Page 2
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.
E
EL
LE
EC
CT
TR
RIIC
CA
AL
L C
CO
ON
NN
NE
EC
CT
TIIO
ON
NS
S
C
CO
OM
MM
MIIS
SS
SIIO
ON
NIIN
NG
G T
TH
HE
E P
PR
RO
OG
GR
RA
AM
MM
ME
ER
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
RE
EA
AR
R V
VIIE
EW
W O
OF
F C
CH
HA
AN
NN
NE
EL
LP
PL
LU
US
S X
XL
L P
PR
RO
OG
GR
RA
AM
MM
ME
ER
R
N
NE
EW
W IIN
NS
ST
TA
AL
LL
LA
AT
TIIO
ON
NS
S
F
FIIT
TT
TIIN
NG
G T
TH
HE
E P
PR
RO
OG
GR
RA
AM
MM
ME
ER
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.
END VIEW OF CHANNELPLUS PROGRAMMER
1 - RETAINING SCREWS
2 - CONNECTOR BLADES
3 - PRODUCTION DATE LABEL
4 - POSITIONING LUGS
5 - RATINGS LABEL
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.
N
NO
OT
TE
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.
INTERNAL WIRING DIAGRAM H37XL Series 2
An Example circuit diagram is shown below. This diagrams is schematic and should be used as a guide
only.
P
Plle
ea
as
se
e e
en
ns
su
ur
re
e t
th
ha
at
t a
allll iin
ns
st
ta
alllla
at
tiio
on
ns
s c
co
om
mp
plly
y w
wiit
th
h t
th
he
e c
cu
ur
rr
re
en
nt
t IIE
EE
E r
re
eg
gu
ulla
at
tiio
on
ns
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
Cy
ylliin
nd
de
er
r a
an
nd
d R
Ro
oo
om
m T
Th
he
er
rm
mo
os
st
ta
at
t K
Ke
ey
y::
C
C =
= C
Co
om
mm
mo
on
n C
CA
AL
LL
L =
= C
Ca
allll f
fo
or
r h
he
ea
at
t o
or
r b
br
re
ea
ak
k o
on
n r
riis
se
e S
SA
AT
T =
= S
Sa
at
tiis
sf
fiie
ed
d o
on
n r
riis
se
e N
N =
= N
Ne
eu
ut
tr
ra
all
1
2
3
4
5
IIN
NIIT
TIIA
AL
L S
SE
ET
T-
-U
UP
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
TIIM
ME
E A
AN
ND
D D
DA
AT
TE
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
PR
RO
OG
GR
RA
AM
MM
ME
E T
TIIM
ME
ES
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
PL
LE
EA
AS
SE
E E
EN
NS
SU
UR
RE
E T
TH
HA
AT
T T
TH
HE
E U
US
SE
ER
R G
GU
UIID
DE
E IIS
S H
HA
AN
ND
DE
ED
D O
OV
VE
ER
R T
TO
O T
TH
HE
E E
EN
ND
D U
US
SE
ER
R..
Page 3
