Filter
Top Products
7
bottom up, starting with the heavier units. Leave
available space (if any) at the top of the
enclosure.
CAUTION: To avoid tipping the unit when it is
being moved, push slowly on the lower part of
the enclosure. After customer equipment is
installed, the Little Glass House may have a
high center of gravity.
The LGH can support an electrical load based
on the UPS capacity. For integrated/matched
models, the Environmental Control Module is
normally sized to match the capacity of the UPS
plus heat transmitted into the enclosure. A
larger UPS can be supplied for longer battery
time. For 60 Hz units without a UPS, the
customer specifies maximum Amp load to
determine proper NEMA power plug rating.
NOTE: To charge the UPS batteries before
using the unit, you can apply power to the UPS
module while you are installing your equipment.
Install your critical equipment in the Little Glass
House. Use the two vertical channels at the rear
of the unit for routing customer wiring. Power
and communication wiring should be kept
separate as much as possible.
The optional power strip includes a circuit
breaker. The 60 Hz model includes 10 5-15R 15
Amp, 120 V~ receptacles/sockets. The 50 Hz
model includes 10 CEE22 (IEC320) 10 Amp,
250 V~ receptacles/sockets. The power strip is
protected by the UPS if a UPS is included. As
viewed from the rear, the ten power outlets are
on the right side. Power wiring is intended to be
routed on the right. Communication and control
wiring should be routed to the left side.
Provide enough length on customer supplied
cables to allow unit to be rolled forward for rear
access. Remember to connect a cable to the
Little Glass House alarm contacts if required for
your installation. Route customer wiring through
the two horizontal cable entrance raceways. An
optional internal cable management raceway
(vertical) is available.
START-UP
Before applying power, make sure the computer
equipment and power switches are in the OFF
position. Plug the Little Glass House power
cable into the customer provided
receptacles/sockets. Be certain there are no
obstructions (such as wires, conduit, or trash) to
the front or sides of the ECM. Make sure all
doors shut and seal properly. Roll the unit into
final position according to the location section on
page 4. If heat rejection duct option is included,
be sure there are no loops or kinks in the duct.
Turn on the Environmental Control Module
(ECM), or Forced Air Cooling system (FAC).
Then turn on the UPS, if included. If UPS status
indication is normal, turn on your computer and
network equipment. The UPS will immediately
supply regulated power. Battery back-up will be
available after batteries are fully charged.
The 60Hz Environmental Control Module has a
lighted power switch. The power switch for the
50 Hz models is the circuit breaker “B" on the
electric service assembly. ECM temperature
and capacity controls, including hot gas bypass,
are factory set. The FAC models have a
temperature switch factory set at 80°F (27°C),
which measures air entering the unit. The front
air filter requires periodic cleaning.
CAUTION: To avoid excessive condensation,
turn off the Environmental Control Module any
time an LGH door will be open for more than 15
minutes.
The UPS module has user friendly controls and
indicators. Refer to separate UPS manual for
details of UPS operation and LED indicators.
CAUTION: To maintain UPS battery capacity, do
not store Little Glass House for more than 6
months without applying power.
Call your Liebert supplier if you have any
questions or problems during the installation or
operation of your Little Glass House.