Robertshaw 300-225 Owner's Manual download pdf (Page 15)

WIRING DIAGRAM – 300-225

15

Note 1: If jumper removed, a sep-

arate transformer must be used to

power the loads.

Note 2: This thermostat may be

used with 24 Volt DC. The nega-

tive side of the DC supply must be

wired to the 24V (C) terminal.

300-225

RS2

RS1

RS+V

W1

Y1

G

R

24V

24V(c)

4 events 2 events

Smart fan OFF ON

4 min. (on/off) 2 min. (on/off)

Unlocked Locked

Electric Gas

1

2

3

4

5

W

Y

G

HEAT STAGE #1

COOL ST

AGE

#1

FAN

COMMON

24 VAC

Transformer

Line

Voltage

Note 1

{

Note 2

1 2 ... 10 11 12 13 14 15 16 17 18 19 20 ... 39 40

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