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TWO STAGE CONDENSING GAS FURNACE
INSTALLATION AND OPERATION MANUAL
MODELS:
FOR USE WITH NATURAL GAS OR LP GAS (PROPANE)
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
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All installations and services must be performed by qualified service personnel. I. SAFETY INFORMATION This and the following page contain reproductions of the various warning and instruction labels placed on the Thermo Pride Two Stage 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 Two Stage Condensing Gas Furnaces. Please read and comply with the contents of these labels. The following safety information should be read, understood, and followed by the installer. ii
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All installations and services must be performed by qualified service personnel. 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 throughout the Thermo Pride Highboy and Dual Poise Two Stage Condensing Gas Furnace Manual. Please rea
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All installations and services must be performed by qualified service personnel. : 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. iv
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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 6 A. CODES AND CLEARANCES 6 B. FURNACE LOCATION 7 B1.CDX1 HORIZONTAL APPLICATION 7 C. REPLACING EXISTING FURNACE FROM A COMMON VENT 9 D. GENERAL REQUIREMENTS FOR VENTING CHX1/CDX1 9 E. SIDEWALL VENTING 10 E1. SINGLE PIPE (SIDEWAL
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All installations and services must be performed by qualified service personnel. II. FURNACE SPECIFICATIONS CHX1 SERIES MODEL NO. CHX1-75 CHX1-100 CHX1-125 BTU/HR INPUT (High fire/ Low fire) 75,000 / 52,000 100,000 / 70,000 125,000 / 87,500 BTU/HR OUTPUT (High fire/ Low fire) 70,875 / 49,612 94,500 / 66,150 117,500 / 82,250 HEIGHT OF CASING 44-1/4” 44-1/4” 44-1/4” 17” 21” 24” WIDTH OF CASING DEPTH OF CASING 27-1/2” 27-1/2” 27-1/2” WARM AIR OUTLET 15 x 18 19 x 18 22 x 18 25
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All installations and services must be performed by qualified service personnel. CDX1 SERIES MODEL NO. CDX1-75 CDX1-100 CDX1-125 BTU/HR INPUT (High fire / Low fire) 75,000 / 56,250 100,000 / 75,000 125,000 / 93,750 69,750 / 52,312 93,000 / 69,750 116,250 / 87,187 BTU/HR OUTPUT (High fire / Low fire) HEIGHT OF CASING 46-1/4” 46-1/4” 46-1/4” 17” 21” 24” WIDTH OF CASING DEPTH OF CASING 27-1/2” 27-1/2” 27-1/2” WARM AIR OUTLET 15 x 18 19 x 18 22 x 18 15 x 22 19 x 22 22 x 22 RET
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All installations and services must be performed by qualified service personnel. INSTALLATION PARTS PACKAGES – CHX1-75 PARTS PACKAGE DESCRIPTION PART # QUANTITY #S00S4378 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 TEK scre
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All installations and services must be performed by qualified service personnel. INSTALLATION PARTS PACKAGES – CDX1-75 PARTS PACKAGE DESCRIPTION PART # QUANTITY #S00S4380 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 6 mounting trap & inlet/outlet collars 11/16” OD x ½” 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 TEK screws
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All installations and services must be performed by qualified service personnel. INSTALLATION PARTS PACKAGES – CDX1-100-125 PARTS PACKAGE DESCRIPTION PART # QUANTITY #S00S4381 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 TEK
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All installations and services must be performed by qualified service personnel. III. GENERAL INSTALLATION These Category Type IV furnaces are shipped completely assembled and wired (internally). See the Dealer Receiving and Freight Claim Procedure Section of the price guide for parts shortage or damage. The furnace and duct system must be adjusted to obtain a temperature rise of 55°F to 85°F through the furnace after installation. (See rating label located on side panel inside the furn
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All installations and services must be performed by qualified service personnel. Equipment must be installed in accordance with regulations of the National Board of Fire Underwriters. Authorities having jurisdiction should be consulted before installations are made. B. FURNACE LOCATION : These high efficiency condensing furnaces are not certified for and shall not be vented into a standard or any type of chimney. The following shall be considered for locating the furnace: 1. F
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All installations and services must be performed by qualified service personnel. NOTE: When the CDX1 is installed as horizontal unit, it is imperative that the auxiliary limit switch and bracket be located on the upper side of the house air blower; the burner rollout switch located on the burner box be relocated to the side of the burner box; and that the hose from the single tap pressure switch be connected to the lower tap on the front of the collector box (See Figure 1). Figure 1
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All installations and services must be performed by qualified service personnel. Equipment must be installed in accordance with regulations of the National Board of Fire Underwriters and the National Fuel Gas Code. Authorities having jurisdiction should be consulted before installations are made. C. REPLACING AN EXISTING FURNACE FROM A COMMON VENT : These furnaces may not be common vented with any other appliance. D. GENERAL REQUIREMENTS FOR VENTING CHX1/CDX1 The CHX1/CDX1
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All installations and services must be performed by qualified service personnel. NOTES: 1 The drain tee supplied with CHX1/CDX1 furnaces count as 1 elbow. 2 (2) 45° elbows can be substituted for (1) 90° elbow. Care should be taken to plan out the vent system to be as short as possible (but not shorter than 8 ft.) and to contain as few elbows as possible to insure the best possible operation of the furnace. 8. A hack saw may be used to cut the PVC pipe. It must be cut smoothly at r
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All installations and services must be performed by qualified service personnel. NOTICE: If exterior sidewall building materials are subject to degradation from flue gases or moisture, a minimum 12” diameter shield made from stainless steel or high density plastic shall be used for protection. 2. The PVC vent termination elbow must be installed in accord with local codes and these instructions. The bottom edge of the vent termination elbow must be installed at least 12 in. above the ou
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All installations and services must be performed by qualified service personnel. Figure 4 : The vent and air intake elbows must be kept away from bushes, shrubs or any vegetation that may restrict the flow of flue products. It must also be kept clear of any leaves, weeds or other combustible materials. Keep the vent hood clear of snow. Avoid locating the terminals in areas where standing water or condensate drippage may be a problem. VENT TERMINAL LOCATION GUIDELINES In addition to fo
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All installations and services must be performed by qualified service personnel. F. INSTALLATION OF OUTSIDE VENT/AIR INTAKE TERMINATIONS NOTICE: Installation of the outside exhaust and combustion air vents must be performed by a qualified installer or service person in accord with local codes, the National Fuel Gas Code (NFPA 54, ANSI Z223.1 or latest edition) and the sections on venting in this manual. 1. Observing all clearances specified in this manual, cut two 2-3/8” diameter ho
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All installations and services must be performed by qualified service personnel. G. CONNECTING FURNACE TO THE VENT/AIR INTAKE TERMINATION AND DRAIN 1. The following diagrams show the typical vent and air inlet connection for a CHX1 and CDX1 furnace as well as a list of the parts that will be needed to install each. Figure 6 14
