Installation and operating instructions
Fresh water station WHI freshaqua 22
3 Product description
83514302 ▪ 1/2017-08 ▪ Ext. PAW
7-32
3
Product description
The fresh water station is a pre-assembled fitting group tested for leaks for transferring
heat between the buffer tank and the domestic water circuit.
It contains a preset controller as well as important fittings for operating the system:
Ball valves in the primary circuit
Piston valves in the secondary circuit
Safety valve in the secondary circuit
Pre-assembled controller
Temperature sensor on the cold water supply
Temperature sensor on the heating supply
Flow meter on the warm domestic water outlet
Lockable primary pump
Fill and drain valve for venting the heat exchanger and the pump
Connections
1
Secondary side: hot water outlet
2
Primary side: supply from buffer tank
3
Primary side: return to buffer tank
4
Secondary side: cold water inlet
Equipment
A
Piston valve (warm water outlet)
B
Fill and drain valve
C
Safety valve, 10 bars
(Only for protection of the station. Does not replace the
safety valve that must be installed on-site.)
D
Temperature sensor PT1000, rapid
E
Primary pump
F
Ball valve
G
Ball valve with check valve
H
Analogue flow rate temperature sensor VFS 2-40 l/min
J
Heat exchanger
K
Temperature sensor PT1000, rapid
L
Piston valve (cold water inlet)
