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ARTC-SVX007A-EN
Operating Procedures
Operator Interface
Thermafit™ TACW modular water-cooled units are
complete chillers that can work on their own or work
collaboratively, in banks of up to 8 units.
Chiller Panels
There are two different electrical panels used in the TACW
chiller:
1. Power panel
2. Control panel
Power Panel
Every module requires its own dedicated power connected
to built-in disconnect. See Figure 5, p. 18. The power panel
contains all electrical components requiring greater than 24
Vdc or 24 Vac. including, but not limited to AC
transformers, AC to DC power supply, fusing, and the line
reactor.
Figure 5. Power panel
Control Panel
The control panel receives power from the power panel and
provides power to the control components in that module.
The Control Panel includes, but is not limited to, primary
and companion controllers, HMI, BMS interface, Ethernet
components for internal network, low-power fusing, and a
terminal strip for customer control wiring.
Figure 6. Control panel
11 x 2211 x 22
11 x 22
11 x 22
TERMINAL BLOCK
TURBOCOR
NETWORK
CARD
IB-G
TRANSFORMER
T-2
120V/24V
250VA
Panel-Mounted Disconnect Handle
Chiller systems are equipped with a panel-mounted
disconnect handle installed on the outside of the power
distribution panel. The disconnect handle must be turned to
the OFF position before the panel can be opened for
service. When the panel door is open, the power is
disengaged.
Controller and HMI
The Thermafit TACW chiller models use “Danfoss MCX
microprocessor controllers and Schneider 7” touchscreen
HMI to monitor and report critical operating parameters.
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