4.3.3 Condensate-drain Pump Kit
WARNING! Risk of electric shock. Can cause equipment damage, injury or death. Open all local
and remote electric power supply disconnect switches and verify with a voltmeter that power is
off before working within any electric connection enclosures. Service and maintenance work
must be performed only by properly trained and qualified personnel and in accordance with
applicable regulations and manufacturers’ specifications. Opening or removing the covers to
any equipment may expose personnel to lethal voltages within the unit even when it is
apparently not operating and the input wiring is disconnected from the electrical source.
The optional condensate pump kit is required when the evaporator is installed below the level of the
gravity-fed drain line. The condensate pump is field-installed alongside the evaporator unit.
A 3/4-in. NPT-Female connection is provided for the evaporator-unit condensate drain.
• The drain is trapped internally, do not trap external to unit.
• Size the discharge piping based on the available condensate head.
The pumps are rated as follows:
• 460-V condensate pump rated for 7.5 GPM (28.4 l/m) at 10-ft head pressure. The 460-V pump
is used on units with 575-V supply power.
• 208/230-V condensate pump rated for 5.1 GPM (19.3 l/m) at 10-ft head pressure.
The installation of the condensate-drain pump is described in the submittal documents included in the
Submittal Drawings on page53.
The following tables list the relevant documents by number and title.
Document Number Title
DPN004806 Condensate-pump connection locations, 3-ton models
DPN004077 Condensate-pump connection locations, 4- and 5-ton models
Table 4.10 Condensate-drain Pump Drawings
Vertiv | Liebert® Mini-Mate™ Installer/User Guide
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