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(5) Example of unit installation
[Fig. IV. 3.(5).1]
(A)
(A)
(D)
(C)
(B)
(E)
(F)
(E)
(B)
(C) (G)
(G)
(A) Close valve
(B) Water inlet
(C) Water outletav
(D) Refrigerant piping
(E) Y-type strainer
(F) Drain pipe
(G) Expansion joint
(6) Insulation installation
The surface temperature of the water pipe would be very high, depending on the set temperature. Insulate the pipe
to prevent burns. When operating PWFY-EP100VM-E1/E2-AU with cold water, insulate the water pipe to prevent
condensation.
Wrap insulation material around water pipes as shown in [Fig. IV. 3.(6).1].
•
Any heat source piping.
•
Indoor piping in cold-weather regions where frozen pipes are a problem.
•
When air coming from the outside causes condensation to form on piping.
•
Any drainage piping.
[Fig. IV. 3.(6).1]
(A) Heat insulation material (accessory)
(B) Inject with caulking material
(A)
(B)
(7) Flow switch installation
<Caution>
When installing the unit, be sure to install the supplied flow switch on the water outlet side of the unit and connect
the wire to IN1 of TB142A on the unit.
If the flow switch is not installed, the unit will emit the error signal (2100: Interlock error) and not operate.
* A short-circuit wire is supplied, but it is only for test run.
