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9
10
11
12 13
Fig. 6.24
For the connection of the zone valve use the
terminals from the auxiliary card N (common
neutral), L (NO) line 230V ~ (valve opens
heating system), L (NC) line 230V ~ (valve
closes heating system) Fig. 6.25.
Zone
valve
L (NO)
V
L (NC)
Fig. 6.25
To remotely connect utilise the terminals in-
dicated in Fig. 6.30.
- 52 -
INSTALLATION
17
16
15
14
Auxiliary card
terminal board
N
6.11 External frost protection
• Connect the frost thermostat between ter-
minals 1 and 2 as shown in Fig. 6.26 or
Fig. 6.27.
Do not connect live wires to terminals to
which the frost thermostat must be con-
nected.
Frost Thermostat
(230V rating)
T
T
Fig. 6.26
Frost thermostat
(230V rating)
T
T
Fig. 6.27
Room thermostat
(230V rating)
N
L
3
2
1
Room
thermostat
with anticipating
resistor
(230V rating)
N
L
3
2
1
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