Refurbished Q550 Q550 Zone:Zone 4 (56°N) Programming: 24 hour with 2

Programming: 24 hour with 2 or 3 on/off operations

Operating temperature: -5 °C to 45°C

This mechanical 2 wire tamper proof thermostat is very easy to install and having volt free contacts is suitable for systems with either a combination or normal boiler

Popular applications for solar time switches include street

Moisture Protection Ordinary: has no special protection against moisture

Refurbished Q550 Q550 Zone:Zone 4 (56°N) Programming: 24 hour with 2Sangamo Q550 Astro Dials come in 4 variations depending on where you are in the British Isles the switch is adjusted to match the slight differences in sunrise and sunset times. Simply locate where you are on the map and add the number on to the end of the part number or select the equivalent zone. The ON operation always tracks SUNSET while the OFF operation can be made either to track SUNRISE, or to occur at a fixed time between 8: 30pm and 1: 00am.