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CHECKING GAS INPUT WITH MANOMETER
NOTE: NOTE:Both the inlet and outlet pressure taps
have a captive screw.
1. Be sure the gas control knob is in the PILOT
position.
2. Loosen, but do not remove the outlet tap captive
screw.
3. Attach a plastic tube with a 1/4 in. shell ID and
connect the manometer.
4. Turn the gas control knob to the ON position.
5. Check the outlet tap pressure.
6. Turn the gas control knob to the OFF position.
7. Shut off the gas supply at the manual valve in the
gas piping to the appliance or, for LP, at the tank.
8. Loosen, but do not remove the inlet tap captive
screw.
9. Attach a plastic tube with a 1/4 in. shell ID and
connect the manometer.
10. Turn on the gas supply at the manual valve.
11. Check the inlet tap pressure.
12. Turn the gas control knob to the OFF position.
13. Repeat the Gas Leak Test at the pressure tap with
the main burner operating.
14. Always tighten the screws in the pressure taps
after disconnecting the plastic tubes.
Check Safety Shutdown Performance
WARNING
Fire or Explosion Hazard.
Can cause property damage,
serious injury or death.
Perform the safety shutdown test any time
work is done on a gas system.
1. Place gas control knob in PILOT position. Main
burner should go off and pilot should remain lit.
2. Extinguish pilot flame.The RV8310D pilot gas flow
stops within thirty seconds. Pilot gas safety shutoff
proves complete shutdown because the safety
shutoff valve prohibits main burner and pilot gas
flow.
3. Relight pilot burner and operate the system
through one complete cycle to ensure all controls
operate properly.
RV8310D,E MILLIVOLT RECEIVER/ MODULATING GAS VALVE
MAINTENANCE
WARNING
Fire or Explosion Hazard.
Can cause property damage,
serious injury or death.
Do not attempt to take apart the gas valve or
clean it. Improper assembly and cleaning can
cause unreliable operation.
Regular preventive maintenance is important in
applications that place a heavy load on system controls.
Exposure to water, dirt, chemicals and heat can damage
the gas valve and shut down the control system.
The maintenance program should include regular system
checkout as outlined in the Checkout section, and
checkout of the control system as described in the
appliance manufacturer literature.
Maintenance frequency must be determined individually
for each application:
• Cycling frequency—Appliances that cycle 20,000
times annually should be checked monthly.
• Intermittent use—Appliances that are used seasonally
should be checked before shutdown and 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—Because these
environments can cause the gas valve to deteriorate
more rapidly, the system should be checked more
often.
Any valve should be replaced if it does not perform
properly on checkout or service. In addition, replace any
module if it is wet or looks like it has ever been wet.
7
66-1106—2
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