user manual
A co-axial condenser provides ample capacity to han-
dle the heat rejection needs of the system while using
a minimum of liquid and low total pressure drop.
Head pressure operated regulating valves accurately
control the condensing temperature and maintain
system capacity for various entering liquid flow rates
and temperatures. Two-way valves with bypass are
standard.
Three-way valves provide accurate control of con-
densing temperature and thus maintain constant
system capacity while also keeping the condenser
water flow rate constant.
The high pressure option for the condenser circuit
consists of a regulating valve and a condenser rated
at 350 psig (2413 kPa) water-pressure. This option is
required in applications with large static head pres-
sures.
A compressor crankcase heater is available to pre-
vent the migration of refrigerant to the compressor
during off cycles.
The hot gas reheat assembly consists of a 3-way
directional solenoid operated valve and a hot gas
reclaim coil.
Factory charged and sealed, the water cooled con-
densing unit is ready to be installed quickly and eas-
ily. The counter-flow coaxial condenser with two-way
or three-way regulating valve designed for 150 psi
(1034.3 kPa) is matched to the heat rejection require-
ments of the compressor for a variety of flow rates
and fluid temperatures.
Condensing unit has a hot gas bypass standard fea-
ture that bypasses hot gas around the compressor
directly to the suction side of the compressor to pro-
vide capacity control and reduce compressor cycling.
System includes liquid injection valve to maintain
proper suction superheat.
The high pressure option for the condenser circuit
consists of a 2-way or 3-way water regulating valve
and condenser rated at 350 psig (2413 kPa) water
pressure. This option is required in applications with
large static heads.
Allows unit to be turned off for maintenance. Discon-
nect switch is available on indoor condensing units
only.
Consists of one pre-charged liquid line and one pre-
charged insulated suction line of soft copper tubing.
Each line has one male quick-connect coupling and
one female quick-connect coupling with an access
valve connection.
Available in 15 ft. (4.6m) and 30 ft. (9.1m) lengths for
interconnection of remote located condenser module.
Maximum recommended distance between evapora-
tor and condenser with pre-charged line sets is 45 ft.
(13.7m). For longer runs, use sweat adapter kit.
(3 ton only) - contains two suction and two liquid line
compatible fittings that allow field-supplied intercon-
necting refrigerant lines to be used.
The Liebert manufactured Fan Speed Control dry-
cooler is constructed of aluminum and features cop-
per tubes and aluminum fin design. It is low profile,
propeller fan type and provides quiet, trouble free
heat rejection. The drycooler features a variable
speed fan motor and a specially engineered solid
state fan speed transducer. The transducer senses
the temperature of the leaving glycol and modulates
the speed of the fan to maintain proper glycol tem-
peratures. An integral, factory-wired and tested con-
trol panel reduces installation time.
The glycol system includes a matching centrifugal
glycol pump. It is mounted in a vented, weatherproof
enclosure.
Optional Equipment—See page 13.
DISCONTINUED
PRODUC T