Reznor UEAS Unit Installation Manual - Manual (Page 33)

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.
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 fire
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
floor because some gas is heavier than air and will settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Leave the building immediately.
• Immediately call your gas supplier from a phone remote from the building. Follow the gas supplier’s
instructions.
• If you cannot reach your gas supplier, call your fire department.
• Use only your hand to turn the gas control ON/OFF knob on the gas valve. Never use
tools. If the valve ON/OFF knob will not turn by hand, do not try to repair it. Call a qualified
service technician. Force or attempted repair may result in a fire or explosion.
• Should overheating occur, or the gas supply fail to shut off, turn off the manual gas valve
to the appliance before shutting off the electrical supply.
• Do not use this appliance if any part has been under water. Immediately call a qualified
service technician to inspect the appliance and to replace any part of the control system
and any gas control which has been under water.
Form I-UEAS, P/N 221232 R13, Page 33