Installation - Valleylab FORCE 4 Service Manual

SECTION 2
INSTALLATION
INSTALLING THE FORCE 4
The compact size of the FORCE 4 system allows a variety of installations. The
unit may be placed on the mounting cart available from Valleylab, or on any
convenient and sturdy table or cart.
At high power settings considerable power is dissipated within the unit and it
is important that the vents on the rear and sides remain unobstructed for
proper cooling. For this reason the FORCE 4 should not be installed in a
closely fitting cabinet or cart which might restrict the free circulation of
air. Under continuous use for extended periods of time, it is normal for the
top and rear panel to feel warm to the touch.
POWER FOR THE FORCE 4
90 - 140 VAC, 50 - 60 Hz
The FORCE 4 is designed to operate over an unusually wide range of input
voltages with essentially perfect output regulation. This means that in case
of brownouts or power surges the output of the FORCE 4 will always remain
constant. The FORCE 4 is normally supplied for operation on 120 volts AC
(nominal).
PROPER GROUNDING
An important consideration in assuring patient safety while using electrical
equipment is proper grounding. The ground wire in the power cable is
connected to the generator chassis and insures that no dangerous currents will
flow from the cabinet of the unit in the event of an internal electrical
failure.
Undesirable 60 Hz leakage currents are also affected by the polarization of
the input 60 Hz power to the unit. It is the responsibility of the user to
assure proper grounding and polarity in the power outlets furnishing power to
the FORCE 4.
POWER PLUGS FOR THE FORCE 4
Unless an explosion-proof connector is specified, the 110 volt FORCE 4 is
equipped with an approved hospital duty three-prong connector. This connector
meets all requirements for safe grounding. Its purpose should not be defeated
by using extension cords or 3-prong to 2-prong adapters. The connector should
be periodically disassembled and inspected by qualified maintenance personnel.