ChannelPlus H37XL Series 2
Installation Instructions
Three Channel Programmer
1
ChannelPlus H37XL Series 2 - Three Channel Programmer -
Each channel offers up to three programmed operating periods
per day, seven days a week, with three independent Boost and
Advance control on Fully Pumped Systems. This model offers a
fully graphical, back-lit display combined with simple menu
driven programming.
It is also a suitable direct replacement for existing ChannelPlus
H37XL programmers, utilising existing wiring and backplate
connections.
INSTALLATION AND CONNECTION SHOULD ONLY BE CARRIED
OUT BY A SUITABLY QUALIFIED PERSON AND 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 programmer 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 programmer.
(See diagram)
50 mm
100 mm
N L 1 2 3 4 5 6
50 mm
50 mm
2
Direct Wall Mounting
Offer the plate to the wall in the position where the programmer is
to be mounted, remembering that the Backplate fits to the right
hand end of the programmer.
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.
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 series 2 programmers 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
programmer 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
2 2
3
Electrical Connections
ChannelPlus programmers are double insulated and do
not require an Earth connection but an Earth terminal is
provided on the Backplate for terminating any cable
Earth conductors.
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.
INTERNAL WIRING DIAGRAM H37XL SERIES 2
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