25
3. installation
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).
N
OTE
: W
HEN
CONNECTING
THE
BOILER
TO
EXTERNAL
CONTROLS
,
DO
NOT
RUN
240V
CABLES
AND
CABLES
FOR
SWITCHING
CIRCUITS
(
WHICH
ARE
LOW
VOLTAGE
)
TOGETHER
,
USE
SEPERATE
CABLES
TO
PREVENT
INDUCED
VOLTAGE
ON
THE
LOW
VOLTAGE
CIRCUITS
.
Connector SE on PCB
Outdoor Sensor
Connector TA1 on PCB
(low voltage switching)
Connector TA1 on PCB
(low voltage switching)
Connector TA1 on PCB
(low voltage switching)
Fig. 3.30
Fig. 3.31
Connector SE on appliance connector block
Summary of Contents for EGIS HE 24
Page 63: ......
