Johnson Controls T701DFN-1 Installation Instructions Manual page 6

STEP #3
If the terminal designations on your old
thermostat do not match those on the
new thermostat, refer to the chart below.
2-PIPE SYSTEMS
Wire from the
old thermostat
terminal marked
Y1, Y or C
W1, W or H
Rh, R, M, Vr, A
C
G, F or LOW
MED
HIGH
Note: Be sure to seal any opening through
the wall behind the thermostat with fireproof
material to prevent improper temperature
sensing of the conditioned space.
WIRE CONNECTIONS
Install on the
Function new thermostat
terminal marked
Water Valve
Strip Heater
Power
Common
Low
Fan Speed
Medium
Fan Speed
High
Fan Speed
Page 5
Y1
W1
R
C
G
G2
G3