Hi,

I currently have a Robertshaw 300-208 thermostat running my Luxaire
heat-pump and (some other brand) electric furnace as auxiliary heat.


I just bought the Honeywell RTH8500 thermostat to replace it.


There are two labels on the Robertshaw thermostat which do not
correspond to any label referred by the installation manual for the
Honeywell thermostat : "24V" and "24V(c)".


I've included pictures of the current wiring. Because some of the
labels are hidden in the pictures, here's a top-to-bottom list:


W1
Y1
G
R
24V
24V(c)
O
B


Here are the pictures:


http://www.jpti.ca/IMG_6107_2.JPG
http://www.jpti.ca/IMG_6102_2.JPG
http://www.jpti.ca/IMG_6103_2.JPG
http://www.jpti.ca/IMG_6105_2.JPG


Can anyone tell me which of my wires I should connect to which
terminal on the Honeywell ?


Thanks.