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All installations and services must be performed by qualified service personnel.

 

 

14

 MAINTENANCE: 

 

A qualified heating contractor should perform the 
following maintenance procedures at the beginning 
of each heating season.  Correct any deficiencies at 
once. 
 

c

 WARNING:

  

Personal injury or property damage 

could result from repair or service of this furnace by 
anyone other than a qualified heating contractor.  
Only the homeowner/user routine maintenance 
described in the Users Information Manual may be 
performed by the user. 
 

c

 WARNING:  

To avoid injury from moving parts, 

shut off the power to the furnace before removing 
blower compartment door. 

 

ELECTRICAL: 

Check all wiring for loose connections and any signs of 
damage or unusual wear. 
Check for correct voltage at the furnace when operating. 
Check amp-draw on blower motor and inducer motor to 
assure they are not exceeding nameplate amp rating. 
Check for correct operation and proper settings (if 
manually adjustable) of all controls. 

 
BURNER

 

If it appears that material is accumulating in or around 
the burner, the burner can be removed for inspection 
and cleaning, see Figure 8. The burner assembly is 
removed by removing the seven screws around the 
burner mounting plate and pulling the complete 
assembly from the burner chamber. When reinstalling 
make sure all gaskets are in good condition and properly 
position. 

 

 

 

 
 
 
 
 
 
 
 
 
 

 Figure 8 

 

COMBUSTION FAN ASSEMBLY 

Inspect the pressure switch and tubing connections and 
inspect the fan assembly for warpage, deterioration and 
debris or other build-up. Remove any debris from the fan 
and motor assembly. 

 

INSPECTING THE VENTING SYSTEM 

The venting system should be inspected during the 
annual maintenance check-up or during each 
subsequent service call. 
 
Check the vent system for restrictions due to soot, or 
carbon build-up, as well as foreign matter, or any 
materials, that cause the venting system to restrict the 
proper venting of combustion products.  If a restriction is 
found, the roof jack 

must

 be cleaned or replaced to 

ensure proper venting. 

 

Vent pipes should also be inspected for any signs of 
corrosion, deterioration, or leakage that may cause 
combustion by-products to infiltrate the home or indoor 
environment. 
 
If signs of corrosion, deterioration, or leakage are 
evident, the Roof Jack 

must

 be replaced with a properly 

sized, agency-approved, Roof Jack. 

 
GASKETS/SEALING MATERIALS 

Inspect all visible gaskets for signs of degradation, 
especially any seals which were removed as part of the 
inspection.  Replace any suspect gaskets. 

 

HEAT EXCHANGER 

Inspect for corrosion, pitting, warpage, deterioration, 
carbon build-up, and loose gaskets in the flue pipe, and 
accessible areas of the heat exchanger. 

 

HOUSE AIR BLOWER 

Check and clean the blower wheel, housing, and 
compartment with a vacuum.   

 

IMPORTANT:

  The blower motor is permanently 

lubricated 

and should not be oiled.

  . 

 

 
 

 USER INFORMATION SECTION: 

 

WARNINGS AND CAUTIONS:

 

c

 WARNING: 

If you suspect there is a problem with 

the furnace, pertaining to the venting system or any 
other related problem, immediately contact a 
qualified service agency.  If a service agency is not 
available, contact your fuel supplier.

 

  

  

c

 WARNING: 

Personal injury or property damage 

could result from major repair or service of this 
furnace by anyone other than a qualified contractor.  
The user should only perform the routine 
maintenance described in the user section of this 
manual.

 

   

c

 WARNING: 

The area around the furnace should be 

kept free and clear of combustible materials, 
especially papers and rags. 

 

c

 CAUTION: 

Do not block or obstruct air openings 

on the furnace casing.  Do not block or obstruct air 
openings communicating within the area in which 
the furnace is installed. 

   

c

 CAUTION: 

Do not allow the outside air intake to 

be blocked or obstructed by vegetation, ice, snow, 
or any other materials. 

     

c

 WARNING: 

Do not use this furnace if any part has 

been underwater.  Immediately call a qualified 
service agency to inspect the furnace and to replace 
any part of the electrical or control system, which 
has been underwater. 

     

c

 WARNING: 

Should overheating occur or the fuel 

supply fail to shut off, shut off the manual fuel 
supply valve to the furnace before shutting off the 
electrical supply. 

Summary of Contents for GMA1-60D48N

Page 1: ...Homes Buildings PLEASE READ THESE INSTRUCTIONS PRIOR TO INSTALLATION INITIAL FIRING AND BEFORE PERFORMING ANY SERVICE OR MAINTENANCE THESE INSTRUCTIONS MUST BE LEFT WITH THE USER AND SHOULD BE RETAINE...

Page 2: ......

Page 3: ...OPERATION OF THE FURNACE 6 Initial Start Up 6 Adjustment of Heat Input 7 Burner Adjustment 8 Setting Temperature Rise 8 Furnace Check Out Procedure 8 Instructions to Our Customer End User 8 SERVICE 9...

Page 4: ...n recovering your claim against the transportation company Warranties c WARNING The manufacturer of this equipment assumes no liability for any damages resulting from unauthorized modifications made t...

Page 5: ...e Improper installation may create a fire hazard and damage internal equipment as well as void all manufacturers warranties For best performance locate the furnace so that it is centralized with respe...

Page 6: ...terials located in the return air system must have a flame spread classification of 200 or less Wiring materials located in the return air duct system must conform to Article 300 22 of the latest edit...

Page 7: ...With the gas piping pressurized all gas piping connections must be leak tested using a strong soap and water solution Any leaks must be repaired immediately after turning off the gas supply A final te...

Page 8: ...ly L1 Hot line to the Black wire labeled LI Connect the power supply L2 Neutral to the white wire labeled L2 Connect the Power Supply Ground wire to the Green Wire Secure all connections with the yell...

Page 9: ...9 2 001 3 000 30 26 2 10mm 42 3 001 4 000 30 27 45 2 30mm 4 001 5 000 1 8 28 2 00mm 43 5 001 6 000 31 29 1 95mm 2 20mm 6 001 7 000 31 29 48 2 15mm 7 001 8 000 32 30 49 45 8 001 9 000 33 1 8 50 2 00mm...

Page 10: ...connected to the Heat terminal on the integrated furnace control with one of the higher speed blower leads attached to a terminal marked Park Be sure to attach any unused blower leads to a terminal ma...

Page 11: ...ire control should be replaced as the control is not field repairable If the sensed failure is in the system external to the control the LED will flash in the following flash pause sequences to indica...

Page 12: ...s Yes No No Yes ARE WIRES CONNECTED PROPERLY No CORRECT WIRE CONNECTIONS No Yes Yes No Yes IS THE INDUCER BLOWER OPERATING Yes TROUBLESHOOTING GUIDE THE SYSTEM IS STARTED BY SETTING THE THERMOSTAT TO...

Page 13: ...ER TERMINALS IND IND N AT THE INTEGRATED CONTROL CHECK THE INTEGRATED CONTROL DIAGNOSTIC LED LAMP RESET BY INTERRUPTING POWER TO CONTROL FOR MORE THAN ONE SECOND IF LED STAYS ON CONTINUOUSLY REPLACE I...

Page 14: ...ROOF OF FLAME CHECK Yes CHECK ACROSS THE CIRCULATING AIR BLOWER TERMINALS CIR N HEAT FOR PROPER VOLTAGE REPLACE THE INTEGRATED CONTROL No No Yes DOES THE CIRCULATING AIR FAN COME ON WHEN ENERGIZED No...

Page 15: ...NS CHECK FOR SHORT IN WIRE TO THERMOSTAT AND CORRECT IF NECESSARY DOES BURNER SHUT OFF WHEN THERMOSTAT IS SATISFIED No No No Yes Yes Yes Yes Yes IS LED LIGHT ON INTEGRATED CONTROL FLASHING DOES THE CI...

Page 16: ...replaced to ensure proper venting Vent pipes should also be inspected for any signs of corrosion deterioration or leakage that may cause combustion by products to infiltrate the home or indoor enviro...

Page 17: ...g for signs of excessive heat such as discoloration of components materials damaged from rust or corrosion soot or carbon build up EXTERIOR OF FURNACES The furnace exterior should be inspected for sig...

Page 18: ...All installations and services must be performed by qualified service personnel 16 APPENDIX A REPLACEMENT PARTS GMA1 SERIES...

Page 19: ...All installations and services must be performed by qualified service personnel 17 GMA1 SERIES...

Page 20: ...All installations and services must be performed by qualified service personnel 18 GMC1 SERIES...

Page 21: ...All installations and services must be performed by qualified service personnel 19 GMC1 SERIES...

Page 22: ...All installations and services must be performed by qualified service personnel 20 GMA1 GMC1 SERIES BURNER ASEMBLY...

Page 23: ...All installations and services must be performed by qualified service personnel 21 APPENDIX B WIRING DIAGRAM REVISE...

Page 24: ...ce Motor Current Draw Amps vs External Static pressure in WC 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 3 01 2 95 2 90 2 82 2 70 2 62 2 53 ML 4 06 3 84 3 75 3 62 3 48 3 34 3 13 MH 5 43 5 29 5 16 5 01 4 74 4 58 4...

Page 25: ...ace Motor Current Draw Amps vs External Static pressure in WC 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 3 01 2 95 2 90 2 82 2 70 2 62 2 53 ML 4 06 3 84 3 75 3 62 3 48 3 34 3 13 MH 5 43 5 29 5 16 5 01 4 74 4 58...

Page 26: ...Current Draw Amps vs External Static pressure in WC 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 3 04 2 93 2 88 2 79 2 72 2 64 2 53 ML 3 85 3 78 3 66 3 55 3 45 3 31 3 15 MH 5 40 5 23 5 06 4 88 4 70 4 52 4 30 High...

Page 27: ...ace Motor Current Draw Amps vs External Static pressure in WC 0 1 0 2 0 3 0 4 0 5 0 6 0 7 Low 3 04 2 93 2 88 2 79 2 72 2 64 2 53 ML 3 85 3 78 3 66 3 55 3 45 3 31 3 15 MH 5 40 5 23 5 06 4 88 4 70 4 52...

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