the boiler.
SUCH DEPOSITS ARE FLAMMABLE AND MAY BE
IGNITED BY STATIC ELECTRICITY. USE A METAL
BRUSH TO MINIMIZE THE DANGER OF EXPLOSION.
FR-5
Room
Thermostat
DO NOT ATTEMPT TO SERVICE YOUR APPLIANCE
YOURSELF.
Call a Quietside Coporation
authorized service
technician
31
QVM 9 Series
Residential Gas Hydronic Heating System
Routine Maintenance
Routine Checklist
No.
Checking Items
Measures
1.
Prior to inspection and maintenance.
2.
Check for leaks in gas piping
connections with soapy water.
Close the gas shut-off valve, turn off power to
the unit.
&
Repair the leak.
1) Close the gas shut – off valve.
2) Prohibit the use of any device which may
cause gas to ignite or explode such as
matches, lighters, or turning switches on or
off.
3) Ventilate the indoor space.
4) Contact the gas supplier or call the fire
department or 911.
3.
Emergency measures for a gas leak.
4.
Check for obstructions in air intake and Stop the unit and immediately contact the
exhaust(flue) pipe.
installer or service company.
5.
Check the pressure of the incoming water
Check for lack of heating water.
supply (If the pressure is lower than the
(Low volume or flow of water supplied to
minimum hot water pressure, install a separate
tub or faucets)
pressurizing pump).
6.
Check for external contamination.
Stop the unit and clean with neutral detergent.
7.
Precautions for restart after
shutdown.
(Typical for vacation homes)
Check if condensate trap is filled to mark. If
not, add water to fill to mark.
8.
Check for clogging of the strainers at the Clean strainer(s). If clogged it may
‘advisable to’ flush system completely
heating inlet or hot water inlet.
9.
Abnormal noise during the operation.
Stop the unit and contact your dealer.
Drainage of condensed water.
Siphon should always be filled with water to the
top of the container. The condensed water
drain should be connected to the sewer. Never
drain to areas prone to freezing temperatures.
Siphon should be cleaned annually.
10.
QVM 9 Series
prolonged
32
be
Residential Gas Hydronic Heating System
Brazed Plate Heat Exchanger-Service and Maintenance Tips
( DOMESTIC HOTWATER HEAT EXCHANGER )
WATER QUALITY:
Water Quality should be maintained at a Ph of 7.4, and not less than 6.0 Ph for
proper heat exchanger life
WATER STRAINER:
STRAINER: A water strainer MUST be installed in the water inlet circuit the protect the heat
exchanger from restricted flow rate and/or blockage (16-20 mesh minimum,
20-40 mesh best choice).
CONNECTIONS:
Remove 2 philips head screws holding the pipe flange to the plate heat
exchanger while removing the other end of the heating pipe from its anchor point
as well. (some of these fittings may use ‘speed clip’ which slide in and out to
release the pipe end.) Grasp pipe and flange and pull away from the plate heat
exchanger being careful not to cause stress to other fittings and connections.
Check O-ring on tube ends and replace if necessary.
CLEANING:
In some applications the flat plate heat exchanger may be subjected to severe
conditions, including high temperature and/or hard water conditions, causing
accelerated scaling and corrosion rates, which will impede the performance of
the heat exchanger decreasing the delivery of hot water to the home. Because
these factors it is important to establish regular cleaning schedules. The
chemical cleaning process is very simple for cleaning the Quietside Flat Plate
Heat Exchanger, which will extend the life and performance of the heat
exchanger
A 5% solution of Phosphoric Acid or Qxalic Acid may be used. Other type
cleaning solution can be obtain from you local wholesaler. Do not heat acid
solution when back-flushing through heat exchanger. Flush heat exchanger with
plenty of fresh water after cleaning.
Make sure cleaning solution is applicable for stainless steel and copper that
directions are follow as recommended.
Cleaning
Solution
Heat
Exchanger
Fluid
Circuit
(Shown removed
from unit)
33
QVM 9 Series
Residential Gas Hydronic Heating System
Dimensional Drawing of the Unit
FLUE EXHAUST
COMBUSTION AIR INTAKE
FRONT
Heating
Supply
Heating
Return
RIGHT
Hot Water Tap Water Gas Inlet
Inlet
Supply
Pressure Relief
Valve
Condensed Water
Discharge Heating
Supply
Heating
Return
Hot Water
Supply
Tap Water
Inlet
Gas Inlet
※ Dimensions in “(
(unit : inch)
)” apply 150W1-NG models.
■ Safety Valve : When excessive pressure occurs, the valve opens to reduce pressure by draining
water. When leaving home for a long time, water in the boiler should be drained to
prevent freezing of the boiler.
■ Strainer
: Increases heating performance by filtering impurities from the system. When
heating performance is decreased, clean the filter by removing clip, washing out
and re-inserting the filter. Replace the clip!
THE WATER FLOWING OUT OF THE PRESSURE / RELIEF VALVE DURING IT’S
OPERATION MAY BE EXTREMELY HOT. BEFORE OPERATING RELIEF VALVE,
MAKE SURE DRAIN LINE IS INSTALLED TO DIRECT DISCHARGE TO A SAFE
LOCATION SUCH AS AN OPEN DRAIN. AVOID SCALDING AND/OR WATER
DAMAGE.
QVM 9 Series
34
Residential Gas Hydronic Heating System
Troubleshooting
Error Code
01) Overheat
02) Low Water Level
03 / Ignition Failure
Cause
Troubleshooting
• Clogged / Reduced flow in heating
system
• Circulating pump failure
• Check strainer clean if required
• Check system for flowrate
• Check pump for operation –115V AC = 1
Amp
• Check system / Check pump
• Check system
• Check system 5V DC- input signal
• Input 115V AC
• N/C contacts
• Check gas connection
• Check gas valve
• Check tube for connection
• Check flue for blockage
• Check gas valve pressure operated
• Check gas pressure
• Check fan for operation
• Check switch, flue for obstruction
•
•
•
•
•
•
No water in system / Pump failure
No make up water supply
Water fill valve failure
Check ignition transformer
Check high limit switch / fuse
No gas supply
• Air pressure switch tripped
• Low gas pressure
04 / Flame Sensor
05 / Heating Sensor Wire
Disconnected
06 / Heating Sensor Short
Circuit
07 / Hot Water Sensor
Wire Disconnected
08 / Hot Water Sensor
Short Circuit
09 / Fan RPM Failure
10 / Air Pressure Switch
Failure
11 / Water level Detection
Failure
12 / Flame Failure
13 / Heating Water Switch
Failure
14 / Gas Alarm (Optional)
• Fan
switch
failure /
Airflow
• Check molex connection
• Non-applicable
• Sensor failure
• Blocked flue
• Excessive wind gusts
• Check voltage @Pin #19&8 on 21Pin
connector, main controller 5V DC
• Check fan for operation. Input voltage 7
– 40V DC. Red-Black wires
• Check fan for operation
• Check tube connection
• Check voltage 5V DC
• Check flue for blockage
• Check flue termination - relocate
• Check water fill valve
• Voltage 5V DC
• Low gas pressure
• Check gas pressure
• Check gas valve
• Check fan for operation
• Check tube on air flow sensor
• Check air flow sensor – 5V DC
• Check flue for obstruction
• Check voltage – 5V DC on Pin #10 on 13
pin and Pin #17 on 21 pin connectors
• Re – connect
• Check gas supply
• Check voltage 5 – 20V DC
• Check connection from t-stat to unit
• Replace t-stat or micom controller
• Check for pump operation 115V AC,
approx 1A (dependent on flow rate)
• Check fan for operation
• Check rotation
• Check setting especially for 090/125/150
boilers
•
•
•
•
Fan failure
Check speed control
Fan failure
Air flow switch failure
• Fan failure / Air flow sensor
• Blocked flue
• Faulty switch
• Check if connected (Red / Black
wire)
• Pump motor overheat
17 / DIP Switch Setting
• Re - connect
• Non-applicable
15 / Micom Failure
16 / Mechanical Overheat
pressure
• Fan motor overheat
• Incorrect settings
35
QVM 9 Series
Residential Gas Hydronic Heating System
Wiring Diagram
Error Codes (FR-5 Thermostat)
FND NO.
Problems
FND NO.
DIP S/W Setting on Main Controller
Problems
01
Overheat
10
Wind
pressure
failure
Air
pressure
failure
02
Low water level
11
Water level detection failure
03
Ignition failure
12
Flame failure in combustion
04
Flame-Sensor
Pseudo-flame
(Lower gas pressure)
13
05
Breakage
of heating
sensor
Heating
sensor
wire disconnected
14
06
Short circuit of heating sensor
15
MICOM failure
07
Breakage
of hotwire
water
sensor
Hot
water sensor
disconnected
16
Mechanical overheat
08
Short circuit of hot water sensor
17
DIP
S/W setting
settingerror
error
DIP S/w
09
Fan RPM failure
18
Heatingflow
water
S/Wfailure
failure
Heating
sensor
(Closed-Air Type)
NO
ON
OFF
1
2
Trial Run
Forced Max.
Combustion
Forced Min.
Combustion
NoAir Intake
Connection
-
Normal
Normal
Air Intake
Connection
-
Sealed Combustion
OpenCombustion
-
QVM 9
3
4
Gas alarm(optional)
alarm
Gas
Wiring Connecters
Pin NO
1. 13 Pin Wiring Connecting Diagram
5
6
7
NO
090W1
125W1
150W1
8
OFF
OFF
OFF
9
ON
ON
OFF
10
ON
OFF
ON
Function
3,5
3-Way
Hot Water
Ignition
Transformer
Circulation Pump
Pin NO
1,5
2,6
3
AC 200V
Pin NO
1,11
Normal
Pin NO
Function
7,11
3-Way Heating
10
Gas Control
Valve
Ground
Function
Pin NO
Function
AC 17V
AC 42V
4,7
8,9
AC 12V
AC 115V
Function
PinNO
Function
1,11
Supply Power
9,20
2,12
High Limit
Fuse
10,21
2,12
8,13
2. 9 Pin Wiring Connecting Diagram
3. 21 Pin Wiring Connecting Diagram
3,4
5,15
7,18
8,19
QVM 9 Series
36
Fan Power
3 : Vc=7~40V
4 : Vs=12V
Heating Temp.
Sensor
Air Pressure
Switch
Hot Water
Flow Switch
Room
Thermostat
Gas Leakage
Alarm
10 : “+” terminal
21 : “-“ terminal
13
RPM Ground
14
RPM Input
16
Flame Detector
17
Heating Flow
Switch
Residential Gas Hydronic Heating System
Wiring Diagram
QVM9 SERIES WIRING DIAGRAM
Top of Main Controller
RED
(+)
10
21
BLK
(-)
GAS LEAKAGE
ALARM WIRE
INPUT SIGNAL
: DC 5 - 20 V
140
50
68
9
20
3
99F 4
86
2
0 H rs
1
ORG ORG
104
176 F
ROOM
CONTROLLER
INPUT SIGNAL
: DC 20 V
BLK
8
19
BLK
HOT WATER
FLOW SWITCH
INPUT SIGNAL
: DC 5 V
YEL
7
18
YEL
AIR PRESSURE
SW ITCH
INPUT SIGNAL
: DC 5 V
6
17
16
BLK
5
15
4
14
3
13
2
12
RED
RED
WHT
BLK
WHT
RED
OVERHEAT
PREVENTION
INPUT SIGNAL
: DC 20 V
YEL WHT
HEATING W ATER
TEMPERATURE
INPUT SIGNAL
: DC 5 V
FLAME DETECTOR
INPUT SIGNAL
FAN(DC 40V,max)
YEL : Vs=12V DC
WHT : Rotation Signal
RED : Vc=7 - 40V DC
BLK : Ground
BLK
1
11
WHT
4
9
YEL
AC200V
3
8
BLK
AC115V
AC12V
WHT
GRY
AC115V
VOLTAGE FOR
FLAME DETECTOR
FUSE , 3A - 2EA
SUPPLY POWER
115V , 60Hz
5
1
6
2
7
BLU
AC17V
BLK
BLK
HEATING FLOW
SENSOR
INPUT SIGNAL
: DC 5 V
ORG
AC17V
AC42V
RED
BRN
AC42V
RED
AC12V
[9 PIN]
POW ER TRANSFORMER
6
13
5
12
WHT WHT
PUMP
AC115V, 60Hz
Temp. FUSE
Operating Temp. : 313 °F
4
11
10
GRN
EARTH
BLU
IGNITION TRANS
AC115V, 60Hz
BLU
[13 PIN]
3
2
1
BLU
7
RED
EV 1
EV 2
AC 220V
Botton of Main Controller
1)BRN : Primary valve
2)BLU: Secondary valve
AC 220V , 60Hz
GAS VALVE
SIT 822 NOVAMIX
BRN
BRN
BLU
BLU
THREE WAY VALVE
1)BLK,RED : HOT WATER
2)BLK,BLU : HEATING WATER
AC 115V, 60Hz
BLK
8
RED
AC 115V
UP LOAD TRANS.
for GAS VALVE
RED
9
OVERHEAT DAMAGE PREVENTOR
Operating Temp. : 203 °F
QVM 9 Series
37
. BRN : BROWN
. GRN : GREEN
. BLK : BLACK . YEL : YELLOW . WHT : WHITE
. BLU : BLUE
. RED : RED
. ORG : ORANGE
GRY : GRAY
[21 PIN]
LEGEND
Residential Gas Hydronic Heating System
Troubleshooting
If any failure occurs, check the following before contacting a service or a dealer.
If the check lamp comes “ON” and the failure code is displayed, take proper actions and then restart the unit.
(Re-plug in the unit or turn the unit “ON” few minutes after the check lamp has come “ON”)
■ If such procedure does not work, contact the nearest service center.
■ Certain non hazardous failures will shut down the unit, but will not illuminate check light. Press ON/OFF
button to obtain error code.
■
■
Symptoms
▶ No indication on the
water temperature
indicator
Causes
▶ Blown fuse
▶ Replace new fuse
▶ Power failure
▶ Wait until the power is restoreed
▶ Check circuit breakers
▶ Room temperature is higher than the set
▶ Temperature is indicated
but the unit does not
work
The unit does
not work
▶ “02” is indicated on the
temperature indicator
Troubleshooting
temperature
▶ Increase the set temperature at the room
thermostat
▶ Set temperature at the unit
thermostat is low
▶ No water in the heating pipe
▶ Water filling valve failure
▶ No tap water supply
▶ Increase the set temperature at the
thermostat
▶ Fill the heating water
▶ Contact the service center
▶ Check for any clogging in the heating
▶ “01” is indicated on the
temperature indicator
▶ When the unit is started, the ignition
fails and the check lamp comes “ON”
▶ Ignition fails and the exhaust fan runs
continuously
▶ Clogged heating pipe
▶ Circulation pump failure
▶ Low or no gas pressure
▶ Contact for service
▶ No flame detection
▶ Contact for service
▶ Intermediate valve closed
▶ Open the valve
▶ No ignition
▶ Contact for service
▶ Air pressure switch tube disconnected
▶ Incorrect installation of flue
▶ Connect the tube
▶ Correct the wrong installation
▶ Clogged flue exhaust pipe
▶ Closed valve on the heating line or
▶ Check the smoke stack
clogged pipe(Heating water)
▶ The unit runs properly but heat
pipe. If the pipe is clogged, contact the
unit installer
▶ Clean the heating strainer
▶ Check the circulation pump
※ After removing the cause, press the
“HEAT ON” button again
▶ Check the heating pipe(strainer)
▶ Air in the heating pipe
▶ Purge the air from the piping
▶ Circulation pump does not work
▶ Contact for service
▶ Leak in heating pipe
▶ Low water pressure
▶ Fix the leak
▶ Install a pressurizing pump
▶ Circulation pump does not work
▶ Defective 3-way valve
▶ Contact for service
▶ Contact for service
▶ Pressure falls
▶ Leakage in piping
▶ Contact for service
▶ Loud noise during the ignition and
▶ installation of flue duct
▶ Contact for service
▶ Clogged flue pipe(s)
▶ Contact for service
performance is poor
▶ The unit runs normally but hot water is
not supplied
combustion
▶ Hot water supply stops
▶ Clogged hot water line
▶ Defective hot water flow switch
QVM 9 Series
38
▶ Clean the strainer at the inlet of the hot
water flow switch
▶ Contact for service
2
3
5
4
14
11
6
39
12
15
13
7
16
8
17
9
18
10
44
21
23
22
20
19
32
31
24
43
41
27
26
28
46
29
55
54
25
45
34
52
42
30
57
53
49
40
35
63
56
36
33
58
50
39
62
38
37
60
59
51
48
61
47
1
40
60
80 C
70
FR-5
3
4
2
0
1
Room Thermostat Model FR-5
Residential Gas Hydronic Heating System
Exploded Views
Models : QVM9-090W1-NG
125W1-NG
150W1-NG
QVM 9 Series