Pipe installation
Pipe installation must be carried out in accordance with
current norms and directives.
The water heater must be fitted with the requisite valves,
such as a safety valve, shut-off valve, non-return valve
and vacuum valve (-Cu).
The water heater must be provided with a mixer valve,
which limits the temperature of outgoing hot water to
60 °C. If this valve is not fitted, some other measure must
be taken to prevent the risk of scalding.
Internal support bushes must be fitted when a plastic or
annealed copper pipe is used. An overflow pipe must be
routed from the safety valve to a suitable drain. The
overflow pipe must be the same size as the safety valve.
Route the overflow pipe from the safety valve, sloping
along its entire length and ensure that it is frost proof.
The mouth of the overflow pipe must be visible and not
placed close to electrical components.
The water heater is equipped with two outgoing docking
connections to allow docking of the hot water heater.
A drain valve can be fitted on the pipe line up to connec-
tion XL9 (use and adapter from G2” to the desired size).
Commissioning and adjusting
Filling
The water heater
The water heater is filled by first opening a hot water
tap in the system and then opening the shut-off valve
for incoming cold water. This valve must then be fully
open during operation. 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).
The climate system
When filling the climate system the double-jacketed
space must be vented by opening the air nipple.. The air
nipple may only be closed when water starts coming out
of the air hole.
Water capacity
T50 (minutes)*
NL number
Charge power
(kW)
118
2,75
8,5
84
3
10
68
3,75
13
53
4,25
15
* Tested with heat pump.
NL number According to DIN 4753
T50: Heating time from 10 to 50 °C
Vmax: Maximum hot water quantity at 50 °C in the water heater.
12 l/min gives 370 litres 40 °C mixed water. Incoming cold water
10 °C.
Pressure drop diagram
Pressure drop through coil for solar heating
Connection XL13 and XL14
0
0
340
480
730
980
1480
5
10
15
20
25
30
35
Tryckfall
(kPa)
Flöde
(l/h)
45
40
Pressure drop
(kPa)
Flow
(l/h)
25
VPAS 300/450 | GB
