About Advanced Features & Operation
Page 18
If the Two-Wire thermostat is losing time or
showing PF or P- it may be neccessary to
install the 10 watt 250 ohm resistor that
is supplied with the thermostat.
TWO-WIRE THERMOSTAT
INSTALLATION WIRING
HVAC Equipment
R
W1
C
Two-Wire Thermostat
250 OHM
10 WATT
Resistor
(If Required)
L
SGR N
D
RS
RS+5
L