Motormaster® Low Ambient Controller for Residential Split-System Applications 208/230Vac, Single Phase

FEATURES

Part number KSALA1001AAA is rated for 208/230-1-60 which can be used on units that are 208/230 single or 3 phase.

The MotorMaster is a fan speed control device activated by a temperature sensor. It is specifically designed to control condenser fan motor speed in response to the saturated condensing temperature during operation in cooling mode only. For outdoor temperatures down to -10°F (-23.3°C), it maintains condensing temperature at 100°F ± 10°F.

The mounting control consists of a solid-state circuit on a printed circuit board in an aluminum extrusion, and a sensor assembly to be mounted to a return bend on the unit’s condenser coil. A wire from the sensor is connected to the circuit board in the control box.

Parts necessary for mounting control and sensor assembly are included in the kit. Either assembly can be replaced independently of the other. If any damage to the printed circuit board or components is observed when unpacking control assembly, return for replacement. The MotorMaster maintains proper condensing temperature at any ambient temperature down to -20°F (-28.9°C). No field adjustments or calibrations are required.

The following must be observed
• If special fan motors or other accessories are required, install where necessary.
• Measure unit power supply voltage. It must meet minimum voltage specified on unit rating plate and match voltage rating of MotorMaster.
• Make sure all units are modified for winter start control when needed.
• Check that control location is as specified.
• Check that sensor location is as specified.
• Make sure that sensor wiring routing is as specified.
• Make sure wind baffles are installed only if required.
• For heat pump units, make sure isolation relay is available.