(2) LCD remote controller. (OPTION:PAC-204RC)
(2)-1. Outline and inside drawing
(2)-2. Installation
(1) Decide where you want to install the LCD remote controller (switch box)
In deciding, please observe the following precautions:
Do not install the LCD remote controller in locations, which are:
Exposed to direct sunlight.
Susceptible to humidity and moisture.
Near a source of heat.
Near machines emitting high-frequency waves.
(High-frequency welders, etc.)
Switch box for two units
Connecting wire (Length : below 20m size : 0.75mm
2
)
Lock nut, bushing
(2) Install the lower case on the switch box.
Caution :
Over-tightening the screws can cause
deformation and / or cracks on the lower case.
Install the LCD remote controller on a wall with flat surface.
Installation on an uneven surface can cause
cracks on the LCD and other failure.
Switch box for
two units
Connecting wire
Pan-head screws
with cross holes
When installing
on switch box
To remove the upper case, insert a screwdriver(-)
into one of the slots and slide it in the direction
of the arrow shown in the diagram on the right.
Caution :
Do not turn the screwdriver while it is inserted into the slot.
Doing so can result in damage to the slot.
Connect to terminal
(2)-4. Setting DIP switch
(2)-3. Wiring
Set the DIP switches on the basis of the below table.
1) Procure the following parts locally :
Caution : This controller is damaged if mistook the connection.
Factory pre setting
PRC setting
7
DIP Switch 1
DIP Switch 3
DIP Switch 4
Mode select
Heat pump
DIP Switch 2
Fan speed Hi / Lo (*1)
ON
Auto change over function (*2)
OFF
Auto start at Power failure (*3)
ON
OFF
ON
OFF
ON
OFF
Cooling only
Available
Not Available
Not Available Automatically
FUNCTION
(Not change)
(Not change)
(Not change)
Note.
Seal the wire lead-in hole completely with putty
TB1
DIP SW
TB2
1
ON
23
4
Controller board
Outline (Key cover open)
COMP2
COMP1
4W V
ERROR
24VAC(N)
24VAC(L)
FAN HI
FAN LO
EXT
SENSOR
JH
INT / EXT
Refer to (2)-4
Refer to (2)-3
Refer to (2)-5
*1: This function can not use at above models, because the fan speed of these models is constant.
*2: If need this function, please consult your local MITSUBISHI ELECTRIC SALES office for application advice on this function.
*3: This function can change by customer self.
If this function use, The unit will auto start at power supply come back after power failure.
Do not change DIP switch 2.
PRC-8,10,12
PRC-15,20,24
Snap the upper case into place.
Hook the two upper claws into their slots, and shut
the lower part as shown in the right diagram.
Caution :
Press the case until it snaps shut.
To use, remove the protective sheet on the operation section.
CZ
FZ
GRAY TB2
TB2
1
6
GRAY
3
TCZ
4
PAC-204RC
CZ
FZ
GRAY
F2
(3.15A)
AC
24V
AC
24V
Tr
Tr
TB2 1
4
GRAY
2
3
24V
A
C(N)
COMP1
FAN HI
24V
A
C(L)
PAC-204RC
24V
A
C(N)
COMP2
FAN HI
24V
A
C(L)
COMP1
24V
A
C(N)
COMP2
FAN HI
24V
A
C(L)
COMP1
52F
TB2
C03
1
C04
1
3
3
C03
1
C03
3
3
3
C03
3
SILVER
RED
F2
(3.15A)
C03
1
C04
1
C03
1
SILVER
RED
PRC-32
CZ TCZ1
FZ
GRAY TB2
TB2
1
6
GRAY
5
TCZ2
4
3
PAC-204RC
AC
24V
Tr
3
3
C03
3
F2
(3.15A)
C03
1
C04
1
C03
1
SILVER
RED
(*3)
(1) Connect the wires on the basis of the following wiring diagram.
(2) Connecting work is different each models.
(3) LCD remote controller cables must be installed away from the power
cables so that they are not influenced by electrical noise from the power
cables. (Do not place the LCD remote controller cables and power cables
in the same conduit.)
(4) The connector connection of the transformer is different depending on the
power-supply voltage used.Refer to the wiring diagram at the control box
cover.
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