Johnson Controls Unitary Products 16 SEER -YHM SERIES Installation Manual

R-410a outdoor split-system heat pump

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INSTALLATION MANUAL

R-410A OUTDOOR SPLIT-SYSTEM
HEAT PUMP
MODELS: 16 SEER -
YHM, CH16, TH16 SERIES
2 - 5 TONS (1 PHASE)
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
SAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
UNIT INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
INDOOR EXPANSION DEVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
EVACUATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
SYSTEM CHARGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
ELECTRICAL CONNECTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11
Typical Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Alternative Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Installation of Vapor Line . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Underground Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Heat Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
TXV Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
TXV Bulb Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Proper Bulb Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Vertical Temperature Bulb Orientation . . . . . . . . . . . . . . . . . . . . . . . . .7
Minimum / Maximum Operating Limit Conditions . . . . . . . . . . . . . . . . .3
Allowable Vertical Linesets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
R-410A Saturation Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
TEST Input Functionality with Y . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
TEST Input Functionality without Y . . . . . . . . . . . . . . . . . . . . . . . . . .14
Status Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Operational Mode Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
SECTION I: GENERAL
The outdoor units are designed to be connected to a matching indoor
coil with sweat connect lines. Sweat connect units are factory charged
with refrigerant for a nominal sized matching indoor coil plus 15 feet of
field-supplied lines.
Matching indoor coils can be used with a thermostatic expansion valve
(TXV). Refer to the Tabular Data Sheet or to the Technical Guide for
the proper selection.
SECTION II: SAFETY
This is a safety alert symbol. When you see this symbol on
labels or in manuals, be alert to the potential for personal
injury.
Understand and pay particular attention to the signal words DANGER,
WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation, which, if not
avoided, will result in death or serious injury.
WARNING indicates a potentially hazardous situation, which, if not
avoided, could result in death or serious injury.
CAUTION indicates a potentially hazardous situation, which, if not
avoided may result in minor or moderate injury. It is also used to
alert against unsafe practices and hazards involving only property dam-
age.
Johnson Controls Unitary Products
LIST OF SECTIONS
SYSTEM START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
SYSTEM OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
FAULT CODE - INVERTER TROUBLESHOOTING . . . . . . . . . . . . 17
INSTRUCTING THE OWNER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
START UP SHEET . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
LIST OF FIGURES
Outdoor Unit Swing Away Control Box . . . . . . . . . . . . . . . . . . . . . . . . 9
Outdoor Unit Control Box (Single Phase) . . . . . . . . . . . . . . . . . . . . . 10
Heat Pump Flow Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Heat Pump Main Control Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Wiring Diagram - Single Phase (Demand Defrost) . . . . . . . . . . . . . . 28
LIST OF TABLES
Fault Code Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
High Pressure Switch (HPS) Fault . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Compressor Inverter Drive Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Outdoor Fan Motor Fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Compressor Control Protection Fault . . . . . . . . . . . . . . . . . . . . . . . . 23
Miscellaneous Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Improper installation may create a condition where the operation of
the product could cause personal injury or property damage.
Improper installation, adjustment, alteration, service or maintenance
can cause injury or property damage. Refer to this manual for assis-
tance or for additional information, consult a qualified contractor,
installer or service agency.
This product must be installed in strict compliance with the enclosed
installation instructions and any applicable local, state, and national
codes including, but not limited to building, electrical, and mechanical
codes.
R-410A systems operate at higher pressures than R-22 systems. Do
not use R-22 service equipment or components on R-410A equip-
ment. Service equipment
® ®
WARNING
!
CAUTION
!
CAUTION
!
Must Be Rated
for R-410A.

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Summary of Contents for Johnson Controls Unitary Products 16 SEER -YHM SERIES

  • Page 1: Table Of Contents

    CAUTION indicates a potentially hazardous situation, which, if not Must Be Rated ment. Service equipment for R-410A. avoided may result in minor or moderate injury. It is also used to alert against unsafe practices and hazards involving only property dam- age. Johnson Controls Unitary Products 5156631-UIM-G-0417...
  • Page 2: Unit Installation

    ° F. The kit part number can be found in the list of accessory kits on the UPGNET web site. Provide adequate structural support for the unit. Johnson Controls Unitary Products...
  • Page 3: Installation Of Vapor Line

    5156631-UIM-G-0417 FIGURE 1: Typical Installation Clearances FIGURE 2: Alternative Installation Clearances Johnson Controls Unitary Products...
  • Page 4: Txv Installation

    R-410A. If you are unsure, consult the equip- ment manufacturer. structural foundation or walls to prevent sound and vibration transmis- sion into the living space. Johnson Controls Unitary Products...
  • Page 5: Txv Bulb Installation

    Serious service problems can be avoided by taking adequate precau- Braze the liquid line to the evaporator liquid connection. Nitrogen tions to assure an internally clean and dry system. should be flowing through the evaporator coil. Johnson Controls Unitary Products...
  • Page 6: Indoor Expansion Device

    1/4” SAE coupling nut to the equalizer fitting, and apply an addi- tional 1/3 turn to seal. See Figure 7. CAUTION In all cases, mount the TXV temperature sensing bulb after vapor line is brazed and sufficiently cooled. Johnson Controls Unitary Products...
  • Page 7: Evacuation

    OF LINE SET SCREW DETAIL A A0269-002 To ensure that your unit performs at the published levels, it is important FIGURE 8: Proper Bulb Location that the indoor airflow is determined and refrigerant charge added accordingly. Johnson Controls Unitary Products...
  • Page 8: R-410A Saturation Properties

    After charging is complete, the P6 TEST MODE must be jumpered in the “N” position for normal operation of the system. With the jumper in the “N” position, the compressor operates at 4th stage and Y2 operates the indoor fan speed. Johnson Controls Unitary Products...
  • Page 9: Electrical Connections

    Local, National, Fire, Safety & Electrical Codes. This unit must be grounded with a separate ground wire in accordance with the above codes. The complete connection diagram and schematic wiring label is located on the inside surface of the unit service access panel. Johnson Controls Unitary Products...
  • Page 10: Typical Field Wiring (Air Handler / Electrical Heat) (Single-Phase) . 11 Heat Pump Flow Diagram

    Replace the control box cover removed in Step 2 of the FIELD the indoor airflow by using the LED display on the indoor CFM selection CONNECTIONS POWER WIRING procedures. board. All field wiring to be in accordance with national electrical codes (NEC) and/or local-city codes. Johnson Controls Unitary Products...
  • Page 11: Test Input Functionality With Y

    Defrost cycle is not initiated if “O” is present. Energize “W OUT,” and begin defrost cycle immediately upon expiration of timer. Test Pin Short removed Terminate defrost as normal. Test pin Short not removed Continue defrost cycle until TEST connection removed. Johnson Controls Unitary Products...
  • Page 12: Test Input Functionality Without Y

    LIQUID VALVE(Cooling) TXV/CHECK SENSOR VALVE(Heating) COOLING CYCLE FLOW FIELD CONNECTED LINE HEATING CYCLE FLOW A017-001 FIGURE 14: Heat Pump Flow Diagram TRI-COLOR LED1 7-SEGMENT DISPLAYS (RED, AMBER GREEN) A0504-001 FIGURE 15: Heat Pump Main Control Board Johnson Controls Unitary Products...
  • Page 13: Status Code Display

    2 seconds. 7-Segment 7-Segment Operational Mode Color Status codes are not displayed when a fault code is present. Display 1 Display 2 Heat Pump 1 flash Green Air Conditioner 2 flashes Green Johnson Controls Unitary Products...
  • Page 14: Fault Code Display

    Inverter pulse width modulation (PWM) logic error RED (solid) Inverter PWM initialization error RED (solid) Compressor inverter shunt resistor unbalanced RED (solid) Fan inverter IPM fault RED (solid) Fan inverter misalignment and locked rotor RED (solid) Fan inverter phase lost RED (solid) Johnson Controls Unitary Products...
  • Page 15: Fault Code - Inverter Troubleshooting

    (CFM) requirements. Bypass the pressure switch on the inverter wire harness, Troubleshoot the pressure switch. and Ohm out the high pressure switch. If fault remains. Contact JCI Technical Services. Johnson Controls Unitary Products...
  • Page 16: Compressor Inverter Drive Fault

    4.) drive.) Replace compressor. (Validate the fix. If the issue is persistent, Step 4. Compressor internal damage. reinstall the original compressor, and go to the last step.) Last Step. If fault remains. Contact JCI Technical Services. Johnson Controls Unitary Products...
  • Page 17 5.) Voltage Replace Compressor.(Validate the fix. If the issue is persistent, Step 5. Compressor internal damage. reinstall the original compressor, and go to the last step.) Last Step. If fault remains. Contact JCI Technical Services. Johnson Controls Unitary Products...
  • Page 18 4.) Replace compressor. Step 4. Compressor internal damage. (Validate the fix, If the issue is persistent, reinstall the original compressor and go to the last step.) Last Step. If fault remains. Contact JCI Technical Services. Johnson Controls Unitary Products...
  • Page 19 4.) Replace compressor. (Validate the fix. If the issue is persistent, Step 4. Compressor internal damage. reinstall the original compressor, and go to the last step.) Last Step. If fault remains. Contact JCI Technical Services. Johnson Controls Unitary Products...
  • Page 20: Outdoor Fan Motor Fault

    Replace outdoor fan motor. Step 5. Bad outdoor fan motor. (Validate the fix. If the issue is persistent, reinstall the original fan motor, and go to the last step.) Last Step. If fault remains. Contact JCI Technical Services. Johnson Controls Unitary Products...
  • Page 21: Compressor Control Protection Fault

    Change out the inverter drive. Step 5. Faulty inverter drive control. Validate the fix, If the issue is persistent, reinstall the original inverter drive, and go to the last step.) Last Step. If fault remains. Contact JCI Technical Services. Johnson Controls Unitary Products...
  • Page 22 Change out the inverter drive. Step 5. Inverter internal damage. (Validate the fix. If the issue is persistent, reinstall the original inverter drive, and go to the last step.) Last Step. If fault remains. Contact JCI Technical Services. Johnson Controls Unitary Products...
  • Page 23: Defrost Operation Curves (Variables - Defrost Active Variable)

    Troubleshoot the CCH with a multi-meter. Remove CCH terminals, and measure resistance across the Step 2. Open crankcase heater circuit. CCH terminals. If the CCH resistance value reads infin- ity or open load, replace the CCH. Johnson Controls Unitary Products...
  • Page 24: Uim-G

    5 seconds. As the ambient temperature changes, a slope of 1° F Defrost Delta T Changes for every 8° F ambient temperature change which is used to adjust the detection of frost accumulation. Johnson Controls Unitary Products...
  • Page 25 (unless required by the presents of a becomes the default termination temperature. The coil temperature heating call). used to terminate the defrost cycle may be filtered to improve the per- formance of the system. Johnson Controls Unitary Products...
  • Page 26: Wiring Diagram - Single Phase (Demand Defrost)

    35° F – 60° F. As ambient temperatures decrease, compressor well. will maintain Nominal RPM speed and the Outdoor Fan RPM will modu- late to maintain a constant discharge temperature to stabilize the sys- tem pressures. Johnson Controls Unitary Products...
  • Page 27: Instructing The Owner

    When the control de-energizes the “Y2 OUT” terminal, the indoor air- COOLING CHARGE TABLE IS ON THE INSIDE OF THE CONTROL flow level reduces as the blower runs at a lower speed delivering lower BOX COVER. airflow and higher leaving air temperature. Johnson Controls Unitary Products...
  • Page 28: Wiring Diagram

    BLU W/ YEL Y2 OUT W1 OUT W2 OUT HOT HEAT TEST DEFROST TEST PUMP MODE TEMP U(S) V(C) YEL/GRN W(R) COMPRESSOR YEL/GRN FAN MOTOR YEL/GRN 5163052-UWD-B-0916 FIGURE 17: Wiring Diagram - Single Phase (Demand Defrost) Johnson Controls Unitary Products...
  • Page 29: Start Up Sheet

    Venting system properly sized, within the limitations of the charts in the installation instructions. Intake Size # of 90 Degree Ells # 0f 45 Degree Ells Length Exhaust Size # of 90 Degree Ells # 0f 45 Degree Ells Length Page 1 of 2 (7/7-16) Johnson Controls Unitary Products...
  • Page 30 Air Side: System Total External Static Pressure Supply static before indoor coil (in w.c.") Supply static after indoor coil (in w.c.") Return Static (in w.c.") before filter Return Static (in w.c.") after filter (furnace side) Total External Static Pressure Maximum Rated ESP (in w.c.") COOL Cooling ADJUST...

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Ch16 seriesTh16 series

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