Emerson MC68HC16Z1 Manuel D’Utilisation

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 pre-stripped 0.4" (10.2mm) at the factory.

4. Connect the wiring as follows:

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.

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.

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.

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.

Be sure that the power wiring is disconnected from the Liqui-tect panel before installing any 

wiring to this unit.

White wire

Neutral (L2)

Neutral

Black wire

Line (L1)

Power (Line)

Green wire

Ground lead

Ground

24VAC power not available

from TB1 or TB2

Check fuse for respective

output (TB1 or TB2).

• LITTLEFUSE 218002

• BUSSMANN GDC-2A