5
Fig 3.
2.2 Electrical connection
The Koolsmart Plus must be installed in accordance with the Country / regional requirements and
regulations. In any event the work must be carried out by a qualified electrician who will provide a certificate
of conformity upon completion of the work.
Undo the lower cover screws and remove the electrical access cover.
All electrical connections should be made into the relevant terminal block position, according to the labelled
positions.
Connection Explanation:
•
Terminal 1 = Incoming Live 220 to 240V
•
Terminal 2 = Incoming Neutral
•
Terminal 3 and 5 = Primary circuit pump output 220-240V
•
Terminal 5 and 6 = Alarm Output
– Volt free (activated when water temperature is higher by 2.7
degrees C above the set point0
•
Terminals 7 and 8 = Cooling Out
– Volt free switched output to control chiller, (2-Amp MAX if the
load is greater than 2-Amp an auxiliary contactor
must be
used)
•
Terminal 9 = Earth
•
Terminal 10 and 11 = Flow Switch
•
Terminals 12 and 13 = NTC Temperature sensing probe
•
Terminals 14, 15 and 16 = R5485 MODUBS Data Link
See wiring diagram on page 7.
