Data Aire DAFC-07 Especificaciones descargar pdf (Pagina 7)

FRAME AND CABINET

The heliarc welded tubular steel frame provides for maximum

strength and ease of access. Side and front panels can be eas-

ily opened and removed with quarter-turn fasteners allowing

full access to all unit components. All panels include one inch

thick, 1-1/2 pound density insulation for protection and sound

attenuation.

COIL SECTION

Designed for draw through application, the computer selected

coil offers greater efﬁ ciency in the cooling and dehumidiﬁ cation

process. Air bypass is provided to prevent saturated air from

being introduced into the controlled space. The coil section is

provided with a stainless steel drain pan.

FAN SECTION

The gForce GT unit comes equipped with a backward curved

plenum fan with EC motor. The integrated motor and fan

package provides the most efﬁ cient operation and are basically

maintenance free. While using standard AC power the plenum

fan or plug fan converts AC current to DC to power

ELECTRIC REHEAT

Low-watt density ﬁ nned tubular sheathed coils provide ample

capacity to maintain room dry bulb conditions during a call

for dehumidiﬁ cation. Low-watt density coils eliminate ioniza-

tion associated with open air electric resistance heating. Three

stages of reheat are standard.

HUMIDIFICATION

gForce GT units include an electric steam generator humidiﬁ er

with a “quick change” disposable cylinder and an auto-ﬂ ush

cycle. The steam generator humidiﬁ er with its patented con-

trol system optimizes cylinder life and energy efﬁ ciency by

concentrating incoming water to a predetermined conductivity

much higher than that of the entering water. The control system

continuously monitors the conductivity in the cylinder through

its electronics which allows water to be ﬂ ushed as often as is

necessary to maintain the capacity at this design conductivity.

The high design conductivity results in a minimum ﬂ ushing

of heated water, thereby saving energy. The humidiﬁ er is

designed to allow units at any voltage to produce full rated

steam output at an optimum water level based on the design

conductivity.

COMPRESSORIZED SYSTEMS

The single stage refrigeration circuit includes a hermetic scroll

type compressor. These durable, heavy duty, fully welded

compressors have no gaskets or seals, eliminating the possi-

bility of refrigerant or oil leaking into the controlled space or

environment. Scroll compressors also bring a combination of

reliability, efﬁ ciency, and improved system sound performance.

The refrigeration circuit includes built-in compressor overload

protection, crankcase heater, ﬁ lter drier, sight-glass, adjustable

expansion valve with external equalizer, low pressure override

timer (air cooled units), manual reset high pressure control, and

compressor short cycle timer.

Water/glycol cooled units include a counterﬂ ow plate-ﬁ n con-

denser sized to provide the required capacity for heat rejection

with minimum water/glycol ﬂ ow and low total pressure drop.

Head pressure regulating valves control the condensing tem-

perature and maintain required capacity at various water/glycol

ﬂ ow rates and temperatures.

Air Cooled with Remote Outdoor Condenser - A wide range

of outdoor condensers are available. Condensers are manu-

factured by Data Aire and sized to meet the heat rejection and

ambient conditions as required. The industrial duty design in-

cludes aluminum corrosion resistant housing, aluminum ﬁ nned

copper tube coils, coated fan guards, energy efﬁ cient thermally

protected direct drive motors, and variable fan speed control on

lead fan motor for proper control down to -20° F. Additional

fan motors are controlled with ambient thermostats.

Air Cooled with Indoor Condenser - A wide range of ﬂ oor

mounted indoor condensers with horizontal intake and dis-

charge are available for applications where an outdoor con-

denser cannot be used. Units include a forward curved, double

width, double inlet blower engineered for quiet, reliable opera-

tion. The belt driven variable pitch drive provides adjustable air

ﬂ ow. Indoor condensers are provided with a factory mounted

and piped receiver. The receiver has a head pressure control

valve to maintain ﬂ ooded condenser control.

Air Cooled with Outdoor Condensing Unit - gForce GT units

are also available with remote outdoor condensing units. The

condensing unit includes a hermetic scroll compressor with

built-in overload protection, crankcase heater, ﬁ lter drier, sight-

glass, and condenser coil. The coil is constructed with copper

tubes and aluminum ﬁ ns. The housing is aluminum with verti-

cal air discharge. The condenser fan is a variable speed type for

head pressure control down to -20° F.

Water/Glycol Cooled with Remote Outdoor Dry Cooler - Re-

mote outdoor dry coolers are available in a variety of sizes.

Each dry cooler includes aluminum corrosion resistant housing,

aluminum ﬁ nned copper tube coil, coated fan guards, surge

tank, pump contactor, and energy efﬁ cient thermally protected

direct drive motors. Fan cycling is controlled by water sensing

thermostats on dry coolers with more than one fan.

DESIGN FEATURES

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Data Aire DAFC-07 Especificaciones Pagina 7

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