Honeywell VR4305 User manual

1 69-0696—1J.D. • Rev. 1-94 • ©Honeywell Inc. 1994 • Form Number 69-0696—1
VR4305
Direct Ignition
Combination Gas Control
Application
These direct ignition combination gas controls are used
in gas-fired appliances with capacities up to 300 feet3/hour
at 1 inch wc pressure drop [8.5 meters3/hour at 0.25 kPa]
fornaturalgas.Theyincludeamanualvalve,twoautomatic
operators, a pressure regulator, and a conduit cover. See
Table 1 for temperature ranges and regulator types.
BODY PATTERN: Straight-through.
INLET X OUTLET SIZES AVAILABLE: 1/2 x 3/4 inch.
ADAPTERS:Adaptersavailablefor1/2and3/4inchstraight
and angle connections. Refer to Table 3.
ELECTRICAL RATINGS:
Voltage and Frequency: 120 Vac, 60 Hz.
Thermostat Heat Anticipator Setting: 0.14A.
Current Draw: 0.14A.
CAPACITY:
Size
(Inlet x Outlet) Capacity (at 1 inch wc pressure drop)
a
Minimum
Regulated Capacity Maximum Regulated Capacity
1/2 x 1/2 240 feet
3
/hour
[6.8 meter
3
/hour] 30 feet
3
/hour
[0.8 meter
3
/hour] 340 feet
3
/hour
[9.6 meter
3
/hour]
1/2 x 3/4 270 feet
3
/hour
[7.6 meter
3
/hour] 30 feet
3
/hour
[0.8 meter
3
/hour] 370 feet
3
/hour
[10.5 meter
3
/hour]
3/4 x 3/4 300 feet
3
/hour
[8.5 meter
3
/hour] 30 feet
3
/hour
0.8 meter
3
/hour] 415 feet
3
/hour
[11.8 meter
3
/hour]
aCapacitybasedon1000Btu/feet3,0.64 specificgravitynaturalgasat1inch wc pressuredrop[37.3MJ/meter3,0.64specific
gravity natural gas at 0.25 kPa pressure drop].
TABLE 1—TEMPERATURE RANGES AND
REGULATOR TYPES.
Model
Number
Ambient
Temperature
Range Regulator Type
VR4305H 0°F to 175°F
[-18°C to +79°C] Slow-opening
VR4305M -40°F to 175°F
[-40°C to +79°C] Standard-opening
VR4305P -40°F to 175°F
[-40°C to +79°C] Step-opening
Use conversion factors in Table 2 to convert capacities
for other gases.
TABLE 2—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
TABLE 3—ADAPTER (FLANGE) PART NUMBERS.
Part Number
Inlet/
Outlet
Pipe Size Flange Type
Without
Hex
Wrench
With
Hex
Wrench
1/2 inch NPT Straight 393690-6 393690-16
Elbow 393690-3 393690-13
3/4 inch NPT Straight 393690-4 393690-14
Elbow 393690-5 393690-15
NOTE: Flange Kits include one flange with attached O-ring
and four mounting screws.
APPROVALS:
American Gas Association design certificate:
L2025007.
Canadian Gas Association design certificate:
L2025007.
Australian Gas Association design certificate:
Applied for.
Delta C.

69-0696—1 2
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.
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH
Follow these warnings exactly:
1. Disconnectpower supply before wiring to pre-
vent electrical shock or equipment damage.
2. To avoid dangerous accumulation of fuel gas,
turn off gas supply at the appliance service
valve before starting installation, and perform
Gas Leak Test after completion of installation.
3. Always install sediment trap in gas supply line
to prevent contamination of gas control.
4. Do not force the gas control knob. Use only
your hand to turn the gas control knob. Never
use any tools. If the gas control knob will not
operatebyhand,callaqualified service techni-
cian to replace the gas control. Force or at-
tempted repair can result in fire or explosion.
CAUTION
1. Never apply a jumper across or short the valve
coil terminals. This can burn out the heat an-
ticipator in the thermostat or damage the elec-
tronic direct ignition (DI) module.
2. When a gas control is installed external to the
appliance,aconduitcovermustbeinstalled.See
Fig. 1. Place the conduit cover over the flange,
then rotate the conduit cover into position.
IMPORTANT: These gas controls are shipped with pro-
tective 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.
CONVERTING BETWEEN NATURAL AND LP GAS
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH
Do not attempt to use a gas control set for natural
gas on LP gas or a gas control set for LP gas on
natural gas.
To convert a gas control from natural to LP gas or from
LP to natural gas, contact your Honeywell representative.
Convertstandard or slow opening gas controls from one
gas to another with a conversion kit (ordered separately).
Order part number 393691 to convert from natural to LP
gas. Order part number 394588 to convert from LP to
natural gas. Step-opening gas controls can not be converted.
INSTALL ADAPTERS TO GAS CONTROL
Install adapters to gas control as follows:
Flanges
1. Choosethe appropriate flangefor your application.
2. Remove seal over gas control inlet or outlet.
3. Make sure the O-ring fits into the flange groove.
If the O-ring is not attached or is missing, do not
use the flange.
4. With the O-ring facing the gas control, align the
screwholesonthegascontrolwiththeholesinthe
flange. Insert and tighten the screws provided
with the flange. See Fig. 1. Tighten the screws to
25 inch-pounds of torque to provide a gas-tight
seal.
Bushings
1. Remove seal over gas control inlet or outlet.
2. Apply moderate amount of good quality pipe
compound to bushing, leaving two end threads
bare. See Fig. 3. On LP installation, use com-
pound resistant to LP gas. Do not use Teflon tape.
3. Insert bushing in gas control and carefully thread
pipe into the bushing until tight.
USING ADAPTERS TO SOLVE SWING RADIUS
PROBLEMS
In some field service applications, it is difficult or im-
possible to thread the gas control onto the gas supply pipe
because of space limitations. This problem can be resolved
for many installations by using an adapter. Install the adap-
ter on the end of the supply pipe in place of the gas control
by following the same precautions and instructions that are
used for installing the gas control. After the adapter is
installed, attach the gas control to the adapter as outlined
above.
NOTE: Using an adapter increases the overall length of the
gas control.

3 69-0696—1
Fig. 1—Install flange to gas control.
M3099A
VALVE OUTLET
FLANGE
9/64 INCH HEX SCREWS (4)
1DO NOT OVERTIGHTEN SCREWS.
TIGHTEN TO 25 INCH POUNDS.
1
6/32 INCH ROUND
SCREWS (1)
CONDUIT
COVER
LOCATION
The combination gas control is mounted in the appli-
ance vestibule on the gas manifold. If this is a replacement
installation, mount the gas control in the same location as
the old control.
Do not locate the gas control where it can be affected by
steam cleaning, high humidity, dripping water, corrosive
chemicals, dust or grease accumulation, or excessive heat.
To safeguard proper operation, follow these guidelines:
• Locate gas control in a well-ventilated area.
• Mount 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 each component.
• Covergas controlwhen theappliance iscleaned 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 Piping to Gas Control
All piping must comply with applicable codes and ordi-
nances or with the National Fuel Gas Code (ANSI Z223.1
NFPA No. 54), whichever applies. Be sure tubing installa-
tion complies 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 gas
control. See Fig. 2.
Install Gas Control
1. Thisgascontrol can bemountedfrom 0to90 degrees
inany direction from the vertical position of the gas control
knob.
2. Mount the gas control so gas flow is in the direction
of the arrow on the bottom of the gas control.
Fig. 2—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. Thread pipe the amount shown in Table 4 for inser-
tion into the gas control or flange. Do not thread pipe too
far. Valve distortion or malfunction can result when the
pipe is inserted too deeply into the gas control.
4. Apply a moderate amount of good quality pipe com-
pound (do not use Teflon tape) to pipe only, leaving two
end threads bare. On LP installations, use compound resis-
tant to LP gas. Refer to Fig. 3.
5. Remove seals over gas control inlet and outlet if
necessary.
6. Connect pipe to gas control inlet and outlet. Use
wrench on the square ends of the gas control. If a flange is
used, place wrench on flange rather than on gas control.
Refer to Figs. 4 and 5.
TABLE 4—NPT PIPE THREAD LENGTH IN (IN.).
Pipe
Size Thread Pipe this Amount
Maximum Depth
Pipe can be
Inserted into
Control
3/8 9/16 3/8
1/2 3/4 1/2
3/4 13/16 3/4
Fig. 3—Use moderate amount of pipe compound.
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).
M3075A
PIPE

69-0696—1 4
Fig. 4—Top view of gas control. Fig. 6—VR4305 Wiring Connections in S87
Direct Ignition System.
IGNITION MODULE
L1
(HOT)
L2
LIMIT CONTROLLER
Q347 IGNITER-SENSOR
120 V (GND) VALVE
VALVE
GND
POWER SUPPLY. PROVIDE DISCONNECT MEANS
AND OVERLOAD PROTECTION AS REQUIRED.
ALTERNATE LIMIT CONTROLLER LOCATION. M3088
BURNER
120 V VR4305
COMBINATION
GAS CONTROL
L2
L1
21
1
2
4. Make sure the conduit cover is in position and se-
cured to the gas valve with the screw provided. See Fig. 1.
5. Adjust thermostat heat anticipator as instructed in
appliance manual (i.e., usually 0.1A).
WIRING
Follow the wiring instructions furnished by the appli-
ance manufacturer, if available, or use the general instruc-
tions provided below. Where these instructions differ from
the appliance manufacturer, follow the appliance manu-
facturer instructions.
All wiring including insulated quick connect terminals
mustcomplywithapplicableelectricalcodesandordinances.
Disconnect power supply before making wiring con-
nections to prevent electrical shock or equipment damage.
1. Checkthe power supplyrating on the gas control and
make sure it matches the available supply. Install thermo-
stat and other controls as required.
2. When the gas control is installed external to the
appliance, install the conduit cover on the conduit fitting.
Do not secure the conduit cover at this time.
3. Connect control circuit to gas control terminals. See
Figs. 4 and 6.
NOTE: Use leadwires with insulated terminals.
OUTLET
PRESSURE
TAP
INLET OUTLET
WIRING
TERMINALS (2)
INLET
PRESSURE TAP
PRESSURE REGULATOR
ADJUSTMENT (UNDER
CAP SCREW)
CONVENIENCE
TERMINALS (2)
(OPTIONAL)
GAS
CONTROL
KNOB
M9154
Fig. 5—Proper use of wrench on gas control with and without flanges.
APPLY WRENCH
FROM TOP OR
BOTTOM OF GAS
CONTROL TO
EITHER SHADED AREA
WHEN FLANGE IS NOT USED
APPLY WRENCH
TO FLANGE ONLY
WHEN FLANGE IS USED
M3085A

5 69-0696—1
Startup and Checkout
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH
1. Do not force the gas control knob. Use only
your hand to turn the gas control knob. Never
use any tools.
2. If the gas control knob will not operate by
hand, call a qualified service technician to re-
place the gas control.
GAS CONTROL KNOB SETTINGS
The gas control knob settings are as follows:
OFF: Prevents gas flow to main burner.
ON: Permits main burner gas flow. Under control of the
thermostat and direct ignition module, gas can flow
to the main burner.
NOTE: Gas controls are shipped with the gas control knob
in the ON position.
TURN ON SYSTEM
Rotate the gas control knob counterclockwise to
ON.
TURN ON MAIN BURNER
Follow instructions provided by appliance manufac-
turer or turn up thermostat to call for heat.
PERFORM GAS LEAK TEST
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH
Check for gas leaks with rich soap and water
solution anytime 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. Light the main burner.
4. With the main burner in operation, paint all pipe
joints (including flanges) and gas control inlet and outlet
with rich soap and water solution.
5. If another gas leak is detected, tighten flange screws,
joints, and pipe connections.
6. Replace the part if gas leak can not be stopped.
CHECK AND ADJUST 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. IF CHECKING GAS INPUT BY CLOCK-
ING 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 form 70-2602, Gas Controls Handbook,
and compare to the Btuh input rating on the
appliance nameplate.
3. IF CHECKING GAS INPUT WITH A MA-
NOMETER (PRESSURE GAUGE):
• To connect the manometer, be sure the gas
control knob is in the OFF position before
removing the outlet pressure tap plug.
• When removing the manometer, turn the
gas control knob back to OFF and replace
the outlet pressure tap plug.
• Shut off the gas supply at the appliance
service valve, or at the gas tank for LP gas,
beforeremoving the outletpressuretapplug
and before disconnecting the manometer
and replacing the outlet pressure tap plug.
• Perform the Gas Leak Test at the outlet
pressure tap plug.
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 by using the meter clocking method or check
the gas pressure using a manometer connected to the gas
control outlet pressure tap. Refer to Fig. 4.
3. If necessary, adjust the pressure regulator to match
theappliance rating.Refer to Table 5 or 6 forthe factoryset
nominal outlet pressures and adjustment setting ranges.
a. Removethe pressure regulator adjustment capscrew.
b. Using a screwdriver, turn the inner adjustment screw
clockwise to increase or counterclockwise
to decrease the main burner gas pressure.
c. Always replace the cap screw and tighten firmly to
safeguard proper operation.

69-0696—1 6
4. If the desired outlet gas pressure or gas flow rate can
not be achieved by adjusting the gas control, check the gas
control inlet pressure by using a manometer at the inlet
pressure tap. If the inlet pressure is in the normal range
(refer to Table 5 or 6), replace the gas control. Otherwise,
take the necessary steps to provide proper gas pressure to
the gas control.
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 by using the meter clocking method or check
thegas pressure by using amanometer connected to the gas
control outlet pressure tap. Refer to Fig. 4.
3. If necessary, adjust the pressure regulator to match
the appliance rating. Refer to Table 5 or 6 for factory set
nominal outlet pressures and adjustment ranges.
a. Removethe pressure regulator adjustment capscrew.
b. Using a screwdriver, turn the inner adjustment screw
clockwise to increase or counterclockwise
to decrease the main burner gas pressure.
c. Always replace the cap screw and tighten firmly to
safeguard proper operation.
4. If desired outlet pressure or flow rate can not be
achieved by adjusting the gas control, check the inlet pres-
sure by using a manometer at inlet pressure tap or upstream
ofthegas control. Ifthe inlet pressureis in thenormalrange
(refer to Table 5 or 6), replace the existing gas control.
Otherwise, take the necessary steps to provide proper gas
pressure to the gas control.
5. Carefully check main burner lightoff at the step
pressure. 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.
Readjust the full rate outlet pressure, if necessary, to im-
prove lightoff characteristics.
CHECK SAFETY SHUTDOWN PERFORMANCE
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH
Perform the safety shutdown test anytime 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
recommendedforthedirectignition(DI)module.Where
they differ, use the procedure recommended for the
module.
1. Turn off gas supply.
2. Set the thermostat or controller above room tem-
perature to call for heat.
3. Watch for ignition spark or for glow at hot surface
igniter either immediately or following prepurge. See DI
module specifications.
4. If module has timed ignition, time the length of the
igniter operation. See DI module specifications.
5. After the module locks out, open gas control knob
and make sure there is no gas flow to the main burner.
6. Set the thermostat below room temperature and wait
one minute.
7. Operate system through one complete cycle to make
sure all controls operate properly.
Outlet Pressure
Nominal Factory
Outlet Setting Adjustment Setting Range
Model Type of Gas Nominal Inlet Pressure Range Step Full Rate Step Full Rate
Standard-, Natural 1.2 - 1.7 — 0.9 — 0.7 - 1.2
Slow-opening LP 2.9 - 3.9 — 2.7 — 2.0 - 3.0
Step-opening Natural 1.2 - 1.7 0.2 0.9 — 0.7 - 1.2
LP 2.9 - 3.9 0.9 2.7 — 2.0 - 3.0
TABLE 6—PRESSURE REGULATOR SPECIFICATION PRESSURES IN kPa.
Outlet Pressure
Nominal Factory
Outlet Setting Adjustment Setting Range
Model Type of Gas Nominal Inlet Pressure Range Step Full Rate Step Full Rate
Standard-, Natural 5.0 - 7.0 — 3.5 — 3.0 - 5.0
Slow-opening LP 12.0 - 14.0 — 10.0 — 8.0 - 12.0
Step-opening Natural 5.0 - 7.0 0.9 3.5 — 3.0 - 5.0
LP 12.0 - 14.0 2.2 10.0 — 8.0 - 12.0
TABLE 5—PRESSURE REGULATOR SPECIFICATION PRESSURES IN INCHES WC.

7 69-0696—1
Maintenance
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH
Improper cleaning or reassembly can cause gas
leakage.When cleaning, besure thatthe control is
reassembled properly and perform gas leak test.
Regularpreventivemaintenanceisimportant in applica-
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
cycles per year. Such heavy cycling can wear out the
gas control in one to two years.
• Exposure to water, dirt, chemicals and heat can dam-
agethe gas controland shutdown the control system.
Themaintenance program shouldincluderegularcheck-
out of the gas control; see Startup and Checkout, section.
To check out the control system, see the appliance manufac-
turer literature. Maintenance frequency must be determined
individually for each application. Some considerations are:
•Cyclingfrequency.Appliancesthatmaycycle100,000
times annually should be checked monthly.
•Intermittent use. Appliances that are used seasonally
shouldbe checkedbefore shutdownand again before
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
environmentscan cause the gas control to deteriorate
more rapidly, the system should be checked more
often.
If the gas control will be exposed to high ammonia
conditions; i.e., those used in greenhouses or animal barns,
contact your Honeywell sales representative to request a
gas control with corrosion resistant construction.
The gas control should be replaced if:
• It does not perform properly on checkout or
troubleshooting.
• The gas control knob is hard to turn or push down, or
it fails to pop back up when released.
• 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; it contains no
replaceable components. Attempted disassembly
or repair can damage the gas control.
CAUTION
Do not apply a jumper across or short the valve
coil terminals. Doing so may burn out the heat
anticipator in the thermostat or damage the elec-
tronic module.
IMPORTANT: Allow 60 seconds after shutdown before
re-energizing step-opening model to assure lightoff
at step pressure.
IF MAIN BURNER WILL NOT COME ON WITH
CALL FOR HEAT
1. Makesure the gas control knob is in the ON position.
2. Adjust the thermostat several degrees above room
temperature.
3. Using an ac voltmeter, check for voltage across L1
and L2 terminals of the gas control.
4. If voltage is not present, check control circuit for
proper operation.
5. If proper control circuit voltage is present, replace
gas control.
INSTRUCTIONS TO THE HOMEOWNER (FOR
YOUR SAFETY, READ BEFORE OPERATING)
WARNING
FIRE OR EXPLOSION HAZARD
CAN CAUSE PROPERTY DAMAGE,
SEVERE INJURY, OR DEATH
Follow these warnings exactly:
1. Before lighting main burner, smell around the
appliance for gas. Be sure to smell next to the
floor because LP gas is heavier than air.
2. IF YOU SMELL GAS:
• Turn off the gas supply at the appliance ser-
vice valve. On LP gas systems, turn off gas
supply at the gas tank.
• Do not light any appliances in the house.
• 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.
3. 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 gas control.
Forceor attempted repairmay resultina fireor
explosion.
4. Call a qualified service technician to replace
the gas control if it has been flooded with
water.
5. Replace the gas control in the event of any
physical damage, tampering, bent terminals,
missing or broken parts, stripped threads, or
evidence of exposure to heat.

69-0696—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.
IMPORTANT: Follow the operating instructions pro-
videdbythe manufacturer ofyourheating appliance.
The information below will be of assistance in a
typical gas control application, but the specific con-
trols used and the procedures outlined by the manu-
facturer of your appliance may differ and require
special instructions.
STOP: READ THE WARNINGS ABOVE.
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. Push in the gas control knob slightly and turn
clockwise to OFF.
5. Wait five minutes to clear out any unburned gas. If
you then smell gas, STOP! Follow step 2 in the Warning
in the Instructions To The Homeowner section. If you do
not smell gas, continue with the next step.
6. Turn the gas control knob counterclockwise 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
knob to OFF and contact a qualified service technician for
assistance.
TURNING OFF THE APPLIANCE
VACATION SHUTDOWN—Set the thermostat to the
desired room temperature while you are away.
COMPLETESHUTDOWN—Pushinthegascontrolknob
slightlyand turn clockwise toOFF. Do notforce.
Appliance will completely shut off. Follow the In-
structions to the Homeowner above to resume normal
operation.