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The Leading Edge of Maintenance | HVAC - Fan Relay

Understand the role and testing of an HVAC fan relay, which uses 24 volts to activate and powers the fan motor with 240 volts (split as 120 volts per side). Learn to safely troubleshoot by checking voltage at the relay and testing the thermostat...

The Leading Edge of Maintenance | Pool Series - Chlorine Tower

Learn how to install and use a chlorine tower. Connect the “in” line from the pump and the “out” line back to the pool. Fill with 1" or 3" chlorine tablets—never use granular chlorine. Lubricate the cap gasket with silicone gel and tighten the cap...