Sanyo DE operation manual Field wiring NE

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Field wiring (NE)

SUPER ABSORPTION

Figure 47. Typical electrical field connection diagram - Steam-fired (NE)

To power source
3 Ph,50/60Hz
380V, 400V, 415V, 440V	(52CO)	(52CH)
For emergency stop signal
(Those terminals are	Cooling water pump interlock	Chilled water pump interlock
connected by jumper)
Remove the jumper
before using			For message signal
those terminals

Start/Stop sequence of auxiliary equipments

Start

Start signal Chilled water pump operates

Stop

Stop signal Diluted operation start

Cooling water pump operates and then cooling tower fan operates

Cooling water pump stops and cooling tower fan stops

Machine operates

Chilled water pump stops

Operate air conditioners

Chiller stops entirely

Stop air conditioners

E	R0	S0	T0
				1	2	3	4	10	135	136	171	84	85

Terminal strips in the control panel

300 301 302 303 304 305 306 307 308 309 320 321 322 323 324 325 326 327

Remote signal

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.)

Terminal strips in the control panel

171 171 171

Max.voltage and Max.current :AC250V,0.1A		CH	CO
		51	51
	L	52	52
		CH	CO

Answer back indication Chilled water pump Cooling water pump

Symbols

L :Indication lamp

51CH:Chilled water pump overcurrent relay 51CO:Cooling water pump overcurrent relay

52 CO

23 CO

51 CT

L	52	L	L L	L
	CT

Remote signal indication Cooling tower fan Alarm indication Operation indication Stop indication Buzzer signal indication

51CT :Cooling tower fan overcurrent relay 23CO:Cooling tower fan thermostat

															COM
330	333	332	330	331	333	332	330	331	333	332	330	332	330	331	332
	A			A	A		A		B
4Y			4Y	4Y			4Y		4Y
1			1	2			1		2
											DC/AC 24V		DC/AC 24V
	(1)				(2)				(3)			(4)		(5)

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.

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