Mounting And Connections - Johnson Controls SABROE WHC 2.1 Installation And Operating Manual

Mounting and connections

4. Mounting and connections
If the circulation system is sold with a heat pump or a chiller, the system will already be
mounted and connected on delivery.
If the system is sold with a compressor unit, it will not be fastened as the system should not be
mounted directly on the compressor or the compressor base frame because of vibrations.
Mounting
The circulation system is mounted on a plate bracket which can be fastened to the floor, wall or
other suitable place directly or by means of two angular brackets. See Fig. 3.
Fig. 3
Warning!
The circulation system must not be exposed to heavy vibrations. It is not recommended to
mount the circulation system directly on the compressor or compressor base frame.
Dismounting and lifting
The WHC system can be dismounted by unscrewing the four screws, (Fig. 2, pos. 30). The
system weighs approximately 17 kg and can be lifted in the oblong hole above the controller.
Cooling water supply
On the supply side, the circulation system can receive water from local waterworks, a cooling
tower or a brine circuit. The pump (Fig. 2, pos. 26) circulates the cooling media during standstill
and operation, but does not supply the system with cooling water (or brine) during operation.
There must be either a minimum 0.2 bar differential pressure between inlet and outlet (P >
inlet
P ) or a second supply pump must be installed to feed the system.
outlet
A supplementary supply pump, see Fig. 4, can be controlled by the WHC control box. The sup-
ply pump will be energized together with the solenoid valve, as cooling water is only needed in
cooling mode. The WHC control box is equipped with additional terminals and cable connec-
tions for the supplementary supply pump (max. 100W).
The WHC pump, Alpha 2 part no. 1524.1103, can also be used as supply pump.
Installation and operating manual - Sabroe WHC circulation system
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