
4.
Function
Neptune_GB_Ver.2.0_10/03
A1
B8
B9
S1
A2
12
S1
1a
1
2a
2
T1
Q
A1
A2
K1
A1
A2
K2
1 3 5
2 4 6
PE
L2
L3
L1
Y1
B2
B3
7
4
8 VAC
24 VAC
Mains VAC
F1
F2
µP
X2
P
B6
B4
B1
B7
Remote
4
4a
~
+
U2 V2 W2
M
3~
V1 W1
U1
M1
F11
13
14
11
14, 24
14, 24
8
6 5 4
1 2 3
X11
MT
9
7
Xma
Xmb
T2
M
1~
M2
A1
A2
12
1a
1
2a
2
T1
11
7
4
14
13
12
F1
F2
Datalogger 5 VDC
X2
P
Remote
4
4a
~
+
U2 V2 W2
M
3~
V1 W1
U1
M1
F11
13
14
11
14, 24
14, 24
8
6 5 4
1 2 3
X11
7
T2
M
1~
Electric system
The machine is supplied with main power which is transformed into 8 VAC to supply the
microprocessor and sensors and 24 VAC to supply the actors (contactor, relay, solenoid valve).
To run the machine on hot water the following must be o.k.: on the front panel S1 and the
temperature setting on hot and the spray handle open. If all the sensors are closed and o.k. K1
will start the motor and K2 the ignition and fan. Y1 will open and let in fuel to the combustion
chamber. If the flow stops B2 will open and the 24 VAC supply to the solenoid Y1 will be
interrupted and the combustion will stop.
23.
B1
B3
B7
Y1
B8
B6
B2
B4
B9
MT
T2
S1
B1: Temperature sensor
B2: Flow switch
B3: Safety thermal switch
B4: Microswitch
B6: Oil level switch
B7: Flame sensor
B8: AntiStone level switch
B9: Fuel level switch
MT: Motor temp. switch
S1: Main switch
T2: Ignition transformer
Y1: Solenoid valve
Содержание Neptune 5
Страница 1: ...NEPTUNE 5 NEPTUNE 7 Service Manual...