Heil - CRLOWAMB031A00 - Motormaster® V Low Ambient Control

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Motormaster® V Low Ambient Control

The Motormaster® V control is a motor speed control device which adjusts condenser fan motor speed in response to varying discharge refrigerant pressure. A properly applied Motormaster V control extends the operating range of air-conditioning systems and permits operation at lower outdoor ambient temperatures.

To operate these units at very low ambient temperatures, Motormaster V controls must be added. Field-fabricated and installed wind baffles are also required for units in areas with prevailing winds of more than 5 mph and where temperatures drop below 32°F (0°C). The Motormaster V control permits operation of the unit to an ambient temperature of –20°F (–29°C). The control regulates the speed of one 3-phase fan motor that is compatible with the control. Replacement of fan motor on most units is not necessary since the control is compatible with the factory-installed fan motors. Field wiring of control is required.

This accessory kit will allow the Motormaster V Control to be used on heat pump units (using the single 3-phase outdoor fan motor). A second relay assembly is provided as part of the heat pump adapter kit to override the Motormaster V when in heat pump mode. The second relay must be installed by the technician. For cooling units, the second relay assembly is not needed.

California residents: see Proposition 65 Warning

Features and Specification

Weight 10.000000
Brand Heil
Cubic Measurement 0.437500
Dimensional Weight 5.000000
Length 18.000000
Height 6.000000
Package Weight 10.000000
Package Width 7.000000
Width 7.000000
UPC See Optical
Package Length 18.000000
Package Height 6.000000

Parts List