2
To the Installer
Model 20
080916
Air Cooled Units
DO NOT
obstruct air intake and discharge openings:
Always allow a minimum of 3” (76 mm) clearance
around all sides of the unit for adequate air flow across
the condenser. Failure to allow adequate clearance
can reduce the equipment’s performance and cause
permanent damage to the compressor.
Do not allow the drape cloth to cover the side panel
louvers. This may limit air flow to the condenser.
CAUTION: To protect the life of the
compressor, continuous “No Load” operation of
the unit should NOT exceed two hours.
(“No Load”
operation of the unit means running the unit with just
the heat transfer medium in place.)
Electrical Connections
Each machine requires one power supply. The Model
20 is supplied with a cord and grounding type plug. The
wall outlet must be rated 15A minimum and properly
grounded.
In the United States, this equipment is intended to be
installed in accordance with the National Electrical
Code (NEC), ANSI/NFPA 70--1987. The purpose of
the NEC code is the practical safeguarding of persons
and property from hazards arising from the use of
electricity. This code contains provisions considered
necessary for safety. Compliance therewith and
proper maintenance will result in an installation
essentially free from hazard!
In all other areas of the world, equipment should be
installed in accordance with the existing local codes.
Please contact your local authorities.
FOLLOW YOUR LOCAL ELECTRICAL CODES!
CAUTION: THIS EQUIPMENT MUST BE
PROPERLY GROUNDED! FAILURE TO DO SO
CAN RESULT IN SEVERE PERSONAL INJURY
FROM ELECTRICAL SHOCK!
CAUTION: Always disconnect the power
supply before servicing this equipment.
Failure to
comply may result in electric shock or damage to the
equipment.
S
Stationary appliances which are not
equipped with a power cord and a plug or
another device to disconnect the appliance
from the power source must have an all-pole
disconnecting device with a contact gap of
at least 3mm installed in the external
installation.
S
Appliances that are permanently connected
to fixed wiring and for which leakage
currents may exceed 10 mA, particularly
when disconnected or not used for long
periods, or during initial installation, shall
have protective devices such as a GFI, to
protect against the leakage of current,
installed by the authorized personnel to the
local codes.
S
Supply cords used with this unit shall be
oil-resistant, sheathed flexible cable not
lighter than ordinary polychloroprene or
other equivalent synthetic
elastomer-sheathed cord (Code designation
60245 IEC 57) installed with the proper cord
anchorage to relieve conductors from strain,
including twisting, at the terminals and
protect the insulation of the conductors from
abrasion.
This unit is provided with an equipotential
grounding lug that is to be properly attached to the rear
of the frame by the authorized installer. The installation
location is marked by the equipotential bonding
symbol (5021 of IEC 60417-1) on both the removable
panel and the equipments frame.
