Horstmann ThermoPlus AS2-RF Datenbogen

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Reduced energy costs
Minimal boiler cycling and reduced flow 
temperatures through use of sophisticated TPI 
control algorithms
Runs on 2 standard AA type batteries
No need for additional wiring when replacing an 
existing thermostat
Frost protection setting

Wireless and Mains versions are also available in this 
range

POWER SUPPLY

2 x AA Batteries

CONTACT TYPE

Micro-disconnection

WIRING CONFIGURATION

Voltage free c/o 

contacts (SPDT)

CONTACT VOLTAGE RATING

230V AC 50Hz (30V 

dc)

CONTACT CURRENT RATING

8A (1A inductive)

TEMPERATURE 
DIFFERENTIAL

0.5°c

TEMPERATURE ACCURACY

+/- 0.5°c at 21°c

DESIGN STANDARDS

BS EN 60730-2-9

DIMENSIONS

100 x 120 x 26.5mm

ENCLOSURE

Flame retardant 

thermoplastic

ENCLOSURE PROTECTION

IP30

POLLUTION  DEGREE

Degree 2

INSULATION CLASS

Double insulated

OPERATING TEMPERATURE 
RANGE

0 °C to 40 °C

CLOCK

12 / 24 Hour with 

Automatic BST / GMT 
adjustment

SETTINGS PER DAY

6 target temperature 

settings per day

MOUNTING

Industry Standard 6 

terminal plug in wall 
plate

Part No. P84880 Issue 2

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, SO23 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.