53
Installation & Operation Manual
8
Field wiring
(continued)
LO
U
V
ER
R
E
LA
Y
FLOW
SW
ITC
H
TA
N
K
T
H
E
R
M
O
S
T
A
T
R
O
O
M
T
H
ER
M
O
ST
A
T
3
SY
ST
EM SU
PPL
Y
SEN
S
O
R
BUILDING
MA
N
A
G
E
ME
N
T
SY
ST
EM
LOU
VER
PR
OVI
N
G SW
IT
C
H
CO
M
NO
LOW
W
A
T
E
R
C
U
TOFF
OU
T
D
OO
R SEN
S
O
R
T
A
NK SEN
S
O
R
SH
IEL
D
SHIELD
TO
NE
X
T
BOILER
A B
A B
F
R
O
M
PREVIOU
S
BOILER
R
O
O
M
T
H
ER
M
O
ST
A
T
1
R
O
O
M
T
H
ER
M
O
ST
A
T
2
NO
T
E
:
CO
NNE
C
T
ION
B
O
ARD
S
P
L
IT
F
O
R
ILLUS
T
R
A
T
ION P
U
R
P
OS
E
S
WI
R
E
A
S
NEEDE
D
SY
ST
EM PUMP
SPEED CO
NTRO
L
BO
ILER PUMP
A
B
Figure 8-4
Low Voltage Field Wiring Connections
