Service. and. Maintenance. Checklist. Warning Turn off the electrical power to the heat pump at the disconnect switch before performing any maintenance.The heat pump may have multiple power supplies. Failure to disconnect the electricalanbsp;...
|Title||:||Audel HVAC Fundamentals, Volume 3|
|Author||:||James E. Brumbaugh|
|Publisher||:||John Wiley & Sons - 2011-01-31|