6 720 809 134 (2013/09)
Compress 3000 DW FII
Installation | 13
▶ Determine the nominal diameter of the room's water
installation. Please note the current water pressure and the
expected pressure loss.
▶ Carry out the water connection in accordance with the
applicable regulations. Please observe the local regulations
on DHW installations.
▶ The water pipes can be rigid or flexible. To avoid corrosion,
take into account the behaviour of the materials used in the
pipe system and the connections.
To prevent heat loss and to ensure maximum appliance
performance:
▶ Thermally isolate the water connections.
Safety valve
1)
▶ Fit the safety valve to the water inlet of the appliance.
5.5 Internal indirect coil connection
2)
The appliance is equipped with an additional internal indirect
coil which enables the solar system or boiler to provide
support.
When the water temperature in the cylinder reaches 80 °C, the
control switches off the support system. This prevents damage
to the refrigerant circuit in the heat pump and stops the high
limit safety cut-out from being activated.
If the internal indirect coil is not used:
▶ Seal off the internal indirect coil's inlet and outlet apertures
with plugs.
To prevent faults occurring due to sudden
pressure fluctuations in the supply:
▶ Fit a non-return valve and a pressure
control valve to the appliance supply.
NOTICE:
Pipes can be damaged if treated
incorrectly.
▶ Do not allow pipes to become
contaminated during installation.
▶ If necessary, flush the pipes with water
prior to commissioning.
Prior to installation, thoroughly flush water
pipes as the water flow could be reduced by
contaminants and, in case of severe
contamination, be stopped completely.
▶ Fit a water filter to the water inlet.
NOTICE:
Corrosion damage to the cylinder's
connections!
If the connections are made from copper:
▶ Use an isolation fitting for the hydraulic
connection
1)
. This extends the service
life of the magnesium anode.
1) Accessory not included in standard delivery
1) Accessory not included in standard delivery
If the water inlet pressure is higher than
8 bar - 80% of the allowable maximum value
(10 bar) -, install a reducing valve. The safety
valve is activated when the water pressure
exceeds the upper limit (
Tab. 6, page 15),
allowing water to drain off. A tundish should
be provided for this purpose.
NEVER CLOSE OFF THE SAFETY VALVE
DRAIN.
Never install accessories between the safety
valve and the appliance water connection.
NOTICE:
The drain line from the safety valve must be
laid in a frost-free location. It must remain
open to the atmosphere and always be kept
in a sloped position.
2) HP270-2E1...model only
WARNING:
Risk of scalding!
Hot water can lead to severe scalding.
▶ Inform users of the danger of scalding and
always monitor the thermal disinfection
process. Install a thermostatic DHW
mixer.
Summary of Contents for Compress 3000 DW FI Series
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