Contents
0020291544_01 Hydraulic Station Installation and maintenance instructions
19
11.5
Using check programmes.................................... 39
11.6
Checking the pre-charge pressure of the
expansion vessel ................................................. 39
11.7
Checking the high-pressure switch-off ................ 39
12
Draining .............................................................. 39
12.1
Draining the product's heating circuit................... 39
12.2
Draining the heating installation .......................... 40
13
Decommissioning.............................................. 40
13.1
Decommissioning the product ............................. 40
13.2
Recycling and disposal........................................ 40
14
Customer service............................................... 40
Appendix ............................................................................ 41
A
Functional diagram............................................ 41
B
Wiring diagram................................................... 42
C
Control PCB ....................................................... 43
D
Basic connection diagram for the energy
supply company lockout, shutdown via
connection S21 .................................................. 44
E
Basic connection diagram for the energy
supply company lockout, shutdown via
partition .............................................................. 45
F
Installer level overview...................................... 46
G
Status codes ...................................................... 50
H
Maintenance messages .................................... 52
I
Comfort protection mode.................................. 52
J
Fault codes......................................................... 53
K
5.4 kW back-up heater at 230 V and at
400 V ................................................................... 57
L
Inspection and maintenance work................... 58
M
Characteristic values for the internal
temperature sensors, hydraulic circuit ........... 58
N
Characteristic values for the VR10
internal temperature sensors, cylinder
temperature ........................................................ 58
O
Characteristic values for the VRC DCF
outdoor temperature sensor............................. 59
P
Technical data.................................................... 60
Index ................................................................................... 62
