HARDY MANUFACTURING CO., INC (MODEL KB125) PAGE 14
3-1
Connection to Central Unit with existing Blower Relay (continued)
1
2
3
4
5
6
7
8
R
C
G
W
L1
L2
24 VOLTS
R
C
G
W
EXISTING
TRANSFORMER
ORIGINAL
THERMOSTAT
EXISTING
BLOWER RELAY
NEW
RELAY
NEW
THERMOSTAT
L1
L2
115V
24
V
TR
TC
R1
R2
T2
FS
1
2
4
5
6
7
8
R2
R2
R2
TG
CONNECTION DIAGRAM
SCHEMATIC DIAGRAM
G
R
LOW VOLTAGE FIELD WIRING
White
Red
White
Red
Green
Green
Red
Legend
R1
existing blow er relay
R2
new control relay
FS
existing thermostat
T2
New thermostat
TC
terminal strip C connection
TR
terminal strip R connection
TG
terminal strip G connection
R
existing thermostat R connection
G
existing thermostat G connection
1-8
terminal numbers of relay contacts
R
W