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CONDENSING GAS FURNACE
INSTALLATION AND OPERATION MANUAL
MODELS:
CHB1-50N CDB1-50N
CHB1-75N CDB1-75N
CHB1-100N CDB1-100N
CHB1-125N CDB1-125N
: 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
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I. SAFETY INFORMATION This and the following page contain reproductions of the various warning and instruction labels placed on the Thermo Pride Condensing Gas Furnaces. Please read and comply with the contents of these labels. i
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All installations and services must be performed by qualified service personnel. This and the previous page contain reproductions of the various warning and instruction labels placed on the Thermo Pride Condensing Gas Furnaces. Please read and comply with the contents of these labels. WARNING: If you do not follow these instructions exactly, a fire or explosion may result causing property damage, personal injury or loss of life. A. This appliance does not have a pilot. It is equipped
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All installations and services must be performed by qualified service personnel. The following safety information should be read, understood, and followed by the installer. 1. Use only with type of gas approved for this furnace. Refer to furnace rating plate. 2. Connect this furnace to an approved vent system only. Combustion products must be carried outdoors. Refer to Section III, D thru H, of this manual. The following pages contain various warnings and cautions found througho
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All installations and services must be performed by qualified service personnel. : 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. : Personal injury or property damage could result from repair or service of this furnace by anyone other than a qualified heat
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All installations and services must be performed by qualified service personnel. INDEX SECTION BEGINNING PAGE I. SAFETY INFORMATION i II. FURNACE SPECIFICATIONS 1 III. GENERAL INSTALLATION 5 A. CODES AND CLEARANCES 5 B. FURNACE LOCATION 6 B1.CDB1 HORIZONTAL APPLICATION 7 C. REPLACING EXISTING FURNACE FROM A COMMON VENT 8 D. GENERAL REQUIREMENTS FOR VENTING CHB1/CDB1 9 E. SIDEWALL VENTING 11 E1. SINGLE PIPE (S
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All installations and services must be performed by qualified service personnel. II. FURNACE SPECIFICATIONS CHB1 SERIES MODEL NO. CHB1-50 CHB1-75 CHB1-100 CHB1-125 50,000 75,000 100,000 125,000 BTU/HR INPUT BTU/HR OUTPUT 47,000 72,000 94,000 116,000 HT. OF CASING 44-1/4” 44-1/4” 44-1/4” 44-1/4” 17” 17” 21” 24” WIDTH OF CASING DEPTH OF CASING 27-1/2” 27-1/2” 27-1/2” 27-1/2” WARM AIR OUTLET 15 x 18 15 x 18 19 x 18 22 x 18 RETURN AIR INLET 25 x 16 25 x 16 25 x 16 25 x 1
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All installations and services must be performed by qualified service personnel. CDB1 SERIES MODEL NO. CDB1-50 CDB1-75 CDB1-100 CDB1-125 BTU/HR INPUT 50,000 75,000 100,000 125,000 BTU/HR OUTPUT 47,000 70,000 94,000 116,000 HT. OF CASING 46-1/4” 46-1/4” 46-1/4” 46-1/4” WIDTH OF CASING 17” 17” 21” 24” DEPTH OF CASING 27-1/2” 27-1/2” 27-1/2” 27-1/2” 15 x 18 15 x 18 19 x 18 22 x 18 WARM AIR OUTLET RETURN AIR INLET 15 x 22 15 x 22 19 x 22 22 x 22 DIA. OF FLUE 2” 2” 3
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All installations and services must be performed by qualified service personnel. INSTALLATION PARTS PACKAGES - CHB1-50/75 PARTS PACKAGE DESCRIPTION PART # QUANTITY #S00S4405/4406 2-3/8” ID radiator hose 410017 1 Thermostat lead bushing 350750 1 PVC trap assembly 320816 1 #8 x ¾ coated TEK screws for 300283 4 mounting trap & inlet/outlet collars 11/16” OD x 1/2” ID vinyl tubing 410060 24” 2 x 4 electrical J-box 350024 1 2 x 4 electrical J-box cover 350020 1 #8 x ½
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All installations and services must be performed by qualified service personnel. Drain hose grommet 350446 1 Spring clamp, 11/16” 300299 3 Installation notice MG-987 1 PVC tee assembly, 2 x 3” dia. 320817 1 CPVC XPVC adapter 320833 1 Gas Conversion Kit AOPS7679/7664 1 INSTALLATION PARTS PACKAGES - CDB1-50/75 PARTS PACKAGE DESCRIPTION PART # QUANTITY #S00S4409/4410 2-3/8” ID radiator hose 410017 1 Thermostat lead bushing 350750 1 PVC trap assembly 320816 1 #8 x
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All installations and services must be performed by qualified service personnel. #8 x ½ TEK screws for 300208 2 mounting 2 x 4 J-box #10-32 x ½ green ground screw 300109 1 #10-32 hex nut 300110 1 3/16” dia. star washer 300270 1 Grounding instructions MG-966 1 Wire nut 300132 2 3” stainless steel hose clamp 300276 2 J-box wire bushing 350016 1 Drain hose grommet 350446 1 Spring clamp, 11/16” 300299 3 Installation notice MG-987 1 PVC tee assembly, 2 x 3” dia. 320817 1
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All installations and services must be performed by qualified service personnel. 2. The BTU output capacity of the furnace proposed for installation should be based on a heat loss calculation made according to the manuals provided by the Air Conditioning Contractors of America (ACCA) or ASHRAE. 3. MINIMUM CLEARANCES TO COMBUSTIBLE MATERIALS TABLE 1 FROM SIDES OF TOP OF FROM THE SIDE OF MODEL NO. FRONT FURNACE & REAR PLENUM FLUE OR VENT PLENUM CHB1-50 0 IN. 6 IN. 0 IN. 0 IN. 1 IN.
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All installations and services must be performed by qualified service personnel. 4. This furnace must be connected to a drain in accordance with these instructions. If it is not practical to connect the unit to a drain, a condensate pump must be used and can be ordered as an accessory, part number 350225. If an acid neutralizer kit is required by local code or the customer, it is available under part number 320095. B1. CDB1 HORIZONTAL APPLICATION The CDB1-50, 75, 100, and 125 furna
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All installations and services must be performed by qualified service personnel. Figure 1 The horizontal furnace installation should be on a service platform large enough to allow for proper clearances on all sides and service access to the front of the furnace (See Table 1). If the furnace is suspended, it must be supported at both ends and in the middle with clearance allowed for removal of both access doors. Gas supply line contact is only permissible between lines formed by the in
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All installations and services must be performed by qualified service personnel. D. General Requirements For Venting Models CHB1 / CDB1 The CHB1 / CDB1 furnace venting system must be installed by a qualified service person in accordance with local installation codes and these instructions. In the absence of applicable local codes, conform to the National Fuel Gas Code, NFPA 54 /ANSI Z223.1-2002, or latest edition thereof. Installation shall, at least, conform to the following requireme
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All installations and services must be performed by qualified service personnel. intake systems must be considered. This includes all elbows, or equivalent pipefittings, used inside the furnace jacket in addition to those used to construct the termination. Furthermore, a credit of 5-feet of straight pipe may be taken for each elbow, up to maximum of three (3) elbows, which is dropped from the maximum permissible number for each system. Table 2: Maximum Permissible Exhaust Vent and Com
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All installations and services must be performed by qualified service personnel. NOTICE: The furnace model series CHB1 / CDB1 may be vented either through the sidewall or the roof. For sidewall instructions, continue to the following section. For roof venting, refer to Section III G, of this manual E. Direct Venting Through a Sidewall 1. Vent and combustion air pipes may pass through a maximum wall thickness of 18 inches. The minimum wall thickness is 2 inches. Referring to
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All installations and services must be performed by qualified service personnel. Figure 3: Typical Relative Locations of Direct Vent Terminations When Sidewall Venting 3. Exhaust Vent Terminal Location Clearance Requirements a. The vent terminal shall be located at least 3-feet above any forced air inlet located within 10-feet. Refer to Figure 4 for a depiction of the minimum required clearances between vent terminations and building features according to the National Fuel Gas
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All installations and services must be performed by qualified service personnel. Figure 4: NFGC Minimum Clearances Between the Vent Terminal and Various Building Features 4. Vent Terminal Location Guidelines 13
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All installations and services must be performed by qualified service personnel. : Bushes, shrubs, or any vegetation that may restrict the flow of flue products must be kept away from vent and air intake terminations. Terminations must also be kept clear of any leaves, weeds, combustible materials, snow, and ice build-up. Avoid locating the vent terminal over areas where dripping of condensate, or small pools of acidic condensate, could create a problem. In addition to following any loc
