![Specifications](/images/new-backgrounds/55698/55698155x1.webp)
Mechanical |
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Specifications | Air Handlers |
General
Air handler units shall be completely factory assembled including coil, condensate drain pan, fan motor(s), filters, and controls in an insulated casing that can be applied in either vertical or horizontal configuration. Units shall be rated and tested in accordance with ARI standard 210/240, 340/360.
Casing
Unit casing shall be constructed of zinc coated, heavy gauge, galvanized steel. Exterior surfaces shall be cleaned, phosphatized, and finished with a
Refrigeration System TheTWE050A,TWE075A,TWE100A units shall have a single refrigeration circuit and theTWE050B,TWE075B,TWE100B, TWE155B,TWE200B units shall have dual refrigeration circuits. Each refrigeration circuit is controlled by a factory installed thermal expansion valve.
Evaporator Coil
Configured aluminum fin surface shall be mechanically bonded to 3/8” (10 mm) internally enhanced copper tubing and factory pressure and leak tested at 450 psig (3103 kPa). Coil is arranged for draw- thru airflow and shall provide a double sloped condensate drain pan constructed of PVC plastic.The drain pan shall be removable for cleaning.The condensate drain pan can be installed in any of four positions allowing for vertical or horizontal application and providing external connections on either side of the unit.
Evaporator Fan
Double inlet, double width, forward curved,
Controls
Magnetic evaporator fan contactor, low voltage terminal strip, check valve(s), and single point power entry shall be included. All necessary controls shall be
Filters
One inch, throwaway filters shall be standard onTWE050A, TWE075A, TWE100A andTWE100B model air handlers. Filters shall be accessible from the side coil access panel. Filter rack can be field converted to
Accessories
Electric Heaters — Approved electric heat modules shall be available for installation directly on fan discharge. Electric heaters shall be available in a wide range of capacities with one or
three phase heater shall have pilot duty with secondary backup fuse links for automatic reset of high limit controls. Each 480/600 volt heater shall have automatic line break high limit controls.
Discharge Plenums and Grilles — Accessory discharge plenums shall be available for vertical, free discharge applications. Plenums shall be constructed of
Return Air Grilles — Accessory return air grille shall be provided for vertical front, free return applications. Grilles shall be installed in place of the front lower side panel. Grille shall be satin finished aluminum with
Mounting Subbase
Vibration Isolators
Oversized Motors — Field installed oversized motors shall be available for high static pressure applications.
Control Options
Standard IndoorThermostats
Programmable Electronic Night Setback Thermostat
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