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Furnace
Thermo Products
CBD1-125N, CHB1-125N, CHB1-75N, CHB1-100N, CBD1-75N, CBD1-100N, CBD1-50N, CHB1-50N
Models:
CHB1-50N
CBD1-50N
CBD1-125N
CBD1-100N
CBD1-75N
CHB1-100N
CHB1-75N
CHB1-125N
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Troubleshooting
Specifications
The CHB1/CDB1 furnace models are sealed combustion design, which does not require an air shutter adjustment air shutters are not used for proper flame characteristics. Burner box access cover must always be secured with all screws in place and tightened before operating furnace
Install
Parts list
Appendix – B Wiring Diagrams
Connecting The Exhaust Vent To The Inducer
I.Condensate Drain Line And Trap Assembly
E. Furnace Checkout Procedure
Blower Delay Settings
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All installations and services must be performed by qualified service personnel.
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Contents
CHB1-100N CDB1-100N CHB1-125N CDB1-125N
MODELS CHB1-50N CDB1-50N CHB1-75N CDB1-75N
INSTALLATION AND OPERATION MANUAL
CONDENSING GAS FURNACE
I. SAFETY INFORMATION
2. Set the thermostat to the lowest setting
1.A windows be opened
2.The thermostat set at highest setting
The CHB1/CDB1 furnace models are sealed combustion design, which does not require an air shutter adjustment air shutters are not used for proper flame characteristics. Burner box access cover must always be secured with all screws in place and tightened before operating furnace
BEGINNING PAGE
INDEX
SECTION
II.FURNACE SPECIFICATIONS CHB1 SERIES
CDB1 SERIES
INSTALLATION PARTS PACKAGES - CHB1-50/75
INSTALLATION PARTS PACKAGES - CDB1-50/75
A. CODES AND CLEARANCES
III. GENERAL INSTALLATION
3.MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS
B1. CDB1 HORIZONTAL APPLICATION
Figure
PVC Pipe Designation
Not Permitted
Quantity of Elbows
Outside Combustion Air Intake RH view
E. Direct Venting Through a Sidewall
c.The vent terminal shall not be located
4. Vent Terminal Location Guidelines
E1. Single-PipeSidewall Venting Option
5.Optional Direct Vent Terminations
If it is not desirable, or feasible, to vent the furnace through a sidewall, it may be vertically vented through the roof. Installation shall conform to the following guidelines, which are illustrated in Figure 6A, below
1.Figures 6B, 7, and 8 follow depicting typical exhaust vent and air intake connections for the furnace model series CHB1 and the CDB1, respectively, as well as a list of required parts to correctly install each system
Page
2.Connecting The Exhaust Vent To The Inducer
b.After preparation of the internal 2-inchdiameter PVC pipe sections, put a thin bead of a silicone rubber type sealant around the outlet flange of the inducer. Slip the 2-inchdiameter PVC elbow for the model series CDB1 in horizontal applications, a 2-inchdiameter PVC tee over the inducer outlet flange
3.Connecting The Combustion Air Intake Piping
I.Condensate Drain Line And Trap Assembly
Application
NOTICE: On the model series CHB1 / CDB1 the condensate disposal line must be on the same side as the flue outlet or, in the case of a horizontal application, the bottom of unit
J.GENERAL GAS PIPING
J1. REQUIREMENTS AND SIZING OF DUCT WORK
Figure
Figure 18A
TABLE 2A
2. CDB1 MODELS: COUNTERFLOWS
K. FILTERS 1. CHB1 MODELS: HIGHBOYS
Figure
Figure
3. THERMOSTAT ANTICIPATOR SETTING
L. WIRING
4.BLOWER MOTOR SPEED WIRING Figure
BLOWER DELAY SETTINGS
CDB1 SERIES ONLY
MAIN BURNER OPERATION CALL FOR HEAT SATISFIED
C. ADJUSTMENT OF BTU INPUT RATE
2.The thermostat be set at highest setting
B. INITIAL START UP
OPERATING INSTRUCTIONS
MAX 14 WC
SUPPLY PRESURE
3.5 +.3 WC
MIN 4.5 WC
Figure
E. FURNACE CHECKOUT PROCEDURE
Figure
V. INSTALLERS INSTRUCTIONS TO USER
VI. TROUBLESHOOTING
Power must be disconnected before servicing
DIAGNOSTIC FEATURES
The LED will also flash once at power-up
TROUBLESHOOTING GUIDE
AT THE INTEGRATED CONTROL?
AFTER GAS VALVE
120 SECONDS?
IF LED LIGHT FLASHES
Appendix –AReplacement Parts List
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Appendix – B Wiring Diagrams
