Hitachi RAK25NH4 Service Manual

Service Manual for Hitachi RAK25NH4 Air Conditioner (115 pages)

Specifications:

1084/1084275-rak25nh4.pdf file (28 Oct 2023)
  • Manufacturer: Hitachi
  • Category of Device: Air Conditioner
  • Document: RAK25NH4, File Type: PDF Service Manual
  • Updated: 28-10-2023
  • Count of Pages: 115
Download RAK25NH4 Manual (115 pages)

Read PDF Document Online:

Data: UPD 28th October 2023

Hitachi RAK25NH4 Air Conditioner PDF Service Manual (Updated: Saturday 28th of October 2023 01:36:18 PM)

Rating: 4.5 (rated by 24 users)

Compatible devices: RAK-25NH5, RAS-50WX8W, RAS-SD13CCT, RAS-18YH5, 4FSVN1Q, RAS-18PPAG, RPC-30MH1, RAC-S19CE.

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Text Version of Hitachi RAK25NH4 Air Conditioner Manual (Summary of Contents)

(Ocr-Read of Hitachi RAK25NH4 Document (Main Content), UPD: 28 October 2023)

  • 5, – 4 – 1. In quiet operation or stopping the running, slight flowing noise of refrigerant in the refrigerating cycle is heard occasionally, but this noise is not abnormal for the operation. 2. When it thunders near by, it is recommend to stop the operation and to disconnect the power cord …

  • 58, – 68 – (3) Smoothing capacitor (C501, C502, C503) This smoothes (averages) the voltage rectified by the diode stacks. <Notes> Smoothing capacitor C501 is not available for model RAC-25NH4 and RAC-35NH4. (4) Smoothing capacitor (C010, C011) This smoothes (averages) the voltage rectified b…

  • 97, – 107 – LD301 blinks 9 time. Communication error. Is DC 35V being output at terminals C and D? (Normally, DC 33-38.5V is output.) Yes Interface relay Coil terminal Contact terminal Is DC 35V being output across R914? Is DC 12V being supplied across the control side (coil terminal) of…

  • 94, – 104 – 6. Check the main P.W.B (power circuit) Is DC 35V being output between cathode and anode of D101? Is DC 12V being output? Is DC 5V being output? Is ICP2 normal? Normal if it is less than 1Ω. Blown (open) if it is 1Ω or more Is ICP1 normal? Normal if it is less than 1…

  • 57, Hitachi RAK25NH4 – 67 – Model RAC-25NH4, RAC-35NH4, RAC-50NH4 1. Power Circuit ● This circuit full-wave rectifies 220-230V AC applied between terminals L and N, and boosts it to a required voltage with the active module, to create a DC voltage. The voltage becomes 260-360V when the compressor is operated (1) A…

DOC-8ac6ddb7:

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