Bryant 569C Air Conditioner User Manual
Contents
1. 2 9 te TEA 858 8 1052 5 576B120 564 256 133 60 97 44 141 64 193 88 UNIT SUCTION LIQUID 576B120 Weights are for aluminum coils 569C072 11 28 6 Va 12 7 c Between units control box side 42 in 1067 569C090 1v amp 28 6 ve 12 7 per NEC National Electrical Code U S A p p NOTES 7 Standard 569C120 1 28 6 15 9 1 Dimensions in are in millimeters d Between unit and ungrounded surfaces con 576B090 1ve 28 6 Ve 12 7 i trol box side 36 in 914 per NEC 576B102 1 28 6 58 15 9 2 e Center of Gravity See chart for dimensions e Between unit and block tee walls and 5768120 vp 2 9 other grounded surfaces control box side 6 28 6 eis 3 Direction of Airflow 42 in 1067 per NEC m mW 5 With the exception of the clearance for the con 4 Minimum clearance local codes or jurisdiction may prevail denser coil as stated in note 4b a removable a Condenser coil for proper airflow 36 in 914 one side 12 in 305 fence or barricade requires no clearance the other The left or rear side getting the greater clearance is optional 6 Units may be installed on combustible floors made b Overhead 60 in 1524 to assure proper condenser fan operation from wood or Class A B or C roof covering material 369072 CORNER WS REAR 3 5690090 CORNER y CONDENSER COIL 57680902. 49 569C120 395 179 89 se 42 109 49 105 46 S76B090 510 231 115 52 89 40 135 60 173 67 5768102 193 88 5765120 564 256 133 60 97 44 141 64 193 88 Weights are for aluminum coils Fig 2 Weight Distribution 1 LOCATE THE UNIT A Clearance Maintain dearance around and above unit to provide mini mum distance from combustible materials proper airflow and service access Refer to Fig 2 and 3 Minimum clearance local codes or jurisdiction may prevail a Bottom to combustible surfaces 0 inches b Condenser coil for proper airflow 36 in 914 mm one side 12 in 305 mm the other The left or rear side receiving the greater clearance is optional Overhead 60 in 1524 mm to ensure proper condenser fan operation Between units control box side 42 in 1067 mm per NEC National Electrical Code U S A Standard Between unit and ungrounded surfaces control box side 36 in 914 mm per NEC f Between unit and block or concrete walls and other grounded surfaces control box side 42 in 1067 mm per NEC Although unit is weatherproof guard against water from higher level runoff and overhangs Slab mounted units should be at least 4 in 102 mm above the highest expected water level flood and runoff Do not use the unit if it has been under water Il RIG AND PLACE UNIT Inspect unit for transportation damage File any claim with tran
3. 5768102 5768120 3 9 1144 569120 e ACCESS PANEL i FORK TRUCK SLOTS CORNER Z CORNER Y 3 SIDES ONLY 0 2 1 4 DIA 571 3 3 1 2 8 PLACES 1003 ELECTRICAL 0 i Sea Xe BEEN 13 16 TON CONDENSER COIL 569C120 5768090 5768102 5768120 SUCTION CONNECTION SEE CHART FOR SIZE 1 11 16 322 0 6 11 167 E t1701 LIQUID CONNECT LON FOR SIZE i CONDEN I Ce 7 Ir 0 10 3 4 2731 7 0 10 1 4 0 5 8 168 2 m MM 9 9 16 uni 5 LEFT SIDE RIGHT SIDE Fig 3 Base Unit Dimensions NOTICE TO RIGGERS HOOK RIGGING SHACKLES THROUGH HOLES IN BASE RAIL ON ALL FOUR SIDES HOLES IN BASE RAILS ARE CENTERED AROUND THE UNIT CENTER OF GRAVITY USE WOODEN TOP SKID WHEN RIGGING TO PREVENT RIGGING STRAPS FROM DAMAGING UNIT CAUTION ALL PANELS MUST BE IN PLACE WHEN RIGGING DETAIL A UNIT 569C072 569C090 Weights are for aluminum coils Fig 4 Rigging Label 5 SNUBBER WASHER NEOPRENE SNUBBER SELF LOCKING BOLT COMPRESSOR FOOT ISOLATION SPRING Fig 5 Typical Compressor Mounting 576B Units B Filter Drier and Moisture Indicator The filter drier is factory installed Moisture indicator is a field installed accessory and should be installed just after liq uid line shutoff valve
4. AB 452 v A B BC 464 v AC 455v Average Voltage 45246A t455 AB 457 452 5v BC 464 457 27v AC 457 455 2v Maximum deviation is 7 v Determine percent voltage imbalance 96 Voltage Imbalance 100 x 2 457 1 53 This amount of phase imbalance is satisfactory as it is below the maxi mum allowable 2 IMPORTANT If the supply voltage phase imbalance is more than 2 contact your local electric utility company immediately 3 The 575 v units are CSA only 4 The 380 v units are not UL or CSA listed o 24 V BARRIER LOW VOLTAGE THERMOSTAT lt CONNECTION BOARD RACEWAY d HIDDEN CORNER 5 ZA T ES A CN ZA S N MA DEL Fig 8 Field Control Wiring Raceway 576B Unit Shown Table 5 American European Wire Conversions AMERICAN EUROPEAN American Industry Industry Conversion Standard Standard Size mm Size mm 18 AWG 16 AWG 14 AWG 12 AWG 10 AWG 8 AWG 6 AWG 4 AWG 3 AWG 2 AWG 1 AWG 1 0 AWG 2 0 AWG 3 0 AWG 4 0 AWG 250 kcmil 300 kcmil 350 kcmil 400 kcmil 500 kcmil 600 kcmil LEGEND AWG American Wire Gage kcmil Thousand Circular Mils a o ON aw D 0oovoouu VI ACCESSORY INSTALLATION At this time any required accessories should be installed on the unit Refer to Table 6 for available accessories Control wiring information is pr
5. Values shown are for units operating at 45 F 7 2 C saturated suction and 95 F 35 C entering air V ELECTRICAL CONNECTIONS UNIT WARNING The unit cabinet must have an uninter rupted unbroken electrical ground to minimize the pos sibility of personal injury if an electrical fault should occur This ground may consist of electrical wire con nected to the unit ground lug in the control compart ment or conduit approved for electrical ground when installed in accordance with the NEC and local electri cal codes Failure to adhere to this warning could re sult in personal injury A CAUTION Failure to follow these precautions could result in damage to the unit being installed A Field Power Supply Fig 6 8 1 Make all electrical connections in accordance with NEC ANSI NFPA American National Standards Institute National Fire Protection Association 70 latest edition and local electrical codes governing such wiring Refer to unit wiring diagram Use only copper or copper clad conductor fan connec tions between field supplied electrical disconnect switch and unit DO NOT USE ALUMINUM WIRE Maximum wire size is no 2 AWG American Wire Gage Voltage to compressor terminals during operation must be within voltage range indicated on unit nameplate also see Table 4 On 3 phase units voltages between phases must be balanced within 296 and the current within 1096 Usethe formula shown in Table 4 Note 2 to determ
6. calls for cooling If a demand for cooling occurs within 5 min utes after the thermostat is satisfied the system will not re start due to the feature of Time Guard 11 device After the 5 minute time period the system will restart as normal upon thermostat demand The system is protected with a Cycle LOC device so that the compressor will not start if a high pressure or low pressure fault occurs To reset the Cycle LOC device set the thermo stat to eliminatethe cooling demand then return tothe origi nal set point This should be done only once and if system shuts down due to the same fault determine the problem be fore attempting to reset the Cycle LOC device The crankcase heaters must be energized for a minimum of 24 hours before starting a 569C and 576B unit D Oil Charge 576B Units Allow unit to run for about 20 minutes Stop unit and check compressor oil level Add oil only if necessary to bring oil into view in sight glass Use only approved compressor oil Approved oils are Suniso 3GS WF 32 150 If oil is added run unit for an additional 10 minutes Stop unit and check oil level If level is still low add oil only after determining that piping system is designed for proper oil re turn and that system is not leaking oil 569C Units The 569C units do not have a sight glass and are factory charged with the correct amount of oil All Units Do not reuse drained oil or useany oil that has been exposed to the
7. Do not use a receiver A receiver is not supplied with the unit and should not be used NOTE Unit is shipped with R 22 holding charge System pres sure must be relieved before removing caps Recover refrig erant prior to brazing Pass nitrogen or other inert gas through piping while braz ing to prevent formation of copper oxide Install field supplied thermostatic expansion val ve s in evapo rator section It is recommended that a field supplied liq uid line solenoid be positioned in the main liquid line near the evaporator coil It should be wired to close when com pressor stops to minimize refrigerant migration during the OFF cycle Table 2 Refrigerant Piping Sizes LINEAR LENGTH OF PIPING FT M 0 25 25 50 50 75 75 100 15 2 22 9 22 9 30 5 es 0 7 6 7 6 15 2 Line Size in OD 1151115 TL 5 Lj S gt LEGEND L Liquid Line Suction Line NOTES 1 Pipe sizes are based on a 2 F 1 C loss for liquid and suction lines 2 Pipe sizes are based on the maximum linear length shown for each column plus a 50 allowance for fittings 3 Charge units with R 22 in accordance with unit installation instructions 4 Line size conversion to mm is in mm V2 12 7 58 15 9 1 28 6 1 34 9 Table 3 Liquid Line Data LIQUID LINE Max Allowable Max Allowable Pressure Drop Temp Loss C 1 MAX ALLOWABLE LIQUID LIFT ce ssscozz 56 569coo 60 5768090 60 NOTE
8. VALVE PSIG ADD CHARGE IF ABOVE CURVE HERRERA LIQUID TEMPERATURE AT LIQUID VALVE F 8 REDUCE CHARGE IF BELOW CURVE 50 100 150 200 250 300 350 400 LIQUID PRESSURE AT LIQUID VALVE PSIG LIQUID TEMPERATURE AT LIQUID VALVE DEG P LIQUID TEMPERATURE AT LIQUID VALVE DEG C 8 1 50 1000 1500 2000 2500 500 1000 1500 2000 2500 LIQUID PRESSURE AT LIQUID VALVE kPag LIQUID PRESSURE AT LIQUID VALVE kPag g 14 Cooling Charging Chart 569C072 Fig 15 Cooling Charging Chart 569C090 120 F and 576B090 102 120 13 TROUBLESHOOTING GUIDE SYMPTOM CAUSE REMEDY UTEM Ee Contactor open Fuses blown Replace with correct fuses after finding cause and correcting Transformer open shorted Replace transformer if primary windings are receiving power and no output Thermostat circuit open Check thermostat setting Low pressure switch open Check for refrigerant undercharge or system leak High pressure switch open Check for refrigerant over charge or obstruction of outdoor airflow Tighten all connections Compressor motor thermostat open Check for excessive motor temperature Compressor does not run Compressor leads loose broken Check connections with power off Contactor closed Single phasing Replace blown fuse Compressor internal overload open Allow compressor motor windings
9. is below 25 F 4 C unless accessory low am bient kit is installed A Checking Cooling Control Operation Start and check the unit for proper cooling control operation as follows 1 Place room thermostat SYSTEM switch in OFF posi tion Observe that blower motor starts when FAN switch is placed in ON position and shuts down when FAN switch is placed in AUTO position 2 PlaceSYSTEM switch in COOL position and FAN switch in AUTO position Set cooling control below room tem perature Observe that compressor and condenser and evaporator fan motors start Observe that cooling cycle shuts down when control setting is satisfied B Unit Controls units have the following internal protection controls Compressor Overload This overload interrupts power to the compressor when either the current or internal motor winding temperature be come excessive and automatically resets when the internal temperature drops to a safe level This overload may require up to 60 minutes or longer to reset If the internal overload is suspected of being open disconnect the electrical power to the unit and check the circuit through the overload with an ohmmeter or continuity tester Time Guard I Device The unit is equipped with accessory Time Guard 11 recyde timer The device will cause a 5 minute delay between com pressor starts Cycle LOC Device When high pressure or low pressure fault occurs the Cycle LOC device will prote
10. 08 230 3 60 460 3 60 569C072 575 3 60 220 3 50 400 3 50 208 230 3 60 460 3 60 569C090 575 3 60 220 3 50 400 3 50 Wm Ma RA 1m COMPRESSOR OFM SUPPLY 35 CS FLA HACR LR MCA MOCP NE OFM RL UL 208 230 3 60 460 3 60 569C120 575 3 60 220 3 50 400 3 50 208 230 3 60 380 3 60 460 3 60 576B090 220 3 50 400 3 50 208 230 3 60 380 3 60 460 3 60 5768102 220 3 50 400 3 50 208 230 3 60 380 3 60 460 3 60 5768120 220 3 50 400 3 50 LEGEND Canadian Standards Association Full Load Amps Heating Air Conditioning and Refrigeration Locked Rotor Amps Minimum Circuit Amps Maximum Overcurrent Protection National Electrical Code U S A Standard Outdoor Condenser Fan Motor Rated Load Amps Underwriters Laboratories UL SP A A C A NOTES 1 In compliance with NEC requirements for multimotor and combina tion load equipment refer to NEC Articles 430 and 440 the over current protective device for the unit shall be fuse or HACR breaker 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 voltage imbalance 100 x max voltage deviation from average voltage average voltage ooo pw oe oa a pw eo a TBRRRILDIRBRRRIL RBRRRIL RRRRLOUQO 0 ootd00ot o Example Supply voltage is 460 3 60
11. 500 CONDENSER COIL Enhanced Copper Tubes Aluminum Lanced Fins Face Area sq ft 20 5 18 0 Storage Capacity Ib T 16 56 CONNECTIONS sweat Suction in Liquid in CONTROLS Pressurestat Settings psig High Cutout Cut in Low Cutout Cut in LEGEND NOTE Unit 576B120 has one step of unloading Full load is 100 ca NEMA National Electrical Manufacturing Association pacity and one step of unloading is 6796 capacity Unit 576B120 has Ss 3 the following unloader settings load is 70 1 psig and unload is Unit is factory supplied with holding charge only 60 2 psig TStorage capacity of condenser coil with coil 8095 full of liquid R 22 at 124 F Table 1B Specifications SI UNIT 569C072 569C090 569C120 5768090 576B102 576B120 NOMINAL CAPACITY kW 26 35 OPERATING WEIGHT kg Aluminum Coils Standard 154 168 179 231 256 256 Copper Coils Optional 175 199 214 262 287 287 RIGGING WEIGHT kg Aluminum Coils Standard 176 191 202 254 279 279 Copper Coils Optional 198 221 237 285 309 309 REFRIGERANT R 22 COMPRESSOR Bristol Reciprocating Copeland Scroll Copeland Scroll Reciprocating Semi Hermetic Quantity Type 1 H26A72Q 1 ZR94KC 1 ZR125KC 1 06DA818 Soe Noe 1 Quantity Cylinders 2 4 Speed R s 58 4 58 4 29 2 Oil Charge L ea 1 92 3 25 2 60 CONDENSER FAN Propeller Direct Drive Quantity R s 1 18 3 Diameter mm 660 Motor Hp NEMA 34 Nominal Airflow L s 3050 CON
12. C National Electrical Code U S A Standard Field Wiring Factory Wiring X Splice Connection Factory Supplied Fig 6 Power Wiring Connections CONNECTION BOARD TB See fue R RED 1 THERMOSTAT JUMPER RI Ri 3 2 AMPS ORN d ORN B Control Voltage Connections Install an accessory thermostat assembly according to instal lation instructions included with the accessory Locate ther mostat assembly on a solid wall in the conditioned space to sense average temperature in accordance 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 7 as described in Steps 1 through 4 below NOTE Refer to Table 5 for wire conversion information NOTE For wire runs up to 50 ft 15 2 m use no 18 AWG 0 82 mm insulated wire 35 C minimum For 50 to 75 ft 15 2 to 22 9 m use no 16 AWG 1 30 mm insulated wire 35 C minimum For over 75 ft 22 9 m use no 14 AWG 2 08 mm insulated wire 35 C minimum All wire larger than no 18 AWG 0 82 mm cannot be directly connected to the thermostat and will require a junction box and splice at the thermostat 1 Connect thermostat wires to screw terminals of low volt age connection board 2 Pass the control wires through the hole provided in the corner post See Fig 8 3 Feed wire through raceway built into th
13. DENSER COIL Enhanced Copper Tubes Aluminum Lanced Fins Face Area sq m 1 90 1 6 Storage Capacity kg t CONNECTIONS sweat Suction in 1 Liquid in ys CONTROLS Pressurestat Settings kPa High Cutout 2937 48 Cut in 2206 138 Low Cutout 48 20 Cut in 152 34 LEGEND NOTES T ian 1 Unit 576B120 has one step of unloading Full load is 10096 capacity National Manufaetunng Association and one step of unloading is 67 capacity Unit 576B120 has the Unit is factory supplied with holding charge only following unloader settings load is 483 6 9 kPa and unload is TStorage capacity of condenser coil with coil 80 full of liquid R 22 at 414 13 8 kPa 51 C 2 Equivalent mm values for connectors are as follows in Ve 12 7 5 15 9 1 28 6 WEIGHT CHART ELECTRICAL CONNECTIONS CONNECTION SIZES 138 DIA 35 FIELD POWER SUPPLY HOLE UNIT DIM A DIM B DIM C Dim D DIM E DIM F HE e ce pot Ane UNIT 569C072 340 154 39 53 24 77 569C090 370 168 78 35 99 89 42 109 BB 2 DIA 51 POWER SUPPLY KNOCK OUT CC 2 DIA 64 POWER SUPPLY KNOCK OUT DD 7 amp DIA 22 FIELD CONTROL WIRING HOLE 569 120 395 179 92 42 576B090 510 231 115 se 89 40 as 17s 87 sreeoz ses ase 183 60 sr 24 141 64 cu Ua eae patio dud 576B090 457 5 858 8 1052 5 576B102 17 1 5
14. Evacuate and recharge unit per Step VII 14 Restore unit power VI CRANKCASE HEATER Except 569C072 Thecrankcase heater prevents refrigerant migration and com pressor oil dilution during shutdown when compressor is not operating Close both compressor service valves if applicable when crank case heater is deenergized for more than 6 hours Vil REFRIGERANT CHARGE Unit panels must be in place when unit is operating during charging procedure Unit is shipped with a holding charge only Weigh in 7 Ibs 3 kg of R 22 to start unit Refer toGTAC II Module 5 Charging Recovery Recycling and Reclamation for additional information See Troubleshooting Guide on page 14 for additional information A Low Charge Cooling Using Cooling Charging Charts Fig 14 and 15 vary refrig erant until the conditions of the appropriate chart are met Note the charging charts are different from type normally used The charts are based on charging the units to the correct sub cooling for the various operating conditions Accurate pres sure gage and temperature sensing device are required Con nect the pressure gage to the service port on the liquid line service valve Mount the temperature sensing device on the liquid line close the liquid line service valve and insulate it so that outdoor ambient temperature does not affect the read ing Indoor air cfm must be within the normal operating range of the unit Operate unit a minimum of 15 mi
15. L NO SERIAL NO ADDITIONAL ACCESSORIES Il PRE START UP OUTDOOR UNIT IS THERE ANY SHIPPING DAMAGE YN IF SO WHERE WILL THIS DAMAGE PREVENT UNIT START UP YN CHECK POWER SUPPLY DOES IT AGREE WITH UNIT YN HAS THE GROUND WIRE BEEN CONNECTED YIN HAS THE CIRCUIT PROTECTION BEEN SIZED AND INSTALLED PROPERLY YN ARE THE POWER WIRES TO THE UNIT SIZED AND INSTALLED PROPERLY YN HAVE COMPRESSOR HOLDDOWN BOLTS BEEN LOOSENED Snubber washers are snug but not tight YN CONTROLS ARE THERMOSTAT AND INDOOR FAN CONTROL WIRING CONNECTIONS MADE AND CHECKED YN ARE ALL WIRING TERMINALS including main power supply TIGHT YN HAS CRANKCASE HEATER BEEN ENERGIZED FOR 24 HOURS YN INDOOR UNIT HAS WATER BEEN PLACED IN DRAIN PAN TO CONFIRM PROPER DRAINAGE YN ARE PROPER AIR FILTERS IN PLACE YN HAVE FAN AND MOTOR PULLEYS BEEN CHECKED FOR PROPER ALIGNMENT YIN DO THE FAN BELTS HAVE PROPER TENSION YN HAS CORRECT FAN ROTATION BEEN CONFIRMED YIN PIPING IS LIQUID LINE SOLENOID VALVE LOCATED AT THE EVAPORATOR COIL AS REQUIRED YN HAVE LEAK CHECKS BEEN MADE AT COMPRESSOR CONDENSER EVAPORATOR TXVs Thermostatic Expansion Valves SOLENOID VALVES FILTER DRIERS AND FUSIBLE PLUGS WITH A LEAK DETECTOR Y N LOCATE REPAIR AND REPORT ANY LEAKS ARE ALL 576B COMPRESSOR SERVICE VALVES FULLY OPENED BACKSEATED YN HAVE LIQUID LINE SER
16. NT Fig 12 Shut off unit power supply Remove condenser fan assembly grille motor motor cover and fan Loosen fan hub setscrews Adjust fan height as shown in Fig 12 Tighten set screws Replace condenser fan assembly OU BU NH MOTOR COVER OUTLET GRILLE SEE NOTE CONDENSER FAN MOTOR CONDENSER FAN FAN HUB SET SCREW NOTE Fan height adjustments are as follows UNIT in mm Fig 12 Outdoor Condenser Fan Adjustment All Units except 569C072 IV CAPACITY CONTROL 576B120 Only A suction pressure actuated unloader controls 2 cylinders and provides capacity control Unloaders are factory set see Table 1A or 1B but may be field adjusted A Control Set Point The control set point cylinder load point is adjustable from 0 to 85 psig 586 kPa To adjust turn control set point ad justment nut Fig 13 dockwise to its bottom stop In this position set point is 85 psig 586 kPa Then turn adjust ment counterclockwise to desired control set point E very full turn counterclockwise decreases set point by 7 5 psig 51 7 kPa B Pressure Differential The pressure differential difference between cylinder load and unload points is adjustable from 6 to 22 psig 41 4 to 152 kPa To adjust turn pressure differential adjustment screw Fig 13 counterclockwise to its back stop position In this position differential is 6 psig 41 4 kPa Then turn adjustment
17. See Fig 9 To hold top panel open place coil corner post between top panel and side panel See Fig 10 4 Remove bracket holding coil sections together at return end of condenser coil Carefully separate the outer coil section 3 to 4 in 75 to 100 mm from the inner coil sec tion See Fig 11 5 Use a 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 6 Reposition the outer coil section attach the bracket re moved in Step 4 and remove the coil corner post from between the top panel and side panel Secure the sec tions together Install the coil corner post and replace all screws removed in Step 2 Il LUBRICATION A Compressors Each compressor is charged with the correct amount of oil at the factory Refer to the Oil Charge section on page 10 for ad ditional information B Fan Motor Bearings Fan motor bearings are of the permanently lubricated type No further lubrication is required CONTROL BOX CORNER POST REMOVE SCREWS CONDENSER REMOVE COIL COIL CORNER POST Fig 9 Cleaning Condenser Coil COIL CORNER TOP PANEL CONDENSER COIL Fig 10 Propping Up Top Panel TOP VIEW TOP PANEL CONDENSER COIL INNER COIL SECTION 4 MAX 100 mm RETURN END OUTER COIL CLEAN SECTION Fig 11 Separating Coil Sections Ill CONDENSER FAN ADJUSTME
18. VICE VALVE AND SUCTION LINE SERVICE VALVE BEEN OPENED Y N IS THE OIL LEVEL IN COMPRESSOR CRANKCASE ON 576B UNIT IN VIEW IN THE COMPRESSOR SIGHT GLASS Y N CHECK VOLTAGE IMBALANCE LINE TO LINE VOLTS AB V AC V BC V AB AC BC 3 AVERAGE VOLTAGE V MAXIMUM DEVIATION FROM AVERAGE VOLTAGE V VOLTAGE IMBALANCE 100 X MAX DEVIATION AVERAGE VOLTAGE IF OVER 2 VOLTAGE IMBALANCE DO NOT ATTEMPT TO START SYSTEM CALL LOCAL POWER COMPANY FOR ASSISTANCE CL 1 Ill START UP CHECK EVAPORATOR FAN SPEED AND RECORD CHECK CONDENSER FAN SPEED AND RECORD AFTER AT LEAST 15 MINUTES RUNNING TIME RECORD THE FOLLOWING MEASUREMENTS OIL PRESSURE 576B only SUCTION PRESSURE SUCTION LINE TEMP DISCHARGE PRESSURE DISCHARGE LINE TEMP ENTERING CONDENSER AIR TEMP LEAVING CONDENSER AIR TEMP EVAP ENTERING AIR DB dry bulb TEMP EVAP ENTERING AIR WB wet bulb TEMP EVAP LEAVING AIR DB TEMP EVAP LEAVING AIR WB TEMP COMPRESSOR AMPS L1 L2 L3 HAS REFRIGERANT CHARGE BEEN ADJUSTED PER UNIT CHARGING CHART NOTES Copyright 1999 Bryant Heating amp Cooling Systems CL 2 CATALOG NO 5356 902
19. atmosphere Procedures for adding or removing oil are given in the Standard Service Techniques Manual Chapter 1 Refrigerants CARE AND MAINTENANCE To ensure continuing high performance and to minimize the possibility of premature equipment failure periodic mainte nance must be performed on this equipment This cooling unit should be inspected at least once each year by a qualified serv ice person NOTE TO EQUIPMENT OWNER Consult your local dealer about the availability of a maintenance contract NWARNING The ability to properly perform mainte nance on this equipment requires certain expertise mechanical skills tools and equipment If you do not possess these do not attempt to perform any mainte nance on this equipment other than those procedures recommended in the U ser s Manual FAILURE TO HEED THIS WARNING COULD RESULT IN SERIOUS PER SONAL INJ URY AND POSSIBLE DAMAGE TO THIS EQUIPMENT 10 SERVICE WARNING When servicing unit shut off all electri cal power to unit to avoid shock hazard or injury from rotating parts I CLEANING Inspect unit interior at the beginning of each cooling season and as operating conditions require A Condenser Coil Inspect coil monthly Clean condenser coil annually and as required by location and outdoor air conditions Clean coil as follows 1 Turn off unit power 2 Remove and save top panel screws on condensing unit 3 Remove condenser coil corner post
20. ct the system by not allowing the com pressor to start Low Pressure Loss of Charge Switch LPS When the liquid line pressure drops below 7 psig 48 kPa the LPS opens 24 v power to the compressor contactor and stops the compressor When the pressure reaches 22 psig 152 kPa the switch resets and the compressor is allowed to restart High Pressure Switch HPS When the refrigerant high side pressure reaches 426 psig 2937 kPa the HPS opens 24 v power to the compressor con tactor and stops the compressor When the pressure drops to 320 psig 2206 kPa the switch resets and the compressor is allowed to restart C Sequence of Operation At start up the thermostat calls for cooling When all safety devices are satisfied the compressor contactor fan con tactor will energize causing the compressor and outdoor con denser fan motor to operate Terminal G at the thermostat is also energized allowing the field supplied and installed 24v indoor evaporator fan contactor to function A field supplied and installed liquid line valve connected between Terminals G and C will also open allowing the system to funcion in cooling As cooling demand is satisfied the ther mostat contacts break deenergizing the contactor causing the system to shut off Theliquid line solenoid LLS valve closes minimizing the potential for refrigerant migration at this time The compressor does not restart until the thermostat again
21. e corner post and into the 24 v thermostat connection board The 24 v thermostat connection is located on the left side of the low voltage connection compartment The raceway pro vides the UL required clearance between the high and low voltage wiring 4 Total combined amperage draw of the field installed liq uid line solenoid valve and indoor fan contactor must not exceed 22 va If the specified va must be exceeded use a remote relay to switch the load 9 BLK ORN RED YEL 460 230 200 TRAN BRN O c cB ED ape b BRN BRN C BLU TRAN VIO BRN su CONNECTION DH BRN 8RN C BOARD HPS P WHT WHT G poor Wc da es 13 TOR LEGEND Adjustable Heat Anticipator LLSV Liquid Line Solenoid Valve Cx C Contactor Compressor LPS Low Pressure Switch e CB Circuit Breaker TB Terminal Block CC Cooling Compensator TC Thermostat Cooling CLO Compressor Lockout TDR Time Delay Relay For HPS High Pressure Switch TH Thermostat Heating IFC Indoor Evaporator Fan Contactor TRAN Transformer BRN d 1 CLO Terminal Marked Splice Factory Wiring Field Control Wiring To Indicate Common Potential Only Not To Represent Wiring Fig 7 Typical Control Wiring Connections 569C Shown e a NOMINAL VOLTAGE UNIT V Ph Hz Table 4 Electrical Data 2
22. gerant Service Ports 12 TROUBLESHOOTING GUIDE 14 15 SAFETY CONSIDERATIONS WARNING I mproper installation adjustment alter ation service maintenance or use can cause explo sion fire electric shock or other occurrences which may injure you or damage your property Consult a quali fied installer or service agency for information or assis tance The qualified installer or agency must use only factory authorized kits or accessories when repairing this product Recognize safety information This is the safety alert sym bol A When you see this symbol on the unit and in instructions or manuals be alert to the potential for per sonal injury Cancels 11 569C 72 3 I 569C 72 4 5 1 99 Fig 1 Typical Unit 569C072 Shown Understand the signal words DANGER WARNING and CAUTION These words are used with the safety alert sym bol Danger identifies the most serious hazards which will result in severe personal injury or death Warning indicates a condition that could result in personal injury Caution is used to identify unsafe practices which would result in minor personal injury or product and property damage NWARNING Before performing service or mainte nance operations on unit turn off main power switch to unit Electrical shock could cause personal injury 1 The power supply volts hertz and phase must corre spond to that s
23. ine the percent voltage imbalance Operation on improper line voltage or excessive phase imbalance constitutes abuse and may cause damage to electrical components Such operation would invalidate any applicable warranty Insulate low voltage wires for highest voltage con tained within conduit when low voltage control wires are run in same conduit as high voltage wires Donot damage internal components when drillingthrough any panel to mount electrical hardware conduit etc All units except 208 230 v units are factory wired for the volt age 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 orange wire on the transformer and connecting it to the 200 v red wire from the transformer The end of the orange wire must then be insulated Refer to unit label diagram for additional information Pig tails are provided for field wire connections Use factory supplied splices or UL Underwriters Laboratories approved copper aluminum connector When installing units provide a disconnect per NEC field wiring must comply with NEC and requirements Install field wiring as follows 1 Install conduit through side panel openings 2 Install power lines to terminal connections as shown in Fig 6 local 208 230 3 60 380 3 60 1 460 3 60 FIELD POWER SUPPLY 575 3 60 r 4 0 LEGEND C d C Contactor NE
24. installation start up and service instructions COMMERCIAL AIR COOLED CONDENSING UNITS IMPORTANT READ BEFORE INSTALLING 1 Read and become familiar with these installation instructions before installing this unit Fig 1 2 Be sure the installation conforms to all applicable local and national codes 3 Theseinstructions contain important information for the proper maintenance and repair of this equipment Re tain these instructions for future use CONTENTS Page SAFETY CONSIDERATIONS 1 INSTALLATION 1 9 1 Locate the Unit 2 Il Rig and Place Unit 2 Compressor Mounting 2 IV Unit Refrigerant Piping Connections 2 V Electrical Connections 6 VI Accessory Installation 9 PRE START UP 9 START UP een ru RR ct 10 Start Up and Adjustments 10 CARE AND MAINTENANCE 10 SERVICE annu ie 11 13 I Cleaning 11 ll Lubrication 11 Ill Condenser Fan Adjustment 11 IV Capacity Control 12 V Compressor Removal 12 VI Crankcase Heater 12 Vil Refrigerant Charge 12 Vill Refri
25. lts After unit is installed loosen each bolt until the snubber washer can be moved with finger pressure 376B units only See Fig 5 IV UNIT REFRIGERANT PIPING CONNECTIONS Suction connection is sweat with plastic cap liquid connec tion is sweat with plastic cap Refer to Table 2 for refrigerant piping sizes Follow standard piping practices A Size Refrigerant Lines Consider length of piping required between condensing unit and evaporator amount of liquid lift and compressor oil return See Table 3 for design details and line sizing Refer to evaporator installation instructions for additional information Table 1A Specifications English UNIT 569C072 569C090 569C120 576B090 576B102 576B120 NOMINAL CAPACITY fons 6 m o m 8 39 OPERATING WEIGHT Ib Aluminum Coils Standard 340 370 395 510 564 564 Copper Coils Optional 386 438 472 578 632 632 RIGGING WEIGHT Ib Aluminum Coils Standard 390 420 445 560 614 614 Copper Coils Optional 436 488 522 628 682 682 REFRIGERANT R 22 COMPRESSOR Bristol Reciprocating Copeland Scroll Copeland Scroll Reciprocating Semi Hermetic Quantity Type 1 H26A72Q 1 ZR94KC 1 ZR125KC 1 06DA818 1 06DA824 Tec Note Quantity Cylinders 2 4 6 Speed Rpm 3500 3500 3500 1750 1750 Oil Charge oz ea 85 110 88 128 CONDENSER FAN Propeller Direct Drive Quantity Rpm 1 1100 Diameter in 26 Motor Hp NEMA 34 Nominal Airflow cfm 6
26. nutes Ensure that tem perature and pressure have stabilized Plot liquid pressure and temperature on chart and add or reduce charge as re quired Do not vent refrigerant to the atmosphere Recover any excess charge Operate the unit until the system stabi lizes Adjust charge to conform with charging chart using liq uid pressure and temperature to read chart B Refrigerant Leaks Proceed as follows to repair a refrigerant leak and to charge the unit 1 Locate the leak and ensure that refrigerant system pres sure has been relieved 2 Repair leak following accepted practices NOTE Install a new filter drier in the liquid line whenever the system has been opened for repair 3 Add a small charge of R 22 refrigerant vapor to system and leak test unit 4 Evacuate refrigerant system if additional leaks are not found 5 Charge unit with R 22 refrigerant NOTE Do not vent refrigerant to the atmosphere Recover any excess charge Vill REFRIGERANT SERVICE PORTS Each unit has 3 service ports one on the suction line one on the liquid line and one on the compressor discharge line Be sure caps on the ports are tight LIQUID TEMPERATURE AT LIQUID VALVE C OUTDOOR CONDENSER FAN MUST BE OPERATING OUTDOOR CONDENSER FAN MUST BE OPERATING Hd RIA rmm 4 mun UA DTA HUA 100 150 200 250 300 350 400 LIQUID PRESSURE AT LIQUID
27. oceed as follows to inspect and prepare the unit for initial start up 10 Field electrical power source must agree with unit name plate rating Check voltage imbalance as shown in Table 4 Note 2 Check that all internal wiring connections aretight and that all barriers covers and panels are in place Ensure all service valves are open On 576B units be sure all compressor service valves are backseated Verify that compressor holddown bolts have been loos ened and that flat snubber washers can be rotated by applying finger pressure snug but not tight On 569C and 576B units verify compressor crankcase heater is securely in place Crankcase heater must op erate for a least 24 hours before start up Note that compressor oil level is visible in the sight glass 576B units only Check for leaks in refrigerant system by using soap bubbles and or electronic leak detector Check that liquid line solenoid valveis located at evapo rator coil as shown in Filter Drier and Moisture Indi cator section page 6 Check that both outdoor and indoor units are properly mounted in accordance with installation instructions and applicable codes START UP 1 START UP AND ADJUSTMENTS A CAUTION Complete the required procedures given in the Pre Start U p section before starting the unit Do not jumper any safety devices when operating the unit Do not operate the compressor when the outdoor tem perature
28. ovided in the unit wiring book Table 6 Accessory List ACCESSORY Gage Panel Winter Start Relay Package Weatherprobe I Low Ambient Kit Hail Guard Package 072 Hail Guard Package 090 102 120 Thermostats Subbase PRE START UP WARNING Failure to observe the following warn ings could result in serious personal injury 1 Follow recognized safety practices and wear pro tective goggles when checking or servicing refrig erant system 2 Do not operate compressor or provide any electric power to unit unless compressor terminal cover is in place and secured 3 Donot remove compressor terminal cover until all electrical sources have been disconnected 4 f refrigerant leak is suspected around compres sor terminals recover refrigerant whenever pos sible and relieve all pressure from system before touching or disturbing anything insideterminal box 5 Never attempt to repair soldered connection while refrigerant system is under pressure 6 Do not use torch to remove any component Sys tem contains oil and refrigerant under pressure To remove a component wear protective goggles and proceed as follows a Shut off electrical power to unit b Recover refrigerant Relieve all pressure from system c 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 Pr
29. pecified on unit rating plate 2 Theelectrical supply provided by the utility must be suf ficient to handle load imposed by this unit 3 Refer to the Locate the Unit section on page 2 and Fig 2 and 3 for locations of electrical inlets required clearances and weight distribution based on recom mended support points before setting unit in place 4 This installation must conform with local building codes Refer to local plumbing or wastewater codes and other applicable local codes INSTALLATION NOTE When installing any accessory item see the manu facturer s installation instructions packaged with the acces sory A qualified agency must use factory authorized kits or accessories when modifying this unit The 569C072 090 and 120 units use hermetic compressors The 576B090 102 and 120 units use semi hermetic compres sors Refer to Tables 1A and 1B NOTE If vibration isolators are required for a particular in stallation use corner weight information in Fig 2 to make proper selection 569C072 569C090 CORNER X CONDENSER COIL 576B090 576B102 576B120 CORNER W REAR 3 9 1144 569C120 CORNER Z CORNER Y NOTES 1 Dimensions in are in millimeters 2 See Fig 3 for additional information WEIGHT CHART W X Y Z 1 Kg tb Kg 1e Kg Lb Kg Lb Ka 5 072 320 154 86 39 53 24 77 35 124 56 s69cos0 168 86 39 78 ss 99 45 107
30. screw dockwiseto desired pressure differential E very full turn dock wise increases differential by 1 5 psig 10 3 kPa CONTROL SET POINT ADJUSTMENT NUT PRESSURE DIFFERENTIAL ADJUSTMENT SCREW POWER HEAD VALVE BODY BYPASS PISTON RING BYPASS PISTON DIFFERENTIAL SCREW SEALING CAP CAP MUST BE REPLACED TO PREVENT REFRIGERANT LEAKAGE Fig 13 Compressor Capacity Control Unloader V COMPRESSOR REMOVAL See Tables 1A and 1B for compressor information Follow safety codes and wear safety glasses and work gloves 1 Shut off power tounit Remove unit access panel front of unit 2 Remove refrigerant from system using refrigerant re moval methods described in GTAC II Module 5 Charg ing Recovery Recyding and Reclamation 3 Disconnect compressor wiring at compressor terminal box 4 Remove bolts from suction flange and discharge serv ice valve 576B Units NCAUTION Excessive movement of copper lines at compressor may cause higher levels of vibration when unit is restored to service 5 Remove crankcase heater from compressor base 576B units only 6 Remove compressor holddown bolts 7 Remove compressor from unit 8 Clean system Add new liquid line filter drier 9 Install new compressor in unit 10 Connect suction and discharge lines to compressor E n sure that compressor holddown bolts are in place 11 Connect wiring 12 Install crankcase heater 13
31. sor Capacitor Circuit Breaker Crankcase Heater Compressor Lockout Compressor Motor Compressor Temperature Protection Equipment Ground High Pressure Switch CONTROL 80X FIELD CONTROL WIRING 81 QuVOBH NOI123NNOO g e w e se oe LEGEND FOR FIG 16 AND 17 LPS NEC OFC OFM OL QT TB TDR TRAN Low Pressure Switch x Terminal Marked National Electrical Code Outdoor Condenser Fan Contactor O Terminal Unmarked Outdoor Condenser Fan Motor Overload Relay Terminal Block Quadruple Terminal Factory Wiring Terminal Block m Time Delay Relay Field Power Wiring Transformer COMPONENT ARRANGEMENT 886 Bt GT EQUIP GND FIELD al La WIRING DISCONNECT PER NEC gr stet es a i BLK WHT Or D COMP T5 RN YEL Fig 16 Typical 569C Wiring Schematic and Component Arrangement CONTROL BOX 81 QuYOB NOI123NNOO Se w e suss FIELD CONTROL WIRING COMPONENT ARRANGEMENT 686 Bt G2 03 carr tee 129 GT EQUIP GND FIELO gf i WIRING DISCONNECT PER NEC ee ee ed BLK CH orn YEL BLU Fig 17 Typical 576B Wiring Schematic and Component Arrangement 15 Copyright 1999 Bryant Heating amp Cooling Systems CATALOG NO 5356 902 CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE START UP CHECKLIST 1 PRELIMINARY INFORMATION OUTDOOR MODEL NO SERIAL NO INDOOR AIR HANDLER MANUFACTURER MODE
32. sportation agency Keep unit upright and do not drop Spreader bars are not required if top crating is left on unit Rollers may be used to move unit across a roof Level by us ing unit frame as a reference See Tables 1A and 1B and Fig 4 for additional information Operating weight is shown in Tables 1A and 1B These units are designed for overhead rigging only Rig with packaging assembly and wood bumper strips in place to pre vent unit damage by rigging cable As further protection for coil faces plywood sheets may be placed against sides of unit behind cables Run cables to a central suspension point so that angle from the horizontal is not less than 45 degrees Raise and set unit down carefully If it is necessary to roll unit into position mount unit on lon gitudinal rails using a minimum of 3 rollers Apply force to rails not unit If unit is to be skidded into position place it on a large pad and drag it by the pad Do not apply any force to unit Raise from above to lift unit from rails or pad when unit is in final position Lifting holes are provided in base rails as shown in Fig 4 Refer to rigging instructions on unit IMPORTANT If unit has forklift protection skids be sure to remove forklift protection skids from under unit before set ting unit in place After unit is in position remove shipping materials and rig ging skids Ill COMPRESSOR MOUNTING Compressors are shipped from the factory held down by 4 bo
33. to cool down to reset overload Determine cause for overload opening Compressor cycles on high High pressure switch faulty Replace switch pressure switch Airflow restricted Dirty coil Remove obstruction clean condenser coil Condenser fan on Air recirculating Clear airflow area Noncondensables in system Recover evacuate and recharge as required Refer to Carrier GTAC II Module 5 Charging Recovery Recycling and Reclamation Refrigerant overcharge Recover as required Refrigerant system restrictions Check or replace filter drier expansion valve etc Compressor cycles on high Fan slips on shaft Tighten fan hub screws peer Motor not running Check power and capacitor and 34 hp motor Motor bearings seized Replace motor Motor overload open Check overload rating Check for fan blade obstruction Motor burned out windings open Replace motor Compressor cycles on low Filter drier plugged Replace filter drier Evaporator fan running defective Airflow restricted EONCSHODOR pressure Indoor air dampers closed Check damper operation and position tow suction pressure Compressor runs but cooling Suction pressure low T defective Compressor runs but Heat load excessive Check for open doors or windows cooling insufficient Suction pressure high NOTE See Fig 16 and 17 for component arrangements 14 m o IILL Contactor Compres
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