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| Site Preparation and Installation | |
Figure 11 | Evaporator unit electrical connections |
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| Customer Remote Alarm |
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| Connection TB50,51,56,24. |
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| Field supplied 24V Class 2 |
Earth Ground Connection |
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| wiring. | |
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Connection terminal for field |
| Common Alarm Connection. |
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supplied earth grounding wire. |
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High Volt Power Connections | Optional factory installed | Use field supplied 24V |
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Class 2 wire. |
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Electric service connection terminals. | disconnect switch. | Drycooler/Circulating Pump Control |
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| Circuit |
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| Use field supplied 24V class 2 wire. |
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| Optional Condensate Pump |
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| Auxiliary Float Switch Shut |
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| Down Connection |
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| 1 | 60 | 24 |
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| 2 | 61 | 50 |
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| 3 | 70 | 51 |
Microprocessor |
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| 4 | 71 | 56 | |
FRONT OF UNIT |
| 5 | 75 | 11 | ||
Board |
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| 6 | 76 | 12 | |
| Remote Control Panel Connection to |
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| 7 | 77 |
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| 8 | 78 |
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| Thermostat wire (22ga, shielded/jacketed: |
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| available from Liebert or others). |
| 9 | 84 |
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| Heat Rejection Connection. Field supplied | 10 | 85 |
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| 37 | 38 |
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| 24V NEC Class 2 wiring |
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Optional Remote Sensor | Remote Unit Shutdown. Use field supplied |
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24V Class 2 wire. Replace existing jumper |
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Connection |
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| Remote Humidifier Contact | |||||
between TB37 & TB38 with NC switch |
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| having a minimum 75 VA rating. |
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| Field Supplied 24V class 2 | ||||
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| Site Monitoring Connection. |
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| wiring to terminals 11 & 12, | |
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| located in field wire | ||
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| Terminals TB78 (+) TB77 |
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Field supplied unit disconnect switch |
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| compartment. | |||||||
| connection of a 2 wire, twisted pair, |
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when factory unit disconnect switch |
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| communication cable to optional |
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| Optional Main Fan Auxilary | ||||
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is not supplied. |
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| Electric service |
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| sitescan. |
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| Side Switch | ||||||
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Entrance for customer high |
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| not by Liebert |
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| Field supplied 24V Class 2 | ||
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| wire. | |
volt connections. |
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| NOTES: | |||
Electrical entrance for |
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| 1. Refer to specification sheet for | |||
optional condensate |
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| full load amp. and wire size amp. | ||
pump on left side of unit. |
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| ratings. | ||
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| 2. Control voltage wiring must be a | ||
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| minimum of 16 GA (1.6mm) for up | ||
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| to 75’ (23m) or not to exceed 1 volt | ||
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| drop in control line. | ||
Optional Single |
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Point Power Kit |
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| Field supplied, field wired thermostat wire to remote wall box. | ||
Entrance for customer low | Entrance for customer low voltage connections |
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Field supplied 24V (NEC Class2 wiring) to condensing unit. (if applicable) | DPN000244_Rev0 | ||
voltage connections. | |||
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