Operating instructions

72
?
Secondary circuit flow tempera-
ture sensor (alternative positions)
%
Cylinder temperature sensor
%a
Solar circuit return temperature
sensor
aS
Primary circuit flow temperature
(heat pump brine inlet)
aJ
Secondary circuit, return temper-
ature sensor
sG
Secondary pump
sH
Primary pump
kK
Compressor
lJ
Three-way diverter valve heating/
DHW
aYH
Connection at terminals:
1, 2 Hot gas temperature sensor
3, 4 Low pressure sensor
5, 6 Safety high pressure sensor
a:Dc
Cylinder primary pump
A
Primary circuit air vent valve
B
Condenser drain valve
C
Schrader high pressure valve
D
Primary pump drain valve
F
Drain valve on the secondary side
G
Pipe / position instantaneous
heating water heater
H
Schrader low pressure valve
K
Drain & fill valve, DHW cylinder
M
Non-return valve
Troubleshooting
Repairs
(cont.)
5441 603 GB