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The primary is present in almost all boilers and it allows the heat to be transferred from the burner to the water within the system
suitability for replacing a wide range of internal boiler pumps can also be confirmed
0020219272
ECOTEC PLUS 630 VU 306/5-5 A R4 – 41-044-83
Designed specifically for selected ecoTEC Plus models
Honeywell Home T4R Wireless Programmable Thermostat Kit Y4H910RF4003 display The primary is present inHoneywell HomeT4 is designed to provide automatic time and temperature control of domestic systems. It is compatible with 24 V to 230 V on or off appliances such as gas boilers, combi boilers and zone valves and can be used as a temperature sensing device in an S or Y Plan system. It is well suited to control combination boiler installations or additional zones in an S Plan Plus system. Compatible with 24 V to 230 V on or off appliances such as gas