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6 SXIH-SVX01B-EN
Installation
general
information
General Information
The integral air-cooled unit, model SCIH,
is a high efficiency, vertical air cooled air
conditioner. Units have either front or top
discharge configuration options and easy
service access. Unit construction is
heavy gage steel with a baked enamel
finish. Available unit voltages are 208/3/60,
230/3/60, and
460/3/60, 575/3/60.
Refrigeration Circuits
Units are configured in single or double
refrigeration circuits. Each circuit consists
of a:
• high efficiency scroll compressor
mounted on rubber isolation grommets
• condenser and evaporator coils,
designed for optimum performance and
efficiency with lanced fins and rifled
tubing,
• and filter-drier.
Evaporator Section
The evaporator fan section consists of
one or two forward curved centrifugal
fans powered by a premium efficiency
motor through an adjustable motor
sheave, and fixed diameter blower
pulley. The condenser fan section consists
of one or two forward curved centrifugal
fans powered by a premium efficiency
motor through an adjustable motor
sheave and fixed diameter blower pulley.
Condenser motor belt tension is adjusted
by an adjustable motor mounting base.
Control box access is from the front of
the unit to ease electrical hook-up.
Controls
The standard control panel consists of a
high voltage terminal block, overload
relays for each fan motor, transformer, 3-
pole 24 volt contactors for each motor
and compressor, and a 5-second delay
timer. Remote thermostat controls are
field-installed.
Field Installed Accessories
These items ship separately for field
installation:
• steam coil
• hot water coil
• plenum
• low ambient damper
• oversized motors
• remote thermostat
Note: Application of the above options
and/or accessories may require field
adjustment of fan speeds to ensure
proper airflow and performance.
Unit Nameplate
The unit nameplate identifies the unit
model number, appropriate service
literature, and wiring diagram numbers. It
is mounted on the control panel door.
Reference this information when making
inquires or ordering parts or literature.