Reznor UDBS Unit Installation Manual - Manual (Page 32)

Form I-UDB, P/N 202658 R14, Page 32
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 1.2.2.
 Check piping for leaks and proper gas line pressure. Bleed gas lines of
trapped air. See Paragraph 6.1.
 IMPORTANT - Before applying power to a unit with a belt drive, check
blower and motor pulleys to be sure they are secure to the shaft. Check
blower and pulleys for free movement.
Check belt tension and alignment. See Paragraph 6.4.
 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.
9.1 Check the installation prior to startup:
9.2 Heater Startup:
1. Set the thermostat at lowest setting.
2. Turn off all electric power to the appliance.
3. This appliance is equipped with an ignition device which automatically lights the
burner. Do not try to light the burner by hand. Open the access door and locate the
gas control (ON/OFF) knob or switch on the gas valve. (See FIGURE 17.)
Sequence of Operation
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.