Horstmann 425 Tiara User Manual

The Horstmann 425 Tiara and Diadem programmers are 2 circuit central
heating and hot water programmers able to switch ON and OFF twice
every 24 hours. An advance switch is provided to make temporary
overrides to the ON or OFF periods and a selector switch gives a further
choice of programmes.
Horstmann 425 Tiara/Diadem
Electro-mechanical Programmers
User Operating Instructions
1

Horstmann 425 Tiara Specifications

General

Display	LCD
Battery Backup	Yes
Voltage	230V AC
Switching Current	3A
Temperature Range	5°C to 30°C
Weight	200g
Type	Electronic
Programming	5/2-day
Power Supply	230V
Contact Rating	3(1)A
Number of on/off times	3 per day
Boost Function	Yes