Johnson Controls TM8T*MP, Installation Manual

Page 1: ...ressure 22 Blower Performance CFM Any Position CFM 24 These high efficiency compact units employ induced combustion reli able hot surface ignition and high heat transfer aluminized tubular heat exchan...

Page 2: ...binet support the ends of the furnace rather than lifting by the cabinet flanges at the return air openings bottom or sides or supply air opening 13 When lifting the furnace it is acceptable to use th...

Page 3: ...the National Fire Protection Association Inc Batterymarch Park Quincy MA 02269 or for only the NFGC contact the American Gas Association 400 N Capital N W Washington DC 20001 or www NFPA org CANADA NS...

Page 4: ...onoxide detector with an alarm and battery back up is installed on the floor level where the gas equipment is to be installed In addition the installing plumber or gasfitter shall observe that a batte...

Page 5: ...otated down for shipment In order to use the flanges remove the screw holding an individual flange rotate the flange so it is in the upward position and reinstall the screw then repeat this for all 4...

Page 6: ...CE ASSEMBLY PC SERIES COILS These upflow coils are designed for installation on top of upflow fur naces only If the coil is used with a furnace of a different size use a 45 transition to allow proper...

Page 7: ...will be necessary to seal the edges of the bottom panel to the casing using tape or other appropriate gasket material to prevent air leakage BOTTOM RETURN AND ATTIC INSTALLATIONS Bottom return applica...

Page 8: ...one support at the supply end of the furnace one support located approximately in the center of the furnace near the blower shelf and the third support should be at the return end of the fur nace Mai...

Page 9: ...Entry Gas Pipe Entry Thermostat Wiring FRONT 14 1 1 5 23 SUPPLY END C 24 38 20 5 B Gas Pipe Entry Thermostat Wiring 33 A 5 Electrical Entry Vent Connection Outlet Vent Connection Outlet 4 Diameter Ou...

Page 10: ...e of the furnace using any of the gas pipe entry on both sides of the furnace Refer to Figure 12 All filters and mounting provision must be field supplied All installa tions must have a filter install...

Page 11: ...1 0 87 0 73 0 67 1100 3 2 2 7 2 4 41 0 0 80 0 66 0 61 2500 LP 9 8 8 2 7 5 93 2 LP 2 44 2 03 1 86 TABLE 6 Nominal Manifold Pressure Low Fire First Stage Manifold Pressures in w c First Stage Manifold P...

Page 12: ...wn in Figures 17 or 18 Electronic thermostats may require the common wire to be connected Apply strain relief to thermostat wires passing through cabinet If air condition ing equipment is installed us...

Page 13: ...Volt Hot Cool XFMR W First Stage Heat Part Number S1 2HU16700124 1 G L 8 9 T F L 8 9 T PT 8 9 ID MODELS Part Numbers SAP Legacy 265903 031 09168 2 C 24 Volt Common R 24 Volt Hot W W1 First Stage Heat...

Page 14: ...n Y First Stage Compressor O B Reversing Valve L Malfunction Light Y2 Second Stage Compressor G Fan PP32U70124 THERMOSTAT E Emergency Heat R 24 Volt Hot Heat XFMR RC 24 Volt Hot Cool XFMR AUX Auxiliar...

Page 15: ...e 20 If furnace staging is desired with two single stage furnaces on a com mon duct where the gas burner on the first furnace operates on W1 and the gas burner on the second furnace operates on W2 the...

Page 16: ...to any type of B BW or L vent connec tor and shall be connected to a factory built or masonry chimney The furnace shall not be connected to a chimney flue serving a sepa rate appliance designed to bu...

Page 17: ...sub tracting the blockage area of all fixed louvers grilles or screens from the gross area of the opening 2 Apertures in a fixed louver a grille or screen shall have no dimen sion smaller than 0 25 0...

Page 18: ...nal area as the free area of the air supply inlet opening to which it connects 4 The blocking effects of louvers grilles and screens must be given consideration in calculating free area If the free ar...

Page 19: ...ng placed into operation while all other appliances connected to the venting system are not in operation 1 Inspect the venting system for proper size and horizontal pitch Determine that there is no bl...

Page 20: ...natural gas input rate by clocking meter 1 Turn off all other gas appliances and pilots 2 Run furnace for a minimum of 3 minutes in heating operation 3 Measure time in sec for gas meter to complete 1...

Page 21: ...22 164 327 818 64 56 112 281 23 157 313 783 66 54 109 273 24 150 300 750 68 53 106 265 25 144 288 720 70 51 103 257 26 138 277 692 72 50 100 250 27 133 267 667 74 48 97 243 28 129 257 643 76 47 95 23...

Page 22: ...essure by adjusting gas valve regulator screw for the appropriate gas per the following 4 After the manifold pressure has been adjusted re calculate the furnace input to make sure you have not exceede...

Page 23: ...urnace but not so long that cold air is blown into the heated space The fan off timing may be adjusted by positioning the jumper on two of the four pins as shown in Figure 26 MANIFOLD PRESSURE U TUBE...

Page 24: ...Low 1425 1380 1409 1378 1307 1274 1226 1180 1113 1025 120C20 High 2701 2620 2533 2429 2338 2227 2112 1993 1861 1706 Medium High 2125 2083 2046 1994 1955 1901 1857 1737 1621 1497 Medium Low 1664 1664...

Page 25: ...warm up period the gas valve then opens the gas starts to flow ignition occurs and the flame sensor begins its sensing function The blower motor will energize 30 seconds after the gas valve opens if a...

Page 26: ...description of 5 Red Flashes and 11Red Flashes below If the main limit switch opens five times within a single call for heat the control will indicate 4 Red Flashes and will enter a one hour soft loc...

Page 27: ...ill flash three green flashes when the memory has been cleared then will resume the normal slow green flash after a five second pause SECTION X REPLACEMENT PARTS LIST DESCRIPTION MOTOR MOTOR DIRECT DR...

Page 28: ...with wiring material having a temperature ra ng of at least 221 F 105C 2 Blower motor speed connections shown are typical but may vary by model and application LEGENDE DS Commutateur de porte MOT Mote...