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Filling
Fill the water heater as follows:
1. Open a hot water tap in the system.
2. Fill the hot water heater through the cold water
connection (XL3).
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).
VPD 150, 300
Electrical installation
NOTE
Electrical installation and service must be carried
out under the supervision of a qualified electri-
cian, and in accordance with applicable electrical
safety regulations.
VPD can be supplemented with up to two hot water
sensors, one for display and one for control. The display
sensor is positioned in the submerged tube for the dis-
play sensor (UA1) and the control sensor is positioned
in the submerged tube for the control sensor UA2. In
cases where it is only possible to connect one sensor, use
the submerged tube for the control sensor (UA2).
Use the sensors provided with the heat pump (or other
heat source). When no heat sensors have been provided
these must be ordered from the manufacturer of the
heat source.
Chapter 3 |
For the Installer
11
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