Operating instructions

22
Installation
To connect a room thermostat, it is necessary to:
1. - Open the control panel as indicated in SECTION 6.11.
2.- Remove the link “A” from the terminal bloc
k on the reverse
of the control panel.
3. - Insert the thermostat cable through the cable grommet and
fasten it by means of the cable-clamp provided.
4. - Connect the ther mostat wires to the ter minal block
(Diagram A).
5.- If a remote time cloc k is to be fitted, disconnect the integ ral
time clock
from the P.C.B.
6. - Using a volt-free switching time clock, connect the switching
wires from the time cloc k following points 1-4 abo ve
(Diagram B).
7. - If using an external time clock and room thermostat, these must
be connected in series
as points 1-7 above (Diagram C).
Note: Only a lo w voltage room thermostat capab le of v olt
free switching must be used. Factory fitted integral
wiring must not be disturbed when wiring e xternal
controls.
Important!!
DO
NOT install 240v wires and low voltage switching wires in
the same cab le/conduit, this may cause unwanted induced
voltages in the low voltage switching system.
6.13 Room Thermostat Connection
A
FIG. 6.22