Sanyo CM1972 User Manual

85264190214003 © SANYO 2007
Contents
Page
IMPORTANT!
Please Read Before Starting .................................. 2
1. GENERAL .......................................................... 3
1-1. Tools Required for Installation (not supplied)
1-2. Accessories Supplied with Unit
1-3. Optional Copper Tubing Kit
1-4. Type of Copper Tube and Insulation Material
1-5. Additional Materials Required for Installation
2. INSTALLATION SITE SELECTION ................... 4
2-1. Indoor Unit
2-2. Connecting Indoor Units
2-3. Outdoor Unit
2-4 Baffle Plate for the Outdoor Unit
(CLM models only)
2-5. Outer Dimensions of Outdoor Unit
2-6. Diagram of Outdoor Unit Installation
3. INSTALLATION PROCESS .............................. 15
3-1. Embedding the Tubing and Wiring
3-2. Use of the Flaring Method
3-3. Flaring Procedure with a Flare Tool
3-4. Caution before Connecting Tubes Tightly
3-5. Tubing Connections
3-6. Insulation of Refrigerant Tubing
3-7. Taping the Tubes
3-8. Finishing the Installation
4. AIR PURGING................................................... 18
I Air Purging with a Vacuum Pump (for Test Run)
I Pump Down
5. WIRING INSTRUCTIONS ................................. 21
5-1. General Precautions on Wiring
5-2. Recommended Wire Length and Diameter
5-3. Wiring System Diagram
5-4. How to Connect Wiring to the Terminal
5-5. Wiring Instructions for the Outdoor Unit
6. TEST RUN......................................................... 25
7. CONNECTING A HOME AUTOMATION
DEVICE ............................................................. 26
8. INSTALLATION CHECK SHEET ...................... 26
INSTALLATION INSTRUCTIONS
Model Combinations
Combine indoor and outdoor units only as listed
below.
Indoor Unit Outdoor Unit
KMS0772 CM1972
KMS0972 CM2472
KMS1272 CM3172
KMS1872 CLM1972
KMS2472 CLM2472
CLM3172
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
– Inverter Multi Split System Air Conditioner –
COOL/DRY Model
This air conditioner uses the new refrigerant R410A.
Be sure to read the yellow instruction sheet
attached to the outdoor unit for models using the
new refrigerant R410A.
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.
NOTE
Indoor unit A
Indoor unit B
Indoor unit C
Indoor unit D
Outdoor unit
Combination example
For Outdoor Unit
SANYO Commercial Solutions In Canada
A Division of SANYO North America Corporation SANYO Canada Inc.
Cornerstone Business Park, 1-300 Applewood Crescent, Concord
1062 Thorndale Avenue, Ontario, L4K 5C7, Canada
Bensenville, IL 60106, U.S.A.
Refrigerant service valve size = 5/16"
NOTE
07-156 CM-CLM1972-3172 6/6/07 9:35 AM Page a

Sanyo CM1972 Specifications

General

Type	Split System
Power Consumption (Cooling)	1.8 kW
Noise Level (Outdoor)	52 dB
Power Supply	220V, 50Hz
Operating Temperature (Cooling)	18°C to 43°C
Cooling Capacity	18000 BTU/h

Summary

DC INVERTER MULTI-SYSTEM AIR CONDITIONER

Applicable Indoor Units

Lists compatible wall-mounted indoor units for each outdoor model.

Important Safety and Handling Precautions

General Safety Warnings

Covers essential safety notices, warnings, and cautions for installation and service.

Specifications and Performance Data

Unit Specifications

Provides detailed specifications for outdoor units CM1972, CM2472, CM3172.

Performance Data and Charts

Includes temperature charts and cooling capacity tables for various operating conditions.

Electrical Data and Functions

Electric Wiring Diagrams

Wiring diagrams for outdoor units CM1972, CM2472, and CM3172.

System Functions and Protections

Explains operational modes and protective features like current control.

Troubleshooting and Refrigerant Handling

Troubleshooting Procedures

Covers precautions, error diagnosis, part checks, and fan motor issues.

Refrigerant R410A Servicing Precautions

Details R410A characteristics, tools, procedures, and safety for servicing.

Installation Instructions

General Installation Information

Covers tools, site selection, process, air purging, wiring, and test runs.

Unit Combination Tables

CM1972: 3-Room Unit Combinations

Details valid indoor unit combinations for CM1972 outdoor unit.