Advertisement
3.5.2 Room Thermostat / Remote Clock Connection
To connect a room thermostat, it is necessary to:
1. Open the control panel
2. Loosen the cable clamp using a screwdriver and insert the
wires leading from the room thermostat
3. Connect the wires to the terminals as indicated in the fi gure
below, removing the link
4. If a remote time clock is to be fi tted, using a volt free
switching time clock connect the switching wires from the
time clock following points 1 - 3 above
5. If using an external time clock and room thermostat, these
must be connected in series as shown in diagram C,
6. Ensure that they are well connected and not subject to
stress when the control panel is closed
3.5.3 Outdoor sensor connection
- Introduce the outdoor sensor wires
- Loosen the cable clamp using a screwdriver and insert the
wires leading from the outdoor sensor one at a time.
- Connect the wires to the terminals as indicated in the fi gure
below;
- Make sure that they are well connected and that they are
not subject to stress when the control panel lid is opened
or closed;
- Close the fl ap again, then replace the control panel cover
and the front casing.
- Change Parameter 421 from 1 to 3. (See page 36 for setting
the parameters when using the outdoor sensor).
Outdoor Sensor
Fig. 3.31
Connector SE on appliance connector block
Connector SE on PCB
N
:
W
OTE
HEN CONNECTING THE BOILER TO EXTERNAL CONTROLS
240V
NOT RUN
CABLES AND CABLES FOR SWITCHING CIRCUITS
(
WHICH ARE LOW VOLTAGE
PREVENT INDUCED VOLTAGE ON THE LOW VOLTAGE CIRCUITS
,
DO
)
,
TOGETHER
USE SEPERATE CABLES TO
.
Connector TA1 on PCB
Connector TA1 on PCB
(low voltage switching)
(low voltage switching)
3. installation
Connector TA1 on PCB
(low voltage switching)
Fig. 3.30
25
Advertisement
