Honeywell 1000 Series Installation Instructions Manual page 6

VR9205R SERIES 1000 DIRECT IGNITION GAS CONTROL WITH INTEGRATED GAS/AIR MODULE
Gas Leak Test
1. Paint pipe connections upstream of the gas control
with rich soap and water solution. Bubbles indicate
a gas leak.
2. If a leak is detected, tighten the pipe connections.
3. Light the main burner. Stand clear of the main
burner while lighting to prevent injury caused from
hidden leaks that could cause flashback in the
appliance vestibule.
4. With the main burner in operation, paint the pipe
joints (including bushings) and the control inlet and
outlet with rich soap and water solution.
5. If another leak is detected, turn the gas control to
off, tighten the joints and pipe connections.
6. Replace the part if a leak cannot be stopped.
Turn On System
Push the on-off switch to the ON position.
Turn On Main Burner
Follow appliance manufacturer instructions or turn
thermostat up to call for heat.
Adjustment
Amplification Factor is NOT adjustable on this control.
Do not adjust regulator if cap is sealed.
Refer to the instructions below for making adjustments to
the offset or the maximum regulator setting if the cap is
not sealed.
IMPORTANT
1. Do not exceed input rating stamped on appli-
ance nameplate or manufacturer's recom-
mended burner orifice size(s). Make certain
primary air supply to main burner is properly
adjusted for complete combustion. Follow appli-
ance manufacturer instructions.
2. IF CHECKING GAS INPUT BY CLOCKING GAS
METER: Make certain there is no gas flow
through the meter other than to the appliance
being checked. Other appliances must remain
off with the pilots extinguished (or deduct their
consumption from the meter reading). Convert
flow rate to Btuh as described in form 70-2602,
Gas Controls Handbook, and compare to Btuh
input rating on appliance nameplate.
3. IF CHECKING GAS INPUT WITH MANOME-
TER: Make sure the gas control is in the OFF
position before removing outlet pressure tap plug
to connect manometer (pressure gauge). Also
slide the gas control switch to the OFF position
when removing the gauge and replacing the
plug. Before removing inlet pressure tap plug,
shut off gas supply at the manual valve in the
gas piping to the appliance or, for LP, at the tank.
Also shut off gas supply before disconnecting
manometer and replacing plug. Repeat Gas
Leak Test at plug with main burner operating.
Pressure Tap
The combination gas control is provided with 1/8-in. NPT
pressure tap plugs. The gas air module is provided with 9
mm O.D. tubing connections to sense the high and the
low combustion air pressure.
69-2305—03
CAUTION
To ensure a safe closing of the valves, it is
essential that power supplied to the gas valve
be disconnected.
Minimum Regulator/Offset adjustment on outlet
pressure
• If cap screw is not sealed, remove cap screw to
expose adjustment screw.
• Check gas supply pressure to the appliance with the
valve flowing gas at max using a pressure gauge
connected to the inlet pressure tap.
• Control the fan to produce the air pressure difference
stated by the appliance manufacturer.
• Energize the gas valve in order to have gas supplied to
the burner. The main burner should ignite within 3
seconds.
• Turn the minimum outlet pressure adjustment screw
slowly until the desired pressure is obtained. Turn
adjustment screw counter clockwise to increase or
clockwise to decrease outlet pressure.
• Replace and tighten cap screw and pressure tap plugs.
IMPORTANT
Adjustments must be made in the final gas valve
mounting position to avoid shift caused by the
orientation.
• Turn offset adjustment screw counter clockwise
to increase or clockwise to decrease outlet pres-
sure.
• Replace and tighten cap screw and pressure tap
plugs.
Maximum outlet pressure adjustment. See Fig. 1.
The maximum outlet pressure adjustment is used to limit
the load supplied to the main burner.
• Remove cap screw to expose regulator adjustment
screw.
• Determine the value to which the maximum outlet
pressure is to be set. Adjustments must be made when
the main burner is burning and the fan is in the
maximum air flow position.
• Turn the maximum outlet pressure adjustment screw
slowly until the desired pressure is obtained. Turn
adjustment screw clockwise to increase or counter
clockwise to decrease outlet pressure.
• Replace and tighten cap screw and pressure tap plugs.
Check Safety Shutdown Performance
WARNING
Fire or Explosion Hazard.
Can cause severe injury, death, or property
damage.
Perform the safety shutdown test any time work is
done on a gas system.
NOTE: Read steps 1 through 7 before starting, and
compare to the safety shutdown or safety
lockout tests recommended for the direct ignition
(DI) module. Where different, use the procedure
recommended for the module.
1. Turn off gas supply.
2. Set thermostat or controller above room
temperature to call for heat.
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