Mitsubishi Heavy Industries SRK25GZ-L1 Handbook page 1061

(c) Individual flow divide controller (Same power supply with the indoor units)
Item
Supported model
HPFD1R-E
Note (1) Do not misconnect the central flow divide controller signal wire.
(2) Precaution in electric wiring.
(a) Use separate power supplies for the outdoor and indoor units respectiveliy (Standard specification)
(b) Signal wiring (for indoor and outdoor units)
Double-core cable with a diameter 0.75 to 2 mm
Never make the indoor and outdoor connecting signal line use "co-axial cable" or "strand" with the
power wiring for indoor and outdoor unit and other ower line.
(Never use a multiconductor wire together with power line. It may cause erroneous operation.)
Do not connect high voltage wires 220/240 V or 380/415 V to signal wires. as these wires are DC 5V. Signal wires
should be connected so that the terminal Nos. conform with each other for between outdoor and between indoor units.
However, they will work properly if different polarities are connected.
(Connect (A) and (A), (B)and (B).)
Do not strand or run the remote control cord with power line, electric line, etc.
The total length of the signal wires Should be 1000m or less.
Recommended signal wire list
No.
1 Vinyl cabtire round cord
2 Vinyl cabtire round cable
3 Control vinyl insulated, vinyl sheathed cable
4 Shielding wire
When No. 4 shielding wire is used, always ground the single wire side of the shielding wire . In addition, using the shielding
wire is helpful to prevent the incorrect connection between 5V DC and 220/240V or 380/415V AC because the
discrimination from the power supply wire is clear.
(3) Wiring system Diagram
Power source wire
[Individual flow divide controller accessory wire (2m)]
Individual flow divide controller accessory wire (2m)
Relay kit (Individual flow divide controller accessory)
Signal wire (between indoor units)
Signal wire [Relay kit accessory (2m)]
Power source (indoor unit side)
1-Phase 220/240V 50Hz
Power supply
(mm
1-phase
220/240V
50Hz
2
Name
Power source (outdoor unit side)
3-Phase 380/415V 50Hz
Earth leakage
breaker
Circult breaker
Circult breaker
Earth leakage
Indoor
breaker
Unit
1
Remote
controller
Power supply
wiring thickness
× number of wires)
2
2.0/2.0 × 2
should be used for the signal wires.
VCTF double-core 0.75 to 2 mm
VCT double-core 0.75 to 2 mm
CVV double-core 0.75 to 2 mm
MVVS double-core 0.75 to 2 mm
Outdoor Unit
Signal wire (between outdoor and indoor unit)
Earth
2 3 4 5
Remote controller wire
FDC-HKXR
Signal wire thickness
× number of wires)
(mm
2
2.0 × 2
Symbol
2
2
2
2
Individual flow divide controllor
6 7 8
1059