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GUIDE SPECIFICATIONS
GENERAL
AIR--COOLED, S PLIT-- SYSTEM HEAT PUMP
25HCR3C
1.5 TO 5 NOMINAL TONS
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, 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
ARI 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
ANSI/ 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 will be leak tested at 217
psig and pressure tested at 450 psig.
— 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
(R--22), 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,
discharging air upward.
— Condenser fan motors will be totally enclosed, 1--phase
type with class B insulation and permanently lubricated
bearings.
— Shafts will be corrosion resistant.
— Fan blades will be statically and dynamically balanced.
— Condenser fan openings will be equipped with steel wire
safety guards.
— Defrost control board which incorporates defrost relay,
defrost timer and low voltage terminal board.
Compressor
— Compressor will be hermetically sealed.
— Compressor will be mounted on rubber vibration
isolators.
Condenser
Coil
— Condenser coil will be air cooled.
— Coil will be constructed of aluminum finstock with a
resin --based epoxy--phenolic thermoset coating, factory
applied by precoating and baking on both sides. The
fins are mechanically bonded to copper tubes which are
then cleaned, dehydrated, and sealed.
Refrigeration
Components
— Refrigeration circuit components will include liquid--line
shutoff valve with sweat connections, vapor-- line shutoff
valve with sweat connections, system charge of
refrigerant, compressor oil, accumulator, loss of charge
switch, and r eversing valve.
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.
25HCR3C