Advertisement
5. Electrical work
5.2. Field electrical wiring
O u t d o o r u n i t m o d e l
O u t d o o r u n i t p o w e r s u
p p l y
Outdoor unit input capacity Main switch (Breaker)
O u t d o o r u n i t p o w e r s u
p p l y
I n d o o r u n i t - O u t d o o r u n i t
I n d o o r u n i t - O u t d o o r u n i t e a r t h
Re m o t e c o
n t r o l l e r - I n d o o r u n i t
Outdoor unit L-N (single)
Outdoor unit L1-N, L2-N, L3-N (3 phase)
I n d o o r u n i t - O u t d o o r u n i t S1- S2
I n d o o r u n i t - O u t d o o r u n i t S2- S3
Re m o t e c o
n t r o l l e r - I n d o o r u n i t
*1. A breaker with at least 3.0 mm contact separation in each poles shall be provided. Use earth leakage breaker (NV).
M a k e
s u
r e t h a t t h e c u
r r e n t l e a k a
g e b r e a k e
A l w a y s
u s e
a c u
r r e n t l e a k a
g e b r e a k e
r t h a t i s c o
T h e u s e
o f a n i n a d e q u a t e b r e a k e
r c a
n c a
* 2. M a x .
4 5 m
I f 2. 5 m m ² u s e
d , M a x .
5 0 m
I f 2. 5 m m ² u s e
d a n d S3 s e
p a r a t e d , M a x .
* 3. T h e 10 m
w i r e i s a t t a c h
e d i n t h e r e m o t e c o
*4. The figures are NOT always against the ground.
S3 t e r m i n a l h a s 24 V D C a g a i n s t
S2 t e r m i n a l . H o w e v e
* 5 . I n m u l t i - p h a s e
a p p l i a n c e
s ,
t h e c o
l o u r o f t h e n e u t r a l c o
Notes: 1. Wiring size must comply with the applicable local and national codes.
2. Power supply cables and the cables between Interface unit/Flow temp. controller and outdoor unit shall not be lighter than polychloroprene sheathed
flexible cables. (Design 60245 IEC 57)
3. Be sure to connect the cables between Interface unit/Flow temp. controller and outdoor unit directly to the units (no intermediate connections are al-
lowed).
Intermediate connections may result in communication errors. If water enters at the intermediate connection point, it may cause insufficient insulation
to ground or a poor electrical contact.
(If an intermediate connection is necessary, be sure to take measures to prevent water from entering the cables.)
4. Install an earth longer than other cables.
5. Do not construct a system with a power supply that is turned ON and OFF frequently.
6. Use self-extinguishing distribution cables for power supply wiring.
7. Properly route wiring so as not to contact the sheet metal edge or a screw tip.
Warning:
• In case of A-control wiring, there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation between
power line and communication signal line. Therefore, please turn off the main power supply when servicing. And do not touch the S1, S2, S3 terminals when
the power is energized. If isolator should be used between indoor unit and outdoor unit, please use 3-pole type.
Never splice the power cable or the indoor-outdoor connection cable, otherwise it may result in a smoke, a fire or communication failure.
H W M 14 0 V
~/N (single), 50 Hz, 230 V
* 1
4 0 A
3 × M i n . 6
3 × 1.5 (Polar)
* 2
* 2
1 × M i n . 1. 5
2 × 0.3 (Non-polar)
* 3
* 4
230 V A C
* 4
230 V A C
* 4
24 V D C
* 4
12 V D C
r i s o n e c o
m p a t i b l e w i t h h i g h e r h a r m o n i c s .
m p a t i b l e w i t h h i g h e r h a r m o n i c s
a s t h i s u n i t i s e q u i p p e d w i t h a n i n v e
u s e
t h e i n c o
r r e c t
o p e r a t i o n o f i n v e
r t e r .
8 0 m
n t r o l l e r a c c e
s s o
r y .
r b e t w e e n S3 a n d S1, t h e s e
t e r m i n a l s a r e NO T e l e c t r i c a
n d u c t o r o f t h e s u
p p l y c o
r d , i f a n y ,
P o w e r s u
p p l y
I s o
l a t o r
S1
S2
O u t d o o r U n i t
S3
H W M 14 0 Y
3N~ (3 ph 4-wires), 50 Hz, 400 V
5 × M i n . 1. 5
3 × 1.5 (Polar)
1 × M i n . 1. 5
2 × 0.3 (Non-polar)
230 V A C
230 V A C
24 V D C
12 V D C
r t e r .
l l y i n s u
l a t e d b y t h e t r a n s f o r m e r o r o t h e r d e v i c e
s h
a l l b e b l u e .
3 p o l e s i s o
l a t o r
16 A
.
S1
I n d o o r U n i t
( I n t e r f a c e
u n i t /
S2
F l o w t e m p .
controller)
S3
e n
11
Advertisement
