• Operating Efficiency - All PCG4 model gas units provide a
minimum AFUE of 81.0% in heating and 14.0 SEER, 11.0 EER rating for cooling operation. All models meet California Low-Nox requirements of 40 ng/joule
emission level for Air Quality Management Districts. • On Site Flexibility - All model sizes use a compact design cabinet in one of two footprints.
This provides installer flexibility for placing the proper capacity unit on curbs or pads with the smallest footprint after the internal load has
been determined. Field convertible duct connections from side shot to down shot allows the installer to have greater flexibility with less inventory.
• Lower Installation Cost - Installation time and costs are reduced by easy power and control wiring connections. The small base dimension means less
space is required on the ground or roof. All units are completely wired, charged with R-410A and tested prior to shipment. Test stations using a
state-of-the-art computerized process system are used to insure product quality. Refrigerant charge and component part numbers are verified via
computers during assembly. Vital run test statistics such as system pressure, motor currents, air velocity and temperature, unit vibration, and gas
system safeties are monitored and recorded by the system to insure unit performance. Equal size side supply and return duct connections allow easy
connection of ducts to match low crawl spaces without transition pieces. • Utility Connections Made Easy - Gas and electric utility access provided
through the bottom or the side of the unit. • Utility connections can be made quickly and with a minimum amount of field labor. A field supplied and
field installed electrical disconnect switch must be installed. • Convertible Airflow Design - The bottom duct openings are covered when they leave
the factory, ready to be used for a side supply/side return application. If a bottom supply/bottom return application is desired, simply remove the
two panels from the bottom of the unit and place them in the side supply/side return duct openings. No panel cutting is required and no accessory
panel is necessary. Convertible airflow design allows maximum field flexibility and minimum inventory. • Condensate Pan - A corrosion-resistant,
long-lasting, watertight pan is positioned below the evaporator coil to collect and drain all condensate, preventing build-up of stagnant condensate.
The condensate pan conforms to ASHRAE 62-89 standards (Ventilation for Acceptable Indoor Air Quality). • Condensate Drain - The 3/4 inch NPT female
connection is rigidly mounted to assure proper fit and leak tight seal. • Durable Finish - The cabinet is made of G90 galvanized steel with a powder
paint coating for appearance and protection. The pre-treated galvanized steel provides a better paintto-steel bond, which resists corrosion and rust
creep. Powder paint finish insure less fading when exposed to sunlight, and provides superior corrosion resistance (1000 hour salt spray tested). •
Full Perimeter Base Rails - The easily removable base rails provide a solid foundation for the entire unit and protects the unit during shipment. The
rails provide fork lift access from all sides, and rigging holes are also provided so that an overhead crane can be used to place the units on a
roof. On applications where the unit is placed on a pad, the base will keep the unit off the pad to deter corrosion. On applications where height is
limited, the base rails may be removed by removing 2 screws in each corner. • More Attractive Appearance - A single-piece top cover containing a
top-discharge outdoor fan arrangement requires less square footage on installation and provides a wider variety of installations. The one-piece
design adds greater water integrity. Rounded corners with water drip edges add to the attractive appearance. • Top Discharge - The top-discharge
outdoor fan does not disrupt neighboring areas or dry out vegetation surrounding the unit. The warm air from the top mounted fan is blown up and away
from the structure and any landscaping. This allows compact location on multi-unit applications. • Outdoor Coil Grille - All models utilize a stamped
slotted design which provides superior impact protection against small objects during transit and after installation. • Low Operating Sound Level -
The upward air flow carries the normal operating noise up and away from the living area. The rigid top panel effectively isolates noise. Isolator
mounted compressor and the rippled fins of the outdoor coil muffle the normal fan motor and compressor operating sounds. The unique formed base pan
also aids in sound attenuation with its structural design. This design strategically places embossments in the pan for optimum strength and rigidity.
• Fan System - All models operate over a wide range of design conditions with a standard ECM indoor fan motor. These units easily match all types of
applications and provide greater on-site flexibility to match comfort requirements. The cooling speed is factory-set and can be field-adjusted to a
second speed. The heating speed is factory set to maintain mid point rise at the units heating input, but can be field adjusted. This allows maximum
comfort conditions. • Simple Control Circuit - A low voltage gas heat printed circuit board contains a status/diagnostic indicator light. Field
thermostat wiring connects to color coded leads using twist on wire connections. Cooling controls use contactor and relays for simple application and
troubleshooting. Mate-nlock plug connectors are used. The electrical control box is not located in the compressor compartment. The controls are
mounted to allow the separate access panel to be removed for trouble shooting and maintenance without affecting the normal system operating
pressures. All wiring internal to the unit is color/number coded. • Protected Compressor - The compressor is internally protected against high
pressure and temperature. This is accomplished by the simultaneous operation of high pressure relief valve and a temperature sensor which protect the
compressor if undesirable operating conditions occur. • Pressure Switches - A high pressure switch is standard in all units. When abnormal conditions
are sensed through the pressure switch, the unit will lock out preventing any further operation until reset or problem is corrected. • Exclusive Coil
Design - Grooved copper tubes and enhanced aluminum fin construction improves heat transfer for maximum efficiency and durability for long-lasting
durability and efficient operation. Indoor coils use tin-coated copper tubing with aluminum fins for effective heat transfer. • Heat Exchangers - Gas
heat exchangers use corrosionresistant, stainless-steel tubular construction to provide longlife, trouble-free operation. Gas heat exchangers are
offered with lifetime warranties as standard with registration. • Post Purge Induced Draft Combustion - Exhausts combustion products from the heat
exchanger upon completion of the heating cycle to prolong the heat exchanger life. • Spark To Burner Ignition - No pilot assembly required, which
provides more consistent ignition in gas heating mode. This ignition is highly reliable, durable and eliminates nuisance lockouts. • Multi Port
In-shot Burners - No field adjustment is required to mix the air and gas for natural gas or propane use. These burners are constructed of high-grade
corrosion-resistant, aluminized steel. • Low Maintenance - Long life, permanently lubricated outdoor and evaporator fan motor bearings need no annual
maintenance, adding greater reliability to the unit. Slide-out blower assembly can be easily removed for cleaning. • Easy Service Access - Individual
access panels covering the electrical and gas controls makes servicing easy. Removing this panel will allow easy removal of the blower assembly for
maintenance and ease of troubleshooting. • Replacement Parts - The installer requires no special training to replace any of the components of these
units and the number of new components have been reduced to minimize the inventory of unique parts.