Electrical hookup
Installation manual – System controller
25
3
3.5
EXTERNAL REQUESTS CONNECTION
Figure 3.9
Connection of optional external request signals (thermostats, thermostat timers, timers) to RVS21.826
A Grey connector X86 (bottom edge
of RVS21.826 board)
B
NO voltage-free contact (must be
SELV)
C1 Thermostat (with timer) for zone 1
(or circuit 1)
C2 Thermostat (with timer) for zone 2
(or circuit 2)
GX1 H3 M H1
1 X86
G+ M BSB
A
B
B
C1
C2
