Piggyback Condenser (Optional)
The system shall be supplied with a piggyback con- denser (PB). The condenser shall be constructed of steel with frame coated using the autophoretic® pro- cess, and panels powder coated to protect against corrosion. The coil shall be copper tube with alumi- num fins. 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 Liebert
3 phase, _____ Hz power supply.
Centrifugal Fan Condenser (Optional)
The system shall be supplied with a centrifugal fan condenser (LCC). The condenser 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 Liebert Lee- Temp head pressure control system shall be field piped to the unit. Elec- trical controls shall be in a
The system shall be designed for _____ °F (°C) ambi-
ent. The air cooled condenser shall have a _____ Volt,
3 phase, _____ Hz power supply.
The water/glycol system shall be equipped with a coax- ial condenser having a total pressure drop of _____ ft.
of water (kPa) and a flow rate of _____ GPM (l/s) with
_____ °F (°C) entering water/glycol temperature.
The condenser circuit shall be
The condenser circuit shall be
Design Pressure
The condenser water/glycol circuit shall be designed for a pressure of [(150 PSI (1034 kPa)) (350 PSI (2413 kPa))].
Crankcase Heater (Optional)
A crankcase heater is provided to prevent the migra- tion of refrigerant to the compressor during off cycles.
Hot Gas Reheat (Optional)
The complete hot gas reheat system shall include a copper tube, aluminum fin coil,
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, dou- ble 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
_____ Volt, 3 phase, _____ Hz power supply.
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).
GLYCOOL Coil
The GLYCOOL coil shall be constructed of copper tubes and aluminum fins and be located upstream of the evaporator coil. The GLYCOOL coil shall be designed for
_____ BTU/HR (kW) sensible cooling capacity with a
45°F (7.2°C) entering glycol solution temperature. The GLYCOOL coil shall require _____ GPM (l/s) and
the total unit pressure drop shall not exceed _____
feet of water (kPa) when in the free cooling mode.
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