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WIRING CONNECTION METHOD
b)
Fixing Method by Screw (M4) (Screws: Field-supplied)
4.
WIRING CONNECTION METHOD
Õ
ATTENTION:
-
Read and understand SAFETY SUMMARY of this manual before wiring work.
-
Do not perform wiring this work by a person expect certified ones.
4.1.
INSTALLATION OF WIRING
1. Regarding HARC70-CE1, transmission line
for water chillers and transmission line for
Upper system monitoring equipment are
required.
2. Wiring Method.
Nº
Equipment for
connecting
Specification of wiring
1
Power Source Line
for Water Chillers
AC220-240V 2mm
2
two cores
shield
2
Earth Cable
Follow local standards.
3
Upper Monitoring
Equipment
Follow the instructions by
the person who manages the
upper system equipment. (*2)
4
Transmission Line
for Water Chillers
1P-0.75mm
2
twisted pair
cable (*1)
(*1) The cable always use the Twist-Pair Cable.
Connection Cable: Field-supplied.
1. Open the both upper and lower
cover of HARC70-CE1 horizontally.
Procedure:
3. Close the both upper
and lower cover.
2. By using screw (M4 Screw, 2 Positions),
fix HARC70-CE1 on the wall.
HITACHI
CONTROL SYSTEM G/W
HARC70-CE1
p
Upper Monitoring
Equipment
r
AC220/240V
Power Source
q
s
Water Chiller Unit
Water Chiller Unit
