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INSTALLATION MANUAL
1. Before Installation
Meanings of symbols displayed on indoor unit and/or outdoor unit
Warning
1-1. The Following Should Always Be Observed For Safety
•
Do not install the unit by yourself (user). (*)
Perform the installation securely referring to the
installation manual.
When installing the unit, use appropriate protective
equipment and tools for safety.
Install the unit securely in a place which can bear
the weight of the unit.
Do not alter the unit.
experienced electrician, according to the installation
manual. Be sure to use an exclusive circuit. Do not
connect other electrical appliances to the circuit.
Earth the unit correctly.
Do not damage the wires by applying excessive
pressure with parts or screws.
up the indoor P.C. board or wiring works.
the terminal block connecting sections so the stress
of the wires is not applied to the sections. Do not
extend the wires, or use intermediate connection.
gas may leak.
Do not use intermediate connection of the power
cord or the extension cord and do not connect many
devices to one AC outlet.
for the installation work.
REFRIGERANT
When plugging the power supply plug into the
outlet, make sure that there is no dust, clogging,
-
or loose parts in both the outlet and the plug. Make
sure that the power supply plug is pushed com-
pletely into the outlet.
Attach the electrical cover to the indoor unit and the
service panel to the outdoor unit securely.
When installing, relocating, or servicing the unit,
make sure that no substance other than the speci-
Do not discharge the refrigerant into the atmos-
phere. If refrigerant leaks during installation, ven-
tilate the room. Check that the refrigerant does not
leak after installation has been completed.
Use appropriate tools and piping materials for instal-
lation.
When pumping down the refrigerant, stop the com-
pressor before disconnecting the refrigerant pipes.
When installing the unit, securely connect the re-
frigerant pipes before starting the compressor.
in this manual.
The unit shall be installed in accordance with na-
Scale
Warning
-
(*) In Australia, electrical work shall be performed by
tional wiring regulations.
equipment, completely remove all of the refrigerant
from the air conditioner and ensure that the area is
well-ventilated.
Do not use means to accelerate the defrosting pro-
cess or to clean, other than those recommended by
the manufacturer.
The appliance shall be stored in a room without
continuously operating ignition sources (for exam-
operating electric heater).
Do not pierce or burn.
Be aware that refrigerants may not contain an odour.
Pipe-work shall be protected from physical damage.
The installation of pipe-work shall be kept to a
minimum.
Compliance with national gas regulations shall be
observed.
Keep any required ventilation openings clear of
obstruction.
When opening or closing the valve below freezing
temperatures, refrigerant may spurt out from the
gap between the valve stem and the valve body,
resulting in injuries.
In Australia, only technicians that possess the ap-
local wiring standards. It is recommended to run a
dedicated circuit wherever.
-
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Summary of Contents for Mitsubishi Electric MSY-GY90VFD
- Page 1 REFRIGERANT Scale INSTALLATION MANUAL 1. Before Installation Meanings of symbols displayed on indoor unit and/or outdoor unit Warning 1-1. The Following Should Always Be Observed For Safety • Warning Do not install the unit by yourself (user). (*) When plugging the power supply plug into the tional wiring regulations.
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Page 2: Selecting The Installation Location
Caution Please wear protective equipment when you Do not operate the air conditioner during interior Install an earth leakage breaker depending on the installation place. touch the base of the outdoor unit. Perform the drainage/piping work securely ac- Do not install the outdoor unit where small animals cording to the installation manual. -
Page 3: Installation Diagram
1-4. Installation Diagram Accessories Parts to be provided at your site Note: Putty (Black) (4) (C) Note: Warning Outdoor unit installation Air inlet Important notes • • •... -
Page 4: Indoor Unit Installation
2. Indoor Unit Installation 2-1. Fixing Of Installation Plate 2-4. Pipe Forming And Drain Piping Pipe forming 2-2. Wall Hole Drilling Wall side Drain Piping Wall Wall Align the Insert scale with Insert securely Accumulated drain water At least in water Water Water Water... - Page 5 2. Indoor Unit Installation Left or left-rear piping Note: Power supply cord (J) • Others Earth wire 1 2 3 C Wire saddle Power supply wire (A) cord (J) Caution...
- Page 6 Indoor unit connection Burr Inside is shin- Flare nut Internal thread side Flare nut A (mm) Wing nut (mm) (mm) N•m Outdoor unit connection Warning When installing the unit, securely connect the refrigerant pipes before starting the compressor.
- Page 7 4-1. Evacuation Procedures and Leak Test Pressure gauge •cm) Caution: To the user 4-4. Explanation to the User Warning risks before opening the stop valves.
- Page 8 Push Warning When the refrigeration circuit has a leak, do not execute pump down with the compressor. When pumping down the refrigerant, stop the compressor before disconnecting the refrigerant pipes. The compressor may burst if air etc. get into it. 6.