Check/Test/Start-Up
22. Check Installation & Start-Up
Check the installation prior to start-up:
%Check clearances from combustibles. Requirements are shown in Paragraph 4.
%If installed as a
%Check piping for leaks and proper gas line pressure. Bleed gas lines of trapped air. See Paragraph 9.
%Check the blower compartment to be sure that all shipping sup- ports have been removed. Close the blower compartment door se- curely. Heater will not operate if the blower compartment door is not closed.
%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.
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 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 re- sult in a fire or explosion.
•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 automatically lights the burner. Do not try to light the burner by hand. Open the access door and locate the gas valve.
4.Models CAUA 150 and 200 - Locate the gas control (ON/OFF) knob on the gas valve. Turn the gas control knob clockwise to "OFF".
Models CAUA 250, 300, 350, and 400 - Locate the gas con- trol (ON/OFF) knob on the gas valve. Turn knob clockwise to align the line on the knob with the position indicator. Depress knob and continue rotation to the "OFF" position.
Top View of Gas Valve used on | Control Knob on Top of | |||
CAUA 150 and 200 | ||||
Gas Valve used on CAUA | ||||
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| 250 - 400 | |
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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 in the right column or on the Operating Label on the heater. If you do not smell gas, proceed to the next step.
6.Models CAUA 150 and 200 - Turn the gas control knob coun- terclockwise to "ON".
Models CAUA 250, 300, 350, and 400 - Turn knob counter- clockwise to align the line on the knob with the position indi- cator. Allow knob to "pop up", and continue rotation to the "ON" position.
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 the Appliance" printed below (and on the Operating Label on the heater). Call your service technician.
10. Thermostat calls for heat, energizing the venter motor.
11.Venter pressure switch closes, allowing the unit to fire.
12.Burner flame is sensed and in 30 seconds, the blower motor is energized.
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 instructions on the heater.).
Form 405, Page 22