3.3 Function
The hydraulic unit transfers the heat supplied by the outdoor unit to the heating circuit.
An internal circuit reversal in the outdoor unit allows the hydraulic unit to be used for
cooling.
Overview
1
Safety valve 3 bar
q
Domestic water feed pump
2
Quick action vent valve
w
Heating circuit pump
3
Condenser
e
Supply sensor
4
Expansion vessel 18 l
r
Schrader valve of 3/8" pipework (WWP L 15)
5
Remote control station WP-FS
t
Flushing device sludge separator
6
Pressure gauges
z
Hydraulic connections boiler (additional heat source)
7
Inlet and outlet tap
u
Sludge separator
8
Circuit board
i
Flow switch
9
Electrical connection
o
Electric heating (3 kW / 2 x 3 kW)
0
Condensate outlet
Installation and operating instruction
Hydraulic unit WWP L 7 ... L 15
3 Product description
83279602 • 1/2014-05 • La
11-59
