• Operating Efficiency - All PHE4 heat pump models are rated at
14.0 SEER, 11.0 EER and 8.0 HSPF for cooling and heating operation. • 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 refrigerant 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 -
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 indoor 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. • 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 and provide cut protection to the installer • 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. • 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. • Low Maintenance - Long life, permanently
lubricated outdoor and indoor fan motor bearings need no annual maintenance, adding greater reliability to the unit. Slide-out blower assembly and
indoor coil assembly can be easily removed for cleaning or service. • 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 and heating speeds are factory set at test design conditions but can be field adjusted. This allows maximum comfort
capabilities. • Loss of Charge Switch - All models include a loss of charge switch to provide safe shutdown of compressor. • Simple Control Circuit -
A printed circuit board contains a status/diagnostic indicator light. Field thermostat wiring connects to color coded wire leads using twist on wire
connections. Cooling controls use contactor and relays for simple application and troubleshooting. Mate-n-lock 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 scroll bypass and a temperature thermal overload 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 will
use tin-coated copper tubing with aluminum fins for effective heat transfer. • Electric Heat - All electric heat models use 6HK electric heat, which
are available in 460V/3/60 10kW to 25kW. • Easy Service Access - Individual access panels are provided in access to all major components -
compressors, indoor coils, blower, controls/electric heat kits, filters, etc. that makes servicing easy. Removing these panels allow easy removal of
the components such as 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. • Controls - Demand defrost curves pre-loaded into defrost control for optimized performance based on unit capacities. • Filter Frame Kit -
All PHE units include a filter frame kit which is shipped inside the unit from production. Field installation is required. • Filters - All 3 phase
units include an applicable number of 1" washable filters, which are shipped inside the unit from production. Field installation is required. Two
filters are required for A base units. Three filters are required for B base units.