6 720 801 244 (2013/08)
Compress 3000 DW FO
8 | Appliance details
Defrosting
During heating, when the air temperature is between 3 °C and
10 °C, the unit will defrost automatically to make sure the
heating efficiency is retained (it will last 15 minutes).
The fan motor will continue running when the unit is being
defrosted.
Working condition
The appliance is designed to operate with best efficiency when
the air temperature is b3 °C and +40 °C. For the best
results please install the unit in an area with an environment
temperature of +3 °C to +40 °C.
Care should be taken to feed the unit only with potable water
(
section 4.8.1). Do not use untreated water from lakes,
rivers or groundwater!
Overheating protection
When the water temperature reaches 84 °C
±
4 °C the power to
the heating element will be cut off and will require a manual
reset.
Water temperature or pressure protection
The unit is supplied with a PTR valve for your safety (supplied
accessory). If the tank pressure reaches 1000kPa or the
temperature reaches 99 °C, the PTR valve will open
automatically to allow the pressure or temperature to decrease
to safe values.
The warranty can become void if relief valves or other safety
devices are tampered with or if the installation is not in
accordance with the instructions in this manual.
Mains Pressure
This water heater is designed for direct connection to mains
water supply. In case the mains supply pressure exceeds
800kPa, a pressure limiting valve must be installed
(
section 4.4.6). A minimum water supply pressure of
200kPa is required to assure the effective operation of this
water heater.
