Horstmann ThermoPlus Data Sheet
ThermoPlus AS1, AS2 &
PRT1
Programmable Room Thermostats
Mains and battery powered programmable room
thermostats designed for ease of use with a unique 3 button
user interface. ThermoPlus allows a high and low
temperature setting to be pre-programmed with simple user
overrides available for the user.
Despite the simple user interface ThermoPlus contains the
latest TPI energy saving software and can make a significant
contribution to saving energy. ThermoPlus has voltage free
contacts and is ideal for use with combi boilers.
Ÿ Simple 3 button operation
Ÿ LED warm/cool display
Ÿ Preset clock
Ÿ Automatic BST/GMT time change
Ÿ Preset or custom heating profiles
Ÿ Back lit LCD display
Ÿ Audible and tactile feedback
Ÿ Fixed hypothermia protection (PRT1)
Ÿ Frost protection setting
Specification
AS1 & PRT1
AS1 is mains powered for applications where a
permanent mains supply is readily available.
PRT1 is identical to the AS1 but with a fixed
hypothermia setting of 15C.
AS2
AS2 is battery powered for applications where no mains
supply is readily available to operate the unit or an
existing thermostat is being replaced.
Additional features include 3 standard AA batteries, 2
years+ battery life and separate clock power back-up.
Battery life is conserved by means of an 8 second auto
power down mode to all indicator lights.
CONTACT RATING 3 (1) Amps 230-240V
AC
CONTACT TYPE Micro disconnection
Voltage Free
SUPPLY AS1/PRT1 – 230V AC
50Hz
AS2 – 3 x AA (LR6)
batteries
RESERVE BATTERY TYPE Lithium battery
POLLUTION DEGREE Degree 2
DOUBLE INSULATED Yes
ENCLOSURE PROTECTION IP30
OPERATING TEMPERATURE 0 °C to 40 °C
RANGE
TEMPERATURE CONTROL +5 °C to +30 °C
RANGE
STANDBY TEMPERATURE +5°C to +10°C
CASE MATERIAL Thermoplastic flame
retardant
DIMENSIONS 120 x 90 x 32 mm
DISPLAY Liquid Crystal, back
lit
CLOCK 24 Hour
DISPLAYED TIME 1 minute steps
ADJUSTMENTS
SWITCHED TIME 15 minute steps
ADJUSTMENTS
OPERATING PERIODS Warm – 3 per day
PER DAY
PROGRAMME SETTINGS Auto, Standby
OVERRIDE Instant Warm / Cool
MOUNTING AS1/PRT1 – Industry
Standard 6 pin plate
AS2 – Standard wall
box fixing
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.
Part No. P82347 Issue 6
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