ENVIRONMENTALLY FRIENDLY TECHNOLOGY
Field wiring (DE)
SUPER ABSORPTION
Figure 26. Typical electrical field connection diagram -
To power source |
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3 Ph,50/60Hz |
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| (52CH) |
| (52F) |
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400V, 415V, 440V |
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For emergency stop signal |
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(Those terminals are | Coolingwater interlockpump |
| Chilled/hotwater interlockpump |
| Ventilationfan interlock |
| For message signal | |||
those terminals |
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connected by jumper) |
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Remove the jumper |
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before using |
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Start/Stop sequence of auxiliary equipments
Start |
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| Chilled/hot water pump | ||
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| Start signal |
| operates and |
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| ventilation fan operates |
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Stop
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Stop signal |
| Diluted operation starts |
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Cooling water pump operates and then cooling tower fan operates
Cooling water pump stops and cooling tower fan stops
Machine operates
Chilled/hot water pump stops and ventilation fan stops
Operate air conditioners
Chiller stops entirely
Stop air conditioners
E | R0 | S0 | T0 | 1 | 2 | 3 | 4 | 10 | 135 | 136 | 138 | 171 | 84 | 85 |
Remote signal
The unit can be operated by the following five type signal.
Terminal strips in the control panel
300 | 301 | 302 | 303 | 304 | 305 | 306 | 307 | 308 | 309 |
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| 314 | 315 | 316 | 317 |
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| 320 | 321 | 322 | 323 | 324 | 325 | 326 | 327 |
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| 334 | 335 |
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| 52 |
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| CO |
voltageMax.and currentMax. 250V,0.1A:AC |
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| CO | |
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| 51 | 51 | 51 |
| CH | CO | CT |
:Wiring the terminal 330 and 333.
(4)Continuous signal of DC/AC 24V for start & stop.
:Wiring the terminal 330 and 332.(Those terminals are
:Wiring the terminal 330 and 332.(Those terminals are
:Wiring the terminal 331 and 332.(Those terminals are
Terminal strips in the control panel
171 | 171 | 171 |
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| COM |
L | 52 | 52 | 52 | L |
CH | CO | F |
Answer back indication | Chilled/hot water pump | Cooling water pump | Ventilation fan | Remote signal indication |
Symbols
L :Indication lamp
51CH:Chilled/hot water pump overcurrent relay 51CO:Cooling water pump overcurrent relay
52
CT L
Cooling tower fan | Cooling mode indication |
LL L LL
Heating mode indication | Alarm indication | Operation indication Stop indication | Buzzer signal indication |
51CT :Cooling tower fan overcurrent relay 23CO:Cooling tower fan thermostat
L
Combustion indication
330 | 333 | 332 | 330 | 331 | 333 | 332 | 330 | 331 | 333 | 332 | 330 | 332 | 330 | 331 | 332 |
| A |
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| A | A |
| A |
| B |
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4Y |
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| 4Y | 4Y |
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| 4Y |
| 4Y |
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1 |
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| 1 | 2 |
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| 2 |
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| DC/AC 24V | DC/AC 24V |
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| (1) |
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| (3) |
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| (5) |
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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 52F(interlock) between terminals 171 and 138.
5.Be sure to wire the chilled/hot water pump control relay between terminals 302 and 303. 6.Be sure to wire the cooling water pump control relay between terminals 304 and 305. 7.Be sure to wire the ventilation fan between terminals 306 and 307.
34 | 35 |
