Panasonic CZ-280PAH1 Installation Instructions Manual

Air handling unit control kit

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INSTALLATION INSTRUCTIONS
Air Handling Unit control kit
Model No.
CZ-280PAH1
Caution
Only Indoor Installation
Carefully reading this "INSTALLATION INSTRUCTIONS", correctly
and safely conducting installation or electrical work.
Especially, before conducting installation or electrical work, be sure to
read " Safety Precautions"(page3).

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Summary of Contents for Panasonic CZ-280PAH1

  • Page 1 INSTALLATION INSTRUCTIONS Air Handling Unit control kit Model No. CZ-280PAH1 Caution Only Indoor Installation Carefully reading this ”INSTALLATION INSTRUCTIONS”, correctly and safely conducting installation or electrical work. Especially, before conducting installation or electrical work, be sure to read ” Safety Precautions”(page3).
  • Page 2: Table Of Contents

    Contents Safety Precautions System Lineup Supplied Parts Outside View Control Box Configuration System Overview Limitation of AHU 7.1. Temperature range 7.2. Inside volume of heat exchanger 7.3. Air volume of AHU 7.4. Front area of heat exchanger 7.5. Restriction of the number of passes of the heat exchanger hairpin Installation 8.1.
  • Page 3: Safety Precautions

    1. Safety Precautions Before conducting installation or electrical work, be sure to carefully read these” Safety Precautions”. Follow instructions exactly in all installation or electrical work. The following symbols used in this manual, alert you to potentially dangerous conditions to users, service personnel or the appliance: This warning mark indicates that This cautionary mark indicates...
  • Page 4: System Lineup

    2. System Lineup Capacity Outdoor combination Connectable AHU-kit combination 10kW U-100PE1E8 U-100PE1E5 CZ-280PAH1 CZ-280PAH1 12.5kW U-125PE1E8 U-125PE1E5 CZ-280PAH1 CZ-280PAH1 14kW U-140PE1E8 U-140PE1E5 CZ-280PAH1 CZ-280PAH1 20kW U-200PE1E8 CZ-280PAH1 - - 25kW U-250PE1E8 - CZ-280PAH1 - *Single connection type only. *Mix connection with standard indoor units is not allowed.
  • Page 5: Control Box Configuration

    5. Control Box Configuration ① PCB(main) ② Transformer ③ Magnetic relay ④ Terminal(power supply, control line) ⑤ Terminal(Blower signal line) ⑥ Space Optional controller installation (for Mini Seri-Para I/O unit <CZ-CAPBC2>) 6. System Overview Single connection Strainer(Liquid pipe & Gas pipe)Minφ25.4、 #100(Field supplied) A:AHU kit controller box (with control PCB) G:Thermistor for Liquid pipe(E1)
  • Page 6: Limitation Of Ahu

    Limitations of AHU 7.1. Temperature Range The limitation of temperature range is below. Cooling Heating Minimum -10℃(DB) -20℃(WB) Outdoor temperature Maximum 43℃(DB) 15℃(WB) Minimum 18℃(DB) 16℃(DB) Inter air temperature (to the heat exchanger) Maximum 32℃(DB)/23℃(WB) 30℃(DB) 7.2. Inside Volume of Heat Exchanger Capacity(Cooling) 12.5 Heat exchanger...
  • Page 7: Installation

    8. Installation 8.1. AHU kit Installation Mount AHU kit according to the following instructions. * Attach AHU kit to Air Handling Unit body directly to avoid exposing wires of thermistors to outside. 1. Install the bracket to the wall with 2.
  • Page 8: Piping Installation

    8.2. Piping Installation 8.2.1. Dimension of connecting pipe to heat exchanger of AHU Capacity Model name Liquid pipe Gas pipe 10-14kW CZ-280PAH1 Φ9.52mm Φ15.88mm 20kW CZ-280PAH1 Φ9.52mm Φ25.4mm 25kW CZ-280PAH1 Φ12.7mm Φ25.4mm 8.2.2. System piping length(Charging with refrigerant) At the time of shipment from the factory, Outdoor unit is charged with enough refrigerant for an equivalent pipe length of 30m.
  • Page 9: Thermistor Installation

    8.3. Thermistor Installation Identify the thermistors by the tag which is wound to each thermistor. * Don’t put wires out of equipment. * Don’t cut wires and don’t detach connecter of wires. 8.3.1. Caution for Thermistor Installation Put the thermistor wire down to avoid Attach the head of thermistor exactly onto the pipe because the head is most water to the thermistor.
  • Page 10: Capacity Disregard Of Circuit Board In Outdoor Unit

    8.3.3. Installation of “E2”Thermistor for Heat exchanger Pipe middle 1. Attach the heat exchanger pipe middle 2. Cover the thermistor and pipe with thermistor in the middle of each pass-line aluminum tape(Field supply). (pipe) in the heat exchanger. 3. The thermistor is fixed in bands. Then, 4.
  • Page 11: Remote Controller Installation( Option Parts )

    8.4.1. Attachment of NOTES Label. ( Supplied parts ) Please be sure to place the attached NOTES label on the following designated area in Outdoor Unit when cutting jumper wire on circuit board in Outdoor Unit. Model name U-100PE1E8 U-100PE1E5 U-200PE1E8 U-125PE1E8 U-125PE1E5...
  • Page 12 ② Make holes on the front panel Make holes (x3) correctly at the following position. (2 screw holes, a wire hole) Caution If the hole position is wrong or different, the electrical equipment parts in the box and 2×Φ3.1mm the wires may be damaged and Hole for screws of remote cause the trouble.
  • Page 13: Electrical Wiring

    9. Electrical Wiring 9.1. General Precautions on Wiring (1) Before wiring, confirm the rated voltage of the unit as shown on its nameplate, then carry out the wiring closely following the wiring diagram. (2) This equipment is not provided with a power supply cord. Circuit breaker must be incorporated in the fixed wiring in accordance with national wiring regulations.
  • Page 14: Wiring System Diagrams

    9.3. Wiring System Diagrams Fig.9-1 (1) Refer to Section 9.2. “Recommended Wire Length and Wire Diameter for Power Supply System” for the explanation of “A”, “B”, “C” and “D” in the above diagram. (Fig.9-1) (2) The basic connection diagram of the indoor unit shows the terminal boards, so the terminal boards in your equipment may differ from the diagram.(Fig.9-2)
  • Page 15 (1) When linking the outdoor units in a network, disconnect the terminal extended from the short plug from all outdoor units except any one of the outdoor units. (When shipping: in shorted condition.) For a system without link(no wiring connection between outdoor units), do not remove the short plug.
  • Page 16: How To Connect Wiring To The Terminal

    9.4. How to Connect Wiring to the Terminal ■ For stranded wiring (1) Cut the wire end with cutting pliers, then strip the insulation to expose the stranded wiring by about 10mm and tightly twist the wire ends. (Fig.9-7) (2) Using a Phillips head screwdriver, remove the terminal screw(s) on the terminal plate. (3) Using a ring connector fastener or pliers, securely clamp each stripped wire end with a ring pressure terminal.
  • Page 17: Connecting Distant Signal Line

    9.5. Connecting Distant Signal Line(Blower signal and Blower protect) Inside of AHU Blower signal and Blower protect are connected from this hole and fixed by clamper. Blower signal and Blower protect Clamper(Supplied parts) Drooping wire Make wire down to Blower signal and Blower protect by clamper(Supplied parts) so as to avoid water into AHU kit.
  • Page 18: Test Run

    10. Test Run Operate Test Run according to “10.PRECAUTIONS REGARDING TEST RUN”(10-14kW), “9.TEST RUN” (20-25kW) which is in INSTALLATION INSTRUCTIONS of Outdoor Unit and “AHU System Check List” which is an accessory of this product. If alarm messages are indicated on the outdoor unit PCB (blink of LED) or the wired remote controller, refer to“Check self-diagnosis label attached on the reverse side of the panel for checking the Unit.”(10-14kW) “9-7.
  • Page 19 ―MEMO―...
  • Page 20 PA0612-1082 85464369641001 Authorized representative in EU Printed in Japan Panasonic Testing Centre Panasonic Marketing Europe GmbH Service Part No, CV6233211466 Winsbergring 15, 22525 Hamburg, Germany...

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