Страница 1: ...ed service per sonnel 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 safet...
Страница 2: ...Roof Curb Installation Instructions for additional information as required When acces sory roof curb is used unit may be installed on class A B or C roof covering material C_urier roof curb accessorie...
Страница 3: ...8PG i C ACCESSO_ PACKAGE i i L 6 4 E A L D SCA_E 11 37 112 DETAIL SCALE I 32 NOTES ROOFCUR_ ACCESSORYIS S_IPPEO UNASSEM_LED INS_LAT _ PANELS _I_ENSIONS IN I _RE iN _ LLi_ETERS ROOFC_R_ _ALVANIZE_ 81_E...
Страница 4: ...t set back thermostat To operate at lower return air temperatures a field supplied outdoor air temperature control must be used to initiate both stages of heat when the temperature is below 45 E Indoo...
Страница 5: ...2 17 12 6 12 6 2 17 12 6 1 24 I 1 24 3500 4500 1 8 1 4 825 1100 300 300 2 1598 I I 4 15 9 8 1 12x 9 1 12x 9 Belt Belt 8OO 0 85 0 85 1620 48Y 48Y 482 736 656 1001 Ball 2000 1 9 2 9 1 9 2 9 6 8 5 0 1 2...
Страница 6: ...er power exhaust as stated in Note 1 a removable fence or barricade requires no clearance 4 Dimensions are from outside of base rail Allow 0 5 16 8 on each side for top cover drip edge 5 Units may be...
Страница 7: ...at panel and into the intake hood NOTE When properly installed the flue hood will line up with the combustion fan housing See Fig 6 _ INLET HOOD GAS SECTION FLUE ACCESS DOOR HOOD Fig 4 Flue and Inlet...
Страница 8: ...e up If drain line is installed downstremn from the external trap pitch the line away fi_m the unit at 1 in per 10 ft of run Do not use a pipe size smaller than the unit connection 3 4 in See Fig 8 an...
Страница 9: ...mary side of the transformel Refer to unit label diagram for additional information All field wiring must comply with NEC National Electrical Code tuld local codes Size wire based on MCA Minimum Circu...
Страница 10: ...of colored wire from subbase temlinals through conduit into unit to low voltage connections as shown on unit label wiring diagram and in Fig 13 NOTE For wire runs up to 50 ft use no 18 AWG American W...
Страница 11: ...33 33 148 148 32 9 32 9 35 35 32 32 125 125 35 0 35 5 40 40 34 34 150 150 24 2 24 2 25 25 24 24 105 105 24 5 24 5 25 25 24 24 123 123 25 6 25 6 30 30 25 25 107 107 25 9 25 9 30 30 26 26 125 125 11 5 1...
Страница 12: ...4 ALT 7 5 40 8 40 8 45 45 STD 2 6 17 6 20 ALT 3 4 18 4 20 414 506 9 6 75 1 0 8 0 30 STD 2 6 18 2 20 0 6 ALT 3 4 19 20 STD 2 0 14 15 ALT 2 8 14 8 15 518 633 7 6 54 1 0 8 0 24 STD 2 0 15 4 20 1 4 ALT 2...
Страница 13: ...onomizer panel Secure hood to panel with sclews saved from Step 2 See Fig 15 and 16 5 Align hole in flange of economizer panel with left edge of hood Hang economizer hood on the top flange of the econ...
Страница 14: ...t with the outdoor enthalpy set point potentiometer on the EconoMiSer IV controller The set points are A B C and D See Fig 22 The factory installed 620 ohm jumper must be in place across terminals SR...
Страница 15: ...REMOVE 620G RESISTOR BETWEEN SR AND SR WNEN IA ENTNALP OR RETURN AIR SENSO_ IS NSTAI_E_ PECI PEC2 EC_ Fig 18 EconoMi er IV Wiring 19 18 17 16 15 E14 13 12 11 10 9 4O I _ _ LED ON LED OFF LED ON LED ON...
Страница 16: ...OUTDOOR AIR IS AQ1 DCV DCV I J 0 f SUITABLE FOR FREE COOLING ENTHALPY CHANGEOVER SET POINT Fig 21 EconoMiSer IV Controller Potentiometer and LED Locations CONTROL CONTROL POINT CURVE APPROX F C AT 50...
Страница 17: ...d supplied remote potentiometer Honeywell p_ut number 963B1128 is wired to file EconoMiSer IV controller the minimum position of the damper can be controlled from a remote location To control the mini...
Страница 18: ...losed and return air damper fully open Fig 24 Pressure Drop for Vertical Economizer 0 34 e e 0 32 0 30 0 28 0 26 0 24 0 22 0 20 0 18 0 16 0 14 0 12 0 10 0 08 0 06 0 04 0 02 0 00 0 280 800 780 1000 125...
Страница 19: ...selection then press Mode to continue to the next variable Dehumidification of Fresh Air with DCV Demand Con trolled Ventilation Control Infomiation fi_om ASHRAE American Society of Heating Refiigera...
Страница 20: ...nit Preparation Make sure that unit has been installed in accordance with installation instructions and appli cable codes Gas Piping Check gas piping for leaks Disconnect gas piping from unit when lea...
Страница 21: ...ght emitting diode is observed the evaporator fan on off delay has been modified If the limit switch trips at the stmt of the heating cycle dur ing the evaporator on delay the time period of the on de...
Страница 22: ...m peratum set point at 50 to 55 E If there is a further demand for cooling cooling second stage Y2 is energized then the control will bring on com pressor stage 1 to maintain the mixed air temperature...
Страница 23: ...ge motor drive and 0 85 for high range motor drive 3 See page 35 for General Fan Performance Notes Table 7 Fan Performance 48PGE M04 Vertical Units AVAILABLE EXTERNAL STATIC PRESSURE in wg AIRFLOW 0 2...
Страница 24: ...rpm for low range motor drive and 796 to 1128 rpm for high range motor drive All other rpms require a field supplied drive 2 Maximum continuous bhp is 0 85 for low range motor drive and 0 85 for high...
Страница 25: ...hase and 2 40 3 phase for high range motor drive 3 See page 35 for General Fan Performance Notes AIRFLOW Cfm 1200 1300 1400 1500 1600 1700 1800 1900 2000 Rpm 520 545 570 596 623 65O 677 705 734 Table...
Страница 26: ...ingle phase and 2 40 3 phase for high range motor drive 3 See page 35 for General Fan Performance Notes Bhp AIRFLOW Cfm 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 Table 13 Fan 0 2 Bpm Bhp...
Страница 27: ...range motor drive and 1 60 single phase and 2 40 3 phase for high range motor drive 3 See page 35 for General Fan Performance Notes Table 15 Fan Performance 48PGD L07 Vertical Units AVAILABLE EXTERNAL...
Страница 28: ...ntinuous bhp is 2 40 for low range motor drive and 3 10 for high range motor drive 3 See page 35 for General Fan Performance Notes AIRFLOW Cfm Rpm 1800 719 1900 749 2000 780 2100 812 2200 844 2300 876...
Страница 29: ...n 422 430 437 446 454 463 473 482 492 503 513 524 535 0 2 Bhp 0 08 0 09 0 10 0 11 0 12 0 13 0 14 0 15 0 16 0 18 0 19 0 21 0 23 Bprn 552 557 562 568 573 58O 586 593 601 6O8 616 624 633 AVAILABLE EXTERN...
Страница 30: ...ge motor drive and 0 85 for high range motor drive 3 See page 35 for General Fan Performance Notes Bhp Table 21 Fan Performance 48PGF N04 Horizontal Units AIRFLOW Cfm 900 950 1000 1050 1100 1150 1200...
Страница 31: ...gle phase and 2 40 3 phase for high range motor drive 3 See page 35 for General Fan Performance Notes AIRFLOW Cfm 1200 1300 1400 1500 1600 1700 1800 1900 2000 Rpm 443 463 485 5O8 532 558 584 611 639 T...
Страница 32: ...an Performance 48PGD L06 Horizontal Units AIRFLOW Cfm 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 0 2 Bpm Bhp Bpm 521 0 22 628 546 0 25 649 572 0 30 671 599 0 35 695 627 0 40 719 655 0 46 7...
Страница 33: ...phase and 2 40 3 phase for high range motor drive 3 See page 35 for General Fan Performance Notes AIRFLOW Cfm 1500 1600 1700 1800 1900 2000 2100 2200 2300 2400 2500 Rpm 551 579 6O8 638 668 700 732 76...
Страница 34: ...motor drive and 3 10 for high range motor drive 3 See page 35 for General Fan Performance Notes Bhp AIRFLOW Cfm Rpm 1800 633 1900 663 2000 694 2100 725 2200 757 2300 789 2400 822 2500 855 2600 889 270...
Страница 35: ...otor drive range is 796 to 1128 rpm for low range motor drive and 1150 to 1438 rpm for high range motor drive All other rpms require a field supplied drive 2 Maximum continuous bhp is 2 40 for low ran...
Страница 36: ...E576 0 82 3 7 4 2 NOTES 1 Extensive motor and electrical testing ensures that the motors can be utilized with confidence up to the maximum applied bhp watts and amps Using the fan motor up to the maxi...
Страница 37: ...ray nozzle Disconnect gas piping from unit when pressure testing at pressure greater than 0 5 psig Pressures greater than 0 5 psig will cause gas valve damage lesulting in hguzardous condition If gas...
Страница 38: ...er wheel every fall and periodically during heating season For the fil st heating season inspect blower wheel bi monthly to deter mine proper cleaning frequency To inspect blower wheel open heat secti...
Страница 39: ...y set for speed shown in Table 33 To change fan speeds 1 Shut off unit power supply 2 Loosen nuts on the 4 carriage bolts in the mounting base Using adjusting bolts and plate slide motor find remove b...
Страница 40: ...is listed on unit nameplate Refer to Carder GTAC II Module 5 Charging Recovery Recycling and Reclmnation section for chtuging methods and procedures Unit panels must be in place when unit is operating...
Страница 41: ...II I I IIIIIII IIIIIIILZIIIIIIL JJ_ 1 1 J_JJ_ll I_move Charge If _low the Curve 150 200 250 300 350 400 450 500 550 600 Compressor Discharge Pressure psig Fig 33 Charging Chart 48PG05 FIA10A REFRIGERA...
Страница 42: ...et main gas v_dve to ON position 5 Set thermostat at setting to call for heat 6 Remove screw cap covering legulator adjustment screw See Fig 36 7 Turn adjustment screw clockwise to increase pressure o...
Страница 43: ...remain energized until manually reset Complessor Lockout CLO Device 3 Phase Units Only The CLO prevents automatic recycling of the compressor as safety controls reset If the high pressure switch low p...
Страница 44: ...I I Fig 38 Typical Low Voltage Control Schematic I c cat F I c PLs _ sT_vo_ Y c A1 tB_ JtO t_ CCHR 104 07 ONLy CLOA_ CBt _CLm_ CC_r _C BI CBI E O _q 2 2 1 _J tco_ 44...
Страница 45: ...oHout Switch SAT Supply Air Temperature TB Terminal Block TO Thermostat Cooling TH Thermostat Heating TRAN Transformer W AT With Auxiliary Trip CAI CLO AI ONLY CCHR _ BLR vv_ CCHAI IFC BLK YEL IFM 05...
Страница 46: ...cling Low refrigerant charge Compressor valves leaking Restriction in liquid tube High heat load Compressor valves leaking Refrigerant overcharged Dirty air filter Low refrigerant charge Metering devi...
Страница 47: ...heating Inducer sense normal or Inducer sense On when heat call Off or inducer sense If heat on gas valve Off and heat call W Off Off when heat call On Check wiring voltage and eper inducer On ation...
Страница 48: ...mately 90 The actuator should remain in position 5 Turn the DCV set point potentiometer CW until the DCV LED turns off The DCV LED should turn off when the potentiometer is approximately 9 v The actua...
Страница 49: ...ion will be reset if all three phases are restored in a phase loss event PHASE LOSS PROTECTION If the reveLse rotation bomd senses any one of the three phase inputs has no AC volt age file relay will...
Страница 50: ...ion Manufacturer reserves the right to discontinue or change at any time specifications or designs without notice and without incurring obligations PC 111 Catalog No 534 80209 Printed in U S A Form 48...
Страница 51: ...TION VERIFY INSTALLATION OF THERMOSTAT VERIFY THAT CRANKCASE HEATERS HAVE BEEN ENERGIZED FOR AT LEAST 24 HOURS II START UP ELECTRICAL SUPPLY VOLTAGE LI L2 L2 L3 L3 LI COMPRESSOR AMPS COMPRESSOR AI SUP...
