Horstmann HFT4 Data Sheet
Contents
1. EMPERATURE ACCURACY TEMPERATURE RANGE 230V 50Hz 3 1 Amps 230V AC Micro disconnection Degree 2 0 5 C at 21 C with 0 5 amp load HRT4 A 5 30 C HTT4 10 30 C HFT4 0 20 C CASE MATERIAL Thermoplastic flame HTT4 Tamper proof Room Be Therm ostat DIMENSIONS 86 x 86 x 36 25mm A tamper proof version of the HRT4 A for use in public areas or other situations where subsequent temperature adjustment is not required desirable e Internal setting dial e Temperature setting range 10 30 C HFT4 Frost Thermostat Electronic mains operated frost protection thermostat Ensures heating will switch on whenever frost conditions are detected e Internal setting dial e Temperature setting range 0 20 C RATED IMPULSE VOLTAGE ENCLOSURE PROTECTION DESIGN STANDARD Cat 2 2500V IP30 EN60730 2 9 South Bristol Park Roman Farm Road Bristol BS4 1UP t 44 117 978 8700 f 44 117 9788701 e sales horstmann co uk www horstmann co uk Horstmann is a trading name of Secure Controls UK Ltd a wholly owned subsidiary of Secure Holdings PTE Ltd Registered office Secure House Moorside Road Winnall Trading Estate Winchester Hampshire S023 7RX Registered in England No 457553 January 2013 Secure Controls UK Ltd All rights reserved The company reserves the right to alter product specifications without notice HO STMANN Part No P83867 Issue 22. HRT4 A HFT4 and HTT4 Mains Operated Electronic Room Thermostats a HO 2STMANN This range of purpose designed room thermostats from Horstmann offer the latest energy saving control technology combined with established Horstmann design and manufacturing expertise This makes them suitable for use in most types of heating system that respond to a 230 volt mains electrical On Off signal They are also perfect partners for use with Horstmann Programmers and Zone valves e 230 volt mains operation e TPI temperature control software e Standard Frost and Tamperproof versions e Easy to install and use Designed to look good these thermostats will out perform many older styles of thermostat and can often produce Savings in the order of 10 over and above those achieved by traditional units using older technology The temperature control accuracy of 0 5 C and different TPI settings for Gas Oil and Electric systems will reduce the temperature swing that normally occurs with older style thermostats As a consequence these thermostats will help to save energy as the control algorithm allows the boiler to operate in condensing mode for longer periods recommended HOSISTMANN HRT4 A Room Thermostat Mains powered electronic unit with TPI technology for new and replacement installations Temperature setting range 5 30 C Specification POWER SUPPLY CONTACT RATING CONTACT TYPE POLLUTION DEGREE T
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