Guide Specifications General, Products | Carrier 25HCR3C instruction

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, 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.

AIR-COOLED, SPLIT-SYSTEM HEAT PUMP 25HCR3C 1.5 TO 5 NOMINAL TONS

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 reversing 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