115V Digital Control and Thermostat Retrofit Kit for MasterCool Plus and Contractor’s Series

Retrofit control and digital thermostat kit configured for 115V evaporative cooler applications. For MasterCool Plus and MasterCool Contractor’s Series systems. Uses Dial control reference 7624.

Specifications and Included Parts

• Control box for mounting outside the cooler.
• Interior plug/receptacle box with wire leads.
• 115V motor cord.
• Indoor digital thermostat.

Operating Features

• Backlit digital display and separate outdoor controller enclosure.
• Automatic temperature-based start and stop.
• Automatic pad pre-wetting and high/low fan-speed adjustment.
• Listed application range: 2-speed, 1/3–1 HP cooler motors.
• 2-, 4- or 8-hour timer options.
• Optional timed dump/purge function using an extra standard cooler pump.
• UL Listed control.

Compatibility and Installation

Replaces the interior control box and thermostat combination used in listed MasterCool applications, including P225101A, P225102A, P218301A and P218601A.

Additional listed replacement reference: RK301A.

Rewiring between the new receptacle box and the control box is required. This is not a plug-in conversion. Installation difficulty is listed as medium. Disconnect all power and read the complete installation instructions before work begins.

Match the supplied control model, motor and pump load limits, and system voltage before installation.

Contractor’s Series Purge-Pump Option

To retain the purge-pump function with a standard pump, an additional 115V pump receptacle may be needed for the installation. See the pump receptacle option below. An extra pump for the optional dump function is not listed as included.

Instructions and Related Parts

• You can read the control box and thermostat owner's/installation manual here.
• Wiring schematic for 115 volt
• 115 volt pump receptacle.

Catalog reference: 7623KIT115