Spare Y6630D Thermostat - The Y6630D is a battery powered Wireless Room Thermostat and mains powered HC60NG Receiver Box, pre-bound to give intelligent room temperature control of a single zone. It can be used in conjunction with the Sundial Y or S Plan or as a stand alone device for room temperature control of a combi boiler system. The HC60NG receiver can be wired directly to motorised zone valves or actuators.
Simple dial for temperature setting, no programming
LED indication of battery status and RF signal
Solid state temperature sensing
'ON' LED indication
Range stop function Pre-bound wireless thermostat and receiver