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Table of Contents
- 1 Table of Contents
- 2 Safety Precautions
- 3 Diagram of Refrigerant Cycle & Wiring
- 4 Refrigerant Flow Diagram
- 5 Electrical Wiring Diagram
- 6 Installation Instructions
- 7 Transportation and Handling before Installation
- 8 Installation Locations Selection
- 9 Drainage Elbow and Drain Hose Installation
- 10 Outdoor Unit Installation
- 11 Refrigerant Piping
- 12 Wiring
- 13 Trial Run
- Download this manual
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Table of Contents
Related Manuals for Hitachi RAS-1.0PNNBDH1
Summary of Contents for Hitachi RAS-1.0PNNBDH1
- Page 1 – DC-INVERTER SERIES OUTDOOR UNITS RAS-1.0PNNBDH1 RAS-1.5PNNBDH1 RAS-2.0PNNBDH1 RAS-3.0PNNBDH1 RAS-4.0PNNBDH1 HO2021388HA...
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Page 2: Table Of Contents
Contents Safety Precautions............................1 Diagram of Refrigerant Cycle & Wiring ......................3 Refrigerant Flow Diagram ..........................3 Electrical Wiring Diagram..........................3 Installation Instructions..........................4 Transportation and Handling before Installation ....................4 Installation Locations Selection........................4 Drainage Elbow and Drain Hose Installation....................5 Outdoor Unit Installation..........................5 Refrigerant Piping ............................6 Wiring ................................9 Trial Run ..............................11 NOTE:... -
Page 3: Safety Precautions
Safety Precautions 1 This air conditioner uses R410A refrigerant. 2 Since the max. working pressure is 550 psig (3.8MPa) [R22:450 psig (R22:3.1MPa)], some of the piping and installation and service tools are special. 3.This air conditioner uses power supply: 208/230V ~/60Hz. Please read these SAFETY PRECAUTIONS carefully to ensure correct installation. - Page 4 Safety precautions CAUTION ·Perform grounding Do not connect the earth wire to a gas pipe, water pipe, lightning rod or telephone earth wire. Defective grounding could cause an electric shock. ·Do not install the unit in a place where inflammable gas leaks. If gas leaks and accumulates in the area surrounding the unit, it could cause an explosion.
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Page 5: Diagram Of Refrigerant Cycle & Wiring
Diagram of Refrigerant Cycle & Wiring Refrigerant Flow Diagram INDOOR UNIT OUTDOOR UNIT Gas piping Compressor Accumulator Wide service valve 4-way valve Liquid piping Service valve Heating cycle Cooling cycle Electrical Wiring Diagram Indoor Unit Outdoor Unit Terminal Terminal Power Connecting Cord Power Supply 1.0/1.5/2.0/3.0/4.0HP (9K/12K/18K/24K/36K) -
Page 6: Installation Instructions
Installation Instructions Transportation and Handling before Installation Transport the product as close to the installation location as practical before unpacking. ·Hanging Method ·Handling When hanging the unit, ensure a balance of the unit, check If the unit has no package, Please protect it with safety and lift it up smoothly. -
Page 7: Drainage Elbow And Drain Hose Installation
Installation Instructions Drainage Elbow and Drain Hose Installation Install Drainage Elbow and Drain Hose ·The condensate water may drain from the outdoor unit when the unit operates in heating mode. In order to avoid disturbing neighbors and to protect the environment, it is necessary to install a drainage elbow and a drain hose to drain out the condensate water. -
Page 8: Refrigerant Piping
Installation instructions Refrigerant Piping 1. Piping Requirement Outer Diameter of Pipe in. (mm) Model Liquid 1.0/1.5HP(9K/12K) ø3/8(ø9.52) ø1/4(ø6.35) 2.0HP(18K) ø1/2(ø12.7) ø1/4(ø6.35) 3.0HP(24K) ø (ø15.88) ø (ø9.52) 4.0HP(36K) ø (ø19.05) ø (ø9.52) The shorter the refrigerant piping is, the better the performance will be. So the connecting pipe should be as short as possible. - Page 9 Installation instructions ！ 危 险 C A U T I O N When installing pipe through Do not place the pipe Correct Incorrect the wall, secure a cap at the directly on the ground. end of the pipe. Incorrect Correct Incorrect Correct Rain water can...
- Page 10 Installation instructions (6) After finishing connecting the refrigerant pipes, keep it warm with Clamp (field-supplied) Insulation (field-supplied) the insulation material. ·For outdoor unit side, surely insulate every piping including valves. Refrigerant pipe ·Cover piping joints with pipe cover. (field-supplied) ·Using piping tape, apply taping starting from the entry of outdoor unit. - Fix the end of piping tape with adhesive tape.
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Page 11: Wiring
Installation instructions · Additional r efrigerant c harge The unit has been filled with refrigerant. Please calculate additional charge according to “Piping Requirement” . After finishing vacuum pump procedures, first exhaust air from charge hose, then open valves, charge refrigerant as “liquid”... - Page 12 Installation instructions Wires Connect Steps 1.0~3.0HP(9K~24K) (1) Wiring distribution cover removal Unscrew the mounting screws to remove the wiring distribution cover. (2) Fasten the power supply cable and the transmitting cable to the conduit holder using the lock nut. (3) Connect the power supply cable and the transmitting cable to terminal. (4) Fasten the power supply cable and the transmitting cable with the cable clamp.
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Page 13: Trial Run
Installation instructions Electrical Data Fuse or Power Source Transmitting Model Power Supply Circuit Cable Size Cable Size Rated Current Nominal Sensitive Breaker (A) Current (mA) 1.0HP(9K) 208/230V ~/60Hz 3×14AWG 4×16AWG 1.5HP(12K) 208/230V ~/60Hz 3×14AWG 4×16AWG 2.0HP(18K) 208/230V ~/60Hz 3×12AWG 4×16AWG 3.0HP(24K) 208/230V ~/60Hz 3×12AWG... - Page 16 Specifications in this document are subject to change without notice, in order that Hitachi-Johnson Controls Air Conditioning, Inc. may bring the latest innovations to their customers. Hitachi-Johnson Controls Air Conditioning, Inc. © 20 21 Hitachi- Johnson Controls Air Conditioning, Inc.