Horstmann ChannelPlus H37XL Series 2 Installation Instructions page 2

E E L L E E C C T T R R I I C C A A L L C C O O N N N N E E C C T T I I O O N N S S
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
N N E E W W I I N N S S T T A A L L L L A A T T I I O O N N S S
An Example circuit diagram is shown below. This diagrams is schematic and should be used as a guide
only.
P P l l e e a a s s e e e e n n s s u u r r e e t t h h a a t t a a l l l l i i n n s s t t a a l l l l a a t t i i o o n n s s c c o o m m p p l l y y w w i i t t h h t t h h e e c c u u r r r r e e n n t t I I E E E E r r e e g g u u l l a a t t i i o o n n s s . .
For reasons of space and clarity the diagrams has 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. However the wiring detail can be applied to the corresponding models of
most manufacturers e.g. Horstmann, Honeywell, Danfoss Randall etc.
C C y y l l i i n n d d e e r r a a n n d d R R o o o o m m T T h h e e r r m m o o s s t t a a t t K K e e y y : :
C C = = C C o o m m m m o o n n C C A A L L L L = = C C a a l l l l f f o o r r h h e e a a t t o o r r b b r r e e a a k k o o n n r r i i s s e e
N N O O T T E E : : If the ChannelPlus H37XL Series 2 is being installed on an existing system additional equipment
such as an extra zone valve may have to be fitted in order to achieve full three channel control.
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S S A A T T = = S S a a t t i i s s f f i i e e d d o o n n r r i i s s e e N N = = N N e e u u t t r r a a l l
ChannelPlus H37XL Series 2
Controlling 3 x two port
spring return zone valves via
RoomStat and CylinderStat
giving independent control
of Hot water and two zones
of Heating.
C C O O M M M M I I S S S S I I O O N N I I N N G G T T H H E E P P R R O O G G R R A A M M M M E E R R
Ensure all dust and debris has been cleared away from the work area before removing the programmer
from its packaging.
All ChannelPlus XL controls are fitted with battery reserve which maintains programmed times in the
event of a mains power failure.
R R E E A A R R V V I I E E W W O O F F C C H H A A N N N N E E L L P P L L U U S S X X L L P P R R O O G G R R A A M M M M E E R R
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2
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F F I I T T T T I I N N G G T T H H E E P P R R O O G G R R A A M M M M E E R R
If surface wiring has been used, remove the knockout/insert from the bottom
of the programmer to accommodate it. Loosen the two 'captive' retaining
screws on the top of the unit. Now fit the programmer to the Backplate, line
the lugs on the programmer with the flanges on the Backplate.
Swing the top of the programmer into position ensuring that the
connection blades on the back of the unit locate into the terminal slots in the
backplate.
Tighten the two 'captive' retaining screws to fix the unit securely, then switch
on the mains supply.
I I N N I I T T I I A A L L S S E E T T - - U U P P
Once the mains power has been switched on the ChannelPlus H37XL Series 2's display will illuminate.
The programmer has a number of pre-programmed functions to assist the installation, which are
detailed below;
T T I I M M E E A A N N D D D D A A T T E E - - The programmer has been pre-set with the current time and date during manufacture.
No alteration should be required to the time and date, however if any modifiaction is required please
refer to the 'Adjusting Time and Date' section of the user guide.
P P R R O O G G R R A A M M M M E E T T I I M M E E S S - - The programmer has been pre-set with default heating and hot water times, these
can be altered to meet the user requirements, please refer to the 'Setting the Programme Times'
section of the user guide.
P P L L E E A A S S E E E E N N S S U U R R E E T T H H A A T T T T H H E E U U S S E E R R G G U U I I D D E E I I S S H H A A N N D D E E D D O O V V E E R R T T O O T T H H E E E E N N D D U U S S E E R R . .
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1 - RETAINING SCREWS
2 - CONNECTOR BLADES
3 - PRODUCTION DATE LABEL
4 - POSITIONING LUGS
5 - RATINGS LABEL
END VIEW OF CHANNELPLUS PROGRAMMER
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