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Wire connection
REQUIREMENT
• Connect the wires matching the terminal numbers. Incorrect connection causes a trouble.
• Pass the wires through the bushing of wire connection holes of the hot water module.
• Keep a margin (Approx. 100 mm) on a wire to hang down the electrical control box at servicing or other purpose.
• The low-voltage circuit is provided for the remote controller. (Do not connect the high-voltage circuit)
• Remove the front panel of the hot water module by taking off the mounting screws (2 positions).
• Tighten the screws of the terminal block, and fix the wires with cord clamp attached to the electrical control box.
(Do not apply tension to the connecting section of the terminal block.)
• Mount the front panel of the hot water module without pinching wires.
Front
panel
Power supply wiring port
Control wiring port
External signal wiring port
R
(L)
S
(N)
10
10
30
60
Earth wire
Power supply wire
(Unit: mm)
COM S1 S2 S3 S4 S5
U1U2 A B
R
(L)
S
(N)
Side D (Space: 8.5 mm)
Side C (Space: 4 mm)
* Cable clamp can be attached on left side.
Wire
type
Specification
Cable clamping
position
Cabtyre
cable
3-core stranded
wire 2.5 mm²
Side D
Cabtyre
cable
4-core stranded
wire 1.5 mm²
Side C
Earth Screw
Cord clamp
(For power supply
wire)
Power supply wire
Remote controller wire
Control wire
Output signal function wire
Remote controller wiring
• Strip off approx. 9 mm the wire to be connected.
▼
Wiring diagram
Output signal function wiring
Connect the following output signals from the hot water module.
NOTE
Auxiliary relays (locally procured) must be connected to output signal function wirings to allow connection to the
hot water module output signal functions. The maximum current output signal, from each of the output signal
function wirings, is 16 mA. Please ensure the rated current of the relay coil is less than 16 mA to avoid damage to
the hot water module P.C. board.
Terminal
block No.
Function
Comments
COM
DC12V (COM)
Common for connector S2 ~ S5
S1
Defrosting output (COM-S1)
DC12V
Relay coil is less than 16mA.
S2
Line heater output (COM-S2)
DC12V
Relay coil is less than 16mA.
S3
-
-
S4
Heating thermostat ON output (COM-S4)
DC12V
Relay coil is less than 16mA.
S5
Pump output (COM-S5)
DC12V
Relay coil is less than 16mA.
A
B
A
B
Terminal block
Remote controller unit
Terminal block for
remote controller wiring
of hot water module
Remote controller wire
(Locally procured)
COM
S1
S2
S3
S4
S5
External
actuator
Output function wire
Hot water module
output signal
function terminal
block (CN60)
Locally procured
Relay
43-EN
44-EN
Содержание MMW-AP0271LQ-E
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