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Moreover, should another zone controlled by
an ambient thermostat be present it is possi-
ble to regulate both zones with a different de-
livery temperature.
In order to achieve this setting it is necessary
to enter into the programming (load entry se-
quence), scroll the various parameters us-
ing keys 17 or 18 (Fig. 6.25) until the letters
P04 appear on the LCD display as well as the
value of the parameter, indicating the entry in
"parameter 04" (Fig. 6.24).
Fig. 6.24
Utilising keys 11 or 12 modify the value of the
parameter from 00 to 01 valid in order to differ-
entiate the delivery temperatures of the heat-
ing system.
By pressing key 14 confirmation of the insert-
ed value is obtained.
Press keys 17 or 18 to exit without changing
the value.
11
12
13
14 15
Fig. 6.25
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. 6.26.
INSTALLATION
Zone
valve
Fig. 6.26
To remotely connect utilise the terminals indi-
cated in Fig. 6.29.
6.11 External frost protection
• Connect the frost thermostat between termi-
nals 1 and 2 as shown in Fig. 6.27 or Fig.
6.28.
Do not connect live wires to terminals to
which the frost thermostat must be con-
18
nected.
Frost Thermostat
(230V rating)
17
T
16
Fig. 6.27
L (NO)
V
L (NC)
N
Room thermostat
(230V rating)
T
N
L
3
2
1
Auxiliary card
terminal board
- 61 -
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