Emerson Autochangeover Controllers AC8 - Manual (Page 19)

Installation
11
2.4 Connect Power to the AC8
The AC8 must be supplied with 115VAC or 230VAC; the power supplied must match the rating of the
unit’s Transformer Module. For information, consult your local dealer, Liebert representative or the
Liebert Worldwide Support Group.
The AC8 must be installed on a branch circuit protected by a certified 15A overcurrent device.
2.4.1 Termination and Mounting
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 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.
!
WARNING
Check that power is removed from wires prior to installation.
!
CAUTION
The AC8 is designed for use on properly grounded (earthed) 115VAC or 230VAC power, 60Hz
or 50Hz. The ground wire for the power lead must be wired to the earth ground terminal (stud
located next to the 24VAC terminal block).
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 (earthed) connections to ensure compliance with technical standards and national
and local electrical codes.
!
WARNING
Be sure that the Power On/Off switch is set to OFF before installing any wiring to this unit.
The switch is in the top left corner of the unit, just below the battery pack.
!
WARNING
Be sure that the Power On/Off switch is set to OFF before installing any wiring to this unit.
The switch is at the bottom of the unit.
TM115 TM230 Connection Type
White wire Neutral (L2) Neutral
Black wire Line (L1) Power (Line)
Green wire Ground lead Ground