HP 422690 Installer'S Information Manual Download

Page: 27 / 27

Installer’s Information Manual

Page 27

There must be no obvious signs of deterioration of the
furnace. Inspection must include burners, pilot, heat
exchanger, inducer pan, and draft inducer.

Flame holders, located inside the main burners, should
be free of lint or dirt. Burners can be cleaned with
compressed air.

Inspect all electrical wiring and connections, including
electrical ground.

Gas pipes must be checked for leaks using a
commercial soap solution made to detect leaks.

Main burners and pilot burner must be in good
adjustment as shown in the User’s Information Manual.
Main burner flame must be clear blue and centered
within heat exchanger openings.

Check furnace area for combustible materials,
flammable liquid near fu rnace, corrosive materials,
insulation material within 12 inches of fu rnace, and
signs of high water levels.

Inspect, clean, or repair as needed the following items:
blower housing, blower motor, blower wheel, air filters,
draft inducer, and cooling coil.

NOTE: Blower motor and inducer motor do not require
oiling.

Follow these steps to remove blower assembly:

1. Turn off furnace electrical power.

2. Disconnect room thermostat wires from 24-volt terminal

strip on Fan Timer.

3. Locate five blower motor wires that feed though casing

hem.

4. Label blower motor wires for proper replacement.

5. Disconnect blower motor wires from Fan Timer. See

Figure 22.

6. Remove 2 screws holding blower door in place.

Remove blower door.

7. Pull blower motor wires th rough casing hem.

8. Remove power-disconnect assembly located in the

middle of blower deck.

9. Remove 2 screws holding blower assembly to blower

deck.

10. Slide blower assembly out.

11. After cleaning blower assembly, re-assemble in

reverse order making sure speed selections are in
original positions.

SECTION 24. ACCESSORIES

THERMOSTATS: These are quality thermostats with the
Consolidated Industries name. Choose from the T87
(round w/subbase), T834 (heating and cooling) or the
T8699 (Chronotherm III)--available in white only.

PROPANE CONVERSION KIT (BELOW 6,000 ft): Includes
propane regulator-spring kit, propane pilot orifice and main
burner orifices.

HIGH-ALTITUDE PROPANE CONVERSION KIT (ABOVE
6,000 ft): Includes propane regulator-spring kit, propane
pilot orifice, main burner orifices, and high-altitude pressure
switch.

NATURAL GAS CONVERSION KIT (BELOW 6,000 ft):
Includes natural gas regulator-spring kit, natural gas pilot
orifice and main burner orifices.

HIGH-ALTITUDE NATURAL GAS CONVERSION KIT
(ABOVE 6,000 ft): Includes natural gas regulator-spring kit,
natural gas pilot orifice, main burner orifices and high-
altitude pressure switch.

BOTTOM FILTER CABINET: Three sizes - one size for
each furnace casing size.

SIDE FILTER CABINET: Attaches to either side of furnace.
One size fits all.

BOTTOM CLOSURE: Seals bottom of furnace when only
side retu rn is used.

FILTERS: High-velocity washable filters, available in
cartons of 10. Sizes include 16 x 25 x 1 and 20 x 25 x 1.

SECTION 25. OTHER
INFORMATION AND
PUBLICATIONS

These publications can help you install the fu rnace. You
can usually find these at your local library or buy them
directly from the publisher. Be sure to consult current
edition of each standard.

National Fuel Gas Code

ANSI Z223.1/NFPA 54

Canadian Installation Codes

CAN/CGA B149

National Electrical Code

ANSI/NFPA Code 70

Canadian Electrical Code

CSA C22.1

Standard For The Installation
Of Warm Air Heating And Air
Conditioning Systems.

ASHRAE/NFPA 90

For more information, contact these publishers:

ANSI: