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Using three-phase power
If you are connecting the Supra Touch to a three-phase system, make sure to connect the control power and
the variable cooling equipment to the
same phase
. The control must be powered from the same phases that
supply the equipment. If the control and the variable stages are wired to different phases, the equipment will
operate erratically.
Connecting an alarm system
You can connect an alarm system to the alarm terminal on the Supra Touch. The alarm system can be a
siren, alarm panel, auto-dialer, or similar equipment. Read your
equipment’s’ installation guide for
information about the type of system:
normally open
or
normally closed
. Below are the descriptions for the
alarm terminal.
C / CC
: common connection
NC / CA
: closed on alarm
NO / OA
: open on alarm
For the alarm system to sound (or dial out) during an alarm condition, you must enable the alarms. For
more information, read
The ratings of the siren or alarm system must not exceed the ratings of the Supra Touch
’
alarm relay.
Alarm relay ratings
: 0.4 A at 125 VAC; 2 A at 30 VDC, resistive load
0.2 A at 125 VAC; 1 A at 30 VDC, inductive load
Correct three-phase wiring
Incorrect three-phase wiring
Summary of Contents for Supra Touch Series
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