Robertshaw Deluxe Programmable - Manual (Page 19)

WIRING DIAGRAM – 300-227
19
Note 1: If jumper is removed, a separate
transformer must be used to power the loads.
Note 2: This thermostat may be used with 24
Volt DC. The negative side of the DC supply
must be wired to the 24V (c) terminal.
4 events 2 events
Unlocked Locked
Standard Add-on
1
2
3
4
5
6
7
8
Single stage Multistage
W2
Y2
W1
Y1
G
R
24V
24V(c)
O
B
LED1
LED2
RS2
RS1
RS+V
NO
COM OCC
NC
Smart fan OFF ON
4 min. (on/of f) 2 min. (on/of f)
LED #1 only LED #1 with filter symbol
LED #2 only LED #2 with fault symbol
4 events 2 events
Unlocked Locked
Standard Add-on
1
2
3
4
5
6
7
8
Single stage Multistage
300-227
W2
Y2
W1
Y1
G
R
24V
24V(c)
O
B
LED1
LED2
RS2
RS1
RS+V
NO
COM OCC
NC
24 VAC
Transformer
Line
Voltage
Note 1
Common
B
O
G
Y1
W1
Y2
W2
Reversing Valve
Remove connection if
separate transformer used
{
Note 2