DHS/DHW


CENTRIFUGAL DOOR HEATER

  • High velocity air flow when door is opened

  • Available in steam and hot water models

  • Dual use steam and hot water units for space heating

  • Rugged galvanized steel construction

  • Package design arrives complete on the job site

 

DH-SHS/SHW

 

PROPELLER FAN DOOR HEATER

  • Steam, hot water operation

  • Heavy duty industrial design

  • Direct or belt drive in twelve different sizes

  • Dual use units for space heating

  • Belt drive available on larger units

 

 

HIGH LEVEL CIRCULATOR 

 

PROPELLER FAN CIRCULATOR

  • Heavy duty industrial design

  • Various mounting heights

  • Fixed or revolving discharges

  • Direct drive fans

  • Outside air ventilation optimum when used with a mixing box and roof mounted intake hood.  

 

RANGE OF SIZES
Two  models  6,500 to 12,000 CFM.

Casing is heavy-gauge galvanized steel 14 ga bottom, 18 ga sides. Coli:5/8" copper tubing with aluminum fins. Fans: DWDI belt driven "AMCA" rated.

PERFORMANCE AND CONSTRUCTION FEATURES
Control Air's DOOR HEATERS are unitary, centrifugal fan units designed to provide a high velocity warm air stream across open doors to control cold air infiltration to the working areas. Each unit has an adjustable vane discharge to allow the air flow to spread across the door opening; the high-velocity stream blocks the cold air and tempers any air which infiltrates due to negative plant air.

Units are available for use on steam or hot water; each provides instant heat when the door opens. The units can be equipped with an adjustable area discharge to provide heat to the space in response to a room thermostat.

Units are available with motor starter and control, completely wired, and are fabricated of heavy gauge galvanized steel to assure long years of trouble free use.

 

 

 

 

 

RANGE OF SIZES
12 models from 2,000 to 27,000 CFM

PERFORMANCE AND CONSTRUCTION FEATURES

Control Air's DOOR HEATERS are of heavy-duty, industrial design. Casings and discharges are of heavy-gauge galvanized steel with galvanized angle corner members for hanging. Fans are aluminum airfoil design with heavy-gauge steel venturi and tubular motor support arms.

Motors are totally enclosed with pre-lubricated, sealed ball bearings for minimum maintenance. The fan is mounted and keyed directly to the motor shaft.

The standard heating surface of 5/8" OD, .035" wall copper tubing, properly pitched for drainage, and with aluminum fins with full collars and end supports mechanically bonded to the tubes at 10 fins per inch. Each tube is individually silver brazed to schedule 40 steel pipe headers which are free to move within the casing in such a way that the tubes may expand and contract without interference.

Each heater surface is adjusted according to the specification so coverage is correct when operating on higher steam pressure.

 

 

 

 

 

 


RANGE OF SIZES
8 models from 4,000 to 30,000 CFM for vertical air flow.

PERFORMANCE AND CONSTRUCTION FEATURES

Control Air's Ventilators are of heavy-duty, industrial design. Galvanized steel with galvanized corner members for hanging. Fans are aluminum airfoil design with heavy-gauge steel venturi and tubular motor support arms. Motors are totally enclosed with pre-lubricated, sealed ball bearings keyed directly to the motor shaft

Units are available for various mounting heights with either fixed or revolving discharges to allow for specified floor area coverage.

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