Understanding Control Transformers
$29.95 (DVD) Part #DVD 1995-01

$24.95 (VHS) Part #VID 1995-01 (Call to Order)
This HVAC training video discusses various types of transformers, from standard step-down to multi-tap devices, and shows how to use a meter to test and troubleshoot them. Graphics and drawings are featured throughout the presentation to explain wiring configurations and show how a transformer does what it does in an HVAC/R control circuit.
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