Reznor UDAS Unit Installation Manual - Manual (Page 26)

Page 26
9.0 Commissioning
and Startup  Check to be sure that all screws used to hold shipping brackets were re-
installed in the heater cabinet.
 Check suspension. Unit must be secure and level.
 Check clearances from combustibles. Requirements are in Paragraph 4.1.
 Check vent system to be sure that it is installed according to the
instructions in the appropriate Vent Installation Manual as listed in
Paragraph 2.2.
 Check piping for leaks and proper gas line pressure. Bleed gas lines of
trapped air. See Paragraph 6.1.
 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.
 If installed in California, verify that California Warning Label is displayed.
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 control system fail
to shut off the flow of gas, 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.
9.1 Check the installation prior to startup:
9.2 Heater Startup: