5-Ton Models
The fan/motor assembly shall be belt drive. Condens- ing unit must be hard piped with the evaporator. Sweat adapters are shipped loose with all 5 ton evap- orators for use on the 5 ton condensing units.
The condenser coil shall be constructed of copper tubes and aluminum fins with a direct drive propel- ler type fan and shall include a scroll compressor, high pressure switch,
A hot gas bypass circuit shall be provided to reduce compressor cycling and improve operation under low load conditions.
(Optional)
The condensing unit shall be designed to operate at a sound level less then 58 dBa.
(Optional) High Ambient Models
The outdoor condensing unit shall be designed for design ambient operation of 105°F (40.6°C).
The condensing module shall be capable of being con- nected to the evaporator section using
Condensing unit must be hard piped with the evapo- rator. Sweat adapters are shipped loose with all 5 ton evaporators for use on the 5 ton condensing units.
Water or Glycol Cooled Condensing Unit
The water/glycol condensing unit shall be equipped with a coaxial condenser having a total system pres- sure drop of _____ ft. of water (kPa) and a flow rate of
_____ GPM (l/s) with _____ °F (°C) entering water/
glycol temperature.
Components shall include scroll compressor and
The condenser circuit shall be
The condenser water/glycol circuit shall be designed for a static operating pressure of [(150 PSI
(1034 kPa)) (350 PSI (2413 kPa))].
A hot gas bypass circuit shall be provided to reduce compressor cycling and improve operation under low load conditions.
(Optional) Disconnect
Factory installed
The condensing module shall be capable of being con- nected to the evaporator section using
Condensing unit must be hard piped with the evapo- rator. Sweat adapters are shipped loose with all
5 ton evaporators for use on the 5 ton condensing units.
Propeller Fan Drycooler (Standard)
The Liebert manufactured drycooler shall be the low profile, slow speed, direct drive propeller fan type. The drycooler shall be constructed of aluminum and contain a copper tube aluminum fin coil with an inte- gral electric control panel. The drycooler shall be designed for _____ °F (°C) ambient.
Centrifugal Fan Drycooler (Optional)
The system shall be supplied with a centrifugal fan drycooler (LCD). The drycooler shall be constructed of galvanized steel with a copper tube, aluminum fin coil. The heavy duty fan shall be the centrifugal type, double width, double inlet. The 1750 RPM (1450 RPM
@50 Hz) fan motor shall be mounted on an adjustable base, and equipped with an adjustable motor pulley. A 3- way control valve and thermostat shall maintain the desired fluid temperature. Electrical controls shall be in a rain tight enclosure. The system shall be designed for _____ °F (°C) ambient. The drycooler shall have a _____ Volt, 3 phase, _____ Hz power sup- ply.
Single Glycol Pump Package (Standard)
This system shall be provided with a centrifugal pump mounted in a weatherproof and vented enclo- sure. The pump shall be rated for GPM (l/s) at
_____ ft. of head (kPa), and operate on _____ Volt,
3 phase, _____ Hz.
Dual Glycol Pump Package (Optional)
The dual pump package shall include pumps, enclo- sure, and field mounted flow switch. The pumps shall be wired to the drycooler control box which includes a lead/lag switch for the pumps. The standby pump shall automatically start upon failure of the lead pump. Each pump shall be rated for
_____ GPM (l/s) at _____ feet of head (kPa).
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