The White-Rodgers 21D28-6 evaporative cooling kit is a thermostat with transformer relay control panel. It works as a switching device to hold an even level of cooling.
Select high or low fan speed on evaporative coolers. Separate fan and pump relays sit in a lightweight weather-resistant plastic case.
21D28-6 Features
Complete Kit
Includes thermostat and transformer relay control panel.
High / Low Fan Control
Runs the evaporative cooler fan at two speeds.
Separate Fan and Pump Relays
Switches fan and pump circuits independently.
Plastic Weather-Resistant Case
Keeps the control panel light and protected.
21D28-6 Specifications
Case: Lightweight weather-resistant plastic
Relays: Separate fan and pump relays
Function: Switching device for evaporative cooler
Fan speeds: High and low
Kit contents: Thermostat and transformer relay control panel
