– 1 –
This manual describes the installation of the central controller and wiring to the air conditioner. Refer to the installation manual of the
air conditioner. Carefully read item 1 Safety precautions to be observed without fail before installing the unit.
Cautions
Do not install the controller in a place where flammable
gas could leak.
If gas leaks and collects around the unit, it may cause a fire
or explosion.
Do not use this controller in an abnormal environment.
If the controller is used in a place where there is much oil
(including machine oil), steam or sulfide gas, the perform-
ance of the controller may deteriorate or parts may be dam-
aged.
Perform wiring so the tension is not applied.
If tension is applied, it may cause disconnection, heat gen-
eration or a fire.
Seal the wire lead-in port with putty to prevent the entry
of dew, water, insects, etc.
It may cause an electric or malfunction.
Do not wash this controller with water.
It may cause an electric shock or malfunction.
Do not install this controller in a place where the ambi-
ent temperature exceeds 40
°
C or drops below 0
°
C, also
do not install in a place where it is exposed to direct
sunlight.
It may cause a deformation or malfunction.
Do not install this controller in a place where steam is
generated such as bathroom, kitchen, etc.
Avoid placing where water condenses on the walls. It may
cause an electric shock or malfunction.
Do not install this controller in a place where an acid or
alkaline solution, special spray, etc. is used frequently.
It may cause an electric shock or malfunction.
Use specified wires corresponding to the current ca-
pacity for wiring.
Otherwise it may cause power leakage, heat generation or
fire.
Do not touch the PCB (Printed Circuit Board) with your
hand or a tool. Also do not get dirt on the PCB.
It may cause a fire or malfunction.
Do not touch the switches with wet hands.
It may cause an electric shock or malfunction.
Do not press the switches with sharp objects.
It may cause an electric shock or malfunction.
Do not connect an AC power source to the M-NET and
Power (DC12V) terminal blocks of this device.
It may cause a breakdown or fire.
Ask your dealer or technical representative to install.
If incorrect installation is done by a customer, it may cause
an electric shock, fire, etc.
Securely install in a place which can withstand the
weight of the controller.
If it is not enough, the unit may fall and cause an injury.
Securely connect the wiring using the specified cables
and fix them so that the stress from the cables is not
applied to the terminal connection sections.
If connection or fixing is not sure, it may cause heat genera-
tion, a fire, etc.
Never modify or repair by yourself.
If the controller is modified or a repair is not correct, it may
cause an electric shock, fire, etc.
Consult your dealer if repairs are necessary.
Securely install the controller according to the installa-
tion manual.
If installation is not correct, it may cause an electric shock,
fire, etc.
The electric work should be perform by authorized per-
sonal according to the installation manual.
Any lack of electric circuit or any deficiency caused by in-
stallation may result in an electric shock or fire.
Do not move and re-install the unit by yourself.
If installation is not correct, it may cause an electric shock,
fire, etc.
Ask your dealer or technical representative.
Warning
1
Safety precautions to be observed without fail
* Hazards and levels of danger that can occur due to incorrect handling are classified by the following symbols.
Warning
Incorrect handling can result in death, serious injury, etc.
Cautions
Incorrect handling can result in injury or damage to the building or its contents.
* After reading this manual, keep in a handy place. When removing or repairing the unit, give this manual to the installer. When the user
changes, also give to the new user.
Содержание G-50A
Страница 2: ......
