before installation 1. preparing for installation 2. installing the heater

SG79V075H01
Part No.
SPLIT-TYPE AIR CONDITIONERS
OUTDOOR UNIT DEFROST HEATER
Specifications
Description
HEATER ASSEMBLY (A09)
E12 A49 527
Rated Voltage
Electric Power
208 / 230 V
106 / 130 W
Installation Manual
BEFORE INSTALLATION
The defrost heater prevents freezing of outdoor unit base. The base may freeze when the heating operation is performed for a long time in very low temperature, high humidity condition.
• Wear protective equipment such as gloves for your safety.
• Be careful not to cut your hands with the aluminum tape.
• Be careful not to wet electrical parts with water or snow during installation. Wet electrical parts could cause malfunction.
• Do not install the outdoor unit directly on the ground. Install the outdoor unit on a raised platform, such as on racks, to suppress freezing.
Components
Defrost heater
1
Power P.C. board
1
Self drilling screw
2
Aluminum tape
1
Cable tie
1
Wiring diagram
1
Heater support
1
Insulation
1
Spec label
1
1. PREPARING FOR INSTALLATION
THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY
• Be sure to read these safety precautions and instructions.
• Be sure to observe the warnings and cautions specified here as they include important items related to safety.
• After reading this manual, be sure to store it for future reference.
WARNING
(Could lead to death, serious injury, etc.)
n Do not install the unit by yourself (user).
n Be sure to use the parts provided or specified parts for the installation work.
Incomplete installation could cause fire, electric shock, or injury due to the unit falling, Incomplete installation could cause fire, electric shock, or injury.
or leakage of water. Consult the dealer from whom you purchased the unit or a qualified installer.
n Ground the unit correctly.
Do not connect the ground to a gas pipe, water pipe, lightning rod, or telephone ground. Defective grounding could cause electric shock.
CAUTION
(Could lead to serious injury in particular environments when operated incorrectly.)
n Depending on the installation area, install a Ground Fault Interrupt (GFI) circuit
breaker.
If the Ground Fault Interrupt (GFI) circuit breaker is not installed, an electric shock
could occur.
4. FIXING THE WIRES
(1) Make sure to switch off the power supply or turn off the breaker.
(2) Remove the top panel, front panel, service panel, motor support, and elect assy.
(1) Place the lead wires of the defrost heater , fan motor, and ambient temp. thermistor as shown in the figure below. Secure them with the cable tie .
If the lead wires slacken, there is a possibility that they touch the propeller fan. Be sure to secure the wires with the cable tie 5 for safety. Cut off the surplus
of the cable tie .
(2) Apply the insulation on the place indicated in the figure below. Secure all the wires tightly with the clamp.
(3) Install the elect assy on the fixed place. Connect the lead wires from the defrost heater to CN722 on the power P.C. board .
Elect assy
Top panel
Insulation
Motor support
Cable tie
Service panel
Separator
Clamp
Front panel
Defrost heater
2. INSTALLING THE HEATER
(1) Hold the left lower side of the heat exchanger, and slightly lift up the heat exchanger.
(2) Insert the defrost heater under the heat exchanger, and align it with the groove on the base.
After positioning the defrost heater , secure it to the base with the aluminum tape .
In order to fix the defrost heater to the base, fix the heater support to the base with 2 self drilling screws
(3) Put the heat exchanger back in place, and install the motor support and the propeller fan.
(Refer to the figure below for details.)
.
5. AFTER INSTALLATION
Fix heater support with
self drilling screws
Motor support
Clamp
Heat exchanger
Attach the wiring diagram provided with this installation manual to the inner side of the top panel.
Reinstall the front panel, top panel, and service panel.
Attach the spec label by the spec name plate.
Turn on the breaker, and perform test run to confirm that it works properly.
Do not install either drain socket which is provided with the outdoor unit or purchased separately.
Inside of the drain hose and/or drain socket may freeze if the drain socket is installed.
Defrost heater
Original wiring diagram
Aluminum tape
Separator
Heater support
Spec name plate
Spec label
Defrost heater
Top panel
Aluminum tape
Aluminum tape
.
(1)
(2)
(3)
(4)
Wiring diagram
Heater support
3. REPLACING THE POWER P.C. BOARD
(1) Replace the original power P.C. board with the power P.C. board
original wiring diagram. Be careful not to make mis-wiring.
. Refer to the
HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO
100-8310, JAPAN
MSZ-A09.indd
1
2009/04/15
15:24:10
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