Horstmann HRT4-B User Manual

The HRT4-B is a battery powered electronic room thermostat designed to provide
optimum comfort with close control of the energy used to heat the home.
The HRT4-B will only operate when 2 x AAA batteries have been fitted and the
thermostat is wired into your central heating system.
INSTALLATION AND CONNECTION OF THE HRT4-B MUST BE CARRIED OUT BY A
SUITABLY QUALIFIED PERSON.
WARNING: ISOLATE MAINS SUPPLY BEFORE COMMENCING INSTALLATION.
1
Battery Operated Electronic Room Thermostat
with TPI temperature control software
HRT4-B
User and Installation Instructions

Horstmann HRT4-B Specifications

Power

power supply	2 x AAA alkaline batteries
contact rating	3 (1)amp at 230v AC
rated impulse voltage	Cat 1 - 1500v

Operating Environment

temperature accuracy	+/- 0.5°C
temperature range	5-30°C
enclosure protection	IP30

Weight and Dimensions

dimensions	86mm x 86mm x 36.25mm