Robertshaw 300-224 Installation And Programming Instructions page 22

OUTPUT TERMINAL FUNCTIONS -
L-nt1[4.3 fli
:
&O,
300-22S
of.
6.7.2
R.S2
HS
EV4
1124k:
NO
OCC
rh2.
El."•
OFF ON
4 events
OFF
Smart
fan
4 min (onialf)
Unlocked
Electric
Single stage
LED 101
Only
LED#2aniy
L4424
"i
win
2
"i13]
2: 1
r
2 events
ON
2 min. fortioff)
Locked
Gas
Multistage
LED 111 with titer symbol
LED is2withfault symbol
300-229
W2. .......... Energizes auxiliary heat as second stage emer-
gency heat
Y2.....„.. Energizes compressor
stage heating or cooling
W1
Energizes auxiliary heat as last stage heating or
first stage emergency heat
.....
Vi .......
Energizes cOrnprESSOr El
11 Mting Or CDC/ling
• .Fan is energized with a call for heating or cooling
or by pressing the FAN button
Ft
Independent switching voltage'
24V
24 VAC hot from the equipment transformer
24V(c) ...... 24 VAC common from the equipment transformer
LED1 .......
Fnee lights For status
LED2 or function indication
USE to connect
RS1 and/or indoor
RS+V
to the instructions included with the sensors.
O
Energizes the reversing continuously in the cool-
ing mode
B.
.Energizes the reversing continuously in the heat-
ing and off modes.
NO.
.Pelay coil is deenergized
COM
event. In all other events, the relay coil is
NC
energized.
" Allows for DC operation required on
and McQuay units.
To replace a dual transformer system, connect the hot
lead of the higher rated transformer (Ti) to the
minal. Connect the common to the 24V(C). Connect the
common of the second transformer to the common lead
of the Ti and tape off or wire nut the hot lead of T2.
22
f
r2 on a call for second
on call for
a fret
outdoor temperature
Sensor
options. Refer
remote Sensor
the night
in
older Lennox
SOME
stage
ter-
24V