Wiring Specifications - Mitsubishi Electric Mr.SLIM PUHZ-RP1.6VHA Technical & Service Manual

9

WIRING SPECIFICATIONS

Indoor unit – Outdoor unit wiring for PUHZ-RP1.6-6VHA and PUHZ-RP1.6-6VHA
The cable shall not be lighter than design 245 IEC or 227 IEC.
The cable length may vary depending on the condition of installation, humidity or materials, etc.
Wire size
Cross section
(mm
of cable
Round
Flat
Flat
Round
1 : In case that cable with stripe of yellow and green is available.
2 : In the flat cables are connected as this picture, they can be used up to 30m.
S1 S2 S3
3 : In case of regular polarity connection (S1-S2-S3), wire size is 1.5mm
4 : In case of regular polarity connection (S1-S2-S3).
5 : Mentioned cable length is just a reference value.
It may be different depending on the condition of installation, humidity or materials, etc.
Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate
connections).
Intermediate connections can lead to communication errors if water enters the cables and causes
insufficient insulation to ground or a poor electrical contact at the intermediate connection point.
(If an intermediate connection is necessary, be sure to take measures to prevent water from entering
the cables.)
Number
2
)
of wires
2.5 3
2.5 3
1.5 4
2.5 4
(3C Flat cable 2)
Polarity
Clockwise : S1-S2-S3
Not applicable
(Because center wire has no cover finish)
From left to right : S1-Open-S2-S3
Clockwise : S1-S2-S3-Open
Connect S1 and S3 to the opposite angle
20
1
L(m) 5
applicable
2
.
(30)
1
Not
2
(18)
3
30
4