ActronAir MULTIELITE MRC-052AS-2 Installation Manual
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ActronAir MULTIELITE MRC-052AS-2 Installation Manual

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INSTALLATION MANUAL
Multi Split System Air Conditioner
Model Numbers:
MRC-052AS-2
MRC-071AS-3
MRC-100AS-4
MRC-110AS -5
MRC-135AS -5
IMPORTANT NOTE:
Please read this manual carefully before installing or operating your new air conditioning unit and keep it available for future
reference. This owner's manual only refers to use of the outdoor unit. When using the indoor unit, refer to the owner's
manual for the indoor unit.

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Summary of Contents for ActronAir MULTIELITE MRC-052AS-2

  • Page 1 INSTALLATION MANUAL Multi Split System Air Conditioner Model Numbers: MRC-052AS-2 MRC-071AS-3 MRC-100AS-4 MRC-110AS -5 MRC-135AS -5 IMPORTANT NOTE: Please read this manual carefully before installing or operating your new air conditioning unit and keep it available for future reference. This owner’s manual only refers to use of the outdoor unit. When using the indoor unit, refer to the owner’s manual for the indoor unit.

  • Page 2: Table Of Contents

    Table of Contents Installation Manual Safety Precautions ................. 04 Components .................. 05 Installation Overview ..............06 Refrigerant Piping Connection ............11 Wiring ................... 12 Leak Test and Air Evacuation ............22 Electrical & Gas Leak Checks ............25 Test Run ..................26 Function of Automatic Wiring/Piping Connection ......
  • Page 3 This refers to electrical works only This manual is a controlled document which contains confidential and proprietary information. Distribution, modification, copying and/or reproduction are prohibited without written consent from ActronAir Product design and specifications are subject to change without prior notice for product improvement.

  • Page 4: Safety Precautions

    1. Safety Precautions Multi Split System WARNING 1. Carefully read all the Safety Precautions before installation. 2. In certain functional environments, such as kitchens, server rooms, etc., the use of specially designed air-conditioning units is highly recommended. 3. Only qualified HVAC technicians* should install, repair and service this air conditioning unit. Improper service or alteration by unqualified technician could result in significant and major damage to the product or property which may render your warranty null and void.

  • Page 5: Components

    2. Components Multi Split System The air conditioning system comes with the following components. Use all of the installation parts and accessories to install the air conditioner. Improper installation may result in water leakage, electrical shock and fire, or cause the equipment to fail.

  • Page 6: Installation Overview

    3. Installation Overview Multi Split System Installation Overview 1(L) 2(N) Install the outdoor unit Connect the refrigerant pipes and Connect the wires perform Leak test Leak test and evacuate the Perform a test run refrigeration system CAUTION • A minimum pipe run of 6 metres is recommended to minimise vibration & excessive noise. Page 6...
  • Page 7 3. Installation Overview Multi Split System Specification Table 3.1 Indoor units that can be used in combination number of connected units Compressor stop start frequency stop time 3 min or more voltage supply 230VAC (-6%/+10%) Power source voltage voltage drop during start �5% of rated 1 outdoor Table 3.2...
  • Page 8 3. Installation Overview Multi Split System Outdoor Unit Installation Instructions Step 1: Select installation location þ The area must be free of combustible gases and chemicals The outdoor unit should be installed in the location that meets the following requirements: þ...
  • Page 9 3. Installation Overview Multi Split System Outdoor Unit Installation Instructions Table 3.3 Dimensions of Multi Split Outdoor Unit (mm) Mounting Dimensions Outdoor Unit Dimensions Model Number Distance A Distance B W x H x D (mm) (mm) (mm) MRC052AS-2 845 x 702 x 363 MRC-071AS-3 MRC-100AS-4 946 x 810 x 410...
  • Page 10 3. Installation Overview Multi Split System Overview Drain Joint Installation Connecting 7kW Indoor Unit Before bolting the outdoor unit in place, you must install The 7kW indoor unit can only be connected to the A port, the drain joint at the bottom of the unit. (See Fig. 3.8). if there are two 7kW indoor units, they can be connected to A and B port.

  • Page 11: Refrigerant Piping Connection

    Multi Split System 4. Refrigerant Pipe Connection Safety Precautions WARNING • All field piping must be completed by a qualified HVAC technician and must comply with local and national regulations. • When the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration in the room from exceeding the safety limit in the event of refrigerant leakage.

  • Page 12: Wiring

    5. Wiring Multi Split System Safety Precautions WARNING • Be sure to isolate the power supply before working on the unit. • All electrical wiring must be done according to local and national regulations. • Electrical wiring must be done by qualified technician. Improper connections may cause electrical malfunction, injury and fire.
  • Page 13 5. Wiring Multi Split System Wiring Diagram MRC-052AS-2 Page 13...
  • Page 14 5. Wiring Multi Split System Wiring Diagram MRC-071AS-3 Page 14...
  • Page 15 5. Wiring Multi Split System Wiring Diagram MRC-100AS-4 Page 15...
  • Page 16 5. Wiring Multi Split System Wiring Diagram MRC-110AS-5 Page 16...
  • Page 17 5. Wiring Multi Split System Wiring Diagram MRC-135AS-5 Page 17...
  • Page 18 5. Wiring Multi Split System Field Wiring Connection CAUTION Connect the field wirings to the terminals as specified on the terminal block of indoor and outdoor units. Magnetic Ring (supplied, on selected outdoor models). Clip this around the connecting wires during installion. MRC-052AS-2 MRC-052AS-2 Connecting Diagram SERENE / MINI CASSETTE...
  • Page 19 L(L1) N(L2) S L(L1) N(L2) S TO UNIT A TO UNIT B L(L1) N(L2) S L(L1) N(L2) S L(L1) N(L2) S 1(L) 2(N) S 1(L) 2(N) S 1(L) 2(N) S TO UNIT A TO UNIT B TO UNIT C TO UNIT A TO UNIT B TO UNIT C 5.
  • Page 20 5. Wiring Multi Split System CAUTION After the confirmation of the above conditions, prepare the wiring as follows: • Separate isolator (sub-circuit) must be installed for each air-conditioning system. Make sure to follow the wiring diagram provided with unit (back of control cover). •...
  • Page 21 5. Wiring Multi Split System MAINS WIRING (220-240VAC) (Single Phase + Neutral) 50Hz CONTROL WIRING (220-240VAC) (Single Phase + Neutral) 50Hz EXTRA LOW VOLTAGE DATA CONTROL WIRING 2 core shielded data cable 14/0.20 (0.44mm maximum 65 metres EXTRA LOW VOLTAGE DATA CONTROL WIRING 4 core shielded data cable (0.75mm maximum 12 metres INDOOR...

  • Page 22: Leak Test And Air Evacuation

    6. Leak Test and Air Evacuation Multi Split System Leak Test NOTE Leak testing and evacuation must be conducted on each circuit with connected indoor unit. Run interconnecting pipe work from condenser to evaporator. To indoor unit Connect the liquid and suction pipe to the indoor and outdoor unit flare connections (please see refrigerant piping connection instruction).
  • Page 23 6. Leak Test and Air Evacuation Multi Split System 9. Watch the Pressure Gauge for one minute to make sure Evacuation Instructions that there is no change in pressure. The Pressure Gauge should read slightly higher than atmospheric pressure. 10. Remove the charge hose from the service port. Before using manifold gauge and vacuum pump, read their 11.
  • Page 24 6. Leak Test and Air Evacuation Multi Split System Note on Adding Refrigerant CAUTION • Refrigerant charging must be performed after wiring, pressure test and evacuation. • DO NOT exceed the maximum allowable quantity of refrigerant or overcharge the system. Doing so can damage or impact the unit’s function.

  • Page 25: Electrical & Gas Leak Checks

    7. Electrical & Gas Leak Checks Multi Split System Electrical Safety Test Perform the electric safe check after completing installation: 1. Insulated resistance The insulated resistance must be more than 2MΩ. 2. Grounding work After Finishing grounding work, measure the grounding resistance by visual detection and grounding resistance tester.

  • Page 26: Test Run

    8. Test Run Multi Split System Before Test Run Test Run Instructions (continued) 5. For the Outdoor Unit A test run must be performed after the entire system has a. Check to see if the refrigeration system is leaking. been completely installed. Confirm the following points b.

  • Page 27: Function Of Automatic Wiring/Piping Connection

    9. Automatic Correction Function Multi Split System Automatic Wiring/Piping Correction Function New product is capable of automatic correction of wiring/piping error. Press the “check switch” on the outdoor unit PCB board for 5 seconds until LED display “CE”, then wait approximately 5-10 minutes after the switch is pressed, the “CE” will then disappear and the wiring/piping error will be corrected, and wiring/piping will be properly connected.

  • Page 28: Maintenance

    10. Maintenance Multi Split System Maintenance Procedures DANGER This section describes the procedures that must be performed as a part of normal maintenance program. Beware of Rotating Fan Blades ! Regular servicing of equipment by licensed HVAC • Always make sure that all power supply, to the technician is highly recommended.
  • Page 29 10. Maintenance Multi Split System Electrical Service Frequency Parts Detail of Service Check Service Methods Printed Circuit Tighten Terminals as necessary on  Visual Inspection. Boards printed circuit boards. Check all electrical Electrical  terminals, mains, Re-tighten if loose. Connections communications, etc.
  • Page 30 10. Maintenance Multi Split System Outdoor Unit Service Frequency Parts Detail of Service Check Service Methods For highly corrosive environment, Visual check for wash panels quarterly with water Casing / Panels  damage, rust and dust & neutral detergent solution. Wax and Frames accumulation.
  • Page 31 Notes Multi Split System ..............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................Page 31...
  • Page 32 1300 522 722...

This manual is also suitable for:

Multielite mrc-071as-3Multielite mrc-100as-4Multielite mrc-110as-5Multielite mrc-135as-5

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