Robinair Models 15301 - Manual (Page 7)

5
Consult a qualified electrician when grounding instructions are not
completely understood, or when in doubt regarding whether the product
is correctly grounded. Do not modify the plug provided; if the plug
does not fit the outlet, have an appropriate outlet installed by a qualified
electrician.
Models 15300 and 15500 are for use on a nominal 120V circuit. A
temporary adapter may be used to connect this plug to a 2-pole receptacle
when a correctly grounded outlet is not available. The temporary adapter
shall be used only until a correctly grounded outlet is installed. The green
colored rigid ear, lug, or similar part extending from the adapter must be
connected to a permanent ground, such as a correctly grounded outlet
box cover. Whenever the adapter is used, it must be held in place by a
metal screw.
Extension
Cords
Grounding
Instructions
contd.
Grounding Pin
Grounded
Outlet
Grounded
Outlet Box
Metal
Screw
Adapter
tab for
Grounding
Screw
Use only a 3-wire extension cord that has a 3-blade grounding plug,
and a 3-slot receptacle that accepts the plug on the product. Verify the
extension cord is not damaged. When using an extension cord, use one
that is heavy enough to carry the current the product draws. For lengths
less than 25 ft., use 18 AWG extension cords. An undersized cord results
in a drop in line voltage, loss of power, and overheating.