ChannelPlus H11XL - H17 XL Series 2
Installation Instructions
ChannelPlus XL Single Channel Timeswitch offers
up to three programmed operating periods per day, with
independent Boost and Advance control. This model has a fully
graphical, back-lit display combined with simple menu driven
programming.
Installation and connection should only be carried out by a
suitably qualified person in accordance with the current
edition of the IET wiring regulations.
Warning: Isolate mains supply before commencing
installation.
Fitting the Backplate
Once the Backplate has been removed from the packaging
please ensure the timeswitch is re-sealed to prevent damage
from dust, debris etc.
The Backplate should be fitted with the wiring terminals located
at the top and in a position which allows the relevant clearances
around the timeswitch. (See diagram)
50 mm
100 mm
N L 1 2 3 4 5 6
50 mm
50 mm
Direct Wall Mounting
Offer the plate to the wall in the position where the timeswitch is
to be mounted, remembering that the Backplate fits to the right
hand end of the timeswitch.
Mark the fixing positions through the slots in the Backplate
(Fixing centres 60.3mm), drill and plug the wall, then secure the
plate in position. The slots in the Backplate will compensate for
any misalignment of the fixings.
2
Wiring Box Mounting
The Backplate may be fitted directly on to a single gang steel
flush wiring box complying with BS4662, using two M3.5
screws.
ChannelPlus timeswitches are suitable for mounting on a flat
surface only, they must not be positioned on a surface
mounted wall box or on unearthed metal surfaces.
Electrical Connections
All necessary electrical connections should now be made.
Flush wiring can enter from the rear through the aperture in
the Backplate. Surface wiring can only enter from beneath the
timeswitch and must be securely clamped.
The mains supply terminals are intended to be connected to
the supply by means of fixed wiring. The recommended cable
sizes are 1.0mm or 1.5mm.
ChannelPlus timeswitches are double insulated and do not
require an Earth connection but an Earth terminal is provided
on the Backplate for terminating any Earth connections.
Earth continuity must be maintained and all bare Earth
conductors must be sleeved. Ensure that no conductors are left
protruding outside the central space enclosed by the Backplate.
When used to control MAINS VOLTAGE SYSTEMS Terminals L
and 5 should be electrically linked by means of a suitable piece
of sleeved conductor. When used to control EXTRA LOW
VOLTAGE SYSTEMS these links MUST NOT be fitted.
2 2
3
Electrical Connections
Example circuit diagrams are shown on page 5 & 6. These
diagrams are schematic and should be used as a guide only.
Please ensure that all installations comply with the current IET
regulations.
INTERNAL WIRING DIAGRAM H11XL - H17XL
N L 1
N LE ON ON
MAINS
SUPPLY
For reasons of space and clarity the diagrams have been
simplified, for instance some Earth connections have been
omitted. Other control components shown in the diagrams i.e.
Valves, RoomStats etc. are general representations only.
Cylinder and Room Thermostat Key: C = Common CALL = Call for heat or
break on rise SAT = Satisfied on rise N = Neutral
4
2 3 4 5 6
TIMED OUTPUT
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