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Installation & Start

1. 758 110 788 116 amp 689 100 QUTDOUR TEMP DOR TEM 115 46 ee 8 2 105 41 v 2621 90 95 35 o 515 46 o oO oO 2 e 85 28 TENIS 05 iid S amp bd mgg 65 ay 3552 80 d og E p 75 24 A TUE N WY 65 18 Wen Q8 S a 5 9c 8558 a 483 a70 55 13 pi zo 4 aay 45 7 p 414 260 ot e ES I z 5 2 B lS 2 5345 504 8c 2 N 276 40 345 5C T 30 z 0 ac 30 40 50 60 70 80 80 30 0 52 60 7 80 9c SUCTION LINE TEMPERATURE F BUCT CN ANE TEMPERATURE T 4 10 16 21 27 32 1 4 15 16 21 zr a2
2. 758 110 758 110 BEI DUTDOOR TEMP i i 125 52 L1 689 100 cede 689 100 HH OUTDOOR TEMP a 105 41 P viU tn 2621 90 95 35 2621 90 l 115 46 p 8 Bes und E 8 105 41 e amp tp S5 35 S 75 24 Sosa 552 60 552 RO 85 29 Z E 65 18 x 75 24 a 5 2 W v 55 13 w Im 5 B 7 X 85 18 i 483 70 45 7 H 483 amp 70 n i t kf 55 13 amp E a z 45 7 E 414 z60 2 l Z g 414 ggo 5345 50 6 345 50 2 3 uw aq 276 40 276 40 LI 30 30 30 40 50 60 70 80 g0 30 40 50 60 70 80 g0 SUCTION LINE TEMPERATURE F2 SUCTION LINE TEMPERATURE F 4 10 16 21 27 32 4 10 16 21 27 32 SUCTION LINE TEMPERATURE C SUCTION LINE TEMPERATURE C i xy 00046 i a COQ Fig 18 Cooling Charging Chart PY1P018 Units Fig 18 Cooling Charging Chart PY1P024 Units 758 110 758 110 H HH HH 689 100 OUTDOOR IDE I 689 100 OUTDOOR TEMP 115 48 n 115 46 B esi g0 105 4 2621 90 105 4 3 z 95 35 a 2 e 33 a g 85 29 i g 2 Icco s 735 24 552 B0 75 24 Z osa 480 65 18 x WP E 65 18 gom IMS P 483 70 2 a gi 483 70 55 13 i 45 7 Hi y a z a u B 414 250 414 260 5 amp 9 lg E 34d 7 produ 5345 50 345 50 a wo 276 40 278 40 30 H 30
3. so 0 ao 80 7C 82 90 SUSTION LIME TEMPE RATURE T P 10 6 SZC7ION L NE TEMPERATURE 2 CO0054 Fig 30 Cooling Charging Chart PYZP060 Units A CAUTION When servicing gas train do not hit or plug orifice spuds REMOVAL OF GAS TRAIN To remove the gas train for servicing 1 Shut off main gas valve 2 Shut off power to unit and install lockout tag Remove unit access panel Sce Fig 32 Disconnect gas piping at unit gas valvo Remove wires connected to gas valve Mark cach wire Remove the mounting screw that attaches the burner rack to the unit base Sce Fig 31 Slide the burner rack out of the unit Sco Fig 31 and 34 9 To reinstall reverse the procedure outlined above 4 4 5 6 Remove ignitor and sensor wires at the ignitor module 7 8 INDUCED DRAFT MOTOR MOUNT TIP g 3 4 LE ig SWITCH ENT HOOD FLUE yi AT HORO PO CTO BLOWER BURNER MOUNTING LOCATIOM BOX HOUSING RACK SCREW C89022 Fig 31 Blower Housing and Flue Collector Box ACCESS PANE C89091 Fig 32 Unit Access Panel L CONDENSER COIL EVAPORATOR COIL AND CONDENSATE DRAIN PAN Inspect the cond
4. We3BL BLK FIELD c 5 Ws SK 2 1 YEL OFM SUPPLY oe CAP 2 eee RE W858 YEL AR F2 1 WS YEL Sr D BRN POWER ga WS BLK te EQUI GND WA va DOM mum 980 ONLY s TS w56 BLU g SEE NOTE 4 3 W61 YEL y YEL REG W63 YEU YEL IFM W64 YEL CAP 1 WIS YEL gr BRN PRIMARY COOLING FAN LOGIC W14 BLK sev e vio one a E YEL IDM ENERGIZED DE ENERGIZED TRAN g ic niis BRN HEATING FAN LOGIS QT GRN YEL I SECONZARY Ds T330 eu AW c W46 BRN ENERGIZED DE ENERGIZED e W13 SLK Li pa 2ay SPLICE BOX h W39 RED u Iac a W1G WHIT GD aa W20 GRN E 1 r 5ANP N 1 LHR T W21 RED l BU c8 RS r EH BU Dor Y r3 wg T LA To Vio Troes Y a i og 1 Ue vu GR Y G H IH W35 GRA DEAS e To 1 EG W34 BRN wa vi FLAME SEN LTRAM bg H Wo O0 iare Er SEPT E 128 4 Oo o O HBN 2 2 oo CH Wd GRN VEL GRNYEL _ FIELD THERMOSTAT CHA 4 2 BRN M W46 BRN eX e Yea W32 BEN a s SOME W33 YEL Wal BRN COMMON Wot BRN LEGEND AHA ee eat NEC Na3oralElectrca 1 icipeter sodes UNIT COMPONENT ARRANGEVENT BR Blowe Relay OPM Oudoor Fan voter EE FAN OFM c Cortactor QT Quad uple Terrina SECTION CAP Capacitor RS Rollout Switch En COMP Compresso Moor SEN Sensor CR
5. 237 0 30 0 ao 80 TC 20 90 SUCTION LINE TEMPERATURE 2r 16 2 Zt az 10 SSCTION L HE TEMPERATURE 2 required continue with Steps 4 and 5 4 To remove blower remove 2 sctscrows 29046 CO0052 Fig 28 Cooling Charging Chart PYZP042 Units 038 8CHZ CHARGING CHAT Ean 889 105 8 115 40 4 106 di a 5 39 gijo Ge 76 26 Y ul i AS i gm aeg i age n a 4 o9 8 345 a zro 40 zo 3c ac nn 80 9c TEMPERATURE F 4 1C 18 21 2f a2 SUSTION LINE TEMPERATURE C Fia 27 Cooling Charging Chart PYZPO036 Units C00051 248 BOHZ CHARG NG CHART 103 e E 2 e E oO XI O7ASCA S A 5 PRESS t b SUCTION LINE SUCTION LIN E 8 2 6 42 207 os e 3c ac 50 ec 70 0 e SUCTION LINE TEMPERAT E bin 4 13 18 21 27 32 SUCTION LINE TER PERATURE C COQ053 Fig 28 Cooling Charging Chart PYZP048
6. 31 CONDENSER COIL EVAPORATOR COIL AND CONDENSATE DRAIN PAN nesciret pen te Naine KEAVAT EE an oe prensa eoa one te TERAN Kina dune vespa ke rAr E Oaa ede Qa rua EOE uoa cuni Ear apa tea 33 CONDENSER FAN BLECTRICAL CONTROLS AND WIRING neas tette Maia Fea dede lus deus o IR ON ATL fala Ee Pos EU PRO RIP Ree ER eo 34 REFRIGERANT CIRCUIT 5 5o oo E vt e eie diee ie LO eee NAPOLI eH C RPALeR EOS Ea EAA AO OEE TAENSA 35 GAS INPUT EVAPORATOR AIRFLOW 5 aiosneetopsiceetsen ere atop ievoekeqee t tee et eee ety eh xv PR ere QE pee eve rec Does apn e EV PUERUM cdssasts us code re voasba biases soot ERE Sdn 35 METERING DEVICE ACUTROL DEV IGE 2 112 132 aitctna trasera aca consichassaucdasbisessacasvbascasesedensedepsesosabeuadbasddesnnongatensosedrsvasedicete Fea rada 35 LIQUID EINE STRAINER rentre o eo a d oa ode Ha ra tete HE sso ssuabuouasinsesaiesdvasvadvess eR EEEE exo eee CHEM sgusus HE CETTE D RE e ER E Ree BL EE AE eL eM pe voa 35 TROUBEBSHOO PNG ioa deci i ier eye e HD EH ere HE ON DIERUM TELESE Ei CEE CEE cade HERE GRE osha KOH EE Veo I Heg eua a IV RI De aSa R Mn EREINEN 35 START UP CHECK DIST deed teinte eed cec td aeree reri uice dubie ep pode e ee E eye Padre sed eser oio pieno eager rte ra aede 35 NOTE TO INSTALLER Before the installation READ THESE INSTRUCTIONS CAREFULLY AND COMPLETELY Also make sure the User s Manual and Replacement Guide are left with the unit after installation The furna
7. DRAIN OUTLET 4 19 0 0 751 W P T C168 ONPRESSOR BLOWER GAS SECTION FUE Hoge AKT 12 1 0 501 N P T x 22 0 0 87 DP 329 0 amp ELECTRICAL ACCESS PANEL ps GAS ENTRY T bless 2 081 0 201 LA A 142 4 1226 3 1123 1 99 48 281 5 611 44 221 LEFT SIDE VIEW FRONT VIEW RIGHT SIDE VIEW UNIT ELECTRICAL CHARACTERISTICS UNIT WEIGHT g C00056 CENTER OF GRAVITY IN MM X Y Z UNIT HEIGHT IN MM A PY1P048090H415 30 208 230 1 60 208 230 3 60 460 3 60 38 98 990 2 22 558 5 16 408 4 17 432 0 PY1P060090H15 130 208 230 1 60 208 230 3 60 460 3 60 38 98 990 2 22 558 5 16 408 4 17 432 0 PY2P042060 090 208 230 1 60 208 230 3 60 460 3 60 38 98 990 2 23 0 584 2 16 3 412 8 16 6 421 6 PY2P048090 115 130 208 230 1 60 208 230 3 60 460 3 60 38 98 990 2 21 5 546 1 16 6 422 1 18 0 457 2 PY2P060090H15 130 208 230 1 60 208 230 3 60 460 3 60 42 98 1091 1 23 5 596 9 16 3 412 8 17 6 447 0 Fig 3 PY1P048 060 and PY2P042 060 Unit Dimensions base Screw NOTE A Gasketing Gasketing outer flange outer flange Wood nailer Wood nailer Flashing field Flashing field supplied supplied Roofcurb Roofcurb insulation field supplied insulation f
8. NOTES 1 There is a 3 8ec pause between error code displays 2 If more than one amor code exists all applicable error codes will be displayed in numerical sequence 3 This chart is oni the wiring diagram located inside the bumer access panel H AUXILIARY LIMIT SWITCH ROLLOUT The function of the switch is to close the main gas valve in the event of flame rollout The switch is located above the main burners When the temperature at the auxiliary switch reaches the maximum allowable temperature the R control circuit trips closing the gas valve and stopping gas flow to the burners The indoor evaporator fan motor IFM and induced draft motor continue to run until switch is resect The IGC LED will display FAULT CODE 7 PROCEDURE 3 START UP COOLING AND MAKE ADJUSTMENTS A CAUTION Complete the required procedures given in the Pre Start Lip section before starting the unit Do not jumper any safety devices when operating the unit Co not operate the compressor when the outdoor temperature is below 40 F unless accessory low ambient kit is installed Do not rapid cycle the compressor Allow 5 minutes between on cycles to prevent compressor damage A CHECKING COOLING CONTROL OPERATION Start and check the unit for proper cooling control operation as follows 1 Place room thermostat SYSTEM switch in OFF position Observe that blower motor starts when FAN switch is placed in ON position and shuts down when FAN switch
9. EXAMPLE Supply voltage is 460 3 60 AB 452v LEGEND A BG BC 464 v FLA Full Load Amps C US AC 455v LRA Locked Rotor Amps 452 464 455 MCA Minimum Circuit Arps Average Voltage 3 MOCP Maximum Overcurrent Protection RLA Rated Load Amps 1371 CKT BKR Circuit Breaker 3 NOTES 457 1 In compliance with NEC National Electrical Code requirements Determine maximum deviation from average voltage for muitimotor and combination load equipment refer to NEC AB 457 452 5v Articles 430 and 440 the overcurrent protective device for the BC 464 457 7v unit shall be Power Supply fuse Canadian units may be AC 457 455 2v fuse or circuit breaker Maximum deviation is 7 wv 2 Minimum wire size is based on 60 C copper wire if other than i 60 C wire is used or if length exceeds wire length in table Determine percent of voltage imbalance determine size from NEC Vol Imbal 100 7 3 Unbalanced 3 Phase Supply Voltage Voltage Imbalance 100 x 457 Never operate a motor where a phase imbalance in supply volt age is greater than 2 Use the following formula to determine 1 5396 the percentage of voltage imbalance This amount of phase imbalance is satisfactory as it is below the 96 Voltage imbalance maximum allowable 2 100x max voltage deviation from average voltage average voltage IMPORTANT If the supply voltage phase imbalance is more than 2 contact your local electric utility company immediate
10. A superheat charging chart is attached to the outside of the service access panel The chart includes the required suction line temperature at given suction linc pressures and outdoor ambient temperatures An accurate suporheat thermocouple or thermistor type thermometer a sling psychrometer and a gauge manifold are required when using the superhcat charging method for evaluating the unit charge Do not use mercury or small dial 1ype thermometers because they are not adequate for this type of measurement AX CAUTION When evaluating the refrigerant charge an indicated adjustment to the specified factory charge must always be very minimal If a substantial adjustment is indicated an abnormal condition exists somewhere in the cooling system such as insufficient airflow across either coil or both coils Proceed as follows 1 Remove caps from low and high pressure service fittings 2 Using hoses with valve core depressors attach low and high pressure gauge hoses to low and high pressure service fittings respectively 34 3 Start unit in Cooling mode and let unit run until system pressures stabilize 4 Measure and record the following a Outdoor ambicnt air temperature F db b Evaporator inlet air temperature OF wh c Suction tube temperature CF at low side service fitting d Suction low side pressure psig 5 Using Cooling Charging Charts comparo outdoor air temperature F db with the suction line pre
11. Combustion Relay BY Switch COMPRESSOR INDOGR FAN CONTROL BOX cE GertrFucal Switch TRAN Transorns SECTION SECTION V Eme 21 EQUI Equipment FS Flame Senser LM Fisld Splise Fuse GND Grounc CO Terr nal Marked mm FROM SOR TE GV Gas Vave TO MER F E GVR Gas Veve Relay OQ Tenrnal irma kec Q HS Hal Effect Senso ES c HV High Voltage zio GAP 2 TRAN Trenstormer uis er 3 i Igniter 9 Splice Marked av EM Inducec Drait Motor Factory Wiring COMP SPL FG Indoor Fan Cortactor Field Control Wiring FM Indoor Fan Motor i d us GC Integrated Ges Uni Field Power Wiring Cortrol er Accessory or s Li Line Optone Wirirg C 12 L8 LimtSwiton Te indicate Common s S1 LimtSwitzh Fotenie Or v Not R 1 Fre VGV Main Gas Valve to Represer Wiring GAS SECTION NOTES 5 If any cf che origiral wres furnished are reslacec they must 2e DISCONNECT replaced with tyze 90 degree C wire or its equiva et PER NEZ See price pages for thermostat anc subbases ard correct BL wire tom IFM For RED wire fon IGC terminal BRA and Use 75 cegree C copper conductors fer fislc irstallaton Fer higk szsed IFM discornest RED wire fron IGC termiral BV medium saved discornisct connect BLU wire rom IFM CO00059 Fig 17 469 3 60 Wiring Diagram Units PY1P and PYZP 21 Table 6 Heating
12. GAS SECTION LS1 Limit Switch Hbri yd boa MGV Main Gas Valve to Represent Wiring NOTES 1 ff any of the original wires furnished are replaced they must be replaced with type 90 degree C wire or its equivalent 2 See price pages for thermostat and subbases 3 Use 75 degree C copper conductors for field installation 4 For high speed IFM disconnect RED wire from IGC terminal BM and connect BLK wire from IFM For medium speed disconnect RED wire from IGC terminat BM and connect BLU wire from IFM Fig 15 208 230 1 60 Wiring Diagram Units PY1P and PY2P eee Qn C W43 BLK BL FIELD 5 1 WS4 BLK 1 YEL OFM SUPPLY CAP 2 W55 VEL 13 1 We YE SrDI BRN eo OY POWER pea d a MES S WB BLK E EQuiP_SND DOMP KERRE W38 BLU SEE NOTE Way A W64 YEL ES WIS YEL SRIMARY E w14 8 K Qu xo 230V o i COOLING FAN LORIC T ue v10 M T Ts YEL IDM ENERGIZE
13. 30 40 50 60 70 80 g0 30 40 50 60 70 80 90 SUCTION LINE TEMPERATURE F SUCTION LINE TEMPERATURE CF 4 10 16 21 27 32 4 10 18 21 27 32 SUCTION LINE TEMPERATURE C SUCTION LINE TEMPERATURE C 0043 Fig 20 Cooling Charging Chart PY1P030 Units 21 Cooling Charging Chart PY1P036 Unit Fig c On aff units remove blower asscmbly from unit Remove serows securing Blow to blower partition and slide assembly out Be careful not to tear insulation in blower compartment d Ensure proper reassembly by marking blower wheel and motor in relation to blower housing before disassembly Loosen sctscrow s that secures wheel to motor shaft Remove screws that secure motor mount brackets to housing and slide motor and motor mount out of housing 2 Remove and clean blower wheel as follows a Ensure proper reassembly by marking wheel orientation b Lift wheel from housing When handling and or cleaning blower wheel be sure not to disturb balance weights clips on blower wheel vanes c Remove caked on dirt from wheel and housing with a brush Remove lint and or dirt accumulations from wheel and housing with vacuum cloancr using soft brush attachment Remove grease and oil with mild solvent d Reassemble wheel into housing Reassemblo motor into housing Be sure sctserows arc tightened on motor shaft flats and not on round part of shaf f Reinstall unit access panel 329
14. Turn off gas supply to unit 2 Remove pipe plug on manifold Scc Fig 13 and connect manometer Turn on gas supply to unit 3 Record number of scconds for gas meter test dial to make onc revolution 4 Divide number of seconds in Stop 3 into 3600 number of seconds in one hour 5 Multiply result of Step 4 by the number of cu ft shown for onc revolution of test dial to obtain cu ft of gas flow per hour 6 Multiply result of Step 5 by Btu heating value of gas to obtain total measured input in Btuh Compare this value with heating input shown in Table 6 Consult the local gas supplicr if the heating value of gas is not known EXAMPLE Assume that the size of test dial is 1 cu ft onc revolution takes 32 sce and the heating value of the gas is 1050 Btu Proceed as follows 1 32 sce to complete one revolution 2 3600 32 112 5 3 112 5 x 1 112 5 f of gas flow hr 4 112 5 x 1050 118 125 Btuh input If the desired gas input is 115 000 Btuh only a minor change in the manifold pressure is required Observe manifold pressure and proceed as follows to adjust gas input 22 Table 7 4Air Delivery Cfm at Indicated Temperature Rise and Rated Heating Input HEATING TEMPERATURE RISE F INPUT BTUH 40 000 1500 750 60 000 2250 1286 1125 818 692 0 000 1928 1688 1227 1125 1038 115 000 2464 2186 1568 1438 1327 1232 130 000 2786 2438 1773 1825 1500 NOTE Dashed areas do nat fall within the approved temp
15. 2 in outside the unit casing A WARNING Never use a match or other open flame when checking for gas leaks Never purge gas line into combustion chamber Failure to follow this warning could result in an explosion causing serious injury or death 8 Check for gas leaks at the field installed and factory installed gas lines after all piping connections have been completed Use soap and water solution or method specified by local codes and or regulations PROCEDURE 9 INSTALL DUCT CONNECTIONS The unit has duct flanges on the supply and return air openings on the side and bottom of the unit For downshot applications the ductwork connects to the roof curb See Fig 2 and 3 for connections sizes and locations A CONFIGURING UNITS FOR DOWNFLOW VERTICAL DISCHARGE A WARNING Before performing service or maintenance operations on the system turn off main power to unit Electrical shock could cause serious injury or death 1 Open all electrical disconnects before starting any service work 2 Remove return duct cover located on duct panel by breaking connecting tabs with screwdriver and a hammer See Fig 10A amp 10B l E SUPPLY RETURN DUCT DUCT OPENING OPENING C99011 Fig 10A Supply and Return Duct Opening 3 To remove supply duct cover break front and right side connecting tabs with a screwdriver and a hammer Push louver down to break rear and left
16. 9 1 9 1 9 1 10 9 10 9 9 1 9 1 CONDENSER FAN Nominal Cfm Diameter in Motor Hp Rpm EVAPORATOR COIL Rows Fins in Face Area sq ft CHOR KINO cone 600 800 800 1000 1000 1200 1200 4400 1400 10 x 10 10 x 10 10 x 10 10 x 10 10 x 10 11 x 10 11 x 10 11 x 10 11x 10 Size in Motor HP Rpm 1 4 875 1 4 1075 1 4 1075 1 4 1075 1 4 1075 1 2 1075 1 2 1075 3 4 1075 3 4 1075 FURNACE SECTION Burner Orifice No Qty Drill Size Natural Gas Burner Orifice No Qty Drill Size Propane Gas RETURN AIR FILTERS in f Throwaway Based on altitude of 0 to 2000 ft t Required filter sizes shown are based on the larger of the ARI Air Conditioning and Refrigeration Institute rated cooling airflow or the heating airflow velocity of 300 ft minute for throwaway type or 450 ft minute for high capacity type Air filter pressure drop for non standard filters must not exceed 0 08 in wg 2 6 3 5 3 5 3 65 3 65 44 44 5 7 5 7 2000 2400 2400 2400 2400 3000 3000 3000 3000 22 22 22 22 22 22 22 22 22 1 8 825 1 8 825 1 8 825 1 8 825 1 8 825 1100 1100 1100 1100 2 15 2 15 2 15 2 15 2 15 3 15 3 15 4 15 4 15 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 3 1 20x20 20x20 20 X 20 20 x 20 20X20 20X24 20X24 20 x 24 20 x 24 Install the flue hood as follows 1 This installation must conform with local building codes and
17. Inputs GAS SUPPLY PRESSURE MANIFOLD HEATING NUMBER IN WG PRE RE INPUT OF ve iBTUHY ORIFICES Natural Propanet IN WG Natural Propanet 40 000 i 3 5 3 5 60 000 3 5 3 5 80 000 3 5 3 4 115 000 3 5 3 7 130 000 3 5 3 5 When a unit is converted to propane different size orifices must be used Ses separate natura l te propane conversion kit instructions T Based on akitudes from sea level to 2000 ft above sea level For altitudes above 2000 ft reduce input rating 4 percent for each additional 1000 fl above sea level In arada from 2000 ft above sea leval to 4500 ft above sea leval derate the unit 10 percent 2 Set the heating temperature control of the thermostat above room temperature 3 The induced draft motor will start 4 After a call for heating the main burner should light within 5 scc If the burners do not light there is a 22 scc delay before another 5 sco try Ifthe burners still do not light this sequence is repeated If the burners do not light within 15 minutes from the initial call for heat there is a lockout To reset the control break the 24 v power to W 5 The evaporator fan will turn on 45 scc after the flame has beon established The evaporator fan will turn off 45 scc after the thermostat has been satisficd B CHECK GAS INPUT Check gas input and manifold pressure after unit start up Sco Table 6 If adjustment is required procecd as follows The rated g
18. Insulated panels 1 in thick fiberglass 1 Ib density 8 Dimensions are in inches 9 When unit mounting screw is used see Note A a retainer bracket must be used as well This bracket must also be used when required by code for hurricane or seismic conditions This bracket is available through Micrometi Fig 4 Roof Curb Dimensions PROCEDURE 4 PROVIDE CLEARANCES The required minimum operating and service clearances are shown in Fig 2 and 3 Adequate combustion ventilation and condenser air must be provided in accordance with section 5 3 Air for Combustion and Ventilation of the National Fuel Gas Code ANSI American National Standards Institute Z223 1 or applicable provisions of local building code In Canada follow sections 7 2 7 3 or 7 4 or Can CGA Canadian Gas Association B149 Installation Codes or applicable provisions of local building code Z CAUTION Do not restrict condenser airflow An air restriction at either the outdoor air inlet or the fan discharge can be detrimental to compressor life C00070 CORNER TOTAL WEIGHT E fOPTION SUPPLY Il Il I n n I I I I In I I I n I I I I I i EVAP COND COIL COIL C99014 Fig 6 Slab Mounting Details 7 HANDHOLD d C99067 Fig 7A Threading Bolt for Rigging The condenser fan pulls air through the condenser coil and discharges it through the top cover Be sure that the fan discharge does not recircu
19. PYTP 02 Printed in U S A 2002 Payne Heating amp Cooling 11 02 Page 40 Catalog No 53PY 1P15
20. Tum off gas to unit Remove manometer from pressure tap Replace pipe plug on gas valve then tum on gas to unit Check for leaks D CHECK BURNER FLAME With burner access panel removed observe the unit heating operation Watch the burner flames to sco if they arc light blue and soft in appearance and that the flames sro approximately the same for cach burner Propane will have bluc flame with yellow tips Sco Fig 14 Refer to the Maintenance section for information on burner removal E AIRFLOW AND TEMPERATURE RISE The heating section for cach size unit is designed and approved for heating operation within the temperature rise range stamped on the unit rating plate Table 7 shows the approved temperature risc range for cach heating input and the air delivery cfm at various temperature rises The heating operation airflow must produce a temperature rise that falls within the approved range Refer to Indoor Airflow and Airflow Adjustments section to adjust heating airflow when required F HEATING SEQUENCE OF OPERATION Sec Fig 15 17 and unit wiring label On a call for heating terminal W of the thermostat is energized starting the induced draft motor When the hall cffoct sensor on the induccd draft motor senses that it has reached the required speed the burner sequence begins This function is performed by the integrated gas control IGC The evaporator fan motor is enorgizod 45 scc after flame is established When the thermostat is satisfi
21. W21 RED y 5 S HEAT h r BLU Doe ele Y oc vio E TOI vi COO m Rn p5 vio Oren viot D i A ai KES MGV Y al EX HEN wm H W35 GRA 17 4 2 fac a SI W34 BRN AUTO 3 Y or FLAME SEN FAN G TRAN i n I YEL O om LL ed c hg i atl e ey o o O BRN ON W41 GRIN YEL GRNYEL 3 FIELD THERMOSTAT 4 SE ze a d W32 BRN M W46 BRN e e Xen W32 BRN W33 YEL W30 BRN COMMON W30 BRN DISCONNECT UNIT COMPONENT ARRANGEMENT PER NEG OUTDOOR FAN GHi LEGEND SECTION AHA Adjustable Heat NEC National Electrical EQUIP Anticipator Code SND aR Pied Relay DM Outdoor Fari Motor Contactor Quadruple Terminal COM EN SOR INDOOR FAN Fro CAP Capacitor RS Rollout Switch COMP Compressor Motor SEN Sensor CR Combustion Relay SW Switch EA Centrifugal Switch TRAN Transformer Equipment CAPS Ile ES Flamo Sensor X Field Splice Fuse T m GND Ground C Terminal Marked GV Gas Valve vis GVR Gas Valve Relay Q Terminal Unmarked HC F HS Hall Effect Sensor HV High Voltage Splice comp TRAN Transformer i ignitor X9 Splice Marked ey Pire Draft Motor Factory Wiring indoor Fan Contactor ida P iri IFM indoor Fan Motor Fleld Control Wiring c iGC integrated Gas Unit Field Power Wiring 8 Controller Accessory or R s Li Line Optional Wiring LS Limit Switch GR i LARGE CHASSIS LOC
22. connections of the blower motor Unit PY1P two or throc specd motors except size 030 arc factory wired for low speod operation Unit PY1P030 is factory wired for medium specd All PY2P units are factory wired for low specd and may need to bo wired for medium or high specd in the field FOR 208 230V For color coding on the 208 230V motor leads sce Table 9 Table Color Coding for 208 230 V Motor Leads black high speed black high speed blue medium speed red low speed red low spocd To change the speed of the blower motor BM remove the fan motor speed leg lead from the blower relay BR This wire is attached to terminal BM of the integrated gas control IGC board for single and 3 phase units To change the speed remove and replace with lead for desired blower motor speod Insulate the removed lead to avoid contact with chassis parts FOR 460 V GE MOTORS For color coding on tho 460 v GE motor leads sec Table 10 Table 1 Color Coding for 460 V GE Motor Leads SPEED 2 SPEED black high speed black high speed violet jumper blue jumper orange medium speed red low speed red low speed To change the speed of the blower motor BM remove fan motor speed lead from the blower relay BR and replace with the lead for the desired blower motor specd The motor specd lead is attached to terminal BM of the integrated gas control TGC board For low and medium speeds black must be con
23. d Pressure test all gas piping in accordance with local and national plumbing and gas codes before connecting piping to unit EE Table 1 Physical Data Unit PY1P Continued UNIT SIZE PY1P EE ET EET penne osons EXIES NOMINAL CAPACITY ton OPERATING WEIGHT ib 450 COMPRESSORS Reciprocating Quantity 1 REFRIGERANT R 22 Quantity ib REFRIGERANT METERING DEVICE Orifice ID in CONDENSER COIL Rows Fins in Face Area sq ft CONDENSER FAN Nominal Cfm Diameter in Motor Hp Rpm 1100 4 1100 4 1100 1100 1100 1100 EVAPORATOR COIL Rows Fins in Face Area sq ft EVAPORATOR BLOWER Nominal Airflow Cfm Size in Motor Hp Rpm FURNACE SECTION Burner Orifice No Oty Drili Size Natural Gas Burner Orifice No Qty Drill Size Propane Gas RETURN AIR FILTERS in t Throwaway Based on altitude of 0 to 2000 ft t Required filter sizes shown are based on the larger of the ARI Air Conditioning and Refrigeration institute rated cooling airflow or the heating airflow velocity of 300 f minute for throwaway type or 450 ft minute for high capacity type Air filter pressure drop for non standard filters must not exceed 0 08 in wg 3 15 3 15 3 15 4 15 4 15 4 15 4 7 4 7 47 4 7 4 7 4 7 1600 1600 1600 2000 2000 2000 11 X 10 11 X 10 41 X 10 11 X 10 11 X 10 11 X 10 3 4 1075 3 4 1075 3 4 1075 1 0 1075 1 0 1075 1 0 1075 Tab
24. is placed in AUTO position 2 Place SYSTEM switch in COOL position and FAN switch in AUTO position Set cooling control below room temperature Observe that compressor condenser fan and evaporator blower motors start Observe that cooling cycle shuts down when control setting is satisfied The evaporator fan will continue to run for 30 scc 3 When using an auto changesver room thermostat place both SYSTEM and FAN switches in AUTO positions Observe that unit operates in Heating mode when temperature control is sct to call for heating above room temperature and operates in Cooling mode when temperature control is sct to call for cooling below room temperature IMPORTANT Thrcc phasc scroll compressor units PYTPQAS and PY2PQ30 060 src dircction oriented Those units must be checked to ensure proper compressor 3 phasc power load orientation If not corrected within 5 minutes the internal protector shuts off the compressor The 3 phase power leads to the unit must be reversed to correct rotation When turning backwards scroll compressors emit elevated noise levels and the difference between compressor suction and discharge pressures may be dramatically lower than normal B CHECKING AND ADJUSTING REFRIGERANT CHARGE The refrigerant system is fully charged with R 22 refrigerant tested and factory scalod NOTE Adjustment of the refrigerant charge is not required unless the unit is suspected of not having the proper R 22 charac
25. moving operations The unit must be level within 1 4 for proper condensate drainage therefore the ground level pad or accessory roof curb must be level before setting the unit in place When a field fabricated support is used be sure that the support is level and properly supports the unit Lifting point should be directly over the center of gravity for the unit PROCEDURE 6 CONNECT CONDENSATE DRAIN NOTE When installing condensate drain connection be sure to comply with local codes and restrictions Models PY1P and PY2P dispose of condensate water through a 3 4 in NPT fitting which exits through the compressor access panel See Fig 2 and 3 for location Condensate water can be drained directly onto the roof in rooftop installations where permitted or onto a gravel apron in ground level installations Install a field supplied condensate trap at end of condensate connection to ensure proper drainage Make sure that the outlet of the trap is at least 1 in lower than the drain pan condensate connection to prevent the pan from overflowing See Fig 8 Prime the trap with water When using a gravel apron make sure it slopes away from the unit If the installation requires draining the condensate water away from the unit install a 2 in trap at the condensate connection to ensure proper drainage See Fig 8 Make sure that the outlet of the trap is at least 1 in lower than the drainpan condensate connection This prevents the pan from overflo
26. operating cconomy and continuing cfliciency clean accumulated dirt and grease from the blower wheel and motor annually A WARNING Before cleaning the blower motor and wheel disconnect gas supply Then turn off and tag electrical power to the unit Failure to adhere to this warning could cause serious injury or death CLEANING THE BLOWER MOTOR AND WHEEL 1 Remove and disassemble blower assembly as follows a Remove unit access pancl b Disconnect motor lead from blower relay BM Disconnect yellow lead from terminal L2 of the contactor
27. with the National Fuel Gas Code NFGC ANSI Z223 1 in Canada CAN CGA B149 1 and B149 2 or NFPA National Fire Protection Association latest revision Refer to Provincial and local plumbing or wastewater codes and other applicable local codes 2 Remove flue hood from shipping location inside the blower compartment Place vent cap assembly over flue panel Orient screw holes in vent cap with holes in the flue panel 3 Secure flue hood to flue panel by inserting a single screw on the right side and the left side of the hood PROCEDURE 8 amp INSTALL GAS PIPING The gas supply pipe enters the unit through the access hole provided The gas connection to the unit is made to the 1 2 in FPT gas inlet on the manual shutoff or gas valve Install a gas supply line that runs to the heating section Refer to Table 3 and the NFGC for gas pipe sizing Do not use cast iron pipe lt is recommended that a black iron pipe is used Check the local utility for recommendations concerning existing lines Size gas supply piping for 0 5 in wg maximum pressure drop Never use pipe smaller than the 1 2 in FPT gas inlet on the unit gas valve For natural gas applications the gas pressure at unit gas connection must not be less than 4 0 in wg or greater than 13 in wg while the unit is operating For propane applications the gas pressure must not be less than 7 0 in wg or greater than 13 in wg at the unit connection An 1 8 in NPT plugged tapping accessib
28. with unit and install grommet in the knockout opening Provide a drip loop before running wire through panel Run the low voltage leads from the thermostat through the inlet hole and into unit low voltage splice box Locate five 18 gage wires leaving control box These low voltage connection leads can be identified by the colors red green yellow brown and white See Fig 11 Ensure the leads are long enough to be routed into the low voltage splice box located below right side of control box Route leads through hole in bottom of control box and make low voltage connections See Fig 11 Secure all cut wires so that they do not interfere with operation of unit D HEAT ANTICIPATOR SETTING The room thermostat heat anticipator must be properly adjusted to ensure proper heating performance Set the heat anticipator using an ammeter between the W and R terminals to determine the exact required setting NOTE For thermostat selection purposes use 0 18 amp for the approximate required setting Failure to make a proper heat anticipator adjustment will result in improper operation discomfort to the occupants of the conditioned space and inefficient energy utilization however the required setting may be changed slightly to provide a greater degree of comfort for a particular installation E TRANSFORMER PROTECTION The transformer is of the energy limiting type It is set to withstand a 30 sec overload or shorted secondary condition d S
29. 075 1 2 4075 4 2 4075 3 4 1075 3 4 1075 20 X 20 20 X 20 NOTE Pressure test the gas supply system after the gas supply piping is connected to the gas valve The supply piping must be disconnected from the gas valve during the testing of the piping systems when test pressure is in excess of 0 5 psig Pressure test the gas supply piping system at pressures equal to or less than 0 5 psig The unit heating section must be isolated from the gas piping system by closing the external main manual shutoff valve and slightly opening the ground joint union iioc Table 2 Physical Data Unit PY2P Continued UNIT SIZE PY2P mt S 30 S 30 NOMINAL CAPACITY ton OPERATING WEIGHT ib COMPRESSORS Scroll Quantity 4 REFRIGERANT R 22 83 84 Quantity Ib 7 REFRIGERANT METERING DEVICE Acutrol Device Orifice ID in CONDENSER COIL Rows Fins in Face Area sq ft CONDENSER FAN Nominal Cfm Di t i x 1 1 4 s Meo rH ens 4 1100 4 1100 1100 4 1100 1 4 1100 amp 1100 EVAPORATOR COIL 4 15 4 15 4 15 4 15 4 15 4 15 Rows Fins in Face Area sq ft 47 4 7 4 7 47 47 4 7 NOUIS APRORACRS 1600 1600 1600 1750 1750 1750 11 X 10 11 X 10 11 X40 11 X 10 11 X 10 11 X40 Size in ae e en 3 4 1075 3 4 1075 3 4 1075 1 0 1075 1 0 1075 1 0 1075 FURNACE SECTION Burner Orifice No Qty Drill Size Natural Gas Burner Orifice No Qty Drill Size Propane
30. 3 QT 0 inito 9 Splice Marked DM rduced Dref Mozor Facnry Wiring CONF SPLICE BOX A eee Field Cortrol Wiring E irdeo Fen Mozor 4 a HS IGO irtegrated Gas Unit Field Power Wiring Contralle Axessory or ay H Hie dh O 3on al Wiring c 3 Limit Swi To indicate Commor 5g ins LS Limit gwitch Potent al Only Not R 1 rs e MGV Main Gas Veve to Reoresent Wiring GAS SECTION NOTES 1 fany of the orginal wires furnished are rep aced Fey must be DISCONNECT replaced with type 98 cegree C wire or Es equivalers PER NEC 2 Ses prize pages for thenraostat and sucbases amp Ues 5 degree C copper conductors for feld insta legen 4 For high speed IFV c sconrect RED wire from IGC terminal BRA anc correct BLK wire from FM For meciuri speed c sconrect RED wire frar ISC termiral BY and connect SLU wire from I7V Fig 16 208 230 3 60 Wiring Diagram Units PY1P and PYZP 20
31. 3 5 342 9 13 0 330 2 PY2P024040 060 208 230 1 60 37 02 940 3 22 0 558 8 14 5 368 3 16 0 406 4 PY2P030040 060 208 230 1 60 208 230 3 60 39 02 991 1 22 0 558 8 15 3 3874 17 6 447 0 PY2P036060 090 208 230 1 60 208 230 3 60 460 3 60 35 02 889 5 22 0 558 8 15 8 3874 16 5 419 1 Fig 2 PY1P018 042 and PY2P024 036 Unit Dimensions Ducts passing through an unconditioned space must be insulated and covered with a vapor barrier If a plenum return is used on a vertical unit the return should be ducted through the roof deck to comply with applicable fire codes A minimum clearance is not required around ductwork Cabinet return air static shall not exceed 25 in wg modom 355 8 3211 359 q 14 011 13 491 114 011 n rA gf RETURN SUPPLY in y 7 rT _ tt p OPTIONAL optional Hil 406 6 RETURN SUPPLY 406 6 16 01 AIR AIR 16 011 li OPENING P OPENING Nw s x aT CG il 10384 a SUPPLY RETURN CONDSROIE oa z 5n DUCT DUCT 15 83 OPENING OPENING 1 X EVAP COIL E p 113 8 z5 6 83 ee 4 631 COND COIL H EET yaa T en sin TOP VIEW REAR VIEW REQUIRED CLEARANCE TO COMBUSTIBLE MATL REQUIRED CLEARANCE FOR OPERATION AND
32. 4 030 20X20 1 005 o07 008 0 10 0 12 043 004 0 5 1 1 1 1 1 1 1 1 036 20x24X1 609 040 0541 043 934 035 036 1 1 1 1 1 1 042 048 060 24X30X1 0907 008 009 0 10 011 0 12 0 13 0 14 0 15 0 16 0 17 0 18 1 Inspect air filter s each month Clean or replace when necessary Certain geographical locations may require more frequent inspections 2 Inspect indoor coil outdoor coil drain pan and condensate drain each cooling season for cleanliness Clean at least once per heating cooling season or more often if needed 3 Inspect blower motor and wheel for cleanliness at the beginning of each heating and cooling season Clean when necessary For first heating and cooling season inspect blower wheel bi monthly to determine proper cleaning frequency 4 Check electrical connections for tightness and controls for proper operation each heating and cooling season Service when necessary 5 Ensure wires are not contacting refrigerant tubes or sharp sheet metal edges eR oy poe Table 13 Dry Coil Air Delivery Horizontal and Downflow Discharge Unit P 2P024 060 Deduct 10 percent for 208 Volts Extomal Static Pressure in wg 0 3 0 4 0 5 278 276 691 619 375 370 968 994 322 855 432 1202 1111 470 430 415 1463 1273 1188 487 471 1348 1255 10
33. 42 G35 G26 602 1412 1325 1120 1003 593 574 518 485 1626 1478 1421 1295 1218 728 695 3 G25 591 1731 1672 1541 1456 1193 790 766 713 1898 1602 1387 517 491 1372 1312 1242 850 G23 596 1577 1508 1440 amp 29 amp 00 775 1797 1708 1815 813 2 652 G26 1955 1840 1646 1566 aga 822 745 714 2233 2038 1814 1727 9848 845 812 2224 1915 1831 Air delivery values are without air filter and ara for dry coil See Table 15 PY2P Wet Coil Pressure Drop table NOTE Deduct field susplied air filter pressure drop and wet coil pressure drop to obtain external static pressure available for ducting 6 Check and inspect heating section before cach heating season Clean and adjust when necessary 7 Cheek fluc hood and remove any obstructions if necessary E AIR FILTER A CAUTION Never operate the unit without a suitable air filter in the retum air duct system Always replace the filter with the same dimensional size and type as originally installed See Tables 1 and 2 for recommended filter sizes Inspect air filter s at least once cach month and replace throwaway type or clean clesnable typc at least twice during cach heating and cooling season or whenever the filter s becomes clogged with dust and or lint F EVAPORATOR BLOWER AND MOTOR NOTE All motors arc permanently lubricated Do not attempt to lubricate these motors For longer life
34. D DE ENERGIZED TRANI 38 CAP ae HEATING FAN LORIG j SECONDARY S QT pennyt Q 45 T THD ie aN W46 BRN WR ow BR ENERGIZED BE ENERGIZED OR RS W 3RBLX fuk 24V SPLICE BOX BR oe We RED A CIE fet m WISWIHT G8 SAL wen orn O wip Dur HAHET W21 RED d i ROH BLU i r BLU Does Y 509 via E BRM bets m w Oor MOY A X 4 f ee GN E W35 CRA Ad mn SEE j 1H 35 1 E 1 LOGIS I N T 325 W34 BRN a1 y 4 e FLANESEN E E ree m 124 4 o o O BWN 2 x 200 WH ORN NEL RN YEL _ F ELE THERMOS AT E d mE 22 1932 BRN CO W48 BRN GY c Yen W32 BRN HS GROUNDED oF TRY SPENDO W33 YEL W30 BRN COMMON W30 BRN LEGEND AHA Adjustable Heat NEG Naf one Electrical 1 nisisator sote UNIT COMPONENT ARRANGEMENT BR Bower Relay OFM Gutdeo Faa Moor OUTDOOR FAN OFM c Contacto QT Quedrup e Terniral SECTION GAP Capacitor RS Rollout Switch EQUIP COMP Conmp essor Motor SEN Serser OND CR Combustion Reay SW Switch GOMPRESSOR INDOOR FAN Ti CONTROL BOX Eon eee Swick TRAN Transtormer SECTION SECTION SAN FS Fides Senso LY Field Splice Fu Fuse GRD Gourd CO Terniral Marked F FROM COMP 4 ee 3V Ges Valve X GAP c 3 gm GVR Gee Valve Relay O Termiral Unrrarked O lL HS Hall EFect Serser a cl c E HV HghVotage Q o GaP 2 FM leg TRAN Tarsorns X k O
35. EAKS 2 2 18 START UP HEATING AND MAKE ADJUSTMENTS 18 CHECK HEATING CONTROL 18 CHECK GAS INPUT 524 ADJUST GAS INPUT 22 22 CHECK BURNER FLAME 22 4 3523 AIRFLOW AND TEMPERATURE RISE 223 HEATING SEQUENCE OF OPERATION 2423 LIMIT SWITCHES eese tnde i523 AUXILIARY LIMIT SWITCH ROLLOUT 224 START UP COOLING AND MAKE ADIUSTMENTS 2424 CHECKING COOLING CONTROE OPEBRATION 5utitteteai nib da p pae e EE Ree be D perdu era es ope peod MIS e RR Pe PARRA ERR tuae 24 CHECKING AND ADJUSTING REFRIGERANT CHARGE eese earita oreks tda etat teta teta tiat Aa raK Nana tota tasa saa tb aiana 24 INDOOR AIRFLOW AND AIRFLOW ADJUSTMENTS zs COOLING SEQUENCE OF OPERA FION 7 aco peetectaire EE t rre Peso rit eet epe nergies Bee APAK aa pao De spe e bob ve AREA Anea o Eiaeia latai uf earn Wie re cS AIR FILTER T EVAPORATOR BLOWER AND MOTOR 1 eH gaeei etre essa reper as sedet dose ee e ena Dea EEEE duces suvenetoscb EEEN eea NEE Ei ESENE fa eR PEE eee Don FLUE GAS PASSAGEWAYS bead COMBUSTION AIR BEOWER incerti eret reete Petre T DD Sasi Geld eee ELE en eti bce Qo De eee ete eoa a ra e ER ee wae elo PEU a Pd deb EIMEPIS WIP CH EC EET A A E TAE E A T E A E E E T BURNER JIGNIFION aaora eona RU Form IM PY1P 03 Cancels IM PY1P 02 Printed in U S A 11 02 Catalog No 53PY 1P15 MAIN BURNERS naeio E
36. ENTRY SID 36 00 914 0 EXCEPT FOR NEC REQUIREMENTS UNIT TOP 48 00 1219 2 SIDE OPPOSITE DUCTS 36 00 914 01 DUCT PANEL 12 00 304 8 MINIMUM DISTANCES IF UNIT IS PLACED LESS THAN 12 00 304 8 FROM WALL SYSTEM THEN SYSTEM PERFORMANCE MAYBE COMPROMISE Note Wire Grilles are a fieid installed option F 1193 9 47 001 j 798 5 _ 31 44 FIELD ENTRY SERVICE PORTS 23 0 0 91 28 6 1 13 DIA K Q 570 3 22 45 42 7 1 68 326 5 12 85 32 4 OMPRESSOR BLOWER GAS SECTION amp ELECTRICAL ACCESS PANEL POWER ENTRY 22 2 0 88 DIA HOLE CONTROL ENTRY FLUE HOOD 12 7 0 50 N P T GAS ENTRY 5 0 0 201 1226 3 48 281 FRONT VIEW 2 851 831 0 32 72 LEFT SIDE VIEW UNIT ELECTRICAL CHARACTERISTICS UNIT WEIGHT g RIGHT SIDE VIEW 00055 CENTER OF GRAVITY iN MM X Y Z UNIT HEIGHT IN MM PY1P018040 208 230 1 60 35 02 889 5 20 0 508 0 140 355 6 15 0 381 0 PY1P024040 060 208 230 1 60 35 02 889 5 PY1P030040 060 208 230 1 60 208 230 3 60 22 5 Eris 13 0 330 2 15 0 381 0 35 02 889 5 21 5 546 1 13 75 349 3 15 0 381 0 PY1P036060 090 208 230 1 60 208 230 3 60 460 3 60 37 02 940 3 22 5 571 5 14 0 355 6 13 0 330 2 PY1P042060 090 208 230 1 60 208 230 3 60 460 3 60 35 02 889 5 21 5 546 1 1
37. GC Tenninal J2 connaction Proper connection PIN 1 White PIN 2 Reg PIN 3 Black Rellout switch will automatically reset cut KGC will continue to lack Reliout switch fault Gut unit Check gas valve operation Ensure that induced draft LED 7 flashes Rollout switch has opened blower wheel is properly secured to motor shaft Reset unit at unit disconnect Flame sense fault The IGC sensed flame that should not be LED 3 flashes present 4 consecutive limit switch faults F LED 4 flashes Inadequate airflow to unit Ignition lockout Unit unsuccessfully attempted ignition for LED 5 flashes 15 minutes Induced draft motor fault IGC does not sense that induced draft LED amp flashes metor is operating Reliout control fault Microprocessor has sensed an error in the x F 7 P LED 8 flashes software or hardware If error code is not cleared by resetting unit power replace the IGC Reset 24 v to control board or tum thermostat off ihen on again Fault will automatically reset itself in one 1 hour WARNING A If the IGC must be replaced be sure to ground yourself to dissipate any electrical charge that may be present before handling new control board The IGC i sensitive tc static electricity and may be darnagad if the necessary precautions are not taken IMPORTANT Refer to Tabla 17 Troubleshocting Guido Heating for additional troubleshooting analysis LEGEND IGG Inte
38. Gas RETURN AIR FILTERS in t Throwaway Based on altitude of 0 to 2000 ft t Required filter sizes shown are based on the larger of the ARI Air Conditioning and Refrigeration Institute rated cooling airflow or the heating airflow velocity of 300 ft minute for high capacity type Air filter pressure drop for non standard filters must not exceed 0 08 in wg Table 3 Maximum Gas Flow Capacity NOMINAL IRON PIPE SASETER SIZE zm N Ve 622 J 824 1 1 049 1 380 1 610 Capacity of pipe in cu ft of gas per hr for gas pressure of 0 5 psig or less Pressure drop of 0 5 in wg based on a 0 60 specific gravity gas Refer to Table C 4 National Fire Protection Association NFPA 54 t This fength includes an ordinary number of fittings po TRAP N OUTLET 1 min E ue M i zz 2 min A C000098 Fig 8 Condensate Trap MN CAUTION Unstable operation may occur when the gas valve and manifold assembly are forced out of position while connecting improperly routed rigid gas piping to the gas valve Use a backup wrench when making connection to avoid strain on or distortion of the gas control piping xu Iss TEE OUT NIPPLE 3 MIN CAP Fig 9 Sediment Trap A CAUTION If a flexible conductor is required or allowed by the authority having jurisdiction black iron pipe shall be installed at the gas valve and shall extend a minimum of
39. Installation amp Start up Instructions PY1P PY2P Single Packaged Gas Heating e Electric Cooling Units NOTE Read the entire instruction manual before starting the installation TABLE OF CONTENTS SAFETY CONSIDERA TIONS CC P 2 INTRODUCTION er 3 RECEIVING AND INSTALLATION uiii tiim risp ekle he erbe soca peste chu seda ria va eet eva deba pede sab eee ea reu eve eB A dea PHA EN Ra F eh aoa T Ea eda Fe qa 3 CHECK EQUIPMBENT aeo eee rrt pe aiae eiaei eire raei a inat e ese ches eene eo etx ERE Recte era epa Poan Read eoe eap sete ore ce ia eara e uper desta ce ben 3 IDENTIEY UNI aea van s out citatus Gba duties da Melee us od ettet eite ho usas id erum 3 INSPECTE SHIPMENE oii toten doi i Dci sake teste ER Obi ep e ae eE ea S cit enar elucet edet uve iti ae aeos n eva iue eee pex e es ree ette a 3 INSTALLA TION nnde ee toii prete qeus tete ree Ne ped epe ee tees te oA pee tua ee enn deck doesnt essa edo qo CEDERE E Tuan needs ga RC svar 3 PROVIDE UNIT SUPPORT ordre tte et enne etiseri ert bn acre Due eese eau scan eh Pret set wn eei KEE eee reser eu a bea eeu oue se del vere rusa Coe eite eni a 3 ROOF CURB zie SLAB MOUNT XM GROUND MOUNT aad FIELD FABRICATE DUC FWORK 5 aescketecet sicui Do ee ect keae osa oan 2b Pond CoD oC Vota a oed LR E FER Dea Duk bene stv Lana HERR e Qu eH b eua ea De eda oce Deua VER QR AREEN aue 3 PROVIDE CLEARANCES ormi ieceaeoiteontds u
40. SERVICING INCHES mm INCHES mm TOR OR UNI Ss 2b m DU pr poet en 14 00 355 6 EVAP COIL ACCESS SIDE 36 00 914 0 DUCT SIDE OF UNIT 2 00 50 8 POWER ENTRY SIDE 5 ceat deo does LIC uere seek incra goma e RCM 36 00 914 0 SIDE OPPOSITE DUCT 14 00 355 6 EXCEPT FOR NEC REQUIREMENTS BOTTOM OF UNIT 0 50 12 UNT TOP ee 48 00 1219 2 FLUE PANEL 5 otn ters itecceqet emer Do ev U dese eria erede oa Vega 36 00 914 4 SIDE OPPOSITE DUCTS 36 00 914 01 DUCT PANEL ea eR edita aeos oen ieu ee eels 12 00 304 8 NEC REQUIRED CLEARANCES INCHES imm MINIMUM DISTANCES IF UNIT IS PLACED LESS THAN 12 00 304 8 FROM BETWEEN UNITS POWER ENTRY SIDE essess 42 00 1066 8 WALL SYSTEM THEN SYSTEM PERFORMANCE MAYBE COMPROMISE UNIT AND UNGROUNDED SURFACES POWER ENTRY SIDE 36 00 914 0 UNIT AND BLOCK OR CONCRETE WALLS AND OTHER GROUNDED SURFACES POWER ENTRY SIDE 42 00 1066 8 Note Wire Grilles are a field installed option LEGEND CG Center of Gravity COND Condensor EVAP Evaporator NEC National Electrical Code REQ D Required be 1193 9 pe 115A NOTE Dimensions are in in mm i br g 141 001 4 541 S TN a 3 z Y Rc 28 6 1 13 DIA K O p M POWER ENTRY 22 2 0 88 DIA HOLE CONTROL ENTRY
41. SUCTION LINE TEMPERATURE C SUSTION LINE TEMPERATURE 03 3 2 4 500045 4 00047 Fig 22 Cocling Charging Chart PY1P042 Units Fig 23 Cocling Charging Chart PY1P048 Units 024 amp GHZ CHARGING CHART rine ee s 13 aes 106 15 40 G83 120 10 ou wt z 65 88 wu x x 020 so X 820 9c 85 28 h 6 Ie fh g E4 E q e Gb t8 E E AM e os que o gs v AE ig 483 70 we te nu ul Ze 80 zec 4 8 M Z 4 t 348 ao L5 345 se id d I 2 9 40 zro ac NI I MI mi 207 30 zo ac 30 40 50 82 A 82 90 30 0 83 60 7 80 9c SECTION L ME TEMPERATURE CT SUCTCN LINE TEN PERATURE T i 4 0 Q 21 27 2 1 4 12 18 21 zt 32 SUCTION LINE TEMPERAT 3E C SUSTION LINE TEMPERATURE feh C00048 CODO48 Fig 24 Cooling Charging Chart PY1P060 Units Fig 25 Cooling Charging Chart PY2P024 Units 3 Restore electrical power to unit Start unit and check for proper blower rotation and motor specds during heating and cooling cycles G FLUE GAS PASSAGEWAYS To inspect the fluc collector box and upper arcas of the heat exchanger 1 Remove the combustion blower wheel and motor assembly according to directions in the Combustion 4ir Blower section 2 Remove the 3 screws holding the blower housing to the flue collector box cover Sco Fig 31 34 3 Remove the 12 serews holding the fluc collector box cover Sco Fig 33 34 to the heat exchanger assembly Inspect the heat exchangers 4 Clean all surfaces as required using a
42. Units 3 Slide the motor and blower wheel assembly out of the blower housing Sco Fig 33 Clean the blower wheel If additional cleaning is 5 To remove motor and cooling fan assembly remove 4 sercws that hold blower housing to mounting plate 6 To reinstall reverse the procedure outlined above I LIMIT SWITCH Remove unit access panel Limit switch is located on the blower partition J BURNER IGNITION Unit is cquipped with a dircet spark ignition 100 percent lockout system Ignition module is located in the control box Module contains a seli diagnostic LED During servicing refor to label diagram for LED interpretation If lockout occurs unit may be reset by cither momentarily interrupting power supply to unit or by turning selector switch to OFF position at the thermostat K MAIN BURNERS At the beginning of cach heating scason inspect for deterioration or blockage duc to corrosion or other causes Observe the main burner flames and adjust if necessary z 3 Table 15 PY2P Wet Coil Pressure Drop PY2P CFM IN WG 0 0535 0 087 0 123 0 0887 0 083 0 150 0 084 9 100 Q 177 0 099 0 177 0 204 0 199 0 137 0 156 0 108 0 120 0 132 Eun CA g ERE Node MHS 0 E uU e my OO E e g SUCTION LINE PRESSURE PSIG BUCTION i g
43. as inputs shown in Table 6 arc for altitudes from sca level to 2000 ft above sca level These inputs are based on natural gas with a heating valuc of 1050 B f at 0 65 specific gravity or propane gas with a heating value of 2500 Btwf at 1 5 specific gravity For clevations above 2000 ft reduce input 4 percent for cach 1000 ft above sea level When the gas supply being used has a different heating value or specific gravity refer to national and local codes or contact your distributor to determine the required orifice size A CAUTION These units are designed to consume the rated gas inputs using the fixed orifices at specified manifold pressures as shown in Table 6 DO NOT REDRILL THE ORIFICES UNDER ANY CIRCUMSTANCES C ADJUST GAS INPUT The gas input to the unit is determined by measuring the gas flow at the meter or by measuring the manifold pressure Measuring the gas flow at the moter is recommended for natural gas units The manifold pressure must be measured to determine the input of propane gas units MEASURE GAS FLOW NATURAL GAS UNITS Minor adjustment to the gas flow can be mado by changing the manifold pressure The manifold pressure must be maintained between 3 4 and 3 6 in wg If larger adjustments are required change main burner orifices following the recommendations of national and local codes NOTE All other appliances that use the same meter must be tumed off when gas flow is measured at the meter Procced as follows 1
44. ation from average voltage AB 457 452 5v BC 464 45727v AC 457 455 2v Maximum deviation is 7 v Determine percent of voltage imbalance Voltage Imbalance 100 x a 457 1 5396 This amount of phase imbalance is satisfactory as it is below the maximum allowable 2 IMPORTANT if the supply voltage phase imbalance is more than 2 contact your local electric utility company immediately Table 5 Legend 3 Make the following inspections a Inspect for shipping and handling damages such as broken lines loose parts disconnected wires etc b Inspect for oil at all refrigerant tubing connections and on unit base Detecting oil generally indicates a refrigerant leak c Leak test all refrigerant tubing connections using electronic leak detector halide torch or liquid soap solution If a refrigerant leak is detected see the Check for Refrigerant Leaks section d Inspect ali field and factory wiring connections Be sure that connections are completed and tight e Ensure wires do not contact refrigerant tubing or sharp sheet metal edges f Inspect coil fins If damaged during shipping and handling carefully straighten fins with a fin comb 4 Verify the following conditions N CAUTION Do not purge gas supply into the combustion chamber Do not use a match or other open flame to check for gas leaks Failure to follow this warning could resuit in an explosion causing serious injury or death a Ma
45. cd and W is deenorgizod the burners stop firing and the cvaporator fan motor shuts off after a 45 sec time off delay An LED light emitting diode indicator is provided on the control board to monitor operation The control board is located by removing the burner access panel During normal operation the LED is continuously on Sce Table 8 for error codes G LIMIT SWITCHES Normally closed limit switch LS completes the control circuit through the thermostat R circuit Should the leaving air temperature rise above the maximum allowable temperature the limit switch opens and the R control circuit brcaks Any interruption in the R control circuit instantly closes the gas valve and stops gas flow to the burners and pilot The blower motor continues to run until LS resets When the air temperature at the limit switch drops to the low temperature setting of the limit switch the switch closes and completes the R control circuit The electric spark ignition system cycles and the unit returns to normal heating operation Table 8 LED Indications ERROR CODE LED INDICATION Normal Operation On Hardware Failure Off Fan On Off Delay Modified 1 Flash Limit Switch Fault 2 Flashes Flame Sense Fault 3 Flashes Four Consecutive Limit Switch Faults 4 Flashes Ignition Lockout Fault 5 Flashes Induced Draft Motor Fault 6 Flashes Rollout Switeh Fault Flashes Internal Control Fault 8 Flashes Temporary lock out 1 hr 9 Flashes
46. ce is NOT to be used for temporary heating of buildings or structures under construction A99338 Fig 1 Unit PY1P and PY2P Low NO Model Available SAFETY CONSIDERATIONS Installation and servicing of air conditioning equipment can be hazardous due to system pressure and electrical components Only trained and qualified personnel should install repair or service air conditioning equipment Untrained personnel can perform basic maintenance functions of cleaning coils and filters All other operations should be performed by trained service personnel When working on air conditioning equipment observe precautions in the literature tags and labels attached to the unit and other safety precautions that may apply Follow all safety codes Wear safety glasses and work gloves Use quenching cloth for unbrazing operations Have fire extinguisher available for all brazing operations A WARNING Improper installation adjustment alteration service maintenance or use can cause carbon monoxide poisoning fire or an explosion which can result in personal injury or unit damage Consult a qualified installer service agency or gas supplier for information or assistance The qualified installer or agency must use only factory authorized kits or accessories when modifying this product A WARNING Before performing service or maintenance operations on unit turn off gas supply to unit Then turn off unit main power switch and install lockou
47. component connecting tubing with tubing cutter and remove component from unit d Carefully unsweat remaining tubing stubs when necessary Oil can ignite when exposed to torch flame Proceed as follows to inspect and prepare the unit for initial startup 1 Remove access panel 2 Read and follow instructions on all WARNING CAUTION and INFORMATION labels attached to or shipped with unit 16 LEGEND FLA Full Load Amps LRA Locked Rotor Amps C US MCA Minimum Circuit Amps MOCP Maximum Overcurrent Protection RLA Rated Load Amps CKT BKR Circuit Breaker NOTES 1 In compliance with NEC National Electrical Code requirements for multimotor and combination load equipment refer to NEC Articles 430 and 440 the overcurrent protective device for the unit shall be Power Supply fuse Canadian units may be fuse or circuit breaker 2 Minimum wire size is based on 60 C copper wire If other than 60 C wire is used or if length exceeds wire length in table determine size from NEC 3 Unbalanced 3 Phase Supply Voltage Never operate a molor where a phase imbalance in supply volt age is greater than 2 Use the following formula to determine the percentage of voltage imbalance 96 Voltage imbalance 00x max voltage dev ation from average voltage average voltage EXAMPLE Supply voltage is 460 3 60 AB 452v nere BC 464 v AC 455 v Average Voltage E EE 1371 3 457 Determine maximum devi
48. cooling cycle to ensure proper operation If discrepancies are observed in cither or both operating cycles or if a suspected malfunction has occurred check cach electrical component with the proper electrical instrumentation Refer to the unit wiring label when making these checkouts SA we NOTE Reicr to the heating and or cooling sequence of operation in this publication as an aid in determining proper control operation O REFRIGERANT CIRCUIT Annually inspect all refrigerant tubing conncetions and the unit base for oil accumulations Detesting oil generally indicates a refrigerant leak A WARNING System under pressure Relieve pressure and recover all refrigerant before system repair or final unit disposal te avoid sericus injury or death Use all service ports and open all flow control devices including solenoid valves If oil is detected or if low cooling performance is suspected loak tost all refrigerant tubing using an electronic loak dctcetor halide torch or liquid sosp solution If a refrigerant leak is detected refor to the Check for Refrigerant Leaky section If no refrigerant leaks arc found and low cooling performance is suspected refer to the Checking and Adjusting Refrigerant Charge section P GAS INPUT The gas input docs not require checking unless improper heating performance is suspected If a problem exists refor to the Start Lip section Q EVAPORATOR AIRFLOW The heating and or cooling airflow docs not require checking
49. d Units may be installed either on a rooftop a cement slab or directly on the ground if local codes permit See Fig 4 for roof curb dimensions Models with an N in the thirteenth position of the model number are dedicated Low NO units designed for California installations These models meet the California maximum oxides of nitrogen NO emissions requirements of 40 nanograms joule or less as shipped from the factory and must be installed in California Air Quality Management Districts where a Low NO rule exists RECEIVING AND INSTALLATION PROCEDURE 1 CHECK EQUIPMENT A IDENTIFY UNIT The unit model number and serial number are stamped on unit identification plate Check this information against shipping papers and job data Verify unit voltage and amperage requirements listed on unit rating plate agree with power supply provided to unit B INSPECT SHIPMENT Inspect for shipping damage while unit is still on shipping pallet If unit appears to be damaged or is torn loose from its anchorage have it examined by transportation inspectors before removal Forward claim papers directly to transportation company Manufacturer is not responsible for any damage incurred in transit Check all items against shipping list Immediately notify the nearest distributor if any item is missing To prevent loss or damage leave all parts in original packages until installation C INSTALLATION 1 Remove unit from shipping carton Leave top shipping skid on th
50. e flexible transition between rigid ductwork and unit to prevent transmission of vibration The transition may be screwed or bolted to duct flanges Use suitable gaskets to ensure weathertight and airtight seal All units must have field supplied filters or accessory filter rack installed in the return air side of the unit Recommended sizes for filters are shown in Tables 1 and 2 Size all ductwork for maximum required airflow either heating or cooling for unit being installed Avoid abrupt duct size increases or decreases or performance may be affected Adequately insulate and weatherproof ali ductwork located outdoors Insulate ducts passing through unconditioned space and use vapor barrier in accordance with latest issue of Sheet Metal and Air Conditioning Contractors National Association SMACNA and Air Conditioning Contractors of America ACCA minimum installation standards for heating and air conditioning systems Secure all ducts to building structure Flash weatherproof and vibration isolate all openings in building structure in accordance with local codes and good building practices 4n PROCEDURE 10 INSTALL ELECTRICAL CONNECTIONS A WARNING The unit cabinet must have an uninterrupted unbroken electrical ground to minimize the possibility of serious injury if an electrical fault should occur This ground may consist of an electrical wire connected to the unit ground lug in the control compartment or conduit appr
51. e proper cooling operation Never place articles on top of the unit Damage to unit may result I Remove 6 serews holding condenser grillo and motor to top cover 2 Tum motor grille assembly upside down on top cover to expose the fan blade 34_ BLOWER HOUSING AAA a LL int H il ME ta 2 SETSCREWS HIDDEN C99085 COORG Fig 34 Bumer Rack Removed Inspect the fan blades for cracks or bonds If fan needs to be removed loosen the setserew and slide the fan off the motor shaft When replacing fan blade position blade so the hub is 1 8 in sway from the motor end 1 8 in of motor shaft will be visible Sco Fig 12 Ensure that sctscrew engages the flat arca on the motor shaft when tightening Replace grillo M ELECTRICAL CONTROLS AND WIRING Inspect and check the electrical controls and wiring annually He sure to turn off the gas supply and then the electrical power to the unit Remove access panel to locate all the electrical controls and wiring Chock all clectrical comcctions for tightness Tighten all screw connections Ifany smoky or burned connections are noticed disassemble the connection clean all the parts restrip the wire end and reassemble the connection properly and securcly After inspecting the clectrical controls and wiring replace the access panel Start the unit and observe at least ono complete heating cycle and onc complete
52. e unit as a spreader bar to prevent the rigging straps from damaging the unit If the wood skid is not available use a spreader bar of sufficient length to protect unit from damage 2 Position the lifting bracket assembly around the base of the unit Be sure the strap does not twist 3 Place each of the 4 metal lifting brackets into the rigging holds in the composite pan 4 Thread lifting bracket strapping around bottom perimeter of unit as follows a Open lever of tension buckle ratchet type b Feed strapping through tension buckle as shown in Fig 7A c Pull strapping through tension buckle unit taut d Snap lever down to lock strap in tension buckle To release strapping squeeze safety latch lift lever and pull webbing outward 5 Tighten the tension buckle until it is taut Lifting brackets must be secure in the rigging holds 6 Attach field supplied clevis or hook of sufficient strength to hole in the lifting bracket See Fig 7B 7 Attach the 2 safety straps directly to the clevis or hook at the 4 rigging brackets DO NOT attach the safety straps to the lifting brackets See Fig 7B 8 Position lifting point directly over the unit s center of gravity 9 Lift unit When unit is directly over the roof curb remove the 2 safety straps Lower the equipment onto the roof curb PROCEDURE 2 PROVIDE UNIT SUPPORT A ROOF CURB Install accessory roof curb in accordance with instructions shipped with curb See Fig 4 for roof curb dimensio
53. enser coil evaporator coil and condensate drain pan at least once cach year or more often if necessary The coils arc casily cleaned when dry thercforc inspect and clean the coils cither before or after cach cooling scason Remove all obstructions including weeds and shrubs that interfere with the airflow through the condenser coil Straighten bent fins with a fin comb If coated with dirt or lint clean the coils with a vacuum cleaner using the soft brush attachment Be careful not to bend the fins If coated with oil or grease clean the coils with a mild detergent and water solution Rinse coils with clear water using a garden hose Be carcful not to splash water on motors insulation wiring or air filtor s For best results spray condenser coil fins from inside to outside the unit On units with an outer and inner condenser coil be sure to clean between the coils Be sure to flush all dirt and debris from the unit base Inspect the drain pan and condensate drain line when inspecting the coils Clean the drain pan and condensate drain by removing all forcign matter from the pan Flush the pan and drain tube with clear water Do not splash water on the insulation motor wiring or air filter s If the drain tube is restricted clear it with a plumbers snake or similar probe device Ensure that the auxiliary drain port above the drain tube is also clear M CONDENSER FAN A CAUTION Keep the condenser fan free from all obstructions to ensur
54. er alignment Limit switch cycles main bumers Table 18 Troubleshooting Guide LED Error Codes heck Samp power to unit 24 circuit breaker and Hardware failure T transformer Units without a 24 circuit breaker have an internal j Loss of power to control module KSCY cverload in the 24 transformer If the overload trips allow 10 mir LED OFF dips for automatic reset High limit switch operis during heat Fan ON OFF delay modified exchanger warm up period before far on Ensure unit is fired on rate ensure temperature rise is correct delay expires i eae A TR LED FLASH Limit switch opens within three minutes Ensure unit s extemal static pressure is within application guidelines after blower off delay timing in Heating mode Limit switch faults Check the operation of the indoor evaporator fan motor Ensure LED 2 flashes High temperature limit switch is open that the supply air terriperature rise is in accordance with the range or the unit nameplate Reset unit If problam persists replace control board Check operation of indoor evaporator fan motor and that supely air temperature rise agrees with range on unit nameplate information Check igniter and flame sensor electrode spacing gaps etc Ensure that flame sense and ignition wires are properly terminated Verify that unit is obtaining proper amount of gas Chack for proper voltaga If motor is operating check the speen sensor plug I
55. erature rise range of the urit 1 Remove cover serow over regulator adjustment serow on gas valve 2 Tum regulator adjustment serow clockwise to increase gas input or turn regulator adjustment sero counterclockwise to decrease input Manifold pressure must be between 3 4 and 3 6 in wg Unsafe operation of the unit may result if manifold pressure is outside this range Personal injury or unit damage may result A WARNING Unsafe operation of the unit may result if manifold pressure is outside this range Serious injury death or unit damage may result 3 Replace cover screw cap on gas valve 4 Turn off gas supply to unit Remove manometer from pressure tap and replace pipe plug on gas valve Turn on gas to unit and check for leaks MEASURE MANIFOLD PRESSURE PROPANE UNITS The main burner orifices on a propane gas unit src sized for the unit rated input when the manifold pressure reading matches the level specified in Table 6 Proceed as follows to adjust gas input on a propane gas unit 1 Tun off gas to unit 2 Remove pipe plug on manifold and connect manometer Sce Fig 13 3 Turn on gas to unit 4 Remove cover screw over regulator adjustment screw on gas valve 5 Adjust regulator adjustment screw to the correct manifold pressure as specified in Table 6 Turn adjusting screw clockwise to increase manifold pressure or turn adjusting serow counterclockwise to decrease manifold pressure 6 Replace cover screw 7
56. grated Gas Unit Controller LED Light Emitting Diode Temporary software lock out Electrical interference LED 8 flashes impeding KSC software START UP CHECKLIST Remove and Store in Job File T PRELIMINARY INFORMATION II PRE START UP insert checkmark in box as each item is completed VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS CHECK GAS PIPING FOR LEAKS CHECK THAT INDOOR EVAPORATOR AIR FILTER IS CLEAN AND IN PLACE VERIFY THAT UNIT INSTALLATION IS LEVEL CHECK FAN WHEEL PROPELLER FOR LOCATION IN HOUSING ORIFICE AND SETSCREW TIGHTNESS Ill START UP ELECTRICAL SUPPLY VOLTAGE L1 L2 L2 L3 L3 L1 COMPRESSOR AMPS L1 L2 L3 COMPRESSOR AMPS L1 L2 L3 INDOOR EVAPORATOR FAN AMPS TEMPERATURES OUTDOOR CONDENSER AIR TEMPERATURE DB RETURN AIR TEMPERATURE DB WB COOLING SUPPLY AIR DB WB GAS HEAT SUPPLY AIR PRESSURES GAS INLET PRESSURE IN WG GAS MANIFOLD PRESSURE IN WG REFRIGERANT SUCTION PSIG SUCTION LINE TEMP REFRIGERANT DISCHARGE PSIG DISCHARGE LINE TEMP VERIFY REFRIGERANT CHARGE USING CHARGING TABLES VERIFY THAT 3 PHASE SCROLL COMPRESSOR PY1P048 and PY2P030 060 IS ROTATING IN CORRECT DIRECTION Measured at suction irist to compresso Measured a lizuid line lew ing concense 39 Form IM PY1P 03 Cancels IM
57. he flanges Insulate and weatherproof all external ductwork joints and roof openings with counter flashing and mastic in accordance with applicable codes ug ri BLOCHOFF PANEL ON 018 ONLY 2 4 SUPPLY RETURN Gu 546 1 t21 501 254 0 10 901 254 0 rm 10 001 86 1 3 39 RETURN SUPPLY 024 042 ONLY Eu OPTIONAL SUPPLY l2 4 OPTIONAL fi RETURN 2 AIR OPENING ce DUCT DUCT OPENING OPENING 1 Y COND COI a a 1018 NON BENT L 49 6 9 831 He 550 5 21 67 REAR VIEW 249 6 be 9 83 REQUIRED CLEARANCE TO COMBUSTIBLE MATL TOP OF UNIT DUCT SIDE OF UNIT SIDE OPPOSITE DUCTS BOTTOM OF UNIT ELECTRIC HEAT PANEL NEC REQUIRED CLEARANCES INCHES mm a mmi BETWEEN UNITS POWER ENTRY SIDE 2 00 fioe 8 UNIT AND UNGROUNDED SURFACES POWER ENTRY SIDE 3e 60 914 0 UNIT AND BLOCK OR CONCRETE WALLS AND OTHE GROUNDED SURFACES POWER ENTRY SIDE sss 42 00 1066 8 LEGEND CG Center of Gravity COND Condensor EVAP Evaporator NEC National Electrical Code REQ D Required NOTE Dimensions are in in mm T kK oo TOP VIEW COND COIL EVAP COIL REQUIRED CLEARANCE FOR OPERATION AND SERVICING INCHES mm EVAP COIL ACCESS SIDE 36 00 914 9 POWER
58. ield supplied Roofing material Roofing material fleld supplied field supplied Duct work field supplied Duct work field supplied Cant strip Cant strip fleld supplied field supplied Provided with roofcurb Provided with roofcurb Roof Curb for Small Cabinet Roof Curb for Large Cabinet Note A When unit mounting screw is used Note A When unit mounting screw is used retainer bracket must also be used retainer bracket must also be used Gasket around duct insulated Gasket around deck pan outer edge insulated deck pan Long Support Return opening iBXC C00076 UNIT SIZE ODS CATALOG NUMBER B C B IN MM IN MM IN MM CPRFCURBOO06A00 8 203 11 279 161 2 419 28 3 4 730 P Y1P018 0342 peer es ee CPRFCURBOO7A00 14 356 11 279 161 2 419 28 3 4 730 CPRFCURBOO8A00 8 203 16 3 16 411 17 3 8 441 40 1 4 1022 PY1P048 060 PY2P042 060 i 9 CPRFCURBO09A00 14 356 16 3 16 411 17 3 8 441 40 1 4 1022 NOTES 1 Roof curb must be set up for unit being installed 2 Seal str p must be applied as required to unit being installed 3 Dimensions n are in millimeters 4 Roof curb is made of 16 gage steel 5 Table lists only the dimensions per part number that have changed 6 Attach ductwork to curb flanges of duct rest on curb 7
59. imum fuse circuit breaker size and minimum circuit amps ampacity for wire sizing See Tables 4 and 5 for electrical data The field supplied disconnect switch box may be mounted on the unit over the high voltage inlet hole when the standard power and low voltage entry points are used See Fig 2 and 3 for acceptable location See unit wiring label and Fig 11 for reference when making high voltage connections Proceed as follows to complete the high voltage connections to the unit or HIGH VOLTAGE POWER LEADS o SEE UNIT WIRING LABEL o cum TL POWER SUPPLY FIELD SUPPLIED FUSED DISCONNECT CONTROL BOX THERMOSTAT LOW VOLTAGE TYPICAL POWER LEADS SEE UNIT WIRING LABEL SPLICE BOX C99018 Fig 11 High and Control Voltage Connections Single phase units 1 Run the high voltage LI L2 and ground leads into the control box 2 Connect ground lead to chassis ground connection 3 Connect LI to pressure lug connection 11 of the compressor contactor 4 Connect L2 to pressure lug connection 23 of the compressor contactor Three phase units l Run the high voltage LI L2 L3 and ground leads into the control box 2 Connect ground lead to chassis ground connection 3 Locate the black and yellow wires connected to the lines side of the contactor 4 Connect field LI to black wire on connection 11 of the compressor contactor 5 Connect field wire L2 to yellow wire on connection 13 of the comp
60. ke sure gas line is free of air Before lighting the unit for the first time perform the following with the gas valve in the OFF position If the gas supply pipe was not purged before connecting the unit it will be full of air It is recommended that the ground joint union be loosened and the supply line be allowed to purge until the odor of gas is detected Never purge gas lines into a combustion chamber Immediately upon detection of gas odor retighten the union Allow 5 minutes to elapse then light unit b Make sure that condenser fan blade is correctly positioned in fan orifice Leading edge of condenser fan blade should be 1 2 in maximum from fan orifice venturi c Ensure fan hub is 1 8 in maximum from motor housing See Fig 12 MOTOR FAN GRILLE uz 1 8 MAX BETWEEN MOTOR AND FAN HUB MOTOR SHAFT C99009 Fig 12 Fan Blade Clearance d Make sure that air filter s is in place Make sure that condensate drain trap is filled with water to ensure proper drainage f Make sure that all tools and miscellaneous loose parts have been removed due a dia 7 i i 0 eS Y MANIFOLD PIPE PLUG C99019 Fig 13 Burner Assembly BURNER FLAME MANIFOLD C99021 Fig 14 Monoport Burner START UP PROCEDURE 1 CHECK FOR REFRIGERANT LEAKS Proceed as follows to locate and repair a refrigera
61. late to the condenser coil Do not locate the unit in either a corner or under an overhead obstruction The minimum clearance under a partial overhang such as a normal house overhang is 48 in above the unit top The maximum horizontal extension of a partial overhang must not exceed 48 in Do not place the unit where water ice or snow from an overhang or roof will damage or flood the unit Do not install the unit on carpeting tile or other combustible materials The unit may be installed on wood flooring or on Class A B or C roof covering materials m A 914 1371 198 04 DUCTS EA Z 927 57 B 36 527 SEAL STRIP MUST BE IN 1226 3 PLACE BEFORE PLACING 48 28 UNIT ON ROOF CURB PLACE RIGGING STRAPS IN BASEPAN SLOT BELOW RIGGING HOLDS BEFORE RIGGING C99015 MAXIMUM WEIGHT A Jj B O in i UNIT PY1P 20 0 22 5 21 5 22 5 21 5 22 0 22 0 UNIT PY2P 22 0 22 0 22 0 23 0 21 5 23 5 Fig 7B Suggested Rigging PROCEDURE 5 RIG AND PLACE UNIT A CAUTION When installing the unit on a rooftop be sure the roof will support the additional weight Use spreader bars or crate top when rigging the unit The units must be rigged for lifting See Fig 6 Refer to Table 1 and 2 for operating weight Use extreme caution to prevent damage when moving the unit Unit must remain in an upright position during all rigging and
62. le 2 Physical Data Unit PY2P UNIT SIZE PY2P 024040 024060 220040 230960 226080 236090 042060 22ra OPERATING WEIGHT Ib ai x COMPRESSORS Scroll Quantity 1 REFRIGERANT R 22 Quantity ib 3 7 44 44 2 5 2 6 4 REFRIGERANT METERING DEVICE Orifice ID in CONDENSER COIL Rows Fins in Face Area sq ft CONDENSER FAN Nominal Cfm Diameter in Motor Hp Rpm EVAPORATOR COIL Rows Fins in Face Area sq ft EVAPORATOR BLOWER Nominal Airflow Cfm 800 800 1000 4000 1200 1200 1400 1400 Size in 10 X 10 10 X 10 10 X 10 10 X 10 11 X 10 11X10 11X 10 11 X 10 Motor Hp Rpm FURNACE SECTION Burner Orifice No Qty Drill Size Natural Gas Burner Orifice No Qty Drill Size Propane Gas RETURN AIR FILTERS in t Throwaway Based on altitude of 0 to 2000 ft t Required filter sizes shown are based on the larger of the ARI Air Conditioning and Refrigeration inst tute rated cooling airflow or the heating airflow velocity of 300 ft minute for high capacity type Air filter pressure drop for non standard filters must not exceed 0 08 in wg 034 030 030 032 032 034 1 47 1 17 1 47 2 47 2 17 2 17 10 8 12 7 12 7 9 1 9 1 12 3 2350 2350 2350 2350 2350 3300 22 22 22 22 22 22 1 8 825 418 825 1 8 825 1 8 825 1 8 825 1 8 825 1 8 825 1 8 825 3 15 3 15 3 15 3 15 3 15 3 15 3 15 3 15 3 1 3 1 3 1 3 1 3 7 3 7 47 4 7 1 4 1075 1 4 1075 1 4 1075 1 4 1
63. le for test gage connection must be installed immediately upstream of the gas supply connection to the gas valve When installing the gas supply line observe local codes pertaining to gas pipe installations Refer to the NFGC ANSI Z223 1 1988 NFPA latest edition in Canada CAN CGA B149 1 2 M86 In the absence of local building codes adhere to the following pertinent recommendations 1 Avoid low spots in long runs of pipe Grade all pipe 1 4 in in every 15 ft to prevent traps Grade all horizontal runs downward to risers Use risers to connect to heating section and to meter 2 Protect all segments of piping system against physical and thermal damage Support all piping with appropriate straps hangers etc Use a minimum of one hanger every 6 ft For pipe sizes larger than 1 2 in follow recommendations of national codes 3 Apply joint compound pipe dope sparingly and only to male threads of joint when making pipe connections Use only pipe dope that is resistant to action of liquefied petroleum gases as specified by local and or national codes Never use Teflon tape Instali sediment trap in riser leading to heating section See Fig 9 This drip leg functions as a trap for dirt and condensate Install an accessible external manual main shutoff valve in gas supply pipe within 6 ft of heating section Install ground joint union close to heating section between unit manual shutoff and external manual main shut off valve OON A
64. ly Table 4 Legend Table 5 Electrical Data Unit PY2P VOLTAGE OUTDOOR FAN INDOOR FAN Min Max RLA LRA FLA FLA MCA irn n 208 230 1 60 25 208 230 1 60 i 30 208 230 3 60 20 208 230 1 60 i 40 208 230 3 60 25 460 3 60 15 208 230 1 60 7 i 45 208 230 360 30 4603 60 i i 15 208 230 160 45 208 230 360 l 30 4603 60 i 15 208 230 160 60 208 230 3 60 45 460 3 60 20 PRE START UP A WARNING Failure to observe the following warnings could result in serious injury 1 Follow recognized safety practices and wear protective goggles when checking or servicing refrigerant system 2 Do not operate compressor or provide any electric power to unit unless compressor terminal cover is in place and secured 3 Do not remove compressor terminal cover until all electrical sources are disconnected 4 Relieve and recover all refrigerant from system before touching or disturbing anything inside terminal box if refrigerant leak is suspected around compressor terminals 5 Never attempt to repair soldered connection while refrigerant system is under pressure 6 Do not use torch to remove any component System contains oil and refrigerant under pressure To remove a component wear protective goggles and proceed as follows a Shut off gas supply and then electrical power to unit b Relieve and recover all refrigerant from system using both high and low pressure ports c Cut
65. mers have internal overcurrent protection that requires a cool down period to reset Miswired cr loose connections Check all wiring and wirenut connections Burned cut heat anticipater in Burners will not ignite thermostat Replace termostat Broker thermostat wire Run continuity check Replace wire if necessary Chack flame ignition and sense electrode positioning Adjust as necessary Chack gas line for air Purge as necessary NOTE After purging gas line of air wait at least minutos for any gas to dissipate before attempting to light unit Misaligned spark electrodes Nc gas at main burners 2 Check gas valve Dirty air filter Clean cr replace filter as necessary i Check gas pressure at manield match with that on Gas input te furnace too low unit nameplate Unit undersized for application Raplace with proper unit or add additional unit Inadequate healing Restricted airflow Clean or replace filter Rerrove any restriction Blower speed ioo low old speed tap if available or install altemate Chack rotation of blower thermostat heat anticipator settings temperature rise of unit Adjust as necessary 1 Tighten all screws around bumer compartment Incomplete combustion results in 2 Cracked heat exchanger Replace Poor flame characteristics Aldehyde odors carbon monoxide soocting 3 Unit overfired Reduce input change orifices or flama floating flame adjust gas line or manifold pressure 4 Check burn
66. mpressor Defective run start capacitor overload start relay potent ne cause and roolace z aplace fuse or reset circuit breaker Ona leg of 3 chase power dead Datermine cause Compressor will not start but condenser fan runs htiega A i Correct the direction cf rotation by reversing the makes excessive noise and there may Scroll compressor is rotating in the wrong direction phase pewar leads to the unit Shut down unit be a low pressure differential to allow pressures Ceu CS 3 Recover refrigerant evacuate system and recharge to Refrigerant overcharge or undercharge capacities shown on nameplate Defective compressor Raplace and determine causa Insufficient line voltage Datarmine cause and correct Blocked condenser Datermine cause and carrect Defective run start capacitor overload or start relay Daterrrine cause and replace Defective thermostat Replace thennestat Faulty cordenser fan moter or capacitor Replace Restriction in refrigerant system Locate restriction and remove Dirty air filter Replace filtar Unit undersized for load Decrease load or increase unit size Thermostat set toc low Reset thermostat Compressor operates continuously Low refrigerant charge Locate leak repair and recharge Leaking valves in compressor Raplace compressor Air in system Recover refrigerant evacuate system and recharge Condenser coil dirty or restricted Clean coil or remove restriction Dirty air filte
67. nected to the jumper wire Insulate removed lead end to avoid contact with chassis party To sclect high spood on 460 v GE motors separate the black female quick conncet QC from the jumper lead male quick conncet QC and connect the black lead to the BR Jisufaie the jumper to avoid contaci with any chassis paris D COOLING SEQUENCE OF OPERATION With the room thermostat SYSTEM switch in the COOL position and the FAN switch in the AUTO position the cooling sequence of operation is as follows 325 1 When the room temperature rises to a point that is slightly above the cooling control setting of the thermostat the thermostat completes the circuit between thermostat terminal R to terminals Y and G These completed circuits through the thermostat The normally open contacts of energized contactor C close and complete the circuit through compressor motor COMP to condenser outdoor fan motor OFM Both motors start instantly hM 3 The set of normally open contacts of cnergized relay BM close and complete the circuit through evaporator blower indoor fan motor IEM NOTE Once the compressor has started and then stopped it should not be started again until 5 minutes have elapsed The cooling cycle remains on until the room temperature drops to a point that is slightly below the cooling control setting of the room thermostat At this point the thermostat breaks the circuit between thermostat terminal R to
68. ner or blower access panel 1 Place room thermostat SYSTEM switch in the HEAT position and the fan switch is placed in AUTO position won Gene W43 BLK BLK FIELD x TP NET We YEL Seas SS a ml 21 YEL OFM SUPPLY 4 W614 YEL CAP 2 SS fee ae Se S aed BRN 4 r H F EQUIP GND gu W8 BLK POWE EL O l W7 YEL R COMP W59 BLU W9 BLU dXS SCHEMATIC LII ee RES 208 230 1 60 582A ONLY YEL SEE NOTE 4 BRNIWHT IFM W16 YEL a cap i ORYEL L i J BRN W15YEL PRIMARY OT 30V COOLING FAN LOGIC Wi4BLK Go w 230 v10 1o d YEL IDM ENERGIZED P ENERGIZED e A CAP 3 j TRANI 3 g I BRN HEATING FAN LOGIC SECONDARY SE GRNYEL 4 AV 2 4 SR x uw e e eek ENERGIZED DE ENERGIZED a CR gt W13 BLK E 24v SPLICE BOX ED RU W39 RED iu N IGC pam W19 WHT rap r ER TANTAS See SEE NOTE 5 1 BL OFF
69. ns Install insulation cant strips roofing and flashing Ductwork must be attached to curb IMPORTANT The gasketing of the unit to the roof curb is critical for a watertight seal Install gasketing material supplied with the roof curb Improperly applied gasketing can also result in air leaks and poor unit performance Curb should be level to within 1 4 in This is necessary for unit drain to function properly Refer to accessory roof curb installation instructions for additional information as required B SLAB MOUNT Place the unit on a solid level concrete pad that is a minimum of 4 in thick with 2 in above grade The slab should be flush on the compressor end of the unit to allow condensate drain installation and should extend 2 in on the three remaining sides of the unit See Fig 6 Do not secure the unit to the slab except when required by local codes C GROUND MOUNT The unit may be installed either on a slab or placed directly on the ground if local codes permit Place the unit on level ground prepared with gravel for condensate discharge PROCEDURE 3 FIELD FABRICATE DUCTWORK Secure all ducts to roof curb and building structure on vertical discharge units Do not connect ductwork to unit For horizontal applications unit is provided with flanges on the horizontal openings Installation of flexible duct connector is recommended to prevent transmission of vibration and or noise to structure All ductwork should be secured to t
70. nt leak and to charge the unit 1 Locate leak and make sure that refrigerant system pressure has been relieved and reclaimed from both high and low pressure ports 2 Repair leak following Refrigerant Service procedures NOTE Install a filter drier whenever the system has been opened for repair 3 Add a small charge of R 22 refrigerant vapor to system and leak test unit 4 Recover refrigerant from refrigerant system and evacuate to 500 microns if additional leaks are not found 5 Charge unit with R 22 refrigerant using a volumetric charging cylinder or accurate scale Refer to unit rating plate for required charge Be sure to add extra refrigerant to compensate for internal volume of filter drier PROCEDURE 2 START UP HEATING AND MAKE ADJUSTMENTS N CAUTION Complete the required procedures given in the Pre Start Up section before starting the unit Do not jumper any safety devices when operating the unit Make sure that burner orifices are properly aligned Unstable operation may occur when the burner orifices in the manifold are misaligned Follow the lighting instructions on the heating section operation label located inside the burner or blower access door to start the heating section NOTE Make sure that gas supply has been purged and that all gas piping has been checked for leaks A CHECK HEATING CONTROL Start and check the unit for proper heating control operation as follows see furnace lighting instructions located inside bur
71. or service on the unit 2 Use extreme caution when removing panels and parts As with any mechanical equipment personal injury can result from sharp edges etc 3 Never place anything combustible either on or in contact with the unit 4 Should overheating occur or the gas supply fail to shut off turn off external main manual gas valve to the unit Then shut off electrical supply and install lockout tag A CAUTION Errors made when reconnecting wires may cause improper and dangerous operation Label all wires prior to disconnection when servicing The minimum maintenance requirements for this equipment are as follows 26 Table 11 Dry Coil Air Delivery Horizontal Downflow Discharge Unit PY1P018 060 Deduct 10 percent for 208 Voits 230 AND 460 VOLT External Static Pressure in wg 0 3 0 4 0 5 0 6 177 165 153 796 668 428 Air delivery values are without air filter and are for dry coil See Table 14 PY1P Wet Coil Pressure Drop NOTE Deduct field supplied air filter pressure drop and wet coil pressure drop to obtain external static pressure available for ducting Table 12 Filter Pressure Drop In wg CFM GEM UNIT SIZE FILTER SIZE aS T600 700 800 908 1000 1100 1200 1306 1400 1500 1600 1700 1800 1900 2000 2100 2200 2300 018 02
72. oved for electrical ground when installed in accordance with NEC National Electrical Code ANSI NFPA latest edition and local electrical codes In Canada follow Canadian Electrical Code CSA Canadian Standards Association C22 1 and local electrical codes Failure to adhere to this warning could result in serious injury or death Z CAUTION Failure to follow these precautions could result in damage to the unit being installed 1 Make all electrical connections in accordance with NEC ANSI NFPA latest edition and local electrical codes governing such wiring in Canada all electrical connections must be in accordance with CSA standard C22 1 Canadian Electrical Code Part 1 and applicable local codes Refer to unit wiring diagram Use only copper conductor for connections between field supplied electrical disconnect switch and unit DO NOT USE ALUMINUM WIRE Be sure that high voltage power to unit is within operating voltage range indicated on unit rating plate Do not damage internal components when drilling through any panel to mount electrical hardware conduit etc On 3 phase units ensure phases are balanced within 2 percent Consult local power company for correction of improper voltage and or phase imbalance N e w A HIGH VOLTAGE CONNECTIONS The unit must have a separate electrical service with a field supplied waterproof disconnect switch mounted at or within sight from the unit Refer to the unit rating plate for max
73. r Replace filler Dirty condenser coil Clean coil Excessive head pressure Refrigerant overcharged Recover excess refrigerant Air in system Recover refrigerant evacuate system and recharge Condenser air restricted or air short cycling Determine cause and correct Low refrigerant charge Check for leaks repair and recharge Head pressure Loo low Compressor valvos leaking Replace compressor Restriction in liquid tube Remove restriction High heat load Check for scurce and eliminate Excessive suction pressure Compressor valvos leaking Replace compressor Refrigerant overcharged Recover excess refrigerant Dirty air filter Raplace Fiter Low refrigerant charge Check for leaks repair and recharge Metering device or low side restricted Ramove scurce of restriction Suction pressure too low Insufficiant evaporator airflow Increase air quantity Check filter replace if nacessary Temperature tco low in conditioned area Reset thermostat Qutdcor ambient below 40 F Install Icw ambient kit Field installed filter driar restricted Replace Compressor cycles other than normally satisfying thermostat Table 17 Troubleshooting Guide Heating Water in gas line Drain Install drip leg Ne power te fumace Check power supply fuses wiring or circuit breaker Check transformer No 24 y power supply to control circuit NOTE Some transfor
74. ressor contactor EE NN Table 4 Electrical Data Unit PY1P VOLTAGE OUTDOOR FAN INDOOR FAN Min Max RLA LRA FLA FLA MCA ici ed or 208 230 1 60 7 l m 208 230 1 60 l o 208 230 1 60 l x 208 230 3 60 208 230 1 60 A 208 230 3 60 j 460 3 60 a 208 230 1 60 l i 208 230 3 60 2 460 3 60 E 208 230 1 60 l E 208 230 3 60 x 460 3 60 5 208 230 1 60 i l 5 208 230 3 60 F l P 460 3 60 l E 6 Connect field wire L3 to Blue wire from compressor B SPECIAL PROCEDURES FOR 208 V OPERATION Z WARNING Before making any wiring changes make sure the gas supply is switched off first Then switch off the power supply to the unit and install lockout tag Electrical shock can cause serious injury or death C CONTROL VOLTAGE CONNECTIONS Do not use any type of power stealing thermostat Unit control problems may result Use no 18 American Wire Gage AWG color coded insulated 35 C minimum wires to make the control voltage connections between the thermostat and the unit If the thermostat is located more than 100 ft from the unit as measured along the control voltage wires use no 16 AWG color coded insulated 35 C minimum wires STANDARD CONNECTION Remove knockout hole located in the flue panel adjacent to the control access panel See Fig 2 and 3 Remove the rubber grommet from the installer s packet included
75. side tabs See Fig 10A amp 10B m2 4 A OCCUF C99012 Fig 10B Vertical Duct Cover Removed If unit ductwork is to be attached to vertical opening flanges on the unit composite base jackstand applications only do so at this time CAUTION Collect ALL screws that were removed Do not leave screws on rooftop as permanent damage to the roof may 5 6 7 It is recommended that the unit base insulation around the perimeter of the vertical return air opening be secured to the unit base with aluminum tape Applicable local codes may require aluminum tape to prevent exposed fiberglass Cover both horizontal duct openings with the duct covers from the accessory duct cover kit Ensure opening is air and watertight After completing unit conversion perform all safety checks and power up unit NOTE The design and installation of the duct system must be in accordance with the standards of the NFPA for installation of nonresidence type air conditioning and ventilating systems NFPA 90A or residence type NFPA 90B and or local codes and ordinances Adhere to the following criteria when selecting sizing and installing the duct system i 2 Units are shipped for horizontal duct installation by removing duct covers Select and size ductwork supply air registers and return air grilles according to American Society of Heating Refrigeration and Air Conditioning Engineers ASHRAE recommendations Us
76. ssure psig to determine desired system operating suction linc temperature Seo Fig 18 30 6 Compare actual suction tube temperature with desired suction tube temperature Using a tolerance of 3 F add refrigerant if actual temperature is more than 3 F higher than proper suction tube temperature or remove refrigerant if actual temperature is more than 3 F lower than required suction tube temperature NOTE If the problem causing the inaccurate readings is a refrigerant leak refer to the Check for Refrigerant Leaks section C INDOOR AIRFLOW AND AIRFLOW ADJUSTMENTS A CAUTION For cooling operation the recommended airflow is 350 te 450 cfm for each 12 000 Btuh of rated cooling capacity For heating operation the airflow must produce a temperature rise that falls within the range stamped on the unit rating plate Table 7 shows the temperature rise at various airflow rates Tables 11 and 13 show both heating and cooling sirflows at various cxternal static pressures Refer to these tables to determine the airflow for the system being installed Sce Tables 14 and 15 for wet coil pressure drop NOTE Be sure that all supply and rcturn sir grilles are open frec from obstructions and adjusted properly A WARNING Before changing blower speed shut off gas supply Then disconnect electrical power to the unit and install lockout tag Electrical shock or explosion can cause serious injury or death Airflow can be changed by changing the lead
77. t tag Electrical shock or explosion could cause serious injury or death Recognize safety information This is the safety alert symbol A When you see this symbol in instructions or manuals be alert to the potential for personal injury Understand the signal words DANGER WARNING CAUTION and NOTE These words are used with the safety alert symbol DANGER identifies the most serious hazards which will result in serious injury or death WARNING signifies a hazard which could result in serious injury or death CAUTION is used to identify unsafe practices which would result in minor personal injury or product and property damage NOTE is used to highlight suggestions which will result in enhanced installation reliability or operation pe ae These instructions cover minimum requirements and conform to existing national standards and safety codes In some instances these instructions exceed certain local codes and ordinances especially those that may not have kept up with changing residential construction practices We require these instructions as a minimum for a safe installation INTRODUCTION The PYIP and PY2P units See Fig 1 are fully self contained combination Category gas heating electric cooling units designed for outdoor installation See Fig 2 and 3 for unit dimensions All unit sizes have return and discharge openings for both horizontal and downflow configurations and are factory shipped with all downflow duct openings covere
78. tere teda teo Ea A rettet etd arte Avia e bg ode Eaa F e le Roh ien rate roba 6 RIG AND PLACE UN cise iiie ied pre obere ette rh ata see eS eee ode ebe bane pado nad Teia sere RE seed oe koi e esas Eea eei enda eaa wets Goma eb CRM ea o nene tarea 8 CONNECT CONDENSATE DRAIN iuaieenicrisqritesactent otivecinoendbsandesadesdavend Toatdoaascabdesadnssabssasbanwsinassanbhaasedssiadadeadsedusaniabedbesidbetevsaeseai cose 8 INSTALE FLUE HOOD antera i rete tatio eager etui mte tu FS ORUM eTEN Aa AEA sad C REEF denero Rea Lose Pea ta cota ATAA INS TALES GAS PIPING an 1 e aA IRR ARR erro nena PR Ee Quae ege ipea rege Ce EFE en vau deu Ho eure Ree Da ego To PL CPP OPERE INSTALL DUCT CONNECTIONS se CONFIGURING UNITS FOR DOWNFLOW VERTICAL DISCHARGE cece enint ttn tha ththa tria tht tha tata ta t sa a tb sa ania 12 INSTALL ELECTRICAL CONNECTIONS irisi isan attt rtu disstari eran ad ana rh n pe vy dS BERE ORIS SENAPE ESEAS VEDENA EHE SOR VEL SM Hle ag ERA YA Ga eH RE E IRD GRE S YR PREDA UAR riko i4 HIGH VOLTAGE CONNECTIONS de SPECIAL PROCEDURES FOR 208 V OPERATION eerte eese tbke esee pu tensioni ee tirei opel Fen era eno ER en Ebo SpE Xn ERR euo eral a eee 15 CONTROL VOLTAGE CONNECTIONS dulecisesec inel divas aA EEEa TASE rna E de ug Gea rhet eget ro bespon eee ep eteuval cuna vue oae Dre e Ree ie eoe Heb et 15 HEAT ANTICIPATOR SETTING TRANSFORMER PROTECTION Dgtisscag CAII STARTUP ar uirga t eee ea egeta CHECK FOR REFRIGERANT L
79. terminals Y and G These open circuits docnergize contactor coil C The condenser and compressor motors stop After a 30 soc delay tho blower motor stops The unit is in a standby condition waiting for the next call for cooling from the room thermostat MAINTENANCE To ensure continuing high performance and to minimize the possibility of premature equipment failure periodic maintenance must be performed on this equipment This combination heating cooling unit should be inspected at least once cach year by a qualified service person To troubleshoot cooling or heating of units refer to Tables 16 18 NOTE Consult your local dealer about the availability of a maintenance contract Table 14 PY1P Wet Coil Pressure Drop UNIT SIZE AIRFLOW PRESSURE DROP PY1P CFM IN WG A WARNING The ability to properly perform maintenance on this equipment requires certain expertise mechanical skills tools and equipment If you do not possess these do not attempt to perform any maintenance on this equipment other than those procedures recommended in the User s Manual FAILURE TO HEED THIS VVARNING COULD RESULT IN SERIOUS INJURY AND POSSIBLE DAMAGE TO THIS EQUIPMENT A WARNING Failure to follow these warnings could result in serious injury 1 First turn off gas supply to the unit Then turn off electrical power to the unit and install lockout tag before performing any maintenance
80. unless improper performance is suspected Ufa problem exists he sure that all supply and return air grilles are open and free from obstructions and that the air filter is clean When necessary refer to the Indoor Airflow and Airflow Adjustments section to chock the system airflow R METERING DEVICE ACUTROL DEVICE This metering device is a fixed orifice and is located in the header to the evaporator coil S LIQUID LINE STRAINER The liquid line strainer to protect metering deviec is made of wire mesh and located in the liquid line on the inlet side of the metering device TROUBLESHOOTING Use the Troubleshooting Guides Sco Tables 16 18 if problems occur with these units START UP CHECKLIST Use the Start Up Checklist to ensure proper start up procedures are followed 35 Table 16 Troubleshecting Guide Cooling Pewar Failure all power company Fuse blown or circuit breaker tripped Raplace fuse or reset circuit breaker Compressor and condenser fan Defective thermostat contacter transformer or control relay Replace component will not start Insufficient line voltage Determine cause and correct Incorrect cr faulty wiring Check wiring diagram and rewire correctly Thermostat setting too high Lower thermostat setting below room temperature Faulty wiring or loose connections in compressor circuit Check wiring and repair or replace Compressor motor burned cut seized or internal Datermine cause overload open Replace co
81. wing Prime the trap with water Connect a drain tube using a minimum of 3 4 in PVC or 3 4 in copper pipe all field supplied at the outlet end of the 2 in trap Do not undersize the tube Pitch the drain tube downward at a slope of at least 1 in for every 10 ft of horizontal run Be sure to check the drain tube for leaks PROCEDURE 7 INSTALL FLUE HOOD The flue hood assembly is shipped screwed to the coil panel in the indoor blower compartment Remove the service access panel to locate the assembly See Fig 31 NOTE Dedicated low NO models MUST be installed in California Air Quality Management Districts where a Low NO rule exists These models meet the California maximum oxides of nitrogen NO emissions requirements of 40 nanograms joule or less as shipped from the factory NOTE Low NO requirements apply only to natural gas installations A CAUTION The venting system is designed to ensure proper venting The flue hood assembly must be installed as indicated in this section of the unit installation instructions Ro Table 1 Physical Data Unit PY1P NOMINAL CAPACITY ton 1 2 2 3 OPERATING WEIGHT Ib 249 on 280 280 a 355 COMPRESSORS Reciprocating Quantity 1 REFRIGERANT R 22 Quantity Ib REFRIGERANT METERING DEVICE Acutrol Device Orifice ID in 034 034 034 034 034 032 032 CONDENSER COIL 1 47 4 47 1 17 1 17 1 17 1 47 1 17 4 47 1 47 Rows Fins in Face Area sq ft 6 1 9 1
82. wire brush H COMBUSTION AIR BLOWER Clean periodically to assure proper airflow and heating efficiency Inspect blower wheel every fall and periodically during the heating season For the first heating scason inspect blower wheel bi monthly to determine proper cleaning frequency To inspect blower wheel remove draf hood assembly Shine a flashlight into opening to inspect wheel If cleaning is required remove motor and wheel as follows 1 Remove unit access panel Scc Fig 32 2 Remove the 7 screws that attach induccd draft motor mounting plate to blower housing Scc Fig 33 3Q 1035 G0HZ CHARGING CHART peu E EP asel 60 5 a e 95 25 3 2l y 85 23 4 620 a 785 24 amp 65 18 Ed BB 13 a 551 80 e5 ig 483 y ro o fi J Wann Z 2 4e 600 i ps t 345 50 d 2 0 en 294 30 30 0 Bo 80 7C 80 90 SUCTION LINE TEMPERATURE T 10 16 z zr a SUCTION LINE TEMPERATURE 2 colina Charging Chart PY2ZP030 Un E p Az t PRESSURE PSI E SUCTION LIN E e SUCTION LINE PRES N n e 8

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