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Bryant 558F Air Conditioner User Manual

1. 16 15 Supply voltage 460 89 60 4 Determine heater capacity using multiplication factors table below A BC 464 v AC 455v HEATER ACTUAL HEATER VOLTAGE RATING Average Voltage 297 464 455 vortace 200 208 230 240 440 460 480 575 600 240 0 694 0 751 0 918 1 000 1371 480 626 0 840 0 918 1 000 vg 600 0 840 0 918 1 000 457 NOTE The following equation converts kW of heat energy to Btuh kW x 3 412 Btuh Determine maximum deviation from average voltage EXAMPLE 32 0 kW at 240 v heater on 208 v AB 457 452 5 v BC 464 457 7 v 457 455 2 v Maximum deviation is 7 v Determine percent of voltage imbalance 32 0 751 mult factor 24 0 kW capacity at 208 v 2 7 Voltage Imbalance 100 x 457 1 53 This amount of phase imbalance is satisfactory as it is below the maximum allowable 2 12 Table 2B Electrical Data Units Without Convenience Outlet 558F091 103 121 151 VOLTAGE COMPRESSOR omes IFM RANGE ea IFM TYPE NOMINAL V PH Hz 208 230 3 60 HIGH pee wer oo s ns oo ve TD 5 8 ALT 187 254 2 14 2 14 1 4 5 8 10 6 TD ALT 414 508 2 6 4 42 2 0 7 HIGH TD ALT 2 632 5 2 39 2 1 4 0 7 460 3 60 575 3 60 LEGEND FLA Full Load Amps HACR Heating Air Conditioning and Refrigeration
2. IV operation there must be a thermostat call for the fan G This will move the damper to its mini mum position during the occupied mode Above 50 F supply air temperature the dampers will modu late from 10096 open to the minimum open position From 50 F to 45 F supply air temperature the dampers will main tain at the minimum open position Below 45 F the dampers will be completely shut As the supply air temperature rises the dampers will come back open to the minimum open posi tion oncethe supply air temperature rises to 48 F If optional power exhaust is installed as the outdoor air damper opens and doses the power exhaust fans will be energized and deenergized If field installed accessory CO sensors are connected to the EconoMi er control a demand controlled ventilation strategy will begin to operate As the level in the zone increases above the CO set point the minimum position of the damper will be increased proportionally As the CO level decreases because of the increase in fresh air the outdoor air damper will be proportionally dosed Damper position will follow the higher demand condition from DCV mode or free cooling mode Damper movement from full closed to full open or vice versa will take between 11 2 and 21 minutes If free cooling can be used as determined from the appropri ate changeover command switch dry bulb enthalpy curve differential dry bulb or differential
3. 0 10VDC 4 20MA CONTROLLER CONNECTION FOR ECONOMIZER FACTORY OR FIELD INSTALLED NOTES 1 If any of the original wire furnished must be replaced it must be replaced with type 90 C wire or its equivalent Three phase motors are protected under primary single phasing conditions Use copper conductors only Use copper copper clad aluminum or aluminum conductors For 208 230 3 60 v units TRAN is wired for 230 v unit If unit is to be run with 208 v power supply disconnect BLK wire from 230 v tap RED and connect to 208 v tap BLU Insulate end of 230 v tap SS SS SIS RON SS gt 5 COMPONENT ARRANGEMENT LEGEND Contactor Compressor OFC Outdoor Fan Contactor CAP Capacitor OFM Outdoor Fan Motor Terminal Block CB Circuit Breaker P Plug COMP Compressor Motor PL Plug Assembly Splice EQUIP Equipment QT Quadruple Terminal FPT Freeze Up Protection Thermostat SAT Supply Air Temperature Sensor lice Marked GND Ground TRAN Transformer Splice Marked HC Heater Contactor iri HPS High Pressure Switch gx Field Splice Factory Wiring IFC Indoor Fan Contactor kc um TEN T IFM Indoor Fan Motor Marked Wire Field Control Wiring IFMOVL Indoor Fan Motor Overload Switch a Field Power Wiring IFR Indoor Fan Rela i LPS Low Pressure Switch lt gt Terminal Marked Accessory or Optional Wiring
4. Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm LEGEND NOTES 1 Boldface indicates field supplied drive is required ne T toan 2 Maximum continuous bhp is 3 70 3 See page 33 for general fan performance notes Motor drive range 860 to 1080 rpm All other rpms require field 9 supplied drive 42 Table 19 Fan Performance 558F150 151 Vertical Discharge Units Alternate Motor Belt Drive EXTERNAL STATIC PRESSURE in wg o o o 4 Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg em ee wy a ee Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts LEGEND NOTES ram 1 Boldface indicates field supplied drive is required Bhp gt 2 Maximum continuous bhp is 5 25 3 See page 33 for general fan performance notes Motor drive range 830 to 1130 rpm All other rpms require field 9 supplied drive Table 20 Fan Performance 558 090 091 Horizontal Discharge Units Standard Motor Belt Drive
5. REPLACEMENT PARTS A complete list of replacement parts may be obtained from any Bryant distributor upon request CIRCUITS 1 AND 2 8 SUCTI ON LINE PRESSURF PSIG a 8 lt 5 2 5 a w 2 2 2 n 30 IITITTITTTITITTTTTTTTTUITTITTITTITTITI 30 40 50 60 70 80 90 SUCTION LINE TEMPERATURE F 1 4 10 16 21 27 32 SUCTION LINE TEMPERATURE C Fig 41 Cooling Charging Chart 558F090 CIRCUIT NO 2 OUTDOOR SUCTION LINE PRESSURE KILOPASCALS 40 50 60 70 SUCTION LINE TEMPERATURE C F 1 4 10 16 21 SUCTION LINE TEMPERATURE C Fig 42 Cooling Charging Chart 558F102 CIRCUIT NO 1 CIRCUIT NO 2 OUTDOOR OUTDOOR N N PRESSURE PSIG PRESSURE PSIG SUCTION LINE SUCTION LINE N e P o N D A M a a 5 tx gt tr a 4 z SUCTION LINE PRESSURE KILOPASCALS 30 40 50 60 70 40 50 60 70 SUCTION LINE TEMPERATURE SUCTION LINE TEMPERATURE F 1 4 10 16 1 4 10 16 21 SUCTION LINE TEMPERATURE C SUCTION LINE TEMPERATURE C Fig 43 Cooling Charging Chart 558F120 CIRCUIT NO 1 ges o SUCTION LINE PRESSURE KILOPASCALS U
6. 9 7 2 221 8 2 720 72 1 191 6 0 gt 53215 350 3715 1100 02 5 uv3H 30 NOIIO3EIO lt 30H 0 934 3uIM Q3av3uHL ALIAVH9 40 H31N32 e 2 10 2 LOY LOONMdHLEEO 3015100 S431714 3187504510 _539V39Vd ANOSS300V_HLIM SYJLIWITIIW NI NI SNOISNAWIG J NYd 55399Y 831714 as 404 0 038 93109 G310N PZS 0 ESZI 91 S 1 8 4 C 1 SEL 008 91 95 82 cl coc 4 4 4 4 O 6 1514855 0 ESZI 9175 1 7 S88 8 2 01 2 vEL rEZ vi 44 021 06 661 Sly 516 1214855 958 91 11 6 2 OSOL 91 5 S E 88 2 1 LLL Gre v6 v9 SA 591 094 501 895 958 SI LL 0501 SI S S CES 8 4 O C 6 804 79 ve 9 6759 Srl L Y SZ 954 1605855 WW NI 14 WW NI 14 WW NI 14 95 81 93 91 81 95 81 925 81 95 81 95 81 M 1 1H913M 2 00 LHOTAM Y3NY09 9 H3NH0OO BD LHOTAM H3NH02 1H9I3M WH3N802 093 ALHJSINONOO3 LING OLS LINA Table 1A Physical Data 558F090 102 120 150 Units 5 8 UNIT SIZE NOMINAL CAPACITY 079 OPERATING WEIGHT Ib Unit AV AI Al Cu Cu Cu IV Roof Curbt COMPRESSOR Quantity No Cylinders per circuit Oil
7. IV control mode before set up of the control Some modes of operation may require different sensors Refer to Table 4 The EconoMi er IV is supplied from the factory with a supply air temperature sensor and an outdoor air temperature sensor This allows for operation of the EconoMi er IV with outdoor air dry bulb changeover control Additional accessories can be added to allow for different types of changeover control and operation of the EconoMi er IV andunit Outdoor Dry Bulb Changeover The standard controller is shipped from the factory config ured for outdoor dry bulb changeover control The outdoor air and supply air temperature sensors are included as standard For this control mode the outdoor temperature is compared to an adjustable set point selected on the control If the outdoor air temperature is above the set point the EconoMi er IV will adjust the outdoor air dampers to minimum position If the outdoor air temperature is below the set point the position of the outdoor air dampers will be controlled to provide free cooling using outdoor air When in this mode the LED next tothe free cooling set point potenti ometer will be on The changeover temperature set point is controlled by the free cooling set point potentiometer located on the control See Fig 28 The scale on the potentiometer is B and D See Fig 29 for the corresponding temperature changeover values Table 4 IV
8. Indoor Evaporator Fan Motor LRA Locked Rotor Amps Minimum Circuit Amps MOCP Maximum Overcurrent Protection National Electrical Code OFM Outdoor Condenser Fan Motor RLA Rated Load Amps Used to determine minimum disconnect per NEC or circuit breaker NEC only ttCompressor no 1 is shown in table 20 46 57 8 230 3 60 Compressor no 2 RLA is 14 1 amps and LRA is 105 amps 0 3 60 Compressor 2 RLA is 7 1 amps and LRA is 55 amps 5 3 60 Compressor no 2 RLA is 6 4 amps and LRA is 40 amps NOTES 1 In compliance with NEC requirements for multimotor and combination load equipment refer to NEC Articles 430 and 440 the overcurrent protective device for the unit shall be fuse or HACR breaker Canadian units may be fuse or circuit breaker 2 Unbalanced 3 Phase Supply Voltage Never operate a motor where a phase imbalance in supply voltage is greater than 2 Use the following formula to determine the percent of voltage imbalance 95 Voltage Imbalance max voltage deviation from average voltage 100 x average voltage Example Supply voltage is 460 3 60 452v 464 455 452 464 455 Average Voltage E E _ 1371 3 457 Determine maximum deviation from average voltage AB 457 452 2 5v BC 464 457 27 v AC 457 455 22 v Maximum deviation is 7 v Determine percent of voltag
9. LSM Limit Switch Motor Terminal Unmarked To indicate common potential only not to represent wiring Fig 49 Typical Unit Wiring Schematic 63 Table 30 Cooling Service Analysis PROBLEM CAUSE REMEDY Compressor and Condenser Fans Will Not start Compressor Will Not Start But Condenser Fans Run Compressor Cycles Other Than Normally Satisfying Thermostat Compressor Operates Continuously Compressor Makes Exces sive Noise 558F 103 121 150 151 Scroll Only Excessive Head Pressure Head Pressure Too Low Excessive Suction Pressure Suction Pressure Too Low Call power company Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker Defective thermostat contactor transformer or Replace component control relay Insufficient line voltage Determine cause and correct Incorrect or 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 Check wiring and repair or replace circuit Compressor motor burned out seized or internal Determine cause Replace compressor overload open Defective run start capacitor overload or start Determine cause and replace relay One leg of 3 phase power dead Replace fuse or reset circuit breaker Determine cause Refrigerant overcharge or undercharge Recover refrigerant evacuate s
10. TOP SIDE gt PANEL OOF CAULK INDOOR N INDOOR COIL COIL ACCESS N ACCESS PANEL PANEL INDOOR COIL ACCESS PANEL HOOD DIVIDER Fig 21 Outdoor Air Hood Construction 221 4 HOOD BOX BRACKET DIVIDER CLEANABLE ALUMINUM BAROMETRIC RELIEF Fig 19 Hood Box Removal FILTER Fig 22 Filter Installation AIR FILTER CLIP FOR OCCUPANCY CONTROL REPLACE JUMPER WITH FIELD SUPPLIED TIME CLOCK PNK VIO BLK ECONOMIZER MOTOR FIELD ACCESSORY REMOTE MIN POSITION POT IREMOTE POT 135 Ohm ECONOMISER IV RED BOARD FIELD INSTALLED TAQ SENSOR TAG SSS ENTHALPY SENSOR RED FIELD ACCESSORY RAT ENTHALPY SENSOR a 4Vac ul BLK 1 WHT 3 2 UNIT NOT USED elem KF mE a NOT USED YEL LA FIELD SPLICE BLU FIELD SPLICE BRN GRY TO PWR EXHAUST ACCESSORY ORG LEGEND Potentiometer Defaults Settings NOTES DCV Demand Controlled Ventilation Power Exhaust Middle 1 620 ohm 1 watt 5 resist
11. 015 014 016 013 015 013 014 015 014 and 016 013 and 015 460 3 60 575 3 60 E HIGH NONE 018 019 018 and 019 NONE 018 019 018 and 019 NONE 018 019 018 and 019 ioe a 208 230 3 60 187 254 Table 2D Electrical Data Units With Convenience Outlet 558F091 103 121 151 cont SSBF RANGE n OFM ea HEATER ELECTRIC HEAT POWER SUPPLY DISCONNECT SINGLE POINT UNIT Sec MODEL NO BOX P N 208 230 3 60 187 254 SIZE CRHEATER A00 FLA MCA FLA LRA CRSINGLE A00 i 70 70 65 65 364 364 017 7 8 10 4 70 70 65 65 364 364 010 12 0 16 0 70 70 65 65 364 364 012 24 0 32 0 8 1 102 6 11 110 125 94 106 364 364 012 and 017 31 8 42 4 129 7 146 150 150 119 135 364 364 010 and 012 37 6 50 0 149 6 169 150 175 138 156 364 364 NONE 80 80 70 70 383 383 017 21 7 25 0 80 80 70 70 383 383 010 12 0 16 0 33 4 38 5 80 80 70 70 383 383 012 24 0 32 0 66 7 77 0 108 1 120 4 110 125 99 111 383 383 012 and 017 31 8 42 4 88 4 102 0 135 2 151 7 150 175 124 140 383 383 010 and 012 37 6 50 0 104 2 120 3 155 1 174 5 175 175 143 161 383 383 NONE 013 014 015 014 and 016 013 and 015 460 3 60 414 508 NONE 013 014 015 014 and 016 013 and 015 NONE STD 575 3 60 518 632
12. 018 LEGEND IMPORTANT If the supply voltage phase imbalance is more than 295 contact your local electric utility 019 018 and 019 company immediately NONE 018 019 018 and 019 FLA FullLoad Amps Z indoor 3 For units with power exhaust If a single power source is to be used size wire to include power LRA Locked Raise Amps exhaust MCA and MOCP Check MCA and MOCP when power exhaust is powered through the Minimum Circuit Amps unit must be in accordance with NEC and or local codes Determine the new MCA including the MOCP Maximum Overcurrent Protection power exhaust using the following formula NEC National Electrical Code MCA New MCA unit only MCA of Power Exhaust OFM Outdoor Condenser Fan Motor For example using a 558FPX091000 unit with MCA 40 1 and MOCP 45 with RLA Rated Load Amps CRPWREXH030A01 power exhaust Used to determine minimum disconnect NEC MCA New 40 1 amps 1 6 amps 41 7 amps Fuse or HACR circuit breaker per NEC If the new MCA does not exceed the published MOCP then MOCP would not change The MOCP Fuse only in this example is 45 amps the MCA New is below 45 therefore the MOCP is acceptable If MCA TtCompressor no 1 is shown in table is larger than the published MOCP raise the MOCP to the next larger size For separate 208 230 3 60 Compressor no 2 RLA is 14 1 amps and LRA is 105 amps power the MOCP
13. 21 16 18 Sz ee gt s 75 i T e S 10 Fig 31 Enthalpy Changeover Set Points 4 7 13 APPROXIMATE DRY BULB TEMPERATURE F C AT 50 RH 2 22 CONTROL CONTROL POINT CURVE APPROX F C gt gt 9 8 2 zi c a a COO OOOOH amp amp 8 a 2 a a 259 EXH gt 28_ Fig 32 EconoMi er IV Control To determine the minimum position setting perform the fol lowing procedure 1 Calculate the appropriate mixed air temperature using the following formula OA RA To x Trx 100 Outdoor Air Temperature OA Percent of Outdoor Air Tr Return Air Temperature RA Percent of Return Air Tm Mixed Air Temperature As an example if local codes require 10 outdoor air during occupied conditions outdoor air temperature is 60 F and return air temperature is 75 60 x 10 75 x 90 73 5 F 2 Disconnect the supply air sensor from terminals T and T1 3 Ensure that the factory installed jumper is in place across terminals P and P1 If remote damper posi tioning is being used make sure that the terminals are wired according to Fig 23 and that the minimum position potentiometer is turned fully clockwise
14. EXTERNAL STATIC PRESSURE in wg 0 045 _ __ Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm LEGEND NOTES 1 Boldface indicates field supplied drive is required ta Fan 2 Maximum continuous bhp is 3 70 3 See page 33 for general fan performance notes Motor drive range 860 to 1080 rpm All other rpms require field pag 9 supplied drive Table 15 Fan Performance 558F120 121 Vertical Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg m RO Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm LEGEND NOTES 1 Boldface indicates field supplied drive is required pnp Rouen D MORE to ran 2 Maximum continuous bhp is 2 40 3 See page 33 for general fan performance notes Motor drive range 685 to 935 rpm All other rpms require field 9 2 supplied drive 39 Table 16 Fan Performance 558F120 121 Vertical Discharge Units Alternate Motor Belt Drive EXTERNAL STATIC PRESSURE in wg eel Bhp
15. Fan Performance 558 090 091 Vertical Discharge Units High Static Motor Belt Drive EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm LEGEND NOTES 1 Boldface indicates field supplied drive is required Bap MGE 2 Maximum continuous bhp is 3 70 3 See page 33 for general fan performance notes Motor drive range 860 to 1080 rpm All other rpms require field PER 3 supplied drive Table 13 Fan Performance 558 102 103 Vertical Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg 02 __ o 2 Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE RAE RR ee wg Aem m se ese mom Sto Sets om o D mnes 924 928 2131 933 2174 LEGEND NOTES 1 Boldface indicates field supplied drive is required P eu Wet MGE 2 Maximum continuous bhp is 2 40 3 See page 33 for general fan performance notes Motor drive range 685 to 935 rpm All other rpms require field PUR 9 supplied drive 37 Table 14 Fan Performance 558F102 103 Vertical Discharge Units High Static Motor Belt Drive
16. High Static 60 Fan Shaft Diameter at Pulley in 1 HIGH PRESSURE SWITCH psig Standard Compressor 450 50 500 50 Internal Relief Differential Cutout 428 428 Reset Auto 320 320 LOW PRESSURE SWITCH psig Cutout Reset Auto FREEZE PROTECTION THERMOSTAT F Opens 30 gt 5 Closes 45 5 OUTDOOR AIR INLET SCREENS Cleanable Screen size and quantity varies by option selected RETURN AIR FILTERS Throwaway Quantity Size in 4 16 20x2 4 16 20 2 4 20 x 20 x2 4 20 x 20 x 2 LEGEND Evaporator coil fin material condenser coil fin material Contact your local Bryant repre Al Aluminum sentative for details about coated fins Bhp Brake Horsepower TWeight of 14 in roof curb Cu Copper NOTE High static motor not available on size 150 and 151 units 8 V STEP 5 MAKE ELECTRICAL CONNECTIONS N WARNING Unit cabinet must have an uninter rupted unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur This ground may consist of electrical wire connected to unit ground lug in control compartment or conduit approved for electrical ground when installed in accordance with NEC National Electrical Code ANSI NFPA American National Standards Institute National Fire Protection Association latest edition and local electrical codes Failure to follow this warning could result in the installer being liable for personal injury of others A Field Power S
17. 1 1138 OZE TWOILYSA 8 9 0 1 9NIN3d0 HIV 1134 0 79 1102 1 S 0 uo1vuodvA3 D 8 H3NHOO 1621 V 334309 43039078 8 1 0 Al W3 IWONOO3 4 595 71715 38IM NO 9 0 H3MOd N04 v l 1 30 v E Y3H113 193135 578 L xW3MOd 2000 19 11 r 821 8 1 L H3MOd 100 v E 8 Ave Kn A 2 22118 2 E 3715 1100 02 53215 350 Love 0 1008 4 1882 91 6 0 938 06 GOOH H3 INONOO3 lSnvHX3 W3MOd J3 1WONO23 TANVd 55322 W3ZIWONOO3 U31 1 15201 ee uvay 3015100 _ 1102 YASNIONOD d 3015 1 31 dAL S9 69 11 18 2 S v 9111 91 6 0 LINN 40 WOLLOS 7109 835 30 09 NOI1V201 123 02510 7 21812313 100 320N3 144 5 H3MOd 1151 VIO 2 4 31VSN3ONOO 1 3 310H 9 181 7108109 91313 ZZ vid 8 2 0 310 1404 tv VIO v E 112 100 320N3 ATddNS u3MOd 791 10 2 1 310H 414405 YIMOd 071313 SE vid g E 53715 01123 4 02 5 8 JHL 30 041108 JHL 033 OSL 021 303 10191 0 2 ZOL ONY 060 lt 01 2 1 2 1 SI 11 30 331439 7 21183 JHL 78 WIH3IVW 9 183 02 JOON 9 HO 8 55 12
18. NEC National Electrical Code C amp US MCA New MCA unit only MCA of Power Exhaust OFM Outdoor Condenser Fan Motor For example using a 558FPX091000 unit with MCA 40 1 and MOCP 45 with Rated Load Amps CRPWREXH030A01 power exhaust MCA New 40 1 amps 1 6 amps 41 7 amps If the new MCA does not exceed the published MOCP then MOCP would not change The MOCP in this example is 45 amps the MCA New is below 45 therefore the MOCP is acceptable If MCA New is larger than the published MOCP raise the MOCP to the next larger size For separate power the MOCP for the power exhaust will be 15 amps per POWER EXHAUST PART NO NEC MCA MCA MCA 230v 460v 575v CRPWREXH021A01 N 3 N NA 93 Used to determine minimum disconnect per NEC TFuse or HACR circuit breaker per NEC Fuse only ttCompressor no 1 is shown in table 208 230 3 60 Compressor no 2 RLA is 14 1 amps and LRA is 105 amps 460 3 60 Compressor no 2 RLA is 7 1 amps and LRA is 55 amps 575 3 60 Compressor 2 RLA is 6 4 amps and LRA is 40 amps NOTES 1 In compliance with NEC requirements for multimotor and combination load equipment refer to NEC Articles 430 and 440 the overcurrent protective device for the unit shall be fuse or HACR breaker Canadian units may be fuse or circuit breaker 2 Unbalanced 3 Phase Supply Voltage Never operate a motor where a phase imbalance in supply voltage is greater than 2 Use
19. Parking Air Intakes Loading Docks Proportional LEGEND ppm Parts Per Million 4 20 mA Economizer Health amp Safety Proportional 0 10V 0 10V 4 20 mA 0 2000 STEP 7 ADJUST EVAPORATOR FAN SPEED Adjust evaporator fan speed to meet jobsite requirements Table 6 shows fan rpm at motor pulley settings Table 7 shows motor efficiencies and Table 8 gives accessory static pressure drop Table 9 shows motor performance Refer to Tables 10 29 to determine fan speed settings Fan motor pul leys are factory set for speed shown in Tables 1A and 1B To change fan speed 1 Shut off unit power supply and install lockout tag 2 Loosen belt by loosening fan motor mounting plate nuts see Fig 34 and 35 3 Loosen movable pulley flange setscrew see Fig 36 4 Screw movable flange toward fixed flange to increase speed and away from fixed flange to decrease fan speed Increasing fan speed increases load on motor Do not exceed maximum speed specified in Tables 1A and 1B 5 Set movable flange at nearest flat of pulley hub and tighten setscrew see Tables 1A and 1B for speed change for each full turn of pulley flange align fan and motor pulleys 1 Loosen fan pulley setscrews 2 Slide fan pulley along fan shaft 3 Make angular alignment by loosening motor from mounting plate To adjust belt tension see Fig 34 and 35 1 Loosen fan motor mounting plate nuts 2 Units 090
20. include power exhaust MCA and MOCP Check MCA and MOCP when power exhaust is powered through the unit must be in accordance with NEC and or local codes Determine the new MCA including the power exhaust using the following formula MCA New MCA unit only MCA of Power Exhaust For example using a 558FPX091000 unit with MCA CRPWREXHO030A01 power exhaust MCA New 40 1 amps 1 6 amps 41 7 amps If the new MCA does not exceed the published MOCP then MOCP would not change The MOCP in this example is 45 amps the MCA New is below 45 therefore the MOCP is acceptable If MCA is larger than the published MOCP raise the MOCP to the next larger size For separate power the MOCP for the power exhaust will be 15 amps per NEC PART NO 230 v 460 v 575 v cnPwaExHwnao WA NA 5 CRPWREXHO28AO1 CRPWREXHO029A01 CRPWREXHO30A01 Determine heater capacity using multiplication factors table below 40 1 and MOCP 45 with MOCP for separate power source POWER EXHAUST HEATER RATING VOLTAGE ACTUAL HEATER VOLTAGE 200 240 aso aso sso 575 eoo 694 0 751 918 0 626 0 840 0 918 NOTE The following equation converts kW of heat energy to Btuh kW x 3 412 Btuh 240 480 600 EXAMPLE 32 0 kW at 240 v heater on 208 v 32 0 751 mult factor 24 0 kW capacity at 208 v Table 2B Electrical Data Units Without Convenience Outlet
21. 014 and 016 NONE 016 013 HIGH 014 015 014 and 016 575 3 60 Ege HIGH LEGEND IMPORTANT If the supply voltage phase imbalance is more than 2 contact your local electric utility company immediately 460 3 60 014 015 014 016 FLA Amps indoor Evat 3 For units with power exhaust If a single power source is to be used size wire to include power LRA Locked ROT Amps exhaust MCA and MOCP Check MCA and MOCP when power exhaust is powered through the MCA Minimum Circuit bes 5 unit must be in accordance with NEC and or local codes Determine the new MCA including the MOCP Maximum Protection power exhaust using the following formula NEC National Electrical Code MCA New MCA unit only MCA of Power Exhaust OFM Outdoor Condenser Fan Motor For example using a 558FPX091000 unit with MCA 40 1 and MOCP 45 with RLA Rated Load Amps CRPWREXH030A01 power exhaust 4 MCA New 40 1 amps 1 6 amps 41 7 amps Used to det d t NEC 1F se HACR circuit per NEC par If the new MCA does not exceed the published MOCP then MOCP would not change The MOCP Fuse only in this example is 45 amps the MCA New is below 45 therefore the MOCP is acceptable If MCA tCompressor no 1 is shown in table is larger than the published MOCP raise the MOCP to the next larger size For separate 208 230 3 60 Compressor
22. 3 4 ON 10 11 62 Disconnect power at TR and 1 Set enthalpy potentiometer to previous setting Set DCV maximum position potentiometer to previ OUS setting Set minimum position DCV set point and exhaust potentiometers to previous settings Remove 620 ohm resistor from terminals Sa and Remove 1 2 kilo ohm checkout resistor from termi nals So and If used reconnect sensor from termi nals So and Remove jumper from TR to N Remove jumper from TR to 1 Remove 5 6 kilo ohm resistor from T and T1 Recon nect wires at T and T1 Remove jumper from P to P1 Reconnect device at P and P1 Apply power 24 vac to terminals TR and TR1 EQUIP GND RELOCATE TO 525 11 S SINGLE POINT BOX WHEN ELECTRIC HEAT OPTION 15 USED 5 eT USED WITH ELECTRIC HEAT BLK OPTION ONLY FOR ALL 208 230 HEATER OPTIONS WITH 17 0 TO 33 0KW YEL COMP 1 BLU 8L MAXIMUM WIRE USED WITH SEE NOTE 3 SITES DC ANS ELECTRIC HEAT OPTIONS SEE NOTE 4 UP TO 17 0 KW ON POWER 2 ON 12 1 2 TON UNITS PIGTAILS USED WITH T ELECTRIC HEAT RED 1 OPTION ONLY FOR ALL 208 230V FIELD TALI En ATS Kern BRN COMP 2 HEATER OPTIONS UP TO 17 0 KW POWER 7 1 2 8 1 2 AND Th 10 TON UNITS FOR ALL 460V HTR aber RR OPTIONS UP TO THD SEE NOT
23. 32 0 kW at 240 v heater on 208 v 32 0 751 mult factor 24 0 kW capacity at 208 v Table 2 Electrical Data Units With Convenience Outlet 558F090 102 120 150 cont VOLTAGE COMPRESSOR NOMINAL IFM RANGE ea wer ma oo o Std 208 230 3 60 2 1 4 1 4 15 0 V Ph Hz i 460 3 60 414 508 10 4 73 0 2 1 4 0 7 575 3 60 518 632 8 3 58 4 2 1 4 0 7 ELECTRIC POWER DISCONNECT HEAT SUPPLY SIZE 71 27 712 80 80 747 74 78104 217 250 71 2 712 80 80 74 74 12 0160 334 38 5 71 2 712 80 80 74 74 387 387 24 0 32 0 66 7 77 0 101 6 114 5 110 125 94 106 31 8424 884 1020 1287 1458 150 150 119 135 37 6 50 0 1042 1203 148 5 138 5 150 150 138 156 gt 75 6 75 6 90 80 79 79 7 8 10 4 21 7 25 0 75 6 75 6 90 80 79 79 12 0 16 0 33 4 38 5 75 6 75 6 90 80 79 79 410 410 24 0 32 0 66 7 77 0 107 1 120 0 110 125 99 111 31 8 42 4 88 4 102 0 134 2 151 3 150 175 124 140 37 6 50 0 104 2 120 3 154 0 144 0 175 175 143 161 195 LEGEND IMPORTANT If the supply voltage phase imbalance is more than 2 contact your local electric FLA Full Load Amps HACR IFM Indoor Evaporator Fan Motor LRA Locked Rotor Amps Minimum Circuit Amps MOCP Maximum Overcurrent Protection C US NEC National Electrical Code OFM Outdoor Condenser Fan Motor RLA Rated Load Amps Used to determine mini
24. 5131 0 4 9 16 CINSIDENy 115 52 i SUPPLY AIR RETURN Al VIEW AS 0 2 15 16 1751 Q S HEAD OF BOLT TO BE ON INSIDE OF FLANGE dm 07 1 7 125 48 6 6 119811 gt 47521 3 47 12641 NOTE CAMBRIDGEPORT SURE LOCK CORNER 1761 FASTENING DEVICE IS ACCEPTABLE T VIEW ALTERNATE CONSTRUCTION ALL CORNERS SEE VIEW ge Fig 2 Roof Curb Details MAXIMUM ALLOWABLE DIFFERENCE in Fig 3 Unit Leveling Tolerance HORIZONTAL DRAIN OUTLET DRAIN PLUG NOTE Drain plug is shown in factory installed position Fig 4 Condensate Drain Connection Side View MINIMUM PITCH ONE IN PER 10 FT OF LINE TO ROOF DRAIN DRAIN PLUG NOTE Trap should be deep enough to offset maximum unit static differ ence A 4 in trap is recommended Fig 5 Condensate Drain Piping Details SECURE SEAL STRIPS BEFORE PLACING UNIT ON ROOF CURB 36 54 914 1371 SEE DETAIL 5 1 Dimension is in millimeters 2 Hook rigging shackles through holes in base rail as shown in detail A Holes in base rails are centered around the unit center of grav ity Use wooden top skid when rigging to prevent rigging straps from damaging unit Unit weights do not include economizer See Tables 1A and 1B for unit weight of economize
25. 55 4 50 60 45 51 229 229 ane 18 6 24 8 7l 59 71 9 81 8 80 90 66 75 24 0 32 0 90 6 103 5 100 110 83 95 31 8 42 4 117 7 34 8 125 150 108 124 205 230 3 00 i i 44 9 44 9 50 50 48 48 7 8104 21 7 25 0 44 9 449 50 50 48 48 12 016 0 33 4 38 5 54 9 61 4 60 70 18 6 24 8 51 7 59 7 77 9 87 8 80 90 721 81 73 273 24 0 32 0 66 7 77 0 96 6 109 5 100 110 89 101 31 8 42 4 88 4 102 0 123 7 1408 125 150 114 129 460 3 60 Std and 575 3 60 Alt 6 44 50 50 47 47 7 8 10 4 7 25 6 44 50 50 47 47 12 0160 4 38 9 55 50 60 47 51 18 6 24 8 80 90 66 75 321 321 24 0 32 0 100 110 83 95 31 8424 88 4 102 0 117 7 1348 125 150 108 124 208 230 3 60 d 49 4 49 4 60 60 52 52 7 8 10 4 21 7 25 0 49 4 49 4 60 60 52 52 High 12 0 16 0 33 4 38 5 54 9 61 4 60 70 52 56 365 365 9 18 6 24 8 51 7 59 7 77 9 87 8 80 90 72 81 460 3 60 l Std 24 0 32 0 66 7 77 0 96 6 109 5 100 110 89 101 31 8 42 4 88 4 102 0 123 7 140 8 125 150 114 129 Std 575 3 60 518 E 10 Table 2A Electrical Data Units Without Convenience Outlet 558F090 102 120 150 cont VOLTAGE OFM ELECTRIC POWER DISCONNECT RANGE ea HEAT SUPPLY SIZE 43 1 43 50 50 45 45 21 7 25 43 1 43 50 50 45 45 33 4 48 9 55 60 60 45 51 307 307 326 326 374 374 COMPRESSOR NOMINAL ea V Ph Hz ov oo
26. 558F091 103 121 151 cont 558 Nominal iFM VOLTAGE Bu Cod ELECTRIC HEAT POWER SUPPLY p SINGLE POINT unit NOMINAI MODEL NO BOX P N Bar PAPE ine ent crc NONE 50 50 46 46 272 272 017 7 8 10 4 E 50 50 46 46 272 272 58 010 12 0 16 0 B 50 60 46 51 272 272 011 18 6 24 8 E 80 90 66 75 272 272 012 24 0 32 0 100 110 83 95 272 272 208 230 3 60 17 3tt 1208 2 y 14 012 and 017 31 8 42 4 i 125 150 108 124 272 272 2 60 60 52 52 316 316 017 7 8 10 4 3 E 60 60 52 52 316 316 10 6 010 12 0 16 0 i 60 70 52 56 316 316 5 011 18 6 24 8 A E 80 90 72 81 316 316 012 24 0 32 0 i 100 110 89 101 316 316 012 and 017 31 8 42 4 125 150 114 129 316 316 460 3 60 NONE 016 013 014 015 014 and 016 7 9 70 tt tt NONE 016 013 014 015 014 and 016 575 3 60 1 22 42 5 544 sott 0 7 19 1 24 44 208 230 3 60 44 6 44 6 297 297 017 7 8 10 4 21 7 25 0 44 6 44 6 297 297 125 i 010 12 0 16 0 33 4 38 5 48 9 55 4 297 297 012 24 0 32 0 66 7 77 0 90 6 103 5 100 110 297 297 012 and 017 31 8 42 4 88 4 102 0 117 7 134 8 125 150 108 124 297 297 010 and 012 37 6 50 0 104 2 120 3 137 5 157 6 150 175 127 145 297 297 NONE 1 1 46 3 46 3 316 316 017 7 8 10 4 21 7 25 0 46 3 46 3
27. Free Cooling LED Off off on of position and DCV maximum closed and DCV maximum Low On Off Modulating Modulatingt tt fon MO e uu Men db o the set point posi 1288 Seng tie eae DCV and supply air sensor vac Occupied no power Unoccupied Modulation Sake supply air signal signals between closed and either maximum position DCV or fully ttModulation is based on the DCV signal open supply air signal 2 10 VDC ACTUATOR 2 84 Volts Fig 50 IV Functional View Access panels 24 Barometric flow capacity 25 Charging chart refrigerant 58 61 Clearance 2 5 6 sensor Configuration 30 Settings 28 30 Compressor Lubrication 57 Mounting 54 Rotation 54 Condensate drain Cleaning 56 Location 2 4 Condenser coil 7 8 Cleaning 56 Condenser fan 7 8 Adjustment 57 Control circuit Wiring 9 22 Wiring raceway 22 Convenience outlet 22 Demand ventilation control 29 Dimensions 5 6 Ductwork 1 2 23 30 Adjustment 57 Components 24 Control mode 26 Damper movement 29 Inputs and outputs 65 Troubleshooting 61 62 Wiring 25 Electrical connections 9 Electrical data 10 21 Enthalpy changeover set points 28 Evaporator coil 7 8 Cleaning 56 Evaporator fan motor 7 8 32 53
28. Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm LEGEND NOTES zi 1 Boldface indicates field supplied drive is required pnp tern 2 Maximum continuous bhp is 2 90 3 See page 33 for general fan performance notes Motor drive range 835 to 1085 rpm All other rpms require field PAM 9 supplied drive Table 17 Fan Performance 558F120 121 Vertical Discharge Units High Static Motor Belt Drive EXTERNAL STATIC PRESSURE in wg bloom cn _ 72 5 j Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg ese ee n es oe Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm LEGEND NOTES 1 Boldface indicates field supplied drive is required s OU WERE UMOR S to Fan 2 Maximum continuous bhp is 5 25 3 See page 33 for general fan performance notes Motor drive range 830 to 1130 rpm All other rpms require field 9 supplied drive 41 Table 18 Fan Performance 558F150 151 Vertical Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg tst
29. a negative condition should not exceed 0 30 in wg with economizer or 0 45 in wg without economizer STEP 3 INSTALL EXTERNAL TRAP FOR CONDENSATE DRAIN Theunit s 3 4 in condensate drain connections are located on the bottom and side of the unit Unit discharge connections do not determine the use of drain connections either drain connection can be used with vertical or horizontal applications When using the standard side drain connection ensure the plug in the alternate bottom connection in center of pan is tight before installing the unit To use the bottom drain connection for a roof curb installa tion relocate the factory installed plug from the bottom con nection to the side connection See Fig 4 The piping for the condensate drain and external trap can be completed after the unit is in place All units must have an external trap for condensate drain age Install a trap at least 4 in deep and protect against freeze up If a drain line is installed downstream from the external trap pitch the line away from 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 5 The center drain plug looks like a star connection however it can be removed with 1 2 in socket drive extension IV STEP 4 RIG AND PLACE UNIT Inspect unit for transportation damage File any daim with transportation agency Keep unit upright and do not drop Spreader bars are not
30. 60 60 316 316 010 12 0 16 0 33 4 38 5 51 1 57 5 60 60 316 316 012 24 0 32 0 66 7 77 0 92 8 105 6 100 110 316 316 012 and 017 31 8 42 4 88 4 102 0 119 9 136 9 125 150 110 126 316 316 010 012 37 6 50 0 104 2 120 3 139 7 159 7 150 175 128 147 316 316 1 1 53 8 53 8 60 60 364 364 017 7 8 10 4 21 7 25 0 53 8 53 8 60 60 57 57 364 364 010 12 0 16 0 33 4 38 5 60 4 66 9 70 80 57 62 364 364 012 22 9 32 0 66 7 77 0 102 1 115 0 110 125 94 106 364 364 012 and 017 31 8 42 4 88 4 102 0 129 2 146 3 150 150 119 135 364 364 010 and 012 37 6 50 0 104 2 120 3 149 0 169 1 150 175 137 156 364 364 NONE 013 014 015 014 and 016 013 015 013 014 015 014 016 013 015 013 014 015 014 016 013 015 018 019 018 019 018 019 018 019 018 019 018 019 14 Table 2B Electrical Data Units Without Convenience Outlet 558F091 103 121 151 cont 558F VOLTAGE COMPRESSOR OFM ea HEATER ELECTRIC HEAT POWER SUPPLY DISCONNECT SINGLE POINT NOMINAL RANGE ea IFM SIZE UNIT NOMINAL IEM No BOX P N beoe oo Tr vw min et ECEN NONE 1 1 56 2 56 2 70 70 59 59 359 359 017 7 8 10 4 21 7 25 0 56 2 56 2 70 70 59 59 359 359 STD 010 12 0 16 0 33 4 38 5 56 2 61 4
31. 70 70 59 59 359 359 012 24 0 32 0 66 7 77 0 96 6 109 5 100 110 89 101 359 359 012 and 017 31 8 42 4 88 4 102 0 123 7 140 8 125 150 114 129 359 359 208 230 3 60 187 254 2 19 156 2 ty 14 010 and 012 37 6 50 0 104 2 120 3 143 5 163 6 150 175 132 151 359 359 NONE 60 6 60 6 70 70 64 64 378 378 017 7 8 10 4 60 6 60 6 70 70 64 64 378 378 010 12 0 16 0 60 6 66 9 70 80 64 64 378 378 012 24 0 32 0 102 1 115 0 110 125 94 106 378 378 012 and 017 31 8 42 4 88 4 102 0 129 2 146 3 150 150 119 135 378 378 010 and 012 37 6 50 0 104 2 120 3 149 0 169 1 150 175 137 156 378 378 SIZE 018 and 019 NONE 018 019 018 and 019 NONE 013 014 STD 48 015 014 and 016 460 3 60 414 508 2 75 2 14 0 7 913 and 015 013 014 ALT 7 4 015 014 and 016 013 and 015 NONE STD 48 575 3 60 518 632 2 7 4 54 2 4 07 018 019 LEGEND IMPORTANT If the supply voltage phase imbalance is more than 2 contact your local electric utility company immediately FLA Full Load Amps HACR Heating Air Conditioning and Refrigeration i n 2 IFM Indoor Evaporator Fan Motor 3 For units with power exhaust If a single power source is to be used size wire to include power LRA Locked Raise Amps exhaust MCA and MOCP Check MCA and MOCP when power exhaust is powered through the MCA Minimum Circuit Amps unit mus
32. 810 785 760 735 710 65 10210344 1080 1025 1007 988 970 952 933 915 897 122124 935 910 885 835 810 785 760 735 710 685 1085 1060 1035 1010 985 960 935 910 885 860 835 120 121tt 150 151t 1080 1060 1035 1015 990 970 950 925 905 860 Approximate fan rom shown TIndicates standard motor and drive package Indicates alternate drive package only TtIndicates high static motor and drive package Indicates alternate motor and drive package Table 7 Evaporator Fan Motor Efficiency MOTOR EFFICIENCY 558F090 121 558F150 151 NOTE Convert bhp to watts using the following formula bhp 746 watts motor efficiency Table 8 Accessory FIOP Static Pressure in wg iab pa 2250 2500 3000 3500 4000 4500 5000 5500 6000 6250 2 Heater Modules 0 05 0 07 0 09 0 12 0 14 0 16 019 021 020 Vertical EconoMi er 006 0 075 0 115 0 15 0195 025 0 325 Horizontal 00 015 0 275 LEGEND The static pressure must be added to external static pressure The sum and the evaporator entering air cfm should then be used in con ROE esi ae junction with the Fan Performa
33. 911 82 221 26 0514855 8 0 ESZL 91 5 l e 654 872 5 2 vez vll 252 22 021 06 661 51 516 02148656 958 91 11 6 0501 ais 5 elo 8 2 Lll 5 v6 m SZ 591 SpE 092 2014856 958 1711 6 2 0601 91 5 s e 82 8 2 2 oll 9 orl 2 9 5 59 Srl L vE 52 zre 554 0604855 WW NI 14d WW NI 13 NI L 95 81 93 97 81 97 81 94 8 NE 1H913M H3NHO2K0 1H913M LHO13M YSNYOI C LHOI3M YSNYOI nS EO a LINA LGL LZL 0L L60418SS suoisueuig eseg g SLVSN30NO9 015 d 0133 Alddns TANVd JO 510 44113448 91313 03 8 2 3015100 770 1821 91 11 5 01 222 07 Y LOL 7 3015100 EX TWLNOZIYOH SNIN3d0 uiv Adans WLNOZ ONIN3dO 5831114 318 5045100 THNVd 55320V 831714 OZE 1612 8 9 0 1 Il 91 8 2 2 CLOLI S81 S38 TWONO23 a v7 0 91 5 2 0 WOTLYSA 00 01 0 2 H3NuOO BEL INOS 539V d 8 dAl 25 v l 2 0 51015 30081 2303 TANVd 55322 1V3H 21419313 ONY 83 018 YOLOW 000 1 TANVd 55322 H0S53HdWOO 8 1
34. HO GOOM 530073 31811508402 Q3TIVISNI 38 AVW SLINA 72 12 12 ON 53811033 30 21 8 HO 30 3 318vAOW3H V gt 05 S310N NI 031 15 SY 110 YASNAGNOD 303 SONVYVAID 40 NOIId3OX3 3Hl HLI 0350 SI NIVHO 31VSN3QNO2 3LVNYSL TV 3Hl N3HM S3HONI 0 NYNLSY TWLNOZIYOH 6 O3N 43 NI 3015 S329vduns 030 0089 STIVM 313H2NOO HO 22078 LINN N33M138 79 OJN H3d NI SE 3015 10H1NO2 S32vJuns ONY LINN N33M138 O3N NI 3015 10HINOO SLINA N33M138 NOI 1VH3d0 3 u35N3Q0NOO 34034 JYNSSY Ol S3HONI OS OV3HU3AO 79 IVNOILdO SI 12 434339 9 11139 3015 YSHLO SSHONI 3015 3NO S3HONI SE MOTA XIV 334044 804 1102 835 30 02 74 71004 1 303 0 1200 Ol 3ONVHY3IO HONI 21812313 SLINN 39HVHOSIQ 1 1 0271 0 NO S3HONI 0 8802 5 LON N3HM 532 4805 31811508402 Ol 01108 79 CIIVA3Ud 9 NINO SYN 3003 3055399 01 03 2 11 38 Ol AYOMLONG 7 4014 JO 01123810 E ALIAVH9 JO 8 9 e 5831214 371904510 SH313AIT1IW NI 3UV 2 NI SNOISN3HIQ 3NVd SS322V 331113 1YVHO 83 04 WO1108 6310N 8 0 eszi 31 8 t v 8 6 8 2 2 1 sei 00
35. If damaged during shipping and handling carefully straighten fins with a fin comb 4 Verify the following conditions a Makesurethat condenser fan blade is positioned correctly in fan orifice Blades should dear fan motor and fan orificering b Make sure that air filters are in place See Tables 1A and 1B Do not operate unit without return air filters c Make sure that the condensate drain pan and trap are filled with water to ensure proper drainage d Make sure that all tools and miscellaneous loose parts have been removed sure outdoor air inlet screens are in place 5 Compressors are internally spring mounted Do not loosen or remove compressor holddown bolts 6 Each unit system has 3 Schrader type service ports one on the suction line one on the liquid line and one on the compressor discharge line Be sure that caps on the ports are tight 7 Ensure electrical wires do not make contact with refrigerant lines START UP UNIT PREPARATION Make sure that unit has been installed in accordance with these installation instructions and applicable codes Ensure Start Up Checklist on back page of booklet is completely filled out RETURN AIR FILTERS Make sure correct air filters are installed in unit see Tables 1A and 1B Do not operate unit without return air filters Ill OUTDOOR AIR INLET SCREENS Outdoor air inlet screen s must be in place before operating unit IV COMPRESSOR MOUN
36. Lubrication 67 Motor 33 Performance 34 53 Pulley adjustment 37 Pulley setting 7 8 32 Speed 7 8 Factory installed options Convenience outlet 22 IV 23 30 Manual outdoor air damper 22 Filter Cleaning 56 Installation 24 Size 78 Freeze protection thermostat 7 8 58 High flow valves 56 High pressure switch 7 8 58 Horizontal units 1 Indoor air quality sensor 27 Low pressure switch 7 8 58 Manual outdoor air damper 22 57 Mounting Compressor 54 Unit 2 Operating sequence Cooling 55 55 55 Outdoor air hood 23 24 Outdoor air temperature sensor 25 Physical data 7 8 Power supply Wiring 9 Pressure drop IV 32 Pressure switches High pressure 7 8 Low pressure 7 8 Pre Start Up 54 INDEX Refrigerant Charge 7 8 57 Type 7 8 Refrigerant service ports 54 Replacement parts 58 Return air filter 7 8 54 Return air temperature sensor 27 Rigging unit 2 4 Roof curb Assembly 1 Dimensions 3 Connector package 3 Leveling tolerances 4 Weight 7 8 Safety considerations 1 Safety relief 55 Service 56 61 Service ports 54 Slab mount Start up 54 55 Start up checklist CL 1 Supply air temperature sensor 25 Thermostat 9 22 Troubleshooting 61 65 Ventilation 55 Weight Corner 5 6 IV 5 8 Unit 5 8 Wiring IV 25 Power connections 9 Thermostat 22 Unit 63 SERVICE TRAINING Packaged Service Training progr
37. enthalpy a call for cool ing Y 1 doses at the thermostat will cause the control to modulate the dampers open to maintain the supply air tem perature set point at 50 to 55 F As the supply air temperature drops below the set point range of 50 to 55 F the control will modulate the outdoor air damp ers dosed to maintain the proper suppl y air temperature D Heating Units With EconoMi er IV When the room temperature calls for heat the heating controls are energized as described in the Heating Units Without EconoMi er IV section When the thermostat is satisfied the economizer damper moves to the minimum position 55 SERVICE N CAUTION When servicing unit shut off all elec trical power to unit to avoid shock hazard or injury from rotating parts CLEANING Inspect unit interior and exterior at the beginning of each heating and cooling season or more frequently as operating conditions require A Evaporator Coil 1 Turn off unit power lockout and tag the disconnect Remove evaporator coil access panel 2 If EconoMi er IV is installed remove economizer disconnecting Molex plug and removing economizer mounting screws 3 Slide filters out of unit 4 Clean coil using a commercial coil deaner or dish washer detergent in a pressurized spray canister Wash both sides of coil and flush with clean water For best results backflush toward return air section to remove foreign material Flush condens
38. ficient airflow across either coil or both coils Proceed as follows 1 57 Remove caps from low pressure and high pressure service fittings Using hoses with valve core depressors attach low pressure and high pressure gage hoses to low pressure and high pressure service fittings respectively Start unit in Cooling Mode and le unit run until sys tem pressures stabilize Measure and record the following a Outdoor ambient air temperature F db b Evaporator inlet air temperature F wb Suction tube temperature F at low side service fitting d Suction low side pressure psig Using Cooling Charging Charts compare outdoor air temperature F db with the suction line pressure psig to determine desired system operating suction line temperature See Fig 41 48 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 tem perature or remove refrigerant if actual temperature is more than 3 F lower than required suction tube temperature FAN HEIGHT 208 230 460 575 Fig 40 Condenser Adjustment To Use Cooling Charging Charts This method is to be used in Cooling mode only Take the out door ambient temperature and read the suct
39. for A C operation Fig 11 Low Voltage Connections With or Without Economizer or Two Position Damper RACEWAY HOLE IN END PANEL HIDDEN Fig 12 Field Control Wiring Raceway STEP 6 ADJUST FACTORY INSTALLED OPTIONS A Manual Outdoor Air Damper The outdoor air hood and screen are attached to the basepan at the bottom of the unit for shipping Assembly 1 Determine quantity of ventilation required for build ing Record amount for use Step 8 2 Remove filter access panel by raising panel and swinging panel outward Panel is now disengaged from track and can be removed No tools are required to remove the filter access panel Remove outdoor air opening panel Save panels and screws See Fig 13 3 Separate hood and screen from basepan by removing the screws and brackets securing them Save all screws and discard brackets 4 Replace outdoor air opening panel 5 Place hood on front of outdoor air opening panel See Fig 14 for hood details Secure top of hood with the 6 screws removed in Step 3 See Fig 15 6 Remove and save 8 screws 4 on each side from sides of the manual outdoor air damper 7 Align screw holes on hood with screw holes on side of manual outdoor air damper See Fig 14 and 15 Secure hood with 8 screws from Step 6 8 Adjust minimum position setting of the damper blade by adjusting the manual outdoor air adjustment screws on the front of the damper blade See Fig 13
40. hae EXAMPLE 32 0 kW at 240 v heater on 208 v Determine maximum deviation from average voltage 32 0 751 mult factor AB 457 452 5 24 0 kW capacity at 208 v 464 457 27 v AC 457 455 22v Maximum deviation is 7 v Determine percent of voltage imbalance Voltage Imbalance 100 x 7 457 1 53 This amount of phase imbalance is satisfactory as it is below the maximum allowable 2 CONDUIT DRIP BOOT BRACKET OP S pO CONDUIT DRIP BOOT Fig 9 Conduit Installation DISCONNECT EMT OR RIGID BRACKETAND CENTER MOUNTING CONDUIT CONDUIT DRIP POST LOCATION FIELD SUPPLIED BOOT IEEE E 5 109 COM COM SINGLE SINGLE CONTROL PRESSOR PRESSOR POINT POINT BOX BOX NO 2 NO 1 BOX MOUNTING SCREW LEGEND EMT Electro Metallic Tubing Fig 10 Typical Component Location THERMOSTAT DIPSWITCH SETTINGS 2 LEGEND Field Wiring COOL STAGE 1 0 HEAT STAGE 1 WMWi 15 WIRE COOL STAGE 2 VN CONNECTIONS HEAT STAGE 2 i LOW VOLTAGE e SECTION 24 VAC HOT E 5 5 24 VAC OUTDOOR AIR 51 SENSOR 52 NOTE Underlined letter indicates active thermostat output when con figured
41. no 2 RLA is 14 1 amps and LRA is 105 amps power the MOCP for the power exhaust will be 15 amps per NEC 460 3 60 Compressor no 2 RLA is 7 1 amps and LRA is 55 amps 575 3 60 Compressor no 2 RLA is 6 4 amps and LRA is 40 amps 3 60 15 6 i i MOCP POWER EXHAUST MCA MCA MCA NOTES m 230v 460v 575v for separate 1 In compliance with NEC requirements for multimotor and combination load equipment refer to NEC power source Articles 430 and 440 the overcurrent protective device for the unit shall be fuse or HACR breaker CRPWREXH021A01 N A Canadian units may be fuse or circuit breaker CRPWREXH022A01 2 Unbalanced 3 Phase Supply Voltage Never operate a motor where a phase imbalance in supply voltage is greater than 2 Use the CRPWREXH023A01 NA 18 following formula to determine the percent of voltage imbalance 15 folowing formula to d CRPWREXHO28A01 17 068 15 CRPWREXH029A01 100 x Max voltage deviation average voltage _ CREWREXHO30A01 Example Supply voltage is 460 3 60 4 Determine heater capacity using multiplication factors table below A BC 452v HEATER ACTUAL HEATER VOLTAGE 452 464 455 200 208 sso 240 aeo aso sso 5 eoo Average Voltage 3 240 694 0 751 918 480 0 626 0 840 0 918 _ 1371 600 3 NOTE The following equation converts kW of
42. ns 4 7 8 10 4 12 0 16 0 24 0 32 0 31 8 42 4 37 6 50 0 0 5 66 7 77 0 90 6 103 100 110 83 95 88 4 102 0 117 734 125 150 108 124 104 2 120 3 137 5 127 150 150 127 145 44 8 44 50 50 47 47 0 44 8 44 50 50 47 47 5 51 1 57 60 60 47 53 0 92 8 105 100 110 85 97 0 119 9 136 125 150 110 126 139 7 129 150 150 128 147 60 60 56 56 0 60 60 56 56 5 60 80 56 62 0 110 125 94 106 0 150 150 119 135 150 175 137 156 21 7 25 33 4 38 66 7 77 88 4 102 104 2 120 3 7 8 10 4 12 0 16 0 24 0 32 0 31 8 42 4 37 6 50 0 21 7 25 33 4 38 66 7 77 88 4 102 104 2 120 3 7 8 10 4 12 0 16 0 24 0 32 0 31 8 42 4 37 6 50 0 149 0 139 0 460 3 60 575 3 60 t 5 8 7 5 5 0 2 6 34 7 4 2 6 14 0 7 3 4 IMPORTANT If the supply voltage phase imbalance is than 2 contact your local electric utility company immediately LEGEND FLA Full Load Amps HACR Heating Air Conditioning and Refrigeration 3 For units with power exhaust If a single power source is to be used size wire to include IFM Indoor Evaporator Fan Motor power exhaust MCA and MOCP Check MCA and MOCP when power exhaust is powered LRA Locked Rotor Amps through the unit must be in accordance with NEC and or local codes Determine the MCA Minimum Circuit OS L new MCA including the power exhaust using the following formula Maximum Overcurrent Protection
43. required if top crating is left on unit Rollers may be used to move unit across a roof Level by using unit frame as a reference See Tables 1A and 1B and Fig 6 for additional information Operating weight is shown in Tables 1A and 1B and Fig 6 Lifting holes are provided in base rails as shown in Fig 6 and 7A and 7B Refer torigging instructions on unit N CAUTION All panels must be in place when rig ging and lifting Unit is not designed for handling by a fork truck Damage to unit may result A Positioning Maintain dearance around and above unit to provide proper airflow and service access See Fig 7A and 7B Position unit on roof curb sothat the following dearances are maintained l 4in clearance between roof curb and base rails on duct end front and back of unit 35 16 clearance between roof curb and condenser fan end of unit see Fig 2 sections A A and C C Do not install unit in an indoor location Do not locate unit air inlet near exhaust vents or other sources of contaminated air Although unit is weatherproof guard against water from higher level runoff and overhangs After unit is in position remove shipping materials and rig ging skid ROOF CURB UNIT ACCESSORY SIZE D ALT CONNECTOR ACCESSORY CRBTMPWROO01 A01 8 4 3 4 19 002 01 19 NPT 11 4 31 7 CRRFCURB003A01 17 2 356 CRRFCURBO04A01 2 0 610 090 151 2 B7 16 1 10
44. the following formula to determine the percent of voltage imbalance 95 Voltage Imbalance MOCP for separate power source max voltage deviation from average voltage 100 average voltage CRPWREXHO30AO1 16 04 15 Example Supply voltagejls 4060 9 60 4 Determine heater capacity using multiplication factors table below Ay BG BC 464 v AC 455v HEATER ACTUAL HEATER VOLTAGE 452 464 455 RATING 200 208 230 240 380 440 460 480 sso 575 eoo Average Voltage 240 0 694 0 751 0 918 1 000 1371 480 0 626 0 840 0 918 1 000 600 0 840 0 918 1 000 457 NOTE The following equation converts kW of heat energy to Btuh kW x 3 412 Btuh Determine maximum deviation from average voltage 457 452 2 5v BC 464 457 7v 457 455 2 v Maximum deviation is 7 v Determine percent of voltage imbalance 7 Voltage Imbalance 100 x 457 1 53 This amount of phase imbalance is satisfactory as it is below the maximum allowable 2 EXAMPLE 32 0 kW at 240 v heater on 208 v 32 0 751 mult factor 24 0 kW capacity at 208 v Table 2A Electrical Data Units Without Convenience Outlet 558F090 102 120 150 cont ELECTRIC POWER DISCONNECT NOMINAL IFM HEAT SUPPLY SIZE 65 2 65 2 80 80 68 68 7 8 10 4 21 7 25 0 65 2 65 2 80 80 68 68 12 0 16 0 33 4 38 5 65 2 65 2 70 70 6
45. to attach the hood sides to the unit SeeFig 21 Remove the shipping tape holding the economizer barometric relief damper in place Insert the hood divider between the hood sides See Fig 21 and 22 Secure hood divider with 2 screws on each hood side The hood divider is also used as the bottom filter rack for the aluminum filter Open the filter dips which are located underneath the hood top Insert the aluminum filter into the bot tom filter rack hood divider Push the filter into position past the open filter clips Close the filter dips tolock the filter into place SeeFig 22 Caulk the ends of the joint between the unit top panel and the hood top See Fig 20 9 Replace the filter access panel 10 Install all EconoMi er accessories EconoMi er IV wiring is shown in Fig 23 Barometric flow capacity is shown in Fig 24 Outdoor air leakage is shown in Fig 25 Return air pressure drop is shown in Fig 26 ECONOMISER IV CONTROLLER Td OUTSIDE AIR HARNESS TEMPERATURE SENSOR LOW AMBIENT SENSOR ACTUATOR d Fig 17 EconoMi er IV Component Locations FILTER ACCESS PANEL NDOOR COIL ACCESS PANEL Fig 18 Typical Access Panel Locations SIDE PANEL
46. 0 1 02 16122 E L 22011 871 41 8 4 CANO 72313 LYVHO 5881 i c 91 4 5 0 u3MOd 401108 33S tp LSZ i 8 4 6 0 ATddNS 9 111 E l v 0 t0993 E 3015 40 310N 3357 7 1 Nvd3Sv NI reps ET 9NIN3dO 5 17 8V6 7 0 1 1155 D OZE WOT LYSA 8 5 0 9NIN3dO MIV 0138 011 14032018 26 1 5 0 8 33 309 8 1 0 26 0 281 8 2 0 4 3015 1831 YANYOD 3915 1331 dAL S91 69 L1 91 6 0 8 2 S v 9111 91 6 v 0 LINN 30 WOLLOB 1102 H3SN30NO2 011 201 193NNO2SIG 1V29IU123 13 100 320N3 ATddNS YAMOd 151 vid z 4 319530409 14 9NINIM 1031409 07313 zz vid 8 2 1 1304 vv 100 320N ATddNS YSMOd 91 Y10 Z 1 10 AlddNS N3MOd 07913 SE vid 878 11 53715 NOILOANNOO Wve 5 8 3Hl JO WOLLOS JHL 151 8 121 303 0191 0 2 501 3 160 303 56 1 2 1 2 1 SI ALIAVH9 30 8 1 32 WOTLYSA JHL 78 TWIYSLVW ONTY
47. 0 2 1 4 16 Table 2 Electrical Data Units With Convenience Outlet 558F090 102 120 150 cont VOLTAGE COMPRESSOR NOMINAL IFM RANGE ea ea nPE um use ma Std 208 230 3 60 Alt 187 254 15 8 130 0 2 1 4 1 4 V Ph Hz 460 3 60 E 575 3 60 ELECTRIC POWER DISCONNECT HEAT SUPPLY SIZE LI RA 4917 491 7 8 10 4 21 7 25 0 49 1 49 1 12 0 16 0 33 4 38 5 53 9 60 4 60 70 24 0 32 0 66 7 77 0 95 6 108 5 100 110 311 311 31 8 42 4 88 4 102 0 122 7 139 8 125 150 37 6 50 0 104 2 120 3 142 5 132 5 150 150 50 8 50 8 7 8 10 4 21 7 25 0 50 8 50 8 60 60 12 0 16 0 33 4 38 5 56 1 62 5 60 60 24 0 32 0 66 7 77 0 97 8 110 6 100 125 91 103 330 330 31 8 42 4 88 4 102 0 124 9 141 9 125 150 116 131 37 6 50 0 104 2 120 3 144 7 134 7 150 150 134 152 58 3 58 3 70 70 7 8 10 4 21 7 25 0 58 3 58 3 70 70 61 61 12 0 16 0 33 4 38 5 65 4 71 9 60 80 61 67 24 0 32 0 66 7 77 0 107 1 120 0 110 125 99 111 378 378 31 8 42 4 88 4 102 0 1342 1513 150 175 124 140 37 6 50 0 104 2 120 3 154 0 144 0 175 175 LEGEND IMPORTANT If the supply voltage phase imbalance is more than 2 contact your local electric utility company immediately FLA Full Load Amps HACR Heating Air Conditioning and Refrigeration IFM Indoor Evaporator Fan Motor LRA Locked Rotor Amps MCA Minimum Circuit Amps MOCP
48. 091 102 103 Slide motor mounting plate away from fan scroll for proper belt tension 1 2 deflection with 8 to 10 Ib of force and tighten mount ing nuts see Fig 34 MOTOR MOUNTING 9 PLATE NUTS Fig 34 Typical Belt Drive Motor Mounting for Sizes 090 091 102 103 31 Units 120 121 150 151 Slide motor mounting plate downward to tighten belt tension 1 2 in deflection with 5 to 10 Ib of force Secure motor mounting plate nuts See Fig 35 Adjust bolt and nut on mounting plate to secure motor in fixed position Check pulley alignment and realign pulleys if necessary MOTOR MOUNTING PLATE NUTS HIDDEN Fig 35 Typical Belt Drive Motor Mounting for Sizes 120 121 150 151 _ STRAIGHT EDGE MUST MOVABLE BE PARALLEL FLANGE WITH BELT MOTOR AND FAN SHAFTS MUST BE ALL PARALLEL SETSCREWS Fig 36 Evaporator Fan Pulley Adjustment FIXED FLANGE SINGLE GROOVE Table 6 Fan Rpm at Motor Pulley Settings UNIT MOTOR PULLEY TURNS OPEN 090 091 840 815 790 765 740 715 690 665 635 615 590 090 091 910 885 860 835 810 785 760 735 710 685 090 911 1080 1025 1007 988 970 952 933 915 897 878 860 1021044 935 910 885 835
49. 15 16 13 4 1 2 1 2 CRETMPWROOSAOT 583 44 5 12 7 12 7 NPT Too curb accessory is shipped CRBTMPWR004A01 gl fer furit disassembled 2 Insulated panels 1 in thick polyurethane foam 13 4 lb density 3 Dimensions in are in millimeters 4 Roof curb 16 gage steel 5 Attach ductwork to curb flanges of duct rest on curb 6 Service clearance 4 ft on each side 7 8 Direction of airflow Connector packages CRBTMPWRO01A01 and 2A01 are for thru the curb gas type Packages CRBTMPWRO003A01 4A01 are for the thru the bottom type gas connections NAIL TYPICAL 4 SIDES ee GASKET SUPPLIED WITH CURB FIELD SUPPLIED COUNTER FLASHING FIELD SUPPLIED ROOFING FELT FIELD SUPPLIED CANT STRIP FIELD SUPPLIED ROOFING MATERIAL FIELD SUPPLIED RETURN AIR OPENING E 2 1 SECTION C C SUPPLY AIR SCALE 1 4 OPENING RIGID INSULATION OPENING FOR BASEPAN FIELD SUPPLIED ENTRY SERVICE SEE NOTE 8 0 0 7 16 111 07 0 7 15 BOLT HEADS 1111 BOLT HEADS a 07 0 7 16 1111 BOLT HEADS s naa 0 2 1 8 BOLT HEADS 4 54 6 1 gt SEE NOTE 2 A A 7 a gt gt J CRW lt gt 17 8 3 16 CINSTDED Oto E gt 17 8 3 15 07 0 7 16 n 4 GAS SERVICE PLATE SEE NOTE 8 0 0 1 4 t7 1 ss Pe
50. 3 Adjust fan height as shown in Fig 40 4 Tighten setscrews 5 Replace condenser fan assembly V MANUAL OUTDOOR AIR DAMPER If outdoor air damper blade adjustment is required see Manual Outdoor Air Damper section on page 22 VI ECONOMIZER ADJUSTMENT Refer to Optional IV section on page 23 Vil REFRIGERANT CHARGE A Checking and Adjusting Refrigerant Charge The refrigerant system is fully charged with R 22 refriger ant tested and factory sealed Unit must operate in Cooling mode a minimum of 10 minutes before checking charge NOTE Adjustment of the refrigerant charge is not required unless the unit is suspected of not having the proper R 22 charge 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 line pressures and outdoor ambient temperatures An accurate superheat thermocouple type or thermistor type thermometer and a gage manifold are required when using the superheat charging method for evaluating the unit charge Do not use mercury or small dial type thermometers because they are not adequate for this type of measurement N CAUTION When evaluating the refrigerant charge an indicated adjustment to the specified fac tory charge must always be very minimal If a substan tial adjustment is indicated abnormal condition exists somewhere in the cooling system such as insuf
51. 320 320 012 017 318424 150 150 119 135 320 320 460 3 60 El HIGH NONE 016 013 26 014 015 79H 014 016 575 3 60 m HIGH NONE 016 013 4 8 014 015 014 and 016 f 1 24 5 544 sott 21 1 26 46 49 4 49 302 302 017 7 8 10 4 21 7 25 0 49 4 49 302 302 010 12 0 16 0 33 4 38 5 55 0 60 302 302 012 24 0 32 0 66 7 77 0 96 6 108 100 110 89 101 302 302 012 and 017 31 8 42 4 88 4 102 0 123 7 140 125 150 114 130 302 302 010 and 012 37 6 50 0 104 2 120 3 143 6 163 150 175 132 151 302 302 NONE 1 1 51 1 51 321 321 017 7 8 10 4 21 7 25 0 51 1 51 60 60 54 54 321 321 010 12 0 16 0 33 4 38 5 57 1 62 60 60 54 58 321 321 012 24 0 32 0 66 7 77 0 98 8 111 100 125 91 103 321 321 012 017 31 8 42 4 88 4 102 0 125 9 142 150 150 116 131 321 321 010 012 37 6 50 0 104 2 120 3 145 7 165 2 150 175 134 152 321 321 1 1 58 6 68 6 70 70 63 63 369 369 017 7 8 10 4 21 7 25 0 58 6 58 6 70 70 63 63 369 369 010 12 0 16 0 33 4 38 5 66 5 72 3 80 80 63 67 369 369 012 22 9 32 0 66 7 77 0 108 1 120 4 110 125 99 111 369 369 012 and 017 31 8 42 4 88 4 102 0 135 2 151 7 150 175 124 140 369 369 010 and 012 37 6 50 0 104 2 120 3 155 1 174 5 175 175 143 161 369 369 NONE 013 014 015 014 and 016 013 015 013 014
52. 4 Connect 24 vac across terminals TR and TR1 5 Carefully adjust the minimum position potentiometer until the measured mixed air temperature matches the calculated value 6 Reconnect the supply air sensor to terminals T and T1 Remote control of the EconoMi er IV damper is desirable when requiring additional temporary ventilation If a field supplied remote potentiometer Honeywell part number 59638 1128 is wired to the EconoMi er IV controller the minimum position of the damper can be controlled from a remote location To control the minimum damper position remotely remove the factory installed jumper on the P and P1 terminals on the EconoMi er IV controller Wire the field supplied poten tiometer to the P and P1 terminals on the EconoMi er IV controller See Fig 32 Damper M ovement Damper movement from full open to full dosed or vice versa takes 21 2 minutes Thermostats The EconoMi er IV control works with conventional thermo stats that have a Y1 cool stage 1 Y2 cool stage 2 W1 heat stage 1 W2 heat stage 2 and G fan The EconoMi er IV control does not support space temperature sensors Connections are made at the thermostat terminal connection board located in the main control box Occupancy Control The factory default configuration for the E IV con trol is occupied mode Occupied status is provided by the black jumper from terminal TR to terminal When unoccu pied mode is
53. 8 68 383 383 24 0 32 0 66 7 77 0 96 6 109 5 100 110 89 101 31 8 42 4 88 4 102 0 123 7 140 8 125 150 114 129 37 6 50 0 104 2 120 3 143 5 133 5 150 150 132 151 208 230 3 60 69 6 69 6 80 80 73 73 7 8 10 4 21 7 25 0 69 6 69 6 80 80 73 73 12 0 16 0 33 4 38 5 69 6 69 6 80 80 73 73 406 406 24 0 32 0 66 7 77 0 102 1 115 0 110 125 94 106 31 8 42 4 88 4 102 0 129 2 146 3 150 150 119 135 37 6 50 0 104 2 120 3 149 0 139 0 150 175 137 156 460 3 60 y 0 7 B 192 03 154 575 3 60 i LEGEND IMPORTANT If the supply voltage phase imbalance is more than 2 contact your local electric utility company immediately FLA FullLoad Amps X HACR Heating Air Conditioning and Refrigeration 3 For units with power exhaust If a single power source is to be used size wire to include Indoor Evaporator Fan Motor power exhaust MCA and MOCP Check MCA and MOCP when power exhaust is powered LRA Locked Rotor Amps through the unit must be in accordance with NEC and or local codes Determine the MAR Minium a pu re L new MCA including the power exhaust using the following formula Maximum Overcurrent Protection NEC National Electrical Code C US MCA New MCA unit only MCA of Power Exhaust OFM Outdoor Condenser Fan Motor For example using a 558FPX091000 unit with MCA 40 1 and MOCP 45 with RLA Rated Load Amps CRPWR
54. 9 supplied drive Table 23 Fan Performance 558F102 103 Horizontal Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg OO 188 27402 2 2 Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg LEGEND NOTES 1 Boldface indicates field supplied drive is required P 2 Maximum continuous bhp is 2 40 3 See page 33 for general fan performance notes Motor drive range 685 to 935 rpm All other rpms require field PR 9 supplied drive 47 Table 24 Fan Performance 558 102 103 Horizontal Discharge Units High Static Motor Belt Drive EXTERNAL STATIC PRESSURE in wg _ __ Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm LEGEND NOTES 1 Boldface indicates field supplied drive is required RU Wes S Meo to Fan 2 Maximum continuous bhp is 3 70 3 See page 33 for general fan performance notes Motor drive range 860 to 1080 rpm All other rpms require field pag 9 supplied drive Table 25 Fan Performance 558F120 121 Horizontal Discharge Un
55. AN WHEEL AND PROPELLER FOR LOCATION IN HOUSING ORIFICE AND SETSCREW TIGHTNESS CHECK PULLEY ALIGNMENT AND BELT TENSION REFER TO INSTALLATION INSTRUCTIONS VERIFY INSTALLATION OF ECONOMISER IV HOOD IF EQUIPPED START UP ELECTRICAL SUPPLY VOLTAGE L1 L2 L2 L3 L3 L1 CIRCUIT 1COMPRESSOR AMPS L1 13 CIRCUIT 2 COMPRESSOR AMPS L1 L2 L3 INDOOR FAN AMPS L1 L2 L3 TEMPERATURES BOTH CIRCUITS OPERATING OUTDOOR AIR TEMPERATURE DB RETURN AIR TEMPERATURE DB WB COOLING SUPPLY AIR DB WB REFRIGERANT CIRCUIT NO 1 CIRCUIT NO 2 REFRIGERANT SUCTION PSIG PSIG REFRIGERANT TEMPERATURE SUCTION F F REFRIGERANT LIQUID LINE PSIG PSIG REFRIGERANT TEMPERATURE LIQUID LINE F F VERIFY REFRIGERANT CHARGE USING COOLING CHARGING CHARTS ON PAGES 58 61 COOLING MODE ONLY VERIFY 3 PHASE SCROLL COMPRESSOR IS ROTATING IN THE CORRECT DIRECTION GENERAL VERIFY ECONOMI ER IV MINIMUM VENT POSITION AND CHANGEOVER SETTINGS ARE CONFIGURED J OB REQUIREMENTS IF EQUIPPED Copyright 2005 Bryant Heating amp Cooling Systems Printed in U S A CL 1 CATALOG NO 04 53558002 01 CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE
56. Copper Tubes Aluminum Lanced Fins Rows Fins in 2 17 2 17 Total Face Area sq ft CONDENSER FAN Propeller Type Nominal Cfm 0 7000 Quantity Diameter Motor Hp Rpm Watts Input Total EVAPORATOR COIL Rows Fins in Total Face Area sq ft EVAPORATOR FAN Centrifugal Type Quantity Size in Std 1 15 x 15 1 Alt High Static 1 15 x 15 Type Drive Std Belt Alt High Static Belt Nominal Cfm 3000 Maximum Continuous Bhp Std 2 40 High Static 3 70 Motor Frame Size Std 56 Alt High Static 56 Std 685 935 860 1080 830 1130 Fan Rpm Range Alt High Static 860 1080 Motor Bearing Type Ball Maximum Allowable Rpm Motor Pulley Pitch Diameter Min Max in Std Alt High Static Nominal Motor Shaft Diameter in Std Alt High Static Fan Pulley Pitch Diameter in Std Alt High Static 4 8 0 Belt Quantity Type Length in Std 1 A 49 1 A 52 Alt 1 46 High Static 1 55 1 46 Pulley Center Line Distance in Std 16 75 19 25 16 75 19 25 15 85 17 50 15 85 17 50 Alt 16 75 19 25 15 85 17 50 15 85 17 50 High Static 16 75 19 25 16 75 19 25 15 85 17 50 Speed Change per Full Turn of Std 50 50 44 Movable Pulley Flange rpm Alt 50 50 High Static 60 60 Movable Pulley Maximum Full Turns Std 5 5 From Closed Position Alt 6 High Static 5 Factory Setting Std 5 5 Alt 5 High Static 5 Factory Speed Setting rpm Std 8 Alt
57. E o 5 u 844 amp 2 8 20 30 40 0 70 SUCTION LINE TEMPERATURE F 1 4 10 16 SUCTION LINE TEMPERATURE C SUCTION LINE PRESSURE KILOPASCALS SUCTION LINE PRESSURE KILOPASCALS N PRESSURE P516 A A NJ N A ul SUCTION LINE o 50 60 70 SUCTION LINE TEMPERATURE F 1 4 10 16 21 SUCTION LINE TEMPERATURE C SUCTION LINE PRESSURE PSIG o 40 0 SUCTION LINE TEMPERATURE F 4 10 16 2 SUCTION LINE TEMPERATURE C Fig 48 Cooling Charging Chart 558F151 TROUBLESHOOTING UNIT TROUBLESHOOTING Refer to Table 30 and Fig 49 for unit troubleshooting information IV TROUBLESHOOTING See Table 31 for IV logic A functional view of the EconoMi er is shown in Fig 50 Typical settings sensor ranges and jumper positions are also shown An EconoMi er IV simulator program is avail able from Bryant to help with EconoMi er IV training and troubleshooting 61 IV Preparation This procedure is used to prepare the IV for troubleshooting No troubleshooting or testing is done by performing the following procedure NOTE This procedure requires a 9 v battery 1 2 kilo ohm resistor and a 5 6 kilo ohm resistor which are not su
58. E 3 SINGLE POINT CONNECTION BOX BLK YEL BRN USED WITH ELECTRIC HEAT BLK OPTION ONLY FIELD LECTRI YEL YEL FOR ALL 460V HEATERS YEL OFM HEATER OPTIONS POWER WITH OVER 34 0 KM d SUPPLY 1 1 MAXIMUM WIRE SIZE 2 0 AWG SEE NOTE 4 BLU x YEL 236 O 3 BLK 150 151 ALT MTR USED WITH SEE DETAIL A FOR ADDITIONAL SINGLEPOINT 0 121 RE MATIG n OPTIONS BLK FOR ALL 208 230V Te 3 DETAIL A WITH OVER 33 0 KW ALTERNATE SINGLE POINT BOX OPTIONS MAXIMUM WIRE SEE HEM ER SCHEMATICS UNIT IS WIRED 230V TAP SIZE 2 0 AMG BLK YEL FOR 208 230V UNITS 1 FOR INTERNAL WIRING AND WIRED TO 460V TAP FOR BREXRER VOLTS HrB PT NO TRIP 1 L ASOV UNITS 24V POTTER amp BRUMFIELD AMPS W28X 1024 3 2 3 2 SINGLE a HEINEMANN ATRPAX de Li CB 014 460 3 60 oF3 7228 41 219 3 2600 486 9 9 15 RED REDO G RED CONNECTION BOARD 3 2 AMPS IFMOVL 2 BLK TB4 on CONNECTION BOARD BRN IFC C2 Vt 8 DRN HCI Vt _ Pan HEATER OR INTERNAL WIRING LECTRIC Vt C TB4 GRN YEL GRA IFC C2 TRAN MEET NE TR t HPS1 BLU E qu OFC C2 BLK a FPT VIO PNK YEL BLU BLK BRN RED GRA ORN PNK ORN
59. EXH030A01 power exhaust Used to determine minimum disconnect per NEC MCA New 40 1 amps 1 6 amps 41 7 amps 1 or HACR circuit breaker NEC If the new MCA does not exceed the published MOCP then MOCP would not change Fuse only The MOCP in this example is 45 amps the MCA New is below 45 therefore the MOCP is ttCompressor no 1 is shown in table acceptable If MCA New is larger than the published MOCP raise the MOCP to the next 208 230 3 60 Compressor no 2 RLA is 14 1 amps and LRA is 105 amps larger size For separate power the MOCP for the power exhaust will be 15 amps per 460 3 60 Compressor no 2 RLA is 7 1 amps and LRA is 55 amps NEC 575 3 60 Compressor 2 RLA is 6 4 amps and LRA is 40 amps NOTES MOCP 1 In compliance with NEC requirements for multimotor and combination load equipment refer POWER EXHAUST 4659 ers for separate to NEC Articles 430 and 440 the overcurrent protective device for the unit shall be fuse or 5 power source HACR breaker Canadian units may be fuse or circuit breaker CRPWREXH021A01 N A N A Fi Navel CRPWREXHO22A01 3 3 Never operate a motor where a phase imbalance in supply voltage is greater than 2 Use a the following formula to determine the percent of voltage imbalance CRPWREXH023A01 N A Voltage Imbalance CRPWREXHO26A01 100x max voltage deviation from average voltage CRPWREXHO029A01 average voltage
60. EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg AIRFLOW LEGEND NOTES 1 Boldface indicates field supplied drive is required Bap 52 2 Maximum continuous bhp is 2 40 3 See page 33 for general fan performance notes Motor drive range 590 to 840 rpm All other rpms require field 9 5 supplied drive Table 21 Fan Performance 558 090 091 Horizontal Discharge Units Alternate Motor Belt Drive EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg AIRFLOW LEGEND NOTES m 1 Boldface indicates field supplied drive is required Bap Paea To rant 2 Maximum continuous bhp is 2 40 3 See page 33 for general fan performance notes Motor drive range 685 to 935 rpm All other rpms require field supplied drive Table 22 Fan Performance 558 090 091 Horizontal Discharge Units High Static Motor Belt Drive EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm LEGEND NOTES E 1 Boldface indicates field supplied drive is required Bap MGE 2 Maximum continuous bhp is 3 70 3 See page 33 for general fan performance notes Motor drive range 860 to 1080 rpm All other rpms require field
61. IZE TYPE FLA eee pe m o 5 Dnm m 46 1 46 1 50 50 48 48 78 104 217 250 46 1 46 1 50 50 48 48 Std 12 0460 334 38 5 53 9 60 4 60 70 51 56 and 18 6 24 8 51 7 59 7 76 9 86 8 80 90 72 81 239 233 24 0 32 0 66 7 77 0 95 6 108 5 100 110 89 101 31 8 424 88 4 102 0 1227 1398 125 150 114 130 208 230 3 60 14 0 2 1 50 9 50 9 60 60 53 53 78 104 217 250 50 9 50 9 60 60 53 53 12 046 0 33 4 385 59 9 66 4 70 70 56 62 6 186 248 517 59 7 82 9 92 8 90 100 77 86 240820 66 7 77 0 1016 1145 110 125 94 106 31 8424 88 4 102 0 128 7 145 8 150 150 119 135 460 3 60 508 64 420 2 Std and 575 3 60 At 632 52 39 0 2 25 34 1 50 25 i 17 1 30 34 1 60 50 6 50 6 7 8 10 4 217 25 0 50 6 50 6 60 60 52 52 120160 33 4 385 53 9 60 4 60 70 52 56 Std 18 6 24 8 51 7 59 7 76 9 86 8 80 90 81 325 325 24 0 32 0 66 7 770 95 6 108 5 100 110 89 101 31 8 424 88 4 102 0 1227 1398 125 150 114 130 208 230 3 60 16 0 1370 2 4 55 4 55 4 60 60 58 58 7 8 10 4 217 250 55 4 55 4 60 60 58 58 TN 12 046 0 33 4 385 59 9 66 4 70 70 58 62 369 369 ig 18 6 24 8 517 59 7 82 9 92 8 90 100 77 86 240820 66 7 77 0 1016 1145 110 125 94 106 31 9 42 4 88 4 102 0 1287 1458 150 150 119 135 460 3 60 508 8 3 2 td 575 3 60 518 632 6 4 58
62. Maximum Overcurrent Protection C US National Electrical Code OFM Outdoor Condenser Fan Motor RLA Rated Load Amps Used to determine minimum disconnect per NEC TFuse or HACR circuit breaker per NEC Fuse only ttCompressor no 1 is shown in table 208 230 3 60 Compressor no 2 RLA is 14 1 amps and LRA is 105 amps 460 3 60 Compressor no 2 RLA is 7 1 amps and LRA is 55 amps 575 3 60 Compressor no 2 RLA is 6 4 amps and LRA is 40 amps NOTES 1 In compliance with NEC requirements for multimotor and combination load equipment refer to NEC Articles 430 and 440 the overcurrent protective device for the unit shall be fuse or HACR breaker Canadian units may be fuse or circuit breaker 2 Unbalanced 3 Phase Supply Voltage Never operate a motor where a phase imbalance in supply voltage is greater than 2 Use the following formula to determine the percent of voltage imbalance 96 Voltage Imbalance max voltage deviation from average voltage 100 average voltage Example Supply voltage is 460 3 60 A BC 452 v 464 455 452 464 455 Average Voltage 3 1371 3 457 Determine maximum deviation from average voltage 457 452 2 5v BC 464 457 27v 457 455 22v Maximum deviation is 7 v Determine percent of voltage imbalance 7 Voltage Imbalance 100 x 457 1 53 This amount of phase imbalance is satisfactory as it is below the ma
63. NS Installation and servicing air conditioning equipment can be hazardous due to system pressure and electrical compo nents Only trained and qualified service personne should install repair or service air conditioning equipment Untrained personnel can perform basic maintenance func tions of deaning coils and filters and replacing filters All other operations should be performed by trained service per sonnel When working 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 doth for unbrazing operations Have fire extinguishers available for all brazing operations N WARNING Before performing service mainte nance operations on unit turn off main power switch to unit and install lockout tag Electrical shock could cause personal injury N CAUTION Ensure voltage listed on unit data plate agrees with electrical supply provided for the unit Cancels 558F 90 3 558F 90 4 9 15 05 INSTALLATION Unit is shipped in the vertical discharge configuration To convert to horizontal configuration remove screws from hor izontal duct opening covers and remove covers Using the same screws install covers on duct openings in basepan of unit with the insulation side down Seals around duct open ings must be tight See Fig 1 Confirm before ins
64. ON On 3 phase scroll compressor units 103 121 150 151 it is important to be certain compressor is rotating in the proper direction To determine whether or not compressor is rotat ingin the proper direction 1 Connect service gages to suction and discharge pres sure fittings 54 2 Energize the compressor 3 The suction pressure should drop and the discharge pressure should rise as is normal on any start up If the suction pressure does not drop the discharge pres sure does not rise to normal levels 1 Note that the evaporator fan is probably also rotating in the wrong direction 2 Turn off power to the unit tag disconnect 3 Reverse any two of the unit power leads 4 Turn on power to the unit The suction and discharge pressure levels should now move totheir normal start up levels NOTE When the compressor is rotating in the wrong direc tion the unit makes an elevated level of noise and does not provide cooling COOLING Tostart unit turn on main power supply Set system selector switch at COOL position and fan switch at AUTO position Adjust thermostat to a setting below room temperature Compressor starts on closure of contactor Check unit charge Refer to Refrigerant Charge section on page 57 Unit must operate a minimum of 10 minutes before adjusting charge Reset thermostat at a position above room temperature Compressor will shut off A To Shut Off Unit Set system select
65. RE PS16 z 559 IE 40 SUCTION LINE PRESSURE KILOPASCALS 8 8 Corre ree TEMPERATURI PERATUR 1 10 16 21 2 32 SUCTION LINE TEMPERATURE C SUCTION LINE TEMPERATURE C Fig 44 Cooling Charging Chart 558F150 59 CIRCUIT 1 CIRCUIT 2 OUTDOOR TEMP O N T ONW 84824140 J o wN SUCTION LINE PRESSURE KILOPASCALS SUCTION LINE PRESSURE PSIG SUCTION LINE PRESSURE KILOPASCALS SUCTION LINE PRESSURE PSIG 20 30 40 50 60 20 30 40 50 60 SUCTION LINE TEMPERATURE SUCTION LINE TEMPERATURE 1 4 10 16 1 4 10 16 SUCTION LINE TEMPERATURE C SUCTION LINE TEMPERATURE C Ep PSIO g PRESSURI N SUCTION LINE wn a lt lt m M 5 2 a 2 E z o 2 20 30 40 5 60 SUCTION LINE TEMPERATURE F 1 4 10 16 SUCTION LINE TEMPERATURE C Fig 46 Cooling Charging Chart 558F103 Circuits 1 and 2 CIRCUIT 1 CIRCUIT 2 OUTDOOR PSIG 5 3 SUCTI ON LINE PRESSUR NJ N e A o SUCTION LINE PRESSURE KILOPASCALS 30 40 50 50 70 SUCTION LINE TEMPERATURE F 1 4 10 16 21 SUCTION LINE TEMPERATURE C a RE PSIG SUCTION LIN
66. SAOD 3008 2 HO HO GOOM SQVW 580014 31811508402 NO Q3TIVISNI 38 AVW SLINN 72 FONVYVATO ON 53310034 3QVOINHVBS HO 3ON3J 318VAOW3H gt S310N NI G3LVLS SV 1102 335 39 09 SHI 804 32ONVuV3 O JHL 30 NOIId3OX3 JHL HLIM 9 0351 SI NIVSO 31VSN3QNOO 1 8 17 N3HM S3HONI NYALSY 14405 7 1 07 1 0 O3N H3d NI 3015 X09 10H1NO9 S3OvJuns 030 0089 YSHLO ANY STIVM 31382NO2 30 22018 ANY LINN N33M138 JIN H3d SE 3015 10 1 02 S3ovJuns LINN N33M138 9 O3N NI 3015 1081 02 N33M138 P H3SN30NOO 334084 SYNSSV Ol S3HONI OS Qv3HH3A0 WNOTIdO SI 3ONVHV3 19 831 389 9NI11139 3015 3Hl H3Hl0 S3HONI ZL 3015 3NO 5951 1 01 21 SSHONT SE MOTA 534044 804 1105 9 1004 1 404 XYOMLONG Ol HONI 1 T 31419973 SLINA J9YYH SIA VINOZINOH NO S3HONI 0 7 aNd ONISN LON S32v Mns 31811508802 Ol 01108 APA 10 Seve 1102 tb brl p E 1 200 19 11 1121051 80 53002 W901 3ONVUV3 O WAWINIW AI 838108023 4 SSA QV NONG ANO BUND 4008 AHOSS32OY 01 Q3HOVIlV OL
67. SET POINT Fig 28 EconoMi er IV Controller Potentiometer and LED Locations Differential Dry Bulb Control For differential dry bulb control the standard outdoor dry bulb sensor is used in conjunction with an additional acces sory dry bulb sensor part number 5 002 00 The accessory sensor must be mounted in the return airstream See Fig 30 Wiring is provided the IV wiring harness See Fig 23 In this mode of operation the outdoor air temperature is compared to the return air temperature and the lower tem perature airstream is used for cooling When using this mode of changeover control turn the enthalpy set point potentiom eter fully clockwise to the D setting See Fig 28 Outdoor Enthalpy Changeover For enthalpy control accessory enthalpy sensor part num 57 78 is required Replace the standard outdoor dry bulb temperature sensor with the accessory enthalpy sensor in the same mounting location See Fig 17 When the outdoor air enthalpy rises above the outdoor enthalpy changeover set point the outdoor air damper moves to its minimum position The outdoor enthalpy changeover set point is set with the outdoor enthalpy set point potentiome ter on the IV controller The set points are C and D See Fig 31 The factory installed 620 ohm jumper must be in place across terminals SR and SR on the EconoMi er controller See Fig 17 a
68. See Fig 23 The outdoor enthalpy changeover set point is set with the outdoor enthalpy set point potentiometer on the E IV controller When using this mode of changeover control turn the enthalpy set point potentiometer fully dockwisetothe D setting Indoor Air Quality IAQ Sensor I nput ThelAQ input can be used for demand control ventilation control based on the level of measured the space or return air duct Mount the accessory sensor according to manufacturer specifications ThelAQ sensor should be wired to the AQ and AQ1 terminals of the controller Adjust the potentiome ters to correspond to the DCV voltage output of the indoor air quality sensor at the user determined set point See Fig 33 If a separate field supplied transformer is used to power the IAQ sensor the sensor must not be grounded or the EconoMi er IV control board will be damaged Exhaust Set Point Adjustment The exhaust set point will determine when the exhaust fan runs based on damper position if accessory power exhaust is installed The set point is modified with the Exhaust Fan Set Point EXH SET potentiometer See Fig 28 The set point represents the damper position above which the exhaust fans will be turned on When there is a call for exhaust the EconoMi er IV controller provides 45 15 second delay before exhaust fan activation to allow the dampers to open This delay allows the damper to reach the
69. Sensor Usage ECONOMISER IV WITH OUTDOOR AIR APPLICATION DRY BULB SENSOR Accessories Required Outdoor Air None The outdoor air dry bulb sensor Dry Bulb is factory installed Differential Dry Bulb CRTEMPSNO002A00 Single Enthalpy Differential Enthalpy CRENTDIF004A00 for DCV Control using a Wall Mounted 33ZCSENCO2 Sensor for DCV Control using a Duct Mounted Sensor CRENTDIF004A00 and CRTEMPSN002A00 accessories are used on many different base units As such these kits may contain parts that will not be needed for installation 33ZCSENCO2 is an accessory sensor 33ZCASPCO2 is an accessory aspirator box required for duct mounted applications TTCRCBDIOXO005A00 is an accessory that contains both 33ZCSENCO2 and 33ZCASPCO2 accessories 33ZCSENCO 2T d an CRCBDIOXOO05AO01T 33ZCASPCO2 EXHAUST FAN SET POINT m EXH LED LIGHTS v WHEN EXHAUST CONTACT IS MADE MINIMUM DAMPER POSITION SETTING Q wy MAXIMUM DAMPER DEMAND CONTROL DCV Q 10 VENTILATION SET POINT 2 7 AQ LED LIGHTS WHEN DEMAND CONTROL VENTILATION INPUT E 7 IS ABOVE SET POINT aa Ul Doy DEMAND CONTROL soll VENTILATION SET POINT s Ul sey 8 LED LIGHTS WHEN OUTDOOR AIR IS SUITABLE FOR FREE COOLING ENTHALPY CHANGEOVER
70. Slide blade vertically until it is in the appropriate position determined by Fig 16 Tighten screws 9 Remove and save screws currently on sides of hood Insert screen Secure screen to hood using the screws See Fig 15 10 Replace filter access panel Ensure filter access panel slides along the tracks and is securely engaged B Convenience Outlet An optional convenience outlet provides power for rooftop use For maintenance personnel safety the convenience out let power is off when the unit disconnect is off Adjacent unit outlets may be used for service tools An optional Hot Out let is available from the factory as a special order item FILTER ACCESS PANEL OUTDOOR AIR OPENING PANEL SCREWS SIDE MANUAL OUTDOOR AIR ADJUSTMENT SCREWS DAMPER BLADE Fig 13 Damper Panel with Manual Outdoor Air Damper Installed HOOD TOP SCREWS HIDDEN SCREWS SCREEN HOLDERS ASSEMBLED Fig 14 Outdoor Air Hood Details HOOD SIDES AND TOP SCREW HOLES TOP HOOD E HOOD SCREEN LOCATION Fig 15 Optional Manual Outdoor Air Damper with Hood Attached ej AUI TII 9 Hi fts NEGATIVE PRESSURE in wg OUTDOOR AIRFLOW cfm x 100 F
71. TING Compressors areinternally spring mounted Do not loosen or remove compressor holddown bolts Remove the tiedown bands that hold the compressors together 558F 103 121 150 151 units V INTERNAL WIRING Check all electrical connections in unit control boxes tighten as required Verify and correct if necessary E nsure that elec trical component wiring does not come in contact with refrig erant tubing or sharp edges VI REFRIGERANT SERVICE PORTS To service refrigerant service ports remove compressor access panel Each unit system has 3 Schrader type service gage ports one on the suction line theliquid line and one on the compressor discharge line Be sure that caps on the ports aretight The Schrader type valve on the discharge lineis located under the low pressure switch Another valve is located on the discharge line underneath the high pressure switch It is screwed on a Schrader fitting but there is no Schrader core A High Flow Refrigerant Valves Two high flow valves are located on the hot gas tube coming out of the compressor and the suction tube going into the compressor Large black plastic caps identify these valves These valves have O rings inside which screw the cap onto a brass body to prevent leaks No field access to these valves is available at this time Ensurethe plastic caps remain on the valves and are tight or the possibility of refrigerant leakage could occur Vil COMPRESSOR ROTATI
72. ams are an excellent way to increase your knowledge of the equipment discussed in this manual including Unit Familiarization Maintenance Installation Overview Operating Sequence A large selection of product theory and skills programs are available using popular video based formats and materials All include video and or slides plus companion book Classroom Service Training which indudes hands on experience with the products in our labs can mean increased confidence that really pays dividends in faster troubleshooting and fewer call backs Course descriptions and schedules are in our catalog CALL FOR FREE CATALOG 1 800 644 5544 1 Packaged Service Training Classroom Service Training 67 Copyright 2005 Bryant Heating amp Cooling Systems Printed in U S A CATALOG NO 04 53558002 01 START UP CHECKLIST Remove and Store in Job File PRELIMINARY INFORMATION MODEL NO TECHNICIAN DATE BUILDING LOCATION SERIAL NO PRE START UP insert checkmark in box as each item is completed REMOVE COMPRESSOR TIEDOWN BANDS SIZES 103 121 150 151 ONLY PER INSTALLATION INSTRUCTIONS VERIFY THAT CONDENSATE CONNECTION IS INSTALLED AS SHOWN IN THE INSTALLATION INSTRUCTIONS CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS CHECK THAT INDOOR AIR FILTERS ARE CLEAN AND IN PLACE VERIFY THAT UNIT INSTALLATION IS LEVEL WITHIN TOLERANCES LISTED IN THE INSTALLATION INSTRUCTIONS CHECK F
73. anadian units may be fuse or circuit breaker 2 Unbalanced 3 Phase Supply Voltage CRPWREXH022A01 Never operate a motor where a phase imbalance in supply voltage is greater than 2 Use the CRPWREXH023A01 E folowing formula to determine the percent of voltage imbalance CRPWREXH028A01 g CRPWREXH029A01 100 x max voltage deviation from average voltage CRPWREXH030A01 average voltage Example Supply voltage is 460 3 60 4 Determine heater capacity using multiplication factors table below 452v HEATER ACTUAL HEATER VOLTAGE RATING average Votage _482 464 455 200 zoe 230 240 seo 460 aso sso 575 soo a 3 240 694 0 751 0 918 480 0 626 0 840 0 918 1371 600 0 840 0 918 E 3 NOTE The following equation converts kW of heat energy to Btuh kW x 3 412 Btuh 457 Determine maximum deviation from average voltage EXAMPLE m KW at 240 v heater on 208 v 32 0 751 mult factor 457 452 Sv 24 0 kW capacity at 208 v 464 457 27 v AC 457 455 22v Maximum deviation is 7 v Determine percent of voltage imbalance T Voltage Imbalance 100 x 1 53 This amount of phase imbalance is satisfactory as it is below the maximum allowable 2 15 Table 2C Electrical Data Units With Convenience Outlet 558F090 102 120 150 ELECTRIC POWER DISCONNECT 558F NOMINAL HEAT SUPPLY SIZE V Ph Hz UNIT S
74. appropriate position to avoid unnecessary fan overload Minimum Position Control There is a minimum damper position potentiometer on the IV controller See Fig 28 The minimum damper position maintains the minimum airflow into the building during the occupied period When using demand ventilation the minimum damper posi tion represents the minimum ventilation position for VOC volatile organic compound ventilation requirements The maximum demand ventilation position is used for fully occu pied ventilation When demand ventilation control is not being used the min imum position potentiometer should be used to set the occu pied ventilation position The maximum demand ventilation position should be turned fully clockwise Adjust the minimum position potentiometer to allow the minimum amount of outdoor air as required by local codes to enter the building Make minimum position adjustments with at least 10 F temperature difference between the out door and return air temperatures 27 85 90 95 100 105 110 4 1000 ppm 1100 ppm 800 ppm 900 ppm 8 HIGH LIMIT CURVE 5 6 7 43 4 DAMPER VOLTAGE FOR MAX VENTILATION RATE 38 41 Sensor Maximum Range Setting 2 SENSOR MAX RANGE SETTING 3 35 Do av A ZERRE NOLLVHNDIANOO SDNVY 24 SOA RY SO SN XNA
75. ate pan after completion Reinstall EconoMi er and filters Reconnect economizer wiring 8 Replace access panels Now B Condenser Coil Inspect coil monthly Clean condenser coil annually or as required by location and outdoor air conditions Coil Wash coil with commercial coil cleaner Clean the outer sur faces with a stiff brush in the normal manner It is not neces sary to remove top panel Two Row Coils Clean coils as follows 1 Turn off unit power lock out and tag the disconnect 2 Remove top panel screws on condenser end of unit 3 Remove condenser coil corner post See Fig 37 To hold top panel open place coil corner post between top panel and center post See Fig 38 4 Remove screws securing coil to center post 5 Remove fastener holding coil sections together at return end of condenser coil Carefully separate the outer coil section to 4 in from the inner coil section See Fig 39 6 Usea water hose or other suitable equipment to flush down between the 2 coil sections to remove dirt and debris Clean the outer surfaces with a stiff brush in the normal manner 7 Secure inner and outer coil rows together with fas tener removed in Step 5 8 Reposition the outer coil section and remove the coil corner post between the top panel and center post Reinstall the coil corner post and replace all screws C Condensate Drain Check and dean each year at start of cooling season n w
76. d By the time the CO level reaches the set point the damper will be at maximum ventilation and should maintain the set point In order to have the sensor control the economizer damper in this manner first determine the damper voltage output for minimum or base ventilation Base ventilation is the ventila tion required to remove contaminants during unoccupied peri ods The following equation may be used to determine the percent of outside air entering the building for a given damper position For best results there should be at least a 10 degree difference in outside and return air temperatures OA RA To x Outdoor Air Temperature OA Percent of Outdoor Air Tr Return Air Temperature RA Percent of Return Air Mixed Air Temperature Once base ventilation has been determined set the mini mum damper position potentiometer to the correct position The same equation can be used to determine the occupied or maximum ventilation rate to the building For example an output of 3 6 volts to the actuator provides a base ventilation rate of 5 and an output of 6 7 volts provides the maximum ventilation rate of 20 or base plus 15 cfm per person Use Fig 33 to determine the maximum setting of the sensor For example a 1100 ppm set point relates to a 15 cfm per person design Use the 1100 ppm curve on Fig 33 to find the point when the sensor output will be 6 7 volts Line up the poi
77. d to determine when the EconoMi er can be used for free cooling The sensor is factory installed on the EconoMi er IV in the outdoor airstream See Fig 17 The operating range of temperature measurement is 40 to 100 F Supply Air Temperature SAT Sensor The supply air temperature sensor is a 3 K thermistor located at the inlet of the indoor fan SeeFig 27 This sensor is factory installed The operating range of temperature mea surement is 0 to 158 F See Table 3 for sensor temperature resistance values 25 SUPPLY AIR TEMPERATURE SENSOR MOUNTING LOCATION SUPPLY AIR TEMPERATURE SENSOR gt Fig 27 Supply Air Sensor Location Table 3 Supply Air Sensor Temperature Resistance Values TEMPERATURE F RESISTANCE ohms 58 200 250 40 100 680 22 53 010 4 29 091 14 16 590 32 9 795 50 5 970 68 3 747 77 3 000 86 2 416 104 1 597 122 1 080 140 746 158 525 176 376 185 321 194 274 212 203 230 153 248 116 257 102 266 89 284 70 302 55 The temperature sensor looks like an eyelet terminal with wires running to it The sensor is located in the crimp end and is sealed from moisture Outdoor Air Lockout Sensor EconoMi er IV is equipped with an ambient tempera ture lockout switch located in the outdoor air stream which is used tolockout the compressors below a 42 F ambient tem perature See Fig 17 E EconoMi er IV Control Modes Determine the
78. desired install a field supplied timedock func tion in place of the jumper between TR and See Fig 23 When the timedock contacts are closed the IV control will be in occupied mode When the timedock con tacts are open removing the 24 v signal from terminal N the EconoMi er IV will be in unoccupied mode Demand Controlled Ventilation DCV When using the IV for demand controlled venti lation there are some equipment selection criteria which should be considered When selecting the heat capacity and cool capacity of the equipment the maximum ventilation rate must be evaluated for design conditions The maximum damper position must be calculated to provide the desired fresh air Typically the maximum ventilation rate will be about 5 to 1096 more than the typical cfm required per person using normal outside air design criteria A proportional anticipatory strategy should be taken with the following conditions a zone with a large area varied occupancy and equipment that cannot exceed the required ventilation rate at design conditions Exceeding the required ventilation rate means the equipment can condition air at a maximum ventilation rate that is greater than the required ventilation rate for maximum occupancy A proportional anticipatory strategy will cause the fresh air supplied to increase as the room level increases even though the CO set point has not been reache
79. e 2D Electrical Data Units With Convenience Outlet 558F091 103 121 151 VOLTAGE COMPRESSOR OFM ea HEATER ELECTRIC HEAT POWER SUPPLY DISCONNECT SINGLE POINT NOMINAL IFM SIZE V PH Hz TYPE FLA MODEL NO BOX P N min ary una aty FLA 400 FLA MCA FLA LRA CRSINGLE A00 NONE 44 9 44 017 7 8 10 4 8 44 9 44 50 50 48 48 234 234 60 50 50 48 48 234 234 010 12 0 16 0 5 55 0 60 60 51 56 234 234 011 18 4 24 8 77 9 87 80 90 72 81 234 234 012 24 0 32 0 96 6 108 9 100 110 89 101 234 234 012 017 31 8 42 4 0 123 7 140 2 125 150 114 130 234 234 44 9 44 50 50 48 48 234 234 017 7 8 10 4 E i 44 9 44 50 50 48 48 234 234 010 12 0 16 0 55 0 60 60 60 51 56 234 234 011 18 6 24 8 B 77 9 87 80 90 72 81 234 234 012 24 0 32 0 96 6 108 9 100 110 89 101 234 234 012 017 31 8 42 4 0 123 7 140 2 125 150 114 130 234 234 1 49 7 49 60 60 53 53 277 277 017 7 8 10 4 i 49 7 50 60 60 53 53 277 277 010 12 0 16 0 61 0 66 70 70 56 61 277 277 011 18 6 24 8 E 83 9 93 90 100 77 86 277 277 012 24 0 32 0 0 102 6 11 110 125 94 106 277 277 012 and 017 32 3 42 4 129 7 146 2 150 150 119 135 277 277 NONE 016 013 208 230 3 60 NONE 016 013 014 015
80. e imbalance UEM 457 1 53 95 Voltage Imbalance 100 x This amount of phase imbalance is satisfactory as it is below the maximum allowable 2 HEATER MODEL NO 00 017 010 011 012 012 and 017 017 010 011 012 012 and 017 017 010 011 012 012 and 017 016 013 014 015 014 016 016 013 014 015 014 016 016 013 014 015 014 and 016 SINGLE POINT BOX P N CRSINGLE A00 ELECTRIC HEAT POWER SUPPLY DISCONNECT 45 45 45 45 50 60 80 90 100 110 125 150 45 45 45 45 50 60 80 90 100 110 125 150 50 50 50 50 60 70 80 90 100 110 125 150 7 8 10 4 12 0 16 0 18 4 24 8 24 0 32 0 31 8 42 4 j 7 8 10 4 12 0 16 0 18 6 24 8 24 0 32 0 31 8 42 4 7 8 10 4 12 0 16 0 18 6 24 8 24 0 32 0 32 3 42 4 42 42 42 42 45 51 66 75 83 95 108 124 42 42 42 42 45 51 66 75 83 95 108 124 48 48 48 48 51 56 72 81 89 101 114 129 229 229 229 229 229 229 229 229 229 229 229 229 229 229 229 229 229 229 229 229 229 229 229 229 273 273 273 273 273 273 273 273 273 273 273 273 42 24 44 IMPORTANT If the supply voltage phase imbalance is more than 2 contact your local electric utility company immediately 3 22132 For units with power exhaust If a single power source is to be used size wire
81. ed drive 52 Table 29 Fan Performance 558 150 151 Horizontal Discharge Units Alternate Motor Belt Drive EXTERNAL STATIC PRESSURE in wg h m Je 5 25 Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg Le Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts LEGEND NOTES ram 1 Boldface indicates field supplied drive is required Bhp gt 2 Maximum continuous bhp is 5 25 3 See page 33 for general fan performance notes Motor drive range 830 to 1130 rpm All other rpms require field Bee 9 supplied drive 53 PRE START UP N WARNING Failure to observe the following warn ings could result in serious personal injury 1 Follow recognized safety practices and wear protective goggles when checking or the servic ing refrigerant system 2 Do not operate the compressor or provide any electric power to the unit unless the compressor terminal cover is in place and secured 3 Do not remove compressor terminal cover until all electrical sources are disconnected 4 Relieve all pressure from system before touch ing or disturbing anything inside terminal box if refrigerant leak is suspected around compres sor terminals Use accepted methods to recover refr
82. for the power exhaust will be 15 amps per NEC 460 3 60 Compressor no 2 RLA is 7 1 amps and LRA is 55 amps 575 3 60 C 2 RLA is 6 4 d LRA is 40 is 6 4 amps an is 40 amps POWER EXHAUST MCA MCA MCA pam NOTES M 230v 460v did v 1 In compliance with NEC requirements for multimotor and combination load equipment refer to power source Articles 430 and 440 the overcurrent protective device for the unit shall be fuse or HACR breaker CRPWREXH021A01 NA oes Canadian units may be fuse or circuit breaker CRPWREXHO022A01 NA 13 a 2 Unbalanced 3 Phase Supply Voltage Never operate a motor where a phase imbalance in supply voltage is greater than 2 Use the CRPWREXHO023A01 NA 18 w following formula to determine the percent of voltage imbalance 115 folowing formua to d CRPWREXHO28A01 15 CRPWREXHO29A01 _ CRPWREXHO30A01 average voltage Example Supply voltage is 460 3 60 4 Determine heater capacity using multiplication factors table below 452v A B C Be dehy HEATER ACTUAL HEATER VOLTAGE n RATING Average Voltage _452 464 455 _ VOLTAGE 200 208 230 240 440 460 550 575 o ge 3 240 694 0 751 0 918 480 0 626 0 840 0 918 _ 1371 600 0 840 E 3 NOTE The following equation converts kW of heat energy to Btuh kW x 3 412 Btuh 457
83. heat energy to Btuh kW x 3 412 Btuh 457 j 2 NM EXAMPLE 32 0 kW at 240 v heater on 208 v Determine maximum deviation from average voltage 32 0 751 mult factor AB 457 452 5v 24 0 kW capacity at 208 v 464 457 27 v AC 457 455 22v Maximum deviation is 7 v Determine percent of voltage imbalance 74 Volt Imbal 100 Imbalance 1 53 This amount phase imbalance is satisfactory as it is below the maximum allowable 2 19 Table 2D Electrical Data Units With Convenience Outlet 558F091 103 121 151 cont 558F VOLTAGE COMPRESSOR OFM ea HEATER ELECTRIC HEAT POWER SUPPLY DISCONNECT SINGLE POINT NOMINAL IFM RANGE y IFM SIZE UNIT NOMINAL MODEL NO BOX P N SIZE LRA aty p Fia FLA CRHEATER A00 CRSINGLE A00 NONE 60 52 52 277 277 017 7 8 10 4 7 25 3 491 60 60 52 52 277 277 010 12 0 16 0 AJ 38 0 608 60 60 52 56 277 277 i 011 18 6 24 8 7 59 9 873 80 90 72 81 277 277 012 24 0 32 0 7 TT 6 108 9 100 110 89 101 277 277 012 017 31 8 42 4 4 102 125 150 114 130 277 277 208 230 3 60 17 311 12011 14 an NONE 9 539 60 60 57 57 320 320 017 7 8 10 4 7 25 9 539 60 60 57 57 320 320 Hiit 108 010 12 0 16 0 4 38 o 668 70 70 57 61 320 320 011 18 6 24 8 JI 59 90 100 77 86 320 320 012 24 0 32 0 7 TT 110 125 94 106
84. ig 16 Outdoor Air Damper Position Setting C Optional EconoMi er IV See Fig 17 for I V component locations NOTE These instructions are for installing the optional EconoMi er IV only Refer to the accessory EconoMi er IV installation instructions when field installing EconoMi er I V accessory 1 To remove the existing unit filter access panel raise the panel and swing the bottom outward The panel is now disengaged from the track and can be removed See Fig 18 The box with the economizer hood components is shipped in the compartment behind the economizer EconoMi er IV controller is mounted on top of the EconoMi er IV in the position shown in Fig 17 To remove the component box from its shipping posi tion remove the screw holding the hood box bracket tothe top of the economizer Slide the hood box out of theunit SeeFig 19 IMPORTANT If the power exhaust accessory is to be installed on the unit the hood shipped with the unit will not be used and must be discarded Save the aluminum filter for use in the power exhaust hood assembly 23 3 Theindoor coil access panel will be used as the top of the hood Remove the screws along the sides and bot tom of the indoor coil access panel See Fig 20 Swing out indoor coil access panel and insert the hood sides under the panel hood top Usethe screws provided to attach the hood sides to the hood top Use screws provided
85. igerant 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 pres sure remove a component wear protective goggles and proceed as follows a Shut off electrical power to unit b Recover refrigerant to relieve all pressure from system using both high pressure and low pressure ports Cut 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 start up 1 Remove all access panels 2 Read and follow instructions on all WARNING CAUTION and INFORMATION labels attached to or shipped with unit 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 Leak test all refrigerant tubing connections using electronic leak detector halide torch or liquid soap solution c Inspect all field wiring and factory wiring connec tions Be sure that connections are completed and tight Ensure electrical wires do not come in con tact with refrigerant lines or sharp edges d Inspect coil fins
86. in ter protect against freeze up D Filters Clean or replace at start of each heating and cooling season or more often if operating conditions require it Replacement filters must be same dimensions as original filters TOP REMOVE CONDENSER PANEL SCREWS FAN CONTROL BOX CORNER POST SCREWS CONDENSER REMOVE COIL COIL CORNER POST Fig 37 Cleaning Condenser Coil POST COIL CORNER POST CENTER BAFFLE TOP PANEL Fig 38 Propping Up Top Panel TOP VIEW CONDENSER COIL INNER COIL SECTION CENTER BAFFLE OUTER COIL CLEAN SECTION RETURN END Fig 39 Separating Coil Sections LUBRICATION A Compressors Each compressor is charged with correct amount of oil at the factory B Fan Motor Bearings Fan motor bearings are of the permanently lubricated type No further lubrication is required No lubrication of condenser fan or evaporator fan motors is required EVAPORATOR BELT INSPECTION Check condition of evaporator belt or tension during heating and cooling inspections or as conditions require Replace belt or adjust as necessary Refer to Step 7 Adjust Evaporator Fan Speed on page 31 for proper adjustment procedures and belt tension IV CONDENSER FAN ADJUSTMENT Fig 40 1 Shut off unit power supply lockout and tag the disconnect 2 Remove condenser fan assembly grille motor motor cover and fan and loosen fan hub setscrews
87. installation start up and service instructions 558F DuraPac Series SINGLE PACKAGE ROOFTOP Sizes 090 151 ELECTRIC HEATING ELECTRIC COOLING UNITS 77210 1212 Tons IMPORTANT READ BEFORE INSTALLING Read and become familiar with these installation instruc tions before installing this unit Be sure the installation conforms to all applicable local and national codes These instructions contain important information for the proper maintenance and repair of this equipment Retain these instructions for future use CONTENTS Page SAFETY 1 1 53 Step 1 Provide Unit 1 Step 2 Field Fabricate Ductwork 1 Ill Step 3 Install External Trap for Condensate 2 IV Step 4 Rig and Place 2 V Step 5 Make Electrical Connections 9 VI Step 6 Adjust Factory Installed i Mm 22 Vil Step 7 Adjust Evaporator Fan Speed 31 5 54 2 5 45556 RR RR DURER 54 55 SERVICE issus ken nuce Pad oe eee Pee 56 61 61 65 INDEX 2 cad on Pew 66 START UP CHECKLIST CL 1 SAFETY CONSIDERATIO
88. iometer to A fully CCW The Free Cool LED should be lit Set the enthalpy potentiometer to D fully CW The Free Cool LED should turn off Return IV settings and wiring to normal after completing troubleshooting D DCV Demand Controlled Ventilation and Power Exhaust To check DCV and Power Exhaust 1 2 4 Make sure EconoMi er IV preparation procedure has been performed Ensureterminals AQ and AQ1 are open TheL ED for both DCV and Exhaust should be off The actuator should be fully dosed Connect a 9 v battery to AQ positive node and AQ1 negative node The LED for both DCV and Exhaust should turn on The actuator should drive to between 90 and 9595 open Turn the Exhaust potentiometer CW until the Ex haust LED turns off The LED should turn off when the potentiometer is approximately 9096 The actua tor should remain in position 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 tuator should drive fully dosed Turn the DCV and Exhaust potentiometers CCW un til the Exhaust LED turns on The exhaust contacts will close 30 to 120 seconds after the Exhaust LED turns on Return EconoMi er IV settings and wiring to normal after completing troubleshooting E DCV Minimum and Maximum Position To check the DCV minimum and maximum position 1 2 Make sure EconoMi er IV preparation
89. ion pressure gage Refer to appropriate chart to determine what suction temperature should If suction temperature is high add refrigerant If suction temperature is low carefully recover some of the charge Recheck the suction pressure as charge is adjusted EXAMPLE Fig 44 Circuit 1 Outdoor Temperature 85 F Suction Pressure 74 psig Suction Temperature should be 54 Suction Temperature may vary 3 F Vill HIGH PRESSURE SWITCH Located on the compressor hot gas line is a high pressure switch This switch opens at 428 psig and closes at 320 psig No adjustment is necessary Refer to Tables 1A and 1B IX LOSS OF CHARGE SWITCH Located on the condenser liquid line is a low pressure switch which functions as a loss of charge switch This switch con tains a Schrader core depressor This switch opens at 7 psig and closes at 22 psig No adjustment is necessary Refer to Tables 1A and 1B X FREEZESTAT Located on the hair pin end of the evaporator coil is a bimetal temperature sensing switch This switch protects the evaporator coil from freeze up due to lack of airflow The switch opens at 30 F and closes at 45 F No adjustment is necessary Refer to Tables 1A and 1B CIRCUIT NO 1 SUCTION LINE PRESSURE KILOPASCALS 30 40 50 SUCTION LINE TEMPERATURE 60 70 1 4 10 16 21 SUCTION LINE TEMPERATURE C
90. is to be used size wire to include power exhaust MCA and MOCP Check MCA and MOCP when power exhaust is powered through the unit must be in accordance with NEC and or local codes Determine the new MCA including the power exhaust using the following formula MCA New MCA unit only MCA of Power Exhaust For example using a 558FPX091000 unit with MCA 40 1 and MOCP 45 with CRPWREXH030A01 power exhaust MCA New 40 1 amps 1 6 amps 41 7 amps If the new MCA does not exceed the published MOCP then MOCP would not change The MOCP in this example is 45 amps the MCA New is below 45 therefore the MOCP is acceptable If MCA New is larger than the published raise the MOCP to the next larger size For separate power the MOCP for the power exhaust will be 15 amps per NEC POWER EXHAUST MCA MCA 230v 460v e EDU cRPWREXHO21A01 09 CRPWREXHO30AO1 0 64 15 Determine heater capacity using multiplication factors table below HEATER ACTUAL HEATER VOLTAGE 200 208 230 240 seo aao eo sso 575 240 0 694 0 751 0 918 1 000 480 626 0 840 0 918 1 000 600 0 840 0 918 1 000 NOTE The following equation converts kW of heat energy to kW x 3 412 EXAMPLE 32 0 kW at 240 v heater on 208 v 32 0 751 mult factor 24 0 kW capacity at 208 v Tabl
91. its Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg _ 02 _ __ _ o S Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg __ _ A _ m6 Ae su sj Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm LEGEND NOTES 1 Boldface indicates field supplied drive is required pnp Rouen D MORE to ran 2 Maximum continuous bhp is 2 40 3 See page 33 for general fan performance notes Motor drive range 685 to 935 rpm All other rpms require field 9 2 supplied drive Table 26 Fan Performance 558 120 121 Horizontal Discharge Units Alternate Motor Belt Drive EXTERNAL STATIC PRESSURE in wg o o _ x08 oper Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm LEGEND NOTES 22 1 Boldface indicates field supplied drive is required tern 2 Maximum continuous bhp is 2 90 3 See page 33 for general fan performance notes Motor drive range 835 to 1085 rpm All other rpms require field PAM 9 supplied drive Table 27 Fan Performa
92. lly space out pads along unit side C Slab Mount Horizontal Units Only Provide a level concrete slab that extends a minimum of 6 in beyond unit cabinet Install a 6 in gravel apron in front of outdoor coil air inlet to prevent grass and foliage from obstructing airflow NOTE Horizontal units may be installed on a roof curb if required STEP 2 FIELD FABRICATE DUCTWORK On vertical discharge units secure all ducts to roof curb and building structure Do not connect ductwork to unit For hori zontal applications field supplied isolation flanges should be attached to horizontal discharge openings and all ductwork attached to the flanges Insulate and weatherproof all exter nal ductwork joints and roof openings with counter flashing and mastic in accordance with applicable codes REMOVABLE HORIZONTAL RETURN DUCT OPENING COVER REMOVABLE HORIZONTAL SUPPLY DUCT OPENING COVER Fig 1 Horizontal Conversion Panels Ducts passing through an unconditioned space must be insu lated and covered with a vapor barrier If plenum return is used on a vertical unit the return should be ducted through the roof deck to comply with applicable fire codes If electrical connections areto be routed through the bottom of the unit attach accessory thru the bottom service connections to the basepan in accordance with installation instructions A minimum dearanceis not required around ductwork Cab inet return air static pressure
93. m Alt High Static Movable Pulley Maximum Full Turns From Closed Position Alt High Static Factory Setting Std Alt High Static Factory Speed Setting rpm Std Alt High Static Fan Shaft Diameter at Pulley in HIGH PRESSURE SWITCH psig Standard Compressor Internal Relief Differential Cutout Reset Auto LOSS OF CHARGE LOW PRESSURE SWITCH psig Cutout Reset Auto FREEZE PROTECTION THERMOSTAT F Opens Closes OUTDOOR AIR INLET SCREENS RETURN AIR FILTERS Quantity Size in LEGEND Al Aluminum Bhp Brake Horsepower Copper 4 16 20 2 Cleanable Screen size and quantity varies by option selected Throwaway 4 16 x 20 x2 4 20 x 20 x2 4 20 x 20 x 2 Evaporator coil fin material condenser coil fin material Contact your local Bryant representa tive for details about coated fins tWeight of 14 in roof curb NOTE High static motor not available on size 150 and 151 units Table 1B Physical Data 558F091 103 121 151 Units ASHRAE 90 1 1999 Compliant Units 558F UNIT SIZE 07 tt NOMINAL CAPACITY m LE E OPERATING WEIGHT Ib Unit AV AI Al Cu Cu Cu Economizer IV Roof Curbt COMPRESSOR Reciprocating Quantity 2 No Cylinders per Circuit Oil oz each compressor 42 REFRIGERANT TYPE Expansion Device Fixed Orifice Metering Device Operating Charge Ib oz Circuit 1 7 14 8 10 Circuit 2 8 8 CONDENSER COIL Enhanced
94. mpressor contactor 1 C1 are energized and evaporator fan motors compressor no 1 and condenser fans start The condenser fan motor runs continuously while unit is cooling For units with 2 stages of cooling if the thermostat calls for a second stage of cooling by energizing Y 2 compres sor contactor no 2 C2 is energized and compressor no 2 starts When the thermostat is satisfied C1 and C2 are deenergized and the compressors and outdoor condenser fan motors OFM shut off After 30 second delay the indoor evapora tor fan motor shuts off If the thermostat fan selector switch is in the ON position the evaporator motor will run continuously B Heating Units Without EconoMi er IV If Optional or Accessory Heater is Installed Upon a call for heating through terminal W1 IFC and heater contactor no 1 1 are energized On units equipped for 2 stages of heat when additional heat is needed HC2 is energized through W2 C Cooling Units With IV When free cooling is not available the compressors will be controlled by the zone thermostat When free cooling is avail able the outdoor air damper is modulated by the EconoMi er IV control to provide 50 to 55 supply air temperature into the zone As the supply air temperature fluctuates above 55 or below 50 F the dampers will be modu lated open or dose to bring the supply air temperature back within set points limits For
95. mum disconnect per NEC TFuse or HACR circuit breaker per NEC Fuse only ttCompressor no 1 is shown in table 208 230 3 60 Compressor no 2 RLA is 14 1 amps and LRA is 105 amps 460 3 60 Compressor no 2 RLA is 7 1 amps and LRA is 55 amps 575 3 60 Compressor 2 RLA is 6 4 amps and LRA is 40 amps NOTES 1 In compliance with NEC requirements for multimotor and combination load equipment refer to NEC Articles 430 and 440 the overcurrent protective device for the unit shall be fuse or HACR breaker Canadian units may be fuse or circuit breaker 2 Unbalanced 3 Phase Supply Voltage Never operate a motor where a phase imbalance in supply voltage is greater than 2 Use the following formula to determine the percent of voltage imbalance 95 Voltage Imbalance max voltage deviation from average voltage 100 average voltage Example Supply voltage is 460 3 60 452 v 4 Aw BG BC 464 v 455v 452 464 455 Average Voltage 3 1371 3 457 Determine maximum deviation from average voltage AB 457 452 5 v BC 464 457 7 AC 457 455 2 v Maximum deviation is 7 v Determine percent of voltage imbalance d Voltage Imbalance 100 x 457 1 53 This amount of phase imbalance is satisfactory as it is below the maximum allowable 296 18 utility company immediately Heating Air Conditioning and Refrigeration 3 For units with power exhaust If a single power source
96. nce 558F120 121 Horizontal Discharge Units High Static Motor Belt Drive EXTERNAL STATIC PRESSURE in wg p 02 jr Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg __ qur J UA _ Oe ues s Rpm Bhp Watts Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm LEGEND NOTES 1 Boldface indicates field supplied drive is required s aot WERE UMOR S te Fan 2 Maximum continuous bhp is 5 25 3 See page 33 for general fan performance notes Motor drive range 830 to 1130 rpm All other rpms require field 9 supplied drive Table 28 Fan Performance 558F150 151 Horizontal Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg OG Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm LEGEND NOTES 1 Boldface indicates field supplied drive is required ne T toan 2 Maximum continuous bhp is 3 70 3 See page 33 for general fan performance notes Motor drive range 860 to 1080 rpm All other rpms require field 9 suppli
97. nd 32 LED ON 18 17 16 LED OFF LED E14 LED OFF YEP N 12 LED OFE lt LED ON 11 w LED OFF 9 40 45 50 55 60 65 70 75 80 85 90 95 100 DEGREES FAHRENHEIT Fig 29 Outside Air Temperature Changeover Set Points CONTROLLER ECONOMISER IV GROMMET RETURN AIR Psi SENSOR RETURN DUCT FIELD PROVIDED Fig 30 Return Air Temperature or Enthalpy Sensor Mounting Location Differential Enthalpy Control For differential enthalpy control the EconoMi er IV con troller uses two enthalpy sensors 57 078 and CRENTDIFO004A00 one in the outside air and one in the return air duct The EconoMi er IV controller compares the outdoor air enthalpy to the return air enthalpy to determine IV use The controller selects the lower enthalpy air return or outdoor for cooling For example when the out door air has a lower enthalpy than the return air the EconoMi er IV opens to bring in outdoor air for free cooling Replace the standard outside air dry bulb temperature sensor with the accessory enthalpy sensor in the same mounting loca tion See Fig 17 Mount the return air enthalpy sensor in the return air duct See Fig 30 Wiring is provided in the EconoMi er IV wiring harness
98. ndard settings 1 Press Clear and Mode buttons Hold at least 5 sec onds until the sensor enters the Edit mode 2 Press Mode twice The STDSET Menu will appear 3 Use the Up Down button to toggle to the NONSTD menu and press Enter 4 Use the Up Down button to toggle through each of the nine variables starting with Altitude until the desired setting is reached 5 Press Mode to move through the variables 6 Press Enter to lock in the selection then press Mode to continue to the next variable Dehumidification of Fresh Air with DCV Control Information from ASHRAE indicates that the largest humid ity load on any zone is the fresh air introduced For some applications a device such as an energy recovery unit is added to reduce the moisture content of the fresh air being brought into the building when the enthalpy is high most cases the normal heating and cooling processes are more than adequate to remove the humidity loads for most com mercial applications If normal rooftop heating and cooling operation is not ade quate for the outdoor humidity level an energy recovery unit and or a dehumidification option should be considered Table 5 Sensor Standard Settings VENTILATION SETTING EQUIPMENT OUTPUT RATE cfm Person ANALOG OPTIONAL RELAY OUTPUT CONTROL RANGE RELAY SETPOINT HYSTERESIS ppm ppm ppm Interface w Standard 5 2 10 50
99. noe tables to determine blower rpm and watts 32 Table 9 Evaporator Fan Motor Data UNIT EVAPORATOR FAN UNIT MAXIMUM ACCEPTABLE MAXIMUM ACCEPTABLE MAXIMUM 558F MOTOR VOLTAGE CONTINUOUS BHP OPERATING WATTS AMP DRAW pu 208 230 eate 46 30 Alternate mo 240 2120 050 091 208 230 High Static 3 70 3313 150 151 LEGEND NOTE All indoor fan motors 5 hp and larger meet the minimum effi BHP Brake Horsepower ciency requirements as established by the Energy Policy Act of 1992 EPACT effective October 24 1997 Extensive motor and electrical testing on these units ensures that the full horsepower range of the motors can be utilized with confidence Using fan motors up to the horsepower ratings shown in this table will not result in nuisance tripping or premature motor failure Unit warranty will not be affected GENERAL FAN PERFORMANCE NOTES 1 Extensive motor and electrical testing on these units ensures that 2 the full range of the motor can be utilized with confidence Using fan motors up to the wattage ratings shown will not result in nuisance 3 tripping or premature motor failure Unit warranty will not be affected For additional information on motor performance refer to Table 9 4 33 Values include losses for filters unit casing and wet coils See Table 8 for accessory FIOP static pressure drop information Use of a field supplied motor may affect wire sizing Contact your Bryant repre
100. nt on the graph with the left side of the chart to deter mine that the range configuration for the sensor should be 1800 ppm EconoMi er IV controller will output the 6 7 volts from the sensor to the actuator when the CO concentration the space is at 1100 ppm DCV set point may be left at 2 volts since the sensor voltage will be ignored by the IV controller until it rises above the 3 6 volt setting of the minimum position potentiometer Once the fully occupied damper position has been deter mined set the maximum damper demand control ventilation potentiometer to this position Do not set to the maximum position as this can result in over ventilation to the space and potential high humidity levels Tm 29 Sensor Configuration sensor has preset standard voltage settings that can be selected anytime after the sensor is powered up See Table 5 Use setting 1 or 2 for Bryant equipment See Table 5 1 Press Clear and Mode buttons Hold at least 5 sec onds until the sensor enters the Edit mode 2 Press Mode twice The STDSET Menu will appear 3 Use the Up Down button to select the preset number See Table 5 4 Press Enter tolock in the selection 5 Press Mode to exit and resume normal operation The custom settings of the sensor can be changed time after the sensor is energized Follow the steps below to change the non sta
101. or should be removed only when using differential IAQ Indoor Air Quality Minimum Pos Closed enthalpy or dry bulb LA Low Ambient Lockout Device DCV Max Middle 2 separate field supplied 24 v transformer is used for the IAQ sensor power OAT Outdoor Air Temperature DCV Set Middle supply it cannot have the secondary of the transformer grounded POT Potentiometer Enthalpy C Setting 3 For field installed remote minimum position POT remove black wire jumper RAT Return Air Temperature between P and P1 and set control minimum position POT to the minimum position Fig 23 IV Wiring amp 2500 5 6000 E 2 2000 29099 4000 1500 a a Iu a 3000 1000 ul 5 md 2 2000 a 500 2 a 5 Q 1000 2 0 2 5 0 05 015 0 25 iz STATIC PRESSURE in wg 0 05 0 10 0 15 0 20 0 25 0 30 0 35 FLOW IN CUBIC FEET PER MINUTE cfm Fig 24 Barometric Flow Capacity 30 25 20 STATIC PRESSURE in wg 0 13 0 20 0 22 0 25 0 30 0 35 0 40 0 45 0 50 Fig 25 Outdoor Air Damper Leakage STATIC PRESSURE in wg Fig 26 Return Air Pressure Drop IV Standard Sensors Outdoor Air Temperature OAT Sensor The outdoor air temperature sensor 57 074 is a 10 to 20 mA device used to measure the outdoor air temperature The outdoor air temperature is use
102. or switch at OFF position Resetting thermo stat at a position above room temperature shuts unit off tem porarily until space temperature exceeds thermostat setting IX HEATING If Accessory Electric Heater is Installed Tostart unit turn on main power supply Set thermostat at HEAT position and a setting above room temperature and set fan at AUTO position First stage of thermostat energizes the first stage electric heater second stage energizes second stage electric heater elements if installed Check air supply grille s to ensure proper heat supply If unit does not energize reset limit switch located on evaporator fan scroll by pressing button located between terminals on the switch A To Shut Off Unit Set system selector switch at OFF position Resetting heat ing selector lever below room temperature will shut unit off temporarily until space temperature falls below thermostat setting X SAFETY RELIEF A soft solder joint in the suction line at the low pressure service port provides pressure relief under abnormal temper ature and pressure conditions XI VENTILATION Continuous Fan Set fan and system selector switches at ON and OFF posi tions respectively Evaporator fan operates continuously to provide air circulation OPERATING SEQUENCE A Cooling Units Without EconoMi er IV When thermostat calls for cooling terminals G and Y1 are energized The indoor evaporator fan contactor IFC and co
103. orner post to the 24 v barrier located on the left side of the control box See Fig 12 The raceway provides the UL required Underwriters Laboratories dearance between the high and low voltage wiring Connect thermostat wires to screw terminals of low voltage terminal board If unit is to be equipped with electric resistance heat ensure thermostat on a call for heat W energizes G output This allows fan operation on a call for heat COMPS BU l l it rt FIELD POWER SUPPLY 575 3 60 DISCONNECT E 5 r FIELD POWER 208 230 3 60 iu 090 121 DISCONNECT 460 3 60 __ PERNEC _ 1 f ORN TO COM BLU COMP 2 ME EE lt 34 Pit FIELD POWER SUPPLY sto DISCONNECT _ LEGEND Contactor Terminal Block COMP S Compressor s Connection LA Splice Connection NEC National Electrical Code Field Wiring TB Terminal Block Factory Wiring Fig 8 Power Wiring Connections Table 2A Electrical Data Units Without Convenience Outlet 558F090 102 120 150 COMPRESSOR 558F NOMINAL IFM ea UNIT OMIN SIZE 5 40 1 40 1 45 45 42 42 Sid 7 8 10 4 7 25 40 1 40 1 45 45 42 42 oid 12 0 16 0 4 38 48 9
104. oz REFRIGERANT TYPE Operating Charge Ib oz Circuit 1 Circuit 2 CONDENSER COIL Rows Fins in Total Face Area sq ft CONDENSER FAN Nominal Cfm Quantity Diameter in Motor Hp Rpm Watts Input Total EVAPORATOR COIL Rows Fins in Total Face Area sq ft EVAPORATOR FAN Quantity Size in Reciprocating Reciprocating Reciprocating 2 2 2 2 2 2 42 65 54 ea Centrifugal Type Std 5 1 Alt High Static Std 15 15 15 15 15 15 M Belt Belt Alt Belt High Static Belt 5000 3100 Std 2 40 3 70 Alt 5 25 High Static 3 70 Motor Frame Size Std 56 56 Alt 56 High Static 56 Fan Rpm Range Std 685 935 860 1080 Alt 830 1130 High Static 860 1080 Ball Ball 2100 2100 2 8 3 8 Alt 4 0 5 0 4 4 3 1 4 1 High Static 4 0 5 0 8 3 Nominal Motor Shaft Diameter in Std 5 g 7 8 7 8 High Static Std 8 0 5 9 1 A 52 BX 46 15 1 Type Drive Nominal Cfm Maximum Continuous Bhp Motor Bearing Type Maximum Allowable Rpm Motor Pulley Pitch Diameter Min Max in Fan Pulley Pitch Diameter in Alt High Static Belt Quantity Type Length in Std Alt 15 55 High Static Std 15 85 17 50 15 85 17 50 1 55 16 75 19 25 16 75 19 25 15 75 19 25 15 75 19 25 16 75 19 25 Pulley Center Line Distance in Alt High Static 15 85 17 50 15 85 17 50 Speed Change per Full Turn of Movable Pulley Flange rp
105. pplied with the EconoMi er IV IMPORTANT Be sure to record the positions of all potenti ometers before starting troubleshooting 1 Now 10 11 12 Disconnect power at TR and TRL All LEDs should be off Exhaust fan contacts should be open 2 Disconnect device at P and P1 3 4 Disconnect wires at T and T1 Place 5 6 kilo ohm re J umper P to P1 sistor across T and T1 J umper TR to 1 J umper TR to N If connected remove sensor from terminals So and Connect 1 2 kilo ohm 4074EJM checkout resistor across terminals So and Put 620 ohm resistor across terminals Sa and Set minimum position DCV set point and exhaust potentiometers fully CCW counterclockwise Set DCV maximum position potentiometer fully CW clockwise Set enthalpy potentiometer to D Apply power 24 vac toterminals TR and TR1 B Differential Enthalpy To check differential enthalpy 1 2 3 4 5 Make sure EconoMi er preparation procedure has been performed Place 620 ohm resistor across So and Place 1 2 kilo ohm resistor across Sa and The Free Cool LED should be lit Remove 620 ohm resistor across So and The Free Cool LED should turn off Return IV settings and wiring to normal after completing troubleshooting C Single Enthalpy To check single enthalpy 1 2 3 4 Make sure EconoMi er IV preparation procedure has been performed Set the enthalpy potent
106. procedure has been performed Connect a 9 v battery to AQ positive node and AQ1 negative node The DCV LED should turn on The actuator should drive to between 90 and 9595 open Turn the DCV Maximum Position potentiometer to midpoint The actuator should drive to between 20 and 8096 open Turn the DCV Maximum Position potentiometer to fully CCW The actuator should drive fully dosed Turn the Minimum Position potentiometer to mid point The actuator should drive to between 20 and 8096 open Turn the Minimum Position Potentiometer fully CW The actuator should drive fully open Remove the jumper from TR and N The actuator should drive fully dosed Return EconoMi er IV settings and wiring to normal after completing troubleshooting F Supply Air Input To check supply air input 1 2 Make sure EconoMi er IV preparation procedure has been performed Set the Enthalpy potentiometer to A The Free Cool LED turns on The actuator should drive to between 20 and 8095 open Remove the 5 6 kilo ohm resistor and jumper T to T1 The actuator should drive fully open Remove the jumper across T and T1 The actuator should drive fully dosed Return EconoMi er IV settings and wiring to normal after completing troubleshooting IV Troubleshooting Completion This procedure is used to return the EconoMi er IV to opera tion No troubleshooting or testing is done by performing the following procedure 1 2
107. r CAUTION All panels must be in place when rigging Unit is not designed for handling by a fork truck Damage to unit may result PLACE UNIT ON CURB AS CLOSE TO DUCT END AS POSSIBLE DETAIL DUCT END WEIGHT in mm in mm in mm UNIT 558F 102 103 120 121 150 151 ib kg Fig 6 Rigging Details 061 021 201060 855 suoisueuig eseg 31VSN3QNOO 015 3 0133 3915 LHOIY 9 9510 431734 91343 03 8 prl 14405 JO 9 3415100 075 WA1NOZ1YOH SNINAdO 3015110 02 IHOH f9NIN34O 3138 TANVd 55322 334714 OZE 0 LSAWHX4S M3MOd M 33 IWONO23 INOS 530Vld 8 251 2 0 51015 239081 J404 ZSE 1 1 55399 TANVd 55422 YOSSSYdWOo 21412214 J3M018 JOMINO2 80104 000 1 61221 2 1 21183 22011 v E 100701 0 L 62 22 3409 691 21 2 8811 AINO 9313 LAVHI 91 2 5 0 M3MOd WOLLOS 335 ATddns Iv31183AI 06 3015 9NIN3QO 310N 335 70 3015 ile NI 1391 9NIN3d0 NIV 09811 31VSN3QNOO 17V E 91761 9U8 470 eee 3 1
108. sentative for details Interpolation is permissible Do not extrapolate Table 10 Fan Performance 558F090 091 Vertical Discharge Units Standard Motor Belt Drive EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg AIRFLOW Rpm Bnp Watts Rem Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 928 2131 933 2174 LEGEND NOTES 1 Boldface indicates field supplied drive is required Bap EN MGE S tore 2 Maximum continuous bhp is 2 40 3 See page 33 for general fan performance notes Motor drive range 590 to 840 rpm All other rpms require field 9 5 supplied drive Table 11 Fan Performance 558 090 091 Vertical Discharge Units Alternate Motor Belt Drive EXTERNAL STATIC PRESSURE in wg AIRFLOW Cfm EXTERNAL STATIC PRESSURE in wg AIRFLOW C pm Bnp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp Watts Rpm Bhp watts 928 2 29 2131 933 2 33 2174 LEGEND NOTES _ 1 Boldface indicates field supplied drive is required XN VEU WERE o MGR S To rant 2 Maximum continuous bhp is 2 40 3 See page 33 for general fan performance notes Motor drive range 685 to 935 rpm All other rpms require field PAR 3 supplied drive 35 Table 12
109. t be in accordance with NEC and or local codes Determine the new MCA including the MOCP Maximum Overcurrent Protection power exhaust using the following formula NEC National Electrical Code amp MCA New MCA unit only MCA of Power Exhaust OFM Outdoor Condenser Fan Motor For example using a 558FPX091000 unit with MCA 40 1 and MOCP 45 with RLA Rated Load Amps CRPWREXH030A01 power exhaust Used to determine minimum disconnect per NEC MCA New 40 1 amps 1 6 amps 41 7 amps Fuse or HACR circuit breaker per NEC If the new MCA does not exceed the published MOCP then MOCP would not change The MOCP Fuse only in this example is 45 amps the MCA New is below 45 therefore the MOCP is acceptable If MCA tCompressor no 1 is shown in table is larger than the published MOCP raise the MOCP to the next larger size For separate 208 230 3 60 Compressor no 2 RLA is 14 1 amps and LRA is 105 amps power the MOCP for the power exhaust will be 15 amps per NEC 460 3 60 Compressor no 2 RLA is 7 1 amps and LRA is 55 amps 575 3 60 Compressor no 2 RLA is 6 4 amps and LRA is 40 amps POWER EXHAUST MCA MCA MCA NOTES PART NO 230v 460v 575v for separate 1 In compliance with NEC requirements for multimotor and combination load equipment refer to NEC power source Articles 430 440 overcurrent protective device for the unit shall be fuse or HACR breaker CRPWREXH021A01 o9
110. tallation of unit that voltage amperage and circuit protection requirements listed on unit data plate agree with power supply provided STEP 1 PROVIDE UNIT SUPPORT A Roof Curb Assemble and install accessory roof curb in accordance with instructions shipped with curb See Fig 2 Install insulation cant strips roofing felt and counter flashing as shown Duct work must be attached to curb not to unit If electric control power is to be routed through the basepan attach the acces sory thru the bottom service connections to the roof curb in accordance with the accessory installation instructions Con nection must be installed before unit is set on roof curb IMPORTANT The gasketing of the unit to the roof curb is critical for a watertight seal nstall gasket supplied with the roof curb as shown in Fig 2 Improperly applied gasket can also result in air leaks and poor unit performance Curb should be level This is necessary for unit drain to func tion properly Unit leveling tolerances are shown in Fig 3 Refer to Accessory Roof Curb Installation Instructions for additional information as required B Alternate Unit Support When the curb or adapter cannot be used support unit with sleeper rails using unit curb or adapter support area If sleepers cannot be used support long sides of unit with a minimum of three 4 in x 4 in pads 2 at the unit s corners and one at the center of gravity If more than 3 are used equa
111. the legend for Tables 2A and 2B Note 2 to determine the percentage of voltage imbalance Operation on improper line voltage or excessive phase imbal ance constitutes abuse and may cause damage to electrical components Such operation would invalidate any applica ble Bryant warranty B Field Control Wiring Install a Bryant approved accessory thermostat assembly according to installation instructions induded with the accessory Locate thermostat assembly on a solid wall in the conditioned space to sense average temperature in accor dance with thermostat installation instructions Route thermostat cable or equivalent single leads of colored wire from subbase terminals to low voltage connections on unit shown in Fig 11 as described in Steps 1 5 below NOTE For wire runs up to 50 ft use no 18 AWG American Wire Gage insulated wire 35 C minimum For 50 to 75 ft use no 16 AWG insulated wire 35 C minimum For over 75 ft use no 14 AWG insulated wire 35 C minimum All wire larger than no 18 AWG cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat If unit is mounted on roof curb and accessory thru the bottom connection is used route wire through connector provided in accessory kit through the unit basepan Pass control wires through the hole provided on unit see connection D Connection Sizes Table Fig 7A and 7B Feed wire through the raceway built into the c
112. upply All units except 208 230 v units are factory wired for the voltage shown on the nameplate If the 208 230 v unit is to be connected to a 208 v power supply the transformer must be rewired by moving the black wire from the 230 v Yz in male spade terminal on the transformer and connecting it to the 200 v 1 4 male spade terminal on the transformer Refer to unit label diagram for additional information Pig tails are provided for field wire connections When installing units provide a disconnect per NEC Use copper conductors only when splice connectors are used NOTE When accessory thru the bottom connections are used refer to the accessory installation instructions for information on power wiring Refer to Fig 7A and 7B for drilling locations All field wiring must comply with NEC and local require ments Canada electrical connections must be in dance with CSA Canadian Standards Association C22 1 Canadian Electrical Code Part One Install field wiring as follows seeFig 8 10 1 Install conduit through side panel openings between disconnect and single point box see Fig 9 and 10 2 Install power wires to terminal connections as shown in Fig 8 Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate see Tables 2A 2D On 3 phase units voltages between phases must be balanced within 296 and the current within 1096 Use the formula shown in
113. ximum allowable 2 3 For units with power exhaust If a single power source is to be used size wire to include power exhaust MCA and MOCP Check MCA and MOCP when power exhaust is powered through the unit must be in accordance with NEC and or local codes Determine the new MCA including the power exhaust using the following formula MCA New MCA unit only MCA of Power Exhaust For example using a 558FPX091000 unit with MCA 40 1 and MOCP 45 with CRPWREXH030A01 power exhaust MCA New 40 1 amps 1 6 amps 41 7 amps If the new MCA does not exceed the published MOCP then MOCP would not change The MOCP in this example is 45 amps the MCA New is below 45 therefore the MOCP is acceptable If MCA New is larger than the published raise the MOCP to the next larger size For separate power the MOCP for the power exhaust will be 15 amps per NEC POWER EXHAUST MCA MCA MCA Wie PART NO 230 460 6754 Separate CRPWREXHO21A01 o9 NA 15 CRPWREXHO30A01 16 NA 0 64 15 Determine heater capacity using multiplication factors table below HEATER ACTUAL HEATER VOLTAGE 200 208 230 240 seo aao sso 575 240 0 694 0 751 0 918 1 000 480 m 10 626 0 840 0 918 1 000 600 0 840 0 918 1 000 NOTE The following equation converts kW of heat energy to Btuh kW x 3 412 Btuh EXAMPLE
114. ystem and recharge to nameplate Defective compressor Replace and determine cause Insufficient line voltage Determine cause and correct Blocked condenser Determine cause and correct Defective run start capacitor overload or start Determine cause and replace relay Compressor rotating in wrong direction Reverse the 3 phase power leads as described in Start Up section page 54 Outdoor fan contactor not energized Verify outdoor fan coil receiving 24 vac and high voltage contacts close Insufficient evaporator airflow Increase air quantity Check filter and replace if necessary Temperature too low in conditioned area Reset thermostat Field installed filter drier restricted Compressor No 2 Unit in economizer mode Proper operation no remedy necessary Will Not Run Table 31 IV Input Output Logic INPUTS OUTPUTS B Control Entalp Fue ss N Terminalt sntilation _ ss Ventilation DCV ies 2 Occupied Unoccupied Damper Below set Hig Minimum position Closed DCV LED Off Fee Cooling LED Off fon Low Off Modulating between min Modulating between Free Cooling LED On of and full ee closed and full open Oft Off Minimumposiion Closed Above set High Modulatingtt between min Modulatingtt between DCV LED On

Bryant 558F Air Conditioner User Manual

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