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OMC-70, GMC-85 service manual Power Switch
Models:
GMC-85
OMC-70
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Troubleshooting
Specification
Install
Parts list
Wiring Diagram
replacement parts for location identification. After the furnace is warmed up to a steady- state condition about 15 minutes, the final burner adjustment should be made using combustion instrumentation for measuring carbon dioxide CO2 or oxygen O2, carbon monoxide CO, smoke for oil furnaces, and stack temperature. In order to achieve the most efficient combustion possible, the following steps must be taken
Figure J. ELECTRICAL WIRING
B.Cad Cell Checkout Procedure Omc Only
L.Burner Operation And Adjustment
C. Heat Exchanger Cleaning Instructions
Page 6
Image 6
All installations and services must be performed by qualified service personnel.
POWER SWITCH
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Contents
DOWN FLOW & DIRECT VENT SEALED COMBUSTION
FOR YOUR SAFETY
GAS-FIREDOR OIL-FIREDFURNACE
MODELS OMC-70AND GMC-85
I. SAFETY SECTION
If you do not follow these instructions exactly, a fire or explosion may result causing personal injury, loss of life or property damage
Do not attempt to start the burner when
All installations and services must be performed by qualified service personnel
POWER SWITCH
TABLE OF CONTENTS
SECTION
BEGINNING PAGE
a. Combustible material
b.Non-combustiblematerial
MODELS OMC/GMC
OMC-70
III. FURNACE SPECIFICATIONS
MODEL
GMC-85
OMC-70
BURNER DATA
BLOWER DATA
GMC-85
IV. INSTALLATION A. ROOF JACK
B. STANDARD CHIMNEY
C.FURNACE LOCATION
Combustible Floor Base Model 70-BASE
Cottage Base Model 01COT-BASE
Figure 1A
D. BASE INSTALLATION
2. Cottage Base Model OMCCOT-BASE
IMPORTANT Adequate combustion air must be provided under all circumstances. If the underside of the home is skirted or enclosed e.g. by an enclosed crawlspace, the combustion air intake should exit through the side of cottage base and terminate outside of the structure. All joints and seams of supply ducts and combustion air ducts must be closed with a sealing method suitable to the application conditions and temperatures e.g. using high temperature silicone caulk and/or aluminum tape
E. ALCOVE INSTALLATION
F. CLOSET INSTALLATION
G. COMBUSTION AIR
The preferred location of the outside combustion air intake termination e.g. an optional stainless steel intake hood, part no.370183 is through the side of the structure, skirting or enclosure. An alternate termination location is under the structure in the skirted or crawlspace area providing a minimum of 50 square inches of free area exists around the perimeter for outside combustion air to be drawn through
Page
H. FUEL PIPING
2. Oil Tank and Piping OMC-70
All installations and services must be performed by qualified service personnel
Figure J. ELECTRICAL WIRING
1.Electrical Branch Supply Circuit
Once the furnace is installed, check the thermostat anticipator the proper nominal setting
4.WIRING DIAGRAM
K. BURNER INSTALLATION
L.BURNER OPERATION AND ADJUSTMENT
replacement parts for location identification. After the furnace is warmed up to a steady- state condition about 15 minutes, the final burner adjustment should be made using combustion instrumentation for measuring carbon dioxide CO2 or oxygen O2, carbon monoxide CO, smoke for oil furnaces, and stack temperature. In order to achieve the most efficient combustion possible, the following steps must be taken
M. FLUE GAS COMBUSTION ANALYSIS
BURNER COMBUSTION PARAMETERS
V. DEALER MAINTENANCE
A.TROUBLESHOOTING
OMC/GMC TROUBLESHOOTING FLOWCHART
Are the thermostat wires
module GMC or ignition transformer OMC
After fuel valve opens, does the burner ignite?
Has the high limit thermostat
B.CAD CELL CHECKOUT PROCEDURE OMC ONLY
C. HEAT EXCHANGER CLEANING INSTRUCTIONS
D. CLEANING OR REPLACING FLUE PIPES
E. EXTENDED SHUTDOWN
VI. USER INFORMATION SECTION
A. WARNINGS AND CAUTIONS
B. COMPONENT LOCATIONS
Figure C. INSPECTION AREAS
D.FILTER LOCATION AND CLEANING
APPENDIX A. REPLACEMENT PARTS LIST
