Installation manual

Soft Lockout - The control shall not initiate a call for heat or call for continuous
fan while in lockout. The control will still respond to an open limit and undesired
ame. Lockout shall automatically reset after one hour. Lockout may be manually
reset by removing power from the control for more than one second or removing
the thermostat call for heat for more than one and less than 20 seconds.
Hard Lockout - If the control detects a fault on the control board, the status LED
will be de-energized, and the control will lockout as long as the fault remains. A
hard lockout will automatically reset if the hardware fault clears.
Power Interruption - During a momentary power interruption or at voltage levels
below the minimum operating voltage (line voltage or low voltage) the system will
self-recover without lockout when voltage returns to the operating range.
Power interruptions of less than 80mS shall not cause the control to change oper-
ating states. Power interruptions greater than 80mS may cause the control to inter-
rupt the current operating cycle and re-start.
Abnormal Heat Cycle
Functions (cont’d)
10.0 Ignition System
(cont’d)
Lockout
11.0 Commissioning
and Startup
11.1 Check the Installation Prior to Startup
□ Check to be sure that all screws used to hold shipping
brackets were re-installed in the heater cabinet.
□ If installed in California, verify that the California Warning
Label is displayed.
□ Check suspension. Unit must be secure and level.
□ Check clearances. Requirements are in Paragraph 4.1.
□ Check piping for leaks and proper gas line pressure. Bleed
gas lines of trapped air. See Paragraph 7.1.
□ Check vent system to be sure that it is installed according to
the instructions in Paragraph 7.2.
□ Check condensate drain system to be sure that it is installed
according to the instructions in Paragraph 7.3
□ Check electrical wiring. Be sure all wire gauges are as
recommended. A service disconnect switch should be used.
Verify that fusing or circuit breakers are adequate for the
load use.
□ Check polarity. Verify that line voltage exists between the
black “L1” and earth ground.
11.2 Heater Startup
WARNINGS
For your safety, read before operating. If you do not follow these
instructions exactly, a re or explosion may result causing
property damage, personal injury, or loss of life.
• This appliance does not have a pilot. It is equipped with an
ignition device which automatically lights the burner. Do not try
to light the burner by hand.
• Before operating, smell all around the appliance area for gas.
Be sure to smell next to the oor because some gas is heavier
than air and will settle on the oor.
Form I-UEAS, Page 34