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C-Stat 11-ZW | C-Stat 17-ZW
Installation Instructions
Wireless Programmable
Room Thermostat and ASR-ZW Receiver
Programmable room thermostats are widely recognised as one
of the best ways in which to control central heating. Horstmann
C-Stat programmable room thermostats have a large display
and intuitive user interface, making them easy to set up and use.
C-Stat uses a sophisticated time proportional integral (TPI)
algorithm for accurate temperature control and energy
efficiency. The C-Stat ZW is a wireless electronic battery
powered programmable room thermostat that uses
interoperable two-way RF mesh networking technology which
avoids the need for additional wiring or unsightly cable runs.
Installation and connection should only be carried out by a
suitable qualified person and in accordance with the current
edition of the IEE wiring regulations.
Warning: Isolate mains supply before commencing installation.
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Summary of Contents for Horstmann C-Stat 11-ZW
- Page 1 Room Thermostat and ASR-ZW Receiver Programmable room thermostats are widely recognised as one of the best ways in which to control central heating. Horstmann C-Stat programmable room thermostats have a large display and intuitive user interface, making them easy to set up and use.
- Page 2 Installing the ASR-ZW receiver The ASR-ZW receiver should be located as near as is practical to the boiler or zone valve to be controlled, as well as a convenient mains electricity supply. To remove the wall plate from the ASR-ZW undo the two retaining screws located in the underside, the wall plate should now be easily removed.
- Page 3 Electrical Connections WARNING: ISOLATE THE MAINS SUPPLY BEFORE COMMENCING INSTALLATION As the C-Stat is a wireless product with no electrical connections all electrical wiring will be made to the ASR-ZW receiver. All necessary electrical connections should now be made. Flush wiring can enter from the rear through the aperture in the backplate.
- Page 4 Example circuit diagrams for typical boiler installations are shown below. These diagrams are schematic and should be used for guidance only. Please ensure that all installations comply with the current IEE regulations and the boiler manufacturer's installation instructions. For reasons of space and clarity not every connection has been included and the diagrams have been simplified, for instance some earth connections have been omitted.
- Page 5 Programmer CENTRAL WATER HEATING ASR Receiver MAINS SUPPLY ROOM STAT STAT MAINS SUPPLY CALL CALL PUMP & BOILER C-Stat ASR Receiver controlling a secondary heating zone on a fully pumped system with existing programmer and two spring return valves with auxiliary switches Programmer CENTRAL WATER...
- Page 6 Programmer CENTRAL WATER HEATING MAINS ASR Receiver SUPPLY STAT CALL CALL PUMP & BOILER C-Stat ASR Receiver replacing a conventional room thermostat on a fully pumped system with existing programmer and two spring return valves with auxiliary switches...
- Page 7 TPI Temperature control software Thermostats using TPI (Time Proportional Integral) control algorithms will reduce the temperature swing that normally occurs when using traditional bellows or thermally operated thermostats. As a consequence, a TPI regulating thermostat will maintain the comfort level far more efficiently than any traditional thermostat.
- Page 8 Fitting the C-Stat Programmable Room Thermostat Before final installation it is advisable to commission the product and ensure that the Thermostat and Receiver are communicating satisfactorily. First install the 2 x AA batteries provided making sure that they are fitted correctly as indicated by the markings in the battery compartment on the front of the C- Stat.
- Page 9 Before fixing the wall plate in position check to see that the thermostat and receiver are still able to communicate satisfactorily by turning the thermostat temperature up and down to switch the ASR-ZW receiver on and off. Offer the plate to the wall in the position where the C-Stat is to be mounted and mark the fixing positions through the slots in the wall plate.
- Page 10 Pairing the C-Stat ZW programmable room thermostat with ASR-ZW receiver The C-Stat uses the latest Z-Wave wireless communication technology to give a reliable wireless link that should not suffer from interference from other nearby devices. The device comprises of a thermostat (C-Stat ZW) and its receiver (ASR- ZW).
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Page 11: Press Enter
Procedure A On the C-Stat programmable stat, Press ENTER twice Press '-' or '+' to select SETUP Press ENTER Press '-' or '+' to select SET UP Z-WAVE Press ENTER This will now show the sub menu available for the Z-Wave wireless communication settings Select INCLUDE NODE / RECEIVER Press ENTER... - Page 12 Procedure B On the C-Stat programmable stat, Press ENTER twice Press '-' or '+' to select SETUP Press ENTER Press '-' or '+' to select SET UP Z-WAVE Press ENTER Press '-' or '+' to select NETWORK RESET Press ENTER Press ENTER again to confirm and NETWORK RESET COMPLETE will appear on the display Press BACK to go back to SET UP Z-WAVE...
- Page 13 Installer Settings There are a number of 'Installer Settings' that should be set on installation. These can be found under the 'SET UP MENU' on page 15 of the user instructions. Clock Format AM/PM or 24 Hour clock display - Default setting AM/PM Daylight saving On or Off - Default setting ON for UK Market...
- Page 14 Resetting the C-Stat Electronic equipment can in some circumstances be affected by electrical interference. If the display becomes frozen or scrambled simply press both the BACK and ENTER button simultaneously. This will cancel all settings made and return to the factory default settings.
- Page 15 Specification – C-Stat 11-ZW | C-Stat 17-ZW Thermostat Power Supply 2 x AA Batteries Contact type Micro-disconnection Wiring configuration Voltage free c/o contacts (SPDT) Temperature differential 0.5°C Temperature accuracy +/- 0.5°C to 21°C Standards BS EN 60730-2-9 Dimensions (WxHxD) 120mm x 100mm x 26.5mm Weight 0.3kg (approx)
- Page 16 Secure Controls (UK) Limited South Bristol Business Park, Roman Farm Road, Bristol BS4 1UP E-mail: sales@horstmann.co.uk Web site: www.horstmann.co.uk Part Number P84875 Issue 1...