User manual

Installation
Liebert
®
Liqui-tect
®
12
2.4 Connect Power to the Liebert Liqui-tect Panel
The Liebert Liqui-tect panel requires 24VAC for proper operation. Liebert recommends using the
optional Transformer Module manufactured by Liebert or another UL-approved Class 2 power unit to
obtain proper voltage. If the power unit is not a Class 2 circuit, it must be protected with an IEC
5 x 20mm time lag 2A fuse. For information, consult your local dealer, Emerson representative or the
Liebert Worldwide Support Group.
2.4.1 Input Power Connections - Small Enclosure
To connect electrical power:
1. Run conduit and electrical wiring from building to the Liebert Liqui-tect panel.
2. Use copper wires only; proper wiring to use for 24VAC power is 18-22 AWG stranded and shielded
(18 AWG is recommended—see Table 4). Strip wires 1/2".
Figure 5 Electrical connections to panel
3. Secure the incoming electrical service wires to the Liebert Liqui-tect panel’s 24VAC input by
sliding the wires into TB1, the 24VAC input terminal block. There is no polarity requirement
when connecting to TB1. The ground wire must be connected to the earth ground terminal located
on the side of the panel (see Figure 5).
!
WARNING
Check that power is removed from wires prior to installation.
!
CAUTION
The Liebert Liqui-tect panel is designed for use on properly grounded (earthed) 24VAC power,
50Hz or 60Hz. 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 wiring is disconnected from the Liebert Liqui-tect panel before
connecting any wiring to this unit.
SW3
EGND1
TVS3
TB1
FB2
R4
24V Power
Reset
24VAC input
connector
24VAC wiring
(red & white)
External wiring
through knockout
Earth ground
terminal
Ground wire
(black)