Sanyo DE operation manual Field wiring LE, Start, Stop

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Field wiring (LE)

Figure 60. Typical electrical field connection diagram - Hot water-fired (LE)

To power source 3 Ph, 50/60Hz

380V, 400V, 415V, 440V

For emergency stop signal

(Those terminals are connected by jumper)

Remove the jumper before using those terminals

(52CO)	(52CH)
Cooling water pump interlock	Chilled water pump interlock

For message signal

SUPER ABSORPTION

Start/Stop sequence of auxiliary equipments

Start			Cooling water pump
		Chilled water pump operates	operates and then
	Start signal			Machine operates	Operate air conditioners
			cooling tower fan
Stop			operates
			Cooling water pump
	Stop signal	Diluted operation start	stops and cooling	Chilled water pump stops	Chiller stops entirely
			tower fan stops
					Stop air conditioners

Terminal strips in the control panel

E R0 S0 T0 1 2 3 4 10

135 136 171 84 85

300 301 302 303 304 305 306 307 308 309 320 321 322 323 324 325 326 327 345 346

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

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

Answer back indication Chilled water pump Cooling water pump

Symbols

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

51

H

52 H

Hot water pump

171

171	171
	COM

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

330

A

4Y

1

333

332

330	331	333	332	330	331	333	332	330	332	330	331	332
	A	A		A		B
4Y	4Y			4Y		4Y
1	2			1		2
								DC/AC 24V			DC/AC 24V

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.

(1) (2) (3) (4)

78 79