Sea Breeze PTAC Service Manual
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Sea Breeze PTAC Service Manual

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AIR CONDITIONER / HEAT PUMP
208/230 VAC Units
953-0132
SERVICE MANUAL
For the following models:
PTAC49CH3ZC
PTAC49HP3ZC
PTAC412CH3ZC
PTAC412HP3ZC
PTAC415CH3ZC
PTAC415HP3ZC
REFRIGERANT
PTAC
265/277 VAC Unit
PTAC49CH3VC
PTAC49HP3VC
PTAC412CH3VC
PTAC412HP3VC
PTAC415CH3VC
PTAC415HP3VC
R410A

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  • Page 1 PTAC AIR CONDITIONER / HEAT PUMP SERVICE MANUAL For the following models: 208/230 VAC Units 265/277 VAC Unit PTAC49CH3ZC PTAC49CH3VC PTAC49HP3ZC PTAC49HP3VC PTAC412CH3ZC PTAC412CH3VC PTAC412HP3ZC PTAC412HP3VC PTAC415CH3ZC PTAC415CH3VC PTAC415HP3ZC PTAC415HP3VC REFRIGERANT R410A 953-0132...

  • Page 2: Table Of Contents

    Table of Contents SAFETY PRECAUTIONS ....................... 3 TECHNICAL SPECIFICATIONS .................... 3 Specification of 208/230 UNITS ..................3 Specification of 265/277 UNITS ..................4 OUTLINE AND INSTALLATION DIMENSION ............... 5 REFRIGERATION SYSTEM DIAGRAM ................. 6 Air Conditioner with Electric Heat units ................6 Heat Pump with Electric Heat units ...................
  • Page 3 953-0132...

  • Page 4: Safety Precautions

    SAFETY PRECAUTIONS IMPORTANT snow, leaves or rubbish. Please Read Before Starting. • The unit should be installed according to the This air conditioning system meets strict safety and instructions in order to minimize the risk of damage operating standards. As the installer or service person, it is from earthquakes, typhoons or strong winds.

  • Page 5: Technical Specifications

    TECHNICAL SPECIFICATIONS Specification of 208/230 UNITS Model Number PTAC49CH3ZC PTAC49HP3ZC PTAC412CH3ZC PTAC412HP3ZC PTAC415CH3ZC PTAC415HP3ZC 10090941(with 2kW) 10090945(with 2kW) 10090937(with 2kW) 10090942(with 3kW) 10090946(with 3kW) AHRI Reference Number 10090940 10090944 10090948 10090938(with 3kW) 10090943(with 5kW) 10090947(with 5kW) Refrigerant type/charge R410A / 23.6 oz R410A / 33.9 oz R410A / 35.3 oz R410A / 35.3 oz...

  • Page 6: Specification Of 265/277 Units

    Specification of 265/277 UNITS Model Number PTAC49CH3VC PTAC49HP3VC PTAC412CH3VC PTAC412HP3VC PTAC415CH3VC PTAC415HP3VC 10090953(with 2kW) 10090957(with 2kW) 10090949(with 2kW) 10090954(with 3kW) 10090958(with 3kW) AHRI Reference Number 10090952 10090956 10090960 10090950(with 3kW) 10090955(with 5kW) 10090959(with 5kW) Refrigerant type/charge R410A / 23.6 oz R410A / 33.9 oz R410A / 35.3 oz R410A / 35.3 oz...

  • Page 7: Outline And Installation Dimension

    OUTLINE AND INSTALLATION DIMENSION...

  • Page 8: Refrigeration System Diagram

    REFRIGERATION SYSTEM DIAGRAM Air Conditioner with Electric Heat units Model: PTAC49CH3ZC, PTAC49CH3VC, PTAC412CH3ZC, PTAC412CH3VC, PTAC415CH3ZC, PTAC415CH3VC Heat Pump with Electric Heat units Model: PTAC49HP3ZC, PTAC49HP3VC, PTAC412HP3ZC, PTAC412HP3VC, PTAC415HP3ZC, PTAC415HP3VC...

  • Page 9: Wiring Diagram

    WIRING DIAGRAM Air Conditioner with Electric Heat units Model: PTAC49CH3ZC, PTAC49CH3VC, PTAC412CH3ZC, PTAC412CH3VC, PTAC415CH3ZC, PTAC415CH3VC Heat Pump with Electric Heat units Model: PTAC49HP3ZC, PTAC49HP3VC, PTAC412HP3ZC, PTAC412HP3VC, PTAC415HP3ZC, PTAC415HP3VC...

  • Page 10: Pc Board

    PC BOARD Main Board 1 Top View Bottom View...

  • Page 11: Main Board 2

    Main Board 2 Top View Bottom View...

  • Page 12: Installation Instructions

    Units are shipped without a sleeve. In applications where unit is a replacement, it is recommended that a Sea Breeze sleeve be used. These units can retrofit General Electric, Amana, Trane, and Friedrich sleeves / grilles (be sure outdoor grille is installed on the sleeve).
  • Page 13 RETROFIT SLEEVE PREPARATION IMPORTANT: Inspect wall sleeve thoroughly prior to installation. Manufacturer does not assume responsibility for costs or damages due to defects in sleeve or for improper installation. WARNING ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death.
  • Page 14 INSTALL UNIT INTO WALL SLEEVE 1. Carefully remove shipping tape from the front panel and vet door. See Fig.5. 2. Remove shipping screw from the vent door, if present. See Fig.6. 3. Remove front panel. See Fig.7. 4. Lift unit level and slide unit into wall sleeve until foam seal rests firmly against front of wall sleeve. 5.
  • Page 15 OPTIONAL REMOTE CONTROL AND RECEIVER MODULE This PTAC unit can be operated with a remote control. The item number is 425-0057. It includes a remote control and receiver. NOTE: Be sure there is no obstruction between receiver and remote control. Do not drop or throw the remote control.

  • Page 16: Function And Control

    FUNCTION AND CONTROL IMPORTANT: When unit is first started, high humidity conditions can cause condensation to form on discharge grille. Keep doors and windows closed. Room humidity will decrease and moisture will evaporate. Panel Operation It displays the function immediately while press the button, and the corresponding function will be started up in 2 seconds.

  • Page 17: Description Of Each Operation

    4. Sleep function: This function can only be set by remote control. It will bring a more comfortable sleeping environment. This function is not available under FAN and AUTO modes. 5. DRY function: Set unit to dehumidifying. 6. Buzzer optional: When controller is energized, or valid remote control signal / button signal is received, the buzzer will beep each time.
  • Page 18 heating function 10 seconds later and run until the room temperature is satisfied. When Tamb – Tamb. compensation ≤ Tpreset -2 ℉(1 °C), the unit is running in heating mode. Meanwhile, the compressor will be started up. When Tamb – Tamb. compensation≥ Tpreset +2 ℉(1 °C), the compressor and the fan will be turned off. When Tpreset -2 ℉(1 °C) <...
  • Page 19 WARMER and COOLER: To adjust the setting temperature by pressing these two buttons; or set timer within 0 - 24 hours while in TIMER setting status. In 10 hour timer, the time is adjusted every 0.5 hour for each pressing. Above 10 hour timer, the time is adjusted every 1 hour for each pressing.
  • Page 20 needs 3 seconds to detect the signal from the wall thermostat after the unit is turned on by EM. (24 VAC signal range is 18~28 VAC, 0 VAC signal range is 0~5 VAC). 2) Configuration – Easy for hotel personnel to repair (7 dip switches, the configuration is valid only after the unit is power off).
  • Page 21 button. Mode one: Fahrenheit /Centigrade display mode Fahrenheit and Centigrade display mode can be switched by pressing WARMER or COOLER button. F indicates Fahrenheit display mode; C indicates Centigrade display mode Mode two: Temperature compensation value adjustment mode for dry. Press WARMER/COOLER button can increase or decrease temperature compensation value for 1 ℉...
  • Page 22 setting temperature is displayed. T value is 0, the fan speed is medium and the setting temperature is 71 ℉. 5. Protection Functions 1) Defrost (heat pump only). 2) Entry condition: When the compressor is controlled by wall thermostat in heating mode, and the outdoor tube temperature ≤...

  • Page 23: Remote Control Operation

    Remote Control Operation Note:  When power is connected (stand by condition), operate the air conditioner with the remote control.  Indoor controller will beep each time it receives a command from the remote control, and the sending signal icon displayed on the remote control.
  • Page 24 Note:  The rage of time setting is 0.5 ~ 24 hours.  The interval between two motions cannot exceed 5 seconds, otherwise the remote control will exit setting status. REPLACING BATTERIES Slightly press down on the top center of the battery cover and slide in the direction of the arrowhead .

  • Page 25: Troubleshooting

    TROUBLESHOOTING Switch is at the OFF position; or socket and plug is loosened; or the power cord has malfunction; or power No power supply failed. Fuse burn-out Replace the fuse Inspect the power voltage. If it is lower 10% of the rated Power voltage is too low voltage, please look for the reason, improve the power supply condition and add the regulated power supply.
  • Page 26 Check leakage, evacuate with vacuum-pump after Refrigerant is insufficient or leaking repairing leakage, and then charge refrigerant according the spec. Observe the condensation condition of evaporator or the reading of high pressure meter to judge if the system is Refrigeration system is blocked blocked;...
  • Page 27 Refrigerant is insufficient or superabundance Adjust the quantity of the refrigerant Capillary is blocked, and the suction temperature Replace capillary is rising. Protection is activated due to overheating The compressor can run smoothly or is blocked. Replace the compressor The air discharge valve is damaged. Check the contact point of the compressor with a multimeter to find out if it is conducted.

  • Page 28: Error Code

    Error Code ~26~...

  • Page 29: Maintenance Method For Normal Malfunction

    Maintenance Method for Normal Malfunction Air Conditioner Cannot Start Up. Poor Cooling Poor Heating for Electric Heater ~27~...
  • Page 30 Fan Motor Cannot Operate Compressor Cannot Operate ~28~...
  • Page 31 Air Conditioner is Leaking Abnormal Sound and Vibration ~29~...

  • Page 32: Appendix

    Appendix Appendix 1: Resistance Table of Ambient Temperature Sensor for Indoor and Outdoor Units (15K) Temp. (℉) Resistance (kΩ) Temp. (℉) Resistance (kΩ) Temp. (℉) Resistance (kΩ) Temp. (℉) Resistance (kΩ) -2.2 138.1 18.75 138.2 3.848 208.4 1.071 -0.4 128.6 69.8 17.93 3.711...
  • Page 33 Appendix 2: Resistance Table of Outdoor and Indoor Tube Temperature Sensors (20K) Temp. (℉) Resistance (kΩ) Temp. (℉) Resistance (kΩ) Temp. (℉) Resistance (kΩ) Temp. (℉) Resistance (kΩ) -2.2 181.4 25.01 138.2 5.13 208.4 1.427 -0.4 171.4 69.8 23.9 4.948 210.2 1.386 162.1...
  • Page 34 Appendix 3: Resistance Table of Outdoor and Indoor Tube Temperature Sensors (50K) Temp. (℉) Resistance (kΩ) Temp. (℉) Resistance (kΩ) Temp. (℉) Resistance (kΩ) Temp. (℉) Resistance (kΩ) -20.2 853.5 120.2 18.34 190.4 4.754 -18.4 799.8 51.8 93.42 17.65 192.2 4.609 -16.6 53.6...

  • Page 35: Disassembly Procedure

    DISASSEMBLY PROCEDURE Warning Be sure to wait 10 minutes or more after turning off all power supplies before disassembling work. Note: The procedure below is for heat pump unit with electric heating. There is some difference between it and cooling only unit with electric heating. The difference is pointed out in the diagram; please refer to the related diagram direction.
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