HeatNet Smith Series, User Manual

Page: 38 / 82

WIRING CONNECTIONS HeatNet Control REV 1.38-1
Page 38
Figure 31 Relays, Interlocks and Boiler Status
A
C
G
N
D
1 AMP
VFD
OUTPUT
O
U
TP
U
T
DHW PUMP/
D H W T A N K
AUX STATUS
Aux Status/
+
PUMP/VALVE
M
O
D
B
U
S
H
N
E
T
A L R M R S T
D A M P E R
H E A D E R R E T U R N S U P P L Y
P
W
M
/0
-1
0
4-
20
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
S Y S T E M
HI/LO NO
24
V
D
C
4 - 2 0 m A 24
V
D
C
S P A R E 2 W T R O U T O U T S ID E
0-1
0V
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
+ -
A IR
W T R I N
AIR PR SW
VALVE ALRM
FLAME SAFE
IN
TE
R
LO
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
en
se
24
V
A
C
DHW PUMP
LOW FIRE
L2
L1 L1
3
P
O
W
E
R
S
E
R
V
IC
E
L2
A
C
G
N
D
1
02-2008
OPERATOR
O
U
TP
U
T
0-1
0V
D
C
W B R
MODULATION CONTROL
-
4-20mA
BLOWER M
IG
N
IT
IO
N
C
O
N
TR
O
L
Unused
1
1
1
1
Ju
m
pe
r 2
-3
fo
r 1
35
o
hm
2
3
HEAT NET
K 8
J2
2
J2
0
J6
D
5
D
4
K7a
T7
7_
R
E
LA
Y
K7
J2
S
4
S2
SIP1
20 19
1
2
J9
F3
J1
0B
U
26
J12A
J12B
J13
J1
0A
F1
J4
J1
6
J18
J1
9
J1
4
K1
K4
K5 K6
K2
BZ1
JP
3
K1a
T7
7_
R
E
LA
Y
K2a
T7
7_
R
E
LA
Y
K4a
T7
7_
R
E
LA
Y
K5a
T7
7_
R
E
LA
Y
K6a
T7
7_
R
E
LA
Y
J10
J1
1
J1
2
S
3
J8
J1
7
Y
1
S1
J2
1
JP4
U4
PROTOCESSOR
JP
S
1
J1
J5
A
J5
B
J3
J5
Unused
Local Water Flow Switch
External Operator
Spare for user or Factory
Gas Pressure (High & Low)
Variable Frequency Drive
Low Water Cutoff
System Water Flow Switch
Combustion Air Damper
prove switch
Enables
Combustion Air
Damper
Local Pump
Alarm Closes on
Fault
Domestic Hot
Water Pump/Valve
Enables System
Pump
Operator used to
Start Boiler
The highest priority is the Lowest Number.
The highest priority is displayed as the fault.
1
2
3
4
5
6
7
8
Priority
1. Connect a wire after the boiler interlock
to the interlock terminal. Inputs are 120 vac.
2. Enable the interlock to monitor it in the
ADVANCED SETUP:SYSTEM menu
Interlocks
*High Limit (Use Operator IN)
Valve Alarm
Flame safeguard alarm
*Blower
*Pilot Valve
*Main Valve
Air Proving Switch
Ignition Handshake Signals
USB Firmware
Update jack
Low Fire
Hold Switch
Calibrate
Switch
*Required