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Sanyo CMH2472A Installation Instructions Manual

Inverter multi split system air conditioner
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05-352 KMHS0772_outdoor
3/17/06
- Inverter Multi Split System Air Conditioner -
Please Read Before Starting .................................. 2
1.
GENERAL .......................................................... 3
2.
INSTALLATION SITE SELECTION ................... 4
3.
INSTALLATION PROCESS .............................. 13
4.
AIR PURGING................................................... 16
5.
WIRING INSTRUCTIONS ................................ 19
6.
TEST RUN......................................................... 23
7.
DEVICE ............................................................. 24
8.
INSTALLATION CHECK SHEET ...................... 24
85264189993000 © SANYO 2006
2:56 PM
Page a

INSTALLATION INSTRUCTIONS

This air conditioner uses the new refrigerant R410A.
Contents
Page
SANYO FISHER COMPANY
A DIVISION OF SANYO NORTH AMERICA CORPORATION
21605 Plummer Street
Chatsworth, CA 91311 U.S.A.
COOL / DRY/ HEAT Model
Model Combinations
Combine indoor and outdoor units only as listed
below.
Indoor Unit
KMHS0772
KMHS0972
KMHS1272
KMHS1872
KMHS2472
Combine indoor and outdoor units only as listed in
the combination tables for 3-room or 4-room
outdoor unit as shown in its respective manual.
Power Source:
60 Hz, single-phase, 230 / 208 VAC
Be sure to read the yellow instruction sheet
attached to the outdoor unit for models using the
new refrigerant R410A.
Combination example
Indoor unit B
Indoor unit A
Outdoor unit
Indoor unit D
NOTE
The illustrations are based on the typical appearance of
a standard model. Consequently, the shape may differ
from that of the air conditioner that you are installing.
In Canada
SANYO Canada Inc.
300 Applewood Crescent, Concord
Ontario, L4K 5C7, Canada
For Outdoor Unit
Outdoor Unit
CMH1972
CMH2472
CMH3172
Indoor unit C

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  Summary of Contents for Sanyo CMH2472A

  • Page 1: Table Of Contents

    The illustrations are based on the typical appearance of a standard model. Consequently, the shape may differ from that of the air conditioner that you are installing. SANYO FISHER COMPANY A DIVISION OF SANYO NORTH AMERICA CORPORATION 21605 Plummer Street Chatsworth, CA 91311 U.S.A. For Outdoor Unit...
  • Page 2: Important

    Be careful when picking up and moving the indoor and out- door units. Get a partner to help, and bend your knees when lifting to reduce strain on your back. Sharp edges or thin alu- minum fins on the air conditioner can cut your fingers. Page 2 When Installing…...
  • Page 3: General

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM 1. General This booklet briefly outlines where and how to install the air conditioning system. Please read over the entire set of instructions for the indoor and outdoor units and make sure all accessory parts listed are with the system before beginning.
  • Page 4: Additional Materials Required For Installation

    WARNING and the possibility of fire, do not place obstacles, enclosures and grilles in front of or surrounding the air conditioner in a way that may block air flow. AVOID: direct sunlight. nearby heat sources that may affect performance of the unit.
  • Page 5 05-352 KMHS0772_outdoor 3/17/06 2:56 PM Install the indoor unit more than 3.3' (1 m) away from any antenna or power lines or connecting wires used for tele- vision, radio, telephone, security system, or intercom. Electrical noise from any of these sources may affect operation.
  • Page 6: Indoor Unit

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM 2-2. Connecting Indoor Units (1) Connecting indoor unit for CMH1972 Outdoor unit 3/8"(9.52mm) 3/8"(9.52mm) 3/8"(9.52mm) Outdoor unit 3/8"(9.52mm) 3/8"(9.52mm) 3/8"(9.52mm) Flare 3/8"(9.52mm) Union 1/2"(12.70mm) A joint for connecting tubes of different sizes (3/8"(9.52mm) 1/2"(12.70mm)) Supplied Reducer (2) Connecting indoor unit for CMH2472 Outdoor unit 3/8"(9.52mm)
  • Page 7 05-352 KMHS0772_outdoor 3/17/06 2:56 PM Outdoor unit 3/8"(9.52mm) 3/8"(9.52mm) 3/8"(9.52mm) 1/2"(12.70mm) Outdoor unit 3/8"(9.52mm) 3/8"(9.52mm) 3/8"(9.52mm) 1/2"(12.70mm) Flare 1/2"(12.70mm) Union 5/8"(15.88mm) (1/2"(12.70mm) 5/8"(15.88mm)) Locally purchased Outdoor unit 3/8"(9.52mm) 3/8"(9.52mm) 3/8"(9.52mm) 1/2"(12.70mm) Flare 1/2"(12.70mm) Union 5/8"(15.88mm) (1/2"(12.70mm) 5/8"(15.88mm)) Locally purchased Page 7 Indoor unit 3/8"(9.52mm) (KMHS0772,KMHS0972,KMHS1272)
  • Page 8 05-352 KMHS0772_outdoor 3/17/06 2:56 PM (3) Connecting indoor unit for CMH3172 Outdoor unit 3/8"(9.52mm) 3/8"(9.52mm) 1/2"(12.70mm) 1/2"(12.70mm) Flare 1/2"(12.70mm) Outdoor unit 3/8"(9.52mm) 3/8"(9.52mm) 1/2"(12.70mm) 1/2"(12.70mm) Flare 1/2"(12.70mm) (1/2"(12.70mm Outdoor unit 3/8"(9.52mm) 3/8"(9.52mm) 1/2"(12.70mm) 1/2"(12.70mm) Page 8 Indoor unit 3/8"(9.52mm) 1/4"(6.35mm) 3/8"(9.52mm) 1/4"(6.35mm) 3/8"(9.52mm)
  • Page 9 05-352 KMHS0772_outdoor 3/17/06 2:56 PM Outdoor unit 3/8"(9.52mm) 3/8"(9.52mm) 1/2"(12.70mm) 1/2"(12.70mm) Flare 1/2"(12.70mm) Union 5/8"(15.88mm) (1/2"(12.70mm) Locally purchased Outdoor unit 3/8"(9.52mm) 3/8"(9.52mm) 1/2"(12.70mm) 1/2"(12.70mm) Flare 1/2"(12.70mm) Page 9 Indoor unit 3/8"(9.52mm) 1/4"(6.35mm) 3/8"(9.52mm) 1/4"(6.35mm) 3/8"(9.52mm) 1/4"(6.35mm) 5/8"(15.88mm) 1/4"(6.35mm) Flare 1/2"(12.70mm) Union 3/8"(9.52mm) 5/8"(15.88mm)) (1/2"(12.70mm)
  • Page 10: Outdoor Unit

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM 2-3. Outdoor Unit AVOID: heat sources, exhaust fans, etc. (Fig. 5a) damp, humid or uneven locations. choose a place as cool as possible. choose a place that is well ventilated. allow enough room around the unit for air intake/ exhaust and possible maintenance.
  • Page 11: Outer Dimensions Of Outdoor Unit

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM 2-4. Outer Dimensions of Outdoor Unit (1) CMH1972 23-15/16 5-11/32 15/32 (2) CMH2472 23-15/16 5-11/32 15/32 (3) CMH3172 23-15/16 5-11/32 15/32 Page 11 35-7/16 (900) 2-29/32 1-13/16 2-1/16 Fig. 6a 35-7/16 (900) 2-29/32 1-13/16 2-1/16 2-13/32 Fig.
  • Page 12: Diagram Of Outdoor Unit Installation

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM Diagram of Outdoor Unit Installation 2-5. Never install only a single indoor unit. Be sure to connect indoor and outdoor units only in combinations that are listed in the catalog or in the combination table that was provided with the outdoor unit. (Use caution.
  • Page 13: Installation Process

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM 3. Installation Process Embedding the Tubing and Wiring 3-1. Do not connect tubes to locations that are embedded. Be sure to bind refrigerant tubing and inter-unit cables together with vinyl tape. The power cable must be obtained on-site. (#12: Less than 85 ft.) # ...
  • Page 14: Caution Before Connecting Tubes Tightly

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM NOTE When reaming, hold the tube end downward and be sure that no copper scraps fall into the tube. (Fig. 9) (3) Remove the flare nut from the unit and be sure to mount it on the copper tube. (4) Make a flare at the end of copper tube with a flare tool.* (Figs.
  • Page 15: Insulation Of Refrigerant Tubing

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM Be sure to match refrigerant CAUTION tubing and electric wiring between indoor and outdoor units. For more details, refer to “Tubing Check Control” in the Technical & Service Manual. 3-6. Insulation of Refrigerant Tubing IMPORTANT To prevent heat loss and wet floors due to dripping of con- densation, both tubes must be well insulated with a proper insulation material.
  • Page 16: Air Purging

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM 4. Air Purging Air and moisture remaining in the refrigerant system have undesirable effects as indicated below. Therefore, they must be purged completely. pressure in the system rises operating current rises cooling efficiency drops moisture in the air may freeze and block capillary tubing water may lead to corrosion of parts in the refrigerant system Air Purging with a Vacuum Pump...
  • Page 17 05-352 KMHS0772_outdoor 3/17/06 2:56 PM (4) With the “Lo” knob of the manifold valve open and high-pressure valve (“Hi”) closed completely, run the vacuum pump. Run the pump until the pres- sure is –101 kPa (–76 cmHg). The operation time for the vacuum pump varies with tubing length and the capacity of the pump.
  • Page 18: I Pump Down

    (12) Test run the air conditioner. (See page 23.) (13) While the air conditioner is running, apply liquid soap to check for any gas leaks around the service valves or caps. (14) If there is no leakage, stop the air conditioner.
  • Page 19: Wiring Instructions

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM 5. Wiring Instructions 5-1. 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) Provide a power outlet to be used exclusively for each unit, with a power supply disconnect and circuit break- er for overcurrent protection provided in the exclusive line.
  • Page 20: Wiring System Diagram

    Terminal Fig. 25a Page 20 WARNING To avoid the risk of electric shock, each air conditioner unit must be grounded. For the installation of a grounding device, please observe local electrical codes. Grounding is necessary, especially for units using inverter circuits, in order to release charged electricity and electrical noise caused by high tension.
  • Page 21: How To Connect Wiring To The Terminal

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM 5-4. How to Connect Wiring to the Terminal Loose wiring may cause the WARNING terminal to overheat or result in unit malfunction. A fire hazard may also exist. There- fore, be sure all wiring is tightly connected.
  • Page 22: Wiring Instructions For The Outdoor Unit

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM 5-5. Wiring Instructions for the Outdoor Unit CAUTION Be sure to correctly align inter-unit cables A, B, C and D. Indoor unit A A is the indoor unit with Terminal board refrigerant tubing that is 1 2 3 connected to service valve Inter-unit cables...
  • Page 23: Test Run

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM Regulations on wire size differ from locality to locality. For field wiring requirements, please refer to your local electri- cal codes. Make sure that the installation fully complies with all local and national regulations. (1) Remove access panel “C”. (Fig. 32) (2) Connect the inter-unit and power supply line accord- ing to the drawing on the panel side.
  • Page 24: Connecting A Home Automation Device

    05-352 KMHS0772_outdoor 3/17/06 2:56 PM 7. Connecting a Home Automation device The HA (white) 4P terminal is located on the indoor unit PCB. If a HA device will be used, connect it to this terminal. 8. Installation Check Sheet The strength of the installation location is sufficient to support the A/C weight. The indoor and outdoor units are installed level and vertically.