Product data

56
Single-Stage Water Source Heat Pumps with
Puron
®
Refrigerant (R-410A)
HVAC Guide Specifications
Size Range: 5,800 to 66,600 Btuh
Cooling Capacity
4,900 to 77,000 Btuh
Heating Capacity
Carrier Model Number: 50P1H, 50P1V
Part 1 — General
1.01 SYSTEM DESCRIPTION
A. Single package horizontally and vertically mounted
water source heat pumps with Puron
®
refrigerant
(R-410A) and electronic controls.
B. Equipment shall be completely assembled, piped
and internally wired. Capacities and characteristics
as listed in the schedule and the guide specifications
that follow.
1.02 QUALITY ASSURANCE
A. All equipment listed in this section must be rated and
certified in accordance with AHRI/ISO and ETL
listed to UL standard 1995. The units shall have
AHRI/ISO and ETL labels.
B. All units shall be fully quality tested by factory run
testing under normal operating conditions and water
flow rates as described herein. Quality control sys-
tem shall automatically perform via computer: triple
leak check, pressure tests, evacuate and accurately
charge system, perform detailed heating and cooling
mode tests, and quality cross check all operational
and test conditions to pass/fail data base. A detailed
report card will ship with each unit displaying all test
performance data.
NOTE: If unit fails on any cross check, system shall
not allow unit to ship.
C. Serial numbers will be recorded by factory and fur-
nished to contractor on report card for ease of unit
warranty status. Units tested without water flow are
not acceptable. Units shall be prewired and pre-
charged in factory.
Part 2 — Product
2.01 EQUIPMENT
A. General:
Units shall be supplied completely factory built for
an entering water temperature range from 60 to
95 F as standard. Units may consist of rotary or
scroll compressor, PSC (permanent split capacitor)
fan motor and blower and refrigerant circuit as indi-
cated on the equipment schedule. Equivalent units
from other manufacturers can be proposed provided
approval to bid is given 10 days prior to bid closing.
B. Unit Cabinets:
1. Horizontal Units:
a. Horizontal units shall have one of the
following airflow arrangements: left inlet/
right discharge; right inlet/left discharge; left
inlet/back discharge; or right inlet/back dis-
charge as shown on the plans.
b. Horizontal units must have the ability to be
field convertible from side to back or back to
side discharge with no additional parts or unit
structure modification. Units will have factory-
installed hanger brackets with rubber isolation
grommets packaged separately.
2. Vertical Units:
Vertical units shall have one of the following air
flow arrangements: left return/top discharge,
right return/top discharge, front return/top dis-
charge as shown on the plans.
3. If units with these arrangements are not used,
the contractor is responsible for any extra costs
incurred by other trades.
4. All units (horizontal and vertical) must have a
minimum of three access panels for serviceabil-
ity of compressor compartment. Units having
only one access panel to compressor, heat
exchangers, expansion device, or refrigerant
piping shall not be acceptable.
5. Standard cabinet panel insulation must meet
NFPA 90A requirements, air erosion and mold
growth limits of UL-181, stringent fungal resis-
tance test per ASTM C1071 and ASTM G21,
and shall meet zero level bacteria growth per
ASTM G22. Unit insulation must meet these
stringent requirements or unit(s) will not be
accepted.
6. Cabinets shall have separate holes and knock-
outs for entrance of line voltage and low voltage
control wiring.
7. All factory-installed wiring passing through fac-
tory knockouts and openings shall be protected
from sheet metal edges at openings by plastic
ferrules.
8. Contractor must ensure that units can be easily
removed for servicing and coordinate locations
of electrical conduit and lights with the electrical
contractor.
C. Compressor:
1. Compressor section interior surfaces shall be
lined with
1
/
2
in. thick, dual density, 1
1
/
2
lb per
cubic ft acoustic type fiberglass insulation. Air-
handling section interior surfaces shall be lined
with
1
/
2
in. thick, single density, 1
1
/
2
lb per
cubic ft foil-backed fiber insulation for ease of
cleaning.
2. Insulation placement shall be designed in a
manner that will eliminate any exposed edges
to prevent the introduction of glass fibers into
the airstream. Units without foil-backed insula-
tion in the air-handling section will not be
accepted.
3. The compressor shall have a dual level vibration
isolation system.
Guide specifications