OMEGA-VSHP.G-IOM-2205
5
3. GENERAL UNIT INFORMATION
BLOWER & MOTOR
The unit comes with a blower and motor assembly that
is mounted to a blower deck inside the unit cabinet, lo-
cated above the chassis behind the electrical box. Re-
moval of the blower/motor assembly is done through the
chassis compartment opening.
UNIT NAMEPLATES
The nameplate contains information about the unit in-
cluding model and serial numbers, electrical data and
refrigerant charge information. The cabinet nameplate is
located on the surface of the cabinet and the chassis
nameplate is located on the chassis. Collecting the in-
formation on the nameplate will be useful when contact-
ing your local customer service representative or when
ordering parts.
Size wiring and circuit breakers to
nameplate rating identified on the unit.
CONTROLS
The unit comes with a factory supplied transformer. See
wiring diagram for field wiring a thermostat to the electri-
cal box low voltage terminals. High voltage connection is
made on the left side of the cabinet and low voltage con-
nections enter through the right side of the cabinet.
MICROPROCESSOR CONTROLLER
Unit comes with a microprocessor controller that moni-
tors the entire function of the unit. The microprocessor
board comes with an integral terminal strip for wiring
thermostat cable.
REFRIGERANT CONNECTIONS
Low and high pressure side refrigeration service ports re
located inside the compressor enclosure. Slide out chas-
sis and remove sheet metal enclosure to access fittings.
CABINET– SILVER SERIES
The standard Silver series cabinet is a fully factory as-
sembled one piece cabinet. Use flexible duct connec-
tions for connecting cabinet to supply ducts to prevent
vibration and noise transmission into occupant space.
Discharge openings should be sized to meet site design
conditions. Factory default sizes shown are maximum
allowable size.
CABINET– OPTIONAL GOLD SERIES
The optional Gold series cabinet comes in two sections
for isolating fan cabinet from ductwork. The upper sec-
tion discharge plenum is lined with 1” thick insulation on
all inside surfaces. Plenum is secured to cabinet with
shipping brackets. Once discharge plenum is fastened to
the underside of the concrete slab shipping brackets
must be removed. Factory installed flexible connection
joins the upper and lower sections. “S” and “D” cleats
are used to join upper and lower plenums to the metal
portion of the flex connection. The plenum comes with
factory pre-punched knockouts on all sides. Discharge
openings should be sized to meet site design conditions.
Factory default sizes shown are maximum allowable
size.
RETURN AIR PANEL—ACOUSTIC & PERIMETER
The
Acoustic Return Air Panel
is insulated with 1/2”
thick, acoustic insulation and removable without tools to
allow access to the filter, service disconnect switch, all
electrical controls and chassis. The panel is removed by
swinging out and lifting it off the support pegs. The pan-
el should be flush mounted to the drywall as per installa-
tion guidelines.
The
Perimeter Return Air Panel
door is a hinged door
panel mounted in the drywall opening and fastened to
the wall studs.
Cabinet base height and maximum baseboard height
dimensions can be determined by referenc-
ing the Return Air Panel Installation sections.
Use appropriate example based on Return
Air Panel type ordered.
THERMOSTAT
A field provided thermostat cable is required to connect
to the control board terminal blocks. A minimum 4-wire
thermostat cable is required for use with basic thermo-
stats that do not require a ‘Common’ wire. A min. 5-wire
is recommended.
4. INSPECTION & STORAGE
INSPECTION OF UNIT
Prior to the installation of the unit perform the following
checks:
•
Visually inspect the packaging, cabinet and chassis
for signs of shipping damage prior to signing the bill
of lading. Check that the units match the sales order
by referring to the cabinet labels, and chassis
nameplate information.
•
Inspect the riser ends and stub-outs for any sign of
damage.
•
Verify breaker and power supply meet electrical
nameplate requirements of the unit.
•
Check that the nameplate of the units matches the
floor plan layout.
When construction is not complete including concrete
core drilling, drywalling, plastering, painting or any work
that would contaminate the storage space all necessary
precautions are to be taken to prevent the cabinet and
chassis from becoming contaminated. Particulate infil-
