Robertshaw 300-224 Installation And Programming Instructions page 22

OUTPUT TERMINAL FUNCTIONS -
COS
300-22a
:602
DM R.52
Far
Elc
d 175+V
d CO4 DC0
INC
OFF ON
4 events
Smart fan OFF
yl
4 min. tor offl
Unlocked
Electr ic
Single stage
only
LED#1
LED42cnly
Rd.
Knaerlramack Park Prdge. NJ
4/
w ezA atm. 0
wyl
,i1E1
r
2 events
ON
2 min. tonroff).
Lacked
Gas
Multistage
LED 41 with filter symbol
LED 42 with fault symbol
•
A
07858
TI 237-782-1
300
W2 Energizes auxiliary heat as second stage emer-
gency heat
Y2........„.....Energizes mpreSSOr
CO
stage heating or cooling
WI .Energizes auxiliary heat as last stage heating or
first stage emergency heat
V1 .Energizes compricsor #1 on a call for first stage
hemting
Or CDC/ling
G . .Fan is energized with a call for h
or by pressing the FAN button
R. Independent switching voltage'
24V...........24 VAC hot from the equipment transformer
VAC common from the equipment transformer
24V(h).„....24
LEM .........Free lights for status
or function indication
LED2
RS2
...........USE tO COnnect
and/or indoor
RS'l
RS+V to the instructions included with the sensors.
0 es t reversing continuously in the cool-
he
.Energiz
ing mode
ES. Energizes the reversing continuously in the heat-
D M°
NO R i nglaayndC is de
ff
O D
GUM event. h all other events, the relay coil is
NC energized.
'Allows or operation required on
DC
and McDuay units.
To replace a dual transformer system, connect the hot
lead of the higher rated transformer (T1) to the 24V ter-
minal. Connect the common to the 24V(C). Connect the
common of the second transformer to the common read
cJIM T)vagi i aeWf or wire nut the hot lead of T2.
e i j
782 ,Fax:
Web: wermamgarreem Email: mliaigamgarr.com
201-782-1783
22
-
229
f
42 On a ODD Or SE COnd
eating or coolig n
outdoor temperature
Sensor
options. Refer
remote Sensor
d as -
e n in the night
erg ized
older Len x
SOME
no