Ducane CMP A Series, Installation Instructions Manual

Page 1: ...s a line voltage 115V connection to the junction box a thermostat hook up as per the wiring diagram a gas line connection and a condensate drain connection This furnace can be installed in either upflow or horizontal 0eft airflow positions Do not install this furnace outdoors or use for temporary construction heating This furnace has been designed to interface with split system cooling equipment a...

Page 2: ...NE CONTACT ROOF LINE CONTAC_r O 4Ly PERMISSIBLE BETV_I_I TOP CORNERS OF FURNACE N4D 8UILDII_ JOISTS S _JOS OR KEEP ALL INSULATING MATERIAL CLEAR OF FURNACE Ill JIlTING MATERIt_I S MAy BE COCdI_JS11BLE Furnace must not lean back It must be level or tilt up to 2 to the front See Figure 2 2 A clearance of at least 30 should be provided at the front of the unit for servicing For attic installations th...

Page 3: ...B149 Installation Codes or applicable provisions of the local building codes The furnace shall be installed in a location in which the facilities for ventilation permits satisfactory combustion of gas proper venting and maintenance of ambient temperature at safe limits under normal conditions of use The furnace shall be located so as not to interfere with proper circulation of air In addition to a...

Page 4: ...f rectangular air ducts must not be less than 3 inches _ARNING DO not biock tfie com6usti6_ or ventilatid_ a _ openings in tlie furnace Any bloCkag_ _ii result in impfope_ cOmbustion and ma_ re_ _lt n WARNING If the blocked vent pressure switch P1 activates to shut the furnace down the vent system must be checked and cleared Failure to do so may result in serious bodily harm or nuisance furnace sh...

Page 5: ...2 Noncombustible flexible duct connectors are recommended to connect both the supply and return duetS to the furnace 3 In cases where the return air grille is located close to the blower inlet there should be at least one 90 air turn between blower and retUrn grille Further reduction in sound can be accomplished by installing acoustical air taming vanes and or lining the inside of the duct with ac...

Page 6: ... the rating plate must not be exceeded Before any system of gas piping is finally put into service it should be carefully tested to determine if it is gas tight Check all piping for leaks using soapy water and a brush The piping must stand a pressure of six 6 inches of mercury for a period of ten 10 minutes or as required by local authority WARNING The furnace and its individual shutoff valve must...

Page 7: ...ws should be tightened securely so that the gasket seals the connector to the top panel in order to prevent air leakage into the burner box When installing furnace as non direct vent one pipe a field supplied PVC elbow see Table 1 8 for size required must be attached to the air inlet connector with the elbow open end facing front Figure 1 7 When installing furnace as direct vent two pipe air inlet...

Page 8: ...specified by the pipe manufacturer 6 Cheek all local codes for any variance NOTE If 2 I 2 or 3 vent pipe is required the appropriate supplied adapter must be used Install the adapter at the vent outlet of the vent drain tee see instructions in vent kit Figure 2 8 UPFLOW VENTING OPTIONS Figure 3 8 LEFT HORIZONTAL VENTING 12 MINIMUM CLEARANCE P_EQUIRED The vent system can be installed through an exi...

Page 9: ...in This furnace must use the condensate trap supplied with the unit See Figure 2 9 or altemate condensate drain trap arrangement See Figure 3 9 for proper drain installation The ahemate arrangement should be used for uptTow installations when the vent and condensate drain must be on opposite sides of the furnace or for horizootal installation when space below the unit to put the drain trap is at a...

Page 10: ...f 2 pipe that is long enough to insert throughthe knockout from step 1 and be inserted into the second elbow in step 3 leave approximately one inch 1 protruding out of the left side of the fairnace This piece of pipe will pass over the top of the combustion air blower motor and in front of the combustion air blower housing The 2 tee supplied in the vent drain kit is then attached to this pipe as s...

Page 11: ...ower motor and inducer motor will be energized as the unit cools As soon as the limit switch closes the burners will relight but unless the overheating condition is corrected the furnace will cycle on limit If the furnace is cycling on the limit switch corrective action must be taken Failure to correct this condition could possibly damage the heat exchangers and may not be covered by the walTanty ...

Page 12: ...flame sensor for a distance of 3 8 m 1 2 See Figure 2 12 The adjusting screw for the pilot flame is located on the main gas control See Figure 1 12 It will be necessary to remove the burner access panel to properly observe the pilot See Instructions on Page 16 for removal replacement information Figure 2 12 PILOT BURNER ADJUSTMENT 1 8 MAIN BURNER FLAME 3JS to _ 2 PILOT ADJUSTMENT CAUTION Many soap...

Page 13: ... the gas supply in your area is derated Gas deration negates the necessity of performing any adjustment on the furnace If your gas supply is not derated and regardless of the type of gas used installation of this furnace at an elevation above 2 000 ft requires an input reduction at the rate of four percent 4 for each 1 000 ft above sea level Unless an orifice change is specified by an applicable c...

Page 14: ...tomatic gas valve before there is damage to the furnace The loss of power to the gas valve will shut off the gas burners Should this occur it will be necessary to determine the cause of the rollout correct the condition that caused it and reset the flame rollout switch WARNING Hand drilling of orifices is never acceptable since it could lead to delayed ignition overfLring improper combustion flash...

Page 15: ... input rate and adjust if necessary 11 Perform a safety check of the limit control and blocked vent shutoff switches and the blocked drain shut off switch 12 Check the air filter clean and or replace as necessary 13 Periodic cleaning of condensing coil and drain lines maybe necessary for proper operation 14 Replace the appropriate access panel or door Ne_er use an 6pen flame _hen _fing for g_ ie_i...

Page 16: ... the unit two in the cabinet at the sides of the blower door opening and two at the top rear of the control box Be sure to support the control box so that it does not fail 5 Rotate the control box out of the cabinet and support it so that no strain is placed on any wiring It may be necessary to disconnect the electrical supply and thermostat wiring from the control board 6 Remove the blower retain...

Page 17: ... 1465 1410 1350 1260 1210 1115 990 810 550 Mtr PIN 20279901 HIGH 1685 1655 1615 1540 1450 1330 1235 1130 960 720 CM PA100U4 12 X 9 WHEEL LOW 1420 1400 1360 1335 1290 1245 1190 1120 1060 995 1 2 HP MOTOR IVIED 1715 1690 1665 1610 1550 1480 1400 1320 1245 1145 Mtr PIN 20062501 HIGH 2055 2020 1945 1865 1795 1710 1640 1535 1410 1340 CMPAI25U5 12 X 12 WHEEL LOW 1425 1400 1375 1345 1320 1290 1245 1185 1...

Page 18: ...onnect to power supply Check fuse wiring or circuit breaker Check transformer replace Check fuse on fan timer board replace Check all wiring and wiring connections Check to see if main valve is opening or turned ON Look for loose or broken wiring connections If no deficiency is found replace valve assembly Check heat exchanger venting system and condensate removal tubing for blockage See Figure 1 ...

Page 19: ... CHECKOUT PROCEDURF i _y_ I AJ_ ILOV_R SY TEId J y_ R_C_ IGNrrlE_ RUG _S MI_ I I REC O_ Ci RLOIrBL_W_r_ C4ILi I NVOLT I _SETA T _4DVIk_OF I e_TC_ _4V CT_ 4 e_ T j i_ _ I MA 4 yALV_ OPL NS _V4 kINN_R UG_ GO_ G_rMcY Vdl_lPLOTBk_ _ R i_ F_THCFTHE _OVEAF_G XX_ i I i ST_r Gn_VeJve mSYSTEM SEQUENCE OFOPERA110X E r GAY l I 0 ...

Page 20: ...LET VENT PIPEDIA MAX OVER MAX ELECTRICAL NET CURRE_rl UNIT SUPPLY MIN WEIGHT PROTECTION AMPS WIRE LBS SIZE AWG F G 12 21 5 8 12 21 5 8 12 21 5 8 12 21 5 8 12 21 5 8 15 I 2 21 5 8 15 I 2 21 3 8 19 21 5 8 H 2 2 2 1 2 2 2 1 2 3 3 3 15 5 7 14 131 15 9 2 14 131 15 6 5 14 140 15 9 2 14 140 15 9 2 14 140 15 8 4 14 167 15 10 6 14 167 20 12 7 12 193 REDUCER SUPPLIED WITH FURNACE WHEN CONNECTION SIZE IS D_F...

Page 21: ...igure 1 21 SEE FIGURE 1 22 FOR IMPORTANT NOTES YL YL F _ HEAT I__Y IWO WIRE TF_ R_TAT CONNECT TO R W MULTI P01SEF DNDENSING GAS FURNAFFWIIH HONEYWELLsTg 20CFAN TIMER SVg501 SM_J_TVALVE 20246506 Issue 9939 Page 21 of 22 ...

Page 22: ...Y OF THE ORIGINAL WIRE AS SUPPLIED WITH THE FURNACE MUST BE REPLACEO IT MUST 8E REPLACED WITH WIRING MATERIAL HAVING A TEMPERATURE RATING OF AT LEAST 105 C AND BE A MINIMUM OF 15 GA AWG COPPER STRAND WIRE 4 CONNECT REOUIREO MOTOR LEAD TO HEAT TERMINAL ON CIRCUIT BOARD TO OELIVER A TEMPERATURE RISE WITHIN THE RANGE SPECIFIEO ON THE RATING LABEL CONNECT UNUSEO LEADS TO THE UNUSEO MOTOR LEADS 5 SET T...