ISi North America AMV8 User Manual download pdf (Page 24)

XII. START-UP PROCEDURE AND ADJUSTMENT

Furnace must have a 115 VAC power supply properly connected

and grounded. Proper polarity must be maintained for correct

operation. An interlock switch prevents furnace operation if the

blower door is not in place. Keep the blower access door in place

except for inspection and maintenance.

This furnace is also equipped with a self-diagnosing electronic

control module. In the event a furnace component is not operating

properly, the control module LED will flash on and off in a factory-

programmed sequence, depending on the problem encountered.

This light can be viewed through the observation window in the

blower access door. Refer to the Troubleshooting Chart for further

explanation of the lighting codes.

Follow the start-up and adjustment items, refer to further

information in Section XIII, Operational Checks.

FURNACE OPERATION

Purge gas lines of air prior to start-up. Do not purge lines into an

enclosed burner compartment.

Check for leaks using an approved chloride-free soap and water

solution, an electronic combustible gas detector, or other approved

method. Verify that all required kits (propane gas, high altitude,

etc.) have been appropriately installed.

NOTE: An interlock switch prevents furnace operation if the blower

door is not in place. Keep the blower access doors in place

except for inspection and maintenance.

FURNACE S TART-UP

1. Close the manual gas shutoff valve external to the furnace.

2. Turn off the electrical power to the furnace.

3. Set the room thermostat to the lowest possible setting.

4. Remove the burner compartment door.

NOTE: This furnace is equipped with an ignition device which

automatically lights the burner. Do not try to light the burner by

hand.

5. Move the furnace gas valve manual control to the OFF

position.

6. Wait five minutes then smell for gas. Be sure check near

the floor as some types of gas are heavier than air.

7. If you smell gas after five minutes, immediately follow the

instructions on page 3 of this manual. If you do not smell

gas after five minutes, move the furnace gas valve manual

control to the ON position.

8. Replace the burner compartment door.

9. Open the manual gas shutoff valve external to the furnace.

10. Turn on the electrical power to the furnace.

11. Adjust the thermostat to a setting above room temperature.

12. After the burners are lit, set the thermostat to desired

temperature.

NOTE: There is an approximate 40 second delay between

thermostat energizing and burner firing.

FURNACE S HUTDOWN

1. Set the thermostat to lowest setting.

2. Turn off the electrical power supply to the furnace.

3. Remove the burner compartment door and move the

furnace gas valve manual control to the OFF position.

4. Close manual gas shutoff valve external to the furnace.

5. Replace the burner compartment door.

GAS SUPPLY PRESSURE MEASUREMENT

CAUTION

O PREVENT UNRELIABLE OPERATION OR EQUIPMENT DAMAGE, THE INLET

GAS SUPPLY PRESSURE MUST BE AS SPECIFIED ON THE UNIT RATING PLATE

WITH ALL OTHER HOUSEHOLD GAS FIRED APPLIANCES OPERATING.

WHITE-RODGERS 36G54 GAS VALVE

The line pressure supplied to the gas valve must be within the

range specified below. The supply pressure can be measured at

the gas valve inlet pressure boss or at a hose fitting installed in

the gas piping drip leg. The supply pressure must be measured

with the burners operating. To measure the gas supply pressure,

use the following procedure.

On/Off Switch

Inlet

Pressure Boss

High Fire

Coil Terminal (HI)

Low Fire

Regulator Adjust

High Fire Regulator

Adjust

Regulator

Vent

Common

Terminal (C)

Coaxial Coil

Terminal (M)

Outlet

Pressure Boss

Open to

Atmosphere

White-Rodgers Model 36G54 Connected to Manometer

1. Turn OFF gas to furnace at the manual gas shutoff valve

external to the furnace.

2. Connect a calibrated water manometer (or appropriate gas

pressure gauge) at either the gas valve inlet pressure boss

or the gas piping drip leg.

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ISi North America AMV8 User Manual Page 24

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