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INSTALLATION AND MAINTENANCE MANUAL
HITACHI SPLIT AIR CONDITIONERS
Installation and Maintenance Manual
Models
< Indoor Units >
Heat Pump Type
RPIL-1.0UNZ1NH
RPIL-1.5UNZ1NH
RPIL-2.0UNZ1NH
RPIM-3.0UNZ1NH
RPIM-4.0UNZ1NH
RPIH-6.0UNZ1NH
RPIH-6.5UNZ1NH
<
>
Outdoor Units
Heat Pump Type
RAS-1.0UNZGNH1
RAS-1.5UNZGNH1
RAS-2.0UNZGNH1
RAS-3.0UNZGNH1
RAS-4.0UNZGMH1
RAS-6.0UNZGMH1
RAS-6.5UNZGMH1
Cooling Only Type
RPIL-1.0TNZ1NH
RPIL-1.5TNZ1NH
RPIL-2.0TNZ1NH
RPIM-3.0TNZ1NH
RPIM-4.0TNZ1NH
RPIH-6.0TNZ1NH
RPIH-6.5TNZ1NH
Cooling Only Type
RAS-1.0TNZGNH1
RAS-1.5TNZGNH1
RAS-2.0TNZGNH1
RAS-3.0TNZGNH1
RAS-4.0TNZGMH1
RAS-6.0TNZGMH1
RAS-6.5TNZGMH1
HPM2017006HA
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Table of Contents
Related Manuals for Hitachi RAS-1.0UNZGNH1
Summary of Contents for Hitachi RAS-1.0UNZGNH1
- Page 1 INSTALLATION AND MAINTENANCE MANUAL HITACHI SPLIT AIR CONDITIONERS Installation and Maintenance Manual Models < Indoor Units > Heat Pump Type Cooling Only Type RPIL-1.0TNZ1NH RPIL-1.0UNZ1NH RPIL-1.5TNZ1NH RPIL-1.5UNZ1NH RPIL-2.0TNZ1NH RPIL-2.0UNZ1NH RPIM-3.0UNZ1NH RPIM-3.0TNZ1NH RPIM-4.0UNZ1NH RPIM-4.0TNZ1NH RPIH-6.0UNZ1NH RPIH-6.0TNZ1NH RPIH-6.5TNZ1NH RPIH-6.5UNZ1NH < > Outdoor Units...
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Page 2: Table Of Contents
Contents Caution Statements..............................Composition of the Air-Conditioner ........................3 Special Remarks ..............................4 Troubleshooting ..............................Diagram of Refrigerant Cycle & Wiring 1.Refrigerant Flow Diagram ..........................5 2.Electrical Wiring Diagram ..........................5 Installation and Maintenance 1. Safety Notice ..............................6 2. The Tools and Instruments for Installation ......................7 3. -
Page 3: Caution Statements
Caution Statements Alert Symbols： DANGER : The symbol refers to a hazard which can result in severe personal injury or death. : The symbol refers to a hazard or an unsafe practice which may result in severe personal injury WARNING ... - Page 4 Caution Statements CAUTION: In order to avoid a hazard due to inadvertent resetting of the thermal cut-out, WARNING this appliance must not be supplied through an external switching device, such as a timer, or connected to a circuit that is regularly switched on and off by the utility. The information of dimensions of the space necessary for correct installation of the appliance including the minimum permissible distances to adjacent structures is detailed in “Installation and Maintenance”...
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Page 5: Composition Of The Air-Conditioner
Composition of the Air-conditioner Indoor Unit Air inlet Electric box Air outlet Outdoor Unit 1.0~6.0HP 6.5HP Remote Controller (optional) You can control the air-conditioner with the wired remote controller or wireless remote controller. It is used for power ON/OFF, setting the operation mode, temperature, fan speed and other functions. There are different types of remote controllers can be used. -
Page 6: Special Remarks
Operation manual Special Remarks ● 3 minutes protection after compressor stop To protect compressor, it will be continue off for at least 3 minutes once it has stopped. ● 5 minutes protection Compressor must run 5 minutes at least once start running. In the 5 minutes, compressor will not stop even the room temperature reaches the setting temperature point unless you use remote controller to turn off the unit (all indoor unit can be turned off by user). -
Page 7: Diagram Of Refrigerant Cycle & Wiring
Diagram of refrigerant cycle & Wiring 1. Refrigerant Flow Diagram INDOOR UNIT OUTDOOR UNIT Gas piping Compressor Accumulator Wide service valve 4-way valve Liquid piping capillary tube Service valve Heating cycle Note: Accumulator is only applicable to 48k and 60k air-conditioners. Cooling cycle 2. -
Page 8: Installation And Maintenance
Installation and Maintenance 1. Safety Notice WARNING ·Installation should be performed by a professional. (Improper installation may cause water leakage, electrical shock or fire.) · Install the unit according to the instruction given in this manual. (Incomplete installation may cause water leakage, electrical shock or fire.) ·... -
Page 9: The Tools And Instruments For Installation
Installation and Maintenance 2. The Tools and Instruments for Installation Number Tool Number Tool Standard screwdriver Knife or wire stripper Vacuum pump Gradienter Charge hose Hammer Tube bender Churn drill Adjustable wrench Tube expander Tube cutter Inner hexagon spanner Cross head screw-driver Tape measure 3. -
Page 10: Installation
Installation and Maintenance · Optimum air distribution is ensured. 3.2 Installation · The air path is not blocked. · Condensation can drain properly. 3.2.1 Suspension bolts · The ceiling is strong enough to bear the weight of the (1) Consider the tube direction, wiring and maintenance indoor unit. - Page 11 Installation and Maintenance Air outlet Hanger bracket Suspension bolt Rack Indoor unit Double nuts and washers Fig. 3.6 3.2.4 The horizontal adjustment of the indoor unit (1) Make sure that the hanger bracket is fixed by the nuts and the washers. Air inlet (2) Adjust the height of the unit.
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Page 12: Refrigerant Tubing
Installation and Maintenance 4. Refrigerant Tubing (2) As shown in Fig. 4.3, n ut tightening with 2 spanners. DANGER Use the refrigerant according to outdoor nameplate. When carrying on the leakage check and test, do not mix in the oxygen, the acetylene and flammable and the reactive gas, these gases are quite dangerous, and may possibly cause explosion. -
Page 13: Drain Tubing
Installation and Maintenance 5. Drain Tubing · Drain tubing passing indoors · Install the drain tubing · Drain sockets. · Referring the figure below, insulate the drain socket Refrigerant tubes and drain hose using the included large sealing pad. Sealing material Sealing material Drain tube connection hole ·... -
Page 14: Electrical Wiring
Installation and Maintenance 6. Electrical Wiring 6.1 General Check CAUTION · When clamping the wiring, use the included clamping material as shown in the Fig. 6.1 to prevent outside pressure being exerted on the wiring connections and clamp firmly. · When doing the wiring, make sure the wiring is neat and does not cause the control box lid to stick up, then close the cover firmly. -
Page 15: Hange Of Static Pressure
Installation and Maintenance Installation and Maintenance 6.2 Change of Static Pressure The static pressure outside the indoor unit can be chosen. You can change the static pressure by changing the fan motor terminal which refer to following Fig. 6.2.1. Fan motor Low static pressure Model Low static... -
Page 16: The Installation Of The Outdoor Unit
Installation and Maintenance 7. The Installation of the Outdoor Unit Tube length L Indoor unit 7.1 Installation Sites Avoid Height difference H Outdoor unit Direct Sunlight Aisle or Sideway Thick Oil Fog Wet or Uneven Place Container With Flammable Materials Near Heat Source/Ventilation Fan Add. -
Page 17: Refrigerant Tubing
Installation and Maintenance 8.Refrigerant Tubing The two refrigerant tubes (and electrical wire if local 8.1 Flaring with Tube Expander codes permit) should be taped together with white Note: A good flare have the following characteristics: armoring tape. The drain hose may also be included Inside surface is glossy and smooth. -
Page 18: Air Purging And Test Run
Installation and Maintenance 9.Air purging and test run WARNING · Only after all the checking points have been checked Air and moisture remaining in the refrigerant system the unit can be operated. have undesirable effects. (A) Check and make sure that the resistance of the Therefore, they must be purged completely following terminal to ground is more than 2M , otherwise, you Ω... -
Page 19: Electrical Installation
Installation and Maintenance 9.5 Electrical Installation ● Use an ELB (Electric Leakage Breaker). If not used, it may cause an electric shock or a fire. ● Do not operate the system until all the check points have been cleared. (A) Check to ensure that the insulation resistance is more than Ω, by measuring the resistance between ground and the terminal of the electrical parts. - Page 20 They can take this product for environmental safe recycling. 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.
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