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Section 7: Start Up
CAUTION
Make sure that all air is purged from the gas lines.
There are 7 relays in this panel that have a red LED in the bottom
left corner of the transparent cube enclosure. When the red LED is
illuminated, the relay is ON.
R1 (Ignition System)
The ignition system is POWERED
R2 (End Switch)
The end switch is CLOSED (damper open)
R3 (Wall Switch)
The wall switch is turned ON
R4 (Heat Sensor)
The heat sensor switch is CLOSED
R5 (Flue Gas)
The flue gas proving switch is CLOSED (adequate draft in flue)
R6 (Inverter to Power Vent)
The inverter has received a signal to power up the power vent motor
R7 (Damper Open)
The damper is being held open during post-purge cycle
CAUTION
R6 and R7 are 110V relays and are not interchangeable
with 24V relays.
XG0799 - 081319
1. Ensure that all connections are made as per instructions.
2. Turn on the panel's circuit breakers.
3. The red lights in the breakers and the inverter display will
illuminate.
4. Turn the wall switch ON.
5. The wall switch relay and heat sensor relay will light up, and the
damper (optional) will start to open.
6. When the damper is open, the end switch relay will light and signal
the inverter to start. If dampers are not installed, the end switch
relay will light when the wall switch is turned on.
7. The inverter will ramp from 0 to its set speed, and the green RUN
LED will illuminate.
8. Check the rotation of the power vent; there is an arrow on the power
vent's housing that indicates the proper rotational direction.
9. If the power vent is spinning the wrong way, throw the reverse
direction switch.
Reversing the Power Vent Motor
• Flip the reverse direction switch, regardless of current position.
• The inverter will display the decreasing speed of the motor until
it reaches 0.
• The inverter will pause for 15 seconds.
• The inverter will ramp from 0 to the last used speed, but in the
reverse direction (indicated by a negative sign).
10. The flue gas relay is activated within 10 to 15 seconds of the power
vent running at an adequate speed. If the flue gas relay is not
activated after 30 seconds, increase the speed of the power vent.
11. The ignition system relay will power up after the pre-purge time
(60 seconds).
12. The ignition system relay will supply power to the ignition module,
which will simultaneously open the valve and start the spark igniter.
Once the burner lights, the spark igniter will stop. If the burner
doesn't light within 20 seconds, the ignition module will lockout. If
the air movement of the system is too erratic and the flames aren't
in contact with the igniter, the module will also lockout. To reset
the module, cycle the wall switch.
Installation
23
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Table of Contents
Troubleshooting
