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Use a shielded cable for the cable connection.
Twist out the end of the shielded part of the cable, crimp it with a round terminal, and connect it to
(Functional earthing) screw.
After crimping it with a round terminal, wrap it with insulating tape so there are no spaces and adjust it so the shielded part does not
come into contact with any live parts.
Crimp the round
terminal
Wrap it well with insulating tape
so there are no spaces.
Shielded part
CAUTION
Be sure that the shielded part of the cable does not come into contact with the terminal block or any live parts.
Failure to do so may lead to electric shock or fire.
When connected to the forced stop input
With the Forced Stop input, it is possible to override air conditioning operations to force a stop when signals are received from fire
alarms, etc.
Connect the wire (2-wire) to points 1 and 2 on the left side of
the terminal block.
The shielded part of the cable is connected with
(Functional
earthing) at the bottom of the terminal block.
Secure the wire with the cord clamp located on the lower part of
the terminal block.
When connecting the demand controller input
It is possible to choose various demand levels.
Refer to the table shown on the right.
Terminal No. for
demand section
Description
DRM3
Approx. 75% of rated power input
DRM2
Approx. 50% of rated power input
DRM1
Compressor off
Connect the wire (4-wire) to the Demand section (DRM1,
DRM2, DRM3, C) on the terminal block.
The shielded part of the cable is connected with
(Functional
earthing) at the bottom of the terminal block.
Secure the wire with the cord clamp located on the lower part of
the terminal block.
Fire alarm
Terminal block
Relay contact point: No voltage relay
Current input is DC 24 V 2 mA
Use a very small electric current contact
point for the relay.
DRM1 DRM2 DRM3 C
Terminal block
DRED (Demand controller)
Relay contact point: No voltage relay
Current input is DC 24 V 10 mA
Use a very small electric current contact point for the relay.
DRM1 DRM2 DRM3 C
Demand
(Functional earthing)
(Functional earthing)
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