Start-Up And Checkout - Honeywell VR8305 Quick Manual

VR8305

START-UP 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,
the gas control should be replaced by a qualified
service technician.
GAS CONTROL KNOB SETTINGS
The gas control knob has two settings:
• OFF prevents main burner gas flow.
• ON permits main burner gas flow. Under control of
the thermostat and direct ignition module, gas can
flow to the main burner.
NOTE: Controls are shipped with the gas control knob 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 rich soap and water solu-
tion any time work is done on a gas control.
GAS LEAK TEST
1. Paint all pipe connections upstream of the gas control
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 adapters) and gas control inlet and outlet with rich
soap and water solution.
5. If another gas leak is detected, tighten adapter screws,
joints, and pipe connections.
6. Replace the part if gas leak cannot be stopped.
TURN ON SYSTEM
Rotate the gas control knob counterclockwise
to ON.
TURN ON MAIN BURNER
Follow instructions provided by appliance manufacturer
or turn thermostat up to call for heat.
Start-Up and Checkout
CHECK AND ADJUST GAS INPUT TO MAIN
BURNER
CAUTION
1. Do not exceed the input rating stamped on the
appliance nameplate, or manufacturer's recom-
mended burner orifice pressure for the size ori-
fice used. Ensure the main burner primary air
supply is properly adjusted for complete com-
bustion (refer to the appliance manufacturer's
instructions).
2. IF CHECKING GAS INPUT BY CLOCKING
THE GAS METER:
• Ensure that the only gas flow through the
meter is that of the appliance being tested.
• Ensure that other appliances are turned off
and that their pilot burners are extinguished
(or deduct their gas consumptions 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.
3. IF CHECKING GAS INPUT WITH A MA-
NOMETER (PRESSURE GAUGE):
• Ensure the gas control knob is in the PILOT
position before removing the outlet pressure
tap plug to connect the manometer.
• Turn the gas control knob back to PILOT
when removing the manometer and replac-
ing outlet pressure tap plug.
• Shut off the gas supply at the appliance
service valve or, for LP gas, at the gas tank
before removing the outlet pressure tap plug
and before disconnecting the manometer to
replace the outlet pressure tap plug.
• Perform the Gas Leak Test at the inlet pres-
sure tap plug.
Standard-Opening and Slow-Opening Pressure
Regulator
1. The gas control outlet pressure should match the mani-
fold pressure listed on the appliance nameplate.
2. With the main burner operating, check the gas control
flow rate using the meter clocking method or check the gas
pressure using a manometer connected to the gas control
outlet pressure tap. Refer to Fig. 2.
3. If necessary, adjust the pressure regulator to match the
appliance rating. Refer to Table 5 or 6 for the factory set
nominal outlet pressures and adjustment ranges.
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