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Sanyo DE User Manual Page 41

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79
SUPER ABSORPTION
78
ENVIRONMENTALLY FRIENDLY TECHNOLOGY
Field wiring (LE)
Figure 60. Typical electrical field connection diagram - Hot water-fired (LE)
The unit can be operated by the following five type signal.
(1)Non-voltage normal open contact(A) for start & stop (DC24V 10mA).
:Wiring the terminal 330 and 333.
(2)Non-voltage normal open contact(A) for start (DC24V 10mA).
:Wiring the terminal 330 and 333.
Non-voltage normal open contact(A) for stop (DC24V 10mA).
:Wiring the terminal 331 and 333.
(3)Non-voltage normal open contact(A) for start (DC24V 10mA).
:Wiring the terminal 330 and 333.
Non-voltage normal close contact(B) for stop (DC24V 10mA).
:Wiring the terminal 331 and 333.
(4)Continuous signal of DC/AC 24V for start & stop.
:Wiring the terminal 330 and 332.(Those terminals are non-polarity.)
(5)Pulse signal of DC/AC 24V for start.
:Wiring the terminal 330 and 332.(Those terminals are non-polarity.)
Signal of DC/AC 24V for stop.
:Wiring the terminal 331 and 332.(Those terminals are non-polarity.)
Remote signal
Terminal strips in the control panel
Chilled water
pump interlock
To power source
3 Ph, 50/60Hz
380V, 400V, 415V, 440V
E
R0
S0
T0
(52CH)
171
Cooling water
pump interlock
(52CO)
330
A
DC/AC 24VDC/AC 24V
(4)(1)
136
135
4Y
1
1
2
3
4
10
For emergency stop signal
(Those terminals are
connected by jumper)
Remove the jumper
before using
those terminals
333
332
171 171
330
A
(2)
4Y
1
331
333
332
4Y
2
AB
4Y
2
332
4Y
1
331
333
(3)
A
330
330
332
330
332
331
171
COM
84
85
For message signal
Note
1.Be sure to insert 23CO at the cooling water inlet side.
2.Be sure to wire the 52CH(interlock) between terminals 171 and 136.
3.Be sure to wire the 52CO(interlock) between terminals 171 and 135.
4.Be sure to wire the chilled water pump control relay between terminals 302 and 303.
5.Be sure to wire the cooling water pump control relay between terminals 304 and 305.
6.Be sure to wire the hot water pump control relay between terminals 345 and 346.
L  :Indication lamp
51CH:Chilled water pump overcurrent relay
51CO:Cooling water pump overcurrent relay
51CT :Cooling tower fan overcurrent relay
51H :Hot water pump overcurrent relay
23CO:Cooling tower fan thermostat
Symbols
Terminal strips in the control panel
LL
Max. voltage and
Max. current
:AC 250V,0.1A
Stop
indication
Operation
indication
Answer back
indication
52
CT
52
H
Chilled
water pump
52
CH
51
CH
51
CT
Cooling tower
fan
52
CO
23
CO
51
CO
52
CO
Cooling water
pump
Start/Stop sequence of auxiliary equipments
Start
Start signal
Machine operates
Chilled water pump operates
Cooling water pump
operates and then
cooling tower
fan
operates
Stop
Stop signal
Diluted operation start
Chiller stops entirely
Cooling water pump
stops and cooling
tower fan stops
L
Chilled water pump stops
300
301
302
303
304
305
306
307
308
309
320
321
322
323
324
325
326
327
345
346
L
Remote signal
indication
L
Alarm
indication
L
Buzzer signal
indication
51
H
Hot water
pump
Operate air conditioners
Stop air conditioners
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