Robur GAHP Line AR Series, Инструкция по установке, эксплуатации и обслуживанию

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GAHP-AR – Installation, start-up, use and maintenance manual
56
Edition: 2014-08
The diagram in Figure 21 below shows an example of connection between two appliance
and a single pump, the pump being controlled directly by the two appliances via an
interposed relay and SELV safety transformer. In this case, no matter if pump current
absorption is more or less than 4 amp.
The SELV transformer is necessary for the safety of operators:
When doing maintenance and a unit is shut off, these contacts could still remain fed.
Figure 21 - Example of pump/appliance electrical connection with 208-230 Vac pump, controlled directly by the
appliance through a relay and a SELV safety transformer
GAHP-AR WIRING
If any of the original wire as supplied with the unit must be replaced, this must be done
with thermoplastic 221°F wire, except ground, high temperature and pressure switch wires
392°F or equivalent.
Igniter and flame sensor wire have to be replaced with Robur spare parts. See Optionals
and Spare Parts, page 79.
Label all wires prior to disconnection when servicing the electric controls . Wiring
errors can cause improper and dangerous operation.