Carrier 40RMQ, Данные о продукции

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37
Split-System Heat Pump Outdoor Unit
HVAC Guide Specifications — Section 15678
Size Range: 83,000 Nominal Btuh Heating
7
1
/
2
Nominal Tons Cooling
Carrier Model Number: 38AQS008
Part 1 — General
1.01 SYSTEM DESCRIPTION
A. Outdoor-mounted, electrically controlled, air-cooled
split system heat pump unit utilizing a reciprocating-
type semi-hermetic compressor for refrigerant com-
pression. Unit shall function as the outdoor compo-
nent of an air-to-air electric heat pump system.
B. Unit shall be used in a refrigerant circuit to match
Packaged Air-Handling Unit, Section 15859, for
matched system approved by manufacturer.
1.02 QUALITY ASSURANCE
A. Unit performance shall be certified in accordance
with ARI Standards 210/240 and 270, latest
versions.
B. The refrigerant coil shall be designed and tested in
accordance with ASHRAE 15 Safety Code for
Mechanical Refrigeration.
C. Unit shall be constructed in accordance with UL and
UL, Canada regulations and shall carry the UL and
UL, Canada labels of approval. Units shall be manu-
factured in a facility registered to the ISO 9001
manufacturing quality standard.
D. Coil leak testing shall be at 300 psig air pressure
with the coil submerged in water. After testing, the
coil shall be dehydrated and charged with dry air.
E. Unit casing shall be capable of withstanding
500-hour salt spray exposure per ASTM B117
(scribed specimen).
1.03 DELIVERY, STORAGE, AND HANDLING
Unit shall be stored and handled in accordance with
unit manufacturer’s instructions.
Part 2 — Products
2.01 EQUIPMENT
A. General:
Outdoor-mounted, air-cooled split system heat
pump unit shall be suitable for on-the-ground or
rooftop installation on a full level pad or on raised
pads at each support point. The unit shall consist of
a semi-hermetic reciprocating compressor, a fin-
tube coil, propeller-type fan, fan motor, refrigeration
control devices, and a control box. All components
shall be factory assembled as a single unit. A holding
charge of R-22 shall be included. Units shall be used
in a refrigeration circuit matched with a 40RMQ008
packaged air-handling unit.
B. Unit Cabinet:
1. Cabinet shall be constructed of galvanized steel,
bonderized, and finished with baked enamel.
2. Fan venturi housings and guards shall be assem-
bled on the unit.
3. A removable panel shall be provided for access
to compressor and control compartments.
4. A refrigerant accumulator with a fusible plug
relief shall be installed in the cabinet.
5. Lifting holes shall be provided to facilitate
rigging.
C. Fan:
1. Propeller fan shall be directly driven by weather-
proof motors. Fan motor bearings shall be per-
manently lubricated.
2. Fan shall be arranged for vertical discharge.
D. Compressor/Motor Assembly:
1. Semi-hermetic, reciprocating-type 06D com-
pressor shall be complete with a motor and oil
pump all on a single polished crankshaft.
2. Motor stator winding shall be NEMA Class F
rated, suitable for operation in a refrigerant
atmosphere
3. Oil pump shall be automatically reversible.
4. Casing shall include discharge shutoff valves, oil
level control orifice, oil-pressure regulating
valve, and a crankcase oil heater.
5. Suction and discharge manifold valves shall be
Swedish steel, reed-type flapper valves.
6. Pistons and connecting rods shall be high-
density aluminum alloy castings. Pistons shall be
equipped with automotive-type compression
and oil scraper rings.
7. Pump-end bearing shall be cast aluminum.
Motor-end bearing shall be steel-backed, tin-
base babbit type.
8. Compressor assembly shall be installed on
spring vibration isolators.
E. Coil:
Coil shall have copper tubes, aluminum plate fins
(copper fins optional), and galvanized steel tube
sheets. The fins shall be bonded to tubes by mechan-
ical expansion. Coil shall be circuited for subcooling
in cooling mode operation.
For refrigerant control, the unit shall be equipped
with a liquid line, suction line, and compressor dis-
charge service valves. The unit shall include an accu-
mulator with a fusible plug relief and a reversing
valve for effective heat pump operation. Each unit
system shall have 3 service ports: one on the suction
line, one on the liquid line, and one on the compres-
sor discharge line. Each port shall be capped for
leak tightness.
Guide specifications —
38AQS008 outdoor unit