55
Installation & Operation Manual
8
Field wiring
(continued)
Figure 8-4 Low Voltage Field Wiring Connections
LOU
VER
R
E
LAY
TA
N
K
T
H
ER
M
O
STAT
H
E
AT / L
OOP
DE
MA
ND
3
SY
STEM
SU
PPLY
SEN
S
O
R
BU
ILD
IN
G
MA
N
A
G
E
ME
NT
SY
STEM
LO
W
W
A
TE
R
CU
T
O
FF
OU
T
D
OO
R
SEN
S
O
R
TA
N
K
SEN
SOR
SH
IELD
SH
IELD
TO
NE
X
T
BO
ILER
A B
A B
FRO
M
PR
EVIOU
S
BOILER
NO
TE
:
C
O
NN
E
C
T
IO
N
B
O
ARD
S
P
LI
T
F
O
R
IL
LU
S
T
RA
TI
O
N
P
U
R
P
O
S
E
S
WI
R
E
A
S
NEED
ED
SY
ST
EM P
U
MP
SPEE
D
C
O
NTROL
BOILE
R
PUMP
A
B
H
E
AT / L
OOP
DE
MA
ND
2
H
E
AT / L
O
O
P
DE
M
A
N
D
1
F
L
OW
SW
IT
C
H
LO
U
V
ER
PR
OVIN
G SW
IT
C
H
CO
M
NO
IM
G00126
