Honeywell VR8404 User manual

1 69-0814—1J.D. • Rev. 4-94 • ©Honeywell Inc. 1994 • Form Number 69-0814—1
VR8404 High Capacity Intermittent
Pilot Combination Gas Control
Application
This high capacity intermittent pilot combination gas
control is used in gas-fired appliances with capacities up to
500 feet3/hour at 1 inch wc pressure drop [14.2 meters3/
hour at 0.25 kPa] on natural gas. This entire gas control
consists of two valves assembled in parallel on a die-cast
manifold to provide high capacity. Each valve includes a
manualvalveandtwoautomaticoperators.Onevalvehasa
pilot outlet and the other valve has no pilot outlet. A
nonremovable electrical harness connects both valves. Do
not alter or remove this harness. Three pigtail leads (with
1/4-inch quick connects) provide for field connection. Gas
controls are available for natural gas and LP; they are not
convertiblefromonegastoanother.Bushingsareavailable
to reduce the inlet and outlet of the entire gas control.
Models are available with slow-opening (VR8404H),
standard (VR8404M) and step-opening (VR8404P) regu-
lators. Valves have fixed pressure regulation and are not
adjustable. It is recommended that an appliance shutoff
valve be installed upstream of the VR8404
BODY PATTERN: Straight-through body pattern.
INLET/OUTLET SIZES: 3/4 x 3/4 inch, 3/4 x 1 inch,
1 x 1 inch.
CAPACITY:
aCapacity based on 1000 Btu/feet3, 0.64 specific gravity natural gas at 1 inch wc pressure drop [37.3 MJ/meter3, 0.64
specific gravity natural gas at 0.25 kPa pressure drop].
Use conversion factors in Table 1 to convert capacities
for other gases. TABLE 1—
GAS CAPACITY CONVERSION FACTORS.
Gas Specific Gravity Multiply Listed Capacity By
Manufactured 0.60 0.516
Mixed 0.70 0.765
Propane 1.53 1.62
ELECTRICAL RATINGS:
Voltage and Frequency: 24 Vac, 60 Hz. (50/60 Hz
models available on request.)
Current Draw: 1.4A.
Thermostat Heat Anticipator Setting: 1.4A.
TEMPERATURE RATING:
VR8404H: -0° F to 175° F [-18° C to +79° C].
VR8404M,P: -40° F to +175° F [-40° C to +79° C].
ACCESSORY:
Part no. 390427H 3/4 in. x 1 in. Bushing.
APPROVALS:
AmericanGasAssociationdesigncertificate:L2025009.
CanadianGasAssociationdesigncertificate:L2025009.
Underwriters Laboratories Inc.: MH8191
Installation
WHEN INSTALLING THIS PRODUCT…
1. Read these instructions carefully. Failure to fol-
low them could damage the product or cause a hazardous
condition.
2. Check the ratings given in the instructions and on
the product to make sure the product is suitable for your
application.
3. The installer must be a trained, experienced service
technician.
4. After installation is complete, use these instructions
to check out product operation.
Size
(Inlet x Outlet) (in.) Capacity (at 1 inch
wc pressure drop
a
)Minimum
Regulated Capacity Maximum Regulated Capacity
3/4 x 3/4 400 feet
3
/hour
[11.3 meter
3
/hour] 200 feet
3
/hour
[5.7 meter
3
/hour] 575 feet
3
/hour
[16.3 meter
3
/hour]
3/4 x 1 450 feet
3
/hour
[12.7 meter
3
/hour] 200 feet
3
/hour
[5.7 meter
3
/hour] 625 feet
3
/hour
[17.7 meter
3
/hour]
1 x 1 500 feet
3
/hour
[14.1 meter
3
/hour] 200 feet
3
/hour
5.7 meter
3
/hour] 720 feet
3
/hour
[20.3 meter
3
/hour]

69-0814—1 2
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH.
Follow these warnings exactly:
1. Disconnectpowersupply before wiring to pre-
vent electrical shock or equipment damage.
2. To avoid dangerous accumulation of fuel gas,
turn off gas supply at appliance service valve
before starting installation, and perform the
Gas Leak Test after completion of installation.
3. Do not bend pilot tubing at gas control or pilot
burneraftercompressionfittinghasbeentight-
ened, because gas leakage at the connection
can result.
4. Always install sediment trap in gas supply line
to prevent contamination of gas control.
5. Do not force the gas control knobs. Use only
your hand to turn the gas control knobs. Never
use any tools. If the gas control knobs will not
operatebyhand,callaqualified servicetechni-
cian to replace the entire gas control. Force or
attempted repair can result in fire or explosion.
6. Replace entire VR8404 when doing a product
replacement. Do not replace individual valve
components.
7. For complete device shutoff, both gas control
knobs must be in the OFF position. For com-
plete appliance shutoff, turn off the upstream
appliance valve and disconnect the power
supply.
8. Use the wiring harness for connecting the en-
tire gas control to the ignition control module.
Donot remove the harness or modifythe wires
in the harness.
CAUTION
Never apply a jumper across or short the valve
leadwires. This can burn out the heat anticipator
in the thermostat or damage the electronic inter-
mittent pilot (IP) module.
IMPORTANT: This entire gas control is shipped with
protective seals over inlet and outlet tappings. Do
not remove seals until ready to connect piping.
Follow the appliance manufacturer instructions if avail-
able; otherwise, use the instructions provided below.
INSTALL BUSHINGS ON ENTIRE GAS CONTROL
1. Remove seals over gas control inlet or outlet.
2. Apply moderate amount of good quality pipe com-
pound to bushing, leaving two end threads bare. On an LP
gas installation, use compound resistant to LP gas. See
Fig. 2. Do not use Teflon tape.
3. Insert bushing in entire gas control and thread pipe
carefully into bushing until tight.
CHOOSE GAS CONTROL LOCATION
Locate the gas control in the appliance vestibule on the
gas manifold. In replacement applications, locate the entire
gas control in the same location as the old gas control.
Do not locate the entire gas control where it can be
affected by steam cleaning, high humidity, dripping water,
corrosivechemicals,dust orgrease accumulation,or exces-
sive heat. To safeguard proper operation, follow these
guidelines:
• Locate entire gas control in a well-ventilated area.
• Mount entire gas control high enough above the
cabinet bottom to avoid exposure to flooding or
splashing water.
• Make sure the ambient temperature does not exceed
the ambient temperature ratings for the entire gas
control.
• Cover entire gas control when appliance is cleaned
with water, steam, or chemicals or to avoid dust and
grease accumulation.
• Avoid locating gas control where exposure to corro-
sive chemical fumes or dripping water is possible.
Install Appliance Shutoff Valve
It is recommended that an appliance shutoff valve be
installed upstream of the VR8404. Refer to the instructions
provided by the valve manufacturer.
Install Piping to Gas Control
Allpiping must comply with local codes and ordinances
or with the National Fuel Gas Code (ANSI Z223.1 NFPA
No. 54), whichever applies. Tubing installation must com-
ply with approved standards and practices.
1. Use new, properly reamed pipe free from chips. If
tubing is used, make sure the ends are square, deburred and
clean. Make sure all tubing bends are smooth and without
deformation.
2. Run pipe or tubing to the gas control. If tubing is
used, obtain a tube-to-pipe coupling to connect the tubing
to the gas control.
3. Install sediment trap in the supply line to the entire
gas control. See Fig. 1.
Fig. 1—Install sediment trap.
!
!
GAS
CONTROL
GAS
CONTROL
HORIZONTAL
DROP
PIPED
GAS
SUPPLY
PIPED
GAS
SUPPLY
3 INCHES
[76]
MINIMUM
3 INCHES
[76]
MINIMUM
RISER
GAS
CONTROL
TUBING
GAS
SUPPLY
HORIZONTAL
DROP
3 INCHES
[76]
MINIMUM
RISER
M3077
2
1
2
2
1
2
ALL BENDS IN METALLIC TUBING SHOULD BE SMOOTH.
CAUTION: SHUT OFF THE MAIN GAS SUPPLY BEFORE REMOVING
END CAP TO PREVENT GAS FROM FILLING THE WORK AREA. TEST
FOR GAS LEAKAGE WHEN INSTALLATION IS COMPLETE.

3 69-0814—1
Install Gas Control
1. Thisgascontrolcan bemountedfrom 0to90 degrees
inany direction from the vertical positionof the gas control
knobs.
2. Mount the gas control so gas flow is in the direction
of the arrows on the bottom of the controls.
3. Thread pipe for insertion into the gas control mani-
fold. Do not thread pipe too far. Manifold distortion or
malfunction can result if the pipe is inserted too deeply into
the gas control. Refer to Table 2.
4. Apply a moderate amount of good quality pipe com-
pound (do not use Teflon tape) to pipe only, leaving two
TABLE 2—NPT PIPE THREAD LENGTH IN IN.
end threads bare. On LP installations, use compound resis-
tant to LP gas. Refer to Fig. 2.
5. Remove seals over gas control inlet and outlet if
necessary.
6. Connect pipe to gas control inlet and outlet. Use a
wrench on the manifold rather than on the gas control.
Refer to Figs. 3 and 4.
Fig. 2—Use moderate amount of pipe compound.
Pipe
Size Thread Pipe This Amount Maximum Depth Pipe Can Be Inserted Into Control
3/4 13/16 3/4
1 1-1/16 1
Fig. 3—Top view of gas control.
Fig. 4—Proper use of wrench on gas control manifold.
INLET
PRESSURE TAPS
GAS CONTROL KNOBS
M9080
OUTLET
PRESSURE TAPS
PILOT ADJUSTMENT (UNDER CAP SCREW)
PILOT OUTLET
OUTLET
INLET
ON
OFF
ON
OFF
WIRING HARNESS
M9367
APPLY WRENCH
TO MANIFOLD ONLY
TWO IMPERFECT
THREADS GAS CONTROL
THREAD PIPE THE AMOUNT
SHOWN IN TABLE FOR
INSERTION INTO GAS CONTROL
APPLY A MODERATE AMOUNT OF
PIPE COMPOUND TO PIPE ONLY
(LEAVE TWO END THREADS BARE).
M8052
PIPE

69-0814—1 4
Connect Pilot Gas Tubing
1. Cut tubing to desired length and bend as necessary
for routing to pilot burner. Do not make sharp bends or
deform the tubing. Do not bend tubing at gas control or
pilot burner after compression fitting has been tightened
because this can result in gas leakage at the connection.
2. Square off and remove burrs from end of tubing.
3. Unscrew compression fitting from the pilot outlet
(Fig. 3). Slip the compression fitting over the tubing and
slide out of the way.
NOTE: When replacing a entire gas control, cut off old
compression fitting and replace with the new compres-
sion fitting provided on the gas control. Never use the
old compression fitting because it may not provide a
gas-tight seal.
4. Push tubing into the pilot gas tapping on the outlet
end of the control until it bottoms. While holding tubing all
the way in, slide compression fitting into place, engage
threads and turn until finger tight. Then tighten one more
turn with wrench. Do not over tighten. Refer to Fig. 5.
5. Connectother endoftubing to pilotburneraccording
to pilot burner manufacturer instructions.
WIRING
Follow the wiring instructions furnished by the appliance
manufacturer, if available, or use the general instructions
provided.
Fig. 5—Always use new compression fitting.
Fig. 6—VR8404 wiring connections in intermittent ignition system with S86.
24V
(2)
24V
(1) (GND)
S86F,H/S860D
MV MV
MV/PV MV/PV
PV PV
GND
(BURNER)
41
1
1
2
3
4
2
3
3
L1
(HOT)
L1
(HOT)
L2
L2
THERMOSTAT OR
CONTROLLER
LIMIT
CONTROLLER
VR8404
GAS
CONTROL
PILOT
BURNER
GROUND
PILOT GAS
SUPPLY
Q345, Q364, Q348, Q362,
Q381 PILOT BURNER/
IGNITER-SENSOR
AIR PROVING
SWITCH
COMBUSTION
AIR BLOWER
RELAY
COMBUSTION
AIR BLOWER
MOTOR
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
ALTERNATE LIMIT CONTROLLER LOCATION.
MAXIMUM CABLE LENGTH 3 FEET [0.9 METER].
CONTROLS IN 24V CIRCUIT MUST NOT BE IN GROUND LEG TO TRANSFORMER.
M8055
QUICK
CONNECTS
All wiring including insulated quick connect terminals
mustcomplywithapplicableelectricalcodesandordinances.
Disconnectpowersupplybeforemakingwiringconnec-
tions to prevent electrical shock or equipment damage.
1. Checkthe power supply rating on the gascontroland
make sure it matches the available supply. Install trans-
former, thermostat, and other controls as required.
2. Connect control circuit to gas control terminals. See
Figs. 3 and 6 or 7.
3. Adjust thermostat heat anticipator to 1.4A rating
stamped on gas control.
GAS CONTROL BODY
TIGHTEN NUT ONE TURN
BEYOND FINGER TIGHT
FITTING BREAKS OFF AND CLINCHES
TUBING AS NUT IS TIGHTENED
TO
BURNER
M3076A

5 69-0814—1
L1
(HOT)
L2
1
1
2
3
4
2
4
3
M8053
S8610F,H
MV MV/PV PV GND
(BURNER) 24V
GND 24V TH-W
VENT
DAMPER
PLUG SPARK
WIRING
HARNESS
THERMOSTAT
D80D VENT
DAMPER
LIMIT
CONTROLLER
PILOT
BURNER
GROUND
IGNITER
SENSOR
POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.
ALTERNATE LIMIT CONTROLLER LOCATION.
CONTROLS IN 24V CIRCUIT MUST NOT BE IN GROUND LEG TO TRANSFORMER.
REMOVE PLUG ONLY IF USING VENT DAMPER. FUSE BLOWS ON STARTUP WHEN PLUGIS REMOVED AND VENT DAMPER
WIRING HARNESS IS INSTALLED; THEN MODULE WILL OPERATE ONLY WHEN VENT DAMPER IS CONNECTED.
PV
PV/MV
MV
VR8404
COMBINATION
GAS CONTROL
QUICK
CONNECTS
Fig. 7—VR8404 wiring connections in intermittent ignition system with S8600.
Startup and Checkout
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH.
1. Do not force the gas control knobs. Use only
your hand to turn the gas control knobs. Never
use any tools.
2. If the gas control knobs will not operate by
hand, call a qualified service technician to
replace the entire gas control.
3. Both knobs must be in the same position for
operation or shutoff.
GAS CONTROL KNOBS SETTINGS
The gas control knobs have two settings:
OFF: Prevents pilot and main burner gas flow.
ON:Permits gas to flowinto the control body.Under
control of the thermostat and intermittent pilot
module,gas can flow to the pilot and mainburner.
NOTE: Gas controls are shipped with the gas control
knobs in the ON position.
PERFORM GAS LEAK TEST
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH.
Check for gas leaks with a rich soap and water
solution any time work is done on a gas control.
GAS LEAK TEST
1. Paint all pipe connections upstream of the gas con-
trol with a rich soap and water solution. Bubbles indicate a
gas leak.
2. If a gas leak is detected, tighten the pipe connection.
3. Stand clear while lighting main burner to prevent
injury caused from hidden gas leaks that could cause flash-
back in the appliance vestibule. Turn on the entire gas
control and light the main burner as described below.
!!

69-0814—1 6
4. With the main burner in operation, paint all pipe
joints and gas control inlet and outlet with a rich soap and
water solution.
5. Ifanothergasleakisdetected, tightenpipe connections.
6. Replace the part if gas leak cannot be stopped.
TURN ON GAS CONTROL
Rotatethe gascontrolknobs counterclockwise to
ON.
TURN ON MAIN BURNER
Follow instructions provided by appliance manufac-
turer or turn up thermostat to call for heat.
ADJUST THE PILOT BURNER FLAME
The pilot flame should envelop 3/8 to 1/2 inch [10 to
13 millimeters] of the igniter-sensor tip. Refer to Fig. 8. To
adjust the pilot flame.
1. Remove the pilot adjustment cover screw. Refer to
Fig. 3.
2. Turn the inner adjustment screw clockwise to
decrease or counterclockwise to increase the pilot
flame.
3. To prevent gas leakage replace the cover screw after
adjustment.
Fig. 8—Proper flame adjustment.
CHECK GAS INPUT TO MAIN BURNER
CAUTION
1. Do not exceed the input rating stamped on the
appliance nameplate, or manufacturer recom-
mended burner orifice pressure for the size
orifice(s) used. Make certain the primary air
supply to the main burner is properly adjusted
for complete combustion (refer to the appli-
ance manufacturer instructions).
2. WHEN CHECKING GAS INPUT BY
CLOCKING THE GAS METER:
• Make sure that the only gas flow through
the meter is that of the appliance being
checked.
• Makecertainthatotherappliancesareturned
off with pilot burners extinguished (or de-
duct that gas consumption from the meter
reading).
• Convert the flow rate to Btuh as described in
the Gas Controls Handbook, form 70-2602,
and compare to the Btuh input rating on the
appliance nameplate.
Standard-Opening and Slow-Opening Pressure
Regulator
1. The gas control outlet pressure should match the
manifold pressure listed on the appliance nameplate.
2. With the main burner operating, check the gas con-
trol flow rate using the meter clocking method.
3. If the desired gas flow rate is not as stamped on the
control, check the gas control inlet pressure using a ma-
nometer atthe inletpressure tap. Regulatorsarefixed.They
are not adjustable. If the inlet pressure is in the normal
range (refer to Table 3), replace the entire gas control.
Otherwise, take the necessary steps to provide proper gas
pressure to the gas control.
!
TABLE 3—PRESSURE REGULATOR SPECIFICATION PRESSURES IN IN. WC [kPa].
Factory Set Outlet Pressure
Model Type of Gas Nominal Inlet Pressure Step Full Rate
H (Slow-opening) Natural 7.0 [1.7] — 3.0 - 5.0
[0.7 - 1.2]
LP 14.0 [3.9] — 8.0 - 12.0
[2.0 - 3.0]
M (Standard) Natural 7.0 [1.7] — 3.0 - 5.0
[0.7 - 1.2]
LP 14.0 [3.9] — 8.0 - 12.0
[2.0 - 3.0]
P (Step-opening) Natural 7.0 [1.7] 0.7, 0.9, 1.2, 1.7,
[0.17, 0.22, 0.30, 0.42] 3.0 - 5.0 [0.7 - 1.2]
LP 14.0 [3.9] 1.4, 2.5, 4.0, 5.5
[0.35, 0.62, 1.0, 1.4] 8.0 - 12.0 [2.0 - 3.0]
NOTE: Factory set outlet pressure is not field adjustable.
PROPER FLAME
ADJUSTMENT
IGNITER-
SENSOR
M3080A
3/8 TO 1/2 INCH
[10 TO 13 mm]

7 69-0814—1
Step-Opening Pressure Regulator
1. The gas control outlet pressure should match the
manifold pressure listed on the appliance nameplate.
2. With the main burner operating, check the gas con-
trol flow rate using the meter clocking method.
3. If desired flow rate is not as stamped on the control,
check the inlet pressure using a manometer at inlet pres-
sure tap or upstream of the gas control. Regulators are
fixed.Theyarenotadjustable. If the inlet pressure isinthe
normal range (refer to Table 3), replace the entire gas
control. Otherwise, take the necessary steps to provide
proper gas pressure to the gas control.
4. Carefully check main burner lightoff at the step pres-
sure. Make sure the main burner lights smoothly and
without flashback to the orifice and that all ports remain
lit. Cycle the main burner several times, allowing at least
30 seconds between cycles for the regulator to resume the
step function. Repeat after allowing main burner to cool.
CHECK SAFETY SHUTDOWN PERFORMANCE
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH.
Performthe safety shutdown test any time work is
done on a gas system.
NOTE: Read steps 1 through 7 below before starting, and
compare to the safety shutdown or safety lockout tests
recommended for the intermittent pilot (IP) module.
Where they differ, use the procedure recommended for
the module.
1. Turn off knobs on entire gas control.
2. Set thermostat or controller above room temperature
to call for heat.
3. Watch for spark at pilot burner either immediately or
following prepurge. See IP Module specifications.
4. If module has timed ignition, time the length of the
spark operation. See IP Module specifications.
5. After the module locks out, open gas control knobs
and make sure there is no gas flow to the pilot or main
burner. With modules that continue spark until pilot lights
or system is shut down manually, pilot should light when
gas control knobs are opened.
6. Setthermostat below room temperatureand wait one
minute.
7. Operate system through one complete cycle to make
sure all controls operate properly.
Maintenance
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH.
Do not disassemble the gas control or either
valve. They contain no replaceable components.
Attempted disassembly or repair can damage the
gas control.
Regularpreventivemaintenance isimportantinapplica-
tions such as commercial cooking, agricultural and indus-
trial operations that place a heavy load on system controls
because:
• In many such applications, particularly commercial
cooking, the equipment operates 100,000 to 200,000
cyclesper year . Such heavycycling can wear out the
gas control in one to two years.
• Exposure to water, dirt, chemicals and heat can dam-
agethe gas controlandshut down the controlsystem.
Themaintenanceprogramshouldincluderegularcheck-
out of the entire gas control; see Startup and Checkout
section. To check out the control system, see the appliance
manufacturer literature. Maintenance frequency must be
determined individually for each application. Some con-
siderations are:
•Cyclingfrequency.Appliancesthatmaycycle100,000
times annually should be checked monthly.
•Intermittent use. Appliances that are used seasonally
shouldbecheckedbeforeshutdownandagainbefore
the next use.
•Consequence of unexpected shutdown. Where the
cost of an unexpected shutdown would be high, the
system should be checked more often.
•Dusty, wet, or corrosive environment. Since these
environmentscancause the gas control to deteriorate
more rapidly, the system should be checked more
often.
If the gas controls will be exposed to high ammonia
conditions;e.g.,thoseusedingreenhousesoranimal barns,
contact your Honeywell sales representative to request a
gas control with corrosion resistant construction.
The entire gas control should be replaced if:
• It does not perform properly during checkout or
troubleshooting.
• The gas control knobs are hard to turn.
• The gas control is likely to have operated for more
than 200,000 cycles.
Service
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH.
Do not disassemble the gas control or either
valve. They contain no replaceable components.
Attempted disassembly or repair will damage the
gas control.
CAUTION
Do not apply a jumper across or short the valve
leadwires. Doing so can burn out the heat antici-
pator in the thermostat or damage the electronic
module.
IMPORTANT: Allow 60 seconds after shutdown before
re-energizing step-opening model to assure lightoff
at step pressure.
!
!
!
!

69-0814—1 8
QUALITY IS KEY
Home and Building Control Home and Building Control Helping You Control Your World
Honeywell Inc. Honeywell Limited—Honeywell Limitée
1985 Douglas Drive North 740 Ellesmere Road
Golden Valley, MN 55422 Scarborough, Ontario
M1P 2V9
Printed in U.S.A.
IF MAIN BURNER WILL NOT COME ON WITH
CALL FOR HEAT
1. Make sure gas control knobs are in the ON position.
2. Adjust thermostat several degrees above room
temperature.
3. Using an ac voltmeter, check for 24V at the gas
control.
• If pilot lights, measure across MV/PV and MV.
• If pilot does not light, measure across MV/PV and
PV before safety lockout occurs.
4. If no voltage is present, check control circuit for
proper operation.
5. If 24V is present, replace the entire gas control.
INSTRUCTIONS TO THE USER
FOR YOUR SAFETY, READ BEFORE LIGHTING
WARNING
IF YOU DO NOT FOLLOW THE
WARNINGS BELOW AND THE LIGHTING
INSTRUCTIONS EXACTLY, A FIRE OR
EXPLOSION CAN RESULT WITH
PROPERTY DAMAGE, PERSONAL
INJURY OR LOSS OF LIFE.
Follow these warnings exactly:
1. Pilotflame is lit automatically. Do not light the
pilot flame manually.
2. Beforelightingpilotburnerflame,smellaround
the appliance for gas. Be sure to smell next to
the floor because LP gas is heavier than air.
3. IF YOU SMELL GAS:
• Turn off the gas supply at the appliance
service valve. On LP gas systems, turn off
gas supply at the gas tank.
• Do not light any appliances.
• Do not touch electrical switches or use the
phone.
• Leave the building and use a neighbor’s
phone to call your gas supplier.
• If you can not reach your gas supplier, call
the fire department.
4. Do not force the gas control knob. Use only
your hand to push down or turn the gas control
knob. Never use any tools. If the gas control
knob will not operate by hand, call a qualified
service technician to replace the entire gas
control. Force or attempted repair can result in
a fire or explosion.
5. Call a qualified service technician to replace
the entire gas control if it has been flooded
with water.
6. Replace the entire gas control in the event of
any physical damage, tampering, bent termi-
nals, missing or broken parts, stripped threads,
or evidence of exposure to heat.
IMPORTANT: Follow the operating instructions pro-
videdbythemanufacturerofyour heatingappliance.
The information below will be of assistance in a
typical control application, but the specific controls
used and the procedures outlined by the manufac-
turer of your appliance may differ, and require spe-
cial instructions.
TO TURN ON THE APPLIANCE
STOP: READ THE WARNING ABOVE
The pilot flame is lit automatically. Do not attempt to
manually light the pilot. If the appliance does not turn on
when the thermostat is set several degrees above room
temperature, follow these instructions:
1. Set the thermostat to its lowest setting to reset the
safety control.
2. Disconnect all electric power to the appliance.
3. Remove the gas control access panel.
4. Turn both of the gas control knobs clockwise
to OFF.
5. Wait five minutes to clear any unburned gas. If you
then smell gas, STOP! Follow step 3 in the Warning in the
Instructions To The User section. If you do not smell gas,
continue with the next step.
6. Turn both of the gas control knobs counterclock-
wise to ON.
7. Replace the gas control access panel.
8. Reconnect all electric power to the appliance.
9. Set the thermostat to the desired setting.
10. If the appliance does not turn on, set the gas control
knobs to OFF, turn off the upstream appliance valve, and
contact a qualified service technician for assistance.
TURNING OFF THE APPLIANCE
VACATION SHUTDOWN: Set the thermostat to the de-
sired room temperature while you are away.
COMPLETE APPLIANCE SHUTDOWN: Turn both gas
control knobs clockwise to OFF. Do not force.
Turn off the upstream appliance valve and disconnect
power supply. Appliance will be completely shut off.
Toresumenormaloperation,turnontheupstreamappli-
ance valve and connect the power supply; then follow the
procedure above.
!