iQe CP027 User manual

CP027
INSTALLATION INSTRUCTIONS
The CP027 two channel programmer offers up to three on/off
periods a day for hot water and heating with a hot water boost and
heating advance facility.
Installation and connection should only be carried out by a
suitable qualified person and in accordance with the edition of the
IEE wiring regulation.
Warning : Isolate mains supply before commencing installation.
1
Two Channel 7 Day Time Control

Fitting the backplate
Once the backplate has
been removed from the
p a c k a g i n g p l e a s e
ensure the programmer
is resealed to prevent
damage from dust and
debris.
The backplate should
be fitted with the wiring
terminals located at the top and In a position that allows a total
clearance at last 50mm around the unit.
Direct Wall mounting
Offer the backplate to the wall in the position where the
programmer is to be mounted, remembering that the backplate
fits to the left hand end of the control. Mark the fixing positions
through the slots on the backplate (fixing centres of 60.3mm), drill
and plug the wall, then secure the backplate position. The slots in
the backplate will compensate for any misalignments of the
fixing.
Wiring box mounting
The backplate may be fitted directly onto a single gang steel flush
wiring box complying with BS4662 using two M3.5 screws. The
CP027 is suitable for mounting on a flat surface only, they must
not be positioned on a surface mounted wall box or on unearthed
metal surfaces.
2
N L 1 2 3 4
100mm
50mm
50mm
50mm

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. Recommended cable sizes are 1.00 to 1.5 mm2.
The CP027 is double insulated and do not require earth
connection but an earth connection is provided on the backplate
for terminating cable earth connectors. Earth continuity must be
maintained and all bare earth connectors must be sleeved.
Ensure no earth conductors are left protruding outside the central
space enclosed by the backplate.
Internal wiring diagram - CP027
New Installations
Example circuit diagrams for some typical installations are
shown in the pages which follow. These diagrams are schematic
and should be used as a guide only.
Please ensure that all installations comply with current IEE
regulations.
NL1 2 34
OFF OFF ON ON
CHHW
HW CH
230V 50Hz
3

For reasons of space and clarity not every system has been
included and the diagrams have been simplified – for example
some Earth connections have been omitted.
Other control components shown in the diagrams, i.e valves,
Room stats etc are general representations only. However the
wiring detail can be applied to the corresponding models of most
manufacturers.
Cylinder and Room Thermostat key;
C= Common; CALL = Call for heat or break on rise; SAT =
satisfied on rise; N = neutral.
4
NL1 2 34
PUMP
NL
BOILER
NL
MAINS
SUPPLY
E
N
L
1.Gravity Hot water with pumped heating

NL1 2 34
PUMP
NL
BOILER
NL
MAINS
SUPPLY
E
N
L
ROOM
STAT
SATCALL
SAT
CALL
CYL
STAT
C CN
2. Gravity Hot water with pumped heating via room stat and cylinder stat
5
BOILER
N
L
W
BL
0
GR
BR
NL1 2 34
PUMP
NL
MAINS
SUPPLY
E
N
L
ROOM
STAT
CALL
SAT
CALL
CYL
STAT
C CN
SAT
ZONE VALVE
3. Gravity Hot water with pumped heating via room stat, cylinder stat and two port zone
valve( with changeover auxiliary switch) on hot water circuit.

NL1 2 34
PUMP
&
BOILER
LN
MAINS
SUPPLY
E
N
L
SAT
CALL
CYL
STAT
C
ROOM
STAT
SATCALL
CN
CALL
W
BL
0
GR
4. Fully pumped heating system using Room stat, Cylinder stat and three port mid
position valve.
6
NL1 2 34
PUMP
&
BOILER
L
N
MAINS
SUPPLY
E
N
L
SAT
CALL
CYL
STAT
C
ROOM
STAT
SATCALL
CN
FROST
STAT
IF
FITTED
CALL
C
ZONE
VALVE
ZONE
VALVE
5. Fully pumped system using room stat and two(2 Port) spring return zone valves with
auxiliary switches.

NL1 2 34
PUMP
&
BOILER
L
N
MAINS
SUPPLY
E
N
L
SAT
CALL
CYL
STAT
C
ROOM
STAT
SATCALL
CN
ZONE
VALVE
ZONE
VALVE
6. Fully pumped system using room stat and two (2 Port) fully motorised valves with
auxiliary switches.
7

Commissioning the programmer
Ensure all dust and debris has been cleared away from the work
area before removing the programmer from its packaging.
The CP027 programmer is suitable for GRAVITY HOT WATER
and FULLY PUMPED systems.
On a FULLY PUMPED or CONTROLLED system it is possible to
programme independent time settings for hot water and heating.
On GRAVITY or PARTIALLY CONTROLLED systems the hot
water and heating allow a common time setting. It is not usually
possible to have heating without hot water. Correct control of
each type of system is ensured by a CIRCUIT LINK located on
the rear of a programmer.
If the programmer is to control a gravity hot water system this link
should be removed by simply pulling it out of the back of the
programmer. When used to control a fully pumped system the
link must remain in situ.
Rear view of CP027 programmer
1. RATINGS LABEL
2. BATTERY
3. CONNECTOR PINS
4. PRODUCTION DATE LABEL
5. CIRCUIT LINK
8
1
2
3
4
5
+
PULL TO REMOVE

End view of CP027
programmer
Battery Reserve
The battery must be commissioned prior to fitting the control to
the backplate. This is achieved by the means of a commissioning
strip at the back of the programmer control and re-insert the
battery; the reserve is now activated. When the programmer is
running the battery reserve clock display will disappear. This is to
prolong the life of the battery.
Fitting the programmer
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
bottom of the backplate. Now fit the
programmer to the backplate, ensuring the
lugs on the backplate engage with the
control.
Swing the bottom of the control into
position ensuring that the connection pins
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.
On completion of the installation please reset the programmer-
detailed below
9

General information
Before handing over the installation to the user, always ensure
that the system responds correctly on all control programmes
and that other electrically operated equipment and controls are
correctly adjusted. Explain how to operate the controls and hand
over the users operating instructions to the user.
10
SET
SELECT
Resetting the programmer
On the CP027 press the SET and SELECT buttons together. Then
release the buttons and the programmer will return to preset factory
settings.
The preset factory settings are illustrated on page 6 of the USER
GUIDE.
The unit can now be programmed to suit the user's requirements.
Please refer to the User Guide provided.