Thermo Pride CDX1-100N Installation And Operation Manual Download Page 2

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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.

Summary of Contents for CDX1-100N

Page 1: ...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 R...

Page 2: ...ied service personnel i 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 Furnace...

Page 3: ...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 lab...

Page 4: ...lants dry cleaning fluids degreasers and removers Other harmful compounds may come from bleaches air fresheners or mastics Vapors from such products can form acid compounds when burned in a gas flame...

Page 5: ...e personnel iv 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 de...

Page 6: ...NTING CHX1 CDX1 9 E SIDEWALL VENTING 10 E1 SINGLE PIPE SIDEWALL VENTING OPTION 12 F INSTALLATION OF OUTSIDE VENT AIR INTAKE TERMS 13 G CONNECTING FURNACE TO VENT AIR INTAKE TERMS 14 H CONNECTING FURNA...

Page 7: ...CFM from 2 5 w c EXTERNAL STATIC PRESSURE COOLING COOLING COOLING COOLING TAP A 1000 1200 1400 COOLING TAP B 800 1000 1200 COOLING TAP C 1200 1400 1600 COOLING TAP D 1400 1600 2000 HEATING HEATING HEA...

Page 8: ...0 1200 1400 COOLING TAP B 800 1000 1200 COOLING TAP C 1200 1400 1600 COOLING TAP D 1400 1600 2000 HEATING HEATING HEATING HEATING TAP C High fire Low fire 1012 826 1340 1094 1673 1366 TEMPERATURE RISE...

Page 9: ...wire bushing 350016 1 Drain hose grommet 350446 1 Spring clamp 11 16 300299 3 Installation notice MG 987 1 PVC tee assembly 2 dia 320818 1 INSTALLATION PARTS PACKAGES CHX1 100 125 PARTS PACKAGE S00S43...

Page 10: ...83 6 11 16 OD x ID vinyl tubing 410060 24 2 x 4 electrical J box 350024 1 2 x 4 electrical J box cover 350020 1 8 x TEK screws for mounting 2 x 4 J box 300208 2 10 32 x green ground screw 300109 1 10...

Page 11: ...bing 410060 24 2 x 4 electrical J box 350024 1 2 x 4 electrical J box cover 350020 1 8 x TEK screws for mounting 2 x 4 J box 300208 2 10 32 x green ground screw 300109 1 10 32 hex nut 300110 1 3 16 di...

Page 12: ...test edition 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...

Page 13: ...part number 350225 If an acid neutralizer kit is required by local code or the customer it is available under part number 320095 B1 CDX1 HORIZONTAL APPLICATION The CDX1 75 100 and 125 furnaces may be...

Page 14: ...h be connected to the lower tap on the front of the collector box See Figure 1 Figure 1 The horizontal furnace installation should be on a service platform large enough to allow for proper clearances...

Page 15: ...mmon vented with any other appliance including those burning solid fuels 5 Horizontal runs of exhaust vent pipe shall slope upward at least 1 4 per foot from the outlet of the furnace CHX1 s or the ou...

Page 16: ...coupling to the collar is sufficient 9 Vent connections shall be checked for leakage with the furnace induced draft blower running and with the vent termination blocked A mild soap and water solution...

Page 17: ...erminal shall be located at least 3 ft above any forced air inlet located within 10 ft b The terminal shall be at least 1 ft below 1 ft horizontally from or 1 foot above any door window or gravity air...

Page 18: ...s to prevent blockage by snow accumulation or drifting Measures should be taken to prevent the entry of corrosive chemicals or vapors to the combustion and ventilation air supply Such chemicals includ...

Page 19: ...lled at this time Glue a coupling or elbow to each pipe depending on your installation with the PVC pipe cement being careful to maintain the proper orientation of the elbows Complete the assembly of...

Page 20: ...service personnel 14 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...

Page 21: ...All installations and services must be performed by qualified service personnel 15 Figure 7...

Page 22: ...ure the length of 2 dia PVC pipe needed to clear the furnace side casing while allowing for the 2 3 8 rubber radiator hose to be installed within the casing of the furnace Cut the 2 dia PVC measured l...

Page 23: ...r preparation of the 2 PVC pipe use silicone type sealant on the 2 dia PVC elbow 2 dia PVC tee for CDX1 horizontal applications before inserting it onto the outlet of the inducer Install a black coate...

Page 24: ...al burner box collar does not require silicone sealant or PVC cement Attach the PVC elbow to the sleeve and then to the coupling where required using silicone type sealant see figure 12 c Install the...

Page 25: ...ned in a gas flame Should acid compounds form in your furnace it may reduce the life of the furnace H CONNECTING THE FURNACE TO ROOF VENT AIR TERMINATIONS The furnace may be vented vertically through...

Page 26: ...y qualified service personnel 20 I CONDENSATE DRAIN LINE AND TRAP ASSEMBLY 1 The following diagrams show the typical drain and trap connection for a CHX1 and CDX1 furnace Figure 14 TRAP ASSEMBLY MOUNT...

Page 27: ...exit The connection change can be accomplished as follows Refer to Figure 16 a Locate and disconnect the drain hose at the collector box from its factory shipped connection location b Locate and unca...

Page 28: ...ly acidic with a pH of 3 5 Cola drinks with a pH of 3 1 are actually more acidic If local codes require a neutralizing kit the kit may be ordered using part no 320095 Instructions included with the ne...

Page 29: ...this manual This test must be conducted with the unit operating and should include the furnace piping and gas valve Never use an open flame to check for a gas leak Care must be taken not to wet electr...

Page 30: ...into position by tape or similar means Position the open end of the filter rack so that it is accessible for filter replacement Once the filter rack is positioned correctly scribe a line along the in...

Page 31: ...ed on the CFM generated by the furnace for standard heating speeds only The following formula can be used to determine the minimum filter area required for cooling if the unit is equipped with cooling...

Page 32: ...These terminals provide line voltage 110 20VAC for the control of these accessories See Figure 21 NOTICE It is important to confirm that the operating voltage of the humidifier or EAC being installed...

Page 33: ...NEL WIRING Figure 21 TURN OFF THE ELECTRICAL POWER to the furnace before attempting to disconnect blower wiring DIP SWITCH S1 HEAT OFF DELAY SW1 SW2 SECS ON OFF ON OFF ON ON OFF OFF 60 SEC 90 SEC 120...

Page 34: ...40 600 1200 CHX1 100 1 8 Off 1015 1243 600 1200 CDX1 125 1 7 Off 8 On 1366 1673 700 1400 CHX1 125 1 8 Off 1270 1556 700 1400 For adjustments to the Cooling CFM settings as well as all additional CFM c...

Page 35: ...IS NOT ENERGIZED A SEQUENCE OF OPERATIONS 50V61 143 CONTROL ENERGIZED INDUCER ENERGIZED ON HIGH SPEED THERMOSTAT CALLS FOR HEAT W1 OR W1 W2 CONTACTS CLOSE LOW FIRE PRESSURE SWITCHES SENSES ADEQUATE D...

Page 36: ...GIZED THE IGNITOR IS TURNED OFF AND THE 50V61 143 CONTROL GOES INTO RETRY SEQUENCE THE RETRY SEQUENCE PROVIDES A 60 SECOND WAIT BEFORE IGNITION RETRY RETRY IS ATTEMPTED WITH A DIFFERENT VOLTAGE SETTIN...

Page 37: ...ECONDS CIRCULATING AIR FAN IS ENERGIZED AT LOW FIRE HEATING SPEED OR HIGH FIRE IF W2 IS ENERGIZED THE OPTIONAL ELECTRONIC AIR CLEANER AND HUMIDIFIER ARE ENERGIZED IF THERMOSTAT W2 CONTACTS ARE CLOSED...

Page 38: ...r See Section III J of these instructions on the installation of gas piping It may be necessary to purge the air out of the gas line for initial start up of the furnace after installation This should...

Page 39: ...ply at the appliance service manual gas shutoff valve or for LP gases shut off the gas at the storage tank service valve BEFORE removing the a gas valve inlet pressure tap plug b manometer or gauge an...

Page 40: ...geable Either device is referred to below as a pressure gauge NOTICE This 2 stage gas valve has two separate gas pressure regulators Checks and adjustments must be made at both high fire high adjustme...

Page 41: ...racy When more than one 1 cubic foot of gas is consumed divide the total time by the number of cubic feet for comparison to the figures in Table 6 10 Compare actual heat input rate with our recommende...

Page 42: ...Mode and Type of Fuel Fuel Gas Type Propane Natural Operating Mode and Model Series High Fire CHX Low Fire CDX Low Fire High Fire CHX Low Fire CDX Low Fire Normal Manifold Pressure in W G 10 0 0 3 4...

Page 43: ...ly to operate the furnace at full high fire input rate under present conditions If necessary consult your gas supplier or qualified heating contractor for recommendations to alleviate the problem 19 T...

Page 44: ...s to have yellow or orange colored tips If combustion problems are evident it may indicate problems with either the furnace air supply or the vent system Refer to the installation and maintenance sect...

Page 45: ...dials 46 78 1 Determine time for two dial revolutions 47 77 2 Use Table directly 48 75 49 73 For two cubic foot per revolution gas meter dials 50 72 1 Determine time for one complete dial revolutions...

Page 46: ...ll first reduce rate to the low fire setting As the flue becomes more blocked the pressure switch will function and completely shut off the main burners 4 Block the PVC pipe inlet gradually with a fla...

Page 47: ...TROUBLESHOOTING FAMILIARIZE YOURSELF WITH THE START UP AND CHECKOUT PROCEDURE ALL INSTALLATION AND SERVICES MUST BE PERFORMED BY QUALIFIED HEATING CONTRACTORS To assist you in troubleshooting this fu...

Page 48: ...hes then pause low pressure switch stuck open 4 flashes then pause open high temperature limit switch 5 flashes then pause not used 6 flashes then pause 115 V AC power reversed 7 flashes then pause lo...

Page 49: ...ACROSS R AND B C CHECK FUSE ON W R 50V61 143 NO IS THERE 24 VOLTS ACROSS R AND W1 CHECK WIRING TO THERMOSTAT IF OK REPLACE THERMOSTAT YES NO IS THERE LINE VOLTAGE ACROSS INDUCER POWER TERMINALS IND H...

Page 50: ...SURE SWITCH AND FOR BLOCKAGE IN FLUE IF OK REPLACE DUAL PRESSURE SWITCH IS THERE VOLTAGE ACROSS HOT SURFACE IGNITOR TERMINALS IGN IGN N AT THE 50V61 143 CONTROL AFTER 25 SECOND PREPURGE IS THE HIGH LI...

Page 51: ...NDUCER POWER TERMINALS IND HI TO IND N REPLACE THE 50V61 143 CONTROL CHECK CONNECTIONS TO INDUCER IF OK REPLACE INDUCER DOES BURNER STEP TO HIGH FIRE IS THE HIGH FIRE PRESSURE SWITCH CLOSED YES NO YES...

Page 52: ...IS THE VARIABLE SPEED AIR FAN OPERATING DOES BLOWER SPIN FREELY CONFIRM IF EITHER BLOWER WHEEL IS RUBBING AGAINST HOUSING OR MOTOR SHAFT IS SPINNING FREELY AND REPAIR OR REPLACE AS NECESSARY DOES SYST...

Page 53: ...N THERMOSTAT IS SATISFIED CHECK FOR 24 VOLTS AT GAS VALVE REPLACE GAS VALVE CHECK FOR SHORT IN WIRE TO THERMOSTAT AND CORRECT IF NECESSARY DOES THE CIRCULATING AIR BLOWER TURN OFF AFTER THERMOSTAT IS...

Page 54: ...All installations and services must be performed by qualified service personnel 48 Appendix A Replacement Parts List 1 Replacement parts list for CHX1 75 CHX1 100 and CHX1 125...

Page 55: ...All installations and services must be performed by qualified service personnel 49...

Page 56: ...All installations and services must be performed by qualified service personnel 50 2 Replacement parts list for CDX1 75 CDX1 100 and CDX1 125...

Page 57: ...All installations and services must be performed by qualified service personnel 51...

Page 58: ...All installations and services must be performed by qualified service personnel 52 Appendix B Wiring Diagrams...

Page 59: ...All installations and services must be performed by qualified service personnel 53...

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