8
(2)-5. How to connect the external sensor (PAC-SE40TSA)
to LCD remote controller.
This controller is set for using internal sensor.
If you need the external sensor, please consult your dealer and purchase
option external sensor. (PAC-SE40TSA)
And please change below method.
1. Remove the cover of LCD remote controller.
2. Connect the wire of external sensor to terminal as below.
3. Replace the shunt jumper from "INT" side to "EXT" side as below.
4. Check above connection. (Refer to PAC-SE40TSA Installation manual.)
5. Attach the cover of LCD remote controller.
Section A
Wiring of external sensor
Printed board
Wiring of
LCD remote controller
EXT SENSOR
COMP2
COMP1
4W V
ERROR
JH
INT / EXT
24VAC (L)
24VAC (N)
FAN HI
FAN LO
Shunt jumper
Shunt jumper
Replace JH (Shunt jumper) from
INT side to EXT side.
Detail section A
LCD remote controller inside
Wiring of LCD remote controller
Wiring external sensor
External sensor PAC-SE40TSA
Cover
(3) Switch box (Field supply)
In case of using switch box (field supply), please wires as shown in the
below.
Remove the panel on the right side (PRC-8,10,12) or the rear side
(PRC-15,20,24,32) of the unit and connect the units power supply wiring to
the proper terminals in the control box.
Connect the wires on the basis of the following wiring diagram.
If mistook the connection, the controller is damaged.
PRC-15,20,24
PRC-8,10,12
(4) Wiring example (For metal piping)
Table above is an example.
The selection of other capacities should be determined in accordance
with the relevant standards.
Over current
protection switch
PRC-8
Power
cable
14mm
2
Earth cable
PRC-10
PRC-12
PRC-15
14mm over
50A
2
14mm
14mm
2
2
14mm over
50A
2
14mm over
75A
2
38mm
2
22mm over
100A
2
50A
50A
75A
100A
PRC-20
PRC-24
PRC-32
38mm
38mm
2
2
22mm over
100A
2
22mm over
100A
2
60mm
2
30mm over
175A
2
100A
100A
175A
PRC-8
PRC-10
PRC-12
PRC-15
NV is a product of MITSUBISHI ELECTRIC.
Table above is an example. The selection of other capacities should
be determined in accordance with the relevant standards.
(5) Selecting earth leakage breaker (NV)
To select NF or NV instead of a combination of Class B fuse switch
use the following.
In the case of Class B fuse rated 15A.
Fuse
(class B)
50A
50A
75A
100A
Earth leakage breaker
(with over-load protection)
NV50-CP
30mA 0.1s or less
NV100-CP
100mA 0.1s or less
NV50-CP
30mA 0.1s or less
NV100-CP
100mA 0.1s or less
50A
50A
75A
100A
PRC-20
PRC-24
PRC-32
100A
100A
175A
NV100-CP
100mA 0.1s or less
NV100-CP
100mA 0.1s or less
NV225-CP
100mA 0.1s or less
100A
100A
175A
8. Before starting the trial run.
After having installed the unit, check that:
Phase protector is installed in PRC-8,10,15,20 due to scroll compressor.
But not installed in PRC-12,24,32,because reciprocating compressor are
installed.
Breaker
capacity
1. The unit is fixed securely.
2. The unit is installed properly.
3. The drain pipe is provided with a drain trap.
4. The electrical wiring has been connected correctly and the terminal
screws have been properly tightened.
5. The duct work has been performed correctly.
6. Before turning the unit on, measure the resistance between the
terminals of the electrical parts and ground with a 500V megger
and check that the value is at least 1.0M ohm.
If the measured value is below 1.0M ohm, do not operate the unit.
7. The unit is used phase protector (47).(In case of PRC-8,1015,20)
If wiring phase of power supply is mistaken, the unit does not run.
Please reconfirm and modify wiring phase.
8. Turn universal power supply at least 6 hours before getting test run
in order to current to crank heater.(In case of PRC-12,24,32)
If current-carrying hours are too short,it may result in a malfunction
of compressor.
9. Check that the fans are rotating in the proper direction.
10. Check to see whether there are refrigerant leakage, and slack power or
transmission cable.
11. Check the operation of high-pressure switch.
If the two lead wires of the outdoor unit fan motor are disconnected
from the contactor and cooling is performed, the high-pressure switch
should operate and stop the unit after 5 to 10 minutes.
Perform trial operation after completion above items.
Switch box
(Field supply)
CZ
FZ
GRAY
23WA
SW
TB2
1
4
GRAY
2
3
52F
CZ
FZ
GRAY TB2 1
GRAY
3
5
TCZ
4
TB2
6
23
WA1
23
WA2
SW
Switch box
(Field supply)
TB2
F2
(3.15A)
C03
1
C04
1
C03
1
SILVER
RED
F2
(3.15A)
C03
1
C04
1
C03
1
SILVER
RED
AC
24V
Tr
AC
24V
Tr
3
3
C03
3
3
C03
3
PRC-32
CZ
FZ
GRAY TB2 1
GRAY
3
5
TCZ2
4
TB2
6
23
WA1
23
WA2
SW
Switch box
(Field supply)
Symbol
SW
23WA
23WA1
23WA2
name
Switch(on)
Thermostar(room temp.)
Thermostar(Low room temp.)
Thermostar(High room temp.)
F2
(3.15A)
C03
1
C04
1
C03
1
SILVER
RED
AC
24V
Tr
3
3
C03
3
TCZ1
Power supply cords of appliances shall not be ligther than design 245
IEC or 227 IEC.
A switch with at least 3 mm contact separation in each pole shall be
provided by the Air conditioner installstion.
Note.
All electrical wiring must be comply with local electrical
authority regulations.
