Specifications

MODULAR DATA TEMP SERIES

8, 10, 13 ton DX Units

Guide Speciﬁ cations

GENERAL

The environmental control units shall be provided with a high sensible cooling system, factory assembled, piped, wired, and run

tested prior to shipment and designed for the following air pattern:

___ Down Discharge

___ Top Discharge for Duct Connection

___ Top Discharge with Plenum

The system shall be designed for draw through air arrangement to insure even air distribution to the entire face of the coil.

Units shall be ETL or UL listed.

CABINET and FRAME

The frame shall be constructed of 14 gauge welded tubular steel and coated with a heavy corrosion inhibiting ﬁ nish for long life.

All internal fans shall be of high grade steel and shall be coated and sealed for utmost protection against corrosion. The unit shall

have complete front and side access by means of high quality furniture grade steel doors with heavy duty hinges. The door shall

be lined with one inch (1”), 1-1/2 pound density ﬁ berglass insulation. Each door shall be provided with sure close latches which

shall be quickly removable for easy access and a polyurethane gasket to prevent air leakage. The doors shall be painted to match

or contrast with other equipment in the space. Bypass air shall be provided around the cooling coil to prevent saturated air from

being distributed to equipment in the controlled space. The cooling coil shall sit in a stainless steel drain pan.

The unit shall be painted ______________________.

( color )

REFRIGERATION CIRCUIT

Air Cooled with Remote Outdoor Condenser - The refrigeration system shall be split type with an indoor evaporator section and

remote outdoor condenser. The indoor evaporator section shall include the cooling coil, compressor, humidiﬁ er, reheat, ﬁ lters and

controls. The cooling coil shall be in an “A” frame arrangement to allow maximum coil surface in a small cabinet. The large faced

area coil shall be constructed with

/2” O.D. copper tube with 12 ﬁ ns per inch of corrugated aluminum for maximum heat transfer.

Maximum face velocity shall be less than 500 feet per minute. The expansion valve shall be of the adjustable thermostatic type

with external equalization. The compressor shall be hermetic scroll type, with complete overload protection on all three power

lines, internal thermostat for winding protection, crankcase heater, sight-glass and low pressure override timer for positive starting

at low temperatures. The ﬁ lter drier shall be of the ﬂ are ﬁ tting type for non-torch servicing. The circuit shall contain high and

low pressure safety switches. The high and low pressure safety switches shall be installed with shraeder type ﬁ ttings with valve

core.

Each system shall include a low proﬁ le, slow speed, direct drive propeller fan type air cooled condenser. The air discharge shall be

vertical to minimize the effects of wind blowing through the coil at low ambient temperatures. The condenser shall be constructed

of aluminum and contain a

/2” O.D. copper tube coil with corrugated aluminum ﬁ ns for maximum heat transfer. The condenser

shall have fan speed control with transducers to modulate the speed of the ﬁ rst condenser fan motor and provide positive start-up

and operation at ambient temperatures to -20° F. Additional condenser fan motors are to be controlled by ambient thermostats.

All controls including the fan speed control shall be factory mounted in the air cooled condenser in an integral factory wired and

tested control panel. The air cooled condenser shall be manufactured by the manufacturer of the indoor unit.

GUIDE SPECIFICATIONS