Bryant R-22 - Manuals

5 ACCESSORY DESCRIPTIONS Refer to Table 1 for an Accessory Usage Guide for AirConditioners and Table 2 for Heat Pumps. Refer to the appropriate section below for a description of each accessory and its use. 1. Crankcase Heater An electric resistance heater which mounts to the base of thecompressor t...

8 LONG LINE GUIDELINE Refer to Residential Piping and Long Line Guideline for air conditioner and heat pump systems using Puron refrigerant orLong Line Guideline for R--22 Air Conditioners and Heat Pumps. CABINET ASSEMBLY Basic Cabinet Designs Certain maintenance routines and repairs require removal...

9 Access Compressor Or Other Internal Cabinet Components NOTE : It is not necessary to remove the top cover to gain access. Removing the top cover may cause grill panels, corner posts,louvers or coils to be damaged. It is recommended to protect thetop cover from damage of tools, belt buckles, etc. w...

10 Legacy RNC and Legacy Line AC Control Box Legacy RNC and Legacy Line HP Control Box Fig. 4 – Legacy RNC and Legacy Line Control Box Identification

11 Labeling The wiring schematic, sub--cooling charging tables withinstructions, and warning labels. Refer to Fig. 5 for label location. Fig. 5 – Figure Labels

12 ELECTRICAL ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death.Exercise extreme caution when working on any electrical components. Shut off all power to system prior to troubleshooting. Some troubleshooting techniques require power to remain on. In thes...

14 Pressure Switches Pressure switches are protective devices wired into control circuit(low voltage). They shut off compressor if abnormally high or low pressures are present in the refrigeration circuit. Puron pressure switches are specifically designed to operate with Puron r systems. R--22 press...

15 Defrost Thermostat Defrost thermostat signals heat pump that conditions are right fordefrost or that conditions have changed to terminate defrost. It is a thermally actuated switch clamped to outdoor coil to sense its temperature. Normal temperature range is closed at 30 _ ± 3 _ F and open at 65 ...

17 14. Remove jumper between DFT and R terminals. Reconnect defrost thermostat leads. Failure to remove jumper causes unit to switch to defrost every 30, 60, or 90 minutes andremain in defrost for full 10 minutes. 15. Replace control box cover. Restore power to unit. If defrost thermostat does not c...

18 Deluxe Defrost Speedup (HK32EA003 CONT.) To initiate a force defrost, speedup pins (J1) must be shorted with a flat head screwdriver for 5 seconds and RELEASED. If the defrostthermostat is open, a short defrost cycle will be observed (actual length depends on Quiet Shift switch position). When Qu...

19 COPELAND SCROLL COMPRESSOR Scroll Gas Flow Compression in the scroll iscreated by the interaction ofan orbiting spiral and a stationary spiral. Gas entersan outer opening as one of thespirals orbits. The open passage is sealed offas gas is drawn into the spiral. By the time the gas arrives atthe ...

20 Noisy Compressor Noise may be caused by a variety of internal and external factors. Careful attention to the “type” of noise may help identify thesource. The following are some examples of abnormal conditions that may create objectionable noise: 1. A gurgling sound may indicate a liquid refrigera...

21 POWER OFF! OHMMETER 0-10 Ω SCALE 5.2 Ω 0.6 Ω 5.8 Ω DEDUCTION: (EXAMPLE) TO DETERMINE INTERNAL CONNECTIONS OF SINGLE- PHASE MOTORS (C,S,R) EXCEPT SHADED-POLE ? ? ? 1 2 2 3 1 3 1 2 3 2 1 3 (GREATEST RESISTANCE) 5.8 Ω (OHM) (SMALLEST RESISTANCE) 0.6 Ω (REMAINING RESISTANCE) 5.2 Ω 2 2 3 1 IS COMMON (...

22 Ground Circuit To determine if a wire has broken or come in direct contact with shell, causing a direct short to ground, follow these steps: 1. Allow crankcase heaters to remain on for several hours before checking motor to ensure windings are not saturatedwith refrigerant. 2. Using an ohmmeter o...

23 Table 4—Oil Charging REFRIGERANT COMPRESSOR MODEL RECHARGE (FL OZ) OIL TYPE COPELAND PURON ZP16 --- 26 38 3MA POE (32 cSt) PURON ZP32 --- 41 42 3MA POE (32 cSt) PURON P54 53 3MA POE (32 cSt) PURON --- 2 STAGE ZPS20, ZPS30, ZPS40 34 3MAF --- POE PURON --- 2 STAGE ZPS49, ZPS51 52 3MAF --- POE BRIST...

24 Service Valves and Pumpdown PERSONAL INJURY AND UNIT DAMAGE HAZARD Failure to follow this warning could result in personal injury or equipment damage.Never attempt to make repairs to existing service valves. Unit operates under high pressure. Damaged seats and o--rings should not be replaced. Rep...

25 Heating Piston (AccuRater r ) -- Heat Pumps Only In this product line, AccuRater pistons are used to meter refrigerant for heat pump heating mode only. All indoor coils are suppliedwith a bi--flow TXV for metering in the cooling mode. AccuRater r piston has a refrigerant metering hole through it....

26 Reversing Valve In heat pumps, changeover between heating and cooling modes is accomplished with a valve that reverses flow of refrigerant insystem. This reversing valve device is easy to troubleshoot and replace. The reversing valve solenoid can be checked with poweroff with an ohmmeter. Check f...

27 Liquid Line Filter Drier Filter driers are specifically designed for R--22 or Puron r refrigerant. Only operate with the appropriate drier using factory authorized components.It is recommended that the liquid line drier be installed at theindoor unit. Placing the drier near the TXV allows additio...

28 Accumulator The accumulator is specifically designed to operate with Puron r or R22 respectfully; use only factory--authorized components. Under some light load conditions on indoor coils, liquid refrigerant is present in suction gas returning to compressor. The accumulatorstores liquid and allow...

30 Replacing TXV on an Indoor Coil (pre--2006) 1. Pump system down to 2 psig and recover refrigerant.2. Remove coil access panel and fitting panel from front of cabinet. 3. Remove TXV support clamp using a 5/16--in. nut driver. Save the clamp. 4. Remove R--22 TXV using a backup wrench on flare conne...

31 REFRIGERATION SYSTEM REPAIR Leak Detection New installations should be checked for leaks prior to complete charging. If a system has lost all or most of its charge, system must be pressurized again to approximately 150 psi minimum and 375psi maximum. This can be done by adding refrigerant using n...

32 Compressor Removal and Replacement Once it is determined that compressor has failed and the reasonestablished, compressor must be replaced. PERSONAL INJURY HAZARD Failure to follow this caution may result in personal injury.Turn off all power to unit before proceeding. Wear safety glasses, protec...

33 Evacuation Proper evacuation of the system will remove non--condensiblesand assure a tight, dry system before charging. The 2 methods used to evacuate a system are the deep vacuum method and the triple evacuation method. Deep Vacuum Method The deep vacuum method requires a vacuum pump capable of ...

34 TROUBLESHOOTING WITH SUPERHEAT This troubleshooting routine was developed to diagnose coolingproblems using superheat in TXV systems. It is effective on heat pumps in cooling mode as well as air conditioners. The systemmust utilize a TXV as the expansion device in cooling mode. Basic DiagnosticsN...

35 High Superheat with Normal or High Suction PressureNOTE : Normal to High suction pressure is considered for R--22: > ∼ 65 psig, Puron: > ∼ 110 psig. An application issue or other system component failure typically causes this condition. 15. Check airflow, sensing bulb tightness, orientation...

36 Table 6—Puron System Suction Pressure Drop Nominal Size (Btuh) Suction Line OD (in.) Pressure Drop (psi/100 ft) Suction Velocity fpm Puron Suction Line Pressure Drop (psig) Total Equivalent Line Length (ft) 20 50 80 100 125 150 175 200 225 250 18000 18000 18000 1/2 9.9 1649 2 5 8 10 12 15 17 20 2...

37 Table 7—R--22 System Suction Pressure Drop Nominal Size (Btuh) Line OD (in.) Pressure Drop (psi/100 ft) Suction Velocity Fpm R --- 22 Suction Line Pressure Drop (psig) Total Equivalent Line Length (ft) 20 50 80 100 125 150 175 200 225 250 18000 18000 18000 18000 5/8 13.6 2563 3 7 11 14 17 20 24 2...

39 Table 9—R--22 Refrigerant Pressure Temperature Relationship psig ° F psig ° F psig ° F psig ° F psig ° F psig ° F psig ° F 7 --25.9 71 41.7 135 76.2 199 101.1 263 120.9 327 137.5 391 152.0 8 --24.0 72 42.3 136 76.7 200 101.4 264 121.1 328 137.8 392 152.2 9 --22.1 73 43.0 137 77.1 201 101.7 265 12...

40 Table 10—Puron Subcooling Chart 2 4 6 8 10 12 14 16 18 20 200 70 68 66 64 62 60 58 56 54 52 50 210 73 71 69 67 65 63 61 59 57 55 53 220 76 74 72 70 68 66 64 62 60 58 56 230 79 77 75 73 71 69 67 65 63 61 59 240 82 80 78 76 74 72 70 68 66 64 62 250 84 82 80 78 76 74 72 70 68 66 64 260 87 85 83 81 7...

44 TWO--STAGE (286ANA, 288ANA, 180ANA, 187ANA) Application Guidelines Bryant designed and tested the two--stage air conditioner and heatpump products with Puron refrigerant to operate at a minimum outdoor operating ambient in cooling mode at 55 _ F without low ambient cooling enabled and the maximum...

45 Airflow Selections for 187ANA / 286ANA / 180ANA024,36,48 / 180ANA060 / 288ANA024,36,48, 60 Using Non--Communicating (Non--Evolution) Thermostats Airflow Selection for 315AAV/355AAV Furnaces The 315AAV/355AAV variable--speed furnaces provide high--and low--stage blower operation to match the capac...

46 S The ODF fan delay defeat can be toggled by shorting theforced defrost pins for >15 seconds while in the standbymode (status LED on solid). The LED will start to flash when the toggle has taken place. S Status code 4 shows the fan delay defeat is active (nodelay) S Status code 3 shows that it...

48 Fan Motor Fan motor rotates the fan blade that either draws or blows airthrough outdoor coil to exchange heat between refrigerant and air. Motors are totally enclosed to increase reliability. This also eliminates need for rain shield. ELECTRICAL SHOCK HAZARD Failure to follow this warning could r...

49 Time Delays The unit time delays include: S Five minute time delay to start cooling or heatingoperation when there is a call from the thermostat or user interface. To bypass this feature, momentarily short andrelease Forced Defrost pins. S Five minute compressor re--cycle delay on return from abr...

50 CONTROL BOX Contactor And Capacitor Removal of the information plate exposes the control components.Both air conditioner and heat pump control boxes will appear to be nearly identical. There are two contactors, two capacitors, a control board and a compressor start assist. The contactors are iden...

51 UTILITY RELAY * UTILITY SIGNAL OPEN RELAY * SUPPLIED BY UTILITY PROVIDER MODEL PLUG LLS Liquid Line Solenoid MODEL PLUG A06525/.A06526 Fig. 36 – 2--Stage Control Board TROUBLESHOOTING Troubleshooting (HK38EA003, 008, 010, 015) circuit boards. The Evolution Series outdoor units all use the same co...

53 Unloader Test Procedure The unloader is the compressor internal mechanism, controlled bythe DC solenoid, that modulates between high and low stage. If it is suspected that the unloader is not working, the following methods may be used to verify operation. 1. Operate the system and measure compres...

54 Status Codes Table 17 shows the status codes flashed by the amber status light. Most system problems can be diagnosed by reading the status code as flashed by the amber status light on the control board.The codes are flashed by a series of short and long flashes of the status light. The short fla...

57 Airflow Selections for 187B / 286B / 180B /289B Using Non--Communicating (Non--Evolution) Thermostats Airflow Selection for 315AAV/355AAV Furnaces The 315AAV/355AAV variable--speed furnaces provide high--and low--stage blower operation to match the capacities of thecompressor at high and low stag...

60 The outdoor Integral Control Motor (ECM), is a variable--speedmotor which operates from 450 to 850 rpm. The motor is a dc permanent magnet--type motor with the electronic controlsintegrated into its rear cover. The control package includes a small diode bridge, capacitors, and power switching dev...

61 Muffler, Accumulator, Reversing Valve (RVS) The Puron r two--stage air conditioners and heat pumps have a compressor discharge line muffler, to dampen sound pressure pulsations.The Puron r two--stage heat pumps have a specifically designed reversing valve, for Puron r application and an accumulat...

62 UTILITY RELAY * UTILITY SIGNAL OPEN RELAY * SUPPLIED BY UTILITY PROVIDER MODEL PLUG LLS Liquid Line Solenoid MODEL PLUG A06525/.A06526 Fig. 45 – 2--Stage Control Board TROUBLESHOOTING Troubleshooting (HK38EA015) circuit board The Evolution Series outdoor units all use the same control board. A mo...

67 TWO STAGE NON--COMMUNICATING 127A/226A These units are a low cost 2--stage option that isnon--communicating utilizing 2 stage scroll technology. These units require Performance Boost furnace (313AAV, 353AAV),variable speed furnace (355AAV, 315AAV) or new model variable speed fan coil (FV4C). Vari...

69 CHECK CHARGE Factory charge amount and desired subcooling are shown on unit rating plate. Charging method is shown on information plate insideunit. To properly check or adjust charge, conditions must be favorable for subcooling charging. Favorable conditions exist when the outdoor temperature is ...

70 TWO STAGE COMMUNICATING 167A/266A These units provide an Evolution capable 2 stage product in thePreferred line utilizing 2 stage scroll technology. These units are designed using the full--coil cabinet with is currently used for theLegacy Line products. Although the deluxe cabinet used in other ...

71 GENERAL INFORMATION Evolution Controlled Low Ambient Cooling This unit is capable of low ambient cooling down to 0 ° F (--17.8 ° C) without a kit ONLY when using an Evolution Control. A low ambient kit is not required for Evolution controlled low ambient o p eratio n . T h e E v o lu tio n C o n ...

72 Quiet Shift Quiet Shift is a field--selectable defrost mode which may eliminateoccasional noise that could be heard at the start of the defrost cycle and restarting of the heating cycle. On a non--communicating system, this feature must be enabled by selecting the 3rd positionof the 3--position d...

73 SYSTEM FUNCTIONS AND SEQUENCE OF OPERATION The 266A models utilize either an Evolution Communicating UserInterface or a 2-stage cooling indoor thermostat. With a call for first stage cooling, the outdoor fan and low-stage compressor areenergized. If low-stage cannot satisfy cooling demand, high-s...

75 and OCT faults will not be cleared. The code will continue to beflashed.The control is shipped with the brownout active. The change instatus is remembered until toggled to a new status. A power down/power up sequence will not reset the status. it may be necessary to do the toggle twice to cycle t...

76 The thermistor comparison is not performed during low ambientcooling or defrost operation. Failed Thermistor Default Operation Factory defaults have been provided in the event of failure of outdoor air thermistor (OAT) and/or outdoor coil thermistor(OCT).If the OAT sensor should fail, low ambient...

78 CARE AND MAINTENANCE To assure high performance and minimize possible equipment malfunction, it is essential that maintenance be performedperiodically on this equipment. The frequency with which maintenance is performed is dependent on such factors as hours of operation, geographic location, and ...

83 INDEX OF TABLES DESCRIPTION TABLE # Required Field--Installed Accessories for Air Conditioners 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Required Field--Installed Accessories for Heat Pumps 2 . . . . . . . . . ....