Thermo Products MG-1018 User Manual
ECM OPERATION MANUAL
FOR USE WITH MODELS:
CHX1-75N CDX1-75N
CHX1-100N CDX1-100N
CHX1-125N CDX1-125N
: IF YOU DO NOT FOLLOW THE SAFETY PRECAUTIONS BELOW AND IN THIS MANUAL, A
FIRE OR EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL INJURY, OR LOSS OF
LIFE.
DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF
THIS OR ANY OTHER APPLIANCE.
WHAT TO DO IF YOU SMELL GAS:
• DO NOT TRY TO LIGHT ANY APPLIANCE.
• DO NOT TOUCH ANY ELECTRICAL SWITCH; DO NOT USE ANY PHONE IN YOUR BUILDING.
• LEAVE THE BUILDING IMMEDIATELY.
• IMMEDIATELY CALL YOUR GAS SUPPLIER FROM A NEIGHBOR’S PHONE. FOLLOW THE GAS
SUPPLIER’S INSTRUCTIONS.
• IF YOU CANNOT REACH YOUR GAS SUPPLIER; CALL THE FIRE DEPARTMENT.
INSTALLATION AND SERVICE MUST BE PERFORMED BY A QUALIFIED INSTALLER, SERVICE AGENCY OR
THE GAS SUPPLIER. (REFERRED TO IN THESE INSTRUCTIONS AS A QUALIFIED HEATING
CONTRACTOR).
PLEASE READ THESE INSTRUCTIONS PRIOR TO INSTALLATION, INITIAL FIRING, AND BEFORE
PERFORMING ANY SERVICE OR MAINTENANCE. THESE INSTRUCTIONS MUST BE LEFT WITH THE
HOMEOWNER AND SHOULD BE RETAINED FOR FUTURE REFERENCE BY QUALIFIED SERVICE
PERSONNEL.
THERMO PRODUCTS, LLC.
BOX 217
NORTH JUDSON, IN 46366
PHONE: (574) 896-2133
MADE IN USA
MG-1018
ECN4547-MA
All installations and services must be performed by qualified service personnel.
INDEX
SECTION
I. FURNACE SPECIFICTIONS (SHIPPED SETT I NGS) 1
II. BLOWER INFORMATION 3
A. WIRING 3
B. CFM TABLES 4
III. ECM TROUBLESHOOTING 6
A. GENERAL GUIDELINES TO TROUBLESHOOTING GE ECM 6
B. TROUBLESHOOTING CHARTS 9
BEGINNING PAGE
i
All installations and services must be performed by qualified service personnel.
I. FURNACE SPECIFICATIONS (SHIPPED SETTINGS)
CHX1 SERIES
MODEL NO. CHX1-75 CHX1-100 CHX1-125
HEAT INPUT RATE IN BTU/HR
(High fire/ Low fire)
HEATING CAPACITY IN BTU/HR
(High fire/ Low fire)
HEIGHT OF CASING
WIDTH OF CASING
DEPTH OF CASING
WARM AIR OUTLET
RETURN AIR INLET
DIA. OF FLUE
DIA. OF COMBUSTION
AIR INTAKE
FLOWRATE from .2” & .5” w.c.
EXTERNAL STATIC PRESSURE
@COOLING TAP A (CFM)
@COOLING TAP B (CFM)
@COOLING TAP C (CFM)
@COOLING TAP D (CFM)
@HEATING TAP A
(CFM @High fire/Low fire)
TEMPERATURE RISE (°F)
BLOWER MO TOR HP
POWER CHOKES
LARGEST RECOMMENDED
AIR CONDITIONER
SIZE OF FILTERS
NOTES:
1. Heating capacity base d on annual fuel utilization efficie nc y rated by manufacturer.
2. On all outlet and inlet dimensions, the first dimension is width.
3. To permit largest recommended air conditioning (at .5 static pressure), selection of the highest motor speed is
required.
4. Electrical characteristics at 115 volts, 60 Hz., 1 phase (less than 15 amps, for all models).
5. All specifications are subject to change without notice.
75,000 / 52,000 100,000 / 70,000 125,000 / 87,500
70,875 / 49,612 94,500 / 66,150 117,500 / 82,250
44-1/4” 44-1/4” 44-1/4”
17” 21” 24”
27-1/2” 27-1/2” 27-1/2”
15 x 18 19 x 18 22 x 18
25 x 16 25 x 16 25 x 16
2” 3” 3”
2” 3” 3”
COOLING COOLING COOLING
1000 1200 1400
800 1000 1200
1200 1400 1600
1400 1600 2000
HEATING HEATING HEATING
931 / 760 1243 / 1015 1556 / 1270
70 / 60 70 / 60 70 / 60
.5 .75 1
- 2.65 Mh 2.1 Mh
3.5 Ton 4 Ton 5 Ton
24-3/4” x 15-3/4” 24-3/4” x 15-3/4” 24-3/4” x 19-3/4”
1
All installations and services must be performed by qualified service personnel.
CDX1 SERIES
MODEL NO. CDX1-75 CDX1-100 CDX1-125
HEATING INPUT RATE IN BTU/HR
(High fire / Low fire)
HEATING CAPACITY IN BTU/HR
(High fire / Low fire)
HEIGHT OF CASING
WIDTH OF CASING
DEPTH OF CASING
WARM AIR OUTLET
RETURN AIR INLET
DIA. OF FLUE
DIA. OF COMBUSTION
AIR INTAKE
FLOWRATE from .2” & .5” w.c.
EXTERNAL STATIC PRESSURE
@COOLING TAP A (CFM)
@COOLING TAP B (CFM)
@COOLING TAP C (CFM)
@COOLING TAP D (CFM)
@HEATING TAP C
(CFM @ High fire / Low fire)
TEMPERATURE RISE (°F)
BLOWER MO TOR HP
POWER CHOKES
LARGEST RECOMMENDED
AIR CONDITIONER
SIZE OF FILTERS
NOTES:
1. Heating capacity base d on annual fuel utilization efficie nc y rated by manufacturer.
2. On all outlet and inlet dimensions, the first dimension is width.
3. To permit largest recommended air conditioning (at .5 static pressure), selection of the highest motor speed is
required.
4. Electrical characteristics at 115 volts, 60 Hz., 1 phase (less than 15 amps. for all models).
5. All specifications are subject to change without notice.
75,000 / 56,250 100,000 / 75,000 125,000 / 93,750
69,750 / 52,312 93,000 / 69,750 116,250 / 87,187
46-1/4” 46-1/4” 46-1/4”
17” 21” 24”
27-1/2” 27-1/2” 27-1/2”
15 x 18 19 x 18 22 x 18
15 x 22 19 x 22 22 x 22
2” 3” 3”
2” 3” 3”
COOLING COOLING COOLING
1000 1200 1400
800 1000 1200
1200 1400 1600
1400 1600 2000
HEATING HEATING HEATING
1012 / 826 1340 / 1094 1673 / 1366
65 / 60 65 / 60 65 / 60
.5 .75 1
- 2.65Mh 2.1Mh
3.5 Ton 4 Ton 5 Ton
21-3/4” x 14”(2) 21-3/4” x 14”(2) 21-3/4” x 14”(2)
2
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