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1.
- Product instruction
1.1 Description of MCOCW
Functional
The MCOCW module is able to control a water coil used for both cooling and heating.
Together with the EXact2 control system, the module is able to regulate the output from
description
the water coil. If necessary, a circulation pump can be started up. In heating mode, the
MCOCW module also acts as frost protection for the water coil if the return water
temperature falls.
The MCOCW module can be used together with the following VEX/CX types:
The following simplified diagrams show how the MCOCW module controls the possible
connections.
Simplified
The MCOCW module controls a chiller from an external supplier.
diagram 1
Mixing loop
Constant flow in the primary circuit (Chiller) and in secondary circuit (Change-Over
Coil)
(Modbus Change Over Coil Water)
• VEX100
• VEX200
• VEX320-370
• CX340-350
• VEX310T-VEX350T
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