The TX400 is a low voltage wall mounted room temperature controller. The heart
of the TX400 thermostat is a SPDT sealed-in-glass switch, hermetically sealed
to protect from dust and moisture. This switch does not require the critical leveling
necessary with other types of thermostats. A positive action of the switch is
obtained by a magnet mounted on the temperature sensing coiled bimetal.
Please Note: Thermostat sub-base is not included. Must be purchased separately
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Q:Just a correction to my previous question about sub-base compatibility. My old sub-base green and red wire does not come out of the wall, but is actually part of the outer part of the sub-base.I have two other red and green wires coming from the wall. I believe this is a Robertshaw DA490-401 32812 sub-base and want to know if it is compatible with the 400-400 thermostat.
A:Attached below is the user manual for the 400-400 thermostat. Page 2 of the guide explains installation and wiring.
Q:will it work with millivolt
A:No, it will not.