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Wiring up new room thermostat

Former Community Member
Former Community Member
Hi guys


Hope you’re all keeping well and safe?


I need some help with wire colour identification for my new Flomasta and 6259G wired thermostat.  I have worked on any heating/water installs yet, so I’m not familiar with the wiring colours.  My old analogue Honeywell thermostat has 5 wires, Gn/Y, blue, black, light grey and brown.  The Honeywell is wired 1 gn/y, 2 blue, 3 black, 5 brown, light grey isn’t used.  New flomasta uses only 3 wires, Com, NO & NC, I know the NO & NC means open/closed, but which colour wire goes to which terminal?
Parents
  • I fitted a small water heater in a 60's primary school that thad been closed and handed over to the community. It was in part of a classroom used as a kitchen for teaching. I turned off the water at the mains and ran the cold water to drain the system. An hour later it was still running.


    Further investigation showed that all the cold water in the main toilets, drinking fountains and sinks all came from a very big cold water tank on the roof. It was in a small hut and had a partial cover but here was lots of unrecognisable stuff on the floor of the tank. The children and teachers had been drinking from the contaminated tank for years.
Reply
  • I fitted a small water heater in a 60's primary school that thad been closed and handed over to the community. It was in part of a classroom used as a kitchen for teaching. I turned off the water at the mains and ran the cold water to drain the system. An hour later it was still running.


    Further investigation showed that all the cold water in the main toilets, drinking fountains and sinks all came from a very big cold water tank on the roof. It was in a small hut and had a partial cover but here was lots of unrecognisable stuff on the floor of the tank. The children and teachers had been drinking from the contaminated tank for years.
Children
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