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GUIDE SPECIFICATIONS
GENERAL
System Description
Outdoor--mounted, air--cooled, split--system heat pump unit
suitable for ground or rooftop installation. Unit consists of a
hermetic compressor, an air--cooled coil, forward--swept blade
propeller--type condenser fan, and a control box. Unit will
discharge supply air upward as shown on contract drawings. Unit
will be used in a refrigeration circuit to match up to a packaged fan
coil or coil unit.
Quality Assurance
— Unit will be rated in accordance with the latest edition of
AHRI Standard 240.
— Unit will be certified for capacity and efficiency, and
listed in the latest ARI directory.
— Unit construction will comply with latest edition of
ASHRAE and with NEC.
— Unit will be constructed in accordance with UL
standards and will carry the UL label of approval. Unit
will have C--UL approval.
— Unit cabinet will be capable of withstanding Federal Test
Method Standard No. 141 (Method 6061) 500--hr salt
spray test.
— Air--cooled condenser coils are pressure tested and the
outdoor units are leak tested.
— Unit constructed in ISO9001 approved facility.
Delivery, Storage, and Handling
— Unit will be shipped as single package only and is stored
and handled per unit manufacturer’s recommendations.
Warranty (for inclusion by specifying engineer)
— U.S. and Canada only.
PRODUCTS
Equipment
— Factory--assembled, single--piece, air--cooled heat pump
unit. Contained within the unit enclosure is all factory
wiring, piping, controls, compressor, refrigerant charge
Puronr (R--410A) refrigerant, and special features
required prior to field start--up.
Unit Cabinet
— Unit cabinet will be constructed of galvanized steel,
bonderized, and coated with a powder coat paint.
Fans
— Condenser fan will be direct--drive propeller type,
forward swept blade, discharging air upward.
AIR--COOLED, SPLIT--SYSTEM HEAT PUMP
25HNB6
2 TO 5 NOMINAL TONS
— Condenser fan motors will be totally enclosed, 1--phase
type with class B insulation and permanently lubricated.
— Shafts will be corrosion resistant.
— Fan blades will be statically and dynamically balanced.
— Condenser fan openings will be equipped with coated
steel wire safety guards.
Compressor
— Compressor will be hermetically sealed.
— Compressor will be mounted on rubber vibration
isolators.
— Compressor will be covered with a sound absorbing
blanket.
Condenser Coil
— Condenser coil will be air cooled.
— Coil will be constructed of aluminum fins mechanically
bonded to copper tubes which are then cleaned,
dehydrated, and sealed.
Refrigeration Components
— Refrigeration circuit components will include liquid--line
back--seating shutoff valve with sweat connections,
vapor--line back--seating shutoff valve with sweat
connections, system charge of Puronr (R--410A)
refrigerant, POE compressor oil, accumulator, and
reversing valve.
— Unit will be equipped with high--pressure switch, loss--
of--charge switch, and filter drier for Puronr refrigerant.
Operating Characteristics
— The capacity of the unit will meet or exceed _____ Btuh
at a suction temperature of _____ _F(_C). The power
consumption at full load will not exceed _____ kW.
— Combination of the unit and the evaporator or fan coil
unit will have a total net cooling capacity of _____ Btuh
or greater at conditions of _____ CFM entering air
temperature at the evaporator at _____ _F(_C) wet bulb
and _____ _F(_C) dry bulb, and air entering the unit at
_____ _F(_C).
— The system will have a SEER of _____ Btuh/watt or
greater at DOE conditions.
Electrical Requirements
— Nominal unit electrical characteristics will be _____ v,
single phase, 60 hz. The unit will be capable of
satisfactory operation within voltage limits of _____ v to
_____ v.
— Unit electrical power will be single point connection.
— Control circuit will be 24v.
Special Features
— Refer to section of this literature identifying accessories
and descriptions for specific features and available
enhancements.
25HNB6
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