Goodman ASX Service Instructions Manual
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Goodman ASX Service Instructions Manual

Split system heat pumps with r-410a refrigerant
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Service Instructions

SSX, ASX, GSX, DSX Condensing Units,
SSZ, ASZ, GSZ DSZ Split System Heat Pumps
with R-410A Refrigerant
Blowers, Coils, & Accessories
This manual is to be used by qualified, professionally trained HVAC techni-
cians only. Goodman does not assume any responsibility for property
RS6200006r11
damage or personal injury due to improper service procedures or services
performed by an unqualified person.
April 2009
Copyright
© 2006 - 2009 Goodman Manufacturing Company, L.P.

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  • Page 1: Service Instructions

    Service Instructions SSX, ASX, GSX, DSX Condensing Units, SSZ, ASZ, GSZ DSZ Split System Heat Pumps with R-410A Refrigerant Blowers, Coils, & Accessories This manual is to be used by qualified, professionally trained HVAC techni- cians only. Goodman does not assume any responsibility for property...

  • Page 2: Table Of Contents

    IMPORTANT INFORMATION IMPORTANT INFORMATION ... 2 - 3 PRODUCT IDENTIFICATION ... 4 - 11 ACCESSORIES ... 13 - 23 PRODUCT DESIGN ... 25 - 27 SYSTEM OPERATION ... 28 - 32 Pride and workmanship go into every product to provide our customers with quality products. It is possible, however, that during its lifetime a product may require service.

  • Page 3: Safe Refrigerant Handling

    IMPORTANT INFORMATION SAFE REFRIGERANT HANDLING While these items will not cover every conceivable situation, they should serve as a useful guide. WARNING EFRIGERANTS ARE HEAVIER THAN AIR. HEY CAN "PUSH OUT" THE OXYGEN IN YOUR LUNGS OR IN ANY ENCLOSED SPACE. POSSIBLE DIFFICULTY IN BREATHING OR DEATH: •...

  • Page 4: Product Identification

    PRODUCT IDENTIFICATION M odel # G oodman S plit Z R410A Heat Pum p 13 Seer R410A heat pump units. Initial GSZ13**1AA release with Regal Beloit motor. G oodman S plit Z R410A Heat Pum p 13 Seer R410A heat pump units. Initial GSZ13**1AB release with Broad Ocean m otor.
  • Page 5 PRODUCT IDENTIFICATION Model # A mana® Brand S plit Z R410A heat pump 13 Seer heat pump units. Initial release ASZ130**1AA of Amana® Brand 13 SEER Heat Pump R410A. A mana® Brand S plit Z R410A heat pump 14 Seer heat pump units. Initial release ASZ140**1AA of Amana®...
  • Page 6 PRODUCT IDENTIFICATION Model # G oodman S plit X Condenser 13 Seer condensing units. Introduction of Goodman 13 GSX130**1AA SEER R-410A Condensers with Regal Beloit motors Goodman Split X Condenser 13 Seer condensing units. Introduction of Goodman 13 GSX130**1AB SEER R-410A Condensers with Broad Ocean motors. G oodman S plit X Condenser 13 Seer condensing units.
  • Page 7 PRODUCT IDENTIFICATION Model # Amana® Brand S plit X Condenser 13 Seer condensing units. Initial release new models ASX130**1AA of Amana® Brand Deluxe 13 SEER AC R410A conditioners. Amana® Brand S plit X Condenser 13 Seer condensing units. Introduction of Amana® ASX130**1BA Brand 13 SEER R-410A Condensers, using Quantum Leap Coils.
  • Page 8 PRODUCT IDENTIFICATION Model # A Single Piece R Multi-Position PSC Motor Unpainted Flowrater Introducation ARUF****16AA of new 13 SEER Air Handler Models. All Models will be suitable for use with R- 22 and R-410A A Single Piece R Multi-Position PSC Motor Unpainted Flowrater.Revision ARUF364216AB replaces the current spot welded blower housing with the same cinched or crimped design used on the 80% furnace line.
  • Page 9 PRODUCT IDENTIFICATION Model # AEPF****16AA AEPF****16BA AEPF****16BB AEPF****16CA AEPF****1BA AEPF313716AA ASPF313716AA ASPF****16AA ASPF****16BA AWUF****1AA AWUF****16AA AWUF3005-101AA AWUF****1BA AWUF370**16AA AWUF****16BA ACNF****1AA ACNF****16AA ACNF****1BA AH**-1* Single Piece Air Handlers A Single Piece E Multi-Position Variable-Speed P ainted F lowrator. Introducation of new 13 SEER Air Handler Models. All Models will be suitable for use with R-22 and R-410A A Single Piece E Multi-Position Variable-Speed P ainted F lowrator.
  • Page 10 PRODUCT IDENTIFICATION Model # M odular B lower R Multi-Position PSC Motor. Introduces module blower with PSC MBR****AA-1AA blower motor. M odular B lower E Multi-Position Variable-Speed. Introduces module blower with MBE****AA-1AA variable speed blower motor. M odular B lower E Multi-Position Variable-Speed.Revision introduces new models MBE****AA-1BA adding lower kw hit kits on the S&R plate Model #...
  • Page 11 PRODUCT IDENTIFICATION BRAND: ® G: Goodman (Standard Feature Set) S: Goodman® (High Feature Set) A: Amana® Brand Deluxe D: Deluxe Goodman® PRODUCT FAMILY: S: Split System PRODUCT TYPE: X: Condenser R-410A Z: Heat Pump R-410A SEER: SEER Rating NOMINAL CAPACITY: 018: 1.5 Tons 024: 2 Tons 030: 2.5 Tons...
  • Page 12 PRODUCT IDENTIFICATION PRODUCT TYPE: C: Indoor Coil CABINET FINISH: U: Unpainted P: Painted N: Unpainted Case APPLICATION A: Upflow/Downflow Coil H: Horizontal A Coil S: Horizontal Slab Coil DESIGN SERIES: MB: Modular Blower MOTOR TYPE: R: Constant Speed E: Variable Speed AIRFLOW DELIVERED 08: 800 CFM 12: 1200 CFM...
  • Page 13 PRODUCT IDENTIFICATION PRODUCT TYPE: A: Air Handler CABINET FINISH: U: Unpainted P: Paited N: Uncased APPLICATION C: Ceiling Mount PSC Motor D: Downflow PSC Motor E: Multi-Position Varible-Speed Motor S: Energy-Efficient Motor R: Multi-Position PSC Motor T: Coated Coils W: Wall Mount PSC Motor All Airhandlers use DIRECT DRIVE MOTORS.

  • Page 14: Accessories

    ACCESSORIES ASX13 Model Description ASC01 Anti-Short Cycle Kit CSR-U-1 Hard-start Kit CSR-U-2 Hard-start Kit CSR-U-3 Hard-start Kit Freeze Protection Kit FSK01A TX2N4³ TXV Kit TXV Kit TX3N4 TXV Kit TX5N4 GSX13 Model Description ASC01 Anti-Short Cycle Kit CSR-U-1 Hard-start Kit CSR-U-2 Hard-start Kit CSR-U-3...
  • Page 15 ACCESSORIES DSX/SSX16 Model Description ASC01 Anti-Short Cycle Kit CSR-U-1 Hard-start Kit CSR-U-2 Hard-start Kit CSR-U-3 Hard-start Kit FSK01A Freeze Protection Kit TX2N4³ TXV Kit TX3N4³ TXV Kit TX5N4³ TXV Kit Installed on indoor coil Required for heat pump applications where ambient temperatures fall below 0°F with 50% or higher relative humidy. ³...
  • Page 16 ACCESSORIES ASX18 Model Description ASC01 Anti-Short Cycle Kit CSR-U-1 Hard-start Kit CSR-U-2 Hard-start Kit CSR-U-3 Hard-start Kit FSK01A Freeze Protection Kit TX2N4³ TXV Kit TX3N4³ TXV Kit TX5N4³ TXV Kit Installed on indoor coil Required for heat pump applications where ambient temperatures fall below 0°F with 50% or higher relative humidy. ³...
  • Page 17 ACCESSORIES ASZ13 Model Description AFE18-60A All-Fuel Kit ASC01 Anti-Short Cycle Kit CSR-U-1 Hard-start Kit CSR-U-2 Hard-start Kit CSR-U-3 Hard-start Kit Freeze Protection Kit FSK01A OT/EHR18-60 Emergency Heat Relay kit OT18-60A² Outdoor Thermostat w/ Lockout Stat TX2N4³ TXV Kit TX3N4³ TXV Kit TX5N4³...
  • Page 18 ACCESSORIES DSZ/SSZ16 Model Description AFE18-60A All-Fuel Kit ASC01 Anti-Short Cycle Kit CSR-U-1 Hard-start Kit CSR-U-2 Hard-start Kit CSR-U-3 Hard-start Kit Freeze Protection Kit FSK01A OT/EHR18-60 Emergency Heat Relay Kit OY/EH R18-60 Emergency Heat Relay Kit OT18-60A² Outdoor Thermostat w/ Lockout Stat TX2N4³...
  • Page 19 ACCESSORIES ASZ18 Model Description AFE18-60A All-Fuel Kit ASC01 Anti-Short Cycle Kit CSR-U-1 Hard-start Kit CSR-U-2 Hard-start Kit CSR-U-3 Hard-start Kit Freeze Protection Kit FSK01A OT/EHR18-60 Emergency Heat Relay Kit OY/EH R18-60 Emergency Heat Relay Kit OT18-60A² Outdoor Thermostat w/ Lockout Stat TX2N4³...
  • Page 20 ACCESSORIES EXPANSION VALVE KITS 1/4 FLARE CONNECTION EVAPORATOR COIL REMOVE BEFORE INSTALLING EXPANSION VALVE 1/4' FLARE CONNECTION EVAPORATOR COIL REMOVE BEFORE INSTALLING SEAL SUPPLIED W/ KIT EXPANSION VALVE OUTDOOR THERMOSTAT & EMERGENCY HEAT RELAY 315º Set Point Adjustment Screw BULB SUCTION LINE SEAL SUPPLIED W/ KIT SEAL SUPPLIED W/ KIT...
  • Page 21 ACCESSORIES ANTI-SHORT -CYCLE CONTROL KIT FREEZE THERMOSTAT Wire Nut Wire Nut Install Line Thermostat Here ASC01A YELLOW 1 CONTACTOR BLACK 1 FSK01A Install Line Thermostat Here Wire Nut Wire Nut SHORT CYCLE PROTECTOR T2 T1 THERMOSTAT L2 L1 WIRE UNIT TERMINAL BLACK 1 BOARD...
  • Page 22 ACCESSORIES COIL MODEL TX2N4 TXV KIT CA*F18246* CA*F30306* CA*F36426* CHPF18246* CHPF30306* CHPF36426* CSCF1824N6* CSCF303N6* CSCF3642N6* BLOWER NO HEAT HKR-03* MBR0800AA-1AA MBR1200AA-1AA MBR1600AA-1AA MBR2000AA-1AA MBE1200AA-1AA MBE1600AA-1AA MBE2000AA-1AA MBE1200AA-1BA MBE1600AA-1BA MBE2000AA-1BA X = Allowable combinations - = Restricted combinations ELECTRIC HEAT KIT APPLICATIONS - ARPF ARPF1824 1/16 HKR-03*...
  • Page 23 ACCESSORIES ELECTRIC HEAT KIT APPLICATIONS - ARUF ARUF1729 1/16 HKR-03* HKR-05*, HKR-05C* HKR-06* HKR-08*, HKR-08C* HKR-10*, HKR-10C* HKR-15C* HKR-20C* HKR-21C* ^ HKR3-15* ^ HKR3-20* * Revision level that may or may not be designated C Circuit breaker option ^ Heat kit requires three-phase power supply Air handler must either be on medium or high speed Air handler must be on high speed For static pressure of 0.6 or higher, air handler must be on medium or high speed...
  • Page 24 ACCESSORIES ELECTRIC HEAT KIT APPLICATIONS - AEPF HKR-05*, HKR-05C* HRK-08*, HKR-08C HKR-10*, HKR-10C HKR-15C* HKR-20C* HKR-21C Revision level that may or may not be designated C Circuit Breaker option This heater kit can be used ONLY for 1000 CFM or higher applications This heater kit can be used ONLY for 1200 CFM or higher applications ELECTRIC HEAT KIT APPLICATIONS - ASPF HKR-03*...

  • Page 25: Product Design

    The total refrigerant charge for a normal installation is factory installed in the condensing unit. GSX, GSZ, ASX, ASZ, SSX, SSZ and DSX, DSZ models are available in 1 1/2 through 5 ton sizes and use R-410A refrigerant.
  • Page 26 PRODUCT DESIGN The ASX [16 & 18], ASZ [16 & 18], DSX16 and DSZ16 series split system units use a two-stage scroll compressor. The two-step modulator has an internal unloading mechanism that opens a bypass port in the first compression pocket, effectively reducing the displacement of the scroll.

  • Page 27: Capacity Control

    PRODUCT DESIGN CAPACITY CONTROL During the compression process, there are several pockets within the scroll that are compressing gas. Modulation is achieved by venting a portion of the gas in the first suction pocket back to the low side of the compressor thereby reducing the effective displacement of the compressor.

  • Page 28: System Operation

    SYSTEM OPERATION COOLING The refrigerant used in the system is R-410A. It is a clear, colorless, non-toxic and non-irritating liquid. R-410A is a 50:50 blend of R-32 and R-125. The boiling point at atmo- spheric pressure is -62.9°F. A few of the important principles that make the refrigeration cycle possible are: heat always flows from a warmer to a cooler body.

  • Page 29: Defrost Cycle

    SYSTEM OPERATION DEFROST CYCLE The defrosting of the outdoor coil is jointly controlled by the defrost control board and the defrost thermostat. Solid State Defrost Control During operation the power to the circuit board is controlled by a temperature sensor, which is clamped to a feeder tube entering the outdoor coil.

  • Page 30: Cooling Cycle

    SYSTEM OPERATION COOLING CYCLE Indoor Coil Accumulator HEATING CYCLE Indoor Coil Accumulator Reversing Valve (Energized) Thermostatic Expansion Valve Bi-Flow Filter Dryer Check Valve Reversing Valve (De-Energized) Thermostatic Expansion Valve Bi-Flow Filter Dryer Check Valve Outdoor Coil Outdoor Coil...
  • Page 31 SYSTEM OPERATION EXPANSION VALVE/CHECK VALVE ASSEMBLY EXPANSION VALVE/CHECK VALVE ASSEMBLY IN COOLING OPERATION IN HEATING OPERATION ® Most expansion valves used in current Amana Brand Heat Pump products use an internally checked expansion valve. This type of expansion valve does not require an external check valve as shown above. However, the principle of operation is the same.
  • Page 32 SYSTEM OPERATION AFE18-60A CONTROL BOARD DESCRIPTION The AFE18 control is designed for use in heat pump applica- tions where the indoor coil is located above/downstream of a gas or fossil fuel furnace. It will operate with single and two stage heat pumps and single and two stage furnaces. The AFE18 control will turn the heat pump unit off when the furnace is turned on.

  • Page 33: Troubleshooting Chart

    TROUBLESHOOTING CHART Com plaint No Cooling P OS SIBLE CAUSE DOTS IN ANALYSIS GUIDE INDICATE "P OS SIBLE CAUSE" • Pow er Failure • • • Blow n Fus e • Unbalanced Pow er, 3PH • Loose Connec tion • • • • • • Shorted or Broken Wires Open Fan Ov erload •...

  • Page 34: Service Table Of Contents

    S-40 MBR/ARUF Electronic Blower Time Delay with Single Stage Air Conditioners & Heat Pumps ... 52 S-41 MBE/AEPF with GSX, SSX, ASX, DSX Air Conditioners ... 54 S-41A MBE/AEPF with GSZ, SSZ, ASZ Heat Pumps ... 55 S-60 Electric Heater (optional item) ... 58 S-61A Checking Heater Limit Control(S) ...

  • Page 35: Checking Voltage

    SERVICING S-1 CHECKING VOLTAGE 1. Remove outer case, control panel cover, etc., from unit being tested. With power ON: WARNING Line Voltage now present. 2. Using a voltmeter, measure the voltage across terminals L1 and L2 of the contactor for the condensing unit or at the field connections for the air handler or heaters.

  • Page 36: S-3B Cooling Anticipator

    SERVICING 4. Check the continuity of the thermostat and wiring. Repair or replace as necessary. Resistance Heaters 1. Set room thermostat to a higher setting than room temperature so both stages call for heat. 2. With voltmeter, check for 24 volts at each heater relay. Note: BBA/BBC heater relays are DC voltage.

  • Page 37: Checking Transformer & Control Circuit

    SERVICING S-4 CHECKING TRANSFORMER AND CONTROL CIRCUIT HIGH VOLTAGE! Disconnect ALL power before servicing or installing. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death. A step-down transformer (208/240 volt primary to 24 volt sec- ondary) is provided with each indoor unit.

  • Page 38: Checking Contactor And/Or Relays

    SERVICING S-7 CHECKING CONTACTOR AND/OR RELAYS HIGH VOLTAGE! Disconnect ALL power before servicing or installing. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death. The compressor contactor and other relay holding coils are wired into the low or line voltage circuits.

  • Page 39: Copeland Comfort™ Alert Diagnositics

    5. If not as above, replace the relay. S-10 COPELAND COMFORT ALERT™ DIAGNOSTICS Applies to ASX /ASZ and DSX/DSZ units Comfort Alert™ is self-contained with no required external sensors and is designed to install directly into the electrical box of any residential condensing unit that has a Copeland Scroll™...

  • Page 40: Diagnostics Table

    SERVICING Status LED Status LED Description Green “POWER” Module has power Red “TRIP” Thermostat demand signal Y1 is present, but the compressor is not running Yellow “ALERT” Long Run Time Flash Code 1 Compressor is running extremely long run cycles Yellow “ALERT”...

  • Page 41: Checking Loss Of Charge Protector

    SERVICING S-11 CHECKING LOSS OF CHARGE PROTECTOR (Heat Pump Models) The loss of charge protector senses the pressure in the liquid line and will open its contacts on a drop in pressure. The low pressure control will automatically reset itself with a rise in pressure.

  • Page 42: S-15A Resistance Check

    SERVICING The discharge check valve closes off high side pressure to the compressor after shut down allowing equalization through the scroll flanks. Equalization requires only about ½ second. To prevent the compressor from short cycling, a Time Delay Relay (Cycle Protector) has been added to the low voltage circuit.

  • Page 43: S-16A Checking Fan & Blower Motor

    SERVICING S-16A CHECKING FAN AND BLOWER MOTOR WINDINGS (PSC MOTORS) The auto reset fan motor overload is designed to protect the motor against high temperature and high amperage condi- tions by breaking the common circuit within the motor, similar to the compressor internal overload. However, heat gener- ated within the motor is faster to dissipate than the compres- sor, allow at least 45 minutes for the overload to reset, then retest.
  • Page 44 SERVICING...
  • Page 45 SERVICING...

  • Page 46: S-16C Checking Ecm Motor Windings

    SERVICING S-16C CHECKING ECM MOTOR WINDINGS HIGH VOLTAGE! Disconnect ALL power before servicing or installing. Multiple power sources may be present. Failure to do so may cause property damage, personal injury or death. 1. Disconnect the 5-pin and the 16-pin connectors from the ECM power head.
  • Page 47 SERVICING Cooling/Heat Pump Operation Model Switch 5 Switch 6 MBE1200 MBE1600 MBE2000 Table 3 THERMOSTAT “FAN ONLY” MODE During Fan Only Operations, the CFM output is 30% of the cooling setting. CFM TRIM ADJUST Minor adjustments can be made through the dip switch combination of 7-8.

  • Page 48: S-16E Blower Performance Data

    SERVICING S-16E BLOWER PERFORMANCE DATA SPEED STATIC HIGH MEDIUM NOTE: External static is for blower @ 230 Volts. It does not include Coil, Air Filter or Electric Heaters. S-16F CHECKING GE X13 The GE X13 Motor is a one piece, fully encapsulated, 3 phase brushless DC (single phase AC input) motor with ball bearing construction.

  • Page 49: Checking Compressor Windings

    SERVICING S-17 CHECKING COMPRESSOR WARNING Hermetic compressor electrical terminal venting can be dangerous. When insulating material which supports a hermetic compressor or electrical terminal suddenly disintegrates due to physical abuse or as a result of an electrical short between the terminal and the compressor housing, the terminal may be expelled, venting the vapor and liquid contents of the compressor housing and system.

  • Page 50: S-17C Unloader Test

    SERVICING Do not use a low voltage output instrument such as a volt- ohmmeter. HI-POT COMPRESSOR GROUND TEST 3. If a ground is indicated, then carefully remove the com- pressor terminal protective cover and inspect for loose leads or insulation breaks in the lead wires. 4.

  • Page 51: Testing Crankcase Heater (Optional Item)

    SERVICING 3. Connect good capacitors of the right MFD and voltage rating into the circuit as shown. 4. With power ON, close the switch. WARNING Line Voltage now present. A. If the compressor starts and continues to run, the cause for failure is somewhere else in the system.

  • Page 52: Checking Heater Limit Control(S)

    SERVICING 3. Check the temperature at which the control opens its contacts by raising the temperature of the control. Part # 0130M00009P which is used on 2 and 2.5 ton units should open at 60°F ± 5°F. Part # 0130M00001P which is used on 3 thru 5 ton units should open at 75°F ±...
  • Page 53 SERVICING 1.4 The compressor and condenser fan are turned off and after a 65 second delay off, the relay on the EBTDR board is de-energized and the blower is turned off. 2.0 Heating Operation 2.1 On a demand for heat, the room thermostat energizes “W1”...

  • Page 54: Mbe/Aepf With Gsx, Ssx, Asx, Dsx Air Conditioners

    MBE/AEPF WITH SINGLE STAGE GSX, ASX AND SSX CONDENSERS When used with a single stage GSX, SSX and ASX condens- ers, dip switch #4 must be set to the on position on the VSTB inside the MBE/AEPF. The “Y” output from the indoor thermostat must be connected to the yellow wire labeled “Y/...

  • Page 55: Cooling Operation

    SERVICING remove the 24Vac from HR2. The contacts on HR2 will open between 30 to 70 seconds and heater elements #3 and #4 will be turned off and the blower motor will change to low speed. On most digital/electronic thermostats, “W2” will re- main energized until the first stage demand “W1”...
  • Page 56 MBE/AEPF WITH TWO STAGE ASX & DSX CONDENSERS 1.0 COOLING OPERATION When used with the ASX & DSX two stage condens- ers, dip switch #4 must be set to the OFF position on the VSTB inside the MBE/AEPF. The “Y1” output from the indoor thermostat must be connected to the purple wire labeled “Ylow/Y1”...
  • Page 57 SERVICING For the 3 and 4 heater elements to operate on a second stage heat demand, the PJ4 jumper on the VSTB inside the MBE/AEPF must be cut. With the PJ4 jumper cut, the VSTB will run the blower motor on low speed on a “W1” only demand.

  • Page 58: Electric Heater (Optional Item)

    SERVICING The outdoor fan will change to high speed operation. If the “Y2” demand is present and becomes satisfied, the thermostat will remove the “Y2” demand and the VSTB will remove the 24Vac from “Y/Y2” at the heat pump. The blower will drop to 60% of the programmed cfm and the outdoor fan will change to low speed.

  • Page 59: S-61A Checking Heater Limit Control(S)

    SERVICING Alternately, the system CFM can be determined by operating the electric heaters and indoor blower WITHOUT having the compressor in operation. Measure the temperature rise as close to the blower inlet and outlet as possible. If other than a 240V power supply is used, refer to the BTUH CAPACITY CORRECTION FACTOR chart below.

  • Page 60: Refrigeration Repair Practice

    SERVICING 2. Using an ohmmeter, test across the fuse link for continu- ity - no reading indicates the link is open. Replace as necessary. NOTE: The link is designed to open at approximately 333°F. DO NOT WIRE AROUND - determine reason for failure. S-62 CHECKING HEATER ELEMENTS WARNING Disconnect ALL power before servicing.

  • Page 61: Charging

    SERVICING IMPORTANT NOTE: Because of the potential damage to compressors, do not allow suction pressure at service valve to drop below 20 PSIG when pumping unit system down for repair. Outdoor section, depending on line set length and amount of charge in system, may not be able to hold the entire system charge.

  • Page 62: Checking Compressor Efficiency

    SERVICING CAUTION Use refrigerant certified to AHRI standards. Used refrigerant may cause compressor damage and will void the warranty. Most portable machines cannot clean used refrigerant to meet AHRI standards. CAUTION Operating the compressor with the suction valve closed will void the warranty and cause serious compressor damage.

  • Page 63: Asx14, Asz13, Gsz13 Units

    SERVICING S-105A PISTON CHART FOR ASX13, GSX13, SSX14, ASX14, ASZ13, GSZ13 units Remote Orifice Condenser Size Heat Pump 0.049 A/GSX130181A A/GSZ130181 A/GSX130181B A/GSZ130241 0.051 A/GSX130241A 0.053 A/GSZ130301 A/GSX130241B 0.057 A/GSZ130361 A/GSX130301 A/GSZ130421 0.059 A/GSX130301B 0.061 A/GSZ130481 0.068 A/GSX130361A A/GSZ130601 A/GSX130361B SSZ140361A* 0.070 0.074...
  • Page 64 SERVICING °F PSIG PSIG -37.7 114.0 37.8 -34.7 38.7 116.0 -32.0 118.0 39.5 -29.4 120.0 40.5 -36.9 41.3 122.0 -24.5 124.0 42.2 -22.2 126.0 43.0 -20.0 43.8 128.0 -17.9 130.0 44.7 -15.8 45.5 132.0 -13.8 46.3 134.0 -11.9 136.0 47.1 -10.1 47.9 138.0...
  • Page 65 SERVICING REQUIRED LIQUID LINE TEMPERATURE LIQUID PRESSURE AT SERVICE VALVE (PSIG) REQUIRED SUBCOOLING TEMPERATURE (°F)

  • Page 66: Overfeeding

    SERVICING S-106 OVERFEEDING Overfeeding by the expansion valve results in high suction pressure, cold suction line, and possible liquid slugging of the compressor. If these symptoms are observed: 1. Check for an overcharged unit by referring to the cooling performance charts in the servicing section. 2.

  • Page 67: S-109A Two Speed Application

    SERVICING 4. Review the technical information manual or specification sheet for the model being serviced to obtain the design subcooling. 5. Compare the hi-pressure reading to the "Required Liquid Line Temperature" chart (page 43). Find the hi-pressure value on the left column. Follow that line right to the column under the design subcooling value.

  • Page 68: Checking Restricted Liquid Line

    SERVICING 2. Remove the orifice or tube strainer assembly and re- place. 3. Replace liquid line drier, evacuate and recharge. CHECKING EQUALIZATION TIME During the "OFF" cycle, the high side pressure bleeds to the low side through the fixed orifice restriction device. Check equalization time as follows: 1.

  • Page 69: Refrigerant Piping

    SERVICING NOTE: At least twelve (12) inches of the suction line immediately out of the compressor stub must be discarded due to burned residue and contaminates. 1. Remove compressor discharge line strainer. 2. Remove the liquid line drier and expansion valve. 3 Purge all remaining components with dry nitrogen or carbon dioxide until clean.
  • Page 70 SERVICING 4. Two-Stage Condensing Unit: The maximum length of tubing must not exceed 80 feet where indoor coil is located above the outdoor unit. NOTE: When the outdoor unit is located above the indoor coil, the maximum vertical rise must not exceed 25 feet.

  • Page 71: Static Pressure Drop Across Coils

    SERVICING Mounting the condensing unit above the evaporator coil will require oil traps at equal intervals along the suction line. Install 1 oil trap for a height difference of 15-25 feet between indoor and outdoor units. Install 2 oil traps for a difference of 26-50 feet, 3 for 51-100 feet, and 4 for 101-150 feet.

  • Page 72: Coil Static Pressure Drop

    SERVICING 3. Add the two readings together. TOTAL EXTERNAL STATIC NOTE: Both readings may be taken simultaneously and read directly on the manometer if so desired. 4. Consult proper table for quantity of air. If external static pressure is being measured on a furnace to determine airflow, supply static must be taken between the "A"...

  • Page 73: Accessories Wiring Diagrams

    ACCESSORIES WIRING DIAGRAMS ALL FUEL SYSTEM AFE18-60A CONTROL BOARD POWER SUPPLY INPUT FURNACE DEMAND OUTPUT BLOWER FAN DEMAND OUTPUT POWER SUPPLY INPUT (COMMON) SECOND STAGE FURNACE DEMAND OUTPUT COMPRESSOR OUTPUT SECOND STAGE COMPRESSOR OUTPUT REVERSING VALVE OUTPUT POWER SUPPLY OUT TO THERMOSTAT CALL FOR REVERSING VALVE...
  • Page 74 ACCESSORIES WIRING DIAGRAMS 10kw and Below, One Stage Electric Heat THERMOSTAT EMERGENCY HEAT RELAY OT/EHR18-60 15kw and Above, Two Stage Electric Heat THERMOSTAT EMERGENCY HEAT RELAY OT/EHR18-60 Note: When using a Thermostat with only one stage for electric heat (W2), tie white and brown wires from air handler together.
  • Page 75 ACCESSORIES WIRING DIAGRAMS 15kw and Above with Two OT/EHR18-60's, Two Stage Electric Heat and Two Stage Thermostat OT/EHR18-60 #1 THERMOSTAT EMERGENCY HEAT RELAY OT/EHR18-60 #2 THERMOSTAT EMERGENCY HEAT RELAY Typical Wiring Schematics for OT/EHR18-60 (Outdoor Thermostat & Emergency Heat Relay). This wiring diagram is for reference only.
  • Page 76 ACCESSORIES WIRING DIAGRAMS HTR1 ONE (1) ELEMENT ROWS NOTE: WHEN INSTALLING HEATER KIT, ENSURE SPEED TAP DOES NOT EXCEED MINIMUM BLOWER SPEED (MBS) SPECIFIED FOR THE AIRHANDLER/HEAT ER KIT COMBINATION ON THIS UNIT'S S&R PLATE. AFTER INSTALLING OPTIONAL HEAT KIT, MARK AN "X" IN THE MARK ACCORDING TO NUMBER OF HEATER ELEMENT ROWS INSTALLED.
  • Page 77 ACCESSORIES WIRING DIAGRAMS HTR2 HTR3 HTR4 EQUIPMENT GROUND USE COPPER OR ALUMINUM WIRE Typical Wiring Schematic MBR Blower with Electric Heat. This wiring diagram is for reference only. Not all wiring is as shown above. Refer to the appropriate wiring diagram for the unit being serviced. HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT.
  • Page 78 ACCESSORIES WIRING DIAGRAMS HTR1 ONE (1) ELEMENT ROWS AFTER INSTALLING OPTIONAL HEAT KIT, MARK AN "X" IN THE MARK ACCORDING TO NUMBER OF HEATER ELEMENT ROWS INSTALLED * SEE NOTE 7 C ONDEN SER TH ERM O STAT L OW VOLTAGE Y/Y2 YCO N FIEL D CON NEC TION...
  • Page 79 ACCESSORIES WIRING DIAGRAMS HTR2 HTR1 HKR Heat Kit Typical Wiring Schematic MBE Blower with Electric Heat. Refer to the appropriate wiring diagram for the unit being serviced. HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
  • Page 80 ACCESSORIES WIRING DIAGRAMS HTR1 ONE (1) ELEMENT ROWS NOTE: WHEN INSTALLING HEATER KIT, ENSURE SPEED TAP DOES NOT EXCEED MINIMUM BLOWER SPEED (MBS) SPECIFIED FOR THE AIRHANDLER/HEAT ER KIT COMBINATION ON THIS UNIT'S S&R PLATE. AFTER INSTALLING OPTIONAL HEAT KIT, MARK AN "X" IN THE MARK ACCORDING TO NUMBER OF HEATER ELEMENT ROWS INSTALLED.

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