Navien NHB Series, Руководство по установке и эксплуатации

Страница: 116 / 135

116 Appendixes
12.2 Wiring Diagram
AC24V
T/S INPUT
***LWCO
***Flow Switch (E765)
System Supply **Temp Sensor System Return **Temp Sensor Outdoor **Temp Sensor DHW Tank **Temp Sensor
0-10 VDC Output
Supply **Temp Sensor
Water Pressure Sensor
Blower
AC Gas Valve
(NFB-399C)
Thermal Fuse
(Burner)
Burner
Flame Rod
Igniter
Blower
Supply Voltage
Graphic Panel
*T/S_1
LN
G
ON
OFF
Boiler Pump FUSE
(250VAC_10A)
ZONE3 Pump FUSE
(250VAC_10A)
ZONE2 Pump FUSE
(250VAC_10A)
ZONE1 Pump FUSE
(250VAC_10A)
DHW Priority
Air Handler
Boiler State
Boiler Error
Boiler Pump
CND1 CND2
CNP1 CNP2
CNA1
CNR2
CON1
T/S ZONE1
T/S ZONE2
T/S ZONE3
CNC1
CNC5
CNC6
CNC7
CNC3
CNC8
CNC9
CNC2
CNC10
CNT1
CNT2
CNT3
CNT4
CNU1
CNU2
CNG1
CNH1
CNJ1
CNK1
CND1
CNA1
CNI1
CNB1
AC_N
ZONE1
Pump
ZONE2
Pump
ZONE3
Pump
NC
Neutral
Liv
e Liv
e LW
C
O
AC24V
T/S INPUT
*T/S_2
AC24V
T/S INPUT
*T/S_3
*T/S_4
AC24V
T/S INPUT
Manual Reset Safety Switch (E774)
Power Trans
AC_L
IN
OUT
AC_N
AC_L
IN
OUT
AC_N
AC_L
IN
OUT
Ground Ground
Ground
NO
COM
0-10 VDC Input
Auto Reset Safety Switch (E775)
Return **Temp Sensor
Exhaust 1 **Temp Sensor
Exhaust 2 **Temp Sensor
/'#
$$
Dual
Venturi
CNO1
Ground
-
+
-
+
(24V 75VA)
Ground
Cascade Line
Air Pressure Sensor
High Temp Limit
W
ARNING
ELEC
TRIC
AL SHOCK HAZARD
F
or y
our saf
et
y,
turn off elec
trical po
w
er supply
bef
or
e mak
ing an
y elec
trical c
onnec
tions t
o
a
v
oid
possible elec
tric hazar
d
. F
ailur
e t
o
do so can cause
sev
er
e personal injur
y or death.
P
umps must be elec
trically g
rounded as r
equir
ed
b
y
National Elec
trical C
ode
.
*T/S: Thermostat **Temp: Temperature ***Factory jumper is connected as default. Remove it when using an additional appliance.
NO
TICE
Ground
Main Switch
Terminal
Block
External Input (AC 120V)
DC Gas Valve1
(NFB-301C)
DC Gas Valve2
(NFB-301C)
AC_L
Ground
1 2
O
N
0/
A B G
ModBus / BACnet