- Joined
- 19 Sep 2007
- Messages
- 67
- Reaction score
- 0
- Country
I have just purchased a TH-7281B digital 250 V room thermostat but I am a bit confused and may have bought the wrong one. The instructions show terminal (1) N.O contacts for heating terminal (3) N.C contacts for cooling and terminal (5) C=Common (one wire must be connected here)
The existing thermostat (front panel broken off) which was inherited when we moved in is a Sunvic TLX 2259 220-240 V. There are 3 wires running into it but no indication of what they are. One is black, one red and one is bare. The diagram on the box shows 3 points to connect terminal (1) (N) terminal 3 (L) and terminal 4.
Can anyone throw any light on this for me?
The existing thermostat (front panel broken off) which was inherited when we moved in is a Sunvic TLX 2259 220-240 V. There are 3 wires running into it but no indication of what they are. One is black, one red and one is bare. The diagram on the box shows 3 points to connect terminal (1) (N) terminal 3 (L) and terminal 4.
Can anyone throw any light on this for me?