Sangamo PR2n Programmable Thermostat Installation Instructions

Sangamo PR2n Programmable Thermostat

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 the 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 the same program every day.
• 5/2 Day Allows different on/off times at the 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 are 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 1.5mm2 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.

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, flame retardant
• Insulation Class: Double
• Wiring: For fixed wiring only
• Backplate: Industry standard
• Dimensions: 140mm x 87mm x 37mm
• Clock: 12 hours 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/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 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

Fitting Back Plate – Direct Wall Mounting

1. Position the back plate (terminals along the top edge) with 100mm (min) clearance to its right, 25mm (min) above, 10mm (min) below, and left. 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 the left-hand side of the programmer. Mark the fixing positions through the slots in the backplate, drill and plug the wall, then secure the 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 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 the 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 simplified, for instance, some Earth connections have been omitted. Other control components are 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.

New Installations
Cylinder and Room Thermostat Key:
C=Common Call = Call for heat or break on rise SAT = Satisfield on rise N= Neutral

1. Gravity Hot Water with Pumped Heating.
2. Gravity Hot Water with Pumped Heating via RoomStat and CylinderStat
3. Gravity Hot Water with Pumped Heating via Roomstat and CylinderStat including frost protection via double pole Froststat
4. Gravity Hot Water with Pumped Heating via Roomstat, CylinderStat, and Two Port Zone Valves (with Changeover Auxiliary Switch) on the Hot Water circuit.
5. Fully Pumped Heating System using RoomStat, CylinderStat, and Three-Port Mid-Position Valve.
6. Fully Pumped Heating System using RoomStat and Two (2 Port) Spring Return Zone Valve with Auxiliary Switches
7. Fully Pumped Heating System using RoomStat, CylinderStat, and Two (2 Port) Motorised Valves with Auxiliary Switches

Existing Installations

1. Remove the old programmer from its back plate mounting loosening any securing screws as dictated by its design.
2. Check the compatibility of the existing back plate & wiring arrangement with that of the new programmer. See the online Programmer Compatibility Guide for directions.
3. Make all necessary changes to the back plate & wiring arrangement to suit the new programmer

Electrical Connections

Fitting The Programmer
Loosen the two retaining screws on the bottom of the back plate. Now fit 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 are located in the terminal slots in the back plate. Tighten the two screws to fix the unit securely.

Commissioning

Switch on the mains supply. Referring to the user guide:

1. Use the buttons to ensure correct product functionality.
2. et timing and program details in accordance with customer requirements.
3. Normally unit will be left with the channel in ‘Auto’ mode.
4. Leave these installation instructions with the customer for reference.
   In the interests of continuous product improvement, we reserve the right to alter designs, specifications, 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

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 products 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 they can help us to improve our services to you, our customer. Due to our policy of continuous product improvement and development, the specifications in this guide may be subject to change without prior notice.

• Sangamo Limited
• Industrial Estate, Port Glasgow,
• Renfrewshire, PA14 5XG
• Tel 01475 745131
• Fax: 01475 744567
• Email: enquiries@sangamo.co.uk
• Web: www.sangamo.co.uk

Reference

Download Manual:

Sangamo PR2n Programmable Thermostat Installation Instructions

Other Manual:

Sangamo PR2n Programmable Thermostat Product Specification Guide

Sangamo PR2n Programmable Thermostat User Instructions

Sangamo PR2n Programmable Thermostat Installation Instructions