Electrical Data
GUIDE
1.0GENERAL
1.1Summary
These specifications describe requirements for an environmental control system. The system shall be designed to maintain temperature and relative humidity conditions within the room. The manufac- turer shall design and furnish all equipment to be fully compatible with heat dissipation require- ments of the site.
1.2Design Requirements
The environmental control system shall be a Liebert Challenger ITR
Each system shall be capable of handling ____ CFM (CMH) at ____inches (mm) of water external
static pressure with a horizontal airflow pattern. It shall have a total cooling capacity of ____ BTU/HR
(kW), sensible cooling capacity of ____ BTU/HR (kW), based on the entering air condition of °F (°C)
dry bulb, and ____ °F (°C) wet bulb. These units are to be supplied with ____ Volt, ____ phase, ____ Hz
power supply. The humidifier shall have a capacity of ____ lbs/hr (kg/h). Reheat shall have a capacity
of _____ BTU/HR (kW). The main fan shall be ____ hp (kW).
1.3Submittals
Submittals shall be provided with the proposal and shall include:
2.0PRODUCT
2.1All Systems
2.1.1Cabinet and Frame Construction
The frame shall be constructed of MIG welded tubular and formed steel. All frame components shall be finished in a black,
20 gauge steel and shall be powder coated with ____ color paint. The panels shall be insulated with a minimum 1 in. (25.4mm),
The cabinet shall be designed so that all components are serviceable and removable from the front and rear of the unit.
2.1.2Fan and Motor Section
The fan shall be the centrifugal type, double width, double inlet. The shaft shall be heavy duty steel with
The fan motor shall be 1750 RPM and mounted on an adjustable base. The drive package shall be sized for 200% of the fan motor horsepower, and equipped with an adjustable motor pulley. The fan/motor assembly shall be mounted on (vibration isolators) (solid base). The fan shall be located to draw air over the coil to ensure even air distribution and maximum coil performance.
High Efficiency Motor (Optional)
The fan motor shall be a ____ hp (kW) high efficiency motor with a full load efficiency of ____ %.
2.1.3Filter
The filter shall be____ inches (mm) thick and rated not less than _____ % (20%, 30%,
Prefilter (Optional)
The prefilter shall be 2 in. (50.8mm) thick with an efficiency of 20% based on ASHRAE 52.1.
52