Mitsubishi PAC-SJ96MA-E Installation Manual

BH79N063H04
INSTALLATION MANUAL FOR A-M CONVERTER
PAC-SJ96MA-E

SAFETY PRECAUTIONS

Before starting installation, read the "Safety Precautions" described below.
The following precautions must be observed as it describes the serious matters for safety.
The safety precautions are described with the degree of danger.
WARNING When you handle wrong, it can lead to death or serious injury.
CAUTION
When you handle wrong, it can lead to injury or damage to building and furniture.
After installation, make test operation and confirm that it works properly, and explain the safety precautions, operation method, and
maintenance to your customers.
Tell your customers to keep this installation manual together with operation manual with them, and when they give or sell this machine to other
person put this installation manual and operation manual with it.
The installation must be done by dealer or qualified person.
If the customers do the installation by themselves and it is not
perfectly installed it can cause water leak, electric shock, or fire.
The installation must be done in accordance with this manual.
If the installation is not perfectly done, it can cause water leak,
electric shock, or fire.
Never try any modification.
For repair, ask your dealer.
If the machine is not modified or repaired completely, it can cause
water leak, electric shock, or fire.
Never move or reinstall the machine by the customers.
If the installation is not perfectly done, it can cause water leak,
electric shock, or fire. Ask your dealer or qualified person.
Before electric wiring
Install a circuit breaker depending upon the location.
Without a circuit breaker, it can cause electric shock.
Use standard wires which meet current capacity.
Otherwise, it can cause short-circuit, heat, or fire.
Before test operation
Turn the power on 12 hours or more before operation.
If you start operation as soon as the power on, it can cause failure.
Never turn the power off during season.
Never operate the machine without panel or guard off.
It can cause serious injury being caught by rotating part or burn or
electric shock by high voltage part.
Never operate the machine without air filter off.
It can cause failure by dust.

1.Parts List

No. Description Figure
M-NET board
(with insulation
1
sheets and
supports)
Plate
(For mounting
2
M-NET board)
3 Screw (M4×8)
Terminal block
4
(M-NET)
Terminal screw
5
(M3×20)
Label
6
WARNING
The wiring must be securely done by using proper cable. The wires
should be connected to the terminals not to have external force of
the cable.
Faulty connections can cause heat or fire.
The terminal cover (panel) of the unit must be installed securely.
Faulty installation can cause fire or electric shock by dust or water.
The electric installation must be done by qualified person in
accordance with this installation manual. Use the separate circuit
only for this machine and use rated voltage and circuit breaker.
If the electric circuit power is not sufficient or the wiring is not
properly done, it can cause electric shock or fire.
CAUTION
Put ground wire.
Never ground to gas pipe, water pipe, lightning conductor, or
telephone ground wire.
Faulty ground can cause electric shock.
Wires must not have tension.
It can cause snipping, heat, or fire.
CAUTION
Never operate the switches with your hand wet.
It can cause electric shock.
Never touch refrigerant pipes while the machine running.
The refrigerant pipes becomes high and low temperature while the
machine running. If you touch the pipes by hand, it can cause
chilblain or burn.
Never turn the power off as soon as the machine stops.
Wait for 5 minutes or more. It can cause water leak or failure.
Q'ty No. Description Figure
Lead wire
1
7
(5 wires)
length: 280mm (11 inch)
Lead wire
1
8
(3 wires)
length: 300mm (12 inch)
Lead wire
2
9
(2 wires)
length: 280mm (11 inch)
Ground wire
1 and screw
0
(M4×8)
1
1 Fastener
1
For models in which this component is used, see the separate sheet.
Attention for M-NET connection
Pay attention to the next points for wiring of shielded wires.
(1) Ground wire connection
The shielded wires of M-NET transmission should be
connected with the ground wire at any only one place
of the unit to be connected.
Bad example (Multiple ground of shielded wire)
Centralized Power Outdoor
supply unit
controller unit (*1)
NO NO
M-NET transmit wire
Good example (One spot ground of shielded wire)
Centralized Power Outdoor
controller supply unit unit (*1)
M-NET transmit wire
(*1) Refer to the appendix List of Models to check the applicable models.
(*2) In case that the outdoor unit is grounded, connect the ground wire supplied as accessory to the S terminal (secondary)
of M-NET terminal block and M-NET ground terminal inside of electrical parts box with using screws supplied.
Note: If the shield and earth are grounded in two or more locations, electrical circuit is generated through them, and a
potential difference is created because of the impedance difference between or among the ground locations.
This may cause noise in the shield. Ground at only one point, then no circuit is created and no noise gets in.
(2) Length of M-NET transmission line
The shielded wires of M-NET transmission should be
used below the maximum line length.
L1
Centralized
controller
Power supply
unit
(3) Using dual set point
1. To activate dual set point, make sure that all units and controllers in one group have dual set point function.
2. To change the temperature display setting of existing group from single to dual set point, make sure to restart the
whole system related.
3. When ME remote controller is included in same group in the case of 2, make sure to initialize* ME remote controller
before use.
1
(*Refer to the ME remote controller installation manual. <Service Menu.>)

2. Switch setting

Q'ty
Before installation
Set switch on M-NET board in advance before installing on the electrical parts box .
M-NET board
1
1
(1) M-NET address setting
1
The setting should be done by rotary switches SW11 and SW12 on M-NET board. (Factory settings are all Zero)
Make sure to set M-NET address within the range of 01 to 50.
When installing two or more outdoor units, do not use the same number more than once for M-NET address.
<Example>
1
M-NET address No. 1 2
each
SW 11
(Ones digit)
Switch
setting
2
SW 12
(Tens digit)
(2) Switch 1-8 setting
SW1-8
Selection
Turn the switch ON when MA remote controller or wireless
remote controller is connected to indoor unit.
M-NET board
SW1-8 ON
Centralized
controller
Turn the switch OFF when MA remote controller or wireless
remote controller is NOT connected to indoor unit.
M-NET board
Centralized SW1-8 OFF
controller
Note: SW1 3 is always ON
3
CAUTION
Outdoor unit digital LED display reads "Ed" "A7" error.
Centralized controller reads "0403" "6607" error.
Good example (One spot ground of shielded wire)
Outdoor Centralized Power
supply unit
unit (*1) controller
NO OK
M-NET transmit wire
(*2)
M-NET
terminal block
Outdoor
unit (*1)
OK (*2)
CAUTION
Outdoor unit digital LED display reads "Ed" "A7" error.
Centralized controller reads "0403" "6607" error.
M-NET
L2
Outdoor
unit
Indoor unit
Indoor unit Indoor unit
ME
L3
controller
Mr. SLIM
Outdoor
unit
Indoor unit
M-NET
Adapter
MA
Maximum power feeding length for
controller
the centralized control line:
L1
L2 + L3 [ 200 m (656 ft)
SW1
SW12
SW11
50
Function details
Function
<FUNCTION>
RC
Set the connection of MA-
OR
remote controller or
Indoor
unit
Outdoor wireless remote controller
MA
unit
to the indoor unit.
ON : exist (initial setting)
OFF : not exist
MA: MA remote controller
RC: Wireless remote controller
<NOTE>
In case of switch is ON,
transmission error between
M-NET board and
centralized controllers does
Indoor
not be detected, and
Outdoor unit
unit
M-NET board operates
continuously.
Outdoor Outdoor
unit (*1) unit (*1)
Ground wire
(accessory)
Transmit Shielded
wire wire
Indoor unit
M-NET transmission line
(Centralized control line)
M-NET transmission line
(Indoor control line)
A transmission line
MA remote controller line
[ 200 m (656 ft)
2
Initial Effective
setting timing
When
power
ON
supply
ON
4