belling DB90 thermostats

[steveDAS]

the old hob stats are blue the number on them don’t match with numbers on new one can any one help
old stat info invensys
4,n = blue leads
2a = mauve lead or brown lead
s2 pilot or 0,5a = red lead, white lead
p1,L red

new stat info EGO
p1
2
p2
4
4a
s2
s1
😕

[DentedPorsche]

Re: belling DB90 thermostats

Go into “Diamond H Wiring Reference” sticky and download the pdf. It contains all the info I had to hand on various regulators. May well be of some assistance to you.

To try and help further we would need the model numbers of the switches.

brian

[Author]

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