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Before installation, flush all water pipes thoroughly
to ensure no foreign material in that. Be careful
not to flush any foreign material into plate heat
exchanger;
It is necessary to set a water flow switch on heat
exchanger water outlet to realize stop protection.
Water flow switch should be connected to terminal
TB3 on PCB with shielded cable. Adjust setting
value of switch properly according to rated water
flow;
There must be extra bracer but not just unit to
support pipe and pipe joint;
Connection pipe and pipe joint on heat exchanger
should be removed easily to make operation and
clean work more convenient;
It is necessary to install sluice valves on water
inlet and outlet of unit to cut off the water flow in
heat exchanger, so that there is no impact on the
usage of other units during maintenance work;
Heat exchanger and connection pipe should be
connected with flexible joint in order to lower
vibration spread and avoid piping crack;
For easy inspection, thermometers and pressure
gauges should be settled on water inlet and outlet.
(Units are not equipped with thermometer and
pressure gauge);
Drainage joints should be set on lower points in
water system, so as to discharge water in
evaporator and system thoroughly. All higher
points should be installed with air exhaust valve
in order to exhaust air in pipe. No need to insulate
air exhaust valve and drainage joint for easy
maintenance;
Insulate all water pipes that have possibility to be
iced up. Water pipe can be packed together with
an auxiliary heater band in order to avoid frost
crack. The heater power source should be
equipped with individual fuse;
The maximum water operating pressure is
2.0MPa. The minmum water operating pressure
is 0.1MPa.
Terminals of water flow switch should be placed
in proper position for easy wiring;
The direction arrow marked on water flow switch
should be parallel to the direction of water flow,
target paddle should be perpendicular to
direction of water flow;
Water flow switch must be installed in straight
pipe-line and at least 5 times as long as pipe
diameter for straight pipes should be retained
on two terminals of water flow switch;
It can be fixed in horizontal pipe-line or vertical
pipe in which water flows upward, but not vertical
pipe in which water flows downward;
It needs to be interlocked with control system;
Target paddle needs to be selected and cut on site.
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