Carlin 301GAS Inst Manual - Manual (Page 15)

Model 301GAS burner — Instruction manual
Carlin part number MN301GAS Rev. 03/14/11
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Where appliance instructions differ from this manual, follow the appliance instructions.
5. Perform checkout procedures • fill out certificate
(continued)
Verify burner/appliance operation
Check burner/appliance/controls operation
❏ Test operating and limit controls on appliance as specified in appliance
instruction manual.
❏ Check operation of the 60200FR primary control by forcing Latch-up
(three consecutive lockouts during the same call for heat): Close the
main manual gas cock. Temporarily jumper the low gas pressure
switch. Then cycle the burner. Press the reset button to reset when the
60200FR control locks out on flame failure. Do this two times and the
control should enter Latch-up. See page 13 to reset control. Remove
the jumper from the low gas pressure switch.
❏ Check the airflow switch
Cycle the burner off with the appliance controls. Then turn off power to
the appliance. Remove both of the sensing lines from the airflow switch
by loosening the plastic sealing nuts and pulling the aluminum sensing
tubes out of the socket.
With the sensing line removed, turn on power to the appliance and set the
controls to call for heat. Watch the manometer on the manual gas valve
outlet pressure tap. After the control performs its pre-purge, it will try to
turn on the gas valves. The gas valves should not open with the airflow
sensor line removed. Set the controls to stop the call for heat and turn
off power to the appliance. If the airflow switch operates correctly (gas
valves don't open), continue with normal operation. If the ariflow switch
fails to operate correctly, replace the switch and retest.
NEVER attempt to adjust the air pressure switch setting.
This could allow unsafe operation of the burner, resulting
in potential of severe personal injury, death or substantial
property damage.
❏ Check gas pressure switches
❏
High gas pressure switch —
Cycle the burner off with the appliance controls and turn off power to the
appliance/burner.
Attach a manometer to the manifold-side manual gas valve test port.
Turn on power and cycle the burner on with the appliance controls.
Measure the manifold gas pressure with the manometer.
Set the high gas pressure switch to a pressure less than actual manifold
pressure. The high gas pressure switch should shut the burner down.
Replace the switch if necessary.
Turn off power to the appliance/burner; remove the manometer and
replace the plug in the gas valve test port.
❏
Low gas pressure switch —
Cycle the burner off with the appliance controls and turn off power to the
appliance/burner.
Close the main manual gas valve.
Cycle the burner on.
The low gas pressure switch should shut the burner down. Replace the
switch if necessary.
Turn off power to the appliance/burner.
Open the main manual gas valve.
❏ Check flange door switch
Cycle the burner off with the appliance controls and turn off power to
the appliance/burner.
Remove the nuts securing the hinged flange and swing the flange
open.
Attempt to cycle the burner with the appliance controls.
The flange door switch should prevent the burner from operating. Replace
the switch if necessary.
Close the flange door and replace the nuts.
Verify burner operation
❏ Start and stop the burner several times, allowing the primary control
to sequence through normal operation. Verify correct operation of
burner and controls throughout, including the burner door switch and
high and low gas pressure switches.
Verify vent system operation
❏ Verify vent is operating correctly and flue products are properly ex-
hausted from building.
❏ Check operation of barometric damper and spill switch.
❏ If the building contains any exhaust fans or conditions that could af-
fect vent performance, check burner/appliance/vent operation with
exhaust fans (or other conditions) operating.
Prepare the burner for normal operation
❏ Cycle burner off with appliance controls. Then turn off power to the
appliance.
❏ Close the main manual gas valve.
❏ Verify all components and wires are in place and burner is ready for
operation.
❏ When all tests and checks are completed, restore the burner and
appliance to normal condition for operation.
❏ Start the burner again to verify proper operation before leaving.
Train the user
❏ Train the user to operate the burner and appliance under normal
conditions. Explain procedure to shut down burner/appliance when
required.
❏ Review the user information manual (and the appliance instructions)
with the user.
❏ Verify the user is aware of all procedures specified in the manual.
❏ Verify user will not store or use combustible liquids or materials or
contaminants in the vicinity of the burner/appliance.