Model 601GAS burner — Instruction manual
MN601GAS 012516
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Where appliance instructions differ from this manual, follow the appliance instructions.
4. Check system • start-up burner/appliance
Inspect/check system
Before starting the burner and appliance, verify the system has been
installed as directed by this manual and the appliance instructions.
Check gas piping for leaks
Disconnect the burner from the gas supply line if gas line
test pressure will exceed 14 inches w.c. Exposing the burner
gas train to pressure higher than 14 inches w.c. can damage
the valve seat, resulting in potentially unsafe operation.
You can usually test the gas piping by allowing the line to fill with gas to
main regulator outlet pressure.
1. Shut off gas flow to all equipment connected to the meter.
2. If test pressure will be less than 14 inches w.c., close the gas train
manual gas valve. If test pressure will be higher than 14 inches,
remove the burner gas train from the gas line by shutting off the
main manual gas valve installed near the burner (per Figure 10,
page 13) and disconnecting the ground joint union. See WARNING
above.
3. Watch the gas meter dial. For a one half cubic foot per revolution dial,
there should be no movement of the dial for at least 5 minutes. For
larger volumes per revolution, increase this time proportionately.
4. If you detect a gas leak, locate the leak with a soap suds mixture and
repair it. Then test the system for leaks again.
Do not test for leaks with an open flame. And do not use
oxygen as a test gas. Either of these could cause an explo-
sion, resulting in severe personal injury, death or substantial
property damage.
Bleed gas line
Purge all air from the gas line. Purge to outside of the building, NEVER
into the appliance or burner.
Leak test near-burner gas piping
If piping near the burner has not already been pressure tested, open the
main manual gas valve on the supply to burner and smell around the area
for any signs of gas. Apply a soap suds mixture to all gas piping joints
near burner and check for any leaks. If any leaks appear, repair before
proceeding and retest.
Set burner air damper
See Figure 12. Loosen air damper locking nut. Then rotate the ajustment
screw until the damper is open to the setting given in Table 1a page 9.
Tighten the locking nut.
The Table 1a setting will probably be satisfactory without change. If the
combustion test indicates a need for more or less air, however, you will
have to adjust the damper accordingly.
Check burner and primary control
Inspect burner thoroughly. Verify that the hinged ignitor cover is closed
and screws are tight. Verify all wiring is in place and all components are
secure and in position.
Figure 12
Air damper adjustment
Do not start the burner if you smell gas or if there may be gas
present in the appliance combustion chamber, appliance or
the vent system. An explosion could occur, causing severe
personal injury, death or substantial property damage.
During initial start-up, you must be constantly alert for emer-
gency conditions such as fuel leaks, electrical malfunctions,
etc. Familiarize yourself with the location of manual shutoff
valves and switches so you can quickly use them if needed.
If the burner fails to ignite, NEVER attempt to manually
bypass the normal sequence of the control, which provides
purging of the combustion chamber.
Verify flame failure Lockout of 60200FR control
1. Install a hose barb fitting in the manual gas valve pressure tap and
connect with a hose to a U-tube manometer.
2. Close the main manual gas valve. Temporarily jumper the low gas
pressure switch.
3. Turn on power to appliance and set appliance limit(s) to call for heat.
4. Burner motor will start. The 60200FR will run for its prepurge timing,
then start the ignitor. Approximately one second later, the gas valves
will open. (The manometer should show almost no pressure, because
the main manual gas valve is closed.)
5. After the Trial for Ignition Period, the 60200FR will lockout and turn
on the red LED. The ignitor will shut off and the gas valves will close.
Turn off power and set controls to stop call for heat. Remove the
jumper from low gas pressure switch.
6. If Lockout does not occur, replace the 60200FR control.