CHWS PRORAPID - Maintenance Instructions; General Instructions; Troubleshooting

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INSTALLATION MANUAL PRORAPID |
Maintenance Instructions
General Instructions
Read carefully the instructions contained
in this chapter as they provide important
indications on the use and maintenance
of the appliance. Before performing any
operation on the CHWS ProRapid DHW
generator, turn o the electric power supply
switch and close the water supply valve.
The use of any component which is
electrically supplied entails the close
observance of the following fundamental
rules:
• Always turn o the electric power
supply switch before touching any
electrical connection
• Do not touch the appliance with parts
of the body which are wet, damp or in
bare feet
• Do not pull the wiring
• Do not expose the appliance to
atmospheric conditions
Substitute parts or accessories of the
appliance with original spare parts only. Do
not leave the appliance on when not in use.
Always turn the water and electric supply
switches o.
Emptying The CHWS ProRapid
DHW Hot Water Generator
Remove the electric supply and close the
cold water supply and empty the CHWS
ProRapid DHW generator by opening the
valve at the bottom of the tank. In case a
vacuum circuit breaker was not inserted in
the sanitary water circuit, insure that a valve
is open at the top of the vessel to vent the
vessel and avoid a damaging vacuum.
Troubleshooting
In case the heat exchange is not heating
suciently, the cause can be:
• The boiler power is not sucient
• The circulation of heating water is
not sucient because of a faulty or
undersized pump
• The temperature of the heating water
entering the ProRapid Plate Heat
exchanger is too low
• The temperature of the sanitary water is
too low or the temperature is too high
• The ProRapid is overused in
comparison with its performance
• Calcium deposits or other deposits in
the heat exchanger
The above listed causes must be veried by
professionally qualied personnel.