5
Pic.2 Front panel PSK.P4
NA
– superior device
Tin
– return temperature sensor socket
Tout
- supply temperature sensor socket
Q
– flow sensor socket
ZM
- I
2
C power module socket
IN
OUT
A
- heat exchanger indicator
B
- pump and flow indicator
C
- heating on and room thermostat indicator
D
- inlet temperature indicator
E
- outlet temperature indicator
F
- medium temperature setting indicator
G, H, I - measurement value indicators
J
- LCD display
K
- temperature of water in the heat exchanger indicator
symmetry error indication
L
- switches
