25VNA4
INFINITY®
VARIABLE SPEED HEAT PUMP
WITH GREENSPEED™ INTELLIGENCE
2 TO 5 NOMINAL TONS
PRODUCT DATA
Carrier’s 25VNA4 with Greenspeed™ Intelligence is a breakthrough
product providing up to 13 HSPF heating efficiency and up to 24 SEER
cooling efficiency. The variable speed capacity control results in strong
heating capacity as the outdoor temperature drops resulting in less
reliance on auxiliary heat. Lower speed operation, when needed in
cooling, for enhanced comfort and dehumidification.
This product has been designed and manufactured to meet Energy Star®
criteria for energy efficiency when matched with appropriate coil
components. Refer to the combination ratings in this Product Data for
system combinations that meet Energy Star guidlines.
NOTE: Ratings contained in this document are subject to change at any
time. Always refer to the AHRI directory (www.ahridirectory.org) for
the most up-to-date ratings information.
Industry leading Features / Benefits
Energy Efficiency
• Up to 24 SEER, 15 EER, 13 HSPF
• Microtube Technology™ refrigeration system
• Indoor air quality accessories available
Sound
• Sound level as low as 51 dBA in low speed .
Comfort
• Variable speed compressor with capacity range from 25-100%
• Air cooled Inverter variable speed drive
– System requires Infinity Control with Greenspeed capability
– Energy Tracking capability with the Infinity Control Wall Control
w/latest software version
(Energy Tracking has the ability to monitor and estimate the energy
consumption of your Infinity system.)
Reliability
• Non-ozone depleting Puron® refrigerant
• Front-seating service valves
• Greenspeed Intelligence actively monitors critical system parameters
• High pressure switch
• Discharge pressure transducer
• Electronic expansion valve (EXV) for heating, TXV for cooling
• Filter drier (field installed)
• Internal crankcase heater standard
Flexibility and installation:
• 2 control wires to outdoor unit
• Minimum and maximum airflow adjustments
• Compressor heating capacity control
• Hybrid Heat™ Dual Fuel capable
Durability
WeatherArmor Ultra™ protection package:
• Solid, Durable sheet metal construction
• Steel louver coil guard
• Baked-on, complete outer coverage, powder paint
Applications
• Long-line - up to 250 feet (76.2 m) total equivalent length, up to 200
feet (60.96 m) condenser above evaporator, or up to 80 ft. (24.38 m)
evaporator above condenser (See Longline Guide for more
information.)
25VNA4: PRODUCT DATA
Use of the AHRI Certified
TM Mark indicates a
manufacturer’s
participation in the
program For verification
of certification for individual
products, go to
www.ahridirectory.org.
®
Quality
ISO 9001
This product has been designed and manufactured to
meet Energy Star criteria for energy eciency when
matched with appropriate coil components. However,
proper refrigerant charge and proper air ow are critical
to achieve rated capacity and eciency. Installation of
this product should follow all manufacturing refrigerant
charging and air ow instructions. Failure to conrm
proper charge and air ow may reduce energy
eciency and shorten equipment life.
Model Number Nomenclature
12345678910111213
NNAAA/NNNNA/NA/NA/NNN
25VNA436A0030
Product
Series
25 = HPV = VS HP
Product
Family
Tier
N=
Infinity Series
Major
Series
A = Puron
SEER
Cooling
Capacity
1,000 Btuh
(nominal)
VariationsOpenOpenVoltage
A = Standard
0=Not
Defined
0=Not
Defined
3=208/230-10, 1, 2...
Standard Features
FEATURES
24364860
Puron RefrigerantXXXX
Variable Speed Rotary CompressorXXX
Variable Speed Scroll CompressorX
Air-Cooling Inverter DriveXXXX
Louvered Coil GuardXXXX
Field-Installed Filter DrierXXXX
Front-Seating Service ValvesXXXX
Internal Pressure and Temperature ProtectionXXXX
Suction Pressure TransducerXXXX
High Pressure SwitchXXXX
Crankcase HeaterXXXX
Utility Interface ConnectionsXXXX
Bluetooth® ModuleXXXX
Enhanced DiagnosticsXXXX
Energy Tracking CapabilityXXXX
Dual Sound BlanketXXXX
Outdoor Air Temperature SensorXXXX
Long Line CapabilityXXXX
X = Standard
Unit Size
Minor
Series
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
2
25VNA4: PRODUCT DATA
Refrigerant Piping Length Limitations
Maximum Line Lengths:
The maximum allowable total equivalent length for heat pumps varies depending on the vertical separation. See the tables below for allowable lengths
depending on whether the outdoor unit is on the same level, above or below the outdoor unit.
Maximum Line Lengths for Heat Pump Applications
MAXIMUM ACTUAL LENGTH
Units on equal level200 (61)250 (76.2)N/A
Outdoor unit ABOVE
indoor unit
Outdoor unit BELOW
indoor unit
*.Maximum actual length not to exceed 200 ft (61 m)
†.Total equivalent length accounts for losses due to elbows or fitting. See the Long Line Guideline for details.
ft (m)
200 (61)250 (76.2)200 (61)
Maximum Total Equivalent Length* - Outdoor Unit BELOW Indoor Unit
Liquid Line
Size
Diameter
w/ TXV
0-20
(0 - 6.1)
21-30
(6.4 - 9.1)
024 3/8 250*250*250*250*250*250*250*
0363//8250*250*250*250*250*250*250*
048 3/8 250*250*250*250*230160--
060 3/8 250*225*190150110----
*.Total equivalent length accounts for losses due to elbows or fitting. See the Long Line Guideline for details.
-- = Outside acceptable range.
*
See Table ’Maximum Total Equivalent Length: Outdoor Unit BELOW Indoor Unit’
MAXIMUM EQUIVALENT LENGTH
ft (m)
†
MAXIMUM VERTICAL SEPARATION ft
HP with Puron® Refrigerant - Maximum Total Equivalent Length
Vertical Separation ft (m) Outdoor unit BELOW indoor unit;
31-40
(9.4 - 12.2)
41-50
(12.5 - 15.2)
51-60
(15.5 - 18.3)
(18.6 - 21.3)
*
61-70
(m)
71-80
(21.6 - 24.4)
Long Line Applications
An application is considered Long Line when the refrigerant level in the system requires the use of accessories to maintain acceptable refrigerant
management for systems reliability. Defining a system as long line depends on the liquid line diameter, actual length of the tubing, and vertical
separation between the indoor and outdoor units.
For Heat Pump systems, the chart below shows when an application is considered Long Line. Beyond these lengths, long line accessories are
required:
HP with Puron® Refrigerant Long Line Description ft (m)
Beyond these lengths, long line accessories are required
Liquid Line SizeUnits On Same LevelOutdoor Below IndoorOutdoor Above Indoor
3/8 80 (24.4)20 (6.1) vertical or 80 (24.4) total80 (24.4)
NOTE: See Long Line Guideline for details
COOLING CAPACITY LOSS TABLE
Nominal
Size
(Btuh)
24000
36000
48000
60000
Rating size in BOLD
Line OD (in)
= TE Length greater than 80 ft requires long line accessory liquid line solenoid.
25507580
5/80.51.02.02.0
3/40.00.50.50.5
5/81.02.53.54.0
3/40.51.01.51.5
7/80.00.50.50.5
3/40.51.52.52.5
7/80.50.51.01.0
1 1/80.00.00.00.5
3/41.02.53.54.0
7/80.51.01.52.0
1 1/80.00.00.50.5
Cooling Capacity Loss (%)
Total Equivalent Length (ft)
100125150175200225250
2.53.03.54.55.05.56 .0
1.01.01.51.52.02.02 .5
5.06.57.59.010.511.513.0
2.02.53.03.03.54.04.5
1.01.01.51.52.02.02.5
3.04.05.05.56.57.58.0
1.52.02.53.03.03.54.0
0.50.50.50.51.01.01.0
5.06.07.58.510.011.012.5
2.53.03.54.05.05.56.0
0.50.51.01.01.01.51.5
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
3
25VNA4: PRODUCT DATA
Equipment sizing Guidelines
If primary load is cooling, size the same as any other air conditioning system. If primary load is heating, use the chart below for maximum size for
heating.
Maximum Recommended Equipment Size - Heating
COOLING LOAD (tons)MAXIMUM RECOMMENDED EQUIPMENT SIZE FOR HEATING
236
2.536
348
3.560
460
560
*. Make sure duct work is capable of delivering required airflow . Make sure combination rating exists for desired combination
*
MIN/MAX Airflow tables
The indoor airflow delivered by this system varies significantly based on outdoor temperature, indoor unit combination, and system demand. The
airflows on these tables are for duct design considerations.
Duct systems capable of these ranges will ensure the system will deliver full capacity at all outdoor temperatures.
Minimum and maximum airflows can be adjusted from these numbers in the Infinity Control Heat Pump Setup screen.
Size
24700300900500
367503001100300
4812005001600600
6014005002000750
Size
248503001000650
3615003001500650
4815505001600600
6020005002000850
Max CapacityMin CapacityMax CapacityMin Capacity
Max CapacityMin CapacityMax CapacityMin Capacity
Cooling - Comfort ModeCooling - Efficiency Mode
Heating - Comfort ModeHeating - Efficiency Mode
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
COND FAN Forward Swept Propeller Type, Direct Drive
Air DischargeVertical
Air Qty (CFM)3100410047004700
Motor HP1/31/31/31/3
Motor RPM200-800200-800200-800200-800
COND COIL
Face Area (Sq ft)30.25333333
Fins per In.20202020
Rows2222
Circuits5899
VALVE CONNECT. (In. ID)
Vapor3/47/87/87/8
Liquid3/8
REFRIGERANT TUBES (In. OD)
Rated Vapor
*
Max Liquid Line3/8
*. Units are rated with 25 ft (7.6 m) of lineset length. See Vapor Line Sizing and Cooling Capacity Loss table when using other sizes and lengths of lineset.
Note: See unit Installation Instruction for proper installation.
3/47/81-1/81-1/8
Electrical Data
UNIT SIZE-VOLTAGE, SERIESV/PH
30
24-
36-
30N/A13.70.8818.030
48-
30N/A21.20.8827.440
60-
30N/A26.60.8834.250
*. Permissible limits of the voltage range at which the unit will operate satisfactorily
†. Time-Delay fuse.
FLA - Full Load Amps
LRA - Locked Rotor Amps
MCA - Minimum Circuit Amps
RLA - Rated Load Amps
NOTE: Control circuit is 24-V on all units and requires external power source. Copper wire must be used from service disconnect to unit.
All motors/compressors contain internal overload protection.
Complies with 2010 requirements of ASHRAE Standards 90.1
208-230-1253197
OPER VOLTS
MAXMINLRARLAFLA
*
COMPRFAN
N/A12.40.8816.425
Charging Subcooling (TXV-Type Expansion Device)
UNIT SIZE-VOLTAGE, SERIESREQUIRED SUBCOOLING _F (_C) - See UI
24-30
36-30
48-30
60-30
Subcooling recommendation displayed on UI in Charging Mode must be
followed
MCA
†
MAX FUSE
CKT BRK AMPS
or
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
5
25VNA4: PRODUCT DATA
Accessories
KIT NUMBERKIT NAME24-3036-3048-3060-30
KSASF0201AAASUPPORT FEETXXXX
KHASS0606MPKSNOW STANDXXXX
KSATX0301PURTXV KITXX
KSBTX0301PURTXV KITXX
KSATX0401PURTXV KITXX
KSBTX0401PURTXV KITXX
x = Accessory
ACCESSORY USAGE GUIDELINE
REQUIRED FOR
ACCESSORY
Crankcase HeaterStandardStandardStandard
Evaporator Freeze ProtectionStandard with Infinity ControlNoNo
Liquid-Line Solenoid ValveNoYesNo
Low-Ambient ControlStandard with Infinity ControlNoNo
Puron Refrigerant Balance Port
Hard-ShutOff TXV
Support FeetRecommendedNoRecommended
Winter Start ControlStandard with Infinity ControlNoNo
*. For tubing set lengths between 80 and 200 ft. (24.38 and 60.96 m) horizontal or 20 ft. (6.10 m) vertical differential (total equivalent length), refer to the Long Line Guideline—Air
Conditioners and Heat Pumps using Puron® Refrigerant.
†. Required on all indoor units. Standard on all new Greenspeed compatible fan coils and furnace coils.
LOW-AMBIENT COOLING
APPLICATIONS
(Below 55°F/12.8_C)
†
Yes
REQUIRED FOR LONG LINE
APPLICATIONS
(Over 80 ft/24.38 m)
Yes
*
†
REQUIRED FOR SEA
COAST APPLICATIONS
(Within 2 miles/3.22 km)
†
Yes
Accessory Description and Usage (Listed Alphabetically)
1. Compressor Start Assist
The inverter drive gently starts the variable speed compressor at all times. No other start device is compatible with this unit.
2. Crankcase Heater
This unit has a compressor crankcase heater that will be energized to prevent the compressor from being the coldest part of the system thus enhancing
reliability. the indoor unit and UI do not need to be installed for the crankcase heater to operate properly..
3. Liquid-Line Solenoid Valve (LLS)
An electrically operated shutoff valve which stops and starts refrigerant liquid flow in response to compressor operation. It is to be installed at the
outdoor unit to control refrigerant off cycle migration in the OFF mode.
Usage Guideline:
An LLS is required in all long line applications to control refrigerant off cycle migration in the OFF mode. See Long Line Guideline.
Suggested for all commercial applications.
4. Snow Stand
Coated wire rack which supports unit 18 in. (457.2 mm) above mounting pad to allow for drainage from unit base.
Usage Guideline:
Suggested in the following applications:
- Unit installations in heavy snowfall areas.
- Unit installations in snow drift locations.
- Unit installations in areas of prolonged subfreezing temperatures.
- All commercial installations.
5. Thermostatic Expansion Valve (TXV) Bi-Flow
A modulating flow-control valve which meters refrigerant liquid flow rate into the evaporator in response to the superheat of the refrigerant gas
leaving the evaporator.
Usage Guideline:
Accessory required to meet AHRI rating and system reliability, where indoor not equipped.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
6
25VNA4: PRODUCT DATA
Sound Power Level (dBA)
Unit SizeTypical Octave Band SpectrumMin Speed CoolingMax Speed CoolingMin Speed HeatingMax Speed Heating
Speed90034809006000
12553.561.353.269.5
25053.055.254.770.3
50047.453.249.468.1
24
36
48
60
NOTE: Tested in compliance with AHRI 270-2008 but not listed with AHRI.
100044.553.643.667.9
200037.149.839.165.6
400033.950.538.566.7
800042.349.641.863.3
Sound Rating (dBA)51595274
Speed90039609006060
12557.462.654.970.8
25062.262.558.872.8
50049.960.545.965.6
100047.559.549.063.4
200043.554.744.365.0
400039.151.338.758.7
800046.748.644.355.6
Sound Rating (dBA)56645471
Speed90030609004700
12555.067.455.675.4
25059.766.560.464.9
50051.964.452.564.1
100047.659.749.960.3
200044.257.242.668.8
400045.955.336.556.5
800043.255.443.654.6
Sound Rating (dBA)56665672
Speed960.03420.0900.04500.0
12559.671.155.065.8
25060.671.755.470.1
50057.470.551.765.4
100050.666.447.563.4
200048.365.245.763.7
400041.258.341.362.6
800042.655.741.555.4
Sound Rating (dBA)58725471
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
7
Dimensions
INC H
MMINCHMMINCHMMINCH MMINCHMMINCH MMINCH MMINCH MMINCH MMINCH MMINCH MMLbsKgsLbsKgsINCHMMINCH MM
MINIMUM ROO F-TO P MOUNTING
PAD A PPLICA TION DIMENSIONS
"X"
MINIMUM GROUND MOUNTING
PAD A PPLICATION DIMENSIO NS
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
25VNA4: PRODUCT DATA
8
25VNA24 Balance Point Worksheet
0
2
4
6
8
10
0
5
10
15
20
25
30
35
40
-1001020304050607080
kW
BUILDING HEAT LOSS, UNIT INTEGRATED HEATI NG CAPACITY
(MBTU/HR)
OUTDOOR TEMPERATURE F
2 TON BALANCE POINT WORKSHEET
COMFORT MINIMUM AND MAXIMUM HEATING CAPACITIES
Minimum CapacityMaximum Capacity
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
25VNA4: PRODUCT DATA
9
25VNA36 Balance Point Worksheet
0
2
4
6
8
10
12
14
0
5
10
15
20
25
30
35
40
45
50
-1001020304050607080
kW
BUIL DING HEAT LO SS, UNIT INTEG RATED HEAT ING CA PACITY
(MBTU/HR)
OUTDOOR TEMPERATURE F
3 TON BALANCE POINT WORKSHEET
COMFORT MINIMUM AND MAXIMUM HEATING CAPACITIES
Minimum CapacityMaximum Capacity
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
25VNA4: PRODUCT DATA
10
25VNA48 Balance Point Worksheet
0
5
10
15
20
0
10
20
30
40
50
60
70
-1001020304050607080
kW
BUIL DING HEAT LO SS, UNIT INTEG RATED HEAT ING CA PACITY
(MBTU/HR)
OUTDOOR TEMPERATURE F
4 TON BALANCE POINT WORKSHEET
COMFORT MINIMUM AND MAXIMUM HEATING CAPACITIES
Minimum CapacityMaximum Capacity
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
25VNA4: PRODUCT DATA
11
25VNA60 Balance Point Worksheet
0
5
10
15
20
0
10
20
30
40
50
60
70
-1001020304050607080
kW
BUIL DING HEAT LO SS, UNIT INTEG RATED HEAT ING CA PACITY
(MBTU/HR)
OUTDOOR TEMPERATURE F
5 TON BALANCE POINT WORKSHEET
COMFORT MINIMUM AND MAXIMUM HEATING CAPACITIES
Minimum CapacityMaximum Capacity
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
25VNA4: PRODUCT DATA
12
Clearances
Clearances (various examples)
Wall
Wall
Wall
Wall
24”
Service
6”
(152.4 mm)
24”
(609.6)
Service
24”
(609.6)
Service
24”
(609.6)
Service
24”
(609.6)
Service
12”
(304.8)
12”
(304.8)
12”
(304.8)
12”
(304.8)
6”
(152.4)
Note: Numbers in ( ) = mm
24”
(609.6)
24”
(609.6)
24”
(609.6)
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
25VNA4: PRODUCT DATA
13
IMPORTANT: When installing multiple units in an alcove, roof well, or partially enclosed area, ensure there is adequate ventilation to prevent re-circulation of discharge air.
A07833
Tested AHRI Combination Ratings*
NOTE: Ratings contained in this document are subject to change at any time.
For AHRI ratings certificates, please refer to the AHRI directory www.ahridirectory.org
Additional ratings and system combinations can be accessed via the Carrier database at: www.MyCarrierRatings.com Equipment performance
calculator can be accessed at: http://rpmob.wrightsoft.com/
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
* Ratings are net values reflecting the effects of circulating fan heat. Supplemental electric heat is not included. Ratings are based on:
Cooling Standard: 80_F (27_C) db 67_F (19_C) wb indoor entering air temperature and 95_F (35_C) db air entering outdoor unit.
High-Temp Heating Standard: 70_F (21_C) db indoor entering air temperature and 47_F (8_C) db 43°F (6_C) wb air entering outdoor unit.
Low-Temp Heating Standard: 70_F (21_C) db indoor entering air temperature and 17_F (-8_C) db 15°F (-9_C) wb air entering outdoor unit.
COP — Coefficient of Performance
EER — Energy Efficiency Ratio
HSPF — Heating Seasonal Performance Factor
SEER — Seasonal Energy Efficiency Ratio
UI — User Interface
Total Sens‡Total Sens‡Total Sens‡Total Sens‡Total Sens‡Total Sens‡Total Sens‡
49.10 20.36 6 .31
48.63 30.10 6 .31
46.73 19.51 5 .15
46.23 28.53 5 .14
40.90 17.22 4 .43
40.43 25.04 4 .42
Total
Sys.
KW**
Capacity MBtuh
ID
SCFM
55.86 22.73 5.77
2000
55.53 32.51 5.77
2000
52.78 21.64 4.65
1750
52.42 30.71 4.65
1750
46.18 19.07 3.99
1500
45.84 26.95 3.99
1500
Total
Sys.
KW**
Capacity MBtuh
ID
SCFM
61.34 24.68 4 .96
1775
61.07 33.75 4 .95
1775
52.41 21.40 3 .74
1625
52.08 29.87 3 .74
1625
40.55 17.06 2 .79
1475
40.17 24.80 2 .78
1475
Total
ID
Sys.
SCFM
KW**
MAXIMUM DEMAND
1625
1625
MEDIAN DEMAND
1400
1400
MINIMUM DEMAND
1175
1175
Capacity MBtuh
KW**
64.21 25.67 4.33
63.98 34.05 4.33
49.60 20.21 2.83
49.31 27.54 2.83
31.40 13.47 1.68
31.01 19.64 1.67
Total
Sys.
Capacity MBtuh
ID
SCFM
64.14 25.56 3 .74
1625
63.93 33.56 3 .74
1625
46.07 18.72 2 .09
1250
45.76 25.33 2 .09
1250
20.679.140.90
875
20.46 13.82 0 .90
875
Total
Sys.
KW**
Capacity MBtuh
ID
SCFM
66.95 26.62 3 .30
1625
66.73 34.64 3 .30
1625
48.05 19.44 1 .79
1250
47.72 26.05 1 .79
1250
21.769.500.71
875
21.51 14.18 0 .71
875
Total
Sys.
KW**
ID
SCFM
1475
1475
1175
1175
875
875
Capacity MBtuh
68.43 27.20 2.85
68.24 34.56 2.84
49.10 19.77 1.54
48.82 26.02 1.54
22.259.700.60
22.02 14.36 0.59
Total
Sys.
KW**
25VNA4: PRODUCT DATA
{ Total and sensible capacities are net capacities. Blower motor heat has been subtracted.
} Sensible capacities shown are based on 80_F (27_C) entering air at the indoor coil. For sensible capacities at other than
80_F (27_C), deduct 835 Btuh (245 kW) per 1000 CFM (480 L/S) of indoor coil air for each degree below 80_F (27_C), or
add 835 Btuh (245 kW) per 1000 CFM (480 L/S) of indoor coil air per degree above 80_F (27_C).
** System kw is total of indoor and outdoor unit kilowatts.
# Detailed cooling capacities are based on indoor and outdoor unit at the same elevation per AHRI standard 210/240-08. If
additional tubing length and/or indoor unit is located above outdoor unit, a slight variation in capacity may occur.
NOTE: When the required data falls between the published data, interpolation may be performed. Extrapolation is not an
acceptable practice.
EWB — Entering Wet Bulb
Heat Pump Heating Performance – comfort mode
INDOOR
AIR
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
{ The kW values include the compressor, outdoor fan motor, and indoor blower motor. The kW from supplement heaters should be added to these values to obtain Total Sys. kilowatts.
}The Btuh heating capacity values shown are net integrated values from which the defrost effect has been subtracted. The Btuh heating from supplement heaters should be added to those values to obtain Total Sys. capacity.
NOTE: When the required data falls between the published data, interpolation may be performed. Extrapolation is not an acceptable practice.
EDB — Entering Dry Bulb
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 AHRI 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.
– 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.
AIR-COOLED, SPLIT-SYSTEM HEAT PUMP
25VNA4
2 TO 5 NOMINAL TONS
Refrigeration Components
– Refrigeration circuit components will include liquid-line
front-seating shutoff valve with sweat connections, vapor-line
front-seating shutoff valve with sweat connections, system charge
of Puronr (R-410A) refrigerant, PVE compressor oil, accumulator,
electronic expansion valve, and reversing valve.
Some models will be equipped with a brazed plate heat exchanger
and vapor injection EXV
– Unit will be equipped with high-pressure switch, suction pressure
transducer, discharge pressure transducer 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.
– Infinity control with appropriate software version is required for
full featured operation.
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
31
25VNA4: PRODUCT DATA
System Design Summary
1. Intended for outdoor installation with free air inlet and outlet. Outdoor fan external static pressure available is less than 0.01-in. wc.
2. This product is qualified for low ambient cooling operation (below 55_F / 12.8_C) with an Infinity User Interface ONLY.
3. The maximum outdoor operating ambient in cooling mode is 125_F (51.67_C).
4. Minimum outdoor operating air temperature for heating mode is –15_F (–26.1_C).
5. Maximum outdoor operating air temperature for heating mode is 75_F (23.9_C).
6. For reliable operation, unit should be level in all horizontal planes.
7. For interconnecting refrigerant tube lengths greater than 80 ft (23.4 m) and/or elevation differences between indoor and outdoor units greater than
20 ft (6.1 m), consult Residential Piping and Longline Guideline and Service Manual available from equipment distributor.
8. If any refrigerant tubing is buried, provide a 6 in. (152.4 mm) vertical rise to the valve connections at the unit. Refrigerant tubing lengths up to 36
in. (914.4 mm) may be buried without further consideration. Do not bury refrigerant lines longer than 36 in. (914.4 mm).
9. Use only copper wire for electric connection at unit. Aluminum and clad aluminum are not acceptable for the type of connector provided.
10. Do not apply capillary tube indoor coils to these units.
11. Factory-supplied filter drier must be installed.