Lochinvar KNIGHT 399 - 800 - Manual (Page 48)

Installation & Operation Manual
48
8
Field wiring
AU
X
. D
E
V
IC
E
PI
LO
T
S
U
P
P
LY
24
V
A
C
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AU
X
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PROV
IN
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FL
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SW
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A
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ARM
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C
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RU
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IM
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CO
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A
C
TS
SY
STE
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OR
DH
W
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A
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K
SE
N
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L
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GR
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0-
1
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N
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A B S
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SEQU
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N
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IN
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LOW WATE R
CUTO FF
CN
1
CN2
CN3
CN
4
CN
5
C
NO
NC
C
NO
NC
AUX
. D
EVIC
E
RE
L
A
Y
HIGH
GAS
PR
ESSU
R
E
SW
ITCH
(500 ON
L
Y
)
LOW
GAS
PR
ESSUR
E
SW
ITCH
(5
0
0
O
N
L
Y
)
FL
OW
S
W
IT
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H
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NK TH
ERM
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ST
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/
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NE
CON
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RO
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SY
STE
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PPL
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SEN
SOR
OUTDOOR
SENSOR
BU
ILD
IN
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MA
NA
G
M
E
N
T
SY
STE
M
AUX
. D
EVIC
E
PROVIN
G SW
ITCH
CO
M
NO
A
A
B
A B
SH
IEL
D
SHIEL
D
FR
OM
PREVIOU
S
BOILER
TO NE
X
T
BOILER
(AU
X
) D
H
W
SENSOR
LOW
W
A
TER
CU
T
O
FF
Figure 8-3 Low Voltage Field Wiring Connections