SPECIFICATION CATALOG
GEOTHERMAL HYDRONIC HEAT PUMP
1.5 TO 6 TONS
NSW SPECIFICATION CATALOG
Table of Contents
Model Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
The Envision Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
Inside the Envision Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Water Quality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Standard Board - Control Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-10
External Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Standard Control - Panel Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11-12
Optional Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13-17
Envision Application Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18-24
Dimensional Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Physical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Antifreeze Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
AHRI/ISO 13256-2 Performance Ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Pressure Drop . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Reference Calculations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Legend and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Performance Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30-43
Wiring Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44-49
Accessories and Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50-51
Engineering Guide Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52-53
NSW SPECIFICATION CATALOG
Model Nomenclature
1-3
NSW
4-6
050
7
A
8
1
9
0
10
H
11
C
12
C
Model
NSW = Envision Series
Hydronic Heat Pump
Load Coax 2
C = Copper
N = Cupronickel
Capacity
018 MBTUH
025 MBTUH
040 MBTUH
050 MBTUH
060 MBTUH
075 MBTUH
Source Coax
C = Copper
N = Cupronickel
Vintage
A = NSW040 - NSW075
B = NSW018 - NSW025
Hot Water Option 1
0 = No HWG, No IntelliStart
2 = HWG, No IntelliStart*
3 = No HWG, IntelliStart
5 = HWG, IntelliStart*
Reversible Option
H = Heating Only
R = Reversible
Voltage
1 = 208-230/60/1 (Residential)
NOTES: 1 Available on 040, 050, 060, and 075 only. Hot water generator requires field installed external pump kit.
2
NSW018 and NSW025 heating only models are available only with copper double wall vented load coax
for potable water.
All Envision Series product is safety listed under UL1995 thru ETL and performance listed with AHRI in
accordance with standard 13256-2. The Envision Series is also Energy Star rated.
4
NSW SPECIFICATION CATALOG
The Envision Series
NSW Features
High efficiency copper coaxial
heat exchanger (vented double
walled available only on 018 and
025 "heating only" models)
Zero ODP and low GWP
R-410A refrigerant
Optional Hot Water
Generator available
on 040-075
Optional IntelliStart
reduces starting
current by 60-70%
High efficiency copper or
cupronickel coaxial heat
exchangers
Field switchable control
box (end to end) for
application flexibility
Full refrigerant suction
tube, heat exchanger, and
waterline insulation to
prevent condensation at
low loop temperatures
Insulated and corrosion
resistant cabinet to
reduce noise
High efficiency scroll
compressors for improved
reliability
Microprocessor control
with robust safety controls
Dual isolation compressor
mounts to reduce noise
and vibration
Compressor sound blankets
for reduced noise
Standard waterlines out
the back (field switchable
to front via control box)
Captive FPT water connections
eliminate 'egg-shaping' backup wrench
5
NSW SPECIFICATION CATALOG
The Envision Series cont.
High Efficiency
The Envision Series are the highest efficiency units available.
Large oversized water-to-refrigerant heat exchangers and
scroll compressors provide extremely efficient operation. This
efficiency means the Envision Series requires less loop than any
product on the market. This can mean significant savings on
commercial and residential projects.
• Computer bar code equipped assembly line ensures all components are correct.
• All units are computer run-tested with water to verify both function and performance.
• Safety features include high- and low-pressure refrigerant
controls to protect the compressor; hot water high-limit
hot water generator pump shutdown.
Operating Efficiencies
Easy Maintenance and Service Advantages
• Environmentally friendly R-410A refrigerant reduces
ozone depletion.
• An optional hot water generator is available on NSW040,
NSW050, NSW060, and NSW075 to generate hot water
at considerable savings while improving overall system
efficiency.
• High-stability bidirectional expansion valve provides
superior performance.
• Efficient scroll compressors operate quietly.
• Oversized coaxial tube water-to-refrigerant heat
exchanger increases efficiency.
• Removable compressor access panels.
• Integrated temperature controls with digital readout and
user interface.
• Quick attach wiring harnesses are used throughout for fast servicing.
• High and low pressure refrigerant service ports.
Options and Accessories
• Optional hot water generator with externally mounted
pump and water heater plumbing connector.
• Closed loop, source side, circulating pump kit
• Closed loop, load side, circulating pump kit
• Water connection kits
• Geo-Storage Tank (80-120 Gal.)
• IntelliStart
• HydroZone, tank control with outdoor reset
Standard Features
•
•
•
•
•
•
•
•
Commercial single phase and three phase voltages are available.
Heavy gauge cabinet
Quiet scroll compressors in all models
All interior cabinet surfaces are insulated with 1⁄2 in.
[12.7 mm] thick 1 1⁄2 lb. [681 g] density, surface coated, acoustic type glass fiber insulation.
Optional IntelliStart to reduce starting current (208-230/60/1)
Field switchable control box
Ultra-compact cabinet
Multi-density laminate lined compressor blanket designed
to suppress low frequency noise.
Application Flexibility
• Designed to operate with entering source temperature of
25°F and leaving load temperatures of 40°F to 130°F. See
the capacity tables to see allowable operating conditions
per model.
• Source side flow rates as low as 1.5 GPM/ton for well
water, 50°F [10°C] min. EWT.
• Dedicated heating and heat pump models available.
• Dedicated non-reversible models are shipped as
heating only; field convertible to cooling only.
• Modularized unit design and primary/secondary
controls for optimum capacity matching and staging.
• Stackable for space conservation (to a maximum 3 units high).
• Compact size allows installation in confined spaces.
• Front or rear plumbing connections.
• Control Panel location is reversible.
Product Quality
• Heavy-gauge steel cabinets are finished with a durable
polyester powder coat paint for long lasting beauty and
service.
• The front access panel of each unit is made of a highdensity non-metallic material when equipped with
standard control.
• All refrigerant brazing is performed in a nitrogen
atmosphere.
• The NSW018H and NSW025H are available with load side
copper vented double wall coaxial heat exchangers.
• Coaxial heat exchangers, refrigerant suction lines, hot
water generator, and all water pipes are fully insulated
to reduce condensation problems in low temperature
operation.
• Computer controlled deep vacuum and refrigerant charging system.
• All joints are leak detected for maximum leak rate of less than 1⁄4 oz. per year.
6
NSW SPECIFICATION CATALOG
Inside the Envision Series
Refrigerant
Service Connections and
Serviceability
Envision products all feature zero ozone depletion and low
global warming potential R-410A refrigerant.
Two Schrader service ports are
provided for each unit. The suction
side and discharge side ports are for
field charging and servicing access. All
valves are 7/16 in. SAE connections.
Cabinet
All units are constructed of corrosion resistant galvanized
sheet metal with powder coat paint rated for more than
1000 hours of salt spray. Lift-out access panels provide
access to the compressor section from two sides.
4-Way Reversing Valve
Compressors
Envision units feature a reliable all-brass pilot operated
refrigerant reversing valve. The reversing valve operation is
limited to change of mode by the control to enhance reliability.
High efficiency R-410A scroll compressors are used on every
model. Scrolls provide both the highest efficiency available
and great reliability.
Electrical Box
The control panel is "field" movable from front to back for ease
of application. Separate knockouts for low voltage, and two
for power on, front and back, allow easy access to the control
box. Large 75VA transformer assures adequate controls power
for accessories.
Water Connections
Flush mount FPT water connection fittings allow one wrench
leak-free connections and do not require a backup wrench.
Factory installed water line thermistors can be viewed through
the microprocessor interface tool.
IntelliStart
The optional IntelliStart single
phase soft starter will reduce
the normal start current (LRA)
by 60-70%. This allows the
heat pump to go off-grid.
Using IntelliStart also provides
a substantial reduction in
light flicker, reduces start-up noise, and improves the
compressor's start behavior. IntelliStart is available in a field
retrofit kit or as a factory installed option for all Envision
and Synergy3D units. IntelliStart is available on 208230/60/1 voltage.
Thermostatic Expansion Valve
All Envision models utilize a balanced
port bidirectional thermostatic
expansion valve (TXV) for refrigerant
metering. This allows precise refrigerant
flow in a wide range of entering water
variation (20 to 120°F [-7 to 49°C])
found in geothermal systems. The TXV is
located in the compressor compartment
for easy access.
Water-to-Refrigerant Heat Exchanger Coil
Large oversized coaxial refrigerantto-water heat exchangers provide
unparalleled efficiency. The coaxes
are designed for low pressure drop
and low flow rates. All coaxes are
pressure rated to 450 psi water side
and 600 psi on the refrigerant side.
Refrigerant-to-water heat exchangers
will be coated with ThermaShield
to prevent condensation in low
temperature loop operation. Vented,
double walled heat exchanger suitable
for potable water systems are standard
on 018-025 heating only models.
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NSW SPECIFICATION CATALOG
Water Quality
General
building’s piping system that the designer may need to take
into consideration when deciding the parameters of the
water quality.
NSW water-to-water heat pumps may be successfully
applied in a wide range of residential and light commercial
applications. It is the responsibility of the system designer
and installing contractor to ensure that acceptable water
quality is present and that all applicable codes have
been met in these installations. Failure to adhere to the
guidelines in the water quality table could result in loss of
warranty.
If an antifreeze or water treatment solution is to be used,
the designer should confirm it does not have a detrimental
effect on the materials in the system.
Contaminated Water
In applications where the water quality cannot be held to
prescribed limits, the use of a secondary or intermediate
heat exchanger is recommended to separate the unit from
the contaminated water.
Water Treatment
Do not use untreated or improperly treated water.
Equipment damage may occur. The use of improperly
treated or untreated water in this equipment may result in
scaling, erosion, corrosion, algae or slime. The services of a
qualified water treatment specialist should be engaged to
determine what treatment, if any, is required. The product
warranty specifically excludes liability for corrosion,
erosion or deterioration of equipment.
The following table outlines the water quality guidelines
for unit heat exchangers. If these conditions are exceeded,
a secondary heat exchanger is required. Failure to supply
a secondary heat exchanger where needed will result in a
warranty exclusion for primary heat exchanger corrosion or
failure.
The heat exchangers and water lines in the units are copper
or cupronickel tube. There may be other materials in the
Water Quality Guidelines
Material
Copper
90/10 Cupro-Nickel
pH
Acidity/Alkalinity
7- 9
7-9
7-9
Scaling
Calcium and Magnesium Carbonate
(Total Hardness) less than 350 ppm
Less than .5 ppm (rotten egg smell
appears at 0.5 PPM)
Less than 125 ppm
Less than .5 ppm
Less than 20 ppm
Less than 50 ppm
Less than 2 ppm
Less than .5 ppm
Less than .5 ppm
Less than .5 ppm
Less than .5 ppm
Less than 1000 ppm
(Total Hardness) less than 350 ppm
(Total Hardness) less than 350 ppm
Hydrogen Sulfide
Corrosion
Sulfates
Chlorine
Chlorides
Carbon Dioxide
Ammonia
Ammonia Chloride
Ammonia Nitrate
Ammonia Hydroxide
Ammonia Sulfate
Total Dissolved Solids (TDS)
LSI Index
Iron Fouling
Bacterial Iron Potential
Iron Oxide
(Biological Growth)
Erosion
Suspended Solids
Threshold Velocity (Fresh Water)
+
0.5 to -.05
10 - 50 ppm
Less than 1 ppm
Less than 125 ppm
Less than .5 ppm
Less than125 ppm
10 - 50 ppm
Less than 2 ppm
Less than .5 ppm
Less than .5 ppm
Less than .5 ppm
Less than .5 ppm
1000-1500 ppm
Less than 200 ppm
Less than .5 ppm
Less than 300 ppm
10- 50 ppm
Less than 20 ppm
Less than .5 ppm
Less than .5 ppm
Less than .5 ppm
Less than .5 ppm
1000-1500 ppm
+
< .2ppm
316 Stainless Steel
0.5 to -.05
< .2 ppm
+
0.5 to -.05
< .2 ppm
Less than 1 ppm. Above this level
Less than 1 ppm. Above this level
Less than 1 ppm. Above this level
deposition will occur.
deposition will occur.
deposition will occur.
Less than 10 ppm and filtered for max of Less than 10 ppm and filtered for max of Less than 10 ppm and filtered for max of
600 micron size
600 micron size
600 micron size
< 6 ft/sec
< 6 ft/sec
<6 ft/sec
Note:
Grains = PPM divided by 17
mg/l is equivalent to PPM
8
NSW SPECIFICATION CATALOG
Standard Board - Control Features
Anti Short Cycle Time
Test Mode
The anti short cycle time consists of a three minute
minimum “off” time plus a randomly chosen 0-2 minute
additional “off” delay. The random delay is chosen by the
control after each compressor shut down. The 3-5 minute
startup delay is applied after all compressor shutdowns and
also to system startups due to ac power interruption.
Connection of a jumper wire from chassis ground to P3
will place the control in the test mode. This shortens most
timing delays for faster troubleshooting. In the Primary
Mode the control will respond immediately if a demand
is present. The anti-short cycle delay is replaced by a
10 second pump and compressor on delay. Minimum
compressor run time becomes 15 seconds. Test mode will
remain in effect for a maximum of 15 minutes at any one
time should the jumper remain in place.
Safety Controls
The control board receives separate signals for a high
pressure switch for safety, low pressure switch to prevent
loss of charge damage, and a low suction temperature for
freeze detection. Upon a 30-second measurement of the
fault (immediate for high pressure), compressor operation
is suspended and the fault will be shown on the display.
Fault Conditions
There are two classes of faults, retry faults and no retry
faults. Retry faults allow the system to try 2 additional
times to establish operation before displaying the fault
condition and entering lockout. No-Retry Faults prevent
compressor operation for the duration of the fault. If the
fault activity ceases while the system is inactive, the fault
code is cleared from the display and operation is permitted.
Setpoint Temperature Ranges
In Primary mode, the heating temperature setpoint range
is adjustable from 60°F (15.5°C) to 130°F (54.4°C) with
an adjustable deadband range of 1° - 15°F. The cooling
setpoint temperature is adjustable from 0° (-17.7°C) to 85°F
(29.4°C) with a fixed non-adjustable deadband of 5°F.
Retry Faults
High pressure, low pressure and freeze detection
faults are retried twice before locking the unit out and
displaying the fault condition.
Load Pump Control
High Pressure (HP)
Compressor operation will be disabled immediately
when the normally closed high-pressure switch is
opened momentarily (set at 600 psi). The LED display
shall read “HP” only when the control has completed
two retries, and is in lockout. The pump continues to
operate throughout the retry period.
There are two options for controlling the load pump, Pump
Sampling (PS) or Continuous Pump (C), and these are
selectable in the service Menu.
Pump Sampling (PS)
In Primary Mode, the control operates on a 10 minute
sample cycle in which the load pump is turned on and
run to obtain a meaningful sample of the temperature
the load is presenting. If the water temperature
measured after the pump has been on for PS minutes
(selected and adjusted from the Service Menu) is
outside the user selectable deadband amount, dB
(also selected and adjusted from the Service Menu),
the compressor is turned on and Heating or Cooling
is initiated. If the water temperature is within the
deadband of the set point when sampled, the pump
shuts off and is idle for (10 – PS) minutes when it starts
another PS minute sample period. For example, if
the PS setting is two minutes, the pump will run for 2
minutes before sampling the load temperature. If the
water temperature is within the selected dead band
temperature of the set point, the pump will shut off
for 10 – 2 = 8 minutes before beginning another pump
sampling cycle. Heating deadband is selectable in the
Service Menu while the Cooling deadband is nonadjustable and fixed at 5°F.
Low Pressure (LP)
Compressor operation will be disabled when the
normally closed low-pressure switch (set at 40 psi)
has opened for 30 continuous seconds (if the bypass
period has been satisfied). The Low Pressure switch is
bypassed (ignored) for two minutes after startup. The
LED display shall read “LP” only when the control has
completed two retries, and is in lockout. The pump
continues to operate throughout the retry period.
Freeze Detection (FP)
Compressor and loop pumps will be disabled if the
control senses that the refrigerant loop temperature
drops below the FP value (set in the service menu) for
30 continuous seconds (if the bypass period has been
satisfied). If the compressor and the loop pump outputs
are disabled because of this condition, the LED display
shall read “FP.” There is a two (2) minute by-pass timer
for the freeze detection at compressor start up.
Continuous Pump Mode (C)
If continuous pump mode (PS=C In Service Menu) is
selected, the control will respond immediately to a
recognized call or termination of call for heat or cool
subject to minimum run times and anti short cycle delays.
No-Retry Faults
High Temperature, Water Temperature Probe Open,
Water Temperature Probe Closed and Brown Out faults
prevent compressor operation for the duration of the
9
NSW SPECIFICATION CATALOG
Standard Board - Control Features cont.
Freeze Detection Probe Closed (dC)
Compressor and pump operation will be disabled when
the control senses that the freeze detection probe is
closed or has no resistance. The LED display shall read
“dC.”
Brown-Out (B0)
All operation will be disabled when the control voltage
falls below 18VAC for 10-15 continuous seconds.
fault. If the fault activity ceases while the system is
inactive, the fault code is cleared from the display and
operation is permitted.
High Temperature
Compressor operation will be disabled when the
control senses an entering load side water temperature
of 130° F regardless of mode.
Water Temperature Probe Open (PO)
Compressor and pump operation will be disabled when
the control senses that the water probe is open or has
infinite resistance. The LED display shall read “PO.”
Resetting Lockouts
To reset any lockout condition, place the unit into the
standby mode for at least 5 seconds. After the lockout
has been reset, the fault display will be turned off. Cycling
control power will also clear the display. Non-Retry Faults
must be cleared for the display and lockout to clear.
Water Temperature Probe Closed (HC)
Compressor and pump operation will be disabled when
the control senses that the water probe is closed or has
no resistance. The LED display shall read “HC.”
Power Down (power outage)
The controller will store its Service Menu settings and
current Mode selection in non-volatile memory so that
these settings are retained through any power outage.
Current operating conditions are not stored and the
controller must evaluate its current conditions.
Freeze Detection Probe Open (dO)
Compressor and pump operation will be disabled when
the control senses that the freeze detection probe is
open or has infinite resistance. The LED display shall
read “dO.”
External Control
Primary Mode
Secondary Mode
In dedicated heating or cooling units, the unit is controlled
by the internal controller. Compressor output is determined
by the entering load-side water temperature.
In dedicated heating or cooling units, secondary mode
allows the unit to be controlled by an external source.
Compressor output is determined by the Y1 input only.
The secondary output will be energized if two conditions
occur:
1. The initial temperature is greater than IC away from the
set point.
2. The change in temperature in a given period of time P is
less than d.
The secondary output will be energized after the following
condition occurs:
1. The change in temperature in a given period of time P is
less than d.
In reversible units, secondary mode allows the unit to
be controlled by an external source. Compressor output
is determined by the Y1 input and the reversing valve
is determined by the O input. In reversible units, the
jumper wire must be positioned across terminals 5 and 6.
Reversible units do not have a secondary input.
In a reversible unit, the unit is controlled by the internal
controller. Compressor output is determined by the
entering load-side water temperature. For reversible units,
the jumper wire must be positioned across terminals 6 and
7, (factory default set to this position). Reversible units do
not have a secondary output.
NOTES: SL in the configuration menu must be set to 1. P
and d must be setup for each secondary unit.
NOTES: SL in the configuration menu must be set to 0,
(factory default). All parameters should be checked for
each application on primary unit, (refer to the parameter
table).
WARNING: Reversible units cannot be
staged.
10
NSW SPECIFICATION CATALOG
Standard Control - Panel Configuration
Control Panel
The control panel allows you to access the service menu
on the unit. The control panel has three 7-segment LED
screens that display the:
• Water temperature
• Configuration menu
There are six (6) LED indicators that indicate when the
SECONDARY OUTPUT is active or the unit is on one of the
following modes:
• Standby Mode
• Heating Mode
• Cooling Mode
• Primary (Master) Mode
The control panel has both UP and DOWN (arrow) buttons
and a MODE button. The UP and DOWN buttons allow you
to change the set point or scroll through the configuration
menu. The MODE button allow you to change mode as well
as enter and exit parameters while in configuration mode.
Control Panel Configuration
The configuration menu allows you to properly set and
adjust all of the unit’s operating parameters to fit your
application.
Changing the Setpoint
1. Pressing the UP or DOWN arrow once will display the
setpoint.
2. The setpoint will flash.
3. When the setpoint is flashing, the UP and DOWN arrow
will change the setpoint by one degree.
4. In Primary mode, the heating temperature setpoint range
is adjustable from 60°F (15.5°C) to 130°F (54.4°C) with
an adjustable deadband range of 1° - 15°F. The cooling
setpoint temperature is adjustable from 0° (-17.7°C) to
85°F (29.4°C) with a fixed non-adjustable deadband of
5°F.
To enter configuration mode and configure parameters,
follow these procedures:
1. Hold down both the UP and DOWN buttons
simultaneously for five seconds, or until the LED screen
displays “LC”.
2. Press the UP or DOWN arrow until “50” is displayed.
3. Press the MODE button. The screen should display “SC”
to indicate the controller is in configuration mode.
4.Once in configuration mode, press the UP or DOWN
arrow to scroll through the menu.
5. Press the MODE button to enter the parameter. (Refer
to the parameter table below for a list of configurable
parameters.)
6. Once in the parameter, press the UP or DOWN arrow to
change the parameter.
7. Press the MODE button to return to the main menu.
NOTE: The controller will exit the configuration mode after
30 seconds if no key is pressed.
11
NSW SPECIFICATION CATALOG
Standard Control - Panel Configuration cont.
Remote Aquastat Secondary Mode (Y1)
In secondary mode the compressor output is determined by an external aquastat. The compressor shall engage 10 seconds
after the Y1 call has been received. The compressor shall de-activate 10 seconds after the Y1 has been removed. The
secondary output is controlled by a Derivative Controller. If the change in the water temperature is less than a selected
value (d) in a selected period of time (P), the secondary output shall activate.
Parameter Functions and Settings
Parameter
Function
Description
Factory
Setting
Range
Increments
SC
Calibrate
the Water
Sensor
This will allow the temperature displayed to be
adjusted to match a temperature reading from an
external source.
0°
-9° to 10°
1
dB
Dead Band This parameter is used to determine when
(Heating)
the compressor should be activated. If the
temperature is below the setpoint minus the dB
value (in heating mode) then the compressor will
activate. The cooling deadband is fixed at 5°F
and non-adjustable.
1°F
1° to 15°
1
CF
Celsius/
Fahrenheit
Selection
This parameter selects the units for which the
temperature will be displayed.
F
F or C
N/A
Freeze
Detection
There are three settings for this parameter; OL,
CL, and P. OL is the open loop setting which
corresponds to 32°F (0°C). CL is the closed loop
setting which is 15°F (-10°C). P is the process
setting which is 5°F (-15°C).
32°F
P,CL,OL
N/A
0
(Primary)
0 or 1
1 = Secondary
0 = Primary
FP
SL
Primary/
Secondary
Setting
Primary mode utilizes an internal aquastat to
determine the activity of the compressor. In
secondary mode the compressor output is
determined by an external aquastat.
Initial
Condition
This parameter is used to determine the state of
the secondary output of the primary unit. If the
actual water temperature is greater than the IC
value away from the set point, the secondary
output will be activated.
10°
0° to 20°
1°
This parameter is used to determine the state
of the secondary output of the primary and
secondary unit. If the change in temperature is
less than the d value the secondary output will
activate.
1°F
0° to 5°
1°
IC
Derivative
d
P
PS
Fd
Period
This determines how often the derivative will be
calculated.
5 min
1 to 5 min
1 min
Pump
Sampling
Time
Selection
This parameter determines how long the pump
is activated before the controller takes a sample
of the water temperature. The range of this
parameter is from 1 to 5 minutes and is factory
set to 3 minutes. The pump can also be set to run
continuously when PS is set to C.
3 min
1 to 5 min
or C
1 min
Freeze
Detection
Display
This displays the current temperature of the
freeze detection sensor.
N/A
0° to 130°
N/A
12
NSW SPECIFICATION CATALOG
Optional Controls
FX10 Control
The most unique feature is integrating the FX10 into the
Envision Series as both the heat pump and DDC controller
providing both a cost advantage and providing features
not typically found on WLHP controls. This integration
allows heat pump monitoring sensors, status and service
diagnosis faults to be communicated thru the DDC direct
to the building automation system (BAS), giving building
supervisors detailed and accurate information on every
piece of equipment without removing an access panel!
The FX10 control provides unparalleled capability
in several areas including performance monitoring,
energy management, and service diagnosis, and then
communicates it all thru standard DDC protocols like N2,
Lon and BACnet (MS/TP @ 19,200 Baud Rate).
Control
General Description
Application
Display/Interface
Protocol
FX10
The FX10 microprocessor control is self
contained control featuring LP, LOC, HP, LWT,
and condensate overflow fault modes can be
displayed on BAS system. Optional handheld
Medium User Interface (MUI) Control can be
used for additional setup or servicing.
Program customization is possible.
Cannot be integrated with
centralized building automation
systems.Software can be
customized for specific projects.
Optional Medium
User Interface (MUI)
can be used as a
field service tool.
Standalone
FX10 w/N2
FX10 Control functions as both unitary heat
pump control and DDC communication,
therefore detail operational and fault
information is available to BAS. Other
features are same as FX10 with addition of
Johnson Controls N2 compatibility.
Same as FX10 with Johnson
Controls N2 BAS
compatibility.
Optional Medium
User Interface (MUI)
can be used as a
field service tool.
Johnson
Controls
N2 network
FX10 w/LonWorks
FX10 Control functions as both unitary heat
pump control and DDC communication,
therefore detail operational and fault
information is available to BAS. Other
features are same as FX10 with addition of
LonWorks compatibility.
Same as FX10 with LonWorks
BAS compatibility.
Optional Medium
User Interface (MUI)
can be used as a
field service tool.
LonWorks
FX10 w/BACnet
FX10 Control functions as both unitary heat
pump control and DDC communication,
therefore detail operational and fault
information is available to BAS. Other
features are same as FX10 with addition of
BACnet compatibility.
Same as FX10 with BACnet
BAS compatibility.
Optional Medium
User Interface (MUI)
can be mounted or
used as field service
tool.
BACnet - MS/TP
(19,200 Baud Rate)
Due to communication speed,
no more than 30 units should
be connected to a single trunk
of the network.
13
NSW SPECIFICATION CATALOG
Optional Controls - FX10 cont.
FX10 Advanced Control Overview
• The Johnson Controls FX10 board is specifically designed
for commercial heat pumps and provides control of the
entire unit as well as input ports for Open N2, LonTalk,
BACnet (MS/TP @ 19,200 Baud Rate) communication
protocols as well as an input port for a user interface.
The user interface can be used to aid in diagnostics and
unit setup and is optional on all NSW units. A 16-pin low
voltage terminal board provides terminals for common
field connections. The FX10 Control provides:
• Operational sequencing
• High and low-pressure switch monitoring
• General lockout
• Freeze Detection Temperature Sensing
• Lockout mode control
• Emergency shutdown mode
• Random start and short cycle protection
Main FX 10 Board
Optional Plug-in Communication Modules (compatible with standard BAS protocols)
Short Cycle Protection
• Open N2
• LonTalk
• BACnet (MS/TP @ 19,200 Baud Rate, 30 unit max per
trunk line)
Allows a minimum compressor “off” time of five minutes
and a minimum “on” time of two minutes.
Display
One local display is optional on all NSW units. Up to
2 displays, either 1 local and 1 remote, or 2 remote. (A
2-display configuration requires identical displays.) Local
display can be up to 3 meters from the controller, power
supply, and data communication. Remote display can be up
to 300 meters from the controller. Remote display must be
independently powered with data communication done via
3 pole shielded cable.
Random Start
A delay of 1 to 120 seconds is generated after each powerup to prevent simultaneous startup of all units within a
building after the release from an unoccupied cycle or
power loss.
Emergency Shutdown
A field-applied dry contact can be used to place the control
into emergency shutdown mode. During this mode, all
outputs on the board are disabled.
Control Timing & Fault Recognition Delays
Lead compressor “ON” delay...........................................90 seconds
(not applicable for single compressor models)
Minimum compressor “ON” time....................................... 2 minutes
(except for fault condition)
Short cycle delay...................................................................... 5 minutes
Random start delay........................................................0-120 seconds
High pressure fault.................................................................. <1 second
Low pressure fault................................................................30 seconds
Freeze detection fault.................................................... 0-30 seconds
Low pressure/freeze fault bypass..................................... 2 minutes
Freeze Detection Temperature Limit
Field selectable for 15°F or 30°F (-9° or -0.56°C)
Installation Options
• Standalone controlled by standard aqua stat
• Integrated into BAS by adding communication module
Accessory Outputs
NOTES: Refer to Submittal Data SD1981, Application Guide
AGFX10, or BACnet Protocol Implementation Conformance
Statement for more information.
Quantity 2. Cycled with the compressor. Field selectable for
normally open (factory default) or normally closed through
the building automation system or user interface.
User Interface
4 x 20 backlit LCD
14
NSW SPECIFICATION CATALOG
Optional Controls - FX10 cont.
FX10 Microprocessor and BAS System
DDC Operation and Connection
Other optional network protocol boards that can be added
to the FX10 are:
• Johnson Control N2
• LonWorks
• BACnet
- MS/TP @ 19,200 Baud rate
- Limit devices to 40 on a single trunk line.
Control and Safety Feature Details
Emergency Shutdown
The emergency shutdown mode can be activated by a
command from a facility management system or a closed
contact on BI-2. The default state for the emergency
shutdown data point is off. When the emergency
shutdown mode is activated, all outputs will be turned
off immediately and will remain off until the emergency
shutdown mode is de-activated. The first time the
compressor starts after the emergency shutdown mode
has been de-activated, there will be a random start delay
present.
The FX10 is a microprocessor based control that not
only monitors and controls the heat pump but also can
communicate any of this information back to the building
automation system (BAS). This means that not only does
the control monitor the heat pump at the unit you can also
monitor and control many of the features over the BAS.
This clearly puts the FX10 in a class of its own.
The control will enumerate all fault conditions (HP, LP,
LOC, and Freeze Detection) over a BAS as well as display
them on a medium user interface (MUI). HP, LP, and Freeze
Detection faults can all be reset over a BAS. A Loss Of
Charge fault can not be reset or bypassed until the problem
has been corrected. A MUI is invaluable as a service tool for
the building service team.
Lockout Mode
Lockout mode can be activated by any of the following
fault signals: refrigerant system high pressure, refrigerant
system low pressure, or freeze detection. When any valid
fault signal remains continuously active for the length
of its recognition delay, the controller will go into fault
retry mode, which will turn off the compressor. After the
compressor short cycle delay, the compressor will attempt
to operate once again. If three consecutive faults occur
in 60 minutes, the unit will go into lockout mode, turning
off the compressor, enabling the alarm output until the
controller is reset. If the control faults due to the low
pressure input being open during the pre-compressor
startup check, the control will go into lockout mode
immediately, disabling the compressor from starting and
enabling the alarm output. The lockout condition can be
reset by powering down the controller, by a command from
the BAS, or by holding the ESC and Return keys on the user
interface for 5 seconds.
The unit can be commanded to run by applying Y1, Y2, and
O commands to the terminal board or commanded through
a BAS. The control board is wired with quick connect
harnesses for easy field change out of a faulty control
board. An alarm history can be viewed through the MUI and
will be held in memory until the unit is power cycled.
The FX10 control has unused analog and digital inputs for
field installed items such as water temperature or current
status switches. The control has unused binary and PWM
outputs that can be commanded over the BAS for field use.
A Medium User Interface (MUI) for control setup and
advanced diagnostics is standard on all NSW units.
Standard Features
•
•
•
•
•
•
•
•
•
•
Anti Short Cycle
High Pressure Protection
Low Pressure Protection
Freeze Detection
Loss of Charge Detection
Random Start
Display for diagnostics
Reset Lockout at disconnect or through BAS
2 Accessory outputs
Optional BAS add-on controls
15
NSW SPECIFICATION CATALOG
Optional Controls - FX10 cont.
NSW Freeze Detection
Sequence of Operation
The freeze detection sensor will monitor the liquid
refrigerant temperature entering the water coil in the
heating mode. If the temperature drops below the freeze
detection trip point for the recognition delay period, the
condition will be recognized as a fault. The freeze detection
trip point will be factory set for 30°F and will be field
selectable for 15°F by removing a jumper wire on BI-4
for the source and BI-5 for the load. The freeze detection
fault condition will be bypassed for 2 minutes at normal
compressor startup to allow the refrigeration circuit to
stabilize. If the freeze detection sensor becomes unreliable
at any time compressor operation will immediately be
suspended until the problem is corrected. This will be
displayed as an alarm on the BAS and the MUI. This alarm
will be reported as “Water Low Temp Limit”.
Power Fail Restart
When the controller is first powered up, the outputs will
be disabled for a random start delay. The delay is provided
to prevent simultaneous starting of multiple heat pumps.
Once the timer expires, the controller will operate normally.
Random Start Delay
This delay will be used after every power failure, as well as
the first time the compressor is started after the control
exits the unoccupied mode or the emergency shutdown
mode. The delay should not be less than 1 second and not
longer than 120 seconds. If the control is in test mode the
random start delay will be shortened to 5 seconds.
Compressor Minimum On Delay
High Pressure
The compressor minimum on delay will ensure that the
compressor output is enabled for a minimum of two (2)
minutes each time the compressor output is enabled. This
will apply in every instance except in the event the high
pressure switch is tripped or emergency shutdown then the
compressor output will be disabled immediately.
The high-pressure switch shall be a normally closed (NC)
switch that monitors the systems refrigerant pressure. If
the input senses the high-pressure switch is open it must
disable the compressor output immediately and count the
fault. The compressor minimum on time does not apply if
the high-pressure switch opens. The compressor will not
restart until the compressor short cycle time delay has
been satisfied.
Compressor Minimum Off Delay Time
The compressor minimum time delay will ensure that the
compressor output will not be enabled for a minimum
of five (5) minutes after it is disabled. This allows for
the system refrigerant pressures to equalize after the
compressor is disabled.
Low Pressure
The low-pressure switch shall be a normally closed (NC)
switch that monitors the systems refrigerant pressure.
The input shall be checked 5 seconds before compressor
start up and then ignored for the first 2 minutes after the
compressor output (BO-2) is enabled. If the switch is open
continuously for 30 seconds during compressor operation
the compressor output (BO-2) will be disabled. The
compressor will not restart until the compressor short cycle
time delay has been satisfied.
Heating Cycle
The control will run the unit in heating mode when there is
no command on the O/B terminal on the terminal board.
Cooling Cycle
The control will run the unit in cooling mode when there is
a command on the O/B terminal on the terminal board.
Alarm Outputs
The alarm output will be enabled when the control is in
the lockout mode and will be disabled when the lockout is
reset.
MUI Alarm History Reporting
If a fault occurs the fault will be recorded in history for
display on the medium user interface in the History Menu.
Each fault type will be displayed in the history menu with
a number between 0 and 3. A reading of 3+ will mean that
fault has occurred more than three times in the past. The
history menu can be cleared with a power cycle only. Alarm
date and time are not included in the history.
Test Mode
By holding the ESC and down arrow keys on the MUI for 5
seconds will put the control into test mode. In test mode
the random start delay and the compressor fixed on delay
time will both be shortened to 5 seconds and the reversing
valve will be allowed to cycle without shutting down the
compressor. If an MUI is connected to the control LED 8 will
flash and the words “Test Mode Enabled” will be shown on
the LCD display when the control is in test mode. Test mode
will be disabled after a power cycle, 30 minute timeout, or
by holding the ESC and Up arrow keys on the MUI.
16
NSW SPECIFICATION CATALOG
Optional Controls - FX10 cont.
Inputs and Outputs Configuration
Control Accessories
Field Selectable Options
• A99 Sensor
• MUI (LCD User interface) for diagnostics and
commissioning
• MUIK3 - Panel Mount, Portable
• MUIK4 - Wall Mount
Load and Source Freeze Detection Setpoint
The freeze detection setpoint input allows you to
adjust the freeze detection setpoint for either the load
or source sides of the heat pump. When the jumper
is installed on BI-5 the load freeze detection setpoint
is factory set for 30°F. When the jumper on BI-5 is
removed the load freeze detection setpoint will be 15°F.
When the jumper is installed on BI-4 the source freeze
detection setpoint is factory set for 30°F. When the
jumper on BI-4 is removed the source freeze detection
setpoint will be 15°F. NOTE: Piping circuit must be
antifreeze protected to the set levels or the warranty
will be voided.
Accessory Output
The Accessory Outputs will be energized 90 seconds
prior to the compressor output being energized. When
the compressor output is turned off the accessory
outputs will be deactivated immediately. The outputs
are selectable for normally open or normally closed
operation through the Medium User Interface or through
the Building Automation System.
17
NSW SPECIFICATION CATALOG
Envision Application Notes
The Closed Loop Heat Pump Concept
low because units can be added to the loop on an "as
needed basis"- perfect for speculative buildings. Installed
costs are low since units are self-contained and can be
located adjacent to the occupied space, requiring minimal
ductwork. Maintenance can be done on individual units
without system shut-down. Conditions remain comfortable
since each unit operates separately, allowing cooling in
one area and heating in another. Tenant spaces can be
finished and added as needed. Power billing to tenants
is also convenient since each unit can be individually
metered: each pays for what each uses. Nighttime and/or
weekend uses of certain areas are possible without heating
or cooling the entire facility. A decentralized system also
means if one unit should fault, the rest of the system will
continue to operate normally, as well as eliminating air
cross-contamination problems and expensive high pressure
duct systems requiring an inefficient electric resistance
reheat mode.
The basic principle of a water source heat pump is the
transfer of heat into water from the space during cooling,
or the transfer of heat from water into the space during
heating. Extremely high levels of energy efficiency are
achieved as electricity is used only to move heat, not to
produce it. Using a typical WaterFurnace Envision Series,
one unit of electricity will move four to five units of heat.
When multiple water source heat pumps are combined
on a common circulating loop, the ultimate in energy
efficiency is created: The WaterFurnace units on cooling
mode are adding heat to the loop which the units in
heating mode can absorb, thus removing heat from the
area where cooling is needed, recovering and redistributing
that heat for possible utilization elsewhere in the system. In
modern commercial structures, this characteristic of heat
recovery from core area heat generated by lighting, office
equipment, computers, solar radiation, people or other
sources, is an important factor in the high efficiency and
low operating costs of WaterFurnace closed source heat
pump systems.
The Envision Approach
There are a number of proven choices in the type of
Envision Series system which would be best for any given
application. Most often considered are:
Return Water
Vertical - Closed Loop/Ground Source
Heater/
Rejector
Pumps
Envision
Unit
Envision
Unit
Envision
Unit
Envision
Unit
Envision
Unit
Envision
Unit
Supply Water
In the event that a building's net heating and cooling
requirements create loop temperature extremes, Envision
Series units have the extended range capacity and
versatility to maintain a comfortable environment for
all building areas. Excess heat can be stored for later
utilization or be added or removed in one of three ways; by
ground-source heat exchanger loops: plate heat exchangers
connected to other water sources, or conventional cooler/
boiler configurations. Your WaterFurnace representative
has the expertise and computer software to assist in
determining optimum system type for specific applications.
• Closed Loop/Ground-Source Systems utilize the stable
temperatures of the earth to maintain proper water source
temperatures (via vertical or horizontal closed loop heat
exchangers) for Envision Series extended range heat
pump system. Sizes range from a single unit through many
hundreds of units. When net cooling requirements cause
closed loop water temperatures to rise, heat is dissipated
into the cooler earth through buried high strength plastic
pipe "heat exchangers." Conversely if net space heating
demands cause loop heat absorption beyond that heat
recovered from building core areas, the loop temperature
will fall causing heat to be extracted from the earth. Due to
the extended loop temperatures, AHRI/ISO 13256-1 Ground
Loop Heat Pumps are required for this application.
The Closed Loop Advantage
A properly applied water source heat pump system offers
many advantages over other systems. First costs are
18
NSW SPECIFICATION CATALOG
Envision Application Notes cont.
Plate Heat Exchanger - Closed Loop/Ground Water
Because auxiliary equipment such as a fossil fuel boiler
and cooling tower are not required to maintain the loop
temperature, operating and maintenance costs are very
low. Ground-source systems are most applicable in
residential and light commercial buildings where both
heating and cooling are desired, and on larger envelope
dominated structures where core heat recovery will not
meet overall heating loads. Both vertical and horizontally
installed closed-loops can be used. The land space required
for the "heat exchangers" is 100-250 sq. ft./ton on vertical
(drilled) installations and 750-1500 sq. ft./ton for horizontal
(trenched) installations. Closed loop heat exchangers can
be located under parking areas or even under the building
itself.
On large multi-unit systems, sizing the closed loop heat
exchanger to meet only the net heating loads and assisting
in the summer with a closed circuit cooling tower may be
the most cost effective choice.
• Closed Loop/Ground Water Plate Heat Exchanger
Systems utilize lake, ocean, well water or other water
sources to maintain closed loop water temperatures in
multi-unit Envision systems. A plate frame heal exchanger
isolates the units from any contaminating effects of the
water source, and allows periodic cleaning of the heat
exchanger during off peak hours.
Surface Water - Closed Loop/Ground Source
Operation and benefits are similar to those for groundsource systems. Due to the extended loop temperatures,
AHRI/ISO 13256-1 Ground Loop Heat Pumps are required
for this application. Closed loop plate heat exchanger
systems are applicable in commercial, marine, or industrial
structures where the many benefits of a water source heat
pump system are desired, regardless of whether the load is
heating or cooling dominated.
• Closed Loop/Ground-Source Surface Water Systems also
utilize the stable temperatures of Surface Water to maintain
proper water source temperatures for Envision Series
extended range heat pump systems. These systems have
all of the advantages of horizontal and vertical closed loop
systems. Due to the extended loop temperatures, AHRI/
ISO 13256-1 Ground Water or Ground Loop Heat Pumps are
required for this application.
In cooling dominated structures, the ground-source surface
water systems can be very cost effective especially where
local building codes require water retention ponds for short
term storage of surface run-off. Sizing requirements for the
surface water is a minimum of 500 sq. ft./ton of surface
area at a minimum depth of 8 feet. WaterFumace should be
contacted when designs for heating dominated structures
are required.
19
NSW SPECIFICATION CATALOG
Envision Application Notes cont.
Cooler/Boiler - Closed Loop
• Closed Loop /Cooler-Boiler Systems utilize a closed heat
recovering loop with multiple water source heat pumps
in the more conventional manner. Typically a boiler is
employed to maintain closed loop temperatures above
60°F and a cooling tower to maintain loop temperatures
below 90°F. These systems are applicable in medium
to large buildings regardless of whether the load is
heating or cooling dominated. Due to the moderate loop
temperatures, AHRI/ISO 13256-1 Water Loop Heat Pumps
are required for this application.
NSW Typical Application Piping
30 PSI
RELIEF VALVE
Pressure
Gauge
Back Flow Preventer /
Pressure Relief Valve
Air
Vent
Expansion
Tank
LOAD PUMP
HYDRONIC
LOAD
Air
Separator
Dielectric
Unions
HOT
COLD
(Piped in
series to
an electric
water heater)
GEO
STORAGE
TANK
PUMP
DOMESTIC
Dip Tube
FROM
DSH
TO
DSH
Source OUT
Dielectric
Unions
Vent Valve/
P/T Port**
1-1/2˝
FPT
P/T Ports
Ball Valve
P/T Ports
Source IN
Ball Valve
NOTES:
* A 30 PSI pressure relief valve (Part No: SRV30) should be used in
hydronic applications.
** Vent valve or P/T port at highest point in return line prior to ball valve.
WaterFurnace
NSW Series
20
NSW SPECIFICATION CATALOG
Envision Application Notes cont.
Baseboard Radiation
Heating with hot water is versatile because there are many
ways of distributing the heat through the building. The
options range from heavy cast iron radiators seen in older
buildings to modern, baseboard-style convection radiation,
and from invisible radiant floor heating to forced air
systems using fan coil units.
In existing systems, baseboard radiation is typically
designed to operate with 160° to 240°F water or steam.
Baseboard units are typically copper pipe with aluminum
fins along the length of the pipe, as shown in Figure 2. A
decorative cover is normally fitted over the fin tube.
A boiler is often used to make domestic hot water and to
heat swimming pools or hot tubs.
The operation of a baseboard radiation system depends on
setting up a convection current in the room: air is warmed
by the fin tube, rises and is displaced by cool air.
The various distribution systems have all been used
successfully with a geothermal heat pump system. When
designing or retrofitting an existing hydronic heating
system, however, the water temperature produced by the
heat pump is a major consideration.
The heating capacity of a baseboard system is a factor of
the area of copper tube and fins exposed to the air and
the temperature difference between the air and the fin
tube. The velocity and volume of water flowing through
the baseboard affects the temperature of the copper and
fins. Baseboard units are normally rated in heat output/
length of baseboard at a standard water temperature and
flow. Manufacturers can provide charts which will give the
capacities at temperatures and flows below the standard.
Figure 3 shows approximate heating capacities for fin tube
radiation using water from 100 to 130°F water.
In general, heat pumps are not designed to produce water
above 130°F. The efficiency decreases as the temperature
difference (ΔT) between the heat load (generally the earth
loop) and the supply water (to the distribution system)
increases. Figure 1 illustrates the effect of source and load
temperatures on the system. The heating capacity of the heat
pump also decreases as the temperature difference increases.
Baseboards are available using two or three fin tubes tiered
above one another in the same cabinet. With the additional
surface area, the air can be heated enough to set up a
convection current with water temperatures as low as 110°
to 130°F (see Figure 3).
When using the various types of hydronic heat distribution
systems, the temperature limits of the geothermal system
must be considered. In new construction, the distribution
system can easily be designed with the temperature limits in
mind. In retrofits, care must be taken to address the operating
temperature limits of the existing distribution system.
It is important to ensure that the heat output of the system is
adequate to meet the heat loss of the room or building at the
temperatures the geothermal system is capable of producing.
Figure 1: As the ΔT increases, the Coefficient of
Performance (COP) decreases. When the system produces
130°F water from a 30°F earth loop, the ΔT is 100°F, and
the COP is approximately 2.5. If the system is producing
water at 90°F, the ΔT is 60°F and the COP rises to about
3.8, an increase of over 50%.
Baseboard radiation is limited to space heating. Cooling is
typically provided by a separate, forced air distribution system.
Figure 2: Baseboard radiators are typically constructed of
copper tube with closely spaced aluminum fins attached
to provide more surface area to dissipate heat. Some of
the factors affecting the amount of heat given off by fin
tube radiators are the water temperature, water velocity, air
temperature, and fin spacing and size.
10
8
COP
Aluminum Fins
6
4
2
Enclosure
Copper Tube
0
0
20
40
60
80
Fin Tube
100
Temperature Difference
21
NSW SPECIFICATION CATALOG
Envision Application Notes cont.
Figure 4: Baseboard System
The heating capacity (Btuh/linear foot) of baseboard
radiators drop as the water temperature is reduced. The
heating capacity of most baseboard radiators is rated using
200°F water, 65°F air temperature. Listed in Figure 3 is the
range of heating capacities of baseboard radiators at the
standard temperatures and the range of capacities when
the temperatures are reduced to the operating range of
a heat pump system. Some of the factors that effect the
capacity of a radiator are:
• Size of the fins - range from 2.75 in. x 3 in. to 4 in. x 4 in.
• Fin spacing - 24 to 48 foot
• Diameter of copper tube - range from .75 in. to 2 in.
• Fin material - aluminum or steel
• Configuration and height of the enclosure
• Height unit is mounted from the floor
• Water flow through the radiator
Steel
Radiator
Hot
Water
Radiators in various
configurations and sizes
Radiant Floor Heating
Radiant floor heating has been the system of choice in
many parts of Europe for some time. Manufacturers have
developed tubing designed for installation in concrete
floors and raised wood floors.
Generally, the smaller fins with fewer fins/foot will have
lower heating capacity. Larger copper tube diameter and
aluminum fins will have a higher capacity. Higher water flow
will increase capacity. Adding a second fin tube to the same
enclosure will increase the capacity by 50 to 60%. Adding
two fin tubes will increase the capacity by 75 to 80%.
Floor heating systems have several benefits in residential,
commercial and industrial heating applications. In a
building with a radiant floor heating system, the entire floor
acts as a heat source for the room. People feel comfortable
with lower air temperatures if their feet are warm. Typically
the space will feel comfortable with air temperatures as low
as 65°F. Since the heat loss of a building is directly related
to the temperature difference (ΔT) between the inside and
outside, a lower ΔT means the heat loss is lower.
Figure 3: Heating output per linear foot
Entering Air Temperatures
Average
Water Temp.
55°F
65°F
70°F
110°F
190-380
160-320
150-300
120°F
240-480
205-410
195-390
130°F
295-590
265-532
245-490
Air temperatures in a room with a forced air heating system
tend to be warmer nearer to the ceiling than the floor (see
Figure 5). The hot air rises and creates a greater pressure
imbalance between the inside and outside. The infiltration
increases, resulting in a higher heat loss. Air temperatures
in a room with radiant floor heating tend to be warmer at
the floor than the ceiling, helping to cut down on infiltration
in the building. The energy savings in a building with
radiant floor heating can range from 10 to 20%.
Cast Iron Radiation
Retrofit applications for hydronic/geothermal heat pump
systems are often required to work with existing cast iron
radiators or their replacements (see Figure 4). Typically,
cast iron radiator systems operate with water temperatures
of 125° to 160°F.
Figure 5: Temperature Comparison
These temperatures are higher than geothermal waterto-water heat pumps are capable of providing. Cast iron
radiators can work with geothermal systems, provided the
heat output of the radiators will meet the maximum heat
loss of the building at the lower temperatures.
If the insulation of the building has been upgraded since
the original installation, it is possible that the lower
temperatures will be able to meet the reduced heat loss of
the building.
22
NSW SPECIFICATION CATALOG
Envision Application Notes cont.
A floor heat system can be designed to heat a building with
water temperatures as low as 90°F.
Some pipe manufacturers include an oxygen diffusion
barrier in the pipe to prevent oxygen diffusion through the
pipe. Good system design and careful installation, however,
will eliminate virtually all of the problems encountered
with air in the system. Like earth loop design, it is important
to design the system to facilitate flushing the air initially
and ensuring that the flows can be balanced properly.
Figure 1 shows how a geothermal system operates more
efficiently with a lower ΔT between the source and
the load. With only a 60°F temperature difference, a
geothermal heat pump will operate at COPs over 4, about
20% higher than a forced air geothermal system in the
same installation.
Fan Coil Units and Air Handlers
Fan coil units, air handlers, force flow units, etc. are all
basically a hot water radiator or coil (usually copper piping
with aluminum fins) with a fan or blower to move the
air over the coil (see Figure 6). The term “fan coil units”
typically applies to smaller units that are installed in the
zone or area in which heating (or cooling) is needed. They
are available in many different configurations, sizes and
capacities. Fan coil units are designed to be connected to
a ductwork system and can be used to replace a forced air
furnace. Other units are designed for use without ductwork
and are mounted in a suspended ceiling space with only
a grill showing in place of a ceiling tile. Some can be
mounted on a wall under a window, projecting 8 in. to 10
in. into the room or even flush to the wall surface, mounted
between wall studs. Some are available with or without
finished, decorative cabinets. For industrial applications,
inexpensive “unit heaters” are available, with only a coil and
an axial fan. Fan coil units and unit heaters are normally
available with air handling capacities of 200 to 2,000 cfm.
Some of the factors affecting the heating capacity of a
floor heating system are as follows:
• The type of finish flooring
• The spacing of the pipe
• The water flow through the pipe
• The temperature of the supply water
• The floor material (wood, concrete or poured Gypcrete™)
• Insulation value under the floor
• The piping layout
The spacing of the pipe in residential applications can
vary from 4 in. to 12 in. If the spacing is too large, the
temperature of the floor can vary noticeably. In industrial
applications, variation in the floor temperature is not as
important, and the spacing is related directly to the heat
output required.
Radiant floor heating systems work well with geothermal
heat pump systems. For efficient operation, the system
must be designed with the lowest possible water
temperatures.
The term “air handler” normally applies to larger units,
mounted in mechanical rooms, mechanical crawl spaces
or rooftops. They typically have an air handling capacity
of over 2,000 cfm and are available for capacities of up to
50,000 cfm. Air handlers are typically built for a specific
installation and are available with many different types of
heating and cooling coils. They can include additional coils
for heating make-up air, dehumidification and exhaust air
heat recovery.
There are some drawbacks with a radiant floor heating
system. Air conditioning is only possible by adding a
second system using forced air. This can add substantial
cost to an installation where air conditioning is also needed.
A separate air handling system is needed to clean the air or
to introduce fresh air.
Industrial buildings, especially those with high ceilings and
large overhead doors, have an advantage with a radiant
floor heating system. Heat is stored in the concrete floor,
and when a door is opened, the stored heat is immediately
released to the space. The larger the ΔT between the air in
the space and the floor, the quicker the floor releases its
heat to the space.
Fan coils and air handlers typically have one or two coils
and a blower. Air is heated by hot water circulated through
the hot water coil. Chilled water is circulated through the
coil if air conditioning is needed. Blowers can be provided
to fit various applications, with or without duct-work.
Unit heaters typically use axial fans in applications where
ductwork is not needed.
Maintenance garages benefit from radiant floor heating
systems. Cold vehicles brought into the garage are warmed
from underneath. The snow melts off the vehicle and dries
much more quickly than when heated from above.
Fan coil units and air handlers are used in many different
applications. They have been used to heat buildings
using water temperatures as low as 90° to 100°F. New
systems can be designed to operate very efficiently with a
geothermal system.
23
NSW SPECIFICATION CATALOG
Envision Application Notes cont.
Controls
Figure 6: Fan Coils
Blower
Chilled Water Coil
The control of a mechanical system determines how
it functions. For the building to work efficiently and
comfortably, the building owner or manager must
understand what the system is doing and how to control it.
As Figure 1 shows, the efficiency of a heat pump is a factor
of the difference in temperature between the source and
the load. The heat loss or heat gain of a building varies with
the weather and the use of the building. As the outdoor
temperature decreases, the heat loss of the building
increases. When the ventilation system is started up,
the heating or cooling loads increase. As the occupancy
increases, lighting or the solar gain increases, and the
cooling load increases. At times the building may require
virtually no heating or cooling.
Hot Water Coil
Cooling with a Hydronic System
Cooling a building with an existing radiant hydronic heating
system can be a challenge. If baseboard, cast iron radiators
or a radiant floor heating system is cooled lower than the
dew point, condensation will form on the floor or drip off
the radiators.
With hydronic heating and cooling distribution equipment,
whether it is baseboard radiation, fan coil units or
radiant floor heating, the output of the equipment is
directly related to the temperature and velocity of the
water flowing through it. Baseboard radiation puts out
approximately 50% less heat with 110°F water than with
130°F water. The same is true with fan coil units and radiant
floor heating.
There is generally minimal or no ductwork for ventilation
in existing buildings with radiant hydronic heat. Typically,
cooling is provided with separate units where it is needed.
This is often done using through-the-wall or window air
conditioners, ductless split air conditioning units, or rooftop
units.
A water-to-water heat pump system can provide water to
ducted or unducted fan coil units. The system can provide
chilled water to cool the building, as well as hot water for
the heating system when needed.
If a system is designed to meet the maximum heat loss of
a building with 130°F water, it follows that if the heat loss
is 50% lower when the outdoor temperature is higher and
the building has high internal gains because of lighting and
occupancy, the lower heat loss can be met with 110°F water.
This greatly increases the COP of the heat pumps.
A limited amount of cooling can be done by circulating
chilled water through the piping in the floor. This can be
effective in buildings with high solar loads or lighting
loads, where much of the heat gain is radiant heat being
absorbed by the floor. Cooling fresh air used for ventilation
as it is brought into the building, using a chilled water coil,
can sometimes provide the additional cooling needed. Care
must be taken to avoid cooling the floor below the dew
point because condensation may form on the floor.
The same control strategy is equally effective in cooling.
During peak loads, water chilled to 40°F may be needed;
at other times 55°F water will provide adequate cooling.
Significant increases in the EER can be achieved. Latent
loads must always be considered when using warmer water.
Buildings with fan coil units and air handlers can generally
be easily retrofitted for cooling. Often it is simply a matter
of adding a cooling coil to the existing air handlers and
fan coil units. Water-to-water heat pumps can provide hot
water for the heating coils as well as chilled water for the
air conditioning.
24
NSW SPECIFICATION CATALOG
Dimensional Data
A
C
T
S
Q
N
P
R
I
B
Z
E
U
W
L
K
V
M
A
Model
018
025
040
050
060 &
075
in.
cm.
in.
cm.
in.
cm.
in.
cm.
in.
cm.
018
Width
23.5
59.7
23.5
59.7
31.0
78.7
31.0
78.7
31.0
78.7
26.1
66.3
26.1
66.3
26.2
66.5
26.2
66.5
26.2
66.5
19.5
49.5
19.5
49.5
22.0
55.9
22.0
55.9
22.0
55.9
025
040
050
060 &
075
Load
Liquid In
in.
cm.
in.
cm.
in.
cm.
in.
cm.
in.
cm.
C
Height
2.4
6.1
2.4
6.1
1.6
4.1
1.8
4.6
1.8
4.6
N
Load
Liquid
Out
2.4
6.1
2.4
6.1
2.8
7.0
3.6
9.1
4.0
10.2
6/18/09
Electrical Knockouts
J
K
L
1/2 in. 3/4 in. 3/4 in.
cond
cond
cond
Water Connections
Depth
M
Model
B
O
D
E
F
Load
Liquid
In
10.0
25.4
10.0
25.4
2.1
5.3
2.2
5.6
2.4
6.1
Load
Liquid
Out
22.2
56.4
22.2
56.4
19.6
49.8
20.6
52.3
23.0
58.4
Source
Liquid
In
10.0
25.4
10.0
25.4
2.1
5.3
2.2
5.6
2.4
6.1
P
Source
Source
Liquid
Liquid In
Out
2.4
2.4
6.1
6.1
2.4
2.4
6.1
6.1
2.8
1.6
7.0
4.1
3.6
1.8
9.1
4.6
4.0
1.8
10.2
4.6
G
H
I
Source
Liquid HWG In
Out
22.2
56.4
22.2
56.4
19.6
23.9
49.8
60.7
20.6
23.9
52.3
60.7
23.0
20.6
58.4
52.3
Water Connections
Q
R
HWG
Out
23.9
60.7
23.9
60.7
20.6
52.3
S
T
HWG In
HWG
Out
Power
Supply
Low
Voltage
2.0
5.1
2.1
5.3
4.2
10.7
1.8
4.6
1.8
4.6
1.4
3.6
3.5
8.9
3.5
8.9
4.8
12.2
4.8
12.2
4.8
12.2
2.9
7.4
2.9
7.4
4.8
12.2
4.8
12.2
4.8
12.2
NOTE: Plastic front panel extends 1.4 in. (3.56 cm) beyond front of cabinet.
25
H
O
NOTE: Plastic front panel extends 1.4" (3.56 cm) beyond front of cabinet.
Overall Cabinet
G
F
D
X
Y
J
Load
Water
FPT
1 in.
25.4 mm
1 in.
25.4 mm
1 in.
25.4 mm
1-1/4 in.
31.8 mm
1-1/4 in.
31.8 mm
U
Side
Power
Supply
14.9
37.8
14.9
37.8
17.1
43.4
17.1
43.4
17.1
43.4
Source
HWG
Low
Water
Water
Voltage
FPT
FPT
1 in.
16.0
25.4 mm
40.6
1 in.
16.0
25.4 mm
40.6
1 in.
1/2 in.
17.1
25.4 mm 12.7 mm
43.4
1-1/4 in. 1/2 in.
17.1
31.8 mm 12.7 mm
43.4
1-1/4 in. 1/2 in.
17.1
31.8 mm 12.7 mm
43.4
V
Side
Power
Supply
2.6
6.6
2.6
6.6
2.8
7.0
2.8
7.1
2.8
7.1
W
Ext
Pump
Power
Supply
14.2
36.1
14.2
36.1
14.8
37.6
14.8
37.6
14.8
37.6
14.2
36.1
14.2
36.1
17.1
43.4
17.1
43.4
17.1
43.4
Electrical Knockouts
X
Y
Ext
Pump
Ext
Pump
Power
Supply
2.1
5.3
2.1
5.3
14.9
37.8
14.9
37.8
14.9
37.8
1.8
4.4
1.8
4.4
4.8
12.2
4.8
12.2
4.8
12.2
2.9
7.4
2.9
7.4
4.8
12.2
4.8
12.2
4.8
12.2
Z
Power
Supply
4.1
10.4
4.1
10.4
17.1
43.4
17.1
43.4
17.1
43.4
8/6/10
NSW SPECIFICATION CATALOG
Electrical Data
Model
018
025
040
050
060
075
NOTES:
Rated
Voltage
Compressor
Voltage
Min/Max
RLA
LRA
LRA*
Load
Pump
Source
Pump
Total Unit
FLA
Min Ckt
Amp
Maximum
Fuse/HACR
30
208-230/60/1
197/254
10.3
51.0
17.9
1.8
5.4
17.5
20.1
208-230/60/1
197/254
13.5
61.0
21.4
1.8
5.4
20.7
24.1
35
265/60/1
239/292
10.9
58.0
-
-
-
10.9
13.6
20
460/60/3
414/506
4.5
27.0
-
-
-
4.5
5.6
10
208-230/60/1
197/254
20.0
115.0
40.3
1.8
5.4
27.2
32.2
50
208-230/60/3
197/254
12.8
95.0
-
-
-
12.8
16.0
25
460/60/3
414/506
6.4
45.0
-
-
-
6.4
8.0
10
575/60/3
518/632
5.4
38.0
-
-
-
5.4
6.8
10
208-230/60/1
197/254
26.4
134.0
46.9
1.8
5.4
33.6
40.2
60
265/60/1
239/292
19.9
130.0
-
-
-
19.9
24.9
40
208-230/60/3
197/254
16.0
110.0
-
-
-
16.0
20.0
35
460/60/3
414/506
7.8
52.0
-
-
-
7.8
9.8
15
575/60/3
518/632
5.7
38.9
-
-
-
5.7
7.1
10
70
208-230/60/1
197/254
30.1
145.0
50.8
1.8
5.4
37.3
44.8
208-230/60/3
197/254
17.3
120.0
-
-
-
17.3
21.6
35
460/60/3
414/506
9.6
70.0
-
-
-
9.6
12.0
20
575/60/3
518/632
8.0
53.0
-
-
-
8.0
10.0
15
208-230/60/1
197/254
26.9
145.0
50.8
1.8
5.4
34.1
40.8
60
208-230/60/3
197/254
22.4
190.0
-
-
-
22.4
28.0
50
460/60/3
414/506
12.2
87.0
-
-
-
12.2
15.3
25
575/60/3
518/632
9.6
62.0
-
-
-
9.6
12.0
20
8/4/10
All fuses type “D” time delay (or HACR circuit breaker in USA).
Source pump amps shown are for up to a 1/2 HP pump.
Load pumps amps shown are for small circulators.
*LRA with optional IntelliStart installed (208-230/60/1).
Physical Data
Model
018
025
040
050
060
075
44.0 [1.25]
58.0 [1.64]
70 [1.98]
.52 [1.97]
.89 [3.38]
68 [1.93]
104 [2.95]
110 [3.12]
1.0 [3.94]
1.4 [5.25]
1.6 [6.13]
1.6 [6.13]
Compressor (1 each)
Factory Charge R410a, oz [kg]
Coax & Piping Water Volume - gal [l]*
Scroll
Weight - Operating, lb [kg]
191 [86.6]
225 [102.1]
290 [131.5]
325 [147.4]
345 [156.5]
345 [156.5]
Weight - Packaged, lb [kg]
213 [96.6]
247 [112.0]
305 [138.3]
340 [154.2]
360 [163.3]
360 [163.3]
8/6/10
NOTE: * Source or load side only.
26
NSW SPECIFICATION CATALOG
Antifreeze Correction
Catalog performance can be corrected for antifreeze use. Please use the following table and note the example given.
Antifreeze Type
Antifreeze %
by wt
Ethylene Glycol
Propylene Glycol
Ethanol
Methanol
Cooling
Source
Load
Source
Pressure
Drop
80 [26.7]
30 [-1.1]
50 [10.0]
90 [32.2]
30 [-1.1]
0
1.000
1.000
1.000
1.000
1.000
10
0.990
0.973
0.976
0.991
1.075
20
0.978
0.943
0.947
0.979
1.163
30
0.964
0.917
0.921
0.965
1.225
40
0.953
0.890
0.897
0.955
1.324
50
0.942
0.865
0.872
0.943
1.419
10
0.981
0.958
0.959
0.981
1.130
20
0.967
0.913
0.921
0.969
1.270
EWT - °F [°C]
Water
Heating
Load
30
0.946
0.854
0.869
0.950
1.433
40
0.932
0.813
0.834
0.937
1.614
50
0.915
0.770
0.796
0.922
1.816
10
0.986
0.927
0.945
0.991
1.242
20
0.967
0.887
0.906
0.972
1.343
30
0.944
0.856
0.869
0.947
1.383
40
0.926
0.815
0.830
0.930
1.523
50
0.907
0.779
0.795
0.911
1.639
10
0.985
0.957
0.962
0.986
1.127
20
0.969
0.924
0.929
0.970
1.197
30
0.950
0.895
0.897
0.951
1.235
40
0.935
0.863
0.866
0.936
1.323
50
0.919
0.833
0.836
0.920
1.399
WARNING: Gray area represents antifreeze concentrations greater than 35% by weight and should
be avoided due to the extreme performance penalty they represent.
Antifreeze Correction Example
Antifreeze solution is propylene glycol 20% by weight for the source and methanol 10% for the load. Determine the
corrected heating at 30°F source and 80°F load as well as pressure drop at 30°F for an Envision Series NSW050. Also,
determine the corrected cooling at 90°F source and 50°F load.
The corrected heating capacity at 30°F/80°F would be:
46,700 MBTUH x 0.913 x 0.985 = 41,998 MBTUH
The corrected cooling capacity at 90°F/50°F would be:
44,200 x 0.969 x 0.962 = 41,202 MBTUH
The corrected pressure drop at 30°F and 15 GPM would be:
5.2 psi x 1.270 = 6.60 psi
27
NSW SPECIFICATION CATALOG
AHRI/ISO 13256-2 Performance Ratings
English (IP) Units
Water Loop Heat Pump
Cooling
Heating
86°F Source
68°F Source
53.6°F Load
104°F Load
Flow Rate
Model
018
025
040
050
060
075
Capacity
Modulation
Single
Single
Single
Single
Single
Single
Load
Gpm
Source
Gpm
Capacity
Btuh
EER
Btuh/W
Capacity
Btuh
COP
Capacity
Btuh
EER
Btuh/W
Capacity
Btuh
COP
5
7
10
15
18
19
5
7
10
15
18
19
16,400
23,700
35,900
49,800
55,400
66,000
14.0
13.6
15.5
13.9
13.6
12.3
22,200
32,800
47,900
65,000
78,000
93,100
4.5
4.6
4.8
4.4
4.7
4.2
18,800
26,700
40,900
55,600
62,500
74,100
22.9
21.2
23.4
21.6
20.6
18.0
18,500
27,100
39,100
54,200
63,200
77,100
3.7
3.8
3.9
3.7
3.8
3.5
Flow Rate
Model
018
025
040
050
060
075
Capacity
Modulation
Single
Single
Single
Single
Single
Single
Ground Water Heat Pump
Cooling
Heating
59°F Source
50°F Source
53.6°F Load
104°F Load
Cooling
77°F Source
53.6°F Load
Energy
Star
Compliant
Yes
Yes
Yes
Yes
Yes
No
Ground Loop Heat Pump
Heating
32°F Source
104°F Load
Load
Gpm
Source
Gpm
Capacity
Btuh
EER Btuh/W
Capacity
Btuh
COP
5
7
10
15
18
19
5
7
10
15
18
19
17,300
24,700
37,700
51,500
58,000
68,400
16.6
15.8
17.5
16.4
15.7
14.0
14,700
22,000
30,500
44,200
50,100
61,500
3.0
3.0
3.1
3.1
3.0
2.9
Energy
Star
Compliant
Yes
Yes
Yes
Yes
Yes
No
12/16/09
NOTE: All ratings based upon 208V operation.
Pressure Drop
Model
018R*
025R*
040H/R
050H/R
060H/R
075H/R
GPM
3.0
4.0
5.0
6.0
4.0
5.5
7.0
8.5
5.0
7.5
10.0
12.5
8.0
11.5
15.0
18.5
9.0
13.5
18.0
22.5
10.0
14.5
19.0
23.5
30°F
0.5
1.1
1.6
2.1
0.7
1.3
1.9
2.6
0.9
2.3
3.7
5.0
1.7
3.6
5.6
8.3
1.4
4.2
6.9
10.7
3.2
5.5
7.9
11.5
Pressure Drop (psi)
60°F
80°F
100°F
0.4
0.4
0.3
0.9
0.9
0.8
1.4
1.4
1.3
1.9
1.9
1.8
0.6
0.4
0.3
1.1
0.9
0.7
1.7
1.5
1.3
2.4
2.2
2.0
0.6
0.6
0.5
2.1
2.0
1.9
3.5
3.3
3.2
4.7
4.4
4.2
1.4
1.4
1.3
3.4
3.2
3.0
5.4
5.0
4.6
8.1
7.6
7.2
1.1
1.0
1.0
3.9
3.5
3.1
6.7
6.0
5.2
10.5
10.0
9.4
3.0
2.8
2.7
5.3
5.1
4.9
7.6
7.3
7.1
11.3
11.0
10.8
NOTES: Temperatures are Entering Water Temperatures
*Domestic water heating units source side
pressure drop and reversible units load and
source pressure drop.
NSW Vented Only Load Side
120°F
0.3
0.8
1.3
1.8
0.3
0.6
1.2
1.9
0.5
1.8
3.0
4.0
1.3
2.8
4.2
6.8
0.9
2.7
4.5
8.7
2.5
4.7
6.8
10.5
8/9/10
Model
018H
025H
GPM
3.0
4.0
5.0
6.0
4.0
5.5
7.0
8.5
60°F
0.5
1.4
2.2
3.0
1.3
3.0
4.6
6.7
Pressure Drop (psi)
80°F
100°F
0.4
0.4
1.3
1.2
2.1
2.1
2.9
2.9
1.3
1.2
2.9
2.8
4.4
4.3
6.5
6.4
NOTES: Temperatures are Entering Water Temperatures.
Double wall vented coax for heating potable water
28
120°F
0.3
1.2
2.0
2.8
1.2
2.7
4.1
6.2
7/13/09
NSW SPECIFICATION CATALOG
Reference Calculations
Heating Calculations:
LWT = EWT -
Cooling Calculations:
HE
GPM x C*
HE = C* x GPM x (EWT - LWT)
LWT = EWT +
HR
GPM x C*
HR = C* x GPM x (LWT - EWT)
NOTE: * C = 500 for pure water, 485 for brine.
Legend and Notes
Abbreviations and Definitions
ELT
= entering load fluid temperature to heat pump
kW
= kilowatts
SWPD = source coax water pressure drop
EST
= entering source fluid temperature to heat pump
LLT
= leaving load fluid temperature from heat pump
HE
= heat extracted in MBTUH
PSI
= pressure drop in pounds per square inch
LST
= leaving source fluid temperature from heat pump
LGPM = load flow in gallons per minute
HC
= total heating capacity in MBTUH
FT HD = pressure drop in feet of head
COP = coefficient of performance, heating [HC/kW x 3.413]
LWPD = load coax water pressure drop
EER = energy efficiency ratio, cooling
LWT
= leaving water temperature
TC
= total cooling capacity in MBTUH
EWT
= entering water temperature
HR
= heat rejected in MBTUH
Brine
= water with a freeze inhibiting solution
Notes to Performance Data Tables
The following notes apply to all performance data tables:
•
•
•
•
Three flow rates are shown for each unit. The lowest flow rate shown is used for geothermal open loop/well water systems with a minimum of 50°F EST. The middle flow rate shown is the minimum geothermal closed loop flow rate.
The highest flow rate shown is optimum for geothermal closed loop systems and the suggested flow rate for boiler/
tower applications.
Entering water temperatures below 40°F assumes 15% antifreeze solution.
Interpolation between ELT, EST, and GPM data is permissible.
Operation in the gray areas is not recommended.
29
NSW SPECIFICATION CATALOG
NSW018 - Performance Data
Cooling Capacity
Source
EST
°F
Flow
GPM
3
30
4
5
3
50
4
5
3
Load Flow-3 GPM
ELT
°F
LLT
°F
TC
MBTUH
Power
kW
HR
MBTUH
Load Flow-4 GPM
EER
LST
°F
LLT
°F
4
4
4
LST
°F
19.8
29.7
43.6
40.1
18.1
0.61
20.1
29.8
43.8
42.5
18.3
0.61
20.4
30.0
44.0
0.59
21.3
32.5
44.6
59.3
19.4
0.60
21.5
32.6
44.8
61.9
19.6
0.60
21.6
32.7
44.9
90
75.8
20.7
0.59
22.7
35.3
45.6
78.6
20.8
0.59
22.8
35.4
45.7
81.4
20.9
0.59
22.9
35.4
45.7
110
94.7
22.2
0.58
24.2
38.3
46.6
97.8
22.2
0.58
24.2
38.3
46.6
100.8
22.2
0.58
24.2
38.3
46.6
50
37.7
18.0
0.58
19.9
30.9
40.9
40.0
18.2
0.58
20.2
31.2
41.1
42.4
18.4
0.59
20.4
31.5
41.2
70
56.7
19.3
0.57
21.3
33.8
41.7
59.3
19.5
0.57
21.4
34.0
41.8
61.9
19.6
0.58
21.6
34.1
41.9
90
75.8
20.7
0.56
22.6
36.7
42.4
78.6
20.8
0.56
22.7
36.8
42.5
81.4
20.9
0.57
22.8
36.9
42.5
110
94.9
22.0
0.56
23.9
39.6
43.2
97.9
22.1
0.56
23.9
39.7
43.2
100.9
22.1
0.56
24.0
39.8
43.2
38.4
50
37.6
18.1
0.56
20.0
32.3
38.3
40.0
18.3
0.56
20.2
32.7
38.3
42.4
18.5
0.56
20.4
33.0
70
56.7
19.3
0.55
21.2
35.2
38.7
59.3
19.5
0.55
21.4
35.5
38.8
61.9
19.7
0.55
21.5
35.8
38.9
90
75.9
20.6
0.54
22.4
38.1
39.2
78.6
20.7
0.54
22.5
38.3
39.3
81.4
20.8
0.54
22.7
38.6
39.4
110
95.0
21.8
0.53
23.6
41.1
39.7
98.0
21.9
0.53
23.7
41.3
39.8
100.9
22.0
0.53
23.8
41.5
39.8
50
38.4
16.9
0.80
19.6
22.9
63.4
40.5
17.3
0.80
20.0
23.3
63.8
42.7
17.8
0.80
20.5
23.7
64.1
70
56.3
19.9
0.80
22.6
26.5
65.5
58.9
20.2
0.80
22.9
26.8
65.8
61.5
20.6
0.80
23.3
27.2
66.0
90
74.3
22.9
0.80
25.6
30.1
67.6
77.3
23.1
0.79
25.8
30.4
67.8
80.4
23.4
0.79
26.1
30.7
67.9
110
92.2
25.9
0.80
28.6
33.8
69.7
95.7
26.1
0.79
28.8
34.0
69.8
99.2
26.2
0.79
28.9
34.2
69.9
50
38.3
17.0
0.77
19.6
22.0
60.8
40.5
17.4
0.77
20.0
22.6
61.0
42.6
17.8
0.77
20.5
23.1
61.2
70
56.3
19.9
0.77
22.5
26.0
62.4
58.9
20.3
0.76
22.9
26.5
62.6
61.5
20.6
0.76
23.2
27.0
62.8
64.3
90
74.3
22.9
0.76
25.5
30.2
64.0
77.3
23.1
0.76
25.7
30.5
64.2
80.4
23.4
0.76
25.9
30.9
110
92.2
25.9
0.75
28.4
34.4
65.7
95.7
26.0
0.75
28.6
34.6
65.7
99.2
26.1
0.75
28.7
34.8
65.8
50
38.2
17.1
0.75
19.7
24.7
58.1
40.4
17.5
0.75
20.0
25.3
58.3
42.6
17.9
0.74
20.4
25.9
58.4
70
56.3
20.0
0.74
22.5
28.8
59.3
58.9
20.3
0.73
22.8
29.2
59.4
61.5
20.6
0.73
23.1
29.7
59.5
90
74.3
22.9
0.72
25.4
33.0
60.5
77.3
23.1
0.72
25.6
33.3
60.5
80.4
23.3
0.72
25.8
33.6
60.6
110
92.3
25.8
0.71
28.2
37.3
61.6
95.8
25.9
0.71
28.3
37.5
61.7
99.3
26.1
0.71
28.5
37.7
61.7
50
39.1
15.9
0.99
19.3
16.1
83.3
41.0
16.6
0.99
19.9
16.7
83.7
42.9
17.2
0.99
20.6
17.4
84.1
70
55.9
20.5
1.00
23.9
20.5
86.4
58.5
21.0
1.00
24.4
21.1
86.8
61.1
21.5
0.99
24.9
21.7
87.1
50
39.0
16.0
0.97
19.3
16.6
80.6
40.9
16.6
0.96
19.9
17.3
80.9
42.9
17.3
0.96
20.5
18.1
81.3
70
55.9
20.6
0.96
23.8
21.4
83.1
58.5
21.1
0.96
24.3
22.0
83.4
61.1
21.6
0.95
24.8
22.6
83.7
90
Operation not recommended
90
Operation not recommended
50
38.9
16.1
0.94
19.3
17.1
78.0
40.9
16.7
0.93
19.9
18.0
78.2
42.9
17.3
0.92
20.4
18.8
78.4
70
55.8
20.7
0.92
23.8
22.4
79.8
58.5
21.1
0.92
24.2
23.0
80.0
61.1
21.6
0.91
24.7
23.7
80.2
90
Operation not recommended
50
40.4
14.0
1.30
18.4
11.8
102.7
42.1
14.5
1.30
19.0
12.3
103.0
43.8
15.1
1.30
19.5
12.7
103.4
70
57.4
18.3
1.30
22.7
15.3
105.6
59.8
18.7
1.30
23.2
15.7
105.9
62.1
19.2
1.30
23.6
16.1
106.2
90
Operation not recommended
50
40.3
14.1
1.27
18.4
11.2
100.1
42.0
14.6
1.26
19.0
11.6
100.4
43.8
15.2
1.26
19.5
12.0
100.7
70
57.3
18.4
1.26
22.7
14.6
102.5
59.7
18.9
1.26
23.1
15.0
102.7
62.0
19.3
1.26
23.6
15.4
103.0
50
40.2
14.3
1.24
18.5
12.6
97.6
42.0
14.8
1.23
18.9
13.2
97.8
43.7
15.3
1.23
19.4
13.7
98.0
70
57.2
18.6
1.22
22.7
16.6
99.4
59.6
19.0
1.21
23.1
17.1
99.5
62.0
19.4
1.21
23.5
17.5
99.7
90
Operation not recommended
90
Operation not recommended
50
41.7
12.1
1.60
17.6
7.6
122.1
43.2
12.5
1.61
18.0
7.8
122.4
44.7
12.9
1.61
18.4
8.0
122.6
70
59.0
16.1
1.60
21.5
10.0
124.8
61.0
16.5
1.60
21.9
10.3
125.1
63.1
16.8
1.61
22.3
10.5
125.3
90
Operation not recommended
50
41.6
12.3
1.57
17.6
7.8
119.7
43.1
12.7
1.57
18.0
8.1
119.9
44.6
13.1
1.57
18.4
8.3
120.1
70
58.8
16.3
1.56
21.6
10.5
121.9
60.9
16.6
1.56
22.0
10.7
122.1
63.0
17.0
1.56
22.3
10.9
122.3
90
Operation not recommended
110
5
EER
0.60
110
110
HR
MBTUH
17.8
110
3
Power
kW
19.3
110
5
TC
MBTUH
37.8
110
90
LLT
°F
56.8
110
3
EER
LST
°F
70
110
5
Load Flow-5 GPM
HR
MBTUH
50
110
70
TC
Power
MBTUH
kW
50
41.5
12.4
1.53
17.6
8.1
117.3
43.0
12.8
1.53
18.0
8.4
117.4
44.6
13.2
1.53
18.4
8.6
117.6
70
58.7
16.5
1.51
21.6
10.9
118.9
60.8
16.8
1.51
22.0
11.1
119.1
62.9
17.2
1.51
22.4
11.4
119.2
90
110
Operation not recommended
8/20/09
30
NSW SPECIFICATION CATALOG
NSW018 - Performance Data cont.
Heating Capacity
Source
EST
°F
Flow
GPM
Load Flow-3 GPM
ELT
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-4 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-5 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
COP
LST
°F
60
4
5
3
4
5
3
50
4
5
3
70
Operation not recommended
120
25
30
80
100
4
5
3
60
69.8
14.2
0.90
11.1
4.62
20.4
67.4
14.3
0.88
11.3
4.76
20.3
65.9
14.4
0.86
11.5
4.91
20.3
80
89.4
13.7
1.21
9.6
3.31
21.1
87.1
13.8
1.19
9.7
3.38
21.0
85.7
13.9
1.17
9.9
3.46
20.9
100
109.1
13.2
1.53
8.0
2.53
21.7
106.8
13.3
1.51
8.1
2.58
21.6
105.5
13.3
1.49
8.3
2.63
21.6
120
128.7
12.7
1.84
6.4
2.02
22.4
126.6
12.8
1.82
6.5
2.05
22.3
125.3
12.8
1.80
6.7
2.08
22.3
60
70.4
15.1
0.91
12.0
4.86
21.8
68.3
15.2
0.90
12.1
4.96
21.7
66.3
15.2
0.88
12.2
5.06
21.6
80
90.0
14.5
1.22
10.4
3.48
22.9
88.0
14.6
1.21
10.5
3.55
22.8
86.0
14.6
1.19
10.6
3.61
22.7
100
109.6
14.0
1.54
8.7
2.66
24.0
107.7
14.0
1.52
8.8
2.71
23.9
105.8
14.1
1.49
9.0
2.76
23.8
120
129.2
13.4
1.85
7.1
2.12
25.1
127.4
13.5
1.83
7.2
2.16
25.0
125.6
13.5
1.80
7.4
2.20
24.9
60
70.7
15.5
0.91
12.4
5.02
23.2
68.6
15.6
0.89
12.6
5.14
23.2
66.5
15.7
0.88
12.7
5.26
23.1
80
90.2
14.9
1.22
10.7
3.58
24.2
88.2
15.0
1.20
10.9
3.66
24.1
86.2
15.0
1.18
11.0
3.75
24.0
100
109.8
14.3
1.53
9.0
2.73
25.1
107.9
14.3
1.50
9.2
2.79
25.0
105.9
14.4
1.48
9.3
2.85
24.9
120
129.4
13.7
1.85
7.4
2.17
26.0
127.5
13.7
1.81
7.5
2.21
25.9
125.6
13.7
1.78
7.6
2.26
25.8
60
70.9
15.9
0.90
12.8
5.18
24.7
68.8
16.1
0.89
13.0
5.32
24.6
66.7
16.2
0.87
13.2
5.46
24.5
80
90.5
15.2
1.21
11.1
3.68
25.4
88.4
15.3
1.19
11.3
3.78
25.3
86.4
15.4
1.16
11.5
3.89
25.3
100
110.0
14.6
1.53
9.4
2.80
26.1
108.0
14.6
1.49
9.5
2.87
26.1
106.0
14.7
1.46
9.7
2.95
26.0
120
129.6
13.9
1.84
7.6
2.21
26.9
127.6
13.9
1.80
7.8
2.27
26.8
125.7
13.9
1.75
7.9
2.33
26.7
60
73.5
19.7
0.90
16.6
6.46
38.6
70.9
19.8
2.74
10.4
4.71
42.8
68.2
20.0
4.59
4.3
2.97
47.1
80
93.0
18.9
1.21
14.7
4.58
39.9
90.4
19.0
2.43
10.7
3.48
42.7
87.9
19.1
3.65
6.6
2.37
45.4
100
112.4
18.1
1.52
12.9
3.48
41.2
110.0
18.1
2.12
10.9
2.85
42.5
107.5
18.2
2.71
9.0
2.21
43.8
120
131.9
17.3
1.84
11.0
2.76
42.4
129.5
17.3
1.80
11.1
2.82
42.3
127.2
17.4
1.77
11.3
2.88
42.2
60
73.9
20.2
0.89
17.1
6.62
40.7
71.2
20.4
1.81
14.2
3.31
42.7
68.5
20.6
2.72
11.3
2.22
44.8
80
93.3
19.3
1.21
15.2
4.69
41.7
90.7
19.5
1.80
13.3
3.16
43.0
88.1
19.6
2.40
11.4
2.40
44.4
100
112.7
18.4
1.52
13.2
3.55
42.8
110.2
18.5
1.80
12.4
3.02
43.4
107.7
18.6
2.08
11.5
2.63
44.0
120
132.1
17.6
1.83
11.3
2.81
43.8
129.7
17.6
1.80
11.5
2.87
43.7
127.3
17.7
1.76
11.7
2.94
43.6
60
74.2
20.7
0.89
17.7
6.83
42.7
71.5
21.0
0.87
18.0
7.12
42.6
68.7
21.2
0.85
18.3
7.41
42.4
80
93.6
19.8
1.20
15.6
4.82
43.5
90.9
19.9
1.17
15.9
4.99
43.4
88.3
20.1
1.15
16.2
5.17
43.3
100
112.9
18.8
1.52
13.6
3.64
44.4
110.4
18.9
1.48
13.9
3.75
44.3
107.8
19.0
1.45
14.1
3.87
44.2
120
132.3
17.9
1.83
11.6
2.86
45.2
129.8
17.9
1.79
11.8
2.94
45.1
127.4
18.0
1.75
12.0
3.02
45.1
60
76.6
24.2
0.88
21.2
8.06
55.4
73.4
24.5
4.59
8.8
4.46
64.0
70.2
24.7
8.30
-3.6
0.87
72.5
80
95.9
23.2
1.19
19.1
5.69
56.9
92.8
23.4
3.65
10.9
3.41
62.5
89.7
23.5
6.11
2.7
1.13
68.2
100
115.2
22.1
1.51
17.0
4.30
58.3
112.2
22.3
2.72
13.0
2.99
61.1
109.2
22.4
3.93
9.0
1.67
63.8
120
134.5
21.1
1.82
14.9
3.40
59.8
131.6
21.2
1.78
15.1
3.48
59.6
128.7
21.2
1.74
15.3
3.57
59.5
60
77.1
24.9
0.88
21.8
8.27
58.1
73.8
25.2
2.72
15.9
2.71
62.2
70.5
25.5
4.56
9.9
1.64
66.4
64.8
80
96.3
23.7
1.19
19.6
5.82
59.3
93.1
23.9
2.41
15.7
2.91
62.0
90.0
24.2
3.62
11.8
1.96
100
115.5
22.6
1.51
17.4
4.39
60.5
112.5
22.7
2.09
15.6
3.18
61.8
109.4
22.9
2.68
13.7
2.50
63.1
120
134.7
21.5
1.82
15.2
3.45
61.7
131.8
21.5
1.78
15.4
3.54
61.6
128.9
21.6
1.74
15.7
3.64
61.4
60.3
60
77.5
25.5
0.88
22.5
8.49
60.7
74.2
25.9
0.85
22.9
8.93
60.5
70.8
26.2
0.82
23.4
9.36
80
96.7
24.3
1.19
20.2
5.96
61.7
93.5
24.5
1.16
20.6
6.20
61.5
90.2
24.8
1.13
21.0
6.45
61.4
100
115.8
23.0
1.51
17.9
4.48
62.6
112.7
23.2
1.47
18.2
4.63
62.5
109.6
23.4
1.43
18.5
4.78
62.4
120
135.0
21.8
1.82
15.6
3.51
63.6
132.0
21.9
1.78
15.8
3.61
63.5
129.1
22.0
1.74
16.1
3.70
63.4
60
79.6
28.5
0.88
25.5
9.49
72.5
75.6
28.4
0.85
25.5
9.84
72.5
71.6
28.2
0.81
25.4
10.20
72.5
80
98.6
27.1
1.18
23.0
6.70
74.2
94.9
27.1
1.15
23.1
6.92
74.1
91.1
27.0
1.11
23.2
7.14
74.0
100
Operation not recommended
120
90
4
60
80.1
29.2
0.88
26.2
9.72
75.7
76.0
29.0
0.85
26.1
10.05
75.7
71.9
28.8
0.81
26.0
10.40
75.8
80
99.0
27.7
1.19
23.6
6.84
77.1
95.2
27.6
1.15
23.7
7.05
77.0
91.4
27.6
1.11
23.8
7.28
77.0
100
Operation not recommended
120
5
60
80.5
29.9
0.88
26.9
9.96
78.9
76.3
29.6
0.85
26.7
10.28
79.0
72.1
29.3
0.81
26.5
10.60
79.1
80
99.4
28.2
1.19
24.2
6.97
80.0
95.5
28.2
1.15
24.2
7.19
80.0
91.6
28.1
1.11
24.3
7.42
80.0
100
120
Operation not recommended
8/19/09
31
NSW SPECIFICATION CATALOG
NSW018 DHW - Performance Data cont.
Heating Only Capacity
Source
EST
°F
Flow
GPM
Load Flow-3 GPM
ELT
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-4 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-5 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
COP
LST
°F
60
4
5
3
4
5
3
50
4
5
3
70
Operation not recommended
120
25
30
80
100
4
5
3
60
70.0
14.5
0.97
11.2
4.38
20.4
67.6
14.7
0.95
11.4
4.52
20.3
66.1
14.8
0.93
11.6
4.66
20.2
80
89.7
14.1
1.30
9.7
3.19
21.0
87.4
14.3
1.28
9.9
3.27
20.9
85.9
14.4
1.26
10.1
3.36
20.8
100
109.5
13.8
1.62
8.2
2.48
21.6
107.2
13.9
1.60
8.4
2.54
21.5
105.8
14.0
1.58
8.6
2.59
21.5
120
129.2
13.4
1.95
6.7
2.01
22.2
127.0
13.5
1.93
6.9
2.05
22.1
125.6
13.6
1.91
7.1
2.09
22.1
60
70.4
15.2
0.97
11.9
4.59
21.8
68.4
15.4
0.95
12.1
4.74
21.7
66.4
15.5
0.93
12.3
4.88
21.5
80
90.2
14.9
1.30
10.4
3.35
22.8
88.2
15.0
1.28
10.6
3.43
22.7
86.2
15.1
1.26
10.8
3.52
22.6
100
110.0
14.5
1.63
9.0
2.61
23.8
108.0
14.7
1.61
9.2
2.67
23.7
106.1
14.8
1.59
9.3
2.72
23.6
120
129.8
14.2
1.96
7.5
2.12
24.8
127.8
14.3
1.94
7.7
2.16
24.7
125.9
14.4
1.92
7.8
2.20
24.6
60
70.7
15.6
0.97
12.3
4.71
23.3
68.6
15.8
0.95
12.5
4.86
23.2
66.6
15.9
0.93
12.7
5.01
23.1
80
90.4
15.2
1.30
10.8
3.43
24.1
88.4
15.3
1.28
11.0
3.51
24.0
86.4
15.5
1.26
11.2
3.60
23.9
24.8
100
110.2
14.8
1.63
9.2
2.66
25.0
108.2
14.9
1.61
9.4
2.71
24.9
106.2
15.0
1.59
9.6
2.77
120
129.9
14.4
1.96
7.7
2.15
25.8
127.9
14.5
1.94
7.9
2.19
25.7
126.0
14.6
1.92
8.0
2.23
25.6
60
71.0
16.0
0.97
12.7
4.83
24.8
68.9
16.2
0.95
12.9
4.98
24.7
66.7
16.3
0.93
13.1
5.14
24.6
80
90.7
15.5
1.30
11.1
3.50
25.4
88.6
15.7
1.28
11.3
3.59
25.3
86.5
15.8
1.26
11.5
3.68
25.3
100
110.4
15.1
1.63
9.5
2.71
26.1
108.3
15.2
1.61
9.7
2.76
26.0
106.3
15.2
1.58
9.8
2.82
25.9
120
130.0
14.6
1.96
7.9
2.18
26.7
128.0
14.7
1.94
8.0
2.22
26.7
126.1
14.7
1.91
8.2
2.26
26.6
60
73.4
19.6
0.98
16.2
5.87
38.9
70.8
19.8
0.95
16.5
6.10
38.7
68.2
20.0
0.93
16.8
6.33
38.5
80
93.0
18.9
1.31
14.4
4.23
40.1
90.5
19.1
1.28
14.7
4.37
39.9
87.9
19.3
1.25
15.0
4.51
39.7
100
112.5
18.3
1.64
12.7
3.26
41.3
110.1
18.4
1.61
12.9
3.35
41.1
107.6
18.6
1.58
13.2
3.44
41.0
120
132.1
17.6
1.97
10.9
2.62
42.5
129.7
17.7
1.94
11.1
2.68
42.4
127.4
17.9
1.91
11.3
2.74
42.2
40.5
60
73.8
20.1
0.98
16.7
6.03
40.9
71.1
20.3
0.95
17.0
6.26
40.7
68.5
20.5
0.93
17.3
6.49
80
93.3
19.4
1.31
14.9
4.34
41.9
90.7
19.5
1.28
15.2
4.47
41.7
88.1
19.7
1.25
15.4
4.61
41.6
100
112.8
18.6
1.64
13.0
3.33
42.9
110.3
18.8
1.61
13.3
3.41
42.8
107.8
18.9
1.58
13.5
3.50
42.6
120
132.3
17.9
1.97
11.2
2.66
43.9
129.9
18.0
1.94
11.4
2.72
43.8
127.5
18.1
1.91
11.6
2.78
43.7
60
74.2
20.6
0.98
17.3
6.18
42.9
71.4
20.8
0.95
17.6
6.43
42.7
68.7
21.1
0.93
17.9
6.68
42.6
80
93.6
19.8
1.31
15.3
4.44
43.7
91.0
20.0
1.28
15.6
4.58
43.6
88.3
20.1
1.25
15.9
4.72
43.5
100
113.1
19.0
1.64
13.4
3.39
44.5
110.5
19.1
1.61
13.6
3.48
44.4
107.9
19.2
1.58
13.8
3.57
44.3
120
132.5
18.2
1.97
11.5
2.70
45.3
130.0
18.3
1.94
11.6
2.76
45.2
127.5
18.3
1.91
11.8
2.82
45.1
60
76.4
23.9
0.98
20.6
7.15
55.9
73.2
24.2
0.95
20.9
7.46
55.6
70.1
24.4
0.92
21.3
7.77
55.4
56.9
80
95.8
22.9
1.31
18.5
5.12
57.3
92.7
23.2
1.28
18.8
5.30
57.1
89.6
23.4
1.25
19.1
5.49
100
115.1
22.0
1.65
16.3
3.91
58.8
112.2
22.2
1.61
16.7
4.03
58.6
109.2
22.3
1.57
17.0
4.16
58.3
120
134.4
21.0
1.98
14.2
3.11
60.2
131.6
21.2
1.94
14.5
3.20
60.0
128.8
21.3
1.90
14.8
3.28
59.8
60
76.9
24.6
0.98
21.2
7.34
58.4
73.6
24.8
0.95
21.6
7.66
58.2
70.4
25.1
0.92
22.0
7.99
58.0
80
96.2
23.5
1.31
19.0
5.24
59.6
93.0
23.7
1.28
19.3
5.43
59.4
89.9
23.9
1.25
19.7
5.62
59.3
100
115.4
22.5
1.65
16.8
3.99
60.8
112.4
22.6
1.61
17.1
4.11
60.7
109.4
22.8
1.57
17.4
4.24
60.5
120
134.7
21.4
1.98
14.6
3.17
62.0
131.8
21.5
1.94
14.9
3.25
61.9
128.9
21.6
1.90
15.1
3.33
61.7
60
77.3
25.2
0.98
21.9
7.53
61.0
74.0
25.5
0.95
22.3
7.88
60.8
70.6
25.8
0.92
22.7
8.22
60.7
80
96.5
24.1
1.31
19.6
5.37
61.9
93.3
24.3
1.28
19.9
5.56
61.8
90.1
24.5
1.25
20.2
5.76
61.7
100
115.8
22.9
1.65
17.3
4.08
62.9
112.7
23.1
1.61
17.6
4.20
62.8
109.6
23.2
1.57
17.8
4.32
62.6
120
135.0
21.8
1.98
15.0
3.23
63.8
132.0
21.9
1.94
15.2
3.30
63.7
129.0
21.9
1.90
15.4
3.38
63.6
60
79.2
28.0
0.98
24.7
8.37
73.1
79.3
28.2
0.95
24.9
8.69
72.9
79.5
28.3
0.92
25.2
9.01
72.7
80
98.2
26.5
1.31
22.0
5.93
74.9
98.4
26.7
1.27
22.4
6.16
74.6
98.5
27.0
1.24
22.7
6.39
74.4
100
120
60
90
4
80
100
120
Operation not recommended
60
5
80
100
120
10/28/09
32
NSW SPECIFICATION CATALOG
NSW025 - Performance Data
Cooling Capacity
Source
EST
°F
Flow
GPM
4
30
5.5
7
4
50
5.5
7
4
Load Flow-4 GPM
ELT
°F
LLT
°F
50
70
Load Flow-5.5 GPM
TC
MBTUH
Power
kW
HR
MBTUH
36.6
25.9
0.96
55.5
28.0
0.96
90
74.5
30.2
110
93.4
32.3
50
36.9
25.4
0.93
28.6
27.3
70
56.0
27.1
0.93
30.3
29.2
EER
LLT
°F
29.2
27.0
45.0
39.3
26.7
0.96
30.0
27.8
31.3
29.2
46.1
58.5
28.6
0.96
31.8
29.7
0.96
33.4
31.4
47.2
77.7
30.4
0.96
33.7
31.7
0.96
35.6
33.6
48.3
96.9
32.3
0.96
35.5
33.6
41.6
39.5
26.2
0.93
29.3
42.4
58.9
27.6
0.93
30.7
5.5
4
5.5
5.5
LST
°F
45.5
41.9
46.4
61.4
27.5
0.96
29.1
0.96
30.8
28.6
45.9
32.3
30.3
47.4
81.0
30.6
46.7
0.96
33.9
31.9
48.3
100.5
47.5
32.2
0.96
35.5
33.5
48.3
28.1
41.9
29.7
42.6
42.1
26.9
0.93
30.1
28.9
42.3
61.7
28.1
0.93
31.2
30.2
42.8
0.93
31.9
31.0
43.1
78.3
29.0
0.93
32.2
31.3
43.2
81.4
29.2
0.93
32.4
31.5
43.3
0.93
33.6
32.9
43.8
97.7
30.4
0.93
33.6
32.9
43.8
101.0
30.4
0.93
33.6
32.9
43.8
50
37.2
24.9
0.90
28.0
27.7
38.2
39.7
25.6
0.90
28.7
28.4
38.4
42.3
26.3
0.90
29.4
29.2
38.7
70
56.5
26.1
0.90
29.2
29.1
38.6
59.3
26.6
0.90
29.7
29.7
38.7
62.0
27.1
0.90
30.1
30.2
38.9
90
75.9
27.4
0.89
30.4
30.6
39.0
78.8
27.6
0.89
30.6
30.9
39.0
81.8
27.8
0.89
30.9
31.2
39.1
110
95.3
28.6
0.89
31.6
32.1
39.3
98.4
28.6
0.89
31.6
32.1
39.3
101.6
28.6
0.89
31.6
32.1
39.3
50
37.3
24.6
1.24
28.8
21.2
64.8
39.8
25.4
1.24
29.6
21.8
65.2
42.3
26.2
1.24
30.4
22.5
65.7
70
55.4
28.3
1.25
32.6
24.0
66.8
58.3
29.0
1.25
33.3
24.5
67.2
61.2
29.7
1.25
34.0
25.0
67.5
90
73.4
32.1
1.26
36.4
26.7
68.8
76.8
32.7
1.26
37.0
27.1
69.1
80.2
33.3
1.26
37.6
27.5
69.4
110
91.5
35.9
1.27
40.2
29.4
70.7
95.3
36.4
1.27
40.7
29.7
71.0
99.1
36.9
1.27
41.2
29.9
71.3
50
37.5
24.3
1.20
28.4
20.3
61.5
39.9
25.1
1.20
29.2
21.0
61.9
42.4
25.9
1.20
30.0
21.6
62.2
70
55.7
27.8
1.20
31.9
23.1
63.0
58.5
28.5
1.20
32.6
23.7
63.3
61.4
29.2
1.20
33.3
24.3
63.6
90
73.9
31.3
1.21
35.4
25.9
64.4
77.2
31.8
1.21
35.9
26.4
64.7
80.5
32.4
1.21
36.5
26.8
64.9
110
92.1
34.7
1.21
38.9
28.7
65.9
95.8
35.2
1.21
39.3
29.1
66.1
99.5
35.7
1.21
39.8
29.4
66.3
50
37.6
24.1
1.16
28.0
22.0
58.3
40.0
24.9
1.16
28.8
22.8
58.5
42.4
25.7
1.16
29.6
23.5
58.7
70
56.0
27.2
1.16
31.2
24.5
59.2
58.8
27.9
1.16
31.9
25.1
59.4
61.6
28.6
1.16
32.5
25.8
59.6
60.4
90
74.3
30.4
1.16
34.3
27.1
60.1
77.5
30.9
1.16
34.9
27.5
60.3
80.7
31.5
1.16
35.4
28.0
110
92.7
33.6
1.16
37.5
29.6
61.0
96.3
34.0
1.16
37.9
29.9
61.2
99.9
34.4
1.16
38.3
30.2
61.3
50
38.0
23.2
1.51
28.4
15.4
84.6
40.4
24.0
1.52
29.2
15.8
85.0
42.7
24.8
1.52
30.0
16.3
85.5
70
55.2
28.6
1.53
33.9
18.7
87.5
58.1
29.5
1.54
34.8
19.2
87.9
61.0
30.4
1.54
35.7
19.7
88.4
90
72.4
34.1
1.55
39.4
22.0
90.3
75.9
35.0
1.56
40.3
22.5
90.8
79.4
36.0
1.56
41.3
23.1
91.3
Operation not recommended
50
38.0
23.2
1.47
28.2
15.8
81.4
40.3
24.1
1.47
29.1
16.4
81.8
42.7
25.0
1.47
30.0
17.0
82.1
70
55.3
28.5
1.48
33.5
19.3
83.6
58.2
29.4
1.48
34.4
19.9
84.0
61.1
30.3
1.48
35.3
20.5
84.3
90
72.6
33.7
1.49
38.8
22.7
85.8
76.1
34.7
1.49
39.7
23.3
86.2
79.5
35.6
1.49
40.7
23.9
86.5
Operation not recommended
50
38.0
23.2
1.42
28.0
16.3
78.3
40.3
24.2
1.42
29.0
17.1
78.5
42.6
25.1
1.41
29.9
17.8
78.8
70
55.4
28.3
1.42
33.1
19.9
79.8
58.3
29.2
1.42
34.1
20.6
80.0
61.1
30.1
1.41
35.0
21.3
80.3
90
72.8
33.4
1.42
38.2
23.5
81.3
76.2
34.3
1.42
39.1
24.2
81.5
79.6
35.2
1.42
40.0
24.8
81.8
110
90.2
38.5
1.42
43.3
27.1
82.8
94.2
39.4
1.42
44.2
27.7
83.0
98.2
40.2
1.42
45.0
28.3
83.3
50
39.3
20.9
1.93
27.4
11.6
104.1
41.4
21.5
1.94
28.1
12.0
104.5
43.5
22.2
1.94
28.8
12.3
104.9
70
56.3
26.6
1.96
33.3
14.5
107.2
59.0
27.4
1.97
34.1
14.9
107.6
61.7
28.3
1.97
35.0
15.3
108.0
90
Operation not recommended
50
39.2
20.9
1.88
27.3
11.1
101.1
41.3
21.6
1.88
28.0
11.5
101.4
43.4
22.4
1.88
28.8
11.9
101.7
70
56.3
26.7
1.89
33.1
14.1
103.4
59.0
27.5
1.90
34.0
14.5
103.8
61.7
28.3
1.90
34.8
14.9
104.1
50
39.2
21.0
1.83
27.2
12.3
98.0
41.3
21.7
1.83
28.0
12.8
98.2
43.4
22.5
1.83
28.7
13.3
98.5
70
56.2
26.8
1.83
33.0
15.6
99.7
58.9
27.6
1.83
33.8
16.1
100.0
61.6
28.4
1.83
34.6
16.6
100.2
90
Operation not recommended
90
Operation not recommended
50
40.5
18.5
2.35
26.5
7.9
123.7
42.3
19.1
2.36
27.1
8.1
124.0
44.2
19.6
2.36
27.7
8.3
124.3
70
57.3
24.6
2.39
32.7
10.3
126.9
59.8
25.4
2.40
33.5
10.6
127.3
62.3
26.2
2.40
34.4
10.9
127.7
90
Operation not recommended
50
40.4
18.6
2.30
26.4
8.1
120.7
42.3
19.2
2.30
27.0
8.3
120.9
44.2
19.8
2.30
27.6
8.6
121.2
70
57.2
24.9
2.31
32.8
10.8
123.3
59.7
25.6
2.32
33.5
11.1
123.6
62.2
26.4
2.32
34.3
11.4
123.9
90
Operation not recommended
110
7
EER
28.8
110
110
HR
MBTUH
30.5
110
4
TC
MBTUH
75.2
110
7
LLT
°F
94.3
110
90
Power
kW
EER
LST
°F
90
110
7
HR
MBTUH
110
110
70
TC
Power
MBTUH
kW
Load Flow-7 GPM
LST
°F
50
40.4
18.7
2.24
26.3
8.3
117.8
42.2
19.3
2.24
26.9
8.6
117.9
44.1
19.9
2.24
27.5
8.9
118.1
70
57.0
25.2
2.24
32.8
11.3
119.7
59.6
25.9
2.24
33.5
11.6
119.9
62.2
26.6
2.24
34.2
11.9
120.1
90
110
Operation not recommended
8/20/09
33
NSW SPECIFICATION CATALOG
NSW025 - Performance Data cont.
Heating Capacity
Source
EST
°F
Flow
GPM
Load Flow-4 GPM
ELT
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-5.5 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-7 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
COP
LST
°F
60
5.5
7
4
5.5
7
4
50
5.5
7
4
70
Operation not recommended
120
25
30
80
100
5.5
7
4
60
71.0
21.4
1.28
17.0
4.90
20.0
68.1
21.5
1.26
17.2
5.02
19.9
66.4
21.6
1.23
17.4
5.15
19.9
80
90.6
20.5
1.70
14.7
3.54
20.7
87.7
20.7
1.67
14.9
3.62
20.6
86.1
20.8
1.65
15.1
3.70
20.5
100
110.1
19.7
2.12
12.4
2.72
21.3
107.4
19.8
2.09
12.7
2.77
21.3
105.9
19.9
2.06
12.9
2.83
21.2
120
129.7
18.8
2.54
10.1
2.17
22.0
127.1
19.0
2.51
10.4
2.21
21.9
125.6
19.1
2.48
10.6
2.26
21.9
60
71.4
22.2
1.29
17.8
5.04
20.8
69.1
22.4
1.26
18.1
5.21
20.7
66.7
22.6
1.23
18.4
5.38
20.5
80
91.0
21.4
1.71
15.6
3.67
22.0
88.7
21.6
1.68
15.9
3.78
21.8
86.4
21.8
1.64
16.2
3.88
21.7
100
110.6
20.6
2.12
13.4
2.84
23.1
108.4
20.8
2.09
13.6
2.91
23.0
106.2
20.9
2.06
13.9
2.98
22.8
120
130.2
19.8
2.54
11.1
2.28
24.3
128.1
20.0
2.51
11.4
2.33
24.1
125.9
20.1
2.47
11.7
2.38
24.0
60
71.8
22.9
1.29
18.4
5.19
22.6
69.3
23.0
1.26
18.7
5.35
22.5
66.8
23.2
1.23
19.0
5.53
22.4
80
91.3
21.9
1.71
16.1
3.76
23.5
88.9
22.1
1.68
16.4
3.87
23.4
86.6
22.3
1.64
16.7
3.98
23.3
100
110.8
21.0
2.12
13.7
2.90
24.5
108.6
21.2
2.09
14.1
2.97
24.4
106.3
21.4
2.06
14.4
3.05
24.2
120
130.3
20.1
2.54
11.4
2.31
25.4
128.2
20.3
2.51
11.7
2.37
25.3
126.0
20.5
2.47
12.1
2.43
25.2
60
72.1
23.5
1.29
19.1
5.34
24.4
69.6
23.7
1.26
19.3
5.50
24.3
67.0
23.8
1.23
19.6
5.67
24.2
80
91.6
22.4
1.71
16.6
3.85
25.1
89.1
22.6
1.68
16.9
3.96
25.0
86.7
22.8
1.64
17.2
4.07
24.9
100
111.0
21.4
2.12
14.1
2.95
25.8
108.7
21.6
2.09
14.5
3.03
25.7
106.4
21.9
2.06
14.8
3.12
25.6
120
130.5
20.3
2.54
11.6
2.34
26.6
128.3
20.6
2.51
12.1
2.41
26.5
126.2
20.9
2.47
12.5
2.48
26.3
60
75.2
29.4
1.31
24.9
6.55
37.2
71.9
29.5
1.27
25.1
6.79
37.1
68.7
29.5
1.23
25.3
7.03
37.0
80
94.5
28.2
1.74
22.3
4.74
38.5
91.4
28.3
1.69
22.5
4.89
38.4
88.3
28.3
1.65
22.7
5.04
38.3
39.6
100
113.9
27.0
2.16
19.6
3.65
39.9
111.0
27.1
2.11
19.9
3.75
39.7
108.0
27.2
2.06
20.1
3.85
120
133.3
25.9
2.59
17.0
2.91
41.2
130.5
25.9
2.54
17.3
2.99
41.1
127.7
26.0
2.48
17.5
3.07
41.0
60
75.7
30.4
1.31
25.9
6.79
39.6
72.3
30.4
1.27
26.1
7.02
39.5
69.0
30.5
1.23
26.3
7.25
39.5
40.6
80
95.0
29.1
1.74
23.2
4.90
40.7
91.8
29.1
1.69
23.4
5.04
40.6
88.6
29.2
1.65
23.6
5.19
100
114.3
27.7
2.16
20.4
3.76
41.8
111.3
27.8
2.11
20.6
3.86
41.7
108.2
27.9
2.06
20.9
3.96
41.6
120
133.6
26.4
2.59
17.6
2.99
42.9
130.7
26.5
2.54
17.9
3.06
42.8
127.8
26.6
2.48
18.2
3.15
42.7
42.0
60
76.2
31.5
1.32
27.0
6.98
42.1
72.7
31.4
1.27
27.1
7.23
42.0
69.2
31.4
1.23
27.2
7.48
80
95.4
30.0
1.74
24.0
5.02
42.9
92.1
30.0
1.69
24.2
5.18
42.9
88.8
30.0
1.65
24.4
5.34
42.8
100
114.7
28.5
2.17
21.1
3.83
43.8
111.5
28.5
2.11
21.3
3.95
43.7
108.4
28.6
2.06
21.6
4.06
43.6
120
133.9
27.0
2.59
18.1
3.04
44.7
131.0
27.1
2.54
18.4
3.13
44.6
128.0
27.3
2.48
18.8
3.22
44.5
60
78.9
36.6
1.33
32.1
8.06
53.5
74.8
36.5
1.28
32.1
8.37
53.4
70.7
36.4
1.23
32.2
8.67
53.4
80
98.1
35.0
1.77
29.0
5.81
55.0
94.2
35.0
1.71
29.1
6.00
55.0
90.3
34.9
1.65
29.3
6.20
54.9
100
117.3
33.5
2.20
25.9
4.45
56.6
113.5
33.4
2.14
26.1
4.59
56.5
109.8
33.4
2.07
26.3
4.73
56.4
120
136.4
31.9
2.64
22.9
3.54
58.2
132.9
31.9
2.57
23.1
3.65
58.1
129.4
31.9
2.49
23.4
3.75
57.9
60
79.6
38.0
1.34
33.4
8.34
56.6
75.3
37.9
1.28
33.5
8.65
56.6
71.1
37.7
1.23
33.5
8.98
56.6
80
98.7
36.3
1.77
30.2
6.00
57.9
94.7
36.2
1.71
30.3
6.19
57.9
90.6
36.1
1.65
30.4
6.40
57.8
100
117.8
34.5
2.21
27.0
4.58
59.2
114.0
34.5
2.14
27.2
4.72
59.1
110.1
34.4
2.07
27.3
4.87
59.0
120
136.9
32.8
2.64
23.7
3.63
60.5
133.3
32.8
2.57
24.0
3.74
60.4
129.6
32.8
2.49
24.3
3.85
60.3
60
80.3
39.4
1.34
34.8
8.61
59.7
75.9
39.2
1.29
34.8
8.95
59.7
71.5
39.0
1.23
34.8
9.29
59.7
80
99.3
37.5
1.77
31.4
6.19
60.7
95.1
37.3
1.71
31.5
6.40
60.7
91.0
37.2
1.65
31.6
6.61
60.7
100
118.3
35.5
2.21
28.0
4.72
61.8
114.4
35.5
2.14
28.2
4.86
61.7
110.4
35.4
2.07
28.3
5.01
61.7
120
137.3
33.6
2.64
24.6
3.73
62.8
133.6
33.6
2.57
24.8
3.84
62.7
129.9
33.6
2.49
25.1
3.95
62.6
60
82.7
44.0
1.37
39.3
9.41
69.7
77.7
43.7
1.31
39.2
9.79
69.8
72.8
43.4
1.25
39.1
10.17
69.8
80
101.6
41.9
1.80
35.7
6.80
71.6
96.9
41.7
1.73
35.8
7.07
71.6
92.2
41.5
1.66
35.9
7.33
71.5
100
Operation not recommended
120
90
5.5
60
83.5
45.5
1.38
40.8
9.66
73.6
78.2
44.8
1.32
40.3
9.96
73.8
73.0
44.1
1.26
39.8
10.30
73.9
80
102.3
43.2
1.81
37.0
6.99
75.2
97.4
42.8
1.74
36.8
7.22
75.2
92.5
42.4
1.66
36.7
7.46
75.2
100
Operation not recommended
120
7
60
84.2
47.0
1.39
42.3
9.91
77.6
78.7
45.9
1.33
41.4
10.16
77.8
73.2
44.8
1.26
40.5
10.42
78.1
80
102.9
44.5
1.82
38.3
7.18
78.7
97.8
43.8
1.74
37.9
7.38
78.8
92.7
43.2
1.67
37.5
7.59
79.0
100
120
Operation not recommended
8/19/09
34
NSW SPECIFICATION CATALOG
NSW025 DHW - Performance Data cont.
Heating Only Capacity
Source
EST
°F
Flow
GPM
Load Flow-4 GPM
ELT
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-5.5 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-7 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
COP
LST
°F
60
5.5
7
4
5.5
7
4
50
5.5
7
4
70
Operation not recommended
120
25
30
80
100
5.5
7
4
60
71.1
21.6
1.40
16.8
4.52
20.0
68.1
21.7
1.39
17.0
4.59
20.0
66.4
21.8
1.37
17.1
4.66
20.0
80
90.8
20.9
1.84
14.6
3.33
20.7
87.9
21.1
1.79
14.9
3.44
20.6
86.2
21.2
1.74
15.2
3.56
20.5
100
110.4
20.3
2.29
12.5
2.60
21.3
107.6
20.4
2.20
12.9
2.72
21.2
106.0
20.5
2.11
13.3
2.85
21.1
120
130.1
19.6
2.73
10.3
2.10
22.0
127.4
19.8
2.61
10.9
2.22
21.8
125.9
19.9
2.48
11.4
2.35
21.6
60
71.7
22.7
1.41
17.9
4.72
20.8
69.2
22.8
1.38
18.0
4.83
20.7
66.7
22.8
1.35
18.2
4.95
20.6
80
91.4
22.1
1.86
15.7
3.48
21.9
89.0
22.1
1.77
16.1
3.67
21.7
86.5
22.2
1.68
16.4
3.87
21.5
100
111.0
21.4
2.31
13.5
2.72
23.0
108.7
21.5
2.16
14.1
2.93
22.7
106.3
21.5
2.00
14.7
3.15
22.4
120
130.7
20.8
2.76
11.4
2.21
24.1
128.4
20.9
2.55
12.2
2.42
23.7
126.2
20.9
2.33
12.9
2.63
23.3
60
72.0
23.3
1.42
18.4
4.81
22.6
69.4
23.3
1.38
18.6
4.94
22.5
66.9
23.4
1.35
18.8
5.08
22.5
80
91.6
22.5
1.87
16.2
3.54
23.5
89.1
22.6
1.80
16.5
3.68
23.4
86.7
22.7
1.73
16.8
3.84
23.2
100
111.2
21.8
2.32
13.9
2.76
24.4
108.9
21.9
2.21
14.3
2.90
24.2
106.5
22.0
2.11
14.8
3.05
24.0
120
130.9
21.1
2.77
11.7
2.24
25.3
128.6
21.2
2.63
12.2
2.36
25.1
126.3
21.3
2.50
12.7
2.50
24.8
60
72.3
23.8
1.42
19.0
4.91
24.4
69.7
23.9
1.39
19.2
5.06
24.4
67.1
24.0
1.35
19.4
5.21
24.3
80
91.9
23.0
1.87
16.6
3.60
25.1
89.3
23.1
1.83
16.9
3.70
25.0
86.8
23.2
1.79
17.1
3.80
25.0
100
111.4
22.2
2.32
14.3
2.80
25.8
109.0
22.3
2.27
14.5
2.88
25.7
106.6
22.4
2.22
14.8
2.95
25.6
120
131.0
21.4
2.77
11.9
2.26
26.5
128.7
21.5
2.72
12.2
2.32
26.4
126.4
21.6
2.66
12.5
2.38
26.3
60
75.2
29.5
1.47
24.4
5.85
37.4
71.9
29.5
1.42
24.7
6.06
37.3
68.7
29.6
1.38
24.9
6.27
37.2
80
94.6
28.3
1.92
21.7
4.28
38.8
91.5
28.4
1.84
22.1
4.48
38.6
88.4
28.5
1.77
22.4
4.68
38.4
100
114.0
27.1
2.38
19.0
3.32
40.2
111.0
27.2
2.27
19.5
3.50
40.0
108.1
27.4
2.16
20.0
3.68
39.7
120
133.4
25.9
2.84
16.2
2.66
41.6
130.5
26.1
2.69
16.9
2.83
41.3
127.7
26.3
2.55
17.6
2.99
40.9
60
75.6
30.3
1.47
25.3
6.03
39.8
72.3
30.4
1.43
25.5
6.25
39.8
69.0
30.5
1.38
25.7
6.48
39.7
80
95.0
29.0
1.93
22.4
4.41
41.0
91.8
29.1
1.86
22.8
4.58
40.9
88.6
29.2
1.80
23.1
4.77
40.7
100
114.3
27.7
2.38
19.6
3.41
42.1
111.3
27.9
2.30
20.0
3.55
41.9
108.3
28.0
2.21
20.5
3.71
41.8
120
133.6
26.4
2.84
16.7
2.72
43.3
130.8
26.6
2.74
17.3
2.85
43.0
127.9
26.8
2.63
17.8
2.99
42.8
60
76.1
31.2
1.48
26.1
6.13
42.3
72.7
31.3
1.43
26.4
6.38
42.2
69.2
31.4
1.38
26.6
6.63
42.2
80
95.3
29.8
1.94
23.2
4.48
43.2
92.1
29.9
1.88
23.5
4.64
43.1
88.8
30.0
1.83
23.8
4.80
43.0
100
114.6
28.3
2.39
20.2
3.45
44.1
111.5
28.5
2.33
20.6
3.57
43.9
108.5
28.7
2.27
21.0
3.69
43.8
120
133.9
26.9
2.85
17.2
2.76
44.9
131.0
27.2
2.78
17.7
2.85
44.8
128.1
27.4
2.72
18.1
2.95
44.7
60
78.7
36.2
1.52
31.0
6.98
54.0
74.7
36.3
1.46
31.3
7.29
53.9
70.7
36.3
1.40
31.5
7.60
53.8
80
97.8
34.5
1.98
27.7
5.09
55.7
94.0
34.6
1.92
28.1
5.29
55.5
90.2
34.7
1.85
28.4
5.49
55.4
100
116.9
32.7
2.45
24.4
3.92
57.4
113.3
33.0
2.38
24.8
4.07
57.2
109.8
33.2
2.31
25.3
4.21
57.0
120
136.0
31.0
2.91
21.1
3.12
59.1
132.6
31.3
2.84
21.6
3.24
58.9
129.3
31.6
2.76
22.2
3.35
58.6
56.9
60
79.3
37.4
1.53
32.2
7.16
57.1
75.2
37.5
1.47
32.4
7.48
57.0
71.0
37.5
1.41
32.7
7.82
80
98.3
35.5
1.99
28.7
5.22
58.5
94.4
35.7
1.93
29.1
5.43
58.3
90.5
35.8
1.86
29.5
5.64
58.2
100
117.3
33.6
2.45
25.2
4.01
59.9
113.7
33.9
2.38
25.7
4.16
59.7
110.0
34.1
2.31
26.2
4.32
59.5
120
136.3
31.7
2.92
21.8
3.19
61.3
132.9
32.1
2.84
22.4
3.31
61.0
129.5
32.4
2.77
23.0
3.43
60.8
60
79.9
38.6
1.54
33.3
7.34
60.2
75.6
38.7
1.48
33.6
7.69
60.1
71.4
38.7
1.41
33.9
8.04
60.0
80
98.8
36.5
2.00
29.7
5.35
61.2
94.8
36.7
1.93
30.1
5.57
61.1
90.9
36.9
1.86
30.5
5.80
61.0
100
117.8
34.5
2.46
26.1
4.11
62.3
114.0
34.8
2.39
26.6
4.27
62.2
110.3
35.0
2.32
27.1
4.43
62.0
120
136.7
32.4
2.92
22.4
3.25
63.4
133.2
32.8
2.85
23.1
3.38
63.2
129.8
33.2
2.77
23.7
3.51
63.0
60
82.0
42.7
1.56
37.4
8.02
70.7
82.2
43.0
1.49
37.9
8.48
70.5
82.3
43.3
1.42
38.5
8.93
70.2
80
100.9
40.5
2.02
33.6
5.86
72.7
101.0
40.8
1.95
34.2
6.15
72.4
101.2
41.1
1.87
34.8
6.44
72.1
100
120
60
90
5.5
80
100
120
Operation not recommended
60
7
80
100
120
10/28/09
35
NSW SPECIFICATION CATALOG
NSW040 - Performance Data
Cooling Capacity
Source
EST
°F
Flow
GPM
5
30
7.5
10
5
50
7.5
10
5
Load Flow-5 GPM
Load Flow-7.5 GPM
ELT
°F
LLT
°F
TC
MBTUH
Power
kW
HR
MBTUH
EER
LST
°F
LLT
°F
50
34.0
38.7
1.38
43.4
28.0
47.9
37.8
39.8
1.39
70
54.5
37.5
1.27
41.8
29.4
47.2
58.3
38.0
1.25
90
75.1
36.2
1.17
40.2
31.1
46.6
78.8
36.2
110
95.6
35.0
1.06
38.6
33.0
45.9
99.3
50
34.5
37.7
1.32
42.2
28.6
43.2
38.2
7.5
5
7.5
7.5
HR
MBTUH
EER
LST
°F
44.5
28.7
48.4
41.6
40.9
1.39
45.6
29.4
42.3
30.4
47.4
62.0
38.6
1.23
42.8
31.4
48.8
47.6
1.12
40.0
32.6
46.5
82.5
36.2
1.06
39.9
34.1
46.4
34.5
0.98
37.8
35.3
45.6
103.0
33.9
0.90
37.0
37.7
45.2
38.6
1.33
43.1
29.1
43.5
41.9
39.4
1.33
43.9
29.6
43.8
1.23
40.4
29.6
42.6
58.7
36.7
1.21
40.8
30.3
42.8
62.3
37.1
1.19
41.2
31.2
42.9
1.13
38.6
30.7
42.1
79.3
34.8
1.09
38.5
31.9
42.1
82.8
34.9
1.05
38.5
33.1
42.0
110
96.3
33.2
1.04
36.7
32.1
41.6
99.8
32.9
0.98
36.2
33.7
41.4
103.3
32.6
0.92
35.7
35.6
41.2
50
34.9
36.7
1.26
41.0
29.1
38.5
38.5
37.3
1.27
41.6
29.5
38.6
42.2
37.9
1.27
42.2
29.8
38.7
70
55.6
34.9
1.18
38.9
29.7
38.0
59.1
35.3
1.17
39.3
30.3
38.1
62.6
35.7
1.16
39.6
30.9
38.2
90
76.3
33.2
1.09
36.9
30.3
37.6
79.7
33.3
1.07
37.0
31.2
37.6
83.1
33.5
1.04
37.1
32.1
37.6
110
97.1
31.4
1.01
34.8
31.1
37.2
100.3
31.4
0.97
34.7
32.4
37.1
103.5
31.3
0.93
34.5
33.7
37.1
50
35.3
35.7
1.76
41.7
21.6
67.2
38.6
37.4
1.76
43.4
22.6
67.9
41.9
39.2
1.76
45.2
23.5
68.6
70.1
70
53.4
40.2
1.73
46.1
24.5
69.0
57.3
41.5
1.72
47.4
25.5
69.5
61.2
42.8
1.71
48.6
26.4
90
71.5
44.8
1.71
50.6
27.4
70.9
76.0
45.6
1.69
51.4
28.5
71.2
80.4
46.4
1.66
52.1
29.5
71.5
110
89.6
49.4
1.68
55.1
30.4
72.7
94.7
49.7
1.65
55.3
31.7
72.8
99.7
50.1
1.62
55.6
33.0
72.9
50
39.1
35.3
1.69
41.0
20.9
62.8
38.8
36.9
1.68
42.6
21.9
63.3
42.1
38.5
1.68
44.2
22.9
63.8
70
57.8
39.2
1.65
44.8
23.7
64.0
58.7
40.3
1.64
45.9
24.5
64.4
61.4
41.5
1.63
47.1
25.4
64.7
90
76.5
43.0
1.62
48.6
26.5
65.2
77.8
43.8
1.60
49.2
27.3
65.4
80.8
44.5
1.59
49.9
28.1
65.7
110
95.2
46.9
1.59
52.3
29.5
66.5
95.4
47.2
1.56
52.5
30.2
66.5
100.2
47.5
1.54
52.7
30.9
66.6
50
42.8
34.9
1.61
40.4
23.0
58.3
38.9
36.4
1.61
41.9
23.8
58.6
42.2
37.9
1.61
43.3
24.7
58.9
70
62.1
38.1
1.57
43.5
25.3
59.0
60.1
39.1
1.57
44.5
26.1
59.2
61.7
40.2
1.56
45.5
26.9
59.4
90
81.5
41.3
1.54
46.5
27.6
59.6
79.6
41.9
1.52
47.1
28.4
59.7
81.2
42.6
1.51
47.7
29.1
59.8
110
100.8
44.5
1.50
49.6
30.0
60.2
96.2
44.7
1.48
49.7
30.8
60.3
100.7
44.9
1.46
49.9
31.5
60.3
50
36.6
32.6
2.14
39.9
15.2
86.5
39.4
35.0
2.14
42.3
16.4
87.4
42.3
37.4
2.13
44.7
17.6
88.4
70
52.3
43.0
2.19
50.5
19.6
90.8
56.3
45.0
2.20
52.5
20.5
91.6
60.3
47.0
2.20
54.5
21.4
92.5
90
68.0
53.3
2.25
61.0
23.7
95.2
73.2
55.0
2.26
62.7
24.4
95.8
78.3
56.6
2.26
64.3
25.0
96.5
50
36.5
32.9
2.05
39.8
16.0
82.3
39.4
35.2
2.04
42.2
17.2
83.1
42.2
37.6
2.04
44.5
18.5
83.8
70
56.9
42.1
2.08
49.2
20.2
85.3
58.7
44.0
2.08
51.1
21.2
85.9
60.5
45.9
2.08
52.9
22.1
86.5
90
73.9
51.4
2.11
58.6
24.3
88.4
76.4
52.7
2.12
59.9
24.9
88.8
78.8
54.1
2.12
61.3
25.5
89.3
Operation not recommended
Operation not recommended
50
36.4
33.1
1.96
39.8
16.9
78.2
39.3
35.5
1.95
42.1
18.2
78.7
42.2
37.8
1.94
44.4
19.5
79.2
70
61.5
41.2
1.97
48.0
20.9
79.9
61.1
43.0
1.96
49.7
21.9
80.2
60.8
44.7
1.96
51.4
22.8
80.6
82.0
90
79.8
49.4
1.98
56.1
24.9
81.6
79.6
50.5
1.98
57.2
25.5
81.8
79.4
51.6
1.97
58.3
26.1
110
86.3
57.5
1.99
64.3
28.9
83.3
92.1
58.0
1.99
64.8
29.1
83.4
97.9
58.5
1.99
65.3
29.4
83.5
50
38.0
29.1
2.74
38.4
11.4
105.8
40.6
30.9
2.74
40.3
12.2
106.6
43.2
32.8
2.74
42.2
13.0
107.4
70
53.8
39.2
2.80
48.8
15.0
110.1
57.5
41.1
2.81
50.7
15.7
110.9
61.1
43.0
2.81
52.6
16.4
111.7
90
69.6
49.4
2.86
59.1
18.4
114.4
74.3
51.3
2.87
61.1
19.0
115.2
79.0
53.3
2.88
63.1
19.6
116.0
50
41.0
29.2
2.65
38.3
11.0
101.8
40.6
31.1
2.64
40.1
11.8
102.4
43.2
33.0
2.64
42.0
12.5
103.0
70
57.9
38.9
2.68
48.1
14.5
104.9
59.6
40.8
2.68
49.9
15.2
105.5
61.2
42.7
2.68
51.8
15.9
106.1
90
74.9
48.6
2.71
57.9
17.9
108.0
77.0
50.5
2.71
59.7
18.6
108.6
79.2
52.3
2.71
61.6
19.3
109.2
50
43.9
29.4
2.55
38.1
12.5
97.9
40.5
31.3
2.54
40.0
13.4
98.2
43.1
33.3
2.54
41.9
14.3
98.6
70
62.0
38.7
2.56
47.4
16.2
99.8
61.7
40.5
2.55
49.2
17.0
100.1
61.3
42.3
2.54
51.0
17.8
100.5
90
80.1
47.9
2.56
56.6
19.8
101.7
79.8
49.6
2.56
58.4
20.6
102.0
79.4
51.4
2.55
60.1
21.3
102.4
Operation not recommended
Operation not recommended
Operation not recommended
50
39.5
25.5
3.34
36.9
7.6
125.2
41.8
26.9
3.35
38.3
8.0
125.8
44.2
28.2
3.35
39.6
8.4
126.3
70
55.4
35.5
3.41
47.1
10.4
129.4
58.7
37.3
3.42
48.9
10.9
130.2
61.9
39.1
3.42
50.8
11.4
130.9
90
Operation not recommended
50
39.4
25.6
3.24
36.7
7.9
121.4
41.8
27.0
3.24
38.1
8.3
121.8
44.1
28.5
3.24
39.5
8.8
122.2
70
59.0
35.8
3.28
46.9
10.9
124.5
60.4
37.6
3.28
48.8
11.5
125.1
61.9
39.5
3.28
50.7
12.1
125.7
90
Operation not recommended
110
10
Power
kW
36.2
110
110
EER
34.7
110
5
TC
MBTUH
55.1
110
10
LLT
°F
75.7
110
90
Load Flow-10 GPM
LST
°F
70
110
10
HR
MBTUH
90
110
70
TC
Power
MBTUH
kW
50
39.4
25.7
3.14
36.4
8.2
117.5
41.7
27.2
3.14
37.9
8.7
117.8
44.1
28.7
3.13
39.4
9.2
118.1
70
62.6
36.1
3.14
46.8
11.5
119.6
62.2
38.0
3.14
48.7
12.1
120.0
61.8
39.9
3.13
50.6
12.8
120.4
90
110
Operation not recommended
8/20/09
36
NSW SPECIFICATION CATALOG
NSW040 - Performance Data cont.
Heating Capacity
Source
EST
°F
Flow
GPM
Load Flow-5 GPM
ELT
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-7.5 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-10 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
COP
LST
°F
60
7.5
10
5
7.5
10
5
50
7.5
10
5
70
Operation not recommended
120
25
30
80
100
7.5
10
5
60
72.2
29.7
1.83
23.5
4.76
20.2
68.2
29.7
1.78
23.6
4.89
20.1
66.1
29.6
1.72
23.7
5.04
20.1
80
91.9
28.8
2.42
20.6
3.50
20.8
87.9
28.8
2.36
20.7
3.58
20.7
85.9
28.7
2.29
20.9
3.67
20.7
100
111.5
28.0
3.00
17.7
2.73
21.3
107.7
27.9
2.94
17.9
2.78
21.3
105.7
27.8
2.87
18.0
2.84
21.3
120
131.2
27.1
3.59
14.8
2.21
21.9
127.4
27.0
3.52
15.0
2.25
21.9
125.5
26.9
3.44
15.2
2.29
21.9
60
72.7
30.9
1.84
24.6
4.92
19.8
69.5
30.8
1.79
24.7
5.06
19.8
66.3
30.7
1.73
24.8
5.20
19.8
80
92.4
30.0
2.42
21.8
3.64
21.0
89.3
30.0
2.36
21.9
3.73
21.0
86.2
29.9
2.30
22.0
3.81
20.9
100
112.0
29.2
2.99
19.0
2.85
22.2
109.0
29.1
2.93
19.1
2.91
22.1
106.0
29.0
2.86
19.3
2.97
22.1
120
131.7
28.3
3.57
16.1
2.32
23.4
128.7
28.3
3.50
16.3
2.37
23.3
125.8
28.2
3.43
16.5
2.41
23.2
60
73.3
32.3
1.84
26.0
5.14
22.1
70.0
32.2
1.78
26.1
5.29
22.1
66.6
32.2
1.73
26.3
5.46
22.0
80
92.8
31.0
2.43
22.7
3.74
23.1
89.6
31.0
2.36
23.0
3.85
23.0
86.4
31.1
2.29
23.2
3.97
22.9
100
112.3
29.8
3.02
19.5
2.90
24.0
109.2
29.9
2.94
19.9
2.98
23.9
106.2
30.0
2.86
20.2
3.07
23.9
120
131.8
28.6
3.61
16.3
2.32
25.0
128.9
28.7
3.52
16.7
2.39
24.9
125.9
28.9
3.43
17.1
2.46
24.8
60
73.9
33.6
1.84
27.3
5.35
24.4
70.4
33.6
1.78
27.5
5.54
24.3
66.9
33.6
1.72
27.7
5.72
24.3
80
93.2
32.0
2.44
23.7
3.85
25.1
89.9
32.1
2.37
24.1
3.99
25.0
86.6
32.2
2.29
24.4
4.12
25.0
100
112.6
30.5
3.04
20.1
2.94
25.9
109.5
30.7
2.95
20.6
3.05
25.8
106.4
30.9
2.86
21.1
3.16
25.6
120
131.9
28.9
3.64
16.5
2.33
26.6
129.0
29.2
3.54
17.1
2.42
26.5
126.1
29.5
3.43
17.8
2.52
26.3
35.7
60
76.9
41.1
1.88
34.7
6.37
35.7
72.7
40.8
1.81
34.7
6.61
35.7
68.4
40.6
1.74
34.6
6.84
80
96.3
39.5
2.47
31.1
4.67
37.2
92.2
39.3
2.39
31.1
4.82
37.2
88.1
39.1
2.30
31.2
4.97
37.1
100
115.6
37.9
3.06
27.4
3.61
38.7
111.7
37.7
2.96
27.6
3.72
38.6
107.8
37.6
2.87
27.8
3.84
38.5
120
134.9
36.3
3.65
23.8
2.90
40.2
131.2
36.2
3.54
24.1
2.99
40.1
127.5
36.2
3.44
24.4
3.08
39.9
60
77.7
43.0
1.86
36.6
6.77
38.9
73.2
42.7
1.80
36.5
6.95
38.9
68.7
42.3
1.74
36.4
7.15
38.9
80
96.9
41.1
2.46
32.7
4.89
40.1
92.7
40.9
2.38
32.7
5.03
40.0
88.4
40.7
2.30
32.8
5.18
40.0
100
116.1
39.1
3.06
28.7
3.75
41.3
112.1
39.1
2.97
29.0
3.86
41.2
108.0
39.0
2.87
29.2
3.98
41.1
120
135.4
37.2
3.66
24.7
2.98
42.4
131.5
37.3
3.55
25.2
3.08
42.3
127.7
37.4
3.44
25.6
3.19
42.2
60
78.5
44.9
1.84
38.6
7.14
42.0
73.8
44.5
1.79
38.4
7.29
42.1
69.1
44.1
1.74
38.2
7.43
42.1
80
97.6
42.6
2.45
34.3
5.08
42.9
93.1
42.5
2.38
34.3
5.23
42.9
88.7
42.3
2.30
34.4
5.37
42.9
100
116.7
40.4
3.07
30.0
3.85
43.8
112.5
40.4
2.97
30.3
3.99
43.8
108.3
40.4
2.87
30.6
4.13
43.7
120
135.8
38.2
3.68
25.6
3.03
44.7
131.9
38.4
3.56
26.3
3.16
44.6
128.0
38.6
3.44
26.9
3.29
44.5
60
81.2
51.3
1.92
44.7
7.83
51.5
75.8
50.9
1.83
44.6
8.16
51.6
70.4
50.4
1.74
44.5
8.49
51.7
80
100.2
48.9
2.52
40.3
5.69
53.4
95.1
48.6
2.42
40.4
5.91
53.4
90.0
48.3
2.31
40.4
6.13
53.3
100
119.2
46.6
3.12
35.9
4.37
55.2
114.4
46.4
3.00
36.1
4.54
55.1
109.5
46.2
2.88
36.4
4.70
55.0
120
138.2
44.2
3.72
31.5
3.48
57.0
133.7
44.2
3.59
31.9
3.61
56.8
129.1
44.1
3.45
32.3
3.75
56.7
60
82.1
53.7
1.88
47.3
8.37
55.6
76.5
53.1
1.81
46.9
8.58
55.7
70.8
52.5
1.75
46.5
8.82
55.8
80
101.1
51.1
2.49
42.6
6.00
57.1
95.7
50.7
2.40
42.5
6.18
57.1
90.4
50.3
2.31
42.4
6.38
57.1
100
120.0
48.5
3.11
37.9
4.57
58.5
115.0
48.3
2.99
38.1
4.73
58.4
109.9
48.1
2.88
38.3
4.90
58.4
120
138.9
45.9
3.72
33.2
3.61
59.9
134.2
45.9
3.58
33.6
3.75
59.8
129.5
45.9
3.45
34.1
3.90
59.6
60
83.1
56.1
1.84
49.8
8.93
59.7
77.2
55.4
1.80
49.2
9.04
59.9
71.3
54.6
1.75
48.6
9.14
60.0
60.8
80
102.0
53.2
2.47
44.8
6.32
60.8
96.4
52.8
2.39
44.6
6.47
60.8
90.8
52.3
2.31
44.4
6.62
100
120.8
50.4
3.09
39.8
4.77
61.8
115.5
50.2
2.99
40.0
4.93
61.8
110.3
50.0
2.88
40.2
5.09
61.7
120
139.6
47.5
3.72
34.8
3.74
62.8
134.7
47.6
3.58
35.4
3.90
62.7
129.8
47.7
3.44
36.0
4.06
62.6
60
85.4
61.5
1.99
54.7
9.05
67.4
78.5
59.0
1.88
52.5
9.20
68.3
71.6
56.4
1.77
50.4
9.34
69.2
80
104.5
59.4
2.56
50.7
6.79
69.1
97.8
56.7
2.44
48.3
6.80
70.1
91.1
53.9
2.32
46.0
6.80
71.0
100
Operation not recommended
120
90
7.5
60
86.2
63.7
2.01
56.8
9.30
72.6
79.0
60.4
1.89
53.9
9.37
73.5
71.8
57.1
1.77
51.0
9.44
74.3
80
105.5
61.9
2.58
53.1
7.03
73.8
98.4
58.3
2.45
49.9
6.97
74.7
91.3
54.7
2.33
46.8
6.90
75.6
100
124.8
60.1
3.15
49.3
5.59
75.0
117.8
56.2
3.01
45.9
5.47
76.0
110.8
52.4
2.88
42.6
5.33
76.9
120
10
Operation not recommended
60
87.1
65.8
2.02
58.9
9.54
77.9
79.5
61.8
1.90
55.3
9.55
78.6
71.9
57.7
1.77
51.7
9.55
79.3
80
106.5
64.3
2.59
55.4
7.27
78.6
99.0
59.9
2.46
51.5
7.13
79.4
91.5
55.6
2.33
47.6
7.00
80.2
100
125.9
62.7
3.16
51.9
5.82
79.3
118.4
58.1
3.02
47.8
5.62
80.2
111.0
53.4
2.88
43.6
5.43
81.0
120
Operation not recommended
8/17/09
37
NSW SPECIFICATION CATALOG
NSW050 - Performance Data
Cooling Capacity
Source
EST
°F
Flow
GPM
8
30
11.5
15
8
50
11.5
15
8
Load Flow-8 GPM
ELT
°F
LLT
°F
TC
MBTUH
Power
kW
HR
MBTUH
Load Flow-11.5 GPM
EER
LST
°F
LLT
°F
11.5
8
90
11.5
EER
LST
°F
46.9
1.98
61.9
27.9
46.0
38.8
57.0
2.00
63.8
28.6
46.4
41.9
58.8
2.01
65.7
29.3
2.01
66.6
29.8
47.2
58.0
61.0
2.02
67.8
30.3
47.5
61.5
62.2
2.02
69.1
30.7
47.8
90
73.4
64.3
2.03
71.3
31.6
48.4
77.2
64.9
2.04
71.9
31.9
48.5
81.0
65.5
2.04
72.5
32.2
48.7
110
92.2
68.9
2.06
75.9
33.4
49.6
96.4
68.9
2.06
75.9
33.5
49.6
100.5
68.9
2.05
75.9
33.6
49.6
50
35.9
54.6
1.90
61.1
28.8
42.1
39.0
56.3
1.92
62.8
29.3
42.5
42.0
57.9
1.94
64.5
29.8
42.8
70
55.0
58.1
1.92
64.6
30.3
42.9
58.4
59.1
1.93
65.7
30.7
43.1
61.7
60.2
1.94
66.9
31.0
43.3
90
74.2
61.5
1.93
68.1
31.8
43.6
77.8
62.0
1.94
68.6
32.0
43.8
81.4
62.6
1.94
69.2
32.3
43.9
110
93.3
64.9
1.95
71.6
33.3
44.4
97.2
64.9
1.95
71.5
33.4
44.4
101.1
64.9
1.94
71.5
33.5
44.4
50
36.1
54.1
1.82
60.3
29.7
38.3
39.1
55.6
1.85
61.8
30.1
38.5
42.2
57.0
1.87
63.4
30.5
38.7
70
55.5
56.4
1.83
62.6
30.9
38.6
58.7
57.3
1.84
63.6
31.1
38.7
62.0
58.3
1.86
64.6
31.4
38.9
90
74.9
58.6
1.83
64.9
32.0
38.9
78.3
59.1
1.84
65.4
32.2
39.0
81.8
59.6
1.84
65.9
32.3
39.1
110
94.3
60.9
1.84
67.2
33.1
39.2
98.0
60.9
1.84
67.2
33.2
39.2
101.6
60.9
1.83
67.1
33.3
39.2
66.5
50
36.7
51.5
2.53
60.2
21.7
65.5
39.5
53.5
2.53
62.2
22.4
66.0
42.4
55.5
2.54
64.2
23.1
70
54.6
59.9
2.58
68.7
24.4
67.7
57.9
61.5
2.59
70.4
24.9
68.1
61.3
63.1
2.60
72.0
25.5
68.5
90
72.4
68.3
2.64
77.3
26.9
69.9
76.3
69.5
2.65
78.5
27.3
70.2
80.3
70.7
2.65
79.8
27.7
70.6
110
90.2
76.7
2.70
85.9
29.4
72.1
94.7
77.5
2.71
86.7
29.6
72.4
99.2
78.3
2.71
87.5
29.8
72.6
50
39.8
51.6
2.43
59.9
21.3
61.9
39.6
53.4
2.44
61.7
21.9
62.2
42.4
55.2
2.45
63.6
22.5
62.6
70
58.3
58.9
2.47
67.4
23.9
63.4
58.2
60.3
2.48
68.8
24.4
63.7
61.5
61.7
2.48
70.2
24.9
64.0
90
76.8
66.3
2.51
74.8
26.4
64.9
76.8
67.3
2.51
75.8
26.8
65.1
80.6
68.3
2.52
76.9
27.1
65.4
110
95.3
73.6
2.55
82.3
28.9
66.5
95.4
74.2
2.55
82.9
29.1
66.6
99.7
74.8
2.55
83.5
29.3
66.7
50
42.9
51.7
2.33
59.7
23.5
58.2
39.6
53.3
2.35
61.3
24.0
58.4
42.5
54.9
2.36
63.0
24.5
58.7
70
62.0
58.0
2.35
66.0
25.8
59.1
58.4
59.2
2.36
67.2
26.2
59.2
61.7
60.4
2.37
68.5
26.5
59.4
90
81.2
64.2
2.37
72.3
28.0
59.9
77.2
65.0
2.38
73.1
28.2
60.1
80.9
65.9
2.38
74.0
28.5
60.2
110
100.3
70.5
2.39
78.6
30.2
60.8
96.0
70.9
2.39
79.1
30.3
60.9
100.2
71.4
2.40
79.5
30.5
60.9
50
37.7
47.9
3.07
58.4
15.6
85.0
40.2
50.1
3.07
60.5
16.3
85.6
42.8
52.2
3.07
62.7
17.0
86.2
70
54.5
60.1
3.16
70.9
19.0
88.3
57.9
62.1
3.17
72.9
19.6
88.8
61.2
64.0
3.17
74.9
20.2
89.3
90
71.4
72.3
3.25
83.4
22.2
91.5
75.5
74.1
3.26
85.2
22.7
92.0
79.6
75.9
3.27
87.0
23.2
92.4
50
37.5
48.6
2.96
58.7
16.4
81.6
40.1
50.6
2.96
60.6
17.1
82.0
42.8
52.5
2.96
62.6
17.7
82.4
70
54.6
59.8
3.02
70.1
19.8
83.9
57.9
61.5
3.02
71.8
20.4
84.3
61.3
63.3
3.03
73.6
20.9
84.6
90
71.7
71.0
3.08
81.5
23.1
86.2
75.8
72.5
3.09
83.1
23.5
86.5
79.8
74.0
3.10
84.6
23.9
86.9
Operation not recommended
Operation not recommended
50
37.3
49.3
2.84
59.0
17.4
78.1
40.0
51.1
2.85
60.8
17.9
78.4
42.7
52.8
2.85
62.5
18.5
78.6
70
54.7
59.5
2.87
69.3
20.7
79.5
58.0
61.0
2.88
70.8
21.2
79.7
61.4
62.5
2.89
72.3
21.6
79.9
90
72.0
69.8
2.91
79.7
24.0
81.0
76.1
71.0
2.92
80.9
24.3
81.1
80.1
72.1
2.92
82.1
24.7
81.3
110
89.4
80.0
2.94
90.0
27.2
82.4
94.1
80.9
2.95
91.0
27.4
82.5
98.8
81.8
2.96
91.9
27.6
82.6
50
38.9
43.0
3.93
56.4
11.8
104.5
41.3
44.7
3.94
58.1
12.2
105.0
43.6
46.4
3.95
59.9
12.7
105.4
70
56.0
54.5
4.02
68.2
14.5
107.6
59.0
56.2
4.04
70.0
14.9
108.0
62.0
58.0
4.05
71.8
15.4
108.5
90
73.0
66.0
4.12
80.0
17.1
110.6
76.7
67.8
4.13
81.9
17.5
111.1
80.4
69.5
4.15
83.7
17.9
111.6
101.8
Operation not recommended
50
38.8
43.6
3.81
56.6
11.5
101.2
41.2
45.2
3.81
58.2
11.8
101.5
43.6
46.8
3.82
59.8
12.2
70
55.9
54.7
3.87
67.9
14.1
103.4
59.0
56.3
3.88
69.6
14.5
103.8
62.0
57.9
3.89
71.2
14.9
104.1
90
73.0
65.9
3.93
79.3
16.8
105.7
76.8
67.5
3.95
81.0
17.1
106.1
80.5
69.1
3.96
82.7
17.4
106.4
50
38.6
44.2
3.68
56.8
13.0
97.8
41.1
45.7
3.69
58.2
13.4
98.0
43.5
47.1
3.69
59.7
13.8
98.2
70
55.8
55.0
3.72
67.7
15.9
99.3
58.9
56.5
3.72
69.2
16.3
99.5
62.0
57.9
3.73
70.7
16.7
99.7
90
73.0
65.8
3.75
78.6
18.7
100.8
76.8
67.3
3.76
80.1
19.1
101.0
80.6
68.7
3.77
81.6
19.4
101.2
50
40.2
38.0
4.79
54.3
7.9
124.0
42.3
39.3
4.81
55.7
8.2
124.4
44.4
40.6
4.82
57.1
8.4
124.7
70
57.4
48.8
4.89
65.5
10.0
126.9
60.1
50.4
4.91
67.1
10.3
127.3
62.9
51.9
4.93
68.7
10.5
127.7
50
40.1
38.6
4.66
54.4
8.3
120.8
42.2
39.8
4.67
55.7
8.5
121.0
44.4
41.0
4.68
57.0
8.8
121.3
70
57.2
49.7
4.72
65.8
10.5
123.0
60.0
51.2
4.74
67.3
10.8
123.3
62.8
52.6
4.75
68.9
11.1
123.6
50
39.9
39.1
4.52
54.5
8.7
117.5
42.1
40.3
4.53
55.7
8.9
117.7
44.3
41.4
4.53
56.9
9.1
117.8
70
57.0
50.5
4.56
66.1
11.1
119.1
59.8
51.9
4.57
67.5
11.4
119.3
62.7
53.4
4.58
69.0
11.7
119.5
Operation not recommended
Operation not recommended
90
Operation not recommended
90
Operation not recommended
110
15
HR
MBTUH
55.2
110
110
Power
kW
59.8
110
8
TC
MBTUH
35.8
110
15
EER
LLT
°F
54.6
110
11.5
Load Flow-15 GPM
LST
°F
70
110
15
HR
MBTUH
50
110
70
TC
Power
MBTUH
kW
90
110
Operation not recommended
8/20/09
38
NSW SPECIFICATION CATALOG
NSW050 - Performance Data cont.
Heating Capacity
Source
EST
°F
Flow
GPM
Load Flow-8 GPM
ELT
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-11.5 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-15 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
COP
LST
°F
60
11.5
15
8
11.5
15
8
50
11.5
15
8
70
Operation not recommended
120
25
30
80
100
11.5
15
8
60
71.3
43.9
2.50
35.4
5.15
20.1
67.9
44.0
2.50
35.4
5.16
20.1
66.0
44.0
2.49
35.5
5.18
20.1
80
91.0
42.6
3.41
31.0
3.66
20.7
87.6
42.6
3.37
31.1
3.71
20.7
85.9
42.6
3.33
31.3
3.75
20.7
100
110.6
41.3
4.32
26.6
2.80
21.3
107.4
41.3
4.25
26.8
2.85
21.3
105.7
41.3
4.17
27.0
2.90
21.3
120
130.3
40.0
5.23
22.2
2.24
22.0
127.2
40.0
5.12
22.5
2.29
21.9
125.5
39.9
5.01
22.8
2.33
21.9
20.4
60
71.8
45.7
2.36
37.6
5.67
20.3
69.0
45.8
2.43
37.5
5.53
20.3
66.3
45.8
2.49
37.3
5.39
80
91.4
44.4
3.31
33.1
3.92
21.5
88.8
44.4
3.33
33.0
3.91
21.5
86.1
44.4
3.34
33.0
3.89
21.5
100
111.1
43.0
4.27
28.5
2.96
22.7
108.5
43.0
4.23
28.6
2.98
22.6
105.9
43.0
4.19
28.7
3.01
22.6
120
130.7
41.7
5.22
23.9
2.34
23.8
128.2
41.7
5.13
24.1
2.38
23.8
125.7
41.6
5.04
24.4
2.42
23.7
60
72.2
47.2
2.50
38.6
5.53
22.4
69.3
47.2
2.49
38.7
5.56
22.4
66.5
47.3
2.48
38.8
5.59
22.4
80
91.7
45.5
3.41
33.9
3.92
23.4
89.0
45.6
3.37
34.1
3.96
23.3
86.3
45.6
3.33
34.2
4.01
23.3
100
111.3
43.9
4.31
29.2
2.98
24.3
108.7
43.9
4.25
29.4
3.03
24.2
106.0
43.9
4.18
29.6
3.08
24.2
120
130.9
42.3
5.22
24.5
2.37
25.2
128.4
42.3
5.13
24.8
2.42
25.1
125.8
42.2
5.03
25.0
2.46
25.1
60
72.5
48.6
2.64
39.6
5.39
24.6
69.6
48.7
2.56
40.0
5.59
24.5
66.7
48.8
2.47
40.4
5.79
24.5
80
92.0
46.7
3.50
34.8
3.91
25.2
89.2
46.8
3.41
35.1
4.02
25.2
86.4
46.8
3.32
35.5
4.13
25.1
100
111.5
44.8
4.36
29.9
3.01
25.9
108.9
44.8
4.27
30.2
3.08
25.8
106.2
44.8
4.17
30.6
3.15
25.8
120
131.1
42.9
5.22
25.1
2.41
26.6
128.5
42.9
5.12
25.4
2.45
26.5
125.9
42.8
5.02
25.7
2.50
26.5
60
75.1
58.8
2.56
50.0
6.65
37.1
71.6
58.6
2.54
50.0
6.72
37.1
68.0
58.5
2.52
49.9
6.80
37.1
80
94.5
56.3
3.47
44.4
4.71
38.5
91.1
56.2
3.42
44.6
4.80
38.5
87.7
56.2
3.36
44.7
4.88
38.5
100
113.9
53.9
4.39
38.9
3.58
40.0
110.6
53.8
4.30
39.2
3.66
39.9
107.4
53.8
4.21
39.4
3.74
39.8
120
133.2
51.4
5.30
33.3
2.83
41.4
130.2
51.4
5.18
33.7
2.91
41.3
127.1
51.5
5.06
34.2
2.98
41.2
60
75.7
61.0
2.64
52.0
6.78
39.8
72.0
60.8
2.58
52.0
6.91
39.9
68.3
60.5
2.51
51.9
7.06
39.9
80
95.0
58.1
3.53
46.1
4.83
41.0
91.5
57.9
3.44
46.2
4.93
41.0
87.9
57.8
3.36
46.3
5.04
41.0
100
114.2
55.2
4.41
40.2
3.67
42.1
110.9
55.1
4.31
40.4
3.75
42.1
107.6
55.0
4.21
40.6
3.83
42.0
120
133.5
52.4
5.30
34.3
2.89
43.3
130.3
52.3
5.18
34.6
2.96
43.2
127.2
52.3
5.06
35.0
3.03
43.1
60
76.3
63.3
2.72
54.0
6.79
42.6
72.4
62.9
2.61
54.0
7.03
42.6
68.6
62.5
2.51
53.9
7.27
42.6
80
95.4
59.9
3.58
47.7
4.89
43.4
91.8
59.6
3.47
47.8
5.03
43.4
88.2
59.4
3.36
47.9
5.17
43.4
100
114.6
56.6
4.44
41.5
3.72
44.3
111.2
56.4
4.32
41.7
3.82
44.3
107.7
56.2
4.20
41.9
3.91
44.2
120
133.7
53.3
5.30
35.2
2.94
45.2
130.5
53.2
5.18
35.5
3.01
45.1
127.3
53.1
5.05
35.8
3.07
45.1
60
78.5
71.8
2.76
62.4
7.62
53.9
74.1
71.5
2.65
62.5
7.92
53.9
69.8
71.2
2.54
62.5
8.21
53.9
55.5
80
97.6
68.2
3.63
55.8
5.50
55.6
93.5
68.1
3.51
56.1
5.69
55.5
89.3
67.9
3.39
56.3
5.87
100
116.7
64.7
4.51
49.3
4.20
57.3
112.8
64.6
4.37
49.7
4.34
57.2
108.9
64.6
4.23
50.2
4.47
57.1
120
135.7
61.1
5.38
42.7
3.33
59.0
132.1
61.2
5.23
43.4
3.43
58.8
128.4
61.3
5.08
44.0
3.54
58.7
60
79.3
74.9
2.78
65.4
7.90
57.3
74.7
74.3
2.66
65.2
8.18
57.3
70.1
73.7
2.55
65.0
8.48
57.3
80
98.2
70.7
3.64
58.3
5.69
58.6
93.9
70.3
3.52
58.3
5.86
58.6
89.6
69.9
3.39
58.3
6.04
58.6
100
117.2
66.6
4.51
51.2
4.32
60.0
113.1
66.3
4.37
51.4
4.44
59.9
109.1
66.1
4.24
51.6
4.57
59.9
120
136.1
62.4
5.38
44.0
3.40
61.4
132.3
62.4
5.23
44.5
3.49
61.3
128.6
62.3
5.08
45.0
3.59
61.2
60
80.1
77.9
2.79
68.4
8.18
60.6
75.3
77.1
2.67
67.9
8.47
60.7
70.5
76.2
2.55
67.5
8.76
60.7
80
98.9
73.2
3.65
60.7
5.87
61.7
94.4
72.5
3.52
60.5
6.04
61.7
89.9
71.9
3.39
60.3
6.21
61.7
100
117.6
68.4
4.52
53.0
4.44
62.7
113.5
68.0
4.38
53.1
4.56
62.7
109.3
67.6
4.24
53.1
4.68
62.7
120
136.4
63.7
5.38
45.3
3.47
63.8
132.6
63.5
5.23
45.7
3.56
63.7
128.7
63.3
5.08
46.0
3.65
63.7
60
81.9
84.9
2.85
75.2
8.73
70.6
76.5
82.8
3.51
70.8
7.21
71.7
71.1
80.7
4.16
66.5
5.68
72.9
80
100.6
80.1
3.71
67.4
6.32
72.6
95.6
78.7
4.09
64.8
5.70
73.3
90.6
77.4
4.47
62.2
5.08
74.0
100
119.4
75.2
4.58
59.6
4.82
74.6
114.8
74.7
4.68
58.7
4.68
74.9
110.2
74.1
4.77
57.8
4.55
75.1
76.4
120
90
11.5
Operation not recommended
60
82.3
86.6
2.86
76.9
8.89
74.9
76.8
84.1
3.12
73.5
7.91
75.6
71.2
81.6
3.38
70.1
7.08
80
101.1
81.8
3.72
69.0
6.43
76.5
95.9
80.2
3.84
67.1
6.12
76.9
90.8
78.6
3.95
65.1
5.83
77.3
100
119.8
76.9
4.59
61.2
4.91
78.0
115.1
76.2
4.56
60.7
4.90
78.1
110.4
75.5
4.52
60.1
4.90
78.3
60
82.8
88.3
2.86
78.5
9.05
79.2
77.0
85.4
2.73
76.1
9.19
79.5
71.3
82.5
2.59
73.7
9.33
79.9
80
101.5
83.4
3.73
70.7
6.55
80.3
96.2
81.6
3.58
69.3
6.68
80.5
91.0
79.7
3.43
68.0
6.81
80.7
100
120.2
78.6
4.61
62.8
5.00
81.4
115.4
77.7
4.44
62.6
5.14
81.4
110.6
76.9
4.26
62.3
5.28
81.4
120
15
120
Operation not recommended
Operation not recommended
8/19/09
39
NSW SPECIFICATION CATALOG
NSW060 - Performance Data
Cooling Capacity
Source
EST
°F
Flow
GPM
9
30
13.5
18
9
50
13.5
18
9
Load Flow-9 GPM
ELT
°F
LLT
°F
50
36.0
70
54.4
TC
MBTUH
Load Flow-13.5 GPM
Power
kW
HR
MBTUH
EER
LST
°F
LLT
°F
61.1
2.23
68.7
27.4
45.7
39.1
64.5
68.1
2.26
75.9
30.1
47.4
58.0
70.6
13.5
9
13.5
13.5
2.25
72.1
2.28
78.4
HR
MBTUH
EER
28.7
46.5
42.2
67.8
31.0
48.0
61.6
73.1
LST
°F
2.26
75.5
30.0
47.3
2.29
80.9
32.0
48.5
49.8
2.30
83.0
32.7
49.0
76.9
76.8
2.31
84.7
33.3
49.4
81.0
78.5
2.31
86.4
33.9
2.33
90.2
35.3
50.7
95.8
83.0
2.34
91.0
35.5
50.8
100.4
83.8
2.34
91.8
35.8
51.0
50
36.1
60.5
2.14
67.8
28.3
41.7
39.2
64.0
2.15
71.3
29.7
42.3
42.3
67.5
2.17
74.8
31.2
42.9
70
54.8
66.1
2.16
73.5
30.6
42.8
58.4
68.6
2.17
76.0
31.7
43.2
61.9
71.1
2.18
78.5
32.7
43.6
90
73.6
71.8
2.18
79.2
33.0
43.8
77.5
73.3
2.18
80.7
33.6
44.1
81.4
74.8
2.19
82.2
34.2
44.4
110
92.3
77.4
2.20
84.9
35.3
44.9
96.6
77.9
2.20
85.4
35.4
45.0
101.0
78.4
2.20
85.9
35.6
45.1
50
36.3
59.9
2.05
66.9
29.2
37.7
39.3
63.5
2.06
70.5
30.8
38.1
42.3
67.1
2.07
74.2
32.4
38.5
70
55.3
64.1
2.05
71.1
31.2
38.1
58.7
66.6
2.06
73.6
32.3
38.4
62.1
69.1
2.07
76.1
33.4
38.7
90
74.3
68.4
2.06
75.4
33.2
38.6
78.1
69.7
2.06
76.7
33.8
38.8
81.9
71.0
2.06
78.1
34.4
38.9
110
93.4
72.6
2.06
79.6
35.2
39.1
97.5
72.8
2.06
79.8
35.3
39.1
101.6
73.0
2.06
80.0
35.4
39.2
50
36.8
57.4
2.86
67.2
21.4
65.4
39.8
60.2
2.87
70.0
22.4
66.0
42.8
63.0
2.88
72.8
23.3
66.7
69.0
70
54.3
68.3
2.93
78.3
24.6
67.9
58.0
70.6
2.94
80.7
25.3
68.5
61.6
72.9
2.95
83.0
26.0
90
71.8
79.3
3.00
89.5
27.6
70.5
76.2
81.1
3.01
91.3
28.1
70.9
80.5
82.8
3.02
93.2
28.6
71.3
110
89.3
90.2
3.07
100.7
30.5
73.1
94.4
91.5
3.08
102.0
30.8
73.4
99.4
92.8
3.10
103.3
31.1
73.7
50
36.9
57.3
2.75
66.6
20.9
61.5
39.8
60.2
2.75
69.6
21.9
62.0
42.8
63.1
2.76
72.5
22.9
62.5
70
54.7
66.9
2.79
76.4
24.0
63.2
58.2
69.2
2.80
78.8
24.7
63.6
61.8
71.5
2.81
81.1
25.5
64.0
65.6
90
72.5
76.6
2.83
86.2
27.0
65.0
76.7
78.2
2.84
87.9
27.5
65.3
80.8
79.9
2.85
89.7
28.0
110
90.3
86.2
2.88
96.0
30.0
66.8
95.1
87.3
2.89
97.1
30.2
67.0
99.9
88.3
2.90
98.2
30.5
67.2
50
36.9
57.2
2.63
66.1
23.1
57.6
39.8
60.2
2.64
69.2
24.3
57.9
42.8
63.2
2.64
72.2
25.4
58.3
70
55.0
65.5
2.65
74.5
25.9
58.5
58.5
67.8
2.66
76.9
26.8
58.8
62.0
70.1
2.66
79.2
27.6
59.1
90
73.1
73.9
2.67
83.0
28.7
59.5
77.1
75.4
2.68
84.6
29.2
59.7
81.2
77.0
2.68
86.2
29.8
59.9
110
91.2
82.2
2.69
91.4
31.5
60.5
95.8
83.1
2.70
92.2
31.7
60.6
100.4
83.9
2.71
93.1
31.9
60.7
50
37.7
53.7
3.49
65.6
15.4
85.0
40.5
56.0
3.50
67.9
16.0
85.6
43.3
58.2
3.50
70.1
16.6
86.1
70
54.3
68.5
3.60
80.8
19.1
88.5
58.0
70.6
3.61
82.9
19.6
89.0
61.7
72.7
3.62
85.0
20.1
89.5
90
70.9
83.4
3.70
96.0
22.5
92.0
75.5
85.3
3.72
98.0
22.9
92.4
80.0
87.2
3.73
99.9
23.4
92.9
Operation not recommended
50
37.6
54.1
3.35
65.5
16.1
81.3
40.4
56.4
3.35
67.8
16.8
81.7
43.3
58.8
3.36
70.2
17.5
82.1
70
54.5
67.7
3.42
79.4
19.8
83.7
58.1
69.8
3.43
81.5
20.4
84.1
61.8
71.9
3.44
83.6
20.9
84.5
90
71.4
81.4
3.49
93.3
23.3
86.2
75.8
83.2
3.50
95.2
23.7
86.5
80.3
85.1
3.52
97.1
24.2
86.8
78.0
Operation not recommended
50
37.5
54.4
3.21
65.4
16.9
77.5
40.4
56.9
3.21
67.8
17.7
77.8
43.2
59.3
3.21
70.3
18.5
70
54.7
66.9
3.24
77.9
20.6
78.9
58.3
69.0
3.25
80.1
21.2
79.2
61.9
71.1
3.26
82.2
21.8
79.4
90
71.8
79.3
3.28
90.5
24.2
80.4
76.2
81.2
3.29
92.4
24.7
80.6
80.5
83.0
3.30
94.2
25.1
80.8
110
89.0
91.8
3.31
103.1
27.7
81.8
94.1
93.3
3.33
104.7
28.0
82.0
99.1
94.8
3.35
106.2
28.3
82.2
50
39.1
47.6
4.48
62.8
11.5
104.4
41.6
49.5
4.48
64.7
11.9
104.8
44.1
51.4
4.49
66.7
12.4
105.3
70
55.8
61.8
4.58
77.4
14.5
107.7
59.2
63.7
4.59
79.4
14.9
108.2
62.5
65.6
4.61
81.4
15.3
108.6
90
72.6
76.1
4.68
92.0
17.3
111.1
76.7
78.0
4.70
94.0
17.7
111.5
80.8
79.9
4.73
96.1
18.0
112.0
Operation not recommended
50
39.0
48.0
4.32
62.7
11.1
100.8
41.5
49.9
4.32
64.6
11.5
101.1
44.1
51.9
4.33
66.6
12.0
101.4
70
55.9
61.6
4.38
76.5
14.1
103.2
59.2
63.6
4.40
78.6
14.5
103.5
62.5
65.5
4.41
80.6
14.9
103.9
90
72.8
75.2
4.45
90.4
16.9
105.6
76.8
77.2
4.47
92.5
17.3
106.0
80.9
79.2
4.49
94.6
17.6
106.3
97.6
Operation not recommended
50
38.9
48.4
4.16
62.5
12.6
97.2
41.5
50.4
4.16
64.5
13.1
97.4
44.0
52.4
4.16
66.5
13.7
70
55.9
61.4
4.19
75.7
15.7
98.7
59.2
63.4
4.20
77.7
16.2
98.9
62.5
65.5
4.21
79.8
16.7
99.1
90
73.0
74.4
4.22
88.8
18.8
100.2
77.0
76.5
4.24
90.9
19.3
100.4
81.0
78.6
4.25
93.1
19.7
100.7
50
40.5
41.4
5.46
60.0
7.6
123.8
42.7
43.0
5.47
61.6
7.9
124.1
44.9
44.5
5.48
63.2
8.1
124.5
70
57.4
55.1
5.55
74.0
9.9
127.0
60.3
56.8
5.58
75.9
10.2
127.4
63.3
58.6
5.61
77.7
10.4
127.8
Operation not recommended
90
Operation not recommended
50
40.4
41.9
5.29
59.9
7.9
120.3
42.6
43.4
5.29
61.5
8.2
120.6
44.9
45.0
5.30
63.0
8.5
120.8
70
57.3
55.5
5.35
73.7
10.4
122.7
60.3
57.3
5.36
75.6
10.7
123.0
63.2
59.2
5.38
77.5
11.0
123.3
90
Operation not recommended
110
18
Power
kW
75.2
110
110
EER
82.2
110
9
TC
MBTUH
91.2
110
18
LLT
°F
72.8
110
90
LST
°F
90
110
18
Load Flow-18 GPM
HR
MBTUH
110
110
70
TC
Power
MBTUH
kW
50
40.3
42.3
5.11
59.7
8.3
116.8
42.6
43.9
5.11
61.3
8.6
117.0
44.8
45.4
5.11
62.8
8.9
117.2
70
57.2
55.9
5.14
73.4
10.9
118.4
60.2
57.8
5.15
75.4
11.2
118.6
63.2
59.8
5.16
77.4
11.6
118.9
90
110
Operation not recommended
8/20/09
40
NSW SPECIFICATION CATALOG
NSW060 - Performance Data cont.
Heating Capacity
Source
EST
°F
Flow
GPM
Load Flow-9 GPM
ELT
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-13.5 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-18 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
COP
LST
°F
60
13.5
18
9
13.5
18
9
50
13.5
18
9
70
Operation not recommended
120
25
30
80
100
13.5
18
9
60
71.1
48.3
2.93
38.3
4.83
20.6
67.4
48.6
2.86
38.8
4.98
20.6
65.6
48.9
2.79
39.4
5.14
20.5
80
90.8
47.3
3.93
33.9
3.53
21.1
87.3
47.6
3.85
34.4
3.62
21.1
85.5
47.8
3.76
35.0
3.72
21.0
100
110.6
46.3
4.93
29.5
2.75
21.6
107.1
46.5
4.83
30.0
2.82
21.6
105.4
46.8
4.74
30.6
2.89
21.5
120
130.4
45.3
5.93
25.1
2.24
22.1
126.9
45.5
5.82
25.6
2.29
22.1
125.2
45.7
5.71
26.2
2.35
22.0
20.5
60
71.5
50.1
2.94
40.1
4.99
20.8
68.7
50.5
2.87
40.7
5.17
20.7
65.8
50.9
2.79
41.4
5.35
80
91.3
49.3
3.95
35.9
3.66
21.8
88.5
49.7
3.86
36.5
3.77
21.6
85.7
50.0
3.77
37.1
3.89
21.5
100
111.1
48.6
4.95
31.7
2.87
22.7
108.4
48.8
4.85
32.3
2.95
22.6
105.6
49.0
4.74
32.8
3.03
22.5
120
131.0
47.8
5.96
27.5
2.35
23.7
128.2
48.0
5.84
28.0
2.41
23.6
125.5
48.1
5.72
28.6
2.46
23.5
60
71.9
52.1
3.0
42.0
5.17
22.9
68.9
51.8
2.87
42.0
5.29
22.9
65.9
51.6
2.8
42.0
5.41
22.8
80
91.7
50.9
4.0
37.4
3.77
23.7
88.7
50.8
3.86
37.6
3.86
23.6
85.8
50.7
3.8
37.8
3.95
23.5
100
111.4
49.7
5.0
32.8
2.94
24.4
108.6
49.8
4.84
33.2
3.01
24.3
105.7
49.8
4.7
33.7
3.08
24.3
120
131.1
48.6
6.0
28.2
2.39
25.2
128.4
48.8
5.83
28.9
2.45
25.1
125.6
49.0
5.7
29.5
2.51
25.0
60
72.4
54.1
2.97
44.0
5.34
25.0
69.2
53.2
2.88
43.3
5.41
25.0
66.0
52.2
2.79
42.7
5.48
25.1
80
92.0
52.5
3.96
39.0
3.88
25.5
89.0
52.0
3.86
38.8
3.95
25.6
85.9
51.4
3.76
38.6
4.01
25.6
100
111.7
50.9
4.96
34.0
3.01
26.1
108.7
50.8
4.84
34.2
3.07
26.1
105.8
50.6
4.72
34.5
3.14
26.1
120
131.3
49.3
5.95
29.0
2.43
26.7
128.5
49.6
5.82
29.7
2.50
26.6
125.7
49.8
5.69
30.4
2.56
26.5
60
75.1
66.0
3.0
55.7
6.34
37.2
71.4
66.2
2.92
56.2
6.62
37.1
67.6
66.3
2.8
56.7
6.90
37.0
80
94.6
63.9
4.0
50.2
4.66
38.5
91.0
64.1
3.89
50.8
4.83
38.4
87.4
64.3
3.8
51.4
4.99
38.2
100
114.1
61.7
5.0
44.7
3.63
39.8
110.6
62.0
4.86
45.4
3.74
39.6
107.1
62.3
4.7
46.1
3.86
39.4
120
133.7
59.6
6.0
39.3
2.93
41.0
130.3
60.0
5.83
40.1
3.02
40.8
126.9
60.3
5.7
40.9
3.11
40.6
60
75.8
68.8
3.1
58.4
6.61
40.1
71.8
68.5
2.93
58.5
6.84
40.1
67.8
68.2
2.8
58.5
7.09
40.0
80
95.2
66.2
4.0
52.5
4.81
41.1
91.4
66.1
3.90
52.8
4.96
41.0
87.6
66.1
3.8
53.2
5.13
41.0
100
114.6
63.7
5.0
46.6
3.72
42.1
111.0
63.8
4.87
47.2
3.84
42.0
107.3
64.0
4.7
47.8
3.96
41.9
120
134.0
61.1
6.0
40.6
2.98
43.1
130.5
61.5
5.85
41.5
3.08
42.9
127.1
61.9
5.7
42.4
3.18
42.8
60
76.4
71.6
3.1
61.1
6.79
43.0
72.2
70.8
2.95
60.7
7.01
43.0
68.0
70.0
2.8
60.4
7.24
43.1
80
95.7
68.6
4.1
54.7
4.93
43.7
91.7
68.2
3.92
54.8
5.09
43.7
87.8
67.8
3.8
54.9
5.25
43.7
100
115.0
65.6
5.1
48.4
3.79
44.5
111.3
65.6
4.89
48.9
3.92
44.4
107.5
65.6
4.7
49.4
4.06
44.3
120
134.3
62.6
6.0
42.0
3.03
45.2
130.8
63.0
5.87
43.0
3.15
45.1
127.3
63.4
5.7
44.0
3.26
45.0
60
78.8
81.9
3.12
71.3
7.69
53.7
74.1
81.8
2.98
71.6
8.07
53.6
69.4
81.7
2.83
72.0
8.46
53.5
80
98.0
78.4
4.06
64.5
5.65
55.2
93.5
78.5
3.92
65.1
5.88
55.1
89.0
78.6
3.78
65.7
6.10
54.9
100
117.2
74.9
5.01
57.8
4.38
56.8
112.9
75.2
4.87
58.6
4.54
56.6
108.7
75.6
4.72
59.4
4.69
56.4
120
136.4
71.4
5.95
51.1
3.52
58.3
132.3
72.0
5.81
52.1
3.63
58.1
128.3
72.5
5.67
53.1
3.75
57.8
60
79.6
85.5
3.1
74.8
7.97
57.4
74.6
85.1
3.00
74.9
8.33
57.3
69.7
84.8
2.8
75.0
8.73
57.3
80
98.7
81.6
4.1
67.5
5.81
58.6
94.0
81.5
3.95
68.0
6.04
58.5
89.3
81.4
3.8
68.5
6.29
58.4
100
117.8
77.6
5.1
60.3
4.48
59.8
113.4
77.8
4.91
61.1
4.65
59.6
108.9
78.1
4.7
61.9
4.83
59.5
120
136.9
73.7
6.0
53.0
3.57
61.0
132.7
74.2
5.86
54.2
3.71
60.8
128.6
74.8
5.7
55.4
3.86
60.6
60
80.4
89.1
3.17
78.3
8.24
61.0
75.2
88.5
3.02
78.2
8.62
61.0
70.1
87.8
2.86
78.0
8.99
61.1
80
99.4
84.7
4.16
70.5
5.97
61.9
94.5
84.5
3.98
70.9
6.23
61.9
89.6
84.2
3.80
71.2
6.49
61.8
100
118.4
80.3
5.14
62.7
4.57
62.8
113.8
80.5
4.95
63.6
4.77
62.7
109.2
80.6
4.75
64.4
4.98
62.6
120
137.4
75.9
6.13
55.0
3.63
63.7
133.1
76.5
5.91
56.3
3.80
63.6
128.8
77.0
5.69
57.6
3.96
63.4
60
82.4
97.7
3.26
86.6
8.78
70.2
76.5
95.2
3.09
84.7
9.04
70.6
70.6
92.7
2.92
82.7
9.30
71.0
80
101.4
93.2
4.25
78.7
6.42
72.0
95.9
91.9
4.06
78.0
6.65
72.1
90.4
90.5
3.86
77.4
6.87
72.3
100
Operation not recommended
120
90
13.5
60
82.8
99.7
3.3
88.4
8.89
74.9
76.8
96.7
3.11
86.1
9.12
75.3
70.7
93.7
2.9
83.7
9.37
75.7
80
101.8
95.3
4.3
80.6
6.52
76.3
96.2
93.5
4.08
79.6
6.72
76.4
90.5
91.8
3.9
78.6
6.94
76.6
100
120.8
90.9
5.3
72.8
5.04
77.6
115.6
90.4
5.05
73.1
5.24
77.5
110.3
89.9
4.8
73.4
5.46
77.5
120
18
Operation not recommended
60
83.3
101.6
3.31
90.3
8.99
79.7
77.1
98.2
3.13
87.5
9.22
80.0
70.8
94.7
2.94
84.7
9.44
80.3
80
102.3
97.3
4.31
82.6
6.61
80.5
96.5
95.2
4.10
81.2
6.81
80.7
90.7
93.1
3.89
79.8
7.00
80.9
100
121.3
93.0
5.31
74.9
5.13
81.4
115.9
92.2
5.08
74.9
5.33
81.4
110.5
91.4
4.85
74.9
5.53
81.4
120
Operation not recommended
8/19/09
41
NSW SPECIFICATION CATALOG
NSW075 - Performance Data
Cooling Capacity
Source
EST
°F
Flow
GPM
10
30
14.5
19
10
50
14.5
19
10
Load Flow-10 GPM
ELT
°F
LLT
°F
TC
MBTUH
Power
kW
50
34.7
74.0
70
52.4
85.1
90
70.2
96.3
3.45
110
87.9
107.4
3.60
119.7
50
34.7
74.1
3.01
84.4
Load Flow-14.5 GPM
HR
MBTUH
LST
°F
LLT
°F
EER
3.14
84.7
23.6
47.5
37.9
77.8
3.29
96.4
25.9
49.9
56.3
88.0
108.0
27.9
52.3
74.7
98.1
29.8
54.7
93.0
24.6
43.3
37.9
14.5
10
14.5
3.19
88.7
24.4
48.3
3.34
99.3
26.3
50.5
3.49
110.0
28.1
52.7
108.3
3.64
120.7
29.8
77.8
3.05
88.2
25.5
14.5
EER
LST
°F
41.1
81.6
3.24
60.2
90.8
3.38
92.7
25.2
49.1
102.3
26.8
79.2
99.9
3.53
112.0
51.1
28.3
53.1
54.9
98.2
109.1
3.67
121.6
29.7
55.1
43.9
41.2
81.4
3.09
91.9
26.3
44.5
45.8
3.12
93.8
26.6
44.9
56.6
85.8
3.16
96.6
27.2
45.3
60.4
88.5
3.20
99.4
27.7
3.24
103.2
28.5
46.5
75.3
93.8
3.27
105.0
28.7
46.8
79.6
95.5
3.30
106.8
28.9
47.1
110
89.1
101.2
3.35
112.6
30.2
48.1
94.0
101.9
3.38
113.4
30.2
48.2
98.9
102.6
3.41
114.2
30.1
48.3
50
34.7
74.2
2.88
84.0
25.8
39.1
37.9
77.7
2.91
87.6
26.7
39.5
41.2
81.2
2.94
91.2
27.6
39.9
70
53.3
81.1
2.95
91.2
27.5
39.9
57.0
83.6
2.98
93.8
28.1
40.2
60.7
86.1
3.01
96.4
28.6
40.5
41.0
90
71.8
88.1
3.03
98.4
29.1
40.7
76.0
89.6
3.05
100.0
29.4
40.8
80.1
91.1
3.07
101.6
29.6
110
90.4
95.0
3.10
105.6
30.6
41.5
95.0
95.5
3.12
106.1
30.6
41.5
99.6
96.0
3.14
106.7
30.6
41.6
50
35.8
68.9
3.94
82.3
18.5
67.0
38.8
72.3
3.99
85.9
19.2
67.7
41.8
75.6
4.03
89.4
19.8
68.4
71.3
70
52.9
83.0
4.16
97.2
21.0
70.0
56.6
85.8
4.21
100.2
21.4
70.6
60.4
88.6
4.26
103.1
21.8
90
70.0
97.0
4.38
112.0
23.2
73.1
74.5
99.3
4.44
114.5
23.4
73.6
79.0
101.6
4.49
116.9
23.6
74.1
110
87.1
111.1
4.60
126.8
25.2
76.1
92.3
112.9
4.66
128.8
25.2
76.5
97.6
114.6
4.72
130.7
25.3
77.0
50
35.7
69.3
3.78
82.2
18.3
62.9
38.7
72.6
3.82
85.6
19.0
63.5
41.8
75.9
3.86
89.0
19.7
64.0
70
53.2
81.7
3.95
95.2
20.7
65.1
56.8
84.4
3.99
98.0
21.1
65.5
60.5
87.1
4.04
100.9
21.6
66.0
90
70.6
94.1
4.12
108.2
22.9
67.2
75.0
96.3
4.17
110.5
23.1
67.6
79.3
98.4
4.22
112.7
23.3
67.9
110
88.0
106.6
4.29
121.2
24.9
69.3
93.1
108.1
4.34
122.9
24.9
69.6
98.1
109.6
4.40
124.6
24.9
69.9
50
35.6
69.7
3.63
82.0
20.3
58.9
38.7
72.9
3.66
85.4
21.1
59.3
41.7
76.2
3.69
88.7
21.8
59.6
70
53.4
80.5
3.74
93.2
22.5
60.1
57.1
83.0
3.78
95.9
23.0
60.4
60.7
85.6
3.81
98.6
23.5
60.7
90
71.2
91.3
3.86
104.4
24.6
61.3
75.4
93.2
3.90
106.5
24.9
61.6
79.7
95.1
3.94
108.6
25.1
61.8
110
89.0
102.1
3.97
115.6
26.6
62.5
93.8
103.3
4.02
117.0
26.6
62.7
98.6
104.6
4.07
118.5
26.6
62.9
50
36.8
63.8
4.74
80.0
13.5
86.5
39.6
66.7
4.78
83.0
13.9
87.1
42.4
69.6
4.82
86.1
14.4
87.7
70
53.3
80.8
5.03
98.0
16.1
90.2
57.0
83.6
5.08
101.0
16.5
90.8
60.6
86.4
5.14
104.0
16.8
91.4
90
69.8
97.8
5.31
115.9
18.4
93.9
74.3
100.5
5.38
118.9
18.7
94.5
78.8
103.3
5.45
121.9
18.9
95.1
Operation not recommended
50
36.7
64.5
4.56
80.0
14.1
82.6
39.5
67.4
4.59
83.1
14.7
83.1
42.4
70.4
4.63
86.1
15.2
83.5
70
53.4
80.3
4.78
96.6
16.8
85.3
57.1
83.0
4.83
99.5
17.2
85.7
60.7
85.8
4.88
102.4
17.6
86.2
90
70.2
96.1
5.00
113.2
19.2
87.9
74.6
98.7
5.07
116.0
19.5
88.4
79.0
101.2
5.13
118.7
19.7
88.8
Operation not recommended
50
36.6
65.1
4.37
80.0
14.9
78.7
39.4
68.1
4.40
83.1
15.5
79.0
42.3
71.1
4.43
86.2
16.0
79.4
70
53.6
79.8
4.53
95.2
17.6
80.3
57.2
82.5
4.57
98.1
18.0
80.6
60.8
85.1
4.62
100.9
18.4
80.9
82.5
90
70.5
94.4
4.68
110.4
20.2
82.0
74.9
96.8
4.75
113.0
20.4
82.3
79.2
99.2
4.81
115.6
20.6
110
87.5
109.1
4.84
125.6
22.5
83.6
92.6
111.2
4.92
127.9
22.6
83.9
97.7
113.2
5.00
130.3
22.6
84.1
50
38.3
56.8
6.04
77.4
10.1
106.0
40.8
59.2
6.08
79.9
10.5
106.5
43.3
61.5
6.12
82.4
10.8
107.0
70
54.9
73.1
6.36
94.8
12.3
109.5
58.2
75.5
6.41
97.3
12.6
110.1
61.6
77.8
6.46
99.9
12.9
110.6
90
71.6
89.4
6.68
112.2
14.2
113.1
75.7
91.8
6.74
114.8
14.5
113.7
79.8
94.1
6.81
117.4
14.7
114.2
Operation not recommended
50
38.1
57.5
5.82
77.4
9.9
102.2
40.7
59.9
5.85
79.9
10.2
102.6
43.2
62.4
5.88
82.4
10.6
103.0
70
54.9
73.2
6.07
93.9
12.1
104.8
58.2
75.5
6.11
96.4
12.4
105.2
61.6
77.9
6.16
98.9
12.6
105.6
90
71.7
88.8
6.32
110.4
14.0
107.5
75.8
91.1
6.38
112.9
14.3
107.9
79.9
93.4
6.43
115.3
14.5
108.2
Operation not recommended
50
38.0
58.3
5.60
77.4
11.2
98.4
40.6
60.7
5.63
79.9
11.6
98.7
43.1
63.2
5.65
82.5
12.0
99.0
70
54.9
73.3
5.79
93.0
13.5
100.1
58.2
75.6
5.82
95.4
13.9
100.4
61.5
77.9
5.85
97.9
14.2
100.6
90
71.8
88.3
5.97
108.6
15.7
101.8
75.9
90.4
6.01
110.9
16.0
102.0
80.0
92.6
6.06
113.3
16.2
102.3
Operation not recommended
50
39.7
49.8
7.34
74.9
6.8
125.4
42.0
51.6
7.38
76.8
7.0
125.8
44.2
53.4
7.41
78.7
7.2
126.2
70
56.5
65.4
7.69
91.6
8.5
128.9
59.5
67.3
7.74
93.7
8.7
129.3
62.5
69.2
7.78
95.8
8.9
129.7
90
Operation not recommended
50
39.6
50.6
7.09
74.8
7.1
121.8
41.8
52.5
7.11
76.7
7.4
122.1
44.1
54.4
7.14
78.7
7.6
122.4
70
56.4
66.1
7.37
91.2
9.0
124.4
59.4
68.0
7.40
93.3
9.2
124.7
62.4
69.9
7.44
95.3
9.4
125.0
90
Operation not recommended
110
19
HR
MBTUH
83.1
110
110
Power
kW
92.2
110
10
TC
MBTUH
71.0
110
19
EER
LLT
°F
52.9
110
90
LST
°F
70
110
19
Load Flow-19 GPM
HR
MBTUH
90
110
70
TC
Power
MBTUH
kW
50
39.4
51.4
6.83
74.7
7.5
118.1
41.7
53.4
6.85
76.7
7.8
118.3
44.0
55.3
6.87
78.7
8.0
118.5
70
56.2
66.7
7.04
90.8
9.5
119.9
59.3
68.7
7.07
92.8
9.7
120.1
62.3
70.7
7.09
94.9
10.0
120.3
90
110
Operation not recommended
8/20/09
42
NSW SPECIFICATION CATALOG
NSW075 - Performance Data cont.
Heating Capacity
Source
EST
°F
Flow
GPM
Load Flow-10 GPM
ELT
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-14.5 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
Load Flow-19 GPM
COP
LST
°F
LLT
°F
HC
MBTUH
Power
kW
HE
MBTUH
COP
LST
°F
60
14.5
19
10
14.5
19
10
50
14.5
19
10
70
Operation not recommended
120
25
30
80
100
14.5
19
10
60
72.1
58.8
3.90
45.5
4.42
20.1
68.4
58.9
3.78
46.0
4.57
20.0
66.4
59.0
3.66
46.5
4.72
19.95
80
91.8
57.4
5.11
40.0
3.29
20.7
88.2
57.5
4.97
40.6
3.39
20.6
86.2
57.6
4.82
41.1
3.50
20.5
100
111.6
56.1
6.32
34.5
2.60
21.3
108.0
56.1
6.15
35.1
2.67
21.2
106.1
56.1
5.98
35.7
2.75
21.1
120
131.3
54.7
7.53
29.0
2.13
21.9
127.8
54.7
7.34
29.7
2.18
21.8
125.9
54.7
7.14
30.3
2.24
21.7
20.0
60
72.6
61.1
3.90
47.8
4.59
20.1
69.6
61.2
3.79
48.3
4.74
20.0
66.7
61.3
3.68
48.7
4.88
80
92.3
59.7
5.12
42.3
3.42
21.3
89.4
59.8
4.99
42.8
3.52
21.2
86.5
59.9
4.85
43.3
3.61
21.1
100
112.0
58.4
6.35
36.7
2.69
22.4
109.2
58.4
6.19
37.3
2.77
22.3
106.3
58.4
6.03
37.9
2.84
22.2
120
131.8
57.0
7.57
31.2
2.21
23.6
129.0
57.0
7.39
31.8
2.26
23.4
126.2
57.0
7.20
32.4
2.32
23.3
60
73.1
63.5
3.9
50.1
4.74
22.2
70.0
63.6
3.82
50.5
4.88
22.2
66.9
63.7
3.7
51.0
5.03
22.1
80
92.7
61.7
5.2
44.1
3.51
23.2
89.7
61.8
5.02
44.6
3.60
23.1
86.7
61.9
4.9
45.2
3.71
23.0
100
112.4
59.9
6.4
38.1
2.75
24.1
109.4
60.0
6.23
38.7
2.82
24.0
106.5
60.1
6.1
39.4
2.90
23.9
120
132.0
58.2
7.6
32.1
2.24
25.0
129.2
58.2
7.43
32.8
2.29
24.9
126.3
58.3
7.2
33.5
2.36
24.8
60
73.6
65.8
3.95
52.3
4.88
24.3
70.4
65.9
3.84
52.8
5.03
24.3
67.2
66.0
3.73
53.3
5.18
24.2
80
93.1
63.6
5.19
45.9
3.59
25.0
90.0
63.7
5.05
46.5
3.70
25.0
86.9
63.8
4.92
47.1
3.80
24.9
25.6
100
112.7
61.5
6.43
39.5
2.80
25.7
109.7
61.6
6.27
40.2
2.88
25.6
106.7
61.7
6.10
40.8
2.96
120
132.2
59.3
7.67
33.1
2.27
26.4
129.3
59.4
7.48
33.9
2.33
26.3
126.5
59.5
7.29
34.6
2.39
26.2
60
76.7
81.0
4.2
66.7
5.60
36.2
72.7
81.0
4.02
67.3
5.85
36.1
68.8
81.0
3.9
67.8
6.10
36.0
80
96.1
78.2
5.4
59.6
4.17
37.7
92.3
78.2
5.24
60.3
4.34
37.6
88.5
78.3
5.1
61.0
4.50
37.4
100
115.5
75.3
6.7
52.5
3.28
39.2
111.9
75.4
6.46
53.3
3.39
39.0
108.2
75.5
6.3
54.2
3.51
38.8
120
134.9
72.5
7.9
45.4
2.66
40.6
131.4
72.6
7.69
46.4
2.75
40.4
127.9
72.8
7.5
47.3
2.84
40.2
60
77.4
84.5
4.2
70.1
5.86
39.1
73.3
84.4
4.07
70.5
6.08
39.1
69.2
84.3
3.9
71.0
6.32
39.0
80
96.7
81.1
5.5
62.4
4.35
40.3
92.8
81.1
5.29
63.1
4.50
40.2
88.8
81.2
5.1
63.7
4.66
40.1
100
116.0
77.7
6.7
54.8
3.39
41.5
112.2
77.9
6.51
55.7
3.51
41.4
108.5
78.0
6.3
56.5
3.63
41.2
120
135.3
74.4
8.0
47.2
2.74
42.7
131.7
74.6
7.73
48.2
2.83
42.5
128.1
74.8
7.5
49.3
2.93
42.3
42.0
60
78.1
87.9
4.3
73.4
5.98
42.0
73.8
87.8
4.11
73.8
6.19
42.0
69.5
87.7
4.0
74.1
6.40
80
97.3
84.0
5.5
65.2
4.42
42.9
93.2
84.1
5.33
65.9
4.58
42.9
89.1
84.1
5.2
66.5
4.74
42.8
100
116.5
80.2
6.8
57.1
3.44
43.8
112.6
80.3
6.55
58.0
3.57
43.7
108.7
80.5
6.3
58.9
3.69
43.6
120
135.7
76.3
8.0
48.9
2.77
44.7
132.0
76.6
7.77
50.1
2.87
44.6
128.3
76.9
7.5
51.2
2.98
44.4
60
80.8
100.9
4.48
85.6
6.60
52.3
75.9
100.8
4.26
86.3
6.96
52.2
70.9
100.7
4.03
86.9
7.32
52.1
80
99.9
96.6
5.74
77.0
4.93
54.1
95.2
96.6
5.50
77.8
5.16
54.0
90.5
96.6
5.26
78.7
5.39
53.8
100
119.0
92.2
7.00
68.3
3.86
55.9
114.5
92.4
6.74
69.4
4.02
55.7
110.0
92.6
6.48
70.4
4.18
55.5
120
138.1
87.9
8.26
59.7
3.12
57.7
133.9
88.2
7.99
60.9
3.24
57.4
129.6
88.5
7.71
62.2
3.36
57.2
60
81.7
105.5
4.5
90.0
6.84
56.0
76.6
105.2
4.32
90.5
7.14
56.0
71.4
105.0
4.1
91.0
7.48
55.9
80
100.7
100.5
5.8
80.8
5.09
57.5
95.8
100.5
5.55
81.5
5.30
57.4
90.9
100.5
5.3
82.3
5.53
57.2
100
119.7
95.6
7.0
71.5
3.97
58.9
115.1
95.7
6.79
72.6
4.13
58.7
110.4
95.9
6.5
73.7
4.31
58.6
120
138.7
90.6
8.3
62.2
3.19
60.3
134.3
91.0
8.02
63.6
3.32
60.1
129.9
91.4
7.7
65.0
3.46
59.9
60
82.7
110.0
4.55
94.5
7.08
59.7
77.3
109.7
4.38
94.7
7.35
59.7
71.9
109.3
4.20
95.0
7.62
59.7
80
101.5
104.4
5.82
84.6
5.26
60.8
96.4
104.4
5.60
85.2
5.47
60.7
91.3
104.3
5.39
85.9
5.67
60.7
100
120.4
98.9
7.09
74.7
4.09
61.9
115.6
99.1
6.83
75.8
4.26
61.8
110.8
99.3
6.57
76.9
4.43
61.7
120
139.2
93.3
8.36
64.8
3.27
63.0
134.7
93.8
8.06
66.3
3.42
62.8
130.2
94.3
7.76
67.8
3.56
62.6
60
84.8
120.1
4.74
103.9
7.42
68.6
78.6
117.4
4.45
102.2
7.75
68.9
72.4
114.6
4.16
100.4
8.07
69.3
80
103.7
114.9
6.02
94.4
5.59
70.5
97.9
113.2
5.71
93.7
5.82
70.7
92.1
111.5
5.39
93.1
6.06
70.8
74.0
100
Operation not recommended
120
90
14.5
60
85.3
122.8
4.77
106.5
7.55
73.4
79.0
119.5
4.49
104.2
7.80
73.7
72.6
116.2
4.22
101.8
8.08
80
104.2
117.6
6.07
96.8
5.67
74.9
98.3
115.4
5.76
95.8
5.88
75.0
92.3
113.3
5.44
94.7
6.10
75.2
100
123.2
112.4
7.38
87.2
4.46
76.4
117.6
111.4
7.02
87.4
4.65
76.4
112.0
110.4
6.67
87.7
4.85
76.3
60
85.9
125.4
4.79
109.1
7.67
78.2
79.3
121.6
4.53
106.1
7.88
78.5
72.8
117.8
4.27
103.2
8.08
78.8
80
104.8
120.2
6.13
99.3
5.75
79.2
98.6
117.7
5.81
97.9
5.95
79.4
92.5
115.2
5.49
96.4
6.15
79.5
100
123.7
115.0
7.46
89.5
4.51
80.3
118.0
113.8
7.08
89.6
4.72
80.3
112.2
112.5
6.70
89.7
4.92
80.3
120
19
120
Operation not recommended
Operation not recommended
8/19/09
43
NSW SPECIFICATION CATALOG
Wiring Schematics
NSW Heating Only - 208-230/60/1
Compressor
External
S
External
G
C
Blue
G
R
Red
Load
Pump
T1
NOTE 2
T2
T1
L1
Tan
T2
SFB
LFB
L2
L1
Black
Cap
Source
Pump
L2
Unit
Power Supply
208-230/60/1
T1
T2
CC
Blue/Wht
Brown/Blk
L2
L1
G
Brown/Wht
LPR
Brown
Blue
Blue
230V
Green/Yellow
Red
208V
Black
Com
NOTE 1
PS1
B
C
D
Transformer
Red
24V
Black
Black/
White
Yellow
24 V
9
10
11
C
LO
HI
CG
CC
HP
L P LP
R
L P LP
R
Orange
Gray
Gray
RT
RT
X1 E LT E LT
X2 X1
8
Violet
Violet
Orange
Not Used
X2
Orange
Yellow
Yellow
1
Not Used
X3
5
6
7
Microprocessor Control
Not Used
X3
4
RT
3
Black
X2
ELT
Not Used
RV RVG
MODE
Interface Panel
12
SI
P3
Not Used
P2
Black
X3
2
X3
TB
1
T
T
SI
HP
Black
White/Blue
White/Blue
Red
RT
C
HP
Black
TEST
PIN
1
HP
Violet
LP
HI
CC
Blk/Wht
HP
X1 E LT E LT R T
CC
Orange
X2 X1
Note 3
LPR
Black/Wht
CG
Green/Yellow
LO
P1
Black/Gry
Violet
04/02/09
R C Y1 O X1
Legend
Factory low voltage wiring
Factory line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
Quick connect terminal
L1
P
1
3
Fuse
Compressor contactor
Reversing Valve output
Entering Load Side Water Temperature
High pressure switch
Low pressure switch
Load Pump Relay
Refrigerant Liquid line Temperature
Slave Input relay
Reversing Valve Coil
Load Pump Fuse Block
Source Pump Fuse Block
2
Screw terminal - field connection
CC RV ELT HP LP LPR RT SI RC LFB SFB -
Switch - High pressure
Field wire lug
Ground
Switch - Low pressure
Relay Contacts N.O., N.C.
Relay coil
Polarized connector
Capacitor
T
44
Thermistor
Notes:
1. Taped and wire tied off
2. 3 AG 10 Amp fuse
3. For cycle load pump with a geo storage
tank. Remove the orange wire from the LPR
relay coil and install a jumper between the
LPR relay coil and the comp contactor coil
as shown in the schematic above.
NSW SPECIFICATION CATALOG
Wiring Schematics cont.
NSW Reversible with IntelliStart - 208-230/60/1
External
Compressor
S
External
G
Blue
G
PB
2
C
1
R
Red
Red
Run Winding
IntelliStart
Load
Pump
T1
NOTE2
T2
T1
L1
L2
L1
Active
Blue
Black
Tan
T2
Start
Black
Black
SFB
LFB
Pink
Cap
Source
Pump
L2
CC
Blue/Wht
Brown/Blk
L2
Common
Unit
Power Supply
208-230/60/1
T1
T2
L1
G
Brown/Wht
LPR
Brown
Blue
Blue
230V
Green/Yellow
Red
208 V
Black
Com
NOTE 1
PS1
B
C
D
Transformer
Red
24V
Black
Black/
White
Yellow
24 V
RVR
11
C
HI
C
HI
CG
CC
HP
HP
CC
CG
LO
Orange
Gray
Gray
RT
RT
9
10
X1 E LT E LT
Violet
Violet
Orange
X2 X1
8
Yellow
Violet
X2
NOTE 3
Orange
X3
5
6
7
1
Not Used
X3
Orange
Yellow
4
RT
Org/Grn
3
Black
X1 E LT E LT R T
Yellow
Black
X2 X1
Yellow
T
P2
2
Org/Gry
ELT
RVR
SI
TB
1
Black
T
X2
Blue
T
RT
X3
Black
RT
X3
Blue
NOTE 4
Microprocessor Control
HP
Black
White/Blue
White/Blue
Red
LP
HP
Black
P3
Not Used
L P LP
Violet
L P LP
Blk/Wht
HP
TEST
PIN
1
R
CC
Black/Org
Orange
R
Note 5
LPR
Black/Wht
Green/Yellow
LO
P1
Black/Gry
Not Used
RV RVG
MODE
Interface Panel
12
RVR
Org/Brn
SIR
Org/Wht
Org/Blk
RC
04/02/09
R C Y1 O X1
Legend
Factory low voltage wiring
Factory line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
Quick connect terminal
Compressor Contactor
Reversing Valve Output
Entering Load Side Water Temperature
High Pressure Switch
Low Pressure Switch
Load Pump Relay Contacts
Refrigerant Liquid Line Temperature
Slave Input Relay
Reversing Valve Coil
Load Pump Fuse Block
Source Pump Fuse Block
Reversing Valve Relay
L1
P
1
3
Fuse
-
2
Screw terminal - field connection
CC
RV
ELT
HP
LP
LPR
RT
SIR
RC
LFB
SFB
RVR
Switch - High pressure
Field wire lug
Ground
Switch - Low pressure
Relay Contacts N.O., N.C.
Relay coil
Polarized connector
Capacitor
T
45
Thermistor
Notes:
1. Taped and wire tied off
2. 3AG 10 Amp fuse
3. Move jumper wire to 5 and 6 for reversible
secondary unit.
4. Black Thermistor - Source Coax Blue
Thermistor - Load Coax
5. For cycle load pump with a geo storage tank.
Remove the orange wire from the LPR relay coil
and install a jumper between the LPR relay coil
and the comp contactor coil as shown in the
schematic above.
NSW SPECIFICATION CATALOG
Wiring Schematics - Commercial
NSW Heating Only - 208-230/60/3
Compressor
T3
T1
T2
Red
Blue
Black
Bl
Unit
Power Supply
208-230/60/3
T3
T2
L3
L2
T1
CC
L1
G
Blk/Wht (69)
Yellow (68)
Green/Yellow (67)
J8
T
T
EST
T
LLT
T
25
AI5
+
AI4
+
26
27
28
29
31
32
33
36
38
39
40
41
PWM2
PWM2 Com
PWM1
A15
J10 24VAC Com
DI12
DI11
45
DI10
46
DI9
DI8
47
DI7
48
42
NOTE 6
NOTE 7
1
Black (59)
43
44
2
49
50
Blue (66)
LP
Red (60)
Gray (61)
Blue (62)
Black (63)
Black (64)
Black (65)
51
52
53
54
55
56
J9
20
Black (19 )
19
18
Black(18)
18
17
Black(17)
17
16
Black(16)
15
Black (15)
D06
13
Black (38)
Black (37)
16
Johnson
FX-10
Black (14)
14
Black (35)
Black (13)
13
Black (33)
Black (12)
12
Yellow (34)
11
Black (31)
10
Black (30)
12
D05
11
Black (11)
D04
10
Black (10)
9
Black (9)
8
Black (8)
9
7
Black (7)
8
Black (28)
7
Black (27)
D03
6
D02
5
4
DI 3/4/5/6/ Com
DI6
DI5
DI4
DI3
DI2
9VDC
DI1
Black (40)
15
14
NOTE 2
NOTE 3
3
PB2
Black (53)
Black (26)
Black (55)
Black (56)
Black (57)
Black (58)
D07
Black (20 )
19
A11
A13
A23
J2
A32
37
D08
A35 A31
35
D09
A33
Orange (51)
Org/Wht (52)
A12 A21
T
A25 A2 2
AI6
+
AI2
+
5VDC
AI1
+
LED
5VDC
30
34
ELT
20
5VDC
AI3
+
A34
T
SFP
24
A24
A1 4
LFP
Brown (41)
Brown (42)
White (43)
Wht/Blu (44)
Black(45)
Blk/Red (46)
Gray (47)
Gray/Wht (48)
Blue (49)
Blue/Wht (50)
GROUND
2 4VAC Com
2 4VAC
23
LST
3
D01
6
Black (4)
Black (3)
5
Black (25)
4
Violet (24)
HP
Black (2)
2
Black (1)
1
Green/Yello
Black (26)
Yellow (21)
Black (53)
Black (55)
Black (56)
Black (57)
Black (58)
Black (63)
Black (64)
Black (65)
97P799-05
4/02/09
Legend
Factory low voltage wiring
Factory line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
Field Zone Sensor Wiring
L1
Internal junction
Switch - High pressure
Field wire lug
Switch - Low pressure
Ground
Open Jumper
Relay ContactsN.O., N.C.
T
Closed Jumper
Thermistor
Relay coil
P
1 2 3
Polarized connector
46
CC - Compressor contactor
CP - Compressor Proving
ELT - Entering Load Water Temp
ES - Emergency Shutdown
EST - Entering Source Water Temp
HP - High pressure switch
LFP - Load Freeze Protection
LFS - Load Flow Proving Switch
LLT - Leaving Load Water Temp
LP - Low pressure switch
LST - Leaving Source Water Temp
RV - Reversing Valve coil
SFP - Source Freeze Protection
SFS - Source Flow Proving Switch
TB - Terminal Board
Black (54
CC
3
2
1
J
7
Black (6)
Black (5)
Black (22)
Notes:
1 - Switch Blue and Red wires for 208V operation
2 - Disconnect for 15 degree load side freeze detection
3 - Disconnect for 15 degree source side freeze detection
4 - Acc 1 and ACC 2 outputs are cycled with the compressor.
5 - R, C, Y1, and O inputs are for use with an aqua stat.
6 - If no flow proving switch is being used on the load side, the
LF terminal on the terminal board must be jumpered to the R
terminal for the unit to operate.
7 - If no flow proving switch is being used on the source side, the
SF terminal on the terminal board must be jumpered to the R
terminal for the unit to operate.
8 - A closed contact will enable the emergency shutdown input
(ES) and the compressor proving input (CP).
9 - Primary over-ride input (POI) on a primary unit must be wired
to R through a normally open contact. If the POI input is on a
secondary unit connect the Primary Over-ride output (PO) from
the primary unit to the POI terminal on the secondary unit.
10 - Apply 24VAC to the O terminal for cooling.
NSW SPECIFICATION CATALOG
Wiring Schematics - Commercial cont.
NSW Heating Only - 208-230/60/3
TB
Field Connection Diagram
(For units using Set Point control mode
with or without a secondary unit.)
Red 208V
NOTE 1
Transformer
NOTE 7
NOTE 6
Black
Blue 230V
PB1
24VAC
24V COM
LV
Load Valve Output
Load Flow
Proving Switch
LF
X2
Acc 2
Primary Load
Over- ride Input
POI
X1
Acc 1
Rev Valve
L
Alarm
Source Flow
Proving Switch
To Primary Load Over-ride Input
(POI) of secondary unit.
PO
Primary Load
Over-ride Output
Comp 1
Y1
To Y1 input of secondary unit.
SE
Secondary Unit
Enable
Emergency
Shutdown
ES
3
2
1
Yellow
Yellow (21)
Black (36)
)
Yellow (29)
1
Black (R)
Black (40)
2
Black(LV)
Black (38)
3
Black (X2)
Black (35)
4
Black (X1)
Black (33)
5
Black (L)
Black (31)
6
Black (30)
7
Black (SE)
Black (28)
8
Black (SN)
Black (27)
9
Black (SHC)
NOTE 6
Violet (70 )
HP
(25)
Black (53)
10
Black (C)
11
Black (LF)
Black (55)
12
Black(POI)
Black (56)
13
Black (O)
Black (54)
Black (57)
CC
(24)
Black (PO)
14
Black(SF)
NOTE 7
Green/Yellow (72)
Black (58)
R
24VAC
LV
Load Valve
Output
X2
Acc2
X1
Acc1
L
Alarm
PO
Primary Load
Over-ride Output
SE
Secondary Unit
Enable
SN
Secondary
24VAC Input
SHC
Secondary Unit
Heat/Cool
C
LF
24V COM
Load Flow
Proving Switch
POI Primary Load
Over-ride Input
O
Rev Valve
SF
Source Flow
Proving Switch
Y1
Comp 1
Emergency
Shutdown
15
Black (Y1)
16
Black (ES)
ES
17
Black (9DC)
9 VDC - Use
9DC for CP and ES
18
Black (CP)
CP
Yellow (21)
4/02/09
ation
detection
ze detection
he compressor.
aqua stat.
he load side, the
jumpered to the R
he source side, the
jumpered to the R
cy shutdown input
P).
unit must be wired
he POI input is on a
ride output (PO) from
secondary unit.
.
47
Compressor
Proving Switch
C
R
Blk/Wht
NOTE 9
O
SF
To R from secondary unit.
SN
Secondary
24VAC Input
9 VDC - Use
for CP and ES
9 DC
To O input of secondary unit.
SHC
Secondary Unit
Heat /Cool
Compressor
Proving Switch
CP
NOTE 8
TB
Field Connection Diagram
(For units using aqua stat control
mode.)
NOTE 6
NOTE 9
C
R
24VAC
24V COM
LV
Load Valve Output
Load Flow
Proving Switch
LF
X2
Acc 2
Primary Load
Over- ride Input
POI
X1
Acc 1
Rev Valve
L
Alarm
Source Flow
Proving Switch
PO
Primary Load
Over -ride Output
Comp 1
Y1
SE
Secondary Unit
Enable
Emergency
Shutdown
ES
SN
Secondary
24VAC Input
9 VDC - Use
for CP and ES
9 DC
Compressor
Proving Switch
CP
Secondary Unit
SHC
Heat /Cool
NOTE 7
O
NOTE 10
SF
97P799-05
Aqua Stat Y1
NOTE 8
4/02/09
NSW SPECIFICATION CATALOG
Wiring Schematics - Commercial cont.
NSW Reversible - 575/460/3
Compressor
T3
T1
T2
Red
Blue
Black
Black
Blue
Unit
Power Supply
460/60/3
575/60/3
T3
T2
T1
CC
L3
L2
L1
G
Blk/Wht (69)
Yellow (68)
Green/Yellow (67)
T
LFP
T
SFP
T
AI4
+
AI6
+
AI2
+
28
29
30
31
32
33
35
36
38
40
41
NOTE 6
1
J10 24VAC Com
42
43
DI12
44
DI11
45
DI10
DI9
46
DI8
47
DI7
48
Black (59)
2
49
50
Blue (66)
LP
Red (60)
Gray (61)
Blue (62)
Black (63)
Black (64)
Black (65)
51
52
53
54
55
56
J9
20
Black (19)
19
18
Black(18)
18
17
Black(17)
17
16
Black(16)
15
Black (15)
D06
Black (38)
Black (37)
16
14
Black (13)
13
Black (33)
12
Yellow (34)
11
Black (31)
10
Black (30)
D05
11
Black (11 )
D04
10
Black (10)
9
Black (9)
8
Black(8)
7
Black (7)
D03
D02
5
4
Black (35)
Black (12)
12
Johnson
FX-10
Black (14 )
13
6
DI 3/4/5/6/ Com
DI6
DI5
DI4
DI3
DI2
9VDC
DI1
Black (40)
15
14
NOTE 1
NOTE 2
3
PB2
Black (53)
Black (26)
Black (55)
Black (56)
Black (57)
Black (58)
A15
NOTE 5
PWM2
PWM2 Com
PWM1
Black (20)
19
A11
A13
A23
39
J2
A32
LED
5VDC
37
D07
A33
5VDC
AI1
+
34
Orange (51)
Org/Wht (52)
D08
A35 A31
T
27
D09
A34
ELT
26
A25 A2 2
T
25
20
5VDC
AI3
+
AI5
+
A12 A21
T
LLT
J8
24
A24
A1 4
EST
Brown (41)
Brown (42)
White (43)
Wht/Blu (44)
Black(45)
Blk/Red (46)
Gray (47)
Gray/Wht (48)
Blue (49)
Blue/Wht (50)
GROUND
2 4VAC Com
2 4VAC
23
LST
9
Black (6)
Black (5)
Black (22)
8
Black (28)
7
Black (27)
Violet
6
Black (4)
5
3
D01
2
1
J
7
Black (3)
4
Violet (24)
3
Orange (23)
Black (2)
2
Black (1)
1
HP
Black (25)
CC
Green/Yellow (7
Oran
RV
Black (26)
Yellow (21)
Black (53)
Black (55)
Black (56)
Black (57)
Black (58)
Black (63)
Black (64)
Black (65)
97P799-08
4/02/09
Legend
Factory low voltage wiring
Factory line voltage wiring
Field low voltage wiring
Field line voltage wiring
Optional block
Field Zone Sensor Wiring
L1
Internal junction
Switch - High pressure
Field wire lug
Switch - Low pressure
Ground
Open Jumper
Relay ContactsN.O., N.C.
T
Closed Jumper
Thermistor
Relay coil
P
1 2 3
Polarized connector
48
CC - Compressor contactor
CP - Compressor Proving
ELT - Entering Load Water Temp
ES - Emergency Shutdown
EST - Entering Source Water Temp
HP - High pressure switch
LFP - Load Freeze Protection
LFS - Load Flow Proving Switch
LLT - Leaving Load Water Temp
LP - Low pressure switch
LST - Leaving Source Water Temp
RV - Reversing Valve coil
SFP - Source Freeze Protection
SFS - Source Flow Proving Switch
TB - Terminal Board
Black (54)
Notes:
1 - Disconnect for 15 degree load side freeze detection
2 - Disconnect for 15 degree source side freeze detection
3 - Acc 1 and ACC 2 outputs are cycled with the compressor.
4 - R, C, Y1, and O inputs are for use with an aqua stat.
5 - If no flow proving switch is being used on the load side, the
LF terminal on the terminal board must be jumpered to the R
terminal for the unit to operate.
6 - If no flow proving switch is being used on the source side, the
SF terminal on the terminal board must be jumpered to the R
terminal for the unit to operate.
7 - A closed contact will enable the emergency shutdown input (ES)
and the compressor proving input (CP).
8 - Primary over-ride input (POI) on a primary unit must be wired to
R through a normally open contact. If the POI input is on a
secondary unit connect the Primary Over-ride output (PO) from
the primary unit to the POI terminal on the secondary unit.
9 - Apply 24VAC to the O terminal for cooling.
NSW SPECIFICATION CATALOG
Wiring Schematics - Commercial cont.
NSW Reversible - 575/460/3
TB
Field Connection Diagram
(For units using Set Point control mode
with or without a secondary unit.)
Transformer
NOTE 6
NOTE 5
Black
Blue
PB1
R
24VAC
24V COM
LV
Load Valve Output
Load Flow
Proving Switch
LF
X2
Acc 2
Primary Load
Over- ride Input
POI
X1
Acc 1
Rev Valve
L
Alarm
Source Flow
Proving Switch
To Primary Load Over-ride Input
(POI) of secondary unit.
PO
Primary Load
Over -ride Output
Comp 1
Y1
To Y1 input of secondary unit.
SE
Secondary Unit
Enable
Emergency
Shutdown
ES
To R from secondary unit.
SN
Secondary
24VAC Input
9 VDC - Use
for CP and ES
9 DC
To O input of secondary unit.
Secondary Unit
SHC
Heat /Cool
Compressor
Proving Switch
CP
3
2
1
Yellow
Yellow (21)
Black (36)
0)
38)
35)
33)
34)
Yellow (29)
1
Black (R)
Black (40)
2
Black(LV)
Black (38)
3
Black (X2)
Black (35)
4
Black (X1)
Black (33)
5
Black (L)
Black (31)
6
Black (30)
7
Black (SE)
Black (28)
8
Black (SN)
Black (27)
9
Black (SHC)
10
Black (C)
1)
Black (PO)
0)
NOTE 5
8)
7)
Violet (70 )
HP
ck (25)
11
Black (LF)
12
Black(POI)
Black (56)
13
Black (O)
Black (57)
14
Black(SF)
Black (58)
15
Black (Y1)
NOTE 6
Green/Yellow (72)
ge (23)
Black (53)
Black (55)
Black (54)
CC
et (24)
Orange (39)
RV
C
Blk/Wht
R
24VAC
LV
Load Valve
Output
X2
Acc2
NOTE 3
X1
Acc1
L
Alarm
PO
Primary Load
Over-ride Output
SE
Secondary Unit
Enable
SN
Secondary
24VAC Input
O
SF
NOTE 5
24VAC
24V COM
LV
Load Valve Output
Load Flow
Proving Switch
LF
POI
X2
Acc 2
Primary Load
Over- ride Input
C
24V COM
X1
Acc 1
Rev Valve
LF
Load Flow
Proving Switch
L
Alarm
Source Flow
Proving Switch
PO
Primary Load
Over-ride Output
Comp 1
Y1
SE
Secondary Unit
Enable
Emergency
Shutdown
ES
SN
Secondary
24VAC Input
9 VDC - Use
for CP and ES
9 DC
SHC
Secondary Unit
Heat /Cool
Compressor
Proving Switch
CP
O
Rev Valve
Source Flow
Proving Switch
Y1
Comp 1
Emergency
Shutdown
16
Black (ES)
ES
17
Black (9DC)
9 VDC - Use
9DC for CP and ES
18
Black (CP)
CP
Yellow (21)
4/02/09
e detection
eze detection
the compressor.
n aqua stat.
the load side, the
e jumpered to the R
the source side, the
e jumpered to the R
cy shutdown input (ES)
y unit must be wired to
e POI input is on a
-ride output (PO) from
e secondary unit.
g.
49
Compressor
Proving Switch
NOTE 6
NOTE 8
C
R
Secondary Unit
Heat/Cool
SF
NOTE 7
TB
Field Connection Diagram
(For units using aqua stat control
mode.)
SHC
POI Primary Load
Over-ride Input
NOTE 8
O
NOTE 9
SF
97P799-08
Aqua Stat Y1
NOTE 7
4/02/09
NSW SPECIFICATION CATALOG
Accessories and Options
IntelliStart
flow requirements. If the flow requirements are outside the
pump curve, an alternate pump will need to be obtained to
maintain the necessary flow.
• 24P501A04 - UP15-42B7 bronze volute, 3⁄4 inch sweat
connection
• EWPK1 - UP26-99F cast iron volute, 1 inch FPT flange
connection
• EWPK2 - UP26-64BF bronze volute, 1 inch FPT flange
connection
• EWPK3 - UP26-99F cast iron volute, 1-1⁄4 inch FPT flange
connection
IntelliStart is a single phase compressor soft starter which
reduces the normal start current (LRA) by 60-70%. It should
be used in applications that require low starting amps,
reduced compressor start-up noise, off-grid, and improved
start-up behavior. IntelliStart is available as a factory
installed option or a field installed kit (IS60RKL or IS60RKS).
IntelliStart is available on 208-230/60/1 voltage.
Water Connection Kits (Field Installed)
Water connection kits are available to facilitate loop side and
load side water connections.
• CKEW1 - The key 1 inch fittings needed for NSW018NSW040 water side connections (see IM1470)
• CKEW3 - The key 1 1⁄4 inch fittings needed for NSW050NSW075 water side connections (see IM1470)
• HKC8S - 1 inch x 24 inch stainless steel braided hose kit
• HKC10S - 1 1⁄4 inch x 24 inch stainless steel braided hose kit
HydroZone Tank Controller
Tank controller (HZC) that adds outdoor reset with warm
weather shutdown, setpoint control, process control, and
management of four compressor outputs for our water-towater systems.
HZAB
Earth Loop Pump Kit (Field Installed)
This is used in conjunction with the HydroZone to control
the Geo-Storage tank electric heating element.
A specially designed one or two-pump module provides all
liquid flow, fill and connection requirements for independent
single unit systems (230/60/1 only). The one-pump module
(FC1-FPT or FC1-GL) is capable of 25 feet of head at 16.0
GPM, while the two-pump module (FC2-FPT or FC1-GL) is
capable of 50 feet of head at 16.0 GPM.
Figure 7: UP15-42B7, UP26-64BF, and UP26-99F Single Pump Curve
35
UP26-99F
30
UP26-64BF
UP15-42B7
Feet of Head
25
Hot Water Generator (Factory Installed, NSW040,
NSW050, NSW060, and NSW075 Only)
An optional heat reclaiming hot water generator coil
constructed of vented double-wall copper construction
suitable for potable water is available. The coil is factory
mounted inside the unit. A DPK5 pump kit (230/60/1)
is required (field installed), which includes a DHW tank
connection and a temperature limit pump shutoff.
20
15
10
5
0
0
5
10
15
20
25
30
35
GPM
Figure 8: UP26-64BF and UP26-99F Two Pump Curve
70
Load-side Pump Kit (Field Installed)
UP26-99F (2 pumps)
60
Four (4) load pump kits are available to provide all liquid
flow requirements for independent single unit systems
(230/60/1 only). WaterFurnace part number 24P501A04
(Grundfos UP15-42B7) and EWPK2 (Grundfos UP26-64BF)
are bronze body pumps. Bronze body pumps should be
used when water conditions exist that are not compatible
with cast iron or for applications such as domestic water
heating. WaterFurnace part number EWPK1 and EWPK3
come with a cast iron body pump (Grundfos UP26-99F)
that can be used for hydronic heating applications.
UP26-64BF (2pumps)
Feet of Head
50
40
30
20
10
0
0
5
10
15
20
GPM
Calculate the system pressure drop then refer to the pump
curves in figures 7 and 8 to select the proper pump. All
four (4) of the WaterFurnace pump kits can be used for
hydronic heating applications as long as they meet the
50
25
30
35
NSW SPECIFICATION CATALOG
Accessories and Options cont.
Figure 9: Geothermal Storage Tank
30°
30°
To Geo 59˝ Dip Tube
w/1˝ x 3˝ Nipple
From Geo
1˝ x 3˝ Nipple
PRIMARY ANODE
39˝ - 80 Gallon
42˝ - 119 Gallon
8˝
3/4˝ HOT OUTLET
3/4˝ COLD INLET
w/14˝ SECONDARY ANODE
52˝ DIP TUBE
Approx. 1˝
Yellow Wire attached
to Thermistor or Thermostat
for Top Exit
T&P
VALVE
HEIGHT
Optional “To Geo”
Connection Shipped with
1-1/2˝ Pipe Plug Installed
Element Location
Lower Sensor Thermistor (12P541-01)
to be used by Water to Water Units
35-3/4˝
Optional “From Geo” Connection
Shipped with 1-1/2˝ Pipe Plug Installed
5-1/4˝
DRAIN VALVE
MODEL
NUMBER
GALLON
CAPACITY
ELEMENT
WATTAGE
(240 VOLT)
DIAMETER
NUMBER
OF
ELEMENTS
Lower Thermostat to be used
with Synergy units
R
VALUE
DIMENSIONS IN INCHES
HEIGHT
DIAMETER
APPROX.
SHIPPING
WEIGHT (lbs.)
GEO-STORAGE-80
80
4500
1
16
63-1/4
24
204
GEO-STORAGE-120
119
4500
1
16
63-1/4
28
311
51
NSW SPECIFICATION CATALOG
Engineering Guide Specifications
General
The coaxial water-to-refrigerant heat exchanger shall be
designed for low water pressure drop and constructed of
a convoluted copper (cupronickel option) inner tube and
a steel outer tube. Refrigerant-to-water heat exchangers
shall be of copper inner water tube and steel refrigerant
outer tube design, rated to withstand 600 PSIG (4135
kPa) working refrigerant pressure and 450 PSIG (3101
kPa) working water pressure. The thermostatic expansion
valve shall provide proper superheat over the entire liquid
temperature range with minimal “hunting.” The valve shall
operate bidirectionally without the use of check valves.
The liquid source water-to-water heat pump shall be a
single packaged heating only or reverse-cycle heating/
cooling unit. Dedicated non-reversing heating only units
shall be easily field convertible to cooling only units. The
unit shall be listed by a nationally recognized safety-testing
laboratory or agency, such as ETL Testing Laboratory,
Underwriters Laboratory (UL), or Canadian Standards
Association (CSA). The unit shall be rated in accordance
with Air Conditioning, Heating, and Refrigeration Institute/
International Standards Organization (AHRI/ISO) and
Canadian Standards Association (CSA-US). The liquid
source water-to-water heat pump unit, as manufactured
by WaterFurnace International, Fort Wayne, Indiana, shall
be designed to operate with source liquid temperatures
between 30°F [1.1°C] and 110°F [43.3°C] in cooling, and
between 25°F [-6.7°C] and 90°F [32.2°C] in heating.
Option: Cupronickel refrigerant-to-water heat exchanger
shall be of copper-nickel inner water tube and steel
refrigerant outer tube design, rated to withstand 600 PSIG
(4135 kPa) working refrigerant pressure and 450 PSIG (3101
kPa) working water pressure. Water lines shall also be of
cupronickel construction.
Casing and Cabinet
Option: Hot Water Generator (available on 040-075)
- Internal double wall vented hot water generator coil
refrigerant to water heat exchangers shall be of copper
inner water tube and steel refrigerant outer tube design,
rated to withstand 600 PSIG (4135 kPa) working refrigerant
pressure and 450 PSIG (3101 kPa) working water pressure.
The cabinet shall be fabricated from heavy-gauge
galvanized steel and finished with corrosion-resistant
powder coating. This corrosion protection system shall
meet the stringent 1,000 hour salt spray test per ASTM
B117. The interior shall be insulated with 1⁄2 in. thick, multidensity, coated glass fiber for noise suppression.
Option: Vented double wall water-to-refrigerant heat
exchange (available on 018 and 025) - Internal vented
double wall water-to-refrigerant coaxial heat exchangers
shall be of copper inner water tube and steel refrigerant
outer tube design, rated to withstand 600 PSIG (4136 kPA)
working refrigerant pressure and 450 PSIG (3101 kPA)
water pressure.
All units shall have separate holes and knockouts for
entrance of line voltage and low voltage control wiring. All
factory-installed wiring passing through factory knockouts
and openings shall be protected from sheet metal edges at
openings by plastic ferrules. The control box shall be field
switchable from front to back for improved application
flexibility with quick attach low voltage harnesses. The
control box is shipped standard on the opposite end of the
water connections.
Piping and Connections
Supply and return water connections shall be 1 in. [25.4
mm] for the NSW018-NSW040, 1 1⁄4 in. [31.75 mm] for
the NSW050-NSW075, and all hot water generator water
connections shall be 1⁄2 in. [12.7 mm] FPT copper fittings.
The FPT fittings shall be fixed to the cabinet by use of a
captive fitting, which eliminates the need for backup pipe
wrenches.
Refrigerant Circuit
All units shall utilize the non-ozone depleting and low
global warming potential refrigerant R-410A. All units shall
contain a sealed refrigerant circuit including a hermetic
motor-compressor, bidirectional thermostatic expansion
valve, reversing valve, coaxial tube water-to-refrigerant
heat exchanger, optional hot water generator coil, and
service ports. An optional vented double wall load coaxial
water-to-refrigerant heat exchanger is available on 018 and
025.
Electrical
A control box shall be located within the unit compressor
compartment and shall contain a 75VA transformer with
a built-in circuit breaker, 24 volt activated compressor
contactor, terminal block for thermostat wiring and
solid-state controller for complete unit operation.
Electromechanical operation WILL NOT be accepted. Units
shall be name-plated for use with time delay fuses or HACR
circuit breakers. Unit controls shall be 24 volt and provide
heating or cooling as required by the remote thermostat/
sensor.
Compressors shall be high-efficiency scroll type designed
for heat pump duty and mounted on vibration isolators.
The compressor shall be double isolation mounted using
selected durometer grommets to provide vibration free
compressor mounting. A high density sound attenuating
blanket shall be factory installed around the compressor
to reduce sound. Compressor motors shall be single-phase
PSC with overload protection.
52
NSW SPECIFICATION CATALOG
Engineering Guide Specifications cont.
Accessories
A standard microprocessor-based controller that interfaces
with an electronic thermostat to monitor and control unit
operation shall be provided. The control shall provide
operational sequencing, high and low pressure switch
monitoring, freeze detection, hot water limit thermistor
sensing, lockout mode control, hot water and loop pump
control, LED status and fault indicators, fault memory, field
selectable options and accessory output. The control shall
provide fault retry three times before locking out to limit
nuisance trips. Anti short-cycle protection shall be integral
to the control.
Hose Kits – Automatic Balancing and Ball Valves
with ‘Y’ strainer (field-installed)
WaterFurnace P/N - HHK81S (1 in. hose kit for 018-040)
HHK100S (1 1⁄4 in. hose kit for 050-075)
A flexible steel braid hose featuring Kevlar® reinforced EPDM
core with ANSI 302/304 stainless steel outer braid and
fire rated materials per ASTM E 84-00 (NFPA 255, ANSI/
UL 723 & UBC 8-1). Ball valve at one end; swivel connector
with adapter at the other end (swivel to adapter connection
via fiber or EPDM gasket). Swivel connection provides
union between heat pump and piping system. The hoses
feature brass fittings, stainless steel ferrules. A “y” strainer
is provided on one end for fluid straining and integral
“blowdown” valve. A full port ball valve shall be provided
with integral P/T (pressure/temperature) port on supply
hose and automatic balancing valve with integral P/T ports
and full port ball valve on return hose.
A detachable terminal block with screw terminals will
be provided for field control wiring. All units shall have
knockouts for entrance of low and line voltage wiring.
Option: A FX10 microprocessor-based controller that
interfaces with an electronic thermostat to monitor and
control unit operation. The control shall provide operational
sequencing, high, low, and loss of charge pressure
monitoring, freeze detection, lockout mode control, fault
memory, field selectable options and accessory output.
The control shall communicate all mode, status, fault and
lockout codes to the front end system for fast and accurate
equipment diagnosis. The control shall provide fault retry
three times before locking out to limit nuisance trips.
Specifications:
• Temperature range of 35°F [2°C] to 180°F [82°C].
• Max. working pressure of 400 psi [2756 kPa] for 1⁄2 in.
and 3⁄4 in. hose kits; max. working pressure of 350 psi
[2413 kPa] for 1 in. and 1 1⁄4 in. hose kits.
• Minimum burst pressure of four times working pressure.
Optional FX10 microprocessor control communication
protocols: N2, LonWorks, BACnet
Optional IntelliStart (compressor Soft Starter) shall be
factory installed for use in applications that require low
starting amps, reduced compressor start-up noise, off-grid,
and improved start-up behavior. IntelliStart shall reduce
normal starting current by 60% on 208/60/1 units.
53
NSW SPECIFICATION CATALOG
Notes
54
Manufactured by
WaterFurnace International, Inc.
9000 Conservation Way
Fort Wayne, IN 46809
www.waterfurnace.com
SC1006WN
08/10
Product: Type:
Size: Document:
Envision NSW
Geothermal Hydronic Heat Pump
1.5-6 Tons
Specification Catalog
©2010 WaterFurnace International, Inc., 9000 Conservation Way, Fort Wayne, IN 46809-9794. WaterFurnace has a policy of continual product research and development and
reserves the right to change design and specifications without notice.
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