4
VIILB102
© Danfoss A/S (Dept./Init.), 2014-05
WT-S
500
1000
Corrosion protection
stainless
stainless
Volume, hot water heater
litre
500
1000
Max. pressure, hot water heater
bar/MPa
10
10
Max. immersion heater length
mm
640
850
Height (excl. feet)
mm
1850
2295
Net weight
kg
63
95
Immersion heater, max. output
kW
9
2x9
Technical data
Filling
Fill the water heater as follows
1. Open a hot water tap in the system.
2. Open the shut-off valve on the incoming cold water. This valve should then be fully open during operation.
3. The hot water tap can only be shut off when the water heater is filled, which is when only water
comes out of the tap (initially an air-water mixture comes out of the tap).
Water temperature
Outgoing water temperature must not exceed applicable local and national regulations. At higher heater
temperatures a mixer valve can be installed to restrict the outgoing hot water temperature to a limit of 60
°
C.
The lower the temperature in the system, the less heat loss from lines and valves.
Safety valve
The safety valve must be inspected regularly.
Ease the safety valve lever slightly to release some water through the overflow pipe. This must be carried out at least 4 times
a year. It is quite normal for the safety valve to let out small amounts of water when the water tank is being charged.
•
If the valve does not work satisfactorily, it must be replaced.
•
If there is a risk of freezing the water heat must be drained.
•
In the event of malfunctions - contact the installer.
