CHOICE PR2
2 Channel Programmer
Installation Instructions
Technical Data
Power Supply:
230V AC, 50Hz
Operating Temperature: 0°C to 35°C
Total Switch Rating:
230V AC, 6(2)A
Contact Type:
1B , Micro-Disconnection (Voltage Free)
Battery Type:
Lithium Cell CR2032
Enclosure Protection:
IP30
Plastics:
Thermoplastic, flame retardant
Insulation Class:
Double
Wiring:
For fixed wiring only
Backplate:
Industry standard
Dimensions:
140mm x 87mm x 37mm
Clock:
12 hour am/pm, 1 minute resolution
BST/GMT time change: Automatic
Clock Accuracy:
+/- 1 sec/day
Program Cycle:
24hr, 5/2day or 7day selectable.
Program On/offs per day: 2on/off, 3on/off selectable
Program Resolution:
10mins
Program Selection:
Auto, On all day, On constant, Off
Program Override:
+1,2 or 3Hr, Advance
Heating System:
Pumped, Gravity selectable
Complies with : EN60730-1, EN60730-2.7, EMC Directive 2004/108/EC,
LVD Directive 2006/95/EC
Fit & forget...
Pre-Installation Set Up
Before installing, set the bank of
4 DIP Switches on the back to
configure the unit according to the
chart below:
DIP Switches
Shown in Factory Default
Positions. (black = raised actuator of
switch)
PUMPED allows independent control of CH
and HW.
GRAVITY does not allow CH without HW
but can provide HW without CH.
24 Hr Runs same programme every day.
5/2 Day Allows different on/off times at
weekend.
7 Day Allows different on/off times every
day.
Installation Safety Notes
This unit must be installed by
a suitably qualified person in
accordance with the latest IEE
Wiring Regulations.
Isolate mains supply before
commencing installation. Please
read all installation instructions
before proceeding.
Ensure that the fixed wiring
connections to the mains supply
is via a fuse rated at not more
than 6 amps and a class ‘A’ switch
having a contact separation of
a minimum of 3mm in all poles.
The recommended cable sizes are
1.0mm
2
or 1.5mm
2
Fitting Back Plate –
Direct Wall Mounting
1.
Position the wall-plate
(terminals along top edge)
with 60mm (min) clearance to
its right, 25mm (min) above,
90mm (min) below. Ensure
that the supporting surface
will fully cover the back of the
programmer.
2. The ideal location would be
1.4M above floor level, easily
accessible, reasonably lit and
free from condensation or
temperature extremes.
3.
Offer the back plate to the
wall in the position where the
programmer is to be mounted
remembering that the back
plate fits to the left hand side
of the programmer. Mark the
fixing positions through the
slots in the backplate, drill and
plug wall, then secure back
plate in position using screws.
4.
All necessary electrical
connections should now be
made. Ensure that the wiring
to the wall-plate terminals
leads directly away from the
terminals and is completely
enclosed within the wall-plate
Fitting Back Plate –
Wiring Box Mounting
1. Fix the wall-plate to a flush
mounting single conduit box
type UA1 (BS4662) using
M3.5 x 14 screws. Take care to
ensure the opening is adequate
and will allow mounting of the
unit onto the base plate. The
use of glue, mastic, or other
sealants MUST NOT be used to
secure the unit to the wall.
2.
All necessary electrical
connections should now be
made. Ensure that the wiring
to the wall-plate terminals
leads directly away from the
terminals and is completely
enclosed within the wall-plate
aperture. Wire ends must be
stripped and screwed to the
terminals so that minimal bare
wire is showing.
aperture. Wire ends must be
stripped and screwed to the
terminals so that minimal bare
wire is showing.
If the unit is fitted to a metal
surface,
IT IS ESSENTIAL
that
the metal be earthed.
DO NOT
use a surface mounting
box.
No earth connection is required
as the product is double insulated
but ensure continuity of earth
throughout the system.
New Installations
Example circuit diagrams for typical
installations are shown below.
These diagrams are schematic and
should be used as a guide only.
Please ensure that all installations
comply with the current IEE
regulations.
For reasons of space and clarity not
every system has been included
and the diagrams have been
simplified, for instance some Earth
connections have been omitted.
Other control components shown
in the diagrams i.e. Valves,
