Sangamo CHOICEPR2N Installation Instructions

PR2n
143787

ALTERATION DETAIL

DATE

ISSUE

First issue

27/02/2014

A

6

5

A

B

4

Fit & forget...

Choice PR2n - 2 Channel Programmer

Installation Instructions

Pre-Installation Set Up

Before installing, set the bank of 4 DIP

Switches on the back to congure the unit
according to the chart below:

Pumped

24Hr

2 on/offs 3 on/offs

DIP Switches Shown in Factory

1 2

3

4

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 dierent on/o times at

weekend.

7 Day Allows dierent on/o times every
day.

Installation Safety Notes

This unit must be installed by a suitably
qualied 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 xed wiring connections to
the mains supply is via a fuse rated at not
more than 3 amps and a class ‘A’ switch

having a contact separation of a minimum

of 3mm in all poles. The recommended

cable sizes are 1.0mm2 or 1.5mm

If the unit is tted to a metal surface, IT IS
ESSENTIAL that the metal be earthed.
DO NOT use a surface mounting box.

Gravity

7 Day

5/2 Day

2

Technical Data

Power Supply: 230V AC, 50Hz
Operating Temperature: 0°C to 40°C
Switch Rating: 230V AC, 2(1)A per channel
Contact Type: 1B , Micro-Disconnection
Battery Type: Lithium Cell CR2032
Enclosure Protection: IP30

Plastics: Thermoplastic, ame retardant

Insulation Class: Double

Wiring: For xed wiring only
Backplate: Industry standard
Dimensions: 140mm x 87mm x 37mm

Clock: 12 hour am/pm, 1 minute resolution
Summer/Winter time change: Automatic

Clock Accuracy: +/- 1.5 sec/day
Program Cycle: 24hr, 5/2day or 7day selectable.
Program On/os per day: 2on/o, 3on/o selectable

Program Resolution: 10mins

Program Selection: Auto, On all day, On constant, O
Program Override: +1,2 or 3 Hr, Boost & Advance to next operation
Heating System: Pumped, Gravity selectable
Complies with : EN60730-1, EN60730-2.7,
EMC Directive 2004/108/EC,

LVD Directive 2006/95/EC

No earth connection is required as the
product is double insulated but ensure

continuity of earth throughout the system.

Fitting Back Plate –
Direct Wall Mounting

1. Position the back-plate (terminals

along top edge) with 100mm (min)

clearance to its right, 25mm (min)

above, 10mm (min) below and le.

Ensure that the supporting surface
will fully cover the back of the
programmer.

2. The ideal location would be 1.4M

above oor level, easily accessible,
reasonably lit and free from
condensation or temperature
extremes.

3. Oer the back plate to the wall in the
position where the programmer is to

be mounted remembering that the
back plate ts to the le hand side
of the programmer. Mark the xing

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 back-plate terminals

leads directly away from the terminals
and is completely enclosed within
the back-plate aperture. Wire ends
must be stripped and screwed to the

terminals so that minimal bare wire is
showing.

Fitting Back Plate –
Wiring Box Mounting

1. Fix the back-plate to a ush 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 back-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 back-plate terminals

leads directly away from the terminals
and is completely enclosed within
the back-plate aperture. Wire ends
must be stripped and screwed to the

terminals so that minimal bare wire is
showing.

New Installations

Example circuit diagrams for typical

installations are shown over. 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 simplied, for

instance 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.

Continued Over...

New Installations

Cylinder and Room Thermostat Key:

C=Common Call = Call for heat or break on rise SAT = Satiseld on rise N= Neutral

Electrical Connections

3A

Fitting The Programmer

Loosen the two retaining screws on the
bottom of the back plate.

Now t the programmer to the back

plate, ensuring the lugs of the back plate
engage with the slots on
the programmer.

Swing the bottom of the
programmer into position
ensuring the connection
pins on the back of the unit
locate into the terminal
slots in the back plate.

Existing Installations

1. Remove old programmer from its back plate mounting loosening any securing
screws as dictated by its design.

2. Check compatibility of existing back plate & wiring arrangement with that of the
new programmer. See online Programmer Compatibility Guide for direction.

3. Make all necessary changes to back plate & wiring arrangement to suit new
programmer

SERVICE AND WARRANTY

Your product is not user serviceable. PLEASE DO NOT TRY TO DISMANTLE THE UNIT.
This product is guaranteed by your supplier for 5 years from the date of manufacture. If it should become defective please contact your

installer or supplier for a replacement unit or visit www.sangamo.co.uk/returns

This product must meet Waste Electronic and Electrical Equipment Regulations (WEEE) for suitable environmental recycling, recovery and/
or disposal. End of life products should be handled in line with local regulations. Alternatively return end of life product to Sangamo for
correct disposal.

CUSTOMER CARE POLICY

As part of Sangamo’s continuous improvement program, the company operates a Customer Care policy. This means we welcome your
comments and complaints, as it can help us to improve our services to you, our customer.

Due to our policy of continuous product improvement and development, the specications in this guide may be subject to change without

prior notice.

Tighten the two screws to x the unit

securely.

Commisioning

Switch on mains supply. Referring to the

user guide:

1. Use the buttons to ensure correct
product functionality.

2. Set timing and programme details
in accordance with customer

requirements.

3. Normally unit will be le with channel

in ‘Auto’ mode.

4. Leave these installation instructions
with customer for reference.

In the interests of continuous product

improvement we reserve the right to alter

designs, specications and materials
without prior notice and cannot accept

liability for errors.

If you have a problem or require any
further information please contact our

technical team on:

01475 745131

Sangamo Limited

Industrial Estate, Port Glasgow,

Renfrewshire, PA14 5XG

Tel [phone]

Fax: [phone]

Email: [e-mail]

Web: www.sangamo.co.uk

143793 Issue C

WEE/JH0069TY