Johnson Controls P Series Installation And Maintenance Manual
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Johnson Controls P Series Installation And Maintenance Manual

18k - 24k - 220v inverter-driven air conditioning units
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Installation and
Maintenance
Manual
"P" SERIES
18K - 24K - 220V
INVERTER-DRIVEN AIR
CONDITIONING UNITS
Type
INDOOR UNIT
Type
OUTDOOR UNIT
IMPORTANT:
READ AND UNDERSTAND
THIS MANUAL BEFORE
USING THIS INVERTER-
DRIVEN AIR CONDITIONING
UNIT. KEEP THIS MANUAL
FOR FUTURE REFERENCE.
Model
DHP18NWB21S
DCP18NWB21S
DHP24NWB21S
DCP24NWB21S
Model
DHP18CSB21S
DCP18CSB21S
DHP24CSB21S
DCP24CSB21S

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Summary of Contents for Johnson Controls P Series

  • Page 1 Installation and Maintenance Manual "P" SERIES 18K - 24K - 220V INVERTER-DRIVEN AIR CONDITIONING UNITS Type Model DHP18NWB21S DCP18NWB21S INDOOR UNIT DHP24NWB21S DCP24NWB21S Type Model DHP18CSB21S OUTDOOR UNIT DCP18CSB21S DHP24CSB21S DCP24CSB21S IMPORTANT: READ AND UNDERSTAND THIS MANUAL BEFORE USING THIS INVERTER- DRIVEN AIR CONDITIONING UNIT.
  • Page 2 P5415467...
  • Page 3 Important Notice ● Johnson Controls, Inc. pursues a policy of continuing improvement in design and performance in its products. As such, Johnson Controls, Inc. reserves the right to make changes at any time without prior notice. ● Johnson Controls, Inc. cannot anticipate every possible circumstance that might involve a potential hazard.

  • Page 4: Table Of Contents

    Table of Contents ...........i 2. Installation ........................ . 2.1 Installation Dimension Diagram ..................1 ............... 2. Installation Procedures.....................3 2.4 Installation - Checking Parts ...................4 2.5 Selection of Installation Location ..................4 2.6 Electric Connection Requirement ..................4 2.7 Installation of Indoor Unit ....................4 2.8 Installation of Outdoor Unit ....................7 2.9 Vacuum Pump/Leak Detection ..................8 2.10 Post Installation Testing ....................8...
  • Page 5 Never bypass or jump-out any safety device or switch. ● Johnson Controls, Inc. will not assume any liability for injuries or damage caused by not following steps outlined or described in this manual. Unauthorized modifications to Johnson Controls products are prohibited as they…...
  • Page 6 Take the following precautions to reduce the risk of property damage. ● Be careful that moisture, dust, or variant refrigerant compounds not enter the refrigerant cycle during installation work. Foreign matter could damage internal components or cause blockages. ● If air filters are required on this unit, do not operate the unit without the air filter set in place. If the air filter is not installed, dust may accumulate and breakdown may result.
  • Page 7 Controls uses only refrigerants that have been approved for use in the unit’s intended home country or market. Johnson Controls distributors similarly are only authorized to provide refrigerants that have been approved for use in the countries or markets they serve. The refrigerant used in this unit is identified on the unit’s faceplate and/or in the associated manuals.
  • Page 8 under pressure and never open pressurized system parts. ● Before installation is complete, make sure that the refrigerant leak test has been performed. If refrigerant gases escape into the air, turn OFF the main switch, extinguish any open flames and contact your service contractor.
  • Page 9 ● Use an exclusive power supply for the air conditioner at the unit’s rated voltage. ● Be sure to install circuit breakers (ground fault interrupter, isolating switch, molded case circuit breaker and so on), with the specified capacity. Ensure that the wiring terminals are tightened securely to recommended torque specifications.

  • Page 10: Installation Dimension Diagram

    2. Installation 2.1 Installation Dimension Diagram Space to the wall Space to the wall At least 6 At least 6 Condensate pipe unit:inch Installation and Maintenance...
  • Page 11 2.2 Main Tools for Installation and Maintenance 1. Level meter, measuring tape 2. Screw driver 3. Impact drill, drill head, electric drill 4. Electroprobe 5. Universal meter 6. Torque wrench, open-end wrench, inner hex wrench 7. Electronic leakage detector 8. Vacuum pump 9.

  • Page 12: Installation Procedures

    2.3 Installation Procedures Start installation Preparation before installation Read the requirements Select installation Prepare tools for electric connection location Select indoor unit Select outdoor unit installation location installation location Install wall-mounting Mount support of outdoor unit (select it according to the actual situation) frame, drill wall holes Connect pipes of indoor Mount outdoor unit...

  • Page 13: Installation - Checking Parts

    2.4 Installation - Checking Parts 2.6 Electric Connection Requirement Name Name 1. Safety Precaution Indoor unit Sealant (1) All electric safety regulations must be followed Outdoor unit Wrapping tape when installing the unit. Support of outdoor (2) Use proper power supply circuit and air switch in Connection pipe unit accordance with local safety regulations.
  • Page 14 in the holes. 5. Connect the Pipe of Indoor Unit (3) Secure the wall-mounting frame on the wall with tapping (1) Aim the pipe joint at the corresponding bellmouth. (As screws (ST4.2X25TA) and then check if the frame is firmly shown in Fig.5) installed by pulling the frame.
  • Page 15 7. Connect Wire of Indoor Unit 8. Bind up Pipe (1) Open the panel, remove the screw on the wiring cover (1) Bind up the connection pipe, power cord and and then take down the cover. (As shown in Fig.11) condensate hose with the band.

  • Page 16: Installation Of Outdoor Unit

    2.9 Installation of Outdoor Unit Refer to the following table for wrench tightening: 1. Fix the Support of Outdoor Unit(Install above local Hex nut diameter(inch) Tightening torque(ft·Ibf) snow line.) Φ1/4 11.10~14.75 Φ3/8 22.12~29.50 (1) Select installation location according to the house structure. Φ1/2 33.19~40.56 (2) Fix the support of outdoor unit on the selected location with...

  • Page 17: Vacuum Pump/Leak Detection

    2.10 Post Installation Testing (3) The water outlet can't be placed in water in order to drain smoothly.(As show in Fig.27) 1. Check after Installation Check according to the following requirements after finishing installation. The drain hose can't be fluctuant Items to be checked Possible malfunction Has the unit been...

  • Page 18: Maintenance

    3. Maintenance 3.1 Precautions before Maintenance There are high-capacity electrolytic capacitors on the outdoor mainboard. Thus, even if the power is cut off, there is high voltage inside the capacitors and it needs more than 20 min. to reduce the voltage to safety value. Touching the electrolytic capacitor within 20 min. after cutting the power will cause electric shock.

  • Page 19: Error Code List

    3.2 Error Code List cooling, dehumidifying, except the indoor fan motor is running, others will stop to run; heating; all stop running 1.Power supply is abnormal Malfunction Off 3s of zero-cross The complete unit stops 2.Detection circuit of indoor and blink direction control mainboard is 17 times...
  • Page 20 Complete unit Off 3s current and blink detection 13 times malfunction Off 3s Defrosting will occur in and blink heating mode.Compressor once will operate while indoor It’s the normal state (during fan will stop. blinking, ON 10s and Off 05s) Installation and Maintenance...
  • Page 21 Installation and Maintenance...

  • Page 22: Troubleshooting For Main Malfunction

    3.3 Troubleshooting for Main Malfunction ●Indoor unit: 1. Malfunction of Temperature Sensor F1, F2 Main detection points: ● Is the wiring terminal between the temperature sensor and the controller loose or poorly contacted? ● Is there short circuit due to trip-over of the parts? ●...
  • Page 23 2. Malfunction of Blocked Protection of IDU Fan Motor H6 Main detection points: ● Is the control terminal of PG motor connected tightly? ● Is the feedback interface of PG motor connected tightly? ● The fan motor can't operate? ● The motor is broken? ●...
  • Page 24 3. Malfunction of Protection of Jumper Cap C5 Main detection points: ● Is there jumper cap on the mainboard? ● Is the jumper cap inserted correctly and tightly? ● The jumper is broken? ● The motor is broken? ● Detection circuit of the mainboard is defined abnormal? Malfunction diagnosis process: Start Appearance of the...
  • Page 25 4. Communication malfunction E6 IDU = Indoor Unit Start ODU = Outdoor Unit Cut off power supply. Check if connection line of IDU and ODU and the wire inside electric box are correctly connected. Connect the line Correct connection? according to Malfunction eliminated? wiring diagram.
  • Page 26 ●Outdoor unit: Key detection point "Test point NO." Test point Related elements Test value under normal conditions Test 1 Between A and C Neutral wire ,live wire 160V-265V Test 2 Between B and C Neutral wire ,live wire 160V-265V Test 3 Between D and E Electrolytic capacitor of DC bas bar DC 180V-380V...
  • Page 27 1.Capacity charging malfunction (outdoor unit malfunction) (AP1 below is control board of outdoor unit) Main detection point: ● Detect if the voltage of L and N terminals of wiring board is between 210AC-240AC by alternating voltage meter. ● Is reactor (L) well connected? Is connection wire loose or pulled out? Is reactor (L) damaged? Malfunction diagnosis process: Turn on the unit and wait 1 minute...
  • Page 28 2.IPM protection, desynchronizing malfunction, phase current of compressor is overcurrent (AP1 below is control board of outdoor unit) Main detection point: ● If control board AP1 and compressor COMP is well connected? If they are loosened? If the connection sequence is correct? ●...
  • Page 29 Energize and switch on Use AC voltmeter If the voltage Check the supply to measure the IPM protection between terminal L voltage and voltage between occurs after the and N on wiring machine has run for terminal L and N restore it to board XT is within a period of time?
  • Page 30 3.Diagnosis for anti-high temperature, overload protection (AP1 below is control board of outdoor unit) Main detection point: ● If the outdoor ambient temperature is in normal range. ● If the indoor and outdoor fan is running normal. ● If the radiating environment of indoor and outdoor unit is well. Malfunction diagnosis process: Anti-high temperature, overload protection...
  • Page 31 4.Diagnosis for failure start up malfunction (AP1 below is control board of outdoor unit) Main detection point: ● If the compressor wiring is correct? ● If the stop time of compressor is enough? ● If the compressor is damaged? ● If the refrigerant charging is too much? Malfunction diagnosis process: Energize the unit and start it...
  • Page 32 5. Diagnosis for compressor synchronism (AP1 below is control board of outdoor unit) Main detection point: ● If the system pressure is over-high? ● If the work voltage is over-low? Malfunction diagnosis process: Synchronism Synchronism after energize the unit occurred during and start it operation Check if the fan...
  • Page 33 6.Diagnosis for overload and discharge malfunction (AP1 below is control board of outdoor unit) Main detection point: ● If the electronic expansion valve is connected well? Is the expansion valve damaged? ● If the refrigerant is leaking? ● If the overload protector is damaged? Malfunction diagnosis process: After the unit de-energized...
  • Page 34 7.Communication malfunction (AP1 below is control board of outdoor unit) Main detection point: ● Check if the connection wire and the built-in wiring of indoor and outdoor unit is connected well and not damaged. ● If the communication circuit of indoor mainboard is damaged? If the communication circuit of outdoor mainboard (AP1) is dam- aged.
  • Page 35 8.Diagnosis process for outdoor communication circuit Start Test voltage value with Test 10 position in diagram with voltage meter Number jumping Test voltage value with Test 13 position in diagram with voltage meter Number jumping Outdoor unit malfunction Test voltage value with Test 11 position in diagram with...

  • Page 36: Troubleshooting For Normal Malfunction

    3.4 Troubleshooting for Normal Malfunction 1. Air conditioning unit doesn't start Possible Causes Discriminating Method (Air Conditioner Status) Troubleshooting Confirm whether it's due to power failure. If yes, No power supply, or poor After energization, operation indicator isn’t wait for power recovery. If not, check power connection for power plug bright and the buzzer can't give out sound.
  • Page 37 4. ODU fan motor doesn't operate Possible causes Discriminating method (Air Conditioner Status) Troubleshooting Connect wires according to wiring diagram to Wrong wire connection, or poor Check the wiring status according to circuit make sure all wiring terminals are connected connection diagram firmly...

  • Page 38: Appendix

    Appendix: Appendix 1: Reference Sheet of Celsius and Fahrenheit Conversion formula for Fahrenheit degree and Celsius degree: Tf=Tcx1.8+32 Set temperature Fahrenheit Fahrenheit Fahrenheit display Fahrenheit display Fahrenheit display Fahrenheit Celsius （℃） Celsius （℃） Celsius （℃） temperature temperature temperature （℉） （℉） （℉）...

  • Page 39: Appendix 3: Pipe Expanding Method

    Appendix 3: Pipe Expanding Method Pipe Note: Pipe cutter Improper pipe expanding is the main cause of refrigerant leakage.Please expand the pipe according to the following steps: Leaning Uneven Burr A:Cut the pip ● Confirm the pipe length according to the distance of indoor unit and outdoor unit. ●...

  • Page 40: Appendix 4: List Of Resistance For Temperature Sensor

    Appendix 4: List of Resistance for Temperature Sensor 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 3.711 210.2 1.039 121.6 71.6...
  • Page 41 Resistance Table of Tube Temperature Sensors for Indoor and Outdoor (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 71.6 22.85 141.8 4.773 1.346 153.3 73.4 21.85 143.6...
  • Page 42 Resistance Table of Discharge Temperature Sensor for Outdoor(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 89.07 123.8 16.99 4.469 -14.8 703.8 55.4 84.95 125.6 16.36 195.8 4.334...
  • Page 44 Product improvement, specifications and appearance in this manual are subject to change without prior notice. © Johnson Controls, Inc. USA LIT 12012174...

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