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WIRING CONNECTION METHOD
4
6
b) Fixing Method by Screw (M4) (Screws: Field-supplied)
Procedure:
1. Open the both upper and lower
cover of HARC70-CE1 horizontally.
2. By using screw (M4 Screw, 2 Positions),
fix HARC70-CE1 on the wall.
4.
WIRING CONNECTION METHOD
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.
Upper Monitoring
AC220/240V
Equipment
Power Source
HARC70-CE1
Water Chiller Unit
3. Close the both upper
and lower cover.
Nº
1
2
3
4
(*1) The cable always use the Twist-Pair Cable.
Connection Cable: Field-supplied.
Water Chiller Unit
HITACHI CONTROL SYSTEM G/W
Equipment for
Specification of wiring
connecting
Power Source Line
AC220-240V 2mm
for Water Chillers
shield
Earth Cable
Follow local standards.
Follow the instructions by
Upper Monitoring
the person who manages the
Equipment
upper system equipment. (*2)
2
Transmission Line
1P-0.75mm
for Water Chillers
cable (*1)
2
two cores
twisted pair
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