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3.
INSTALLATION
3.1.
Hydraulic connection - units for duct installation
Cube devices in configuration with a water supplied heat exchanger in the roof section are equipped with fittings built into the
device. The fittings include a system with a three-way mixing valve, a circulation pump and a water exchanger’s heater anti-freeze
sensor. Such a system means that it is not required to take the pressure drops into account in the hydraulic systems inside the
device, as they are covered by the circulation pump.
During assembly of the installation it is absolutely necessary to immobilize the exchanger's connector pipes (counter).
Hydraulic system
A
Connection supplying water heat exchanger with heating medium
B
Water heat exchanger return connection
C
3-way valve with actuator 0-10V
D
Circulation pump (not applicable to the units with water heat exchanger in NWS/NWL supply module)
•
A water filter must be installed. It is required to protect the hydraulic system.
•
Make sure there is easy service access to the connection stub.
