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- 3 Apr 2004
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Changing my boiler looks like its not going to be a viable option, so plan B is to change the old bits of the CH system to narrow down the problems.
First job to change the old honeywell thermostat for a digi sunvic one.
The problem I now have is the honeywell has 2 cables going to it, one from the programmer and another. Currently set at
programmer red in 1
other red in 3
Both blacks in 4
The Sunvic has 3 connections
3 = C
2 = ON
1 = OFF
Anybody know which connections go where because there is no space i the sunvic to have two blacks in one hole so I guess one cable is no longer required as sunvic has batteries.
Help appreciated.
First job to change the old honeywell thermostat for a digi sunvic one.
The problem I now have is the honeywell has 2 cables going to it, one from the programmer and another. Currently set at
programmer red in 1
other red in 3
Both blacks in 4
The Sunvic has 3 connections
3 = C
2 = ON
1 = OFF
Anybody know which connections go where because there is no space i the sunvic to have two blacks in one hole so I guess one cable is no longer required as sunvic has batteries.
Help appreciated.