Goodman Mfg AMV8 instruction manual XII. START-UP Procedure and Adjustment

•Integrated control module performs safety circuit checks.

•Outdoor fan and compressor are energized to their appropriate speed.

•Circulator blower is energized on the appropriate cool speed following a fixed five second on delay. The circulator blower requires 30 seconds to ramp up to full speed. Electronic air cleaner terminals are energized with circulator blower.

•Furnace circulator blower and outdoor cooling unit run their appropriate speed, integrated control module monitors safety circuits continuously.

•R and YLO/G or Y/G thermostat contacts open, completing the call for cool.

•Outdoor fan and compressor are de-energized.

•Circulator blower continues running for a cool off delay period. The OFF delay time and airflow level are determined by the selected ramping profile.

•Electronic air cleaner terminals and circulator blower are de-energized.

•Furnace awaits next call from thermostat.

CONSTANT FAN

•R and G thermostat contacts close, initiating a call for fan.

•Integrated control module performs safety circuit checks.

•Circulator blower is energized on continuous fan speed (56% of high stage cooling) following a five (5) second delay. Electronic air cleaner terminals are energized.

•Circulator blower runs, integrated control module monitors safety circuits continuously.

•R and G thermostat contacts open, completing the call for fan.

•Circulator blower is de-energized. Electronic air cleaner terminals are de-energized.

•Furnace awaits next call from thermostat.

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 START-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 5 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 30 second delay between thermostat energizing and burner firing.

FURNACE SHUTDOWN

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.

Outlet (Manifold)	Low Manifold	Gas Valve
		Manual Control
	Regulator Adjustment
Pressure Tap	Screw (Under Cap)	Inlet Pressure Tap
(Side of Valve)
		(Side of Valve)

Open to

Atmosphere

Manometer

Hose

High Manifold

Regulator Adjustment

Screw (Under Cap)

Manometer

White-Rodgers Model 36E54 Connected to Manometer

GAS SUPPLY PRESSURE MEASUREMENT

CAUTION

iperat.TO 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.

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 tap or at a hose fitting installed in the

IO-247A 22 12/04