Honeywell RTH8500D Owner's Manual page 16

Step 7. Connect Wires to New Wallplate (Cont)
5. Loosen the screw terminals. Insert the labeled wires into the
holes on the side of the terminal block that match the letter
designations. Tighten the screw terminals.
6. If any of the labeled wires do not match the letter designations,
see next page for wire connections.
WALLPLATE
WIRE HOLE
INSERT WIRE IN HOLE
69-1725-1
LABELED WIRES
TERMINAL BLOCK
SCREW TERMINALS
RC
R
16
LETTER
DESIGNATIONS
W
Y
G
C (NOT USED)
M22207