Installation
2.4.2Input and Output Power Connections - Large Enclosure
! CAUTION
The 115VAC/230VAC Transformer Module must be connected to a branch circuit with 15A branch circuit protection.
This equipment is intended to be installed by a qualified and certified electrician who must review and approve customer supplied wiring and circuit breakers, verify correct input and grounded connections to ensure compliance with the technical standards and national and local electrical codes.
The Transformer Module shall be used only as indicated by the manufacturer.
! WARNING
Be sure that the power wiring is disconnected from the
Input Power Connections
To connect electrical power to the Transformer Module:
1. | Install electrical wiring from utility power to the Transformer Module. | ||||
2. | Use copper wires only; proper wiring to use for power is 14/2 AWG copper wire with ground. | ||||
3. | For the TM230 only: strip wires 3/8" (9.6mm). | ||||
| Note: For the TM115, wires are | ||||
4. | Connect the wiring as follows: |
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| TM115 | TM230 |
| Connection Type |
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| White wire | Neutral (L2) |
| Neutral |
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| Black wire | Line (L1) |
| Power (Line) |
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| Green wire | Ground lead |
| Ground |
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5. | Secure the incoming electrical service wires to the TM115 input wires with wire nuts as shown in | ||||
| Figure 6 or to the TM230 connectors as shown in Figure 7. | ||||
24 VAC Output Power Connections
To connect to the 24VAC outputs:
1.Install electrical wiring from device requiring 24VAC power to the Transformer Module.
2.Use copper wire only; proper wiring to use for power is 18, 20 or 22 AWG copper wire. Strip wire 1/4".
3.There are two 24 VAC output connectors (TB1 and TB2). Terminate wires to the connector as shown in Figures 6 and 7. TB1 and TB2 are NOT polarity sensitive.
4.Secure the wires to the connector.
Figure 6 Power wiring to TM115 | Figure 7 Power wiring to TM230 |
TM115 | TM230 |
Wire nuts connecting electrical wiring
Knockout for | Knockout for |
external wiring | external wiring |
Ground | Ground |
Neutral | Line (L1) |
(L2) |
|
24VAC output | 24VAC output |
(TB1) | (TB1) |
Troubleshooting - Transformer Module
A common problem and possible solution are shown in the table below. For further information or if you have other problems with the unit, consult your local dealer, Liebert representative or the Liebert Worldwide Support Group.
Problem | Possible Solution | Replacement Fuse Part Numbers |
24VAC power not available | Check fuse for respective | • LITTLEFUSE 218002 |
from TB1 or TB2 | output (TB1 or TB2). | • BUSSMANN |
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