Options and Accessories for XDGK/XKG/XDGX

  XDGK XDG XDGX
Intake Options

Birdscreen Weatherhood

-

Optional

Optional

Filtered Weatherhood

Optional

Optional

Optional

Louvered Weatherhood

-

Optional

Optional

Temperature Controls

Discharge Temperature Control

Standard

Optional

Optional

Discharge Temperature Control w/ Room Override

-

Optional

Optional

DCC Room Interface Control

-

-

Optional

Discharge Options

Downblast Discharge

Optional

Optional

Optional

Horizontal Discharge

Optional

Optional

Optional

Upblast Discharge

-

-

Optional

Combination Package

-

Optional

Optional

Evaporative

-

Optional

Optional

Direct Expansion (DX)

-

-

Optional

Chilled Water

-

-

Optional

Accessories

Special Coatings

Optional

Optional

Optional

Roof Curbs

Optional

Optional

Optional

Duct Adapter

Optional

Optional

Optional

V-Bank Filter Section

-

Optional

Optional

Fiberglass Insulation

Optional

Optional

Optional

Double Wall Construction

-

Optional

Optional

Exhaust Fan Starter(s)

-

Optional

Optional

Air Filter Gauge

-

Optional

Optional

Freeze Protection

-

Optional

Optional

Inlet Air Sensor – Heat

Optional

Optional

Optional

Service Receptacle

-

-

Optional

Auxiliary Contacts

-

Optional

Optional

Intake Dampers

Optional

Optional

Optional

Discharge Dampers

-

Optional

Optional

Gas Pressure Regulator

Optional

Optional

Optional

Propane Heater

Optional

Optional

Optional

Variable Air Volume

-

-

Optional

 

Weatherhoods with standard G90 galvanized steel construction are available:

  • Birdscreen Weatherhood - The birdscreen weatherhood features a wire mesh intake, which prevents large debris from damaging the filters. An additional filter section is required.
  • Filtered Weatherhood - The filtered weatherhood includes aluminum mesh filters mounted in the intake, eliminating the need for an additional filter section.
  • Louvered Weatherhood - The louvered weatherhood includes a louvered intake and aluminum mesh filters in a compact design that requires no additional filter section.
  • V-Bank Filter Section – A V-bank filter section is standard on units with a birdscreen weatherhood. Specify either 2-inch washable aluminum mesh filters or 2-inch disposable filters.
  • Duct Adapter – Provides easy means for attaching ductwork to curb and allows installation of top section of duct prior to setting the unit on the curb.
  • Roof Curb – Factory provided roof curbs are available to ensure compatibility between the make-up air unit and roof curb. Standard construction is G90 galvanized steel and includes 1-inch insulation.
  • Discharge Damper – A discharge damper prevents both backdrafts when the fan is not in operation and condensation inside the unit during cold weather conditions. A wide variety of backdraft and control dampers are available for field installation.

Special Coatings – Permatector™ coating is available for a durable, long lasting finish. Decorative coatings are also available in a variety of colors to match existing building fixtures. Consult your Accurex representative for coating selections.

Roof Curbs – Factory provided roof curbs are available to ensure compatibility between the make-up air unit and roof curb. Standard construction is G90 galvanized steel.

Duct Adapter – Duct adapter is available with factory supplied roof curbs. The duct adapter allows for easy alignment of the supply duct connection.

V-Bank Filter Section – V-bank filter sections are available with 2-inch washable aluminum mesh or 2-inch 30% efficient disposable filters.

Weatherhoods – Three weatherhoods are available: birdscreen, filtered, and louvered. Standard construction is G90 galvanized steel.

Motorized Dampers – Intake or discharge dampers are available to prevent backdrafts when the supply fan is not in operation. Intake dampers are factory mounted and wired. Discharge dampers ship loose for field mounting in the supply air duct.

Fiberglass Insulation – One inch fiberglass insulation is available to line the housing to prevent the formation of condensation and to form an acoustical barrier.

Double Wall Construction – An interior metal liner is available to isolate the 1-inch fiberglass insulation from the airstream.

Exhaust Fan Starter(s) – Exhaust fan starters are available factory mounted and wired. Exhaust fan starters allow for an electrical interlock between the supply and exhaust fan(s).

Freeze Protection – Electronic freeze protection is available to automatically shut down the supply fan when the discharge temperature is below the adjustable set point for an extended amount of time. This prevents the unit from discharging non-tempered air into the building and freezing pipes and other temperature sensitive items.

Inlet Air Sensor (Heat) – The heating inlet air sensor will automatically turn the heat on and off based on the outdoor air temperature.

Service Receptacle – A 115 volt GFCI outlet is mounted externally in a NEMA-3R box for the convenience of service personnel. A separate 115 volt power source is required.

Auxiliary Contacts – Normally open and normally closed contacts are available for supply fan status and supply fan interlocks.

Air Filter Gauge – Indicates when filters become dirty. An indicator light may be wall/beam mounted or provided with a remote control panel.

Propane Gas – A propane heater may be provided in lieu of natural gas.

Gas Pressure Regulator – Required if building gas line pressure exceeds the maximum inlet gas pressure of the make-up air unit. Ships separately for field installation.

Temperature Controls:

  • Discharge Temperature Control – Control of discharge air temperature is accomplished with a factory installed sensor located at the fan discharge. A Maxitrol 14 system modulates the gas valve to provide the desired discharge temperature.
  • DDC Interface – The discharge temperature can be controlled by a DDC signal. The DDC options provides a factory installed interface, allowing easy integration into your building management system. The discharge temperature can be controlled using a 2-10 VDC or 4-20 mA signal.
  • Discharge Temperature Control with Room Override – The room override option, available with the Maxitrol 14 system, boosts the discharge temperature when the space temperature is too cool. Discharge sensor is factory installed. Room sensor may be wall/beam mounted or included on a remote control panel.

Discharge Options:

  • Downblast Discharge
  • Horizontal Discharge
  • Upblast Discharge

Cooling Options

Evaporative Cooling – The optional evaporative cooling section includes a galvanized steel housing with a louvered intake, 2-inch aluminum mesh filters and a stainless steel evaporative cooling module. The evaporative cooling media is Munters GLASdek and has a depth of 12 inches for 90% cooling effectiveness.

The entire section mounts directly to the front of the unit, eliminating transition or ductwork by others. Drain and overflow are conveniently tapped through the side of the cooling section. The supply line connection is field located where convenient. Freeze protection, automatic drain & fill, and the Water Wizard™ evaporative optimizer are also available.

Cooling Coils – Chilled water or direct expansion (DX) cooling is available (XDGX only). The cooling section includes the cooling coil, sloped stainless steel drain pan and insulated double wall construction. Drain and coil connections are stubbed through the wall for convenience.

For proper coil sizing, contact your local Accurex representative. Four-row and six-row chilled water or DX coils are available with airflow capacities up to 11,000 cfm (18,689 m³/hr).

Cooling coil sections are installed upstream of the fan section for a draw through arrangement and provide a streamlined transition to adjacent sections. DX coils require remote condensing units.

 
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