WIRING CONNECTIONS
HeatNet Control REV 1.38-1
Page 35
Figure 28
Heating Method 2 and 4: AA-High Fire and High/Low Master or Member Boiler
Method 2
Stage Control Inputs:
Stage 1, Stage 2
1
2
Method 4
Close this contact to run
boiler at High Fire
AA
A
C
G
N
D
1 AMP
VFD
OUTPUT
O
U
T
P
U
T
DHW PUMP/
DH
W T
AN
K
AUX STATUS
Aux Status/
+
PUMP/VALVE
M
O
D
B
U
S
H
N
E
T
AL
RM
R
ST
DA
MP
ER
HE
AD
ER
RE
TU
RN
SU
PP
LY
P
W
M
/0
-1
0
4
-2
0
m
a
8
SPARE 4
LWCO
-
+
-
+
-
+
-
+
-
+
-
+
KNSMITH R1.0
KN/F-SERIES
PUMP
1
1
1
1
1
1
8
10
1
8
8
1
1
1
1
RET
DISPLAY/KEYPAD
DAMPER
HEAT
ALARM
DEMAND
ALARM
LOCAL PUMP
DAMPER
SYSTEM PUMP
T2
T1
OR OVR
AA
LOCAL
DAMPER
SYSTEM
SY
ST
EM
HI/LO NO
2
4
V
D
C
4-2
0m
A
2
4
V
D
C
SP
AR
E 2
WT
R O
UT
OU
TS
ID
E
0
-1
0
V
D
C
EXT OPERAT
VFD
WTR FLW
GAS PR
SYSTEM
24V
24V
BOILR START
24VAC TRANSFORMER
PILOT VALVE
MAIN VALVE
HIGH LIMIT
Unused
4-20ma
PWM/0-10
1
1
8
+
-
AIR
WT
R I
N
AIR PR SW
VALVE ALRM
FLAME SAFE
IN
T
E
R
L
O
C
K
S
ENABLE
HIGH FIRE
R
E
T
4-20mA/
CAL
NORM
PWM
0-10
WTR FLOW
LOCAL
0-10v
A
+
B
-
G
A
+
B
-
G
A
+
B
-
G
ALARM
OPTION
S
e
n
s
e
2
4
V
A
C
DHW PUMP
LOW FIRE
L
2
L
1
L
1
3
P
O
W
E
R
S
E
R
V
IC
E
L
2
A
C
G
N
D
1
02-2008
OPERATOR
O
U
T
P
U
T
0
-1
0
V
D
C
W
B
R
MODULATION CONTROL
-
4-20mA
BLOWER M
IG
N
IT
IO
N
C
O
N
T
R
O
L
Unused
1
1
1
1
J
u
m
p
e
r
2
-3
fo
r
1
3
5
o
h
m
2
3
HEAT NET
K8
J2
2
J
2
0
J
6
D
5
D
4
K7a
T
7
7
_
R
E
L
A
Y
K7
J
2
S
4
S2
SIP1
2
0
1
9
1
2
J9
F
3
J
1
0
B
U
2
6
J12A
J12B
J13
J
1
0
A
F
1
J
4
J
1
6
J18
J
1
9
J
1
4
K1
K4
K5
K6
K2
BZ1
JP
3
K1a
T
7
7
_
R
E
L
A
Y
K2a
T
7
7
_
R
E
L
A
Y
K4a
T
7
7
_
R
E
L
A
Y
K5a
T
7
7
_
R
E
L
A
Y
K6a
T
7
7
_
R
E
L
A
Y
J10
J
1
1
J
1
2
S
3
J
8
J
1
7
Y
1
S1
J
2
1
JP4
U4
PROTOCESSOR
J
P
S
1
J
1
J
5
A
J
5
B
J3
J5
Содержание Smith Series
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