Form RZ-NA-I-FT, Page 14
21. Check Installation & Start-up
Check the installation prior to start-up:
Check suspension. Unit must be secure and level.
Check clearances from combustibles. Requirements are shown in
Paragraph 6.
Check vent system to be sure that it is installed according to the
instructions in Paragraph 11.
Check piping for leaks and proper gas line pressure. Bleed gas lines
of trapped air. See Paragraph 12.
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.
Heater Start-Up:
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 auto-
matically 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.
• Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's instruc-
tions.
• If you cannot reach your gas supplier, call your
fire department.
• Use only your hand to turn the gas control ON/
OFF knob or lever on the gas valve. Never use
tools. If the valve ON/OFF knob or lever 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 sup-
ply.
• Do not use this appliance if any part has been
under water. Immediately call a qualified ser-
vice technician to inspect the appliance and to
replace any part of the control system and any
gas control which has been under water.
Operating Instructions and Operating
Sequence
1. Set thermostat at lowest setting.
2. Turn off all electric power to the appliance.
3. This appliance is equipped with an ignition device which auto-
matically 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
lever on the gas valve. (See Figure 11.)
4. Turn the gas control knob or lever clockwise to "OFF".
5. Wait five (5) minutes to clear out any gas. Then smell for gas,
including near the floor.
If you smell gas, STOP!
and follow the
steps in the
WARNINGS
printed on the left or on the Operating
Label on the heater. If you do not smell gas, proceed to the next
step.
6. Turn the gas control knob or lever counterclockwise to "ON".
7. Close the access door.
8. Turn on the electric power to the heater.
9. Set the thermostat to the desired setting.
NOTE:
If the appliance does not operate, follow the instructions "To
Turn Off Gas to Appliance" printed below (and on the Operating La-
bel on the heater) and call your service technician.
10. Thermostat calls for heat, energizing the venter motor.
11. Venter pressure switch closes, firing the unit.
12. Burner flame is sensed and in 30 seconds, the fan motor is ener-
gized.
13. If the flame is extinguished during the main burner operation, the
integrated control system closes the main valve and must be reset
by interrupting power to the control circuit. (See lighting instruc-
tions on the heater.).
TO TURN OFF GAS TO THE APPLIANCE
1) Set thermostat to lowest setting
2) If service is to be performed, turn off all electric power to the
appliance.
3) Open the access door.
4) Turn the gas control knob or lever clockwise to "OFF". Do
not force.
5) Close the access door.
Gas Control Knob
(shown in the
ON position)
Gas Flow
Gas Control Lever
(shown in the
ON position)
Gas Inlet
Figure 11 - Gas Valve (Depending on the size and date
of manufacture, the heater
could have either of these
types of valves.)
