50KC
Cooling Only/Electric Heat
Packaged Rooftop
14 SEER
3 to 5 Nominal Tons
Product Data
C08613
TABLE OF CONTENTS
PAGE
PAGE
FEATURES AND BENEFITS . . . . . . . . . . . . . . . . . . . . 3
APPLICATION DATA . . . . . . . . . . . . . . . . . . . . . . . . . 15
MODEL NUMBER NOMENCLATURE . . . . . . . . . . . . 4
COOLING TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
FACTORY OPTIONS & ACCESSORIES . . . . . . . . . . . 6
STATIC PRESSURE TABLES . . . . . . . . . . . . . . . . . . . 22
AHRI CAPACITY RATING . . . . . . . . . . . . . . . . . . . . . . 8
FAN PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . . . . 23
SOUND PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . . 8
SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . 48
PHYSICAL DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
GUIDE SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . 51
50KC
CURBS & WEIGHTS DIMENSIONS . . . . . . . . . . . . . 10
The Carrier rooftop unit (RTU) was designed by customers for customers. With no-- strip screw collars, handled access
panels, and more we’ve made your unit easy to install, easy to maintain and easy to use.
Easy to install:
All WeatherMakerR units are field-- convertible to horizontal air flow which makes it easy to adjust to unexpected job site
complications. Lighter units make easy replacement. Carrier 50KC rooftops fit on existing Carrier curbs dating back to
1989. Also, our large control box gives you room to work and room to mount Carrier accessory controls.
Easy to maintain:
Easy access handles by Carrier provide quick and easy access to all normally serviced components. Our “no-- strip” screw
system has superior holding power and guides screws into position while preventing the screw from stripping the unit’s
metal. Take accurate pressure readings by reading condenser pressure with panels on. Simply remove the black, composite
plug, route your gauge line(s) through the hole, and connect them to the refrigeration service valve(s).
Easy to use:
The newly designed, central terminal board by Carrier puts all your connections and troubleshooting points in one
convenient place, standard. Most low voltage connections are made to the same board and make it easy to find what you’re
looking for and easy to access it. Carrier rooftops have high and low pressure switches, a filter drier, and 2-- in (51mm)
filters standard.
2
FEATURES AND BENEFITS
S Single-- stage cooling capacity control on 04 to 06 models.
S SEER’s up to 14.1.
S EER’s up to 12.0
S Up to 28% lighter than similar industry units. Lighter rooftops make easier replacement jobs.
S 3-- 5 ton units fit on existing Carrier rooftop curbs making the utility connections the same. This saves time and money on
replacement jobs.
S Standardized components and layout. Standardized components and controls make service and stocking parts easier.
S Scroll compressors on all units. This makes service, stocking parts, replacement, and troubleshooting easier.
S Field convertible airflow (3-- 5 tons). Being able to convert a unit from vertical airflow to horizontal makes it easy to
overcome job site complications.
S Standard Direct Drive - ECM indoor motor with optional belt drive system to meet nearly all applications.
50KC
S Provisions for bottom or side condensate drain.
S Capable of thru-- the-- base or thru-- the-- curb electrical routing.
S Single-- point electrical connection.
S Sloped, composite drain pan sheds water; and won’t rust.
S Standardized controls and control box layout. Standardized components and controls make stocking parts and service easier.
S Clean, large, easy to use control box.
S Color-- coded wiring.
S Large, laminated wiring and power wiring drawings which are affixed to unit make troubleshooting easy.
S Single, central terminal board for test and wiring connections.
S Fast-- access, handled, panels for easy access to the blower and blower motor, control box, and compressors.
S “No-- strip” screw system guides screws into the panel and captures them tightly without stripping the screw, the panel, or
the unit.
S Exclusive, newly-- design indoor refrigerant header for easier maintenance and replacement.
S Mechanical cooling (115_F to 40_F or 46_C to 4_C) standard on all models. Winter start kit allows cooling operation
down to 25_F (-- 4_C) and MotorMaster to - 20_F (-- 29_C).
S 2-- in (51mm) disposable filters on all units.
S Refrigerant filter-- drier on each circuit.
S High and low pressure switches. Added reliability with high pressure switch and low pressure switch.
S Factory-- installed Humidi-- MiZerr adaptive dehumidification system on all sizes with round tube/plate fin condenser
coils, includes MotorMaster I controller.
3
MODEL NUMBER NOMENCLATURE
Position:
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18
Example:
5
0
K
C
–
A
0
4
A
1
A
5
–
0
A
A
0
Factory Assigned
0 = Standard
1 = LTL
Unit Heat Type
50 - Electric Heat
Packaged Rooftop
Electrical Options
A = None
C = Non-Fused Disconnect
D = Thru-The-Base Connections
F = Non-Fused Disconnect and
Thru-The-Base Connections
Model Series - WeatherMaker®
KC - Standard 14 SEER Efficiency
Heat Options
- - No heat
50KC
0
Service Options
0 = None
1 = Unpowered Convenience Outlet
2 = Powered Convenience Outlet
3 = Hinged Panels
4 = Hinged Panels and
Unpowered Convenience Outlet
5 = Hinged Panels and
Powered Convenience Outlet
Refrig. Systems Options
A = Standard One-Stage cooling models
B = Standard One-Stage cooling models
with Humidi-MiZer®
Cooling Tons
04 - 3 ton
05 - 4 ton
06 - 5 ton
Intake / Exhaust Options
A = None
B = Temperature Economizer w/ Barometric Relief
F = Enthalpy Economizer w/ Barometric Relief
K = 2-Position Damper
U = Temperature Ultra Low Leak Economizer w/
Barometric Relief
W = Enthalpy Ultra Low Leak Economizer w/
Barometric Relief
Sensor Options
A = None
B = RA Smoke Detector
C = SA Smoke Detector
D = RA + SA Smoke Detector
E = CO2
F = RA Smoke Detector and CO2
G = SA Smoke Detector and CO2
H = RA + SA Smoke Detector and CO2
Base Unit Controls
0 = Electro-mechanical Controls can be used with W7212
EconoMi$er IV (Non-Fault Detection and Diagnostic)
1 = PremierLink Controller
2 = RTU Open Multi-Protocol Controller
6 = Electro-mechanical with W7220 Economizer
controller Controls. Can be used with W7220
EconoMi$er X (with Fault Detection and Diagnostic)
Indoor Fan Options
0 = Direct Drive ECM
2 = Medium Static Option
3 = High Static Option
Coil Options for Round Tube/Plate Fin Condenser Coil
(Outdoor - Indoor - Hail Guard)
A = Al/Cu - Al/Cu
B = Precoat Al/Cu - Al/Cu
C = E-coat Al/Cu - Al/Cu
D = E-coat Al/Cu - E-coat Al/Cu
E = Cu/Cu - Al/Cu
F = Cu/Cu - Cu/Cu
M = Al/Cu -Al/Cu — Louvered Hail Guard
N = Precoat Al/Cu - Al/Cu — Louvered Hail Guard
P = E-coat Al/Cu - Al/Cu — Louvered Hail Guard
Q = E-coat Al/Cu - E-coat Al/Cu — Louvered Hail Guard
R = Cu/Cu - Al/Cu — Louvered Hail Guard
S = Cu/Cu - Cu/Cu — Louvered Hail Guard
Design Revision
– = Factory Design Revision
Voltage
1 = 575/3/60
3 = 208-230/1/60
5 = 208-230/3/60
6 = 460/3/60
Note: On single phase (-3 voltage code) models, the
following are not available as a factory installed option:
- Humidi-MiZer
- Coated Coils or Cu Fin Coils
- Louvered Hail Guards
- Economizer or 2 Position Damper
- Powered 115 Volt Convenience Outlet
C14250
4
Table 1 – FACTORY-- INSTALLED OPTIONS AND FIELD-- INSTALLED ACCESSORIES
Cabinet
Coil Options
Thru ---the ---base electrical connections
Hinged Access Panels
X
Cu/Cu indoor and/or outdoor coils 5
X
Pre ---coated outdoor coils 5
X
Premium, E ---coated outdoor coils
Humidity Control
Condenser Protection
FACTORY
INSTALLED
OPTION
X
ITEM
5
X
Humidi ---MiZer Adaptive Dehumidification System 5
Condenser coil hail guard (louvered design)
5
X
X
Thermostats, temperature sensors, and subbases
Controls
Economizers
& Outdoor Air
Dampers
X
RTU Open ---protocol controller
X
Smoke detector (supply and/or return air)
X
Indoor Motor & Drive
Low Ambient
Control
Power
Options
Roof Curbs
X
Time Guard II compressor delay control circuit
X
Phase Monitor
X
EconoMi$er IV (for electro---mechanical controlled --- Non FDD
(Standard air leak damper models) 5, 6
X
X
EconoMi$er2 for DDC controls, complies with FDD (Standard
and Ultra Low Leak air damper models) 5, 7
X
X
Motorized 2 position outdoor ---air damper 5
X
X
Manual outdoor ---air damper (25% and 50%)
1
X
X
Power exhaust
Electric Heat
X
X
PremierLink DDC communicating controller
Barometric relief
Economizer
Sensors
&
IAQ Devices
FIELD
INSTALLED
ACCESSORY
X
X
X
EconoMi$er X for electro---mechanical controls, complies with
FDD (Standard and Ultra Low Leak air damper models) 5, 6
X
X
Single dry bulb temperature sensors 2
X
X
Differential dry bulb temperature sensors 2
Single enthalpy sensors 2
Differential enthalpy sensors
X
X
2
X
CO2 sensor (wall, duct, or unit mounted) 2
X
Electric Resistance Heaters
X
X
Single Point Kit
X
Multiple motor and drive packages
X
Winter start kit 3
Motormaster head pressure controller
X
X
3
X
Convenience outlet (powered) 5
X
Convenience outlet (unpowered)
X
Non ---fused disconnect 4
X
Roof curb 14---in (356mm)
X
Roof curb 24---in (610mm)
X
NOTES:
1. Included with economizer.
2. Sensors for optimizing economizer.
3. See application data for assistance.
4. Available on units with MOCP’s of 80 amps or less.
5. Not available as factory installed option on single phase (208/230/1/60) models. Use field --- installed accessory where available.
6. FDD --- (Fault Detection and Diagnostic) capability per California Title 24 section 120.2
7. Models with RTU Open DDC controls comply with California Title 24 Fault Detection and Diagnostic (FDD). PremierLink is non FDD.
5
50KC
CATEGORY
50KC
FACTORY OPTIONS AND/OR ACCESSORIES
Economizer
Non--fused Disconnect
Economizers save energy, money and improve comfort
levels in the conditioned space. They bring in fresh,
outside air for ventilation; and provide cool outside air to
cool your building. This also is the preferred method of
low ambient cooling. When integrated with CO2 sensors,
economizers can provide even more savings by coupling
the ventilation air to only that amount required based on
space occupancy. Economizers are available, installed and
tested by the factory, with either enthalpy or temperature
dry-- bulb inputs. There are also models for
electromechanical and direct digital controllers.
Additional sensors are available as accessories to optimize
the economizer. Economizers include gravity controlled
barometric relief that helps equalize building pressure and
ambient air pressures. This can be a cost effective solution
to prevent building pressurization. Economizers are
available in Ultra Low Leak and standard low leak
versions.
This OSHA-- compliant, factory-- installed, safety switch
allows a service technician to locally secure power to the
rooftop.
CO2 Sensor
Connect the rooftop to an existing BAS without needing
complicated translators or adapter modules using the RTU
Open controller. This new controller speaks the 4 most
common building automation system languages (Bacnet,
Modbus, N2, and Lonworks). Use this controller when
you have an existing BAS.
Improves productivity and saves money by working with
the economizer to intake only the correct amount of
outside air for ventilation. As occupants fill your building,
the CO2 sensor detects their presence through increasing
CO2 levels, and opens the economizer appropriately.
When the occupants leave, the CO2 levels decrease, and
the sensor appropriately closes the economizer. This
intelligent control of the ventilation air, called Demand
Control Ventilation (DCV) reduces the overall load on the
rooftop, saving money.
Smoke Detectors
Power Exhaust with Barometric Relief
Superior internal building pressure control. This
field-- installed accessory may eliminate the need for
costly, external pressure control fans.
PremierLink, DDC Controller
This CCN controller regulates your rooftop’s performance
to tighter tolerances and expanded limits, as well as
facilitates zoning systems and digital accessories. It also
unites your Carrier HVAC equipment together on one,
coherent CCN network. The PremierLink can be
factory-- installed, or easily field-- installed.
RTU Open, Multi--protocol Controller
Time Guard II Control Circuit
This accessory protects your compressor by preventing
short-- cycling in the event of some other failure, prevents
the compressor from restarting for 30 seconds after
stopping. Not required with PremierLink, RTU Open, or
authorized commercial thermostats.
Filter or Fan Status Switches
Trust the experts. Smoke detectors make your application
safer and your job easier. Carrier smoke detectors
immediately shut down the rooftop unit when smoke is
detected. They are available, installed by the factory, for
supply air, return air, or both.
Use these differential pressure switches to detect a filter
clog or indoor fan motor failure. When used in
conjunction with a compatible unit controller/thermostat,
the switches will activate an alarm to warn the appropriate
personnel.
Louvered Hail Guards
Motorized 2--Position Damper
Sleek, louvered panels protect the condenser coil from
hail damage, foreign objects, and incidental contact.
The new Carrier 2-- position, motorized outdoor air damper
admits up to 100% outside air. Using reliable, gear-- driven
technology, the 2-- position damper opens to allow
ventilation air and closes when the rooftop stops, stopping
unwanted infiltration.
Convenience Outlet (powered or un--powered)
Reduce service and/or installation costs by including a
convenience outlet in your specification. Carrier will
install this service feature at our factory. Provides a
convenient, 15 amp, 115v GFCI receptacle with “Wet in
Use” cover. The “powered” option allows the installer to
power the outlet from the line side of the disconnect or
load side as required by code. The “unpowered” option is
to be powered from a separate 115/120v power source.
Manual OA Damper
Manual outdoor air dampers are an economical way to
bring in ventilation air. The dampers are available in 25%
and 50% versions.
6
FACTORY OPTIONS AND/OR ACCESSORIES (cont.)
Carrier’s Humidi--MiZer adaptive dehumidification system is
an all--inclusive factory--installed option that can be ordered
with any WeatherMaker 50KC--B04--06 rooftop unit.
This system expands the envelope of operation of
Carrier’s WeatherMaker rooftop products to provide
unprecedented flexibility to meet year-- round comfort
conditions.
The Humidi-- MiZer adaptive dehumidification system has
the industry’s only dual dehumidification mode setting.
The Humidi-- MiZer system includes two new modes of
operation.
The WeatherMaker 50KC--B04--06 rooftop coupled with
the Humidi-- MiZer system is capable of operating in
normal design cooling mode, subcooling mode, and hot
gas reheat mode. Normal design cooling mode is when the
unit will operate under its normal sequence of operation
by cycling compressors to maintain comfort conditions.
Subcooling mode will operate to satisfy part load type
conditions when the space requires combined sensible and
a higher proportion of latent load control. Hot Gas Reheat
mode will operate when outdoor temperatures diminish
and the need for latent capacity is required for sole
humidity control. Hot Gas Reheat mode will provide
neutral air for maximum dehumidification operation.
Hinged Access Panels
Allows access to unit’s major components with
specifically designed hinged access panels. Panels are:
filters, control box, fan motor and compressor.
Winter Start Kit
The winter start kit by Carrier extends the low ambient
limit of your rooftop to 25_F (-- 4_C). The kit bypasses the
low pressure switch, preventing nuisance tripping of the
low pressure switch. Other low ambient precautions may
still be prudent.
Alternate Motors and Drives
Some applications need larger horsepower motors, some
need more airflow, and some need both. Regardless of the
case, your Carrier expert has a factory installed
combination to meet your application. A wide selection of
motors and pulleys (drives) are available, factory
installed, to handle nearly any application.
Thru--the--Base Connections
Thru-- the-- base connections, available as either an
accessory or as a factory option, are necessary to ensure
proper connection and seal when routing wire and piping
through the rooftop’s basepan and curb. These couplings
eliminate roof penetration and should be considered for
gas lines, main power lines, as well as control power.
Motormaster Head Pressure Controller
Electric Heaters
The Motormaster motor controller is a low ambient, head
pressure controller kit that is designed to maintain the
unit’s condenser head pressure during periods of low
ambient cooling operation. This device should be used as
an alternative to economizer free cooling when
economizer usage is either not appropriate or desired. The
Motormaster will either cycle the outdoor fan motors or
operate them at reduced speed to maintain the unit
operation, depending on the model.
Carrier offers a full-- line of field-- installed accessory
heaters. The heaters are very easy to use, install and are
all pre-- engineered and certified.
7
50KC
Optional Humidi--MiZer Adaptive
Dehumidification System
Table 2 – AHRI COOLING RATING TABLES
LEGEND
AHRI
ASHRAE
COOLING
STAGES
NOM.
CAPACITY
(TONS)
NET
COOLING
CAPACITY
(MBH)
TOTAL
POWER
(KW)
SEER
EER
50KC --- *04
1
3
35.4
3.0
14.0
12.00
50KC --- *05
1
4
47.5
4.0
14.0
12.00
50KC --- *06
1
5
58.5
4.9
14.1
12.00
NOTES
1. Rated and certified under AHRI Standard 210/240.
2. Ratings are based on:
Cooling Standard: 80_F (27_C) db, 67_F (19_C) wb indoor air
temp and 95_F db outdoor air temp.
3. All 50KC units comply with ASHRAE 90.1 Energy Standard for
minimum SEER and EER requirements.
4. 50KC units comply with US Energy Policy Act (2005). To
evaluate code compliance requirements, refer to state and local
codes.
--- Air Conditioning, Heating and Refrigeration
Institute
--- American Society of Heating, Refrigerating
and Air Conditioning, Inc.
--- Energy Efficiency Ratio
--- Seasonal Energy Efficiency Ratio
50KC
EER
SEER
UNIT
Use of the AHRI Certified
TM Mark indicates a
manufacturer’s
participation in the
program For verification
of certification for individual
products, go to
www.ahridirectory.org.
Table 3 – MINIMUM - MAXIMUM AIRFLOWS COOLING AND ELECTRIC HEAT
COOLING
UNIT
ELECTRIC HEATERS
Minimum
Maximum
Minimum
Maximum
50KC --- *04
900
50KC --- *05
1200
1500
900
1500
2000
1200
2000
50KC --- *06
1500
2500
1500
2500
Table 4 – SOUND PERFORMANCE TABLE
OUTDOOR SOUND (dB) @60HZ
UNIT
COOLING
STAGES
A---WEIGHTED
63
125
250
500
1000
2000
4000
8000
50KC---*04
1
76
78.2
78.0
74.2
73.3
70.6
66.0
62.4
56.9
50KC---*05
1
81
90.9
84.6
79.5
77.9
76.5
71.1
66.9
62.5
50KC---*06
1
77
87.5
82.5
76.1
73.6
71.3
67.1
64.1
60.0
LEGEND
dB --- Decibel
NOTES:
1. Outdoor sound data is measure in accordance with AHRI
standard 270.
2. Measurements are expressed in terms of sound power. Do not
compare these values to sound pressure values because sound
pressure accounts for specific environmental factors which do
not match individual applications. Sound power values are
independent of the environment and therefore more accurate.
3. A--- weighted sound ratings filter out very high and very low
frequencies, to better approximate the response of an “average”
human ear. A--- weighted measurements for Carrier units are
taken in accordance with 270.
8
(COOLING)
3 - 6 TONS
50KC --- A/B04
50KC --- A/B05
50KC --- A/B06
1 / 1 / Scroll
7.1
7.1
10.4
Acutrol
Acutrol + TXV
630 / 505
54 / 117
100%
1 / 1 / Scroll
10.5
10.5
15.3
Acutrol
Acutrol + TXV
630 / 505
54 / 117
100%
1 / 1 / Scroll
16.0
14.5
26.0
Acutrol
Acutrol + TXV
630 / 505
54 / 117
100%
Material (Tube/Fin)
Coil type
Rows / FPI
Total Face Area (ft2)
Condensate Drain Conn. Size
Cu / Al
3/8 ---in RTPF
3 / 15
5.5
3/4 ---in
Cu / Al
3/8 ---in RTPF
3 / 15
5.5
3/4 ---in
Cu / Al
3/8 ---in RTPF
4 / 15
7.3
3/4 ---in
Material (Tube/Fin)
Coil type
Rows / FPI
Total Face Area (ft2)
Cu / Al
3/8 ---in RTPF
1 / 17
3.9
Cu / Al
3/8 ---in RTPF
2 / 17
3.9
Cu / Al
3/8 ---in RTPF
2 / 17
5.2
Standard
Static
1 phase
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
1/ Direct
1
600 ---1200
48
1 / Centrifugal
10 x 10
1/ Direct
1
600 ---1200
48
1 / Centrifugal
10 x 10
1/ Direct
1
600 ---1200
48
1 / Centrifugal
10 x 10
Medium
Static
1 phase
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
1/ Belt
1.2
560 ---854
48
1 / Centrifugal
10 x 10
1/ Belt
1.2
560 ---854
48
1 / Centrifugal
10 x 10
1/ Belt
1.2
770 ---1175
48
1 / Centrifugal
10 x 10
High
Static
1 phase
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
1/ Belt
1.5
770 ---1175
56
1 / Centrifugal
10 x 10
1/ Belt
1.5
770 ---1175
56
1 / Centrifugal
10 x 10
1/ Belt
1.5
1035 ---1466
56
1 / Centrifugal
10 x 10
Standard
Static
3 phase
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
1/ Direct
1
600 ---1200
48
1 / Centrifugal
10 x 10
1/ Direct
1
600 ---1200
48
1 / Centrifugal
10 x 10
1/ Direct
1
600 ---1200
48
1 / Centrifugal
11 x 10
Medium
Static
3 phase
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
1/ Belt
1.7
770 ---1175
48
1 / Centrifugal
10 x 10
1/ Belt
1.7
920 ---1303
56
1 / Centrifugal
10 x 10
1/ Belt
2.9
1035 ---1466
56
1 / Centrifugal
10 x 10
High
Static
3 phase
Motor Qty / Drive Type
Max BHP
RPM Range
Motor Frame Size
Fan Qty / Type
Fan Diameter (in)
1/ Belt
2.9
1035 ---1466
56
1 / Centrifugal
10 x 10
1/ Belt
2.9
1208 ---1639
56
1 / Centrifugal
10 x 10
1/ Belt
2.9
1303 ---1687
56
1 / Centrifugal
10 x 10
Material (Tube/Fin)
Coil type
Rows / FPI
Total Face Area (ft2)
Material (Tube/Fin)
Coil type
Rows..Fins/in.
Total Face Area (ft2)
Cu / Al
3/8 ---in RTPF
1 / 17
16.5
Cu / Al
3/8 ---in RTPF
1 / 17
16.5
Cu / Al
3/8 ---in RTPF
2 / 17
16.5
Cu / Al
3/8 ---in RTPF
2 / 17
14.6
Cu / Al
3/8 ---in RTPF
2 / 17
21.3
Cu / Al
3/8 ---in RTPF
2 / 17
18.8
1/ Direct
1/8 / 825
22
1/ Direct
1/4 / 1100
22
1/ Direct
1/4 / 1100
22
2 / 16 x 25 x 2
1 / 20 x 24 x 1
2 / 16 x 25 x 2
1 / 20 x 24 x 1
4 / 16 x 25 x 2
1 / 20 x 24 x 1
Refrigeration System
Evap. Coil
Humidi --- MiZer Coil
Evap. Fan and Motor
Cond. Coil
1 phase
3 phase
Cond. fan / motor
Filters
# Circuits / # Comp. / Type
Puronr refrig. (R---410A) 1 phase (lbs---oz)
Puronr refrig. (R---410A) 3 phase (lbs---oz)
Humidi---MiZer Puronr refrig. charge (lbs --- oz)
Metering Device (A)
Humidi---MiZer Metering Device (B)
High ---press. Trip / Reset (psig)
Low---press. Trip / Reset (psig)
Compressor Capacity Staging (%)
Qty / Motor Drive Type
Motor HP / RPM
Fan diameter (in)
RA Filter # / Size (in)
OA inlet screen # / Size (in)
9
50KC
Table 5 – PHYSICAL DATA
50KC
CURBS, WEIGHTS & DIMENSIONS
C14251
Fig. 1 -- Dimensions 50KC 04--06 (sheet 1 of 2)
10
50KC
CURBS, WEIGHTS & DIMENSIONS (cont.)
C14252
Fig. 2 -- Dimensions 50KC 04--06 (sheet 2 of 2)
11
CURBS, WEIGHTS & DIMENSIONS (cont.)
C
D
B
50KC
A
C08337
LOCATION
DIMENSION
CONDITION
A
48--- in (1219 mm)
18--- in (457 mm)
18--- in (457) mm
12--- in (305 mm)
Unit disconnect is mounted on panel
No disconnect, convenience outlet option
Recommended service clearance
Minimum clearance
B
42--- in (1067 mm)
36--- in (914 mm)
Special
Surface behind servicer is grounded (e.g., metal, masonry wall)
Surface behind servicer is electrically non--- conductive (e.g., wood, fiberglass)
Check sources of flue products within 10--- ft of unit fresh air intake hood
C
36--- in (914 mm)
18--- in (457 mm)
Side condensate drain is used
Minimum clearance
D
42--- in (1067 mm)
36--- in (914 mm)
Special
Surface behind servicer is grounded (e.g., metal, masonry wall, another unit)
Surface behind servicer is electrically non--- conductive (e.g., wood, fiberglass)
Check for adjacent units or building fresh air intakes within 10---ft (3 m) of this unit’s flue outlet
NOTE: Unit not designed to have overhead obstruction. Contact Application Engineering for guidance on any application
planning overhead obstruction or for vertical clearances.
Fig. 3 -- Service Clearance
12
24"
[610]
CRRFCURB002A01
13
Fig. 4 -- Roof Curb Details 50KC 04--06
4 9/16"
[115.5]
3.00"
[76.2]
1/4"
[7.0]
1.75"
[44.5]
14.00"
[355.6]
15.19"
[385.8]
4.96"
[126.0]
21.74"
[552.2]
SUPPLY AIR
20.41"
[518.3]
40.69"
[1033.5]
SUPPLY AIR
OPENING
21.84"
[554.7]
1/3/4"[44.5]
11.96"
[303.8]
14"
[356]
CRRFCURB001A01
5.42"
[137.7]
A
ROOF CURB
ACCESSORY #
RETURN AIR
3.00"
[76.2]
13.78"
[350.0]
16.03"
[407.2]
E
RETURN AIR
OPENING
E
32.19"
[817.6]
70.87"
[1800.2]
REV
A
REVISION RECORD
"A"
DATE
04/22/13
BY
MMC
ROOFING MATERIAL
(FIELD SUPPLIED)
CANT STRIP
(FIELD SUPPLIED)
ROOFING FELT
(FIELD SUPPLIED)
COUNTER FLASHING
(FIELD SUPPLIED)
TYPICAL (4) SIDES
E-E
CHK'D
-
"A"
APP'D
-
8 9/16"[217.5] WIDE
INSULATED DECK PANEL
SUPPLY AIR
ECN NO.
1067898
-
SURFACE FINISH
WEIGHT:
PURCH
MFG/PURCH
50KC
-
T-005, Y-002
1-3/4"
[44.5]
RETURN AIR
1' 4-13/16"
[427] INSIDE
3/4" [19] NPT
POWER WIRING
FITTING
- -
-
ANG
MODEL (INTERNAL USE ONLY)
CHECKER
-
-
1-3/4"
[44.4]
SEE NOTE #2
1/2" [12.7] NPT
ACCESSORY CONVENIENCE
OUTLET WIRING CONNECTOR
CURB ASY, ROOF
-
N/A
SCALE
B
REV
(004-007)
MMC
DISTRIBUTION
SHEET 5 OF 5
48TC400427
DRAWING NUMBER
NEXT DRAWING
D
SIZE
TITLE
THIS DOCUMENT AND THE INFORMATION CONTAINED THEREIN
IS PROPRIETARY TO CARRIER CORPORATION AND SHALL NOT
BE USED OR DISCLOSED TO OTHERS, IN WHOLE OR IN PART,
WITHOUT THE WRITTEN AUTHORIZATION OF CARRIER CORPORATION.
5' 7-3/8"
[1711.3]
2-3/8"
[61]
1/2" [12.7] NPT
CONTROL WIRING
FITTING
MANUFACTURING
1041738
06/17/11 -
DRAFTER
MMC
-
-
3 DEC
AUTHORIZATION NUMBER
-
2 DEC
ENGINEERING
-
1 DEC
UNLESS OTHERWISE SPECIFIED
DIMENSIONS ARE IN INCHES
TOLERANCES ON:
PRODUCTION
CERTIFIED DRAWING
ENGINEERING REQUIREMENTS
-
MATERIAL
THIRD ANGLE
PROJECTION
DRAWING RELEASE LEVEL:
SEE VIEW "B"
3'-1 3/16"
[944.6]
1/2" [12.7] NPT
3/4" [19] NPT
GAS FITTING
11 3/4"[298.5] WIDE
INSULATED DECK PANELS
THRU THE BOTTOM
THRU THE CURB
GAS CONNECTION TYPE
GAS SERVICE PLATE
THRU THE CURB
DRILL HOLE
2" [50.8] @
ASSEMBLY (IF
REQUIRED)
(SEE NOTE #8)
1.00"
[25.4]
1-3/4"
[44.4]
SECTION
SCALE 0.250
1-3/4"
[44.5]
CRBTMPWR003A01
CRBTMPWR001A01
CONNECTOR PKG. ACC.
NAIL (FIELD SUPPLIED)
RIGID INSULATION
(FIELD SUPPLIED)
7/16"
[11]
UNIT
OVERALL DIM. 5'-7 3/8" WAS 5'-7 7/8; 18GA
MATERIAL WA 16 GA.; NAIL FIELD SUPPLIED WAS
WITH CURB
DUCT
(FIELD SUPPLIED)
GASKET
(SUPPLIED WITH CURB)
CORNER DETAIL
VIEW "B"
NOTES:
1. ROOFCURB ACCESSORY IS SHIPPED DISASSEMBLED.
2. INSULATED PANELS: 25.4 [1"] THK. POLYURETHANE FOAM, 44.5 [1-3/4] # DENSITY.
3. DIMENSIONS IN [ ] ARE IN MILLIMETERS.
4. ROOFCURB: 18 GAGE STEEL.
5. ATTACH DUCTWORK TO CURB. (FLANGES OF DUCT REST ON CURB).
6. SERVICE CLEARANCE 4 FEET ON EACH SIDE.
7.
DIRECTION OF AIR FLOW.
8. CONNECTOR PACKAGE CRBTMPWR001A01 IS FOR THRU-THE-CURB GAS TYPE
PACKAGE CRBTMPWR003A01 IS FOR THRU-THE-BOTTOM TYPE GAS CONNECTIONS.
CURBS, WEIGHTS & DIMENSIONS (cont.)
C13310
OPTION / ACCESSORY WEIGHTS
OPTION / ACCESSORY WEIGHTS
04
OPTION / ACCESSORY
06
lb
kg
lb
kg
lb
kg
Humidi--- MiZer1
50
23
50
23
55
25
Power Exhaust --- vertical
45
20
45
20
45
20
Power Exhaust --- horizontal
30
14
30
14
30
14
EconoMi$er (IV, X or 2)
35
16
35
16
35
16
Two Position damper
39
18
39
18
39
18
Manual Dampers
12
5
12
5
12
5
Hail Guard (louvered)
13
6
13
6
17
8
Cu/Cu Condenser
50KC
05
Coil2
37
17
74
34
95
43
Cu/Cu Condenser and Evaporator Coils2
75
34
112
51
165
75
Roof Curb (14--- in. curb)
115
52
115
52
115
52
Roof Curb (24--- in. curb)
197
89
197
89
197
89
CO2 sensor
2
1
2
1
2
1
Electric Heater
10
5
12
5
12
5
Single Point Kit
10
5
10
5
10
5
Optional Indoor Motor/Drive
6
3
6
3
17
8
Motor Master Controller
9
4
9
4
9
4
Return Smoke Detector
7
3
7
3
7
3
Supply Smoke Detector
7
3
7
3
7
3
Non--- Fused Disconnect
5
2
5
2
5
2
Powered Convenience outlet
36
16
36
16
36
16
Non--- Powered Convenience outlet
4
2
4
2
4
2
Enthalpy Sensor
2
1
2
1
2
1
Differential Enthalpy Sensor
3
1
3
1
3
1
NOTE: Where multiple variations are available, the heaviest combination is listed.
--- Not Available
1 For Humidi--- MiZer add MotorMaster Controller.
2 Where available.
14
APPLICATION DATA
Min operating ambient temp (cooling):
Sizing a rooftop
In mechanical cooling mode, your Carrier rooftop can
safely operate down to an outdoor ambient temperature of
40_F (4_C) and 25_F (-- 4_C), with an accessory winter
start kit. It is possible to provide cooling at lower outdoor
ambient temperatures by using less outside air,
economizers, and/or accessory low ambient kits.
Bigger isn’t necessarily better. While an air conditioner
needs to have enough capacity to meet the load, it doesn’t
need excess capacity. In fact, having excess capacity
typically results in very poor part load performance and
humidity control.
The maximum operating ambient temperature for cooling
mode is 115_F (46_C). While cooling operation above
115_F (46_C) may be possible, it could cause either a
reduction in performance, reliability, or a protective action
by the unit’s internal safety devices.
Min and max airflow (cooling mode):
Using higher design temperatures than ASHRAE
recommends for your location, adding “safety factors” to
the calculated load, and rounding up to the next largest
unit, are all signs of oversizing air conditioners.
Oversizing can cause short-- cycling, and short cycling
leads to poor humidity control, reduced efficiency, higher
utility bills, drastic indoor temperature swings, excessive
noise, and increased wear and tear on the air conditioner.
To maintain safe and reliable operation of your rooftop,
operate within the cooling airflow limits. Operating above
the max may cause blow-- off, undesired airflow noise, or
airflow related problems with the rooftop unit. Operating
below the min may cause problems with coil freeze-- up.
Rather than oversizing an air conditioner, wise contractors
and engineers “right-- size” or even slightly undersize air
conditioners. Correctly sizing an air conditioner controls
humidity better; promotes efficiency; reduces utility bills;
extends equipment life, and maintains even, comfortable
temperatures.
Please contact your local Carrier
representative for assistance.
Airflow:
Low ambient applications
All units are draw-- through in cooling mode.
When equipped with a Carrier economizer, your rooftop
unit can cool your space by bringing in fresh, cool outside
air. In fact, when so equipped, accessory low ambient kit
may not be necessary. In low ambient conditions, unless
the outdoor air is excessively humid or contaminated,
economizer-- based “free cooling” is the preferred less
costly and energy conscious method.
Outdoor air application strategies:
Economizers reduce operating expenses and compressor
run time by providing a free source of cooling and a
means of ventilation to match application changing needs.
In fact, they should be considered for most applications.
Also, consider the various economizer control methods
and their benefits, as well as sensors required to
accomplish your application goals. Please contact your
local Carrier representative for assistance.
Motor limits, Brake horsepower (BHP):
Due to Carrier’s internal unit design, air path, and
specially designed motors, the full horsepower (maximum
continuous BHP) band, as listed in the Physical Data
table, can be used with the utmost confidence. There is no
need for extra safety factors, as Carrier’s motors are
designed and rigorously tested to use the entire, listed
BHP range without either nuisance tripping or premature
motor failure.
In low ambient applications where outside air might not
be desired (such as contaminated or excessively humid
outdoor environments), your Carrier rooftop can operate
at ambient temperatures down to - 20_F (-- 29_C) using the
recommended accessory Motormaster low ambient
controller.
Winter start
Carrier’s winter start kit extends the low ambient limit of
your rooftop to 25_F (-- 4_C). The kit bypasses the low
pressure switch, preventing nuisance tripping of the low
pressure switch. Other low ambient precautions may still
be prudent.
15
50KC
Max operating ambient temp (cooling):
Table 6 – COOLING CAPACITIES
1-- STAGE COOLING
3 TONS
Ambient Temperature
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
75
28.7
24.8
31.8
23.3
36.5
19.4
40.3
14.9
-----
85
EA (dB)
80
28.7
28.7
31.8
27.9
36.5
24.0
40.3
19.5
43.1
15.7
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
31.8
27.5
33.8
25.7
37.8
20.7
41.5
15.4
-----
31.8
31.8
33.8
30.9
37.8
25.9
41.5
20.6
44.2
16.4
36.2
36.2
36.1
36.1
37.8
31.1
41.5
25.8
44.2
22.1
28.3
24.4
28.9
23.2
35.5
19.7
39.3
14.5
-----
28.3
28.3
28.9
28.3
35.5
24.9
39.3
19.7
42.0
15.5
32.1
32.1
33.4
33.4
35.5
30.1
39.3
24.9
42.0
21.1
24.9
21.5
25.0
20.4
31.7
18.1
36.8
13.5
-----
24.9
24.9
25.0
25.0
31.7
23.3
36.8
18.7
39.6
14.5
28.4
28.4
29.6
29.6
31.7
28.6
36.8
23.9
39.6
20.0
21.9
18.8
21.9
17.8
25.8
15.8
33.6
12.2
-----
21.9
21.9
21.9
21.9
25.8
21.0
33.6
17.5
36.9
13.5
24.9
24.9
26.0
26.0
26.2
26.2
33.6
22.7
36.9
18.9
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
34.1
29.5
34.9
27.5
38.8
21.9
42.4
15.8
-----
34.1
34.1
34.9
33.3
38.8
27.7
42.4
21.6
44.9
16.8
38.8
38.8
39.1
39.1
38.8
33.5
42.4
27.4
44.9
23.1
31.3
27.0
32.9
25.2
36.4
20.9
40.1
14.9
-----
31.3
31.3
32.9
30.3
36.4
26.7
40.1
20.7
42.7
15.9
35.6
35.6
35.5
35.5
36.4
32.6
40.1
26.5
42.7
22.1
27.5
23.7
27.5
22.5
33.3
19.6
37.7
13.9
-----
27.5
27.5
27.5
27.5
33.3
25.5
37.7
19.8
40.3
15.0
31.2
31.2
32.6
32.6
33.3
31.4
37.7
25.6
40.3
21.1
24.1
20.7
24.1
19.6
27.7
17.4
34.5
12.7
-----
24.1
24.1
24.1
24.1
27.7
23.3
34.5
18.7
37.7
14.0
27.4
27.4
28.6
28.6
29.2
29.2
34.5
24.6
37.7
20.1
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
35.6
30.8
36.3
28.2
39.5
22.9
43.0
16.2
-----
35.6
35.6
36.3
34.1
39.5
29.4
43.0
22.5
45.5
17.3
40.4
40.4
39.9
39.9
39.5
35.8
43.0
28.9
45.5
24.0
33.6
29.0
33.7
27.6
37.2
22.0
40.7
15.3
-----
33.6
33.6
33.7
33.7
37.2
28.5
40.7
21.7
43.3
16.4
38.1
38.1
39.7
39.7
37.2
34.9
40.7
28.1
43.3
23.1
29.8
25.7
29.9
24.4
34.0
20.8
38.3
14.3
-----
29.8
29.8
29.9
29.9
34.0
27.3
38.3
20.8
40.8
15.4
33.9
33.9
35.3
35.3
34.0
33.9
38.3
27.2
40.8
22.1
26.2
22.5
26.2
21.4
29.3
18.9
35.2
13.2
-----
26.2
26.2
26.2
26.2
29.3
25.4
35.2
19.7
38.1
14.5
29.8
29.8
31.0
31.0
32.0
32.0
35.2
26.3
38.1
21.1
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
36.8
31.9
36.9
30.2
40.1
23.9
43.6
16.5
-----
36.8
36.8
36.9
36.9
40.1
31.0
43.6
23.4
46.0
17.6
41.8
41.8
43.5
43.5
40.1
38.0
43.6
30.2
46.0
24.8
34.8
30.1
35.4
27.4
37.7
23.0
41.3
15.6
-----
34.8
34.8
35.4
33.1
37.7
30.1
41.3
22.5
43.7
16.7
39.5
39.5
38.8
38.8
37.7
37.2
41.3
29.5
43.7
23.9
32.0
27.7
32.1
26.2
34.7
21.9
38.7
14.7
-----
32.0
32.0
32.1
32.1
34.7
29.0
38.7
21.7
41.2
15.8
36.4
36.4
37.9
37.9
36.2
36.2
38.7
28.6
41.2
22.9
28.1
24.2
28.1
22.9
30.7
20.3
35.7
13.6
-----
28.1
28.1
28.1
28.1
30.7
27.5
35.7
20.8
38.5
14.8
31.9
31.9
33.3
33.3
34.6
34.6
35.7
27.9
38.5
22.0
50KC*A04
58
EAT (wb)
900 Cfm
62
67
72
76
EAT (wb)
1050 Cfm
62
67
72
76
58
EAT (wb)
1200 Cfm
62
67
72
76
58
EAT (wb)
1350 Cfm
62
67
72
76
58
EAT (wb)
62
1500 Cfm
50KC
58
67
72
76
LEGEND:
--Cfm
EAT(db)
EAT(wb)
SHC
TC
-------------
85
32.6
32.6
32.4
32.4
36.5
28.5
40.3
24.1
43.1
20.6
75
25.1
21.7
26.0
20.6
34.2
18.4
38.2
13.9
-----
95
EA (dB)
80
25.1
25.1
26.0
25.0
34.2
22.9
38.2
18.5
41.0
14.8
85
28.6
28.6
29.5
29.5
34.2
27.4
38.2
23.1
41.0
19.8
Do not operate
Cubic feet per minute (supply air)
Entering air temperature (dry bulb)
Entering air temperature (wet bulb)
Sensible heat capacity
Total capacity
16
75
22.2
19.1
22.3
18.1
29.2
16.2
35.6
12.9
-----
105
EA (dB)
80
22.2
22.2
22.3
22.3
29.2
20.8
35.6
17.4
38.6
13.9
85
25.3
25.3
26.4
26.4
29.2
25.3
35.6
22.0
38.6
18.8
75
19.5
16.7
19.5
15.8
23.7
14.1
32.4
11.6
-----
115
EA (dB)
80
19.5
19.5
19.5
19.5
23.7
18.6
32.4
16.2
35.9
12.8
85
22.2
22.2
23.2
23.2
23.7
23.1
32.4
20.7
35.9
17.6
Table 7 – COOLING CAPACITIES
1-- STAGE COOLING
3 TONS
50KC*B04 (3 TONS) --- UNIT WITH HUMIDI---MIZER SYSTEM IN SUBCOOLING MODE
AIR ENTERING EVAPORATOR --- SCFM
900
1200
1500
Air Entering Evaporator --- --- Ewb (F)
72
67
62
72
67
62
72
67
62
75
TC
SHC
kW
30.9
15.1
2.51
32.0
20.0
2.49
31.9
26.3
2.42
30.7
25.1
2.82
33.5
20.4
2.74
34.3
15.4
2.68
34.8
14.0
3.09
31.8
18.2
3.01
27.6
21.9
2.88
85
TC
SHC
kW
32.8
11.0
3.36
28.4
14.6
3.23
23.4
17.9
3.06
18.7
13.4
3.62
23.8
10.3
3.41
29.3
7.1
3.24
24.5
2.6
3.79
18.8
5.6
3.58
13.6
8.6
3.39
95
TC
SHC
kW
31.3
15.3
2.53
32.0
20.0
2.49
31.9
26.3
2.41
30.7
25.1
2.82
33.5
20.4
2.74
34.3
15.4
2.68
34.8
14.0
3.09
31.8
18.2
3.01
27.6
21.9
2.88
105
TC
SHC
kW
32.8
11.0
3.36
28.4
14.6
3.23
23.4
17.9
3.06
18.7
13.4
3.62
23.8
10.3
3.41
29.3
7.1
3.24
24.5
2.6
3.79
18.8
5.6
3.58
13.6
8.6
3.39
115
TC
SHC
kW
31.3
15.3
2.53
32.0
20.0
2.49
31.9
26.3
2.41
30.7
25.1
2.82
33.5
20.4
2.74
34.3
15.4
2.68
34.8
14.0
3.09
31.8
18.2
3.01
27.6
21.9
2.88
50KC*B04 (3 TONS) --- UNIT WITH HUMIDI---MIZER SYSTEM IN HOT GAS REHEAT MODE
AIR ENTERING EVAPORATOR --- Ewb (F)
75 Dry Bulb
62.5 Wet Bulb
(50% Relative)
TEMP (F)
AIR ENT
CONDENSER
(Edb)
75 Dry Bulb
64 Wet Bulb
(56% Relative)
75 Dry Bulb
65.3 Wet Bulb
(60% Relative)
Air Entering Evaporator --- Cfm
900
1200
1500
900
1200
1500
900
1200
1500
80
TC
SHC
kW
12.26
1.76
1.92
13.13
3.87
1.93
13.65
6.09
1.94
13.53
0.75
1.96
14.48
2.48
1.98
15.00
4.33
2.00
14.73
--- 0.06
2.00
15.63
1.30
2.01
16.20
2.81
2.02
75
TC
SHC
kW
14.64
3.87
1.87
15.64
6.09
1.88
16.30
8.38
1.88
15.84
2.88
1.89
16.73
4.59
1.90
17.32
6.29
1.91
16.80
2.03
1.91
17.38
3.14
1.92
17.91
4.39
1.93
70
TC
SHC
kW
16.72
5.89
1.78
17.62
7.85
1.80
18.01
9.40
1.82
17.42
4.65
1.81
18.17
6.08
1.83
18.62
7.35
1.84
18.02
3.71
1.82
18.69
5.09
1.82
18.87
5.59
1.86
60
TC
SHC
kW
17.43
7.75
1.66
18.50
10.06
1.62
18.28
9.51
1.70
18.09
7.08
1.67
19.03
8.34
1.69
19.41
9.60
1.68
18.32
6.29
1.69
18.29
6.94
1.70
19.33
7.88
1.71
50
TC
SHC
kW
17.82
6.40
1.98
18.59
7.99
2.03
19.72
10.05
1.94
18.31
4.79
2.01
19.73
6.71
1.94
20.26
7.97
1.97
18.76
3.40
2.03
20.21
5.11
1.96
20.73
6.16
1.99
40
TC
SHC
kW
17.70
6.30
2.07
19.38
8.74
1.95
19.85
10.17
1.99
19.10
5.54
1.93
20.30
7.26
1.91
20.34
8.05
2.02
19.53
4.13
1.96
20.76
5.64
1.94
21.26
6.67
1.97
LEGEND
Edb --Ewb --kW --Idb --Iwb --SHC --TC
---
Entering Dry--- Bulb
Entering Wet--- Bulb
Compressor Motor Power Input
Leaving Dry--- Bulb
Leaving Wet--- Bulb
Sensible Heat Capacity (1000 Btuh) Gross
Total Capacity (1000 Btuh) Gross
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
sensible capacity (Btuh)
1.10 x cfm
tlwb = Wet--- bulb temperature corresponding to enthalpy of air
leaving evaporator coil (hlwb)
tldb = tedb –
total capacity (Btuh)
4.5 x cfm
Where: hewb = Enthalpy of air entering evaporator coil
hlwb = hewb –
17
50KC
TEMP (F)
AIR ENT
CONDENSER
(Edb)
Table 8 – COOLING CAPACITIES
1-- STAGE COOLING
4 TONS
Ambient Temperature
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
75
41.5
36.1
44.9
32.6
49.7
26.5
53.4
19.8
-----
85
EA (dB)
80
41.5
41.5
44.9
38.5
49.7
32.4
53.4
25.7
55.3
20.1
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
44.4
38.6
46.6
35.2
51.2
28.0
54.4
20.2
-----
44.4
44.4
46.6
41.9
51.2
34.6
54.4
26.7
55.9
20.8
50.2
50.2
48.6
48.6
51.2
41.2
54.4
33.2
55.9
28.5
41.6
36.1
43.1
33.5
48.5
26.9
52.3
19.4
-----
41.6
41.6
43.1
40.2
48.5
33.6
52.3
25.9
53.9
20.0
47.0
47.0
46.9
46.9
48.5
40.3
52.3
32.5
53.9
27.6
38.7
33.6
39.4
31.7
44.7
25.4
49.9
18.5
-----
38.7
38.7
39.4
38.3
44.7
32.2
49.9
25.2
52.1
19.2
43.8
43.8
44.9
44.9
44.7
38.9
49.9
31.9
52.1
26.5
35.7
31.0
35.8
29.4
40.7
23.8
46.2
17.1
-----
35.7
35.7
35.8
35.8
40.7
30.6
46.2
23.8
49.7
18.1
40.5
40.5
42.1
42.1
40.7
37.3
46.2
30.6
49.7
25.3
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
46.6
40.5
47.9
37.5
51.5
30.9
55.0
20.4
-----
46.6
46.6
47.9
44.9
51.5
38.3
55.0
27.5
56.3
21.1
52.7
52.7
52.3
52.3
51.5
45.7
55.0
34.6
56.3
29.4
43.8
38.1
44.6
35.9
48.7
30.0
52.9
19.6
-----
43.8
43.8
44.6
43.3
48.7
37.5
52.9
26.8
54.3
20.2
49.6
49.6
50.7
50.7
48.7
45.0
52.9
33.9
54.3
28.3
40.8
35.4
40.9
33.7
44.9
28.5
50.9
18.9
-----
40.8
40.8
40.9
40.9
44.9
36.1
50.9
26.3
52.3
19.4
46.2
46.2
48.1
48.1
44.9
43.7
50.9
33.8
52.3
27.3
37.7
32.7
37.8
31.1
40.7
26.9
47.3
17.6
-----
37.7
37.7
37.8
37.8
40.7
34.5
47.3
25.2
50.3
18.6
42.7
42.7
44.4
44.4
42.0
42.0
47.3
32.7
50.3
26.5
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
48.4
42.1
49.1
39.5
53.0
30.2
55.5
20.6
-----
48.4
48.4
49.1
47.6
53.0
38.2
55.5
28.2
56.6
21.2
54.7
54.7
55.6
55.6
53.0
46.1
55.5
35.7
56.6
29.9
45.7
39.7
45.9
37.8
50.6
29.5
53.4
19.8
-----
45.7
45.7
45.9
45.8
50.6
37.7
53.4
27.5
54.6
20.4
51.7
51.7
53.7
53.7
50.6
45.8
53.4
35.2
54.6
28.9
42.7
37.0
42.7
35.2
47.0
28.5
51.5
19.2
-----
42.7
42.7
42.7
42.7
47.0
36.8
51.5
27.3
52.5
19.6
48.3
48.3
50.2
50.2
47.0
45.2
51.5
35.4
52.5
28.0
39.4
34.2
39.5
32.5
42.7
26.9
48.1
18.1
-----
39.4
39.4
39.5
39.5
42.7
35.3
48.1
26.4
50.8
18.9
44.6
44.6
46.4
46.4
43.7
43.7
48.1
34.6
50.8
27.4
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
49.9
43.4
50.1
41.1
53.5
31.2
55.8
20.7
-----
49.9
49.9
50.1
49.7
53.5
39.7
55.8
28.7
56.9
21.3
56.4
56.4
58.3
58.3
53.5
48.3
55.8
36.7
56.9
30.4
47.4
41.2
47.5
39.2
51.3
30.6
53.7
19.9
-----
47.4
47.4
47.5
47.5
51.3
39.4
53.7
28.1
54.8
20.5
53.6
53.6
55.7
55.7
51.3
48.1
53.7
36.2
54.8
29.4
44.3
38.4
44.3
36.5
47.8
29.9
51.9
19.4
-----
44.3
44.3
44.3
44.3
47.8
39.0
51.9
28.0
52.7
19.7
50.1
50.1
52.1
52.1
48.1
48.1
51.9
36.7
52.7
28.6
40.9
35.5
41.0
33.8
43.5
28.3
48.8
18.5
-----
40.9
40.9
41.0
41.0
43.5
37.5
48.8
27.4
51.1
19.1
46.3
46.3
48.2
48.2
46.6
46.6
48.8
36.4
51.1
28.2
50KC*A05
58
EAT (wb)
1200 Cfm
62
67
72
76
EAT (wb)
1400 Cfm
62
67
72
76
58
EAT (wb)
1600 Cfm
62
67
72
76
58
EAT (wb)
1800 Cfm
62
67
72
76
58
EAT (wb)
62
2000 Cfm
50KC
58
67
72
76
LEGEND:
--Cfm
EAT(db)
EAT(wb)
SHC
TC
-------------
85
47.0
47.0
44.9
44.3
49.7
38.2
53.4
31.6
55.3
26.7
75
38.9
33.8
41.4
30.9
46.8
25.3
51.3
19.0
-----
95
EA (dB)
80
38.9
38.9
41.4
36.8
46.8
31.1
51.3
24.8
53.3
19.4
85
44.0
44.0
42.6
42.6
46.8
37.0
51.3
30.7
53.3
26.0
Do not operate
Cubic feet per minute (supply air)
Entering air temperature (dry bulb)
Entering air temperature (wet bulb)
Sensible heat capacity
Total capacity
18
75
36.2
31.4
37.8
29.2
43.1
23.7
48.5
17.8
-----
105
EA (dB)
80
36.2
36.2
37.8
35.0
43.1
29.6
48.5
23.7
51.6
18.7
85
41.0
41.0
40.8
40.8
43.1
35.5
48.5
29.6
51.6
25.3
75
33.4
28.9
34.0
27.3
39.2
22.1
44.7
16.4
-----
115
EA (dB)
80
33.4
33.4
34.0
33.1
39.2
27.9
44.7
22.3
48.6
17.5
85
37.8
37.8
38.8
38.8
39.2
33.8
44.7
28.1
48.6
23.8
Table 9 – COOLING CAPACITIES
1-- STAGE COOLING
4 TONS
50KC*B05 (4 TONS) --- UNIT WITH HUMIDI---MIZER SYSTEM IN SUBCOOLING MODE
AIR ENTERING EVAPORATOR --- SCFM
1200
1600
2000
Air Entering Evaporator --- --- Ewb (F)
72
67
62
72
67
62
72
67
62
75
TC
SHC
kW
35.4
16.4
3.06
37.1
21.6
3.07
41.2
31.5
3.06
40.7
31.3
3.44
43.2
24.3
3.43
41.0
16.9
3.41
44.3
16.0
3.84
42.2
22.4
3.82
35.7
26.9
3.72
85
TC
SHC
kW
43.4
13.0
4.28
36.8
17.6
4.20
29.6
21.5
4.05
22.8
15.5
4.77
30.1
11.7
4.57
37.9
7.8
4.42
31.0
2.0
5.17
23.1
5.7
4.99
15.6
9.2
4.81
95
TC
SHC
kW
34.5
16.3
3.25
34.9
20.9
3.25
35.6
27.7
3.24
42.8
36.7
3.63
40.4
23.8
3.63
37.8
16.2
3.61
42.4
16.4
4.04
43.8
26.1
4.02
39.3
34.3
4.00
105
TC
SHC
kW
44.0
15.1
4.49
40.3
22.9
4.47
33.3
28.9
4.32
26.2
22.6
4.99
33.7
17.2
4.87
41.0
11.1
4.69
34.2
5.0
5.50
26.1
10.6
5.28
18.6
15.8
5.09
115
TC
SHC
kW
33.2
15.6
3.53
33.5
20.3
3.51
38.3
31.2
3.46
39.8
34.7
3.89
37.3
22.3
3.89
35.4
15.3
3.88
40.3
15.9
4.31
42.0
26.2
4.30
41.3
39.6
4.26
50KC*B05 (4 TONS) --- UNIT WITH HUMIDI---MIZER SYSTEM IN HOT GAS REHEAT MODE
AIR ENTERING EVAPORATOR --- Ewb (F)
75 Dry Bulb
62.5 Wet Bulb
(50% Relative)
TEMP (F)
AIR ENT
CONDENSER
(Edb)
75 Dry Bulb
64 Wet Bulb
(56% Relative)
75 Dry Bulb
65.3 Wet Bulb
(60% Relative)
Air Entering Evaporator --- Cfm
1200
1600
2000
1200
1600
2000
1200
1600
2000
80
TC
SHC
kW
15.33
0.84
2.41
16.26
3.06
2.42
16.40
4.94
2.42
17.32
--- 0.09
2.43
18.21
1.62
2.43
18.24
2.93
2.43
18.97
--- 0.90
2.44
19.72
0.33
2.44
19.66
1.18
2.44
75
TC
SHC
kW
19.17
4.46
2.76
20.36
6.89
2.75
20.57
8.60
2.75
20.97
3.50
2.76
21.94
5.31
2.75
21.95
6.45
2.74
22.30
2.61
2.76
23.03
3.93
2.76
22.88
4.64
2.75
70
TC
SHC
kW
22.63
7.91
2.80
23.67
10.13
2.78
23.55
11.21
2.77
23.97
6.83
2.80
24.55
8.40
2.77
24.19
9.04
2.76
24.87
5.88
2.81
25.09
7.04
2.80
24.52
7.39
2.78
60
TC
SHC
kW
27.32
13.66
2.85
28.34
15.45
2.86
21.46
13.04
2.86
27.68
11.75
2.89
16.17
4.46
2.80
25.05
12.58
2.91
28.38
11.21
2.88
18.51
10.82
2.84
20.56
10.87
2.88
50
TC
SHC
kW
11.00
7.10
2.95
11.31
9.20
2.94
12.76
11.20
2.93
14.48
5.13
2.94
13.83
6.46
2.92
13.72
9.10
2.92
15.32
4.21
2.94
15.18
4.49
2.93
17.14
6.19
2.92
40
TC
SHC
kW
9.73
8.46
3.04
9.83
9.50
3.04
9.75
9.20
3.03
12.40
7.57
3.03
12.60
8.47
3.01
12.20
9.50
3.01
15.23
7.64
3.03
15.45
8.14
3.02
15.13
8.80
3.02
LEGEND
Edb --Ewb --kW --Idb --Iwb --SHC --TC
---
Entering Dry--- Bulb
Entering Wet--- Bulb
Compressor Motor Power Input
Leaving Dry--- Bulb
Leaving Wet--- Bulb
Sensible Heat Capacity (1000 Btuh) Gross
Total Capacity (1000 Btuh) Gross
NOTES:
1. Direct interpolation is permissible. Do not extrapolate.
2. The following formulas may be used:
sensible capacity (Btuh)
1.10 x cfm
tlwb = Wet--- bulb temperature corresponding to enthalpy of air
leaving evaporator coil (hlwb)
tldb = tedb –
total capacity (Btuh)
4.5 x cfm
Where: hewb = Enthalpy of air entering evaporator coil
hlwb = hewb –
19
50KC
TEMP (F)
AIR ENT
CONDENSER
(Edb)
Table 10 – COOLING CAPACITIES
1-- STAGE COOLING
5 TONS
Ambient Temperature
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
75
53.0
45.9
56.0
41.4
62.4
33.5
67.5
25.0
-----
85
EA (dB)
80
53.0
53.0
56.0
49.5
62.4
41.4
67.5
32.4
71.1
25.6
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
56.7
49.1
58.3
45.3
64.0
35.5
68.9
25.5
-----
56.7
56.7
58.3
54.6
64.0
44.5
68.9
33.9
72.4
26.4
64.3
64.3
63.9
63.9
64.0
53.6
68.9
42.2
72.4
34.9
53.5
46.2
54.4
43.2
60.6
33.9
65.9
24.0
-----
53.5
53.5
54.4
52.5
60.6
43.1
65.9
32.7
69.7
24.9
60.8
60.8
61.8
61.8
60.6
52.4
65.9
41.4
69.7
33.2
50.2
43.3
51.8
39.6
56.6
32.0
62.2
22.2
-----
50.2
50.2
51.8
48.0
56.6
41.3
62.2
31.1
66.1
23.2
57.2
57.2
56.4
56.4
56.6
50.6
62.2
40.1
66.1
31.7
47.4
41.0
47.5
38.9
52.3
30.6
56.6
20.2
-----
47.4
47.4
47.5
47.5
52.3
39.7
56.6
28.7
59.5
21.0
53.9
53.9
56.1
56.1
52.3
48.8
56.6
37.1
59.5
29.5
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
59.8
51.8
60.2
48.8
65.3
37.3
70.2
26.1
-----
59.8
59.8
60.2
59.3
65.3
47.4
70.2
35.4
73.4
27.0
67.8
67.8
69.7
69.7
65.3
57.4
70.2
44.8
73.4
36.5
56.5
48.9
57.0
46.1
61.8
35.9
67.0
24.5
-----
56.5
56.5
57.0
56.0
61.8
46.2
67.0
34.1
70.6
25.5
64.2
64.2
66.0
66.0
61.8
56.6
67.0
43.7
70.6
35.0
53.1
45.8
53.2
43.4
56.7
36.4
63.2
22.8
-----
53.1
53.1
53.2
53.2
56.7
47.0
63.2
32.7
67.1
23.8
60.4
60.4
62.9
62.9
57.6
57.6
63.2
42.6
67.1
33.3
50.0
43.3
50.1
41.1
52.4
34.9
57.3
20.6
-----
50.0
50.0
50.1
50.1
52.4
45.3
57.3
30.1
60.3
21.5
56.8
56.8
59.2
59.2
55.7
55.7
57.3
39.5
60.3
31.0
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
62.2
54.0
63.4
50.2
66.3
38.9
71.1
26.5
-----
62.2
62.2
63.4
60.5
66.3
50.0
71.1
36.8
74.0
27.3
70.5
70.5
70.9
70.9
66.3
61.0
71.1
47.1
74.0
37.6
59.0
51.1
59.1
48.5
62.4
39.2
68.0
25.0
-----
59.0
59.0
59.1
59.1
62.4
50.8
68.0
35.5
71.4
26.0
66.9
66.9
69.7
69.7
62.4
62.3
68.0
46.1
71.4
36.5
55.5
47.9
55.5
45.4
58.9
36.2
64.1
23.3
-----
55.5
55.5
55.5
55.5
58.9
47.9
64.1
34.1
67.8
24.3
63.0
63.0
65.6
65.6
59.6
59.6
64.1
45.0
67.8
34.9
52.1
45.0
52.1
42.7
54.1
34.0
57.9
21.0
-----
52.1
52.1
52.1
52.1
54.1
45.2
57.9
31.3
61.0
21.8
59.1
59.1
61.5
61.5
56.3
56.3
57.9
41.7
61.0
32.2
TC
SHC
TC
SHC
TC
SHC
TC
SHC
TC
SHC
64.0
55.5
64.0
52.7
67.3
40.6
71.7
26.7
-----
64.0
64.0
64.0
64.0
67.3
52.5
71.7
37.9
74.5
27.4
72.4
72.4
75.3
75.3
67.3
64.5
71.7
49.1
74.5
38.5
60.9
52.8
61.0
50.1
63.7
39.6
68.8
25.4
-----
60.9
60.9
61.0
61.0
63.7
52.0
68.8
37.0
72.1
26.3
69.1
69.1
71.9
71.9
64.5
64.5
68.8
48.5
72.1
37.7
57.4
49.6
57.4
47.0
59.5
38.7
64.9
23.7
-----
57.4
57.4
57.4
57.4
59.5
51.5
64.9
35.5
68.4
24.7
65.2
65.2
67.9
67.9
64.2
64.2
64.9
47.3
68.4
36.3
53.3
46.1
53.4
43.8
54.6
35.4
58.4
21.2
-----
53.3
53.3
53.4
53.4
54.6
47.3
58.4
32.4
61.6
22.1
60.5
60.5
63.0
63.0
59.3
59.3
58.4
43.6
61.6
33.3
50KC*A06
58
EAT (wb)
1500 Cfm
62
67
72
76
EAT (wb)
1750 Cfm
62
67
72
76
58
EAT (wb)
2000 Cfm
62
67
72
76
58
EAT (wb)
2250 Cfm
62
67
72
76
58
EAT (wb)
62
2500 Cfm
50KC
58
67
72
76
LEGEND:
--Cfm
EAT(db)
EAT(wb)
SHC
TC
-------------
85
60.2
60.2
57.5
57.5
62.4
49.4
67.5
39.8
71.1
32.7
75
50.0
43.1
52.2
39.3
58.8
31.7
64.3
23.3
-----
95
EA (dB)
80
50.0
50.0
52.2
47.4
58.8
39.7
64.3
31.0
68.3
24.2
85
56.8
56.8
55.4
55.4
58.8
47.7
64.3
38.6
68.3
31.3
Do not operate
Cubic feet per minute (supply air)
Entering air temperature (dry bulb)
Entering air temperature (wet bulb)
Sensible heat capacity
Total capacity
20
75
46.9
40.3
48.2
37.2
54.8
29.6
60.7
21.5
-----
105
EA (dB)
80
46.9
46.9
48.2
45.2
54.8
37.7
60.7
29.3
64.8
22.5
85
53.4
53.4
53.3
53.3
54.8
45.7
60.7
37.0
64.8
29.9
75
44.4
38.4
44.7
36.2
51.0
28.6
55.4
19.8
-----
115
EA (dB)
80
44.4
44.4
44.7
44.2
51.0
36.6
55.4
27.2
58.4
20.3
85
50.4
50.4
52.1
52.1
51.0
44.6
55.4
34.7
58.4
27.7
Table 11 – COOLING CAPACITIES
1-- STAGE COOLING
5 TONS
50KC*B06 (5 TONS) --- UNIT WITH HUMIDI---MIZER SYSTEM IN SUBCOOLING MODE
AIR ENTERING EVAPORATOR --- SCFM
1750
2000
2250
Air Entering Evaporator --- --- Ewb (F)
72
67
62
72
67
62
72
67
62
75
TC
SHC
kW
51.1
25.5
3.20
56.4
36.1
3.30
57.9
50.4
3.19
47.8
24.6
3.25
49.9
31.3
3.18
57.3
50.3
3.13
49.6
25.8
3.22
48.9
32.0
3.13
53.8
44.8
3.25
85
TC
SHC
kW
54.1
47.2
3.59
60.4
38.7
3.67
61.0
28.0
3.79
56.4
52.3
3.81
60.4
40.6
3.70
60.5
28.8
3.60
56.7
27.2
3.70
60.7
42.6
3.74
58.2
56.5
3.61
95
TC
SHC
kW
62.4
26.3
4.20
56.6
34.9
4.09
48.4
41.9
3.92
62.7
27.8
3.97
58.6
38.7
4.10
50.5
46.9
4.25
62.8
29.0
4.28
60.0
42.1
4.12
52.6
51.5
4.03
105
TC
SHC
kW
58.8
22.0
4.64
49.9
29.0
4.46
41.6
35.8
4.28
60.5
24.4
4.33
51.9
32.9
4.52
43.6
40.7
4.66
61.6
26.5
4.69
53.5
36.6
4.57
47.6
42.3
4.41
115
TC
SHC
kW
51.4
15.7
5.08
41.9
22.2
4.83
33.8
29.0
4.63
53.3
18.1
4.69
43.7
26.0
4.88
35.9
33.9
5.14
54.7
20.4
5.19
45.3
29.7
4.92
39.2
35.3
4.77
50KC*B06 (5 TONS) --- UNIT WITH HUMIDI---MIZER SYSTEM IN HOT GAS REHEAT MODE
AIR ENTERING EVAPORATOR --- Ewb (F)
75 Dry Bulb
62.5 Wet Bulb
(50% Relative)
TEMP (F)
AIR ENT
CONDENSER
(Edb)
75 Dry Bulb
64 Wet Bulb
(56% Relative)
75 Dry Bulb
65.3 Wet Bulb
(60% Relative)
Air Entering Evaporator --- Cfm
1750
2000
2250
1750
2000
2250
1750
2000
2250
80
TC
SHC
kW
13.19
--- 2.38
3.15
12.95
--- 1.55
3.16
12.70
--- 0.65
3.16
14.56
--- 4.75
3.19
14.30
--- 4.25
3.20
14.00
--- 3.69
3.20
15.70
--- 6.74
3.22
15.44
--- 6.49
3.23
15.05
--- 6.21
3.23
75
TC
SHC
kW
16.14
0.44
3.04
15.95
1.23
3.05
15.71
2.03
3.06
17.36
--- 1.92
3.07
17.20
--- 1.36
3.08
16.84
--- 0.96
3.09
18.30
--- 3.90
3.10
18.20
--- 3.50
3.12
17.81
--- 3.31
3.12
70
TC
SHC
kW
18.90
3.13
2.92
18.68
3.80
2.93
18.52
4.51
2.95
19.97
0.85
2.96
19.85
1.39
2.97
19.50
1.70
2.98
20.86
--- 0.97
2.98
20.62
--- 0.69
2.99
20.17
--- 0.63
3.00
60
TC
SHC
kW
23.71
8.11
3.17
23.48
8.63
3.23
23.16
8.88
3.15
24.05
5.97
3.21
23.98
6.46
3.26
23.52
6.58
3.18
24.79
4.65
3.23
24.47
4.87
3.12
26.99
5.94
3.10
50
TC
SHC
kW
21.91
11.51
3.01
16.69
10.04
3.07
16.62
9.64
3.11
16.81
9.77
3.04
16.98
9.43
3.10
16.92
8.95
3.15
17.08
9.30
3.07
17.24
8.88
3.14
17.17
8.35
3.18
40
TC
SHC
kW
21.91
11.51
3.39
16.69
10.04
3.32
16.62
9.64
3.24
16.81
9.77
3.14
16.98
9.43
3.23
16.92
8.95
3.15
17.08
9.30
3.18
17.24
8.88
3.27
17.17
8.35
3.08
LEGEND
Edb --Ewb --kW --Idb --Iwb --SHC --TC
---
Entering Dry--- Bulb
Entering Wet--- Bulb
Compressor Motor Power Input
Leaving Dry--- Bulb
Leaving Wet--- Bulb
Sensible Heat Capacity (1000 Btuh) Gross
Total Capacity (1000 Btuh) Gross
21
50KC
TEMP (F)
AIR ENT
CONDENSER
(Edb)
Table 12 – STATIC PRESSURE ADDERS (IN. WG) (FACTORY OPTIONS AND/OR ACCESSORIES)
CFM
1 Electric Heater Module
2 Electric Heater Modules
600
0.03
0.13
900
0.05
0.15
3---5 TONS
1400
0.09
0.16
1200
0.07
0.16
1600
0.09
0.16
1800
0.10
0.17
2000
0.11
0.17
2200
0.11
0.17
2400
0.12
0.18
2600
0.13
0.18
3---5---TONS
CFM
600
800
1000
1250
1500
1750
2000
2250
2500
Vertical Economizer
0.012
0.020
0.030
0.046
0.066
0.089
0.115
0.145
0.179
Horizontal Economizer
0.018
0.026
0.037
0.053
0.073
0.096
0.124
0.154
0.189
All above data for both standard and ultra low leak models, where available.
3---5---TONS
CFM
50KC
Humidi---MiZer
600
800
1000
1250
1500
1750
2000
2250
2500
0.023
0.033
0.042
0.054
0.067
0.080
0.093
0.106
0.120
3---5---TONS
Power Exhaust Performance
Return Duct Static Pressure (in wg)
Vertical Power Exhaust CFM
0.0
0.1
0.2
0.3
0.4
0.5
3239
2974
2642
2244
1780
1249
22
1. Interpolation is permissible. Do not extrapolate.
2. External static pressure is the static pressure difference between the return duct and the supply duct plus the static
pressure caused by any FIOPs or accessories.
3. Tabular data accounts for pressure loss due to clean filters, unit casing, and wet coils. Factory options and accessories
may add static pressure losses. Selection software is available, through your salesperson, to help you select the best
motor/drive combination for your application.
4. The Fan Performance tables offer motor/drive recommendations. In cases when two motor/drive combinations would
work, Carrier recommended the lower horsepower option.
5. For information on the electrical properties of Carrier motors, please see the Electrical information section of this
book.
6. For more information on the performance limits of Carrier motors, see the application data section of this book.
7. The EPACT (Energy Policy Act of 1992) regulates energy requirements for specific types of indoor fan motors. Motors regulated by EPACT include any general purpose, T-- frame (three-- digit, 143 and larger), single-- speed, foot
mounted, polyphase, squirrel cage induction motors of NEMA (National Electrical Manufacturers Association) design
A and B, manufactured for use in the United States. Ranging from 1 to 200 Hp, these continuous-- duty motors operate
on 230 and 460 volt, 60 Hz power. If a motor does not fit into these specifications, the motor does not have to be
replaced by an EPACT compliant energy-- efficient motor. Variable-- speed motors are exempt from EPACT compliance
requirements. Therefore, the indoor fan motors for Carrier 50KC-- *04/06 units are exempt from these requirements.
23
50KC
GENERAL FAN PERFORMANCE NOTES
FAN PERFORMANCE (DIRECT DRIVE)
Table 13 – 50KC-- 04 Vertical Unit - Direct Drive
Speed
(Torque) tap
50KC
1
2
3
4
5
CFM
ESP
BHP
900
0.36
0.16
Table 14 – 50KC-- 04 Horizontal Unit - Direct Drive
Speed
(Torque) tap
CFM
ESP
BHP
900
0.47
0.21
975
0.27
0.16
975
0.38
0.20
1050
0.19
0.15
1050
0.29
0.19
1125
0.11
0.15
1125
0.21
0.18
1200
0.04
0.16
1200
0.13
0.18
1275
---
---
1275
0.06
0.20
1350
---
---
1350
---
---
1425
---
---
1425
---
---
1500
---
---
1500
---
---
900
0.53
0.22
900
0.65
0.27
975
0.43
0.21
975
0.54
0.26
1050
0.32
0.21
1050
0.44
0.25
1125
0.22
0.20
1125
0.33
0.24
1200
0.13
0.19
1200
0.23
0.23
1275
0.04
0.18
1275
0.13
0.21
1350
---
---
1350
0.02
0.20
1425
---
---
1425
---
---
1
2
1500
---
---
1500
---
---
900
0.81
0.32
900
0.96
0.38
975
0.70
0.31
975
0.84
0.37
1050
0.60
0.30
1050
0.73
0.36
1125
0.49
0.29
1125
0.61
0.34
1200
0.38
0.27
1200
0.50
0.33
1275
0.27
0.26
1275
0.38
0.31
1350
0.18
0.25
1350
0.26
0.30
1425
0.10
0.24
1425
0.15
0.28
3
1500
---
---
1500
0.04
0.26
900
1.06
0.42
900
1.17
0.46
975
0.95
0.42
975
1.08
0.46
1050
0.84
0.42
1050
0.98
0.46
1125
0.73
0.41
1125
0.87
0.45
1200
0.60
0.39
1200
0.75
0.44
1275
0.48
0.38
1275
0.63
0.42
1350
0.35
0.36
1350
0.51
0.40
1425
0.22
0.34
1425
0.39
0.39
1500
0.11
0.31
1500
0.27
0.37
900
1.24
0.51
900
1.35
0.52
975
1.19
0.52
975
1.30
0.54
1050
1.14
0.54
1050
1.26
0.57
1125
1.08
0.57
1125
1.21
0.59
1200
1.03
0.59
1200
1.16
0.62
1275
0.98
0.61
1275
1.12
0.64
1350
0.93
0.64
1350
1.07
0.67
1425
0.88
0.67
1425
1.02
0.70
1500
0.82
0.69
1500
0.97
0.73
4
5
24
FAN PERFORMANCE (DIRECT DRIVE) (cont.)
Speed
(Torque) tap
1
2
3
4
5
CFM
ESP
BHP
1200
0.50
1300
1400
Table 16 – 50KC-- 05 Horizontal Unit - Direct Drive
Speed
(Torque) tap
CFM
ESP
BHP
0.32
1200
0.61
0.38
0.35
0.31
1300
0.45
0.36
0.20
0.29
1400
0.30
0.33
1500
---
---
1500
0.15
0.31
1600
---
---
1600
0.03
0.29
1700
---
---
1700
---
---
1800
---
---
1800
---
---
1900
---
---
1900
---
---
2000
---
---
2000
---
---
1200
0.63
0.38
1200
0.75
0.44
1300
0.46
0.36
1300
0.59
0.42
1400
0.30
0.34
1400
0.43
0.39
1500
0.15
0.32
1500
0.27
0.37
1600
---
---
1600
0.12
0.35
1700
---
---
1700
0.01
0.32
1800
---
---
1800
---
---
1900
---
---
1900
---
---
1
2
2000
---
---
2000
---
---
1200
0.98
0.56
1200
1.13
0.59
1300
0.88
0.59
1300
1.03
0.62
1400
0.75
0.59
1400
0.91
0.63
1500
0.61
0.56
1500
0.76
0.61
1600
0.44
0.53
1600
0.61
0.59
1700
0.26
0.53
1700
0.43
0.59
1800
0.08
0.48
1800
0.26
0.54
1900
---
---
1900
0.09
0.51
3
2000
---
---
2000
---
---
1200
1.00
0.57
1200
1.15
0.60
1300
0.94
0.60
1300
1.08
0.64
1400
0.87
0.63
1400
1.01
0.67
1500
0.78
0.66
1500
0.93
0.70
1600
0.68
0.69
1600
0.84
0.73
1700
0.57
0.71
1700
0.74
0.75
1800
0.43
0.68
1800
0.62
0.75
1900
0.28
0.67
1900
0.47
0.73
2000
---
---
2000
0.31
0.71
1200
1.03
0.59
1200
1.16
0.62
1300
0.96
0.62
1300
1.10
0.65
1400
0.89
0.66
1400
1.04
0.69
1500
0.82
0.69
1500
0.97
0.73
1600
0.75
0.73
1600
0.90
0.77
1700
0.67
0.77
1700
0.84
0.81
1800
0.58
0.81
1800
0.76
0.85
1900
0.50
0.85
1900
0.69
0.89
2000
0.40
0.89
2000
0.61
0.93
4
5
25
50KC
Table 15 – 50KC-- 05 Vertical Unit - Direct Drive
FAN PERFORMANCE (DIRECT DRIVE) (cont.)
Table 17 – 50KC-- 06 Vertical Unit - Direct Drive
Speed
(Torque) tap
50KC
1
2
3
4
5
CFM
ESP
BHP
1500
0.46
1625
1750
Table 18 – 50KC-- 06 Horizontal Unit - Direct Drive
Speed
(Torque) tap
CFM
ESP
BHP
0.42
1500
0.59
0.46
0.29
0.39
1625
0.41
0.44
0.11
0.37
1750
0.23
0.40
1875
---
---
1875
0.07
0.37
2000
---
---
2000
---
---
2125
---
---
2125
---
---
2250
---
---
2250
---
---
2375
---
---
2375
---
---
2500
---
---
2500
---
---
1500
0.68
0.54
1500
0.83
0.58
1625
0.48
0.51
1625
0.63
0.55
1750
0.30
0.48
1750
0.44
0.52
1875
0.13
0.45
1875
0.26
0.49
2000
---
---
2000
0.08
0.45
2125
---
---
2125
---
---
2250
---
---
2250
---
---
2375
---
---
2375
---
---
1
2
2500
---
---
2500
---
---
1500
1.17
0.82
1500
1.34
0.87
1625
0.98
0.80
1625
1.17
0.85
1750
0.78
0.79
1750
0.97
0.83
1875
0.56
0.76
1875
0.76
0.80
2000
0.36
0.72
2000
0.55
0.76
2125
0.17
0.72
2125
0.34
0.76
2250
0.02
0.64
2250
0.17
0.68
2375
---
---
2375
0.04
0.63
3
2500
---
---
2500
---
---
1500
1.29
0.91
1500
1.47
0.94
1625
1.14
0.89
1625
1.33
0.93
1750
0.96
0.92
1750
1.17
0.97
1875
0.75
0.90
1875
0.98
0.96
2000
0.53
0.86
2000
0.77
0.92
2125
0.32
0.82
2125
0.56
0.88
2250
0.12
0.78
2250
0.35
0.84
2375
0.01
0.75
2375
0.16
0.79
2500
---
---
2500
0.01
0.73
1500
1.36
0.94
1500
1.52
0.97
1625
1.24
0.99
1625
1.42
1.01
1750
1.10
1.02
1750
1.30
1.05
1875
0.93
1.05
1875
1.16
1.09
2000
0.74
1.03
2000
1.00
1.09
2125
0.53
0.99
2125
0.82
1.06
2250
0.31
0.94
2250
0.62
1.02
2375
0.08
0.90
2375
0.40
0.98
2500
---
0.86
2500
0.16
0.93
4
5
26
FAN PERFORMANCE (BELT DRIVE) (cont.)
CFM
900
975
1050
1125
1200
1275
1350
1425
1500
0.2
RPM
594
618
642
668
695
722
750
778
807
CFM
900
975
1050
1125
1200
1275
1350
1425
1500
1 PHASE
BHP
0.15
0.17
0.19
0.22
0.25
0.29
0.33
0.37
0.42
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
740
0.25
867
0.37
981
758
0.28
881
0.40
991
777
0.30
896
0.43
1003
797
0.34
912
0.47
1017
818
0.37
930
0.51
1032
841
0.41
949
0.55
1048
864
0.46
968
0.60
1065
888
0.50
989
0.65
1083
913
0.56
1011
0.71
1103
1.2
RPM
1180
1186
1194
1204
1215
1227
1240
1254
---
BHP
0.86
0.89
0.92
0.97
1.01
1.06
1.12
1.18
---
RPM
1269
1275
1281
1289
-----------
Table 20 – 50KC-- *04
RPM
1084
1092
1102
1113
1126
1140
1155
1171
1188
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
BHP
RPM
BHP
RPM
BHP
1.05
--------1.08
--------1.12
--------1.16
-----------------------------------------------------------
RPM
-------------------
900
975
1050
1125
1200
1275
1350
1425
1500
RPM
574
597
621
646
671
696
723
749
776
CFM
900
975
1050
1125
1200
1275
1350
1425
1500
BHP
0.13
0.15
0.18
0.20
0.23
0.26
0.30
0.34
0.38
RPM
1078
1093
1108
1123
1140
1157
1174
1192
1210
BHP
0.77
0.80
0.84
0.88
0.92
0.97
1.02
1.08
1.14
RPM
1151
1165
1180
1195
1210
1226
1243
-----
2.0
BHP
-------------------
3 TON HORIZONTAL SUPPLY
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
707
0.23
817
0.34
913
727
0.25
835
0.37
929
747
0.28
853
0.40
946
768
0.31
872
0.43
964
790
0.34
892
0.47
982
812
0.38
912
0.51
1001
835
0.42
933
0.55
1020
859
0.46
955
0.60
1040
883
0.51
977
0.65
1061
1.2
BHP
0.68
0.71
0.75
0.79
0.83
0.88
0.93
0.99
1.05
Standard static 560--- 854 RPM, 1.2 BHP max
High static 770--- 1175 RPM, 1.5 BHP max
1 PHASE
0.2
1.0
BHP
0.52
0.55
0.58
0.62
0.66
0.71
0.76
0.81
0.87
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
CFM
3 TON VERTICAL SUPPLY
1.0
BHP
0.47
0.50
0.53
0.57
0.61
0.65
0.70
0.75
0.80
RPM
999
1015
1030
1047
1064
1082
1100
1119
1138
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
BHP
RPM
BHP
RPM
BHP
0.93
1220
1.11
----0.97
1233
1.15
----1.01
1247
1.19
----1.05
--------1.10
--------1.15
--------1.20
-----------------------------
RPM
-------------------
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
2.0
Standard static 560--- 854 RPM, 1.2 BHP max
High static 770--- 1175 RPM, 1.5 BHP max
27
BHP
0.61
0.64
0.68
0.72
0.76
0.81
0.86
0.91
0.97
BHP
-------------------
50KC
Table 19 – 50KC-- *04
FAN PERFORMANCE (BELT DRIVE) (cont.)
Table 21 – 50KC-- *04
CFM
50KC
900
975
1050
1125
1200
1275
1350
1425
1500
0.2
RPM
594
618
642
668
695
722
750
778
807
CFM
900
975
1050
1125
1200
1275
1350
1425
1500
3 PHASE
0.4
BHP
0.15
0.17
0.19
0.22
0.25
0.29
0.33
0.37
0.42
RPM
740
758
777
797
818
841
864
888
913
1.2
RPM
1180
1186
1194
1204
1215
1227
1240
1254
1270
1.4
BHP
0.86
0.89
0.92
0.97
1.01
1.06
1.12
1.18
1.24
RPM
1269
1275
1281
1289
1298
1309
1321
1333
1347
Available External Static Pressure (in. wg)
0.6
0.8
BHP
RPM
BHP
RPM
0.25
867
0.37
981
0.28
881
0.40
991
0.30
896
0.43
1003
0.34
912
0.47
1017
0.37
930
0.51
1032
0.41
949
0.55
1048
0.46
968
0.60
1065
0.50
989
0.65
1083
0.56
1011
0.71
1103
BHP
0.52
0.55
0.58
0.62
0.66
0.71
0.76
0.81
0.87
RPM
1084
1092
1102
1113
1126
1140
1155
1171
1188
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
1.05
1354
1.25
1434
1.08
1358
1.29
1437
1.12
1363
1.32
1441
1.16
1370
1.37
1447
1.21
1378
1.42
1454
1.26
1387
1.47
1462
1.32
1397
1.53
1471
1.38
1409
1.59
1481
1.45
1421
1.66
1492
BHP
1.47
1.51
1.54
1.59
1.64
1.69
1.75
1.82
1.89
RPM
1511
1513
1516
1520
1526
1533
1541
-----
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
Table 22 – 50KC-- *04
CFM
900
975
1050
1125
1200
1275
1350
1425
1500
CFM
900
975
1050
1125
1200
1275
1350
1425
1500
0.4
BHP
0.13
0.15
0.18
0.20
0.23
0.26
0.30
0.34
0.38
RPM
707
727
747
768
790
812
835
859
883
BHP
0.77
0.80
0.84
0.88
0.92
0.97
1.02
1.08
1.14
RPM
1151
1165
1180
1195
1210
1226
1243
1260
1278
1.2
RPM
1078
1093
1108
1123
1140
1157
1174
1192
1210
BHP
0.68
0.71
0.75
0.79
0.83
0.88
0.93
0.99
1.05
2.0
BHP
1.70
1.74
1.78
1.82
1.87
1.92
1.99
-----
3 TON HORIZONTAL SUPPLY
Available External Static Pressure (in. wg)
0.6
0.8
BHP
RPM
BHP
RPM
0.23
817
0.34
913
0.25
835
0.37
929
0.28
853
0.40
946
0.31
872
0.43
964
0.34
892
0.47
982
0.38
912
0.51
1001
0.42
933
0.55
1020
0.46
955
0.60
1040
0.51
977
0.65
1061
1.4
1.6
BHP
0.93
0.97
1.01
1.05
1.10
1.15
1.20
1.26
1.33
1.0
Medium static 770--- 1175 RPM, 1.7 BHP max
High static 1035 --- 1466 RPM, 2.9 BHP max
3 PHASE
0.2
RPM
574
597
621
646
671
696
723
749
776
3 TON VERTICAL SUPPLY
RPM
1220
1233
1247
1261
1276
1292
1308
1325
1342
RPM
999
1015
1030
1047
1064
1082
1100
1119
1138
BHP
1.30
1.33
1.38
1.42
1.47
1.53
1.59
1.65
1.72
RPM
1346
1358
1371
1385
1399
1414
1429
1444
1461
1.8
BHP
1.11
1.15
1.19
1.23
1.28
1.33
1.39
1.45
1.52
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
1.0
BHP
0.47
0.50
0.53
0.57
0.61
0.65
0.70
0.75
0.80
RPM
1284
1297
1311
1325
1339
1354
1370
1386
1403
2.0
Medium static 770--- 1175 RPM, 1.7 BHP max v
High static 1035 --- 1466 RPM, 2.9 BHP max
28
BHP
0.61
0.64
0.68
0.72
0.76
0.81
0.86
0.91
0.97
BHP
1.49
1.53
1.58
1.62
1.68
1.73
1.80
1.86
1.93
FAN PERFORMANCE (BELT DRIVE) (cont.)
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
0.2
RPM
695
731
769
807
847
887
928
969
1010
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
1 PHASE
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
BHP
RPM
BHP
RPM
0.37
930
0.51
1032
0.43
955
0.57
1053
0.49
982
0.63
1077
0.56
1011
0.71
1103
0.63
1042
0.79
1130
0.72
1073
0.88
1158
0.82
1106
0.98
1188
0.92
1140
1.09
--1.04
1175
1.21
---
RPM
818
849
880
913
948
983
1020
1057
1095
BHP
0.66
0.72
0.79
0.87
0.96
1.06
1.16
-----
RPM
1126
1145
1166
1188
1213
---------
BHP
1.01
1.08
1.16
-------------
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
RPM
BHP
RPM
BHP
RPM
BHP
1298
1.21
---------------------------------------------------------------------------------------------------------
RPM
-------------------
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
Table 24 – 50KC-- *05
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
BHP
-------------------
4 TON HORIZONTAL SUPPLY
BHP
0.23
0.28
0.33
0.38
0.45
0.52
0.60
0.69
0.78
BHP
0.61
0.67
0.73
0.80
0.89
0.97
1.07
1.18
---
RPM
1064
1088
1113
1138
1165
1192
-------
BHP
0.92
0.99
1.06
1.14
-----------
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
RPM
BHP
RPM
BHP
RPM
BHP
1210
1.10
--------1232
1.16
---------------------------------------------------------------------------------------------
RPM
-------------------
1.2
RPM
1140
1162
1186
1210
-----------
2.0
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
RPM
BHP
RPM
BHP
RPM
790
0.34
892
0.47
982
820
0.39
919
0.52
1007
851
0.45
947
0.58
1034
883
0.51
977
0.65
1061
916
0.58
1007
0.73
1089
949
0.66
1038
0.81
1118
984
0.75
1069
0.90
1148
1019
0.84
1102
1.00
1179
1054
0.94
1135
1.11
---
0.2
BHP
0.83
0.89
0.97
1.05
1.14
---------
Standard static 560--- 854 RPM, 1.2 BHP max
High static 770--- 1175 RPM, 1.5 BHP max
1 PHASE
RPM
671
705
740
776
813
851
888
927
965
1.0
BHP
0.25
0.30
0.36
0.42
0.49
0.57
0.66
0.76
0.87
1.2
RPM
1215
1231
1249
-------------
4 TON VERTICAL SUPPLY
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
1.0
2.0
Standard static 560--- 854 RPM, 1.2 BHP max
High static 770--- 1175 RPM, 1.5 BHP max
29
BHP
0.76
0.82
0.89
0.97
1.05
1.15
-------
BHP
-------------------
50KC
Table 23 – 50KC-- *05
FAN PERFORMANCE (BELT DRIVE) (cont.)
Table 25 – 50KC-- *05
CFM
50KC
1200
1300
1400
1500
1600
1700
1800
1900
2000
0.2
RPM
695
731
769
807
847
887
928
969
1010
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
3 PHASE
0.4
BHP
0.25
0.30
0.36
0.42
0.49
0.57
0.66
0.76
0.87
RPM
818
849
880
913
948
983
1020
1057
1095
1.2
RPM
1215
1231
1249
1270
1292
1315
1341
1367
1395
1.4
BHP
1.01
1.08
1.16
1.24
1.34
1.44
1.56
1.68
1.82
RPM
1298
1313
1329
1347
1367
1389
1412
1437
1463
Available External Static Pressure (in. wg)
0.6
0.8
BHP
RPM
BHP
RPM
0.37
930
0.51
1032
0.43
955
0.57
1053
0.49
982
0.63
1077
0.56
1011
0.71
1103
0.63
1042
0.79
1130
0.72
1073
0.88
1158
0.82
1106
0.98
1188
0.92
1140
1.09
1219
1.04
1175
1.21
1251
BHP
0.66
0.72
0.79
0.87
0.96
1.06
1.16
1.28
1.41
RPM
1126
1145
1166
1188
1213
1239
1266
1295
1325
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
1.21
1378
1.42
1454
1.28
1390
1.49
1465
1.36
1405
1.57
1478
1.45
1421
1.66
1492
1.54
1440
1.76
1509
1.65
1459
1.88
1527
1.77
1481
2.00
1547
1.90
1504
2.13
1569
2.04
1528
2.28
1591
BHP
1.64
1.71
1.79
1.89
1.99
2.11
2.23
2.37
2.52
RPM
1526
1536
1547
1561
1576
1593
1612
1632
1653
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
Table 26 – 50KC-- *05
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
RPM
671
705
740
776
813
851
888
927
965
CFM
1200
1300
1400
1500
1600
1700
1800
1900
2000
0.4
BHP
0.23
0.28
0.33
0.38
0.45
0.52
0.60
0.69
0.78
RPM
790
820
851
883
916
949
984
1019
1054
1.2
RPM
1140
1162
1186
1210
1236
1262
1289
1317
1345
1.4
BHP
0.92
0.99
1.06
1.14
1.23
1.33
1.44
1.55
1.68
RPM
1210
1232
1254
1278
1302
1328
1354
1380
1408
1.0
BHP
0.83
0.89
0.97
1.05
1.14
1.24
1.35
1.48
1.61
2.0
BHP
1.87
1.94
2.03
2.13
2.23
2.35
2.48
2.62
2.77
Medium static 920--- 1303 RPM, 1.7 BHP max
High static 1208 --- 1639 RPM, 2.9 BHP max
3 PHASE
0.2
4 TON VERTICAL SUPPLY
4 TON HORIZONTAL SUPPLY
Available External Static Pressure (in. wg)
0.6
0.8
BHP
RPM
BHP
RPM
0.34
892
0.47
982
0.39
919
0.52
1007
0.45
947
0.58
1034
0.51
977
0.65
1061
0.58
1007
0.73
1089
0.66
1038
0.81
1118
0.75
1069
0.90
1148
0.84
1102
1.00
1179
0.94
1135
1.11
1210
BHP
0.61
0.67
0.73
0.80
0.89
0.97
1.07
1.18
1.29
RPM
1064
1088
1113
1138
1165
1192
1221
1250
1280
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
1.10
1276
1.28
1339
1.16
1297
1.35
1360
1.24
1319
1.43
1381
1.33
1342
1.52
1403
1.42
1365
1.62
1425
1.52
1390
1.72
1449
1.63
1415
1.84
1473
1.75
1441
1.96
1498
1.88
1467
2.10
1524
BHP
1.47
1.55
1.63
1.72
1.82
1.93
2.05
2.18
2.32
RPM
1399
1419
1439
1461
1483
1505
1529
1553
1579
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
1.0
2.0
Medium static 920--- 1303 RPM, 1.7 BHP max
High static 1208 --- 1639 RPM, 2.9 BHP max
30
BHP
0.76
0.82
0.89
0.97
1.05
1.15
1.25
1.36
1.48
BHP
1.68
1.75
1.84
1.93
2.04
2.15
2.27
2.41
2.55
FAN PERFORMANCE (BELT DRIVE) (cont.)
CFM
1500
1625
1750
1875
2000
2125
2250
2375
2500
0.2
RPM
794
840
888
936
984
1033
1083
1133
1183
CFM
1500
1625
1750
1875
2000
2125
2250
2375
2500
1 PHASE
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
BHP
RPM
BHP
RPM
0.55
993
0.69
1074
0.64
1034
0.80
1113
0.75
1075
0.92
1153
0.87
1117
1.05
1193
1.00
1160
1.19
1235
1.15
1204
1.35
--1.32
1248
1.53
--1.50
---------------
RPM
902
945
988
1033
1078
1124
1170
1217
---
BHP
0.85
0.96
1.09
1.23
1.39
---------
RPM
1147
1185
1223
1263
-----------
BHP
1.16
1.30
1.44
-------------
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
RPM
BHP
RPM
BHP
RPM
BHP
1277
1.33
1336
1.50
----1313
1.47
---------------------------------------------------------------------------------------------
RPM
-------------------
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
Table 28 – 50KC-- *06
CFM
1500
1625
1750
1875
2000
2125
2250
2375
2500
CFM
1500
1625
1750
1875
2000
2125
2250
2375
2500
BHP
0.33
0.40
0.48
0.57
0.66
0.78
0.90
1.03
1.19
BHP
1.06
1.16
1.28
1.41
-----------
BHP
-------------------
5 TON HORIZONTAL SUPPLY
RPM
840
876
912
950
988
1027
1067
1107
1148
BHP
0.75
0.84
0.94
1.05
1.18
1.31
1.46
-----
RPM
1101
1131
1162
1194
1226
1260
-------
RPM
1239
1267
1296
-------------
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
1.4
1.6
1.8
BHP
RPM
BHP
RPM
BHP
1.23
1302
1.40
----1.34
1329
1.52
----1.46
---------------------------------------------------------------------
RPM
-------------------
1.2
RPM
1172
1201
1231
1262
-----------
2.0
AVAILABLE EXTERNAL STATIC PRESSURE (in. wg)
0.4
0.6
0.8
BHP
RPM
BHP0.40
RPM
0.46
937
0.60
1023
0.54
970
0.68
1054
0.63
1004
0.78
1087
0.72
1039
0.88
1120
0.83
1075
1.00
1154
0.95
1112
1.13
1189
1.08
1149
1.27
1224
1.23
1187
1.43
--1.39
-------
0.2
BHP
1.00
1.13
1.26
1.41
-----------
Standard static 770--- 1175 RPM, 1.2 BHP max
High static 1035--- 1466 RPM, 1.5 BHP max
1 PHASE
RPM
725
765
806
847
889
931
974
1018
1061
1.0
BHP
0.41
0.49
0.59
0.70
0.82
0.96
1.11
1.28
1.47
1.2
RPM
1214
1251
1289
-------------
5 TON VERTICAL SUPPLY
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
1.0
2.0
Standard static 770--- 1175 RPM, 1.2 BHP max
High static 1035--- 1466 RPM, 1.5 BHP max
31
BHP
0.90
1.00
1.11
1.23
1.36
1.50
-------
BHP
-------------------
50KC
Table 27 – 50KC-- *06
FAN PERFORMANCE (BELT DRIVE) (cont.)
Table 29 – 50KC-- *06
CFM
50KC
1500
1625
1750
1875
2000
2125
2250
2375
2500
0.2
RPM
794
840
888
936
984
1033
1083
1133
1183
CFM
1500
1625
1750
1875
2000
2125
2250
2375
2500
3 PHASE
0.4
BHP
0.41
0.49
0.59
0.70
0.82
0.96
1.11
1.28
1.47
RPM
902
945
988
1033
1078
1124
1170
1217
1265
1.2
RPM
1214
1251
1289
1327
1366
1406
1446
1487
1529
1.4
BHP
1.16
1.30
1.44
1.60
1.78
1.97
2.18
2.40
2.64
RPM
1277
1313
1350
1387
1426
1464
1504
1544
1585
Available External Static Pressure (in. wg)
0.6
0.8
BHP
RPM
BHP
RPM
0.55
993
0.69
1074
0.64
1034
0.80
1113
0.75
1075
0.92
1153
0.87
1117
1.05
1193
1.00
1160
1.19
1235
1.15
1204
1.35
1277
1.32
1248
1.53
1319
1.50
1293
1.72
1363
1.70
1339
1.93
1406
BHP
0.85
0.96
1.09
1.23
1.39
1.56
1.74
1.95
2.17
RPM
1147
1185
1223
1263
1303
1343
1385
1427
1470
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
1.33
1336
1.50
1392
1.47
1371
1.65
1427
1.63
1407
1.81
1462
1.80
1444
1.99
1498
1.98
1482
2.19
1535
2.18
1520
2.40
1573
2.40
1559
2.62
1611
2.63
1598
2.87
1650
2.89
1638
3.13
---
BHP
1.67
1.83
2.01
2.19
2.40
2.62
2.85
3.11
---
RPM
1445
1479
1514
1550
1586
1623
1661
-----
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
Table 30 – 50KC-- *06
CFM
1500
1625
1750
1875
2000
2125
2250
2375
2500
RPM
725
765
806
847
889
931
974
1018
1061
CFM
1500
1625
1750
1875
2000
2125
2250
2375
2500
0.4
BHP
0.33
0.40
0.48
0.57
0.66
0.78
0.90
1.03
1.19
RPM
840
876
912
950
988
1027
1067
1107
1148
1.2
RPM
1172
1201
1231
1262
1294
1326
1359
1393
1427
1.4
BHP
1.06
1.16
1.28
1.41
1.55
1.70
1.87
2.05
2.24
RPM
1239
1267
1296
1326
1357
1388
1420
1453
1487
1.0
BHP
1.00
1.13
1.26
1.41
1.58
1.76
1.96
2.17
2.41
2.0
BHP
1.85
2.02
2.20
2.40
2.61
2.84
3.09
-----
Medium static 1035 --- 1466 RPM, 2.9 BHP max
High static 1303 --- 1687 RPM, 2.9 BHP max
3 PHASE
0.2
5 TON VERTICAL SUPPLY
5 TON HORIZONTAL SUPPLY
Available External Static Pressure (in. wg)
0.6
0.8
BHP
RPM
BHP
RPM
0.46
937
0.60
1023
0.54
970
0.68
1054
0.63
1004
0.78
1087
0.72
1039
0.88
1120
0.83
1075
1.00
1154
0.95
1112
1.13
1189
1.08
1149
1.27
1224
1.23
1187
1.43
1261
1.39
1226
1.59
1297
BHP
0.75
0.84
0.94
1.05
1.18
1.31
1.46
1.63
1.81
RPM
1101
1131
1162
1194
1226
1260
1294
1329
1364
BHP
0.90
1.00
1.11
1.23
1.36
1.50
1.66
1.84
2.02
Available External Static Pressure (in. wg)
1.6
1.8
BHP
RPM
BHP
RPM
1.23
1302
1.40
1361
1.34
1329
1.52
1388
1.46
1358
1.65
1416
1.60
1387
1.79
1445
1.74
1417
1.95
1474
1.90
1447
2.11
1504
2.08
1479
2.29
1534
2.27
1511
2.49
1566
2.47
1543
2.70
1597
BHP
1.58
1.71
1.84
1.99
2.15
2.33
2.51
2.72
2.94
2.0
RPM
1418
1444
1472
1499
1528
1557
1587
1618
1649
2.0
BHP
1.77
1.90
2.04
2.20
2.36
2.55
2.74
2.95
3.18
NOTE: For more information, see General Fan Performance Notes.
Boldface indicates field --- supplied drive is required.
1.0
Medium static 1035 --- 1466 RPM, 2.9 BHP max
High static 1303 --- 1687 RPM, 2.9 BHP max
32
FAN PERFORMANCE (cont.)
Table 31 – PULLEY ADJUSTMENT - BELT DRIVE
04
05
1 phase
06
04
05
06
3 phase
MOTOR/DRIVE
COMBO
MOTOR PULLEY TURNS OPEN
0
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
Medium Static
854
825
795
766
736
707
678
648
619
589
560
High Static
1175
1135
1094
1054
1013
973
932
892
851
811
770
Medium Static
854
825
795
766
736
707
678
648
619
589
560
High Static
1175
1135
1094
1054
1013
973
932
892
851
811
770
Medium Static
1175
1135
1094
1054
1013
973
932
892
851
811
770
1035
High Static
1466
1423
1380
1337
1294
1251
1207
1164
1121
1078
Medium Static
1175
1135
1094
1054
1013
973
932
892
851
811
770
High Static
1466
1423
1380
1337
1294
1251
1207
1164
1121
1078
1035
Medium Static
1303
1265
1226
1188
1150
1112
1073
1035
997
958
920
High Static
1639
1596
1553
1510
1467
1424
1380
1337
1294
1251
1208
Medium Static
1466
1423
1380
1337
1294
1251
1207
1164
1121
1078
1035
High Static
1687
1649
1610
1572
1533
1495
1457
1418
1380
1341
1303
NOTE: Do not adjust pulley further than 5 turns open.
--- Factory settings
33
50KC
UNIT
ELECTRICAL INFORMATION
50KC
Table 32 – 50KC-- *04
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
V--- Ph--- Hz
UNIT VOLTAGE
RANGE
MIN
MAX
208 ---1 ---60
187
230 ---1 ---60
COMP 1
OFM (ea)
RLA
LRA
253
16.6
79
187
253
16.6
79
208 ---3 ---60
187
253
10.4
73
230 ---3 ---60
187
253
10.4
73
460 ---3 ---60
414
506
5.8
38
575 ---3 ---60
518
633
3.8
37
Table 33 – 50KC-- *05
V--- Ph--- Hz
TYPE
EFF at Full Load
FLA
190
190
190
190
190
190
190
190
190
190
190
190
190
190
190
190
190
190
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
0.5
0.5
0.5
0.5
0.5
0.5
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
78%
67%
76%
78%
67%
76%
78%
87%
89%
78%
87%
89%
78%
87%
89%
78%
72%
77%
7.4
4.9
7.0
7.4
4.9
7.0
7.4
5.2
8.4
7.4
4.9
8.3
4.0
2.5
4.2
4.0
1.6
2.8
208 ---1 ---60
187
230 ---1 ---60
OFM (ea)
LRA
253
21.8
117
187
253
21.8
117
208 ---3 ---60
187
253
13.7
83
230 ---3 ---60
187
253
13.7
83
460 ---3 ---60
414
506
6.2
41
575 ---3 ---60
518
633
4.8
33
V--- Ph--- Hz
FLA
COMP 1
RLA
Table 34 – 50KC-- *06
WATTS
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
UNIT VOLTAGE
RANGE
MIN
MAX
WATTS
FLA
TYPE
EFF at Full Load
FLA
325
325
325
325
325
325
325
325
325
325
325
325
325
325
325
325
325
325
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
1.5
0.8
0.8
0.8
0.6
0.6
0.6
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
78%
67%
76%
78%
67%
76%
78%
87%
89%
78%
87%
89%
78%
87%
89%
78%
72%
77%
7.4
4.9
7.0
7.4
4.9
7.0
7.4
5.2
8.4
7.4
4.9
8.3
4.0
2.5
4.2
4.0
1.6
2.8
COMP 1
RLA
OFM (ea)
LRA
208 ---1 ---60
187
253
25.0
134
230 ---1 ---60
187
253
25.0
134
208 ---3 ---60
187
253
15.9
110
230 ---3 ---60
187
253
15.9
110
460 ---3 ---60
414
506
7.0
52
575 ---3 ---60
518
633
5.1
40
4 TONS
IFM
SINGLE STAGE COOLING WITH SINGLE SPEED INDOOR FAN MOTOR
UNIT VOLTAGE
RANGE
MIN
MAX
3 TONS
IFM
IFM
5 TONS
IFM
WATTS
FLA
TYPE
EFF at Full Load
FLA
325
325
325
325
325
325
325
325
325
325
325
325
325
325
325
325
325
325
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
1.4
0.9
0.9
0.9
0.9
0.9
0.9
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
DD ---STD
MED
HIGH
78%
67%
76%
78%
67%
76%
78%
89%
89%
78%
89%
89%
78%
89%
89%
78%
77%
77%
7.4
4.9
7.0
7.4
4.9
7.0
7.4
8.4
8.4
7.4
8.3
8.3
4.0
4.2
4.2
4.0
2.8
2.8
34
ELECTRIC HEAT -- ELECTRICAL INFORMATION
NOM.
V ---PH ---Hz.
IFM
TYPE
DD--- STD
208/230--- 1--- 60
MED
HIGH
DD--- STD
208/230--- 3--- 60
MED
HIGH
DD--- STD
460--- 3--- 60
MED
HIGH
LEGEND:
--APP PWR
C.O.
IFM
NA
NOM PWR
P.E.
PWRD
UNPWRD
-------------------
WITHOUT FACTORY INSTALLED NON-- FUSED DISCONNECT
ELECTRIC HEATER
PART NUMBER
CRHEATERXXXXXX
NOM
PWR
(kW)
APP
PWR
(kW)
101A00
4.4
102A00
6.5
103B00
8.7
SINGLE POINT KIT PART NUMBER
CRSINGLEXXXXXX
NO C.O. or UNPWRD C.O.
w/PWRD C.O.
NO P.E.
w/P.E.
(pwrd fr/unit)
NO P.E.
w/P.E.
(pwrd fr/unit)
3.3/4.0
---
---
NA
NA
4.9/6.0
---
---
NA
NA
6.5/8.0
037
037
NA
NA
104B00
10.5
7.9/9.6
040
040
NA
NA
102A00,102A00
13.0
9.8/11.9
040
040
NA
NA
101A00
4.4
3.3/4.0
---
---
NA
NA
102A00
6.5
4.9/6.0
---
---
NA
NA
103B00
8.7
6.5/8.0
037
037
NA
NA
104B00
10.5
7.9/9.6
040
040
NA
NA
102A00,102A00
13.0
9.8/11.9
040
040
NA
NA
101A00
4.4
3.3/4.0
---
---
NA
NA
102A00
6.5
4.9/6.0
---
---
NA
NA
103B00
8.7
6.5/8.0
037
037
NA
NA
104B00
10.5
7.9/9.6
040
040
NA
NA
102A00,102A00
13.0
9.8/11.9
040
040
NA
NA
101A00
4.4
3.3/4.0
---
---
---
---
102A00
6.5
4.9/6.0
---
---
---
---
103B00
8.7
6.5/8.0
---
---
---
---
104B00
10.5
7.9/9.6
---
---
---
---
105A00
16.0
12.0/14.7
037
037
038
038
101A00
4.4
3.3/4.0
---
---
---
---
102A00
6.5
4.9/6.0
---
---
---
---
103B00
8.7
6.5/8.0
---
---
---
---
104B00
10.5
7.9/9.6
---
---
---
---
105A00
16.0
12.0/14.7
037
037
038
038
101A00
4.4
3.3/4.0
---
---
---
---
102A00
6.5
4.9/6.0
---
---
---
---
103B00
8.7
6.5/8.0
---
---
---
---
104B00
10.5
7.9/9.6
---
---
---
037
105A00
16.0
12.0/14.7
037
038
038
038
106A00
6.0
5.5
---
---
---
---
107A00
8.8
8.1
---
---
---
---
108A00
11.5
10.6
---
---
---
---
109A00
14.0
12.9
---
---
---
---
106A00
6.0
5.5
---
---
---
---
107A00
8.8
8.1
---
---
---
---
108A00
11.5
10.6
---
---
---
---
109A00
14.0
12.9
---
---
---
---
106A00
6.0
5.5
---
---
---
---
107A00
8.8
8.1
---
---
---
---
108A00
11.5
10.6
---
---
---
---
109A00
14.0
12.9
---
---
---
---
No Single Point Kit required
208 / 230V / 460V / 575V
Convenience outlet
Indoor fan motor
Not Available
240V / 480V / 600V
Power exhaust
Powered convenience outlet
Unpowered convenience outlet
35
50KC
Table 35 – 50KC**04
ELECTRIC HEAT -- ELECTRICAL INFORMATION
Table 36 – 50KC**05
NOM.
V ---PH ---Hz.
IFM
TYPE
DD--- STD
MED
50KC
208/230--- 1--- 60
HIGH
DD--- STD
208/230--- 3--- 60
MED
HIGH
DD--- STD
460--- 3--- 60
MED
HIGH
LEGEND:
--APP PWR
C.O.
IFM
NA
NOM PWR
P.E.
PWRD
UNPWRD
-------------------
WITHOUT FACTORY INSTALLED NON-- FUSED DISCONNECT
ELECTRIC HEATER
PART NUMBER
CRHEATERXXXXXX
NOM
PWR
(kW)
APP
PWR
(kW)
SINGLE POINT KIT PART NUMBER
CRSINGLEXXXXXX
NO C.O. or UNPWRD C.O.
NO P.E.
w/PWRD C.O.
w/P.E.
(pwrd fr/unit)
NO P.E.
w/P.E.
(pwrd fr/unit)
101A00
4.4
3.3/4.0
---
---
NA
NA
103B00
8.7
6.5/8.0
037
037
NA
NA
102A00,102A00
13.0
9.8/11.9
040
040
NA
NA
103B00,103B00
17.4
13.1/16.0
040
040
NA
NA
104B00,104B00
21.0
15.8/19.3
040
040
NA
NA
101A00
4.4
3.3/4.0
---
---
NA
NA
103B00
8.7
6.5/8.0
037
037
NA
NA
102A00,102A00
13.0
9.8/11.9
040
040
NA
NA
103B00,103B00
17.4
13.1/16.0
040
040
NA
NA
104B00,104B00
21.0
15.8/19.3
040
040
NA
NA
101A00
4.4
3.3/4.0
---
---
NA
NA
103B00
8.7
6.5/8.0
037
037
NA
NA
102A00,102A00
13.0
9.8/11.9
040
040
NA
NA
103B00,103B00
17.4
13.1/16.0
040
040
NA
NA
104B00,104B00
21.0
15.8/19.3
040
040
NA
NA
102A00
6.5
4.9/6.0
---
---
---
---
103B00
8.7
6.5/8.0
---
---
---
---
105A00
16.0
12.0/14.7
037
037
038
038
104B00,104B00
21.0
15.8/19.3
038
038
038
038
102A00
6.5
4.9/6.0
---
---
---
---
103B00
8.7
6.5/8.0
---
---
---
---
105A00
16.0
12.0/14.7
037
037
038
038
104B00,104B00
21.0
15.8/19.3
038
038
038
038
102A00
6.5
4.9/6.0
---
---
---
---
103B00
8.7
6.5/8.0
---
---
---
---
105A00
16.0
12.0/14.7
037
038
038
038
104B00,104B00
21.0
15.8/19.3
038
038
038
038
106A00
6.0
5.5
---
---
---
---
108A00
11.5
10.6
---
---
---
---
109A00
14.0
12.9
---
---
---
---
108A00,108A00
23.0
21.1
037
037
037
037
106A00
6.0
5.5
---
---
---
---
108A00
11.5
10.6
---
---
---
---
109A00
14.0
12.9
---
---
---
---
108A00,108A00
23.0
21.1
037
037
037
037
106A00
6.0
5.5
---
---
---
---
108A00
11.5
10.6
---
---
---
---
109A00
14.0
12.9
---
---
---
---
108A00,108A00
23.0
21.1
037
037
037
037
No Single Point Kit required
208 / 230V / 460V / 575V
Convenience outlet
Indoor fan motor
Not Available
240V / 480V / 600V
Power exhaust
Powered convenience outlet
Unpowered convenience outlet
36
ELECTRIC HEAT -- ELECTRICAL INFORMATION
NOM.
V ---PH ---Hz.
208/230--- 3--- 60
460--- 3--- 60
LEGEND:
--APP PWR
C.O.
IFM
NA
NOM PWR
P.E.
PWRD
UNPWRD
ELECTRIC HEATER
PART NUMBER
CRHEATERXXXXXX
NOM
PWR
(kW)
APP
PWR
(kW)
DD--- STD
102A00
103B00
102A00,102A00
103B00,103B00
104B00,104B00
6.5
8.7
13.0
17.4
21.0
MED
102A00
103B00
102A00,102A00
103B00,103B00
104B00,104B00
IFM
TYPE
208/230--- 1--- 60
-------------------
WITHOUT FACTORY INSTALLED NON-- FUSED DISCONNECT
SINGLE POINT KIT PART NUMBER
CRSINGLEXXXXXX
NO C.O. or UNPWRD C.O.
w/PWRD C.O.
NO P.E.
w/P.E.
(pwrd fr/unit)
NO P.E.
w/P.E.
(pwrd fr/unit)
4.9/6.0
6.5/8.0
9.8/11.9
13.1/16.0
15.8/19.3
--037
040
040
040
--037
040
040
040
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
6.5
8.7
13.0
17.4
21.0
4.9/6.0
6.5/8.0
9.8/11.9
13.1/16.0
15.8/19.3
--037
040
040
040
--037
040
040
040
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
HIGH
102A00
103B00
102A00,102A00
103B00,103B00
104B00,104B00
6.5
8.7
13.0
17.4
21.0
4.9/6.0
6.5/8.0
9.8/11.9
13.1/16.0
15.8/19.3
--037
040
040
040
--037
040
040
040
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
DD--- STD
102A00
104B00
105A00
104B00,104B00
104B00,105A00
6.5
10.5
16.0
21.0
26.5
4.9/6.0
7.9/9.6
12.0/14.7
15.8/19.3
19.9/24.3
----037
038
038
----037
038
038
----038
038
038
----038
038
038
MED
102A00
104B00
105A00
104B00,104B00
104B00,105A00
6.5
10.5
16.0
21.0
26.5
4.9/6.0
7.9/9.6
12.0/14.7
15.8/19.3
19.9/24.3
----037
038
038
----038
038
038
----038
038
038
--037
038
038
038
HIGH
102A00
104B00
105A00
104B00,104B00
104B00,105A00
6.5
10.5
16.0
21.0
26.5
4.9/6.0
7.9/9.6
12.0/14.7
15.8/19.3
19.9/24.3
----037
038
038
----038
038
038
----038
038
038
--037
038
038
038
DD--- STD
106A00
108A00
109A00
108A00,108A00
108A00,109A00
6.0
11.5
14.0
23.0
25.5
5.5
10.6
12.9
21.1
23.4
------037
037
------037
037
------037
037
------037
037
MED
106A00
108A00
109A00
108A00,108A00
108A00,109A00
6.0
11.5
14.0
23.0
25.5
5.5
10.6
12.9
21.1
23.4
------037
037
------037
037
------037
037
------037
037
HIGH
106A00
108A00
109A00
108A00,108A00
108A00,109A00
6.0
11.5
14.0
23.0
25.5
5.5
10.6
12.9
21.1
23.4
------037
037
------037
037
------037
037
------037
037
No Single Point Kit required
208 / 230V / 460V / 575V
Convenience outlet
Indoor fan motor
Not Available
240V / 480V / 600V
Power exhaust
Powered convenience outlet
Unpowered convenience outlet
37
50KC
Table 37 – 50KC**06
ELECTRIC HEAT -- ELECTRICAL INFORMATION
Table 38 – 50KC**04
NOM.
V ---PH ---Hz.
IFM
TYPE
DD--- STD
MED
50KC
208/230--- 1--- 60
HIGH
DD--- STD
208/230--- 3--- 60
MED
HIGH
DD--- STD
460--- 3--- 60
MED
HIGH
LEGEND:
--APP PWR
C.O.
IFM
NA
NOM PWR
P.E.
PWRD
UNPWRD
-------------------
WITH FACTORY INSTALLED NON-- FUSED DISCONNECT
ELECTRIC HEATER
PART NUMBER
CRHEATERXXXXXX
NOM
PWR
(kW)
APP
PWR
(kW)
101A00
4.4
102A00
6.5
103B00
8.7
SINGLE POINT KIT PART NUMBER
CRSINGLEXXXXXX
NO C.O. or UNPWRD C.O.
w/PWRD C.O.
NO P.E.
w/P.E.
(pwrd fr/unit)
NO P.E.
w/P.E.
(pwrd fr/unit)
3.3/4.0
037
037
NA
NA
4.9/6.0
037
037
NA
NA
6.5/8.0
037
037
NA
NA
104B00
10.5
7.9/9.6
040
040
NA
NA
102A00,102A00
13.0
9.8/11.9
040
040
NA
NA
101A00
4.4
3.3/4.0
037
037
NA
NA
102A00
6.5
4.9/6.0
037
037
NA
NA
103B00
8.7
6.5/8.0
037
037
NA
NA
104B00
10.5
7.9/9.6
040
040
NA
NA
102A00,102A00
13.0
9.8/11.9
040
040
NA
NA
101A00
4.4
3.3/4.0
037
037
NA
NA
102A00
6.5
4.9/6.0
037
037
NA
NA
103B00
8.7
6.5/8.0
037
037
NA
NA
104B00
10.5
7.9/9.6
040
040
NA
NA
102A00,102A00
13.0
9.8/11.9
040
040
NA
NA
101A00
4.4
3.3/4.0
037
037
037
037
102A00
6.5
4.9/6.0
037
037
037
037
103B00
8.7
6.5/8.0
037
037
037
037
104B00
10.5
7.9/9.6
037
037
037
037
105A00
16.0
12.0/14.7
037
037
038
038
101A00
4.4
3.3/4.0
037
037
037
037
102A00
6.5
4.9/6.0
037
037
037
037
103B00
8.7
6.5/8.0
037
037
037
037
104B00
10.5
7.9/9.6
037
037
037
037
105A00
16.0
12.0/14.7
037
037
038
038
101A00
4.4
3.3/4.0
037
037
037
037
102A00
6.5
4.9/6.0
037
037
037
037
103B00
8.7
6.5/8.0
037
037
037
037
104B00
10.5
7.9/9.6
037
037
037
037
105A00
16.0
12.0/14.7
037
038
038
038
106A00
6.0
5.5
---
---
---
---
107A00
8.8
8.1
---
---
---
---
108A00
11.5
10.6
---
---
---
---
109A00
14.0
12.9
---
---
---
---
106A00
6.0
5.5
---
---
---
---
107A00
8.8
8.1
---
---
---
---
108A00
11.5
10.6
---
---
---
---
109A00
14.0
12.9
---
---
---
---
106A00
6.0
5.5
---
---
---
---
107A00
8.8
8.1
---
---
---
---
108A00
11.5
10.6
---
---
---
---
109A00
14.0
12.9
---
---
---
---
No Single Point Kit required
208 / 230V / 460V / 575V
Convenience outlet
Indoor fan motor
Not Available
240V / 480V / 600V
Power exhaust
Powered convenience outlet
Unpowered convenience outlet
38
ELECTRIC HEAT -- ELECTRICAL INFORMATION
NOM.
V ---PH ---Hz.
IFM
TYPE
DD--- STD
208/230--- 1--- 60
MED
HIGH
DD--- STD
208/230--- 3--- 60
MED
HIGH
DD--- STD
460--- 3--- 60
MED
HIGH
LEGEND:
--APP PWR
C.O.
IFM
NA
NOM PWR
P.E.
PWRD
UNPWRD
-------------------
WITH FACTORY INSTALLED NON-- FUSED DISCONNECT
ELECTRIC HEATER
PART NUMBER
CRHEATERXXXXXX
NOM
PWR
(kW)
APP
PWR
(kW)
SINGLE POINT KIT PART NUMBER
CRSINGLEXXXXXX
NO C.O. or UNPWRD C.O.
w/PWRD C.O.
NO P.E.
w/P.E.
(pwrd fr/unit)
NO P.E.
w/P.E.
(pwrd fr/unit)
101A00
4.4
3.3/4.0
037
037
NA
NA
103B00
8.7
6.5/8.0
037
037
NA
NA
102A00,102A00
13.0
9.8/11.9
040
040
NA
NA
103B00,103B00
17.4
13.1/16.0
040
040
NA
NA
104B00,104B00
21.0
15.8/19.3
040
040
NA
NA
101A00
4.4
3.3/4.0
037
037
NA
NA
103B00
8.7
6.5/8.0
037
037
NA
NA
102A00,102A00
13.0
9.8/11.9
040
040
NA
NA
103B00,103B00
17.4
13.1/16.0
040
040
NA
NA
104B00,104B00
21.0
15.8/19.3
040
040
NA
NA
101A00
4.4
3.3/4.0
037
037
NA
NA
103B00
8.7
6.5/8.0
037
037
NA
NA
102A00,102A00
13.0
9.8/11.9
040
040
NA
NA
103B00,103B00
17.4
13.1/16.0
040
040
NA
NA
104B00,104B00
21.0
15.8/19.3
040
040
NA
NA
102A00
6.5
4.9/6.0
037
037
037
037
103B00
8.7
6.5/8.0
037
037
037
037
105A00
16.0
12.0/14.7
037
037
038
038
104B00,104B00
21.0
15.8/19.3
038
038
038
038
102A00
6.5
4.9/6.0
037
037
037
037
103B00
8.7
6.5/8.0
037
037
037
037
105A00
16.0
12.0/14.7
037
037
038
038
104B00,104B00
21.0
15.8/19.3
038
038
038
038
102A00
6.5
4.9/6.0
037
037
037
037
103B00
8.7
6.5/8.0
037
037
037
037
105A00
16.0
12.0/14.7
037
038
038
038
104B00,104B00
21.0
15.8/19.3
038
038
038
038
106A00
6.0
5.5
---
---
---
---
108A00
11.5
10.6
---
---
---
---
109A00
14.0
12.9
---
---
---
---
108A00,108A00
23.0
21.1
037
037
037
037
106A00
6.0
5.5
---
---
---
---
108A00
11.5
10.6
---
---
---
---
109A00
14.0
12.9
---
---
---
---
108A00,108A00
23.0
21.1
037
037
037
037
106A00
6.0
5.5
---
---
---
---
108A00
11.5
10.6
---
---
---
---
109A00
14.0
12.9
---
---
---
---
108A00,108A00
23.0
21.1
037
037
037
037
No Single Point Kit required
208 / 230V / 460V / 575V
Convenience outlet
Indoor fan motor
Not Available
240V / 480V / 600V
Power exhaust
Powered convenience outlet
Unpowered convenience outlet
39
50KC
Table 39 – 50KC**05
ELECTRIC HEAT -- ELECTRICAL INFORMATION
Table 40 – 50KC**06
NOM.
V ---PH ---Hz.
ELECTRIC HEATER
PART NUMBER
CRHEATERXXXXXX
NOM
PWR
(kW)
APP
PWR
(kW)
DD--- STD
102A00
103B00
102A00,102A00
103B00,103B00
104B00,104B00
6.5
8.7
13.0
17.4
21.0
MED
102A00
103B00
102A00,102A00
103B00,103B00
104B00,104B00
IFM
TYPE
208/230--- 3--- 60
460--- 3--- 60
LEGEND:
--APP PWR
C.O.
IFM
NA
NOM PWR
P.E.
PWRD
UNPWRD
-------------------
SINGLE POINT KIT PART NUMBER
CRSINGLEXXXXXX
NO C.O. or UNPWRD C.O.
w/PWRD C.O.
NO P.E.
w/P.E.
(pwrd fr/unit)
NO P.E.
w/P.E.
(pwrd fr/unit)
4.9/6.0
6.5/8.0
9.8/11.9
13.1/16.0
15.8/19.3
037
037
040
040
040
037
037
040
040
040
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
6.5
8.7
13.0
17.4
21.0
4.9/6.0
6.5/8.0
9.8/11.9
13.1/16.0
15.8/19.3
037
037
040
040
040
037
037
040
040
040
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
HIGH
102A00
103B00
102A00,102A00
103B00,103B00
104B00,104B00
6.5
8.7
13.0
17.4
21.0
4.9/6.0
6.5/8.0
9.8/11.9
13.1/16.0
15.8/19.3
037
037
040
040
040
037
037
040
040
040
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
DD--- STD
102A00
104B00
105A00
104B00,104B00
104B00,105A00
6.5
10.5
16.0
21.0
26.5
4.9/6.0
7.9/9.6
12.0/14.7
15.8/19.3
19.9/24.3
037
037
037
038
038
037
037
037
038
038
037
037
038
038
038
037
037
038
038
038
MED
102A00
104B00
105A00
104B00,104B00
104B00,105A00
6.5
10.5
16.0
21.0
26.5
4.9/6.0
7.9/9.6
12.0/14.7
15.8/19.3
19.9/24.3
037
037
037
038
038
037
037
038
038
038
037
037
038
038
038
037
037
038
038
038
HIGH
102A00
104B00
105A00
104B00,104B00
104B00,105A00
6.5
10.5
16.0
21.0
26.5
4.9/6.0
7.9/9.6
12.0/14.7
15.8/19.3
19.9/24.3
037
037
037
038
038
037
037
038
038
038
037
037
038
038
038
037
037
038
038
038
DD--- STD
106A00
108A00
109A00
108A00,108A00
108A00,109A00
6.0
11.5
14.0
23.0
25.5
5.5
10.6
12.9
21.1
23.4
------037
037
------037
037
------037
037
------037
037
MED
106A00
108A00
109A00
108A00,108A00
108A00,109A00
6.0
11.5
14.0
23.0
25.5
5.5
10.6
12.9
21.1
23.4
------037
037
------037
037
------037
037
------037
037
HIGH
106A00
108A00
109A00
108A00,108A00
108A00,109A00
6.0
11.5
14.0
23.0
25.5
5.5
10.6
12.9
21.1
23.4
------037
037
------037
037
------037
037
------037
037
50KC
208/230--- 1--- 60
WITH FACTORY INSTALLED NON-- FUSED DISCONNECT
No Single Point Kit required
208 / 230V / 460V / 575V
Convenience outlet
Indoor fan motor
Not Available
240V / 480V / 600V
Power exhaust
Powered convenience outlet
Unpowered convenience outlet
40
41
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
9.8/13.0
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
9.8/13.0
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
9.8/13.0
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
12.0/16.0
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
12.0/16.0
--3.3/4.4
4.9/6.5
6.5/8.7
7.9/10.5
12.0/16.0
CRHEATER***A00
NONE
101A
102A
103B
104B
102A+102A
NONE
101A
102A
103B
104B
102A+102A
NONE
101A
102A
103B
104B
102A+102A
NONE
101A
102A
103B
104B
105A
NONE
101A
102A
103B
104B
105A
NONE
101A
102A
103B
104B
105A
MED
HIGH
MED
HIGH
See “Legend and Notes for Table 41 on page 47.
DD ---STD
DD ---STD
Nom
(kW)
IFM
TYPE
ELEC. HTR
--9.2/10.6
13.6/15.6
18.1/20.9
21.9/25.3
33.4/38.5
--9.2/10.6
13.6/15.6
18.1/20.9
21.9/25.3
33.4/38.5
--9.2/10.6
13.6/15.6
18.1/20.9
21.9/25.3
33.4/38.5
--15.9/18.3
23.5/27.1
31.4/36.3
37.9/43.8
46.9/54.2
--15.9/18.3
23.5/27.1
31.4/36.3
37.9/43.8
46.9/54.2
--15.9/18.3
23.5/27.1
31.4/36.3
37.9/43.8
46.9/54.2
FLA
23/23
23/24
28/30
34/37
38/42
53/59
20/19
20/20
24/26
30/33
34/38
49/55
22
22/23
27/29
32/36
37/41
51/58
29
29/32
39/43
48/55
57/64
68/77
27
27/29
36/40
46/52
54/61
65/74
30
30/33
39/44
49/55
57/64
68/77
MCA
30/30
30/30
30/30
35/40
40/45
60/60
25/25
25/25
25/30
30/35
35/40
50/60
30
30/30
30/30
35/40
40/45
60/60
45
45/45
45/45
50/60
60/70
70/80
40
40/40
40/45
50/60
60/70
70/80
45
45/45
45/45
50/60
60/70
70/80
FLA
23/23
23/23
25/27
30/34
35/39
48/54
19/19
19/19
22/24
27/30
31/35
44/50
22
22/22
24/26
29/33
34/38
47/53
28
28/29
35/39
44/50
52/58
62/70
26
26/27
33/37
42/47
49/56
60/68
147
147/147
147/147
147/147
147/147
147/147
111
111/111
111/111
111/111
111/111
111/111
82
82/82
82/82
82/82
82/82
82/82
118
118/118
118/118
118/118
118/118
118/118
93
93/93
93/93
93/93
93/93
93/93
88
88/88
88/88
88/88
88/88
88/88
LRA
DISC. SIZE
29
29/30
36/40
45/50
52/59
62/71
NO P.E.
MAX
FUSE or
HACR
BRKR
25/25
25/26
30/33
36/39
41/45
55/61
22/21
22/22
26/28
32/35
37/41
51/57
24
24/25
29/32
35/38
39/44
54/60
31
31/34
41/45
51/57
59/66
70/79
29
29/32
38/43
48/54
56/64
68/77
32
32/35
41/46
51/57
59/67
71/80
MCA
NO C.O. or UNPWR C.O.
30/30
30/30
30/35
40/40
45/45
60/70
30/30
30/30
30/30
35/35
40/45
60/60
30
30/30
30/35
35/40
40/45
60/60
45
45/45
45/50
60/60
60/70
70/80
45
45/45
45/45
50/60
60/70
70/80
45
45/45
45/50
60/60
60/70
80/80
MAX
FUSE or
HACR
BRKR
25/25
25/25
27/30
33/36
37/41
50/56
21/21
21/21
24/26
29/32
33/37
47/52
24
24/24
26/29
32/35
36/40
49/55
30
30/31
37/41
46/52
54/61
64/73
28
28/29
35/39
44/50
51/58
62/70
31
31/32
38/42
47/52
54/61
65/73
FLA
149
149/149
149/149
149/149
149/149
149/149
113
113/113
113/113
113/113
113/113
113/113
84
84/84
84/84
84/84
84/84
84/84
120
120/120
120/120
120/120
120/120
120/120
95
95/95
95/95
95/95
95/95
95/95
90
90/90
90/90
90/90
90/90
90/90
LRA
DISC. SIZE
w/ P.E. (pwrd fr/unit)
ELECTRICAL INFORMATION
Table 41 – UNIT WIRE/FUSE OR HACR BREAKER SIZING DATA
UNIT
50KC---*04
NO M. V---Ph---HZ
208/230--- 1--- 60
208/230--- 3--- 60
28/28
28/30
34/36
40/43
44/48
59/65
24/24
24/26
30/32
36/39
40/44
55/61
27
27/29
33/35
38/42
43/47
57/64
-------------
-------------
-------------
MCA
NO P.E.
48HC
50KC
30/30
30/30
35/40
40/45
45/50
60/70
30/30
30/30
30/35
40/40
40/45
60/70
30
30/30
35/35
40/45
45/50
60/70
-------------
-------------
-------------
MAX
FUSE or
HACR
BRKR
28/28
28/28
31/33
36/39
40/44
54/59
25/24
25/24
27/29
32/35
37/40
50/55
27
27/27
30/32
35/38
39/43
52/58
-------------
-------------
-------------
FLA
152
152/152
152/152
152/152
152/152
152/152
116
116/116
116/116
116/116
116/116
116/116
87
87/87
87/87
87/87
87/87
87/87
-------------
-------------
-------------
LRA
DISC. SIZE
30/29
31/32
36/39
42/45
47/51
61/67
26/26
27/28
32/34
38/41
43/47
57/63
29
30/31
35/38
41/44
45/50
60/66
-------------
-------------
-------------
MCA
w/ PWRD C.O.
35/35
35/35
40/40
45/45
50/60
70/70
30/30
30/30
35/35
40/45
45/50
60/70
35
35/35
35/40
45/45
50/50
60/70
-------------
-------------
-------------
MAX
FUSE or
HACR
BRKR
30/30
30/30
33/35
38/41
43/46
56/62
27/26
27/26
29/31
35/37
39/42
52/58
29
29/29
32/34
37/40
41/45
55/60
-------------
-------------
-------------
FLA
154
154/154
154/154
154/154
154/154
154/154
118
118/118
118/118
118/118
118/118
118/118
89
89/89
89/89
89/89
89/89
89/89
-------------
-------------
-------------
LRA
DISC. SIZE
w/ P.E. (pwrd fr/unit)
42
UNIT
---
6.0
8.8
11.5
14.0
---
6.0
8.8
11.5
14.0
109A
NONE
106A
107A
108A
109A
NONE
106A
107A
108A
109A
NONE
14.0
108A
HIGH
11.5
107A
NONE
8.8
106A
MED
6.0
NONE
---
---
---
---
CRHEATER***A00
NONE
Nom
(kW)
DD ---STD
HIGH
MED
DD ---STD
IFM
TYPE
ELEC. HTR
See “Legend and Notes for Table 41 on page 47.
50KC--- *04
NO M. V---Ph---HZ
460---3---60
575---3--- 60
---
---
---
16.8
13.8
10.6
7.2
---
16.8
13.8
10.6
7.2
---
16.8
13.8
10.6
7.2
---
FLA
9
7
10
27
23
19
15
12
25
21
17
13
11
26
23
19
14
12
MCA
NO P.E.
15
15
15
30
25
20
15
15
25
25
20
15
15
30
25
20
15
15
MAX
FUSE or
HACR
BRKR
8
7
10
24
21
17
13
12
22
19
15
11
10
24
20
17
13
12
FLA
60
45
42
75
75
75
75
75
57
57
57
57
57
43
43
43
43
43
LRA
DISC. SIZE
10
9
12
28
24
20
16
13
26
22
18
14
12
28
24
20
16
13
MCA
NO C.O. or UNPWR C.O.
15
15
15
30
25
20
20
15
30
25
20
15
15
30
25
20
20
15
MAX
FUSE or
HACR
BRKR
10
9
12
25
22
18
14
13
23
20
16
12
11
25
22
18
14
13
FLA
62
47
44
76
76
76
76
76
58
58
58
58
58
44
44
44
44
44
LRA
DISC. SIZE
w/ P.E. (pwrd fr/unit)
10
9
11
29
26
22
17
15
27
24
20
15
13
29
25
21
17
14
MCA
Table 41 – Unit Wire/Fuse or HACR Breaker Sizing Data (cont)
ELECTRICAL INFORMATION
15
15
15
30
30
25
20
20
30
25
20
15
15
30
25
25
20
20
MAX
FUSE or
HACR
BRKR
NO P.E.
48HC
50KC
10
9
12
27
23
20
16
15
25
21
18
14
13
26
23
19
15
14
FLA
62
47
44
77
77
77
77
77
59
59
59
59
59
45
45
45
45
45
LRA
DISC. SIZE
12
11
13
31
27
23
19
16
29
25
21
17
14
30
27
23
18
15
MCA
w/ PWRD C.O.
15
15
15
35
30
25
20
20
30
25
25
20
15
30
30
25
20
20
MAX
FUSE or
HACR
BRKR
12
11
14
28
24
21
17
16
26
22
19
15
14
28
24
20
17
16
FLA
64
49
46
78
78
78
78
78
60
60
60
60
60
46
46
46
46
46
LRA
DISC. SIZE
w/ P.E. (pwrd fr/unit)
43
UNIT
HIGH
MED
DD ---STD
HIGH
MED
DD ---STD
IFM
TYPE
103B+103B
75.8/87.5
62.8/72.5
46.9/54.2
15.8/21.0
104B+104B
102A
6.5/8.7
4.9/6.5
NONE
12.0/16.0
---
104B+104B
105A
15.8/21.0
105A
103B
6.5/8.7
12.0/16.0
103B
43.8/50.5
33.4/38.5
18.1/20.9
13.6/15.6
---
43.8/50.5
33.4/38.5
18.1/20.9
13.6/15.6
---
43.8/50.5
33.4/38.5
18.1/20.9
4.9/6.5
13.1/17.4
102A+102A
31.4/36.3
102A
9.8/13.0
103B
15.9/18.3
---
6.5/8.7
101A
---
NONE
3.3/4.4
NONE
75.8/87.5
15.8/21.0
---
104B+104B
62.8/72.5
104B+104B
15.8/21.0
103B+103B
46.9/54.2
12.0/16.0
13.1/17.4
102A+102A
31.4/36.3
105A
9.8/13.0
103B
15.9/18.3
13.6/15.6
6.5/8.7
101A
---
6.5/8.7
3.3/4.4
NONE
75.8/87.5
4.9/6.5
---
104B+104B
62.8/72.5
102A
15.8/21.0
103B+103B
46.9/54.2
103B
13.1/17.4
102A+102A
31.4/36.3
---
9.8/13.0
103B
15.9/18.3
---
6.5/8.7
101A
---
NONE
3.3/4.4
NONE
FLA
15.8/21.0
---
CRHEATER***A00
104B+104B
Nom
(kW)
ELEC. HTR
See “Legend and Notes for Table 41 on page 47.
50KC---*05
NO M. V---Ph---HZ
208/230--- 1---60
208/230 ---3---60
66/74
53/59
34/37
28/30
27/27
62/70
49/55
30/33
24/26
24/24
64/73
51/58
32/36
27/29
26
104/119
88/100
68/77
48/55
36/36
36
101/116
85/97
65/74
46/52
34/34
34
104/119
88/100
68/77
49/55
37/37
37
MCA
70/80
60/60
40/40
40/40
40/40
70/70
50/60
30/35
30/30
30/30
70/80
60/60
35/40
30/30
30
110/125
90/100
70/80
50/60
50/50
50
110/125
90/100
70/80
50/60
50/50
50
110/125
90/100
70/80
50/60
50/50
50
35
FLA
60/68
48/54
30/34
27/27
27/27
56/64
44/50
27/30
23/24
23/23
59/67
47/53
29/33
26/26
26
95/109
80/91
62/70
44/50
35/35
35
93/106
78/89
60/68
42/47
32/32
32
96/109
81/92
62/71
45/50
159/159
159/159
159/159
159/159
159
123/123
123/123
123/123
123/123
123
94/94
94/94
94/94
94/94
94
158/158
158/158
158/158
158/158
158/158
158
133/133
133/133
133/133
133/133
133/133
133
128/128
128/128
128/128
128/128
128/128
128
LRA
DISC. SIZE
35/35
NO P.E.
MAX
FUSE or
HACR
BRKR
68/76
55/61
36/39
30/33
29/29
64/72
51/57
32/35
26/28
26/26
67/75
54/60
35/38
29/32
28
106/121
90/102
70/79
51/57
38/38
38
104/118
87/100
68/77
48/54
36/36
36
107/121
91/103
71/80
51/57
39/39
39
MCA
NO C.O. or UNPWR C.O.
70/80
60/70
40/40
40/40
40/40
70/80
60/60
35/35
30/30
30/30
70/80
60/60
40/40
40/40
40
110/125
90/110
70/80
60/60
50/50
50
110/125
90/100
70/80
50/60
50/50
50
110/125
100/110
80/80
60/60
50/50
50
MAX
FUSE or
HACR
BRKR
62/70
50/56
33/36
29/30
29/29
59/66
47/52
29/32
26/26
26/25
61/69
49/55
32/35
28/29
28
97/111
82/94
64/73
46/52
37/37
37
95/108
80/91
62/70
44/50
35/35
35
98/111
83/94
65/73
47/52
37/37
37
FLA
161/161
161/161
161/161
161/161
161
125/125
125/125
125/125
125/125
125
96/96
96/96
96/96
96/96
96
160/160
160/160
160/160
160/160
160/160
160
135/135
135/135
135/135
135/135
135/135
135
130/130
130/130
130/130
130/130
130/130
130
LRA
DISC. SIZE
w/ P.E. (pwrd fr/unit)
72/80
59/65
40/43
34/36
32/32
68/76
55/61
36/39
30/32
29/29
70/79
57/64
38/42
33/35
31
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
MCA
NO P.E.
80/80
60/70
45/45
45/45
45/45
70/80
60/70
40/40
40/40
40/40
80/80
60/70
40/45
40/40
40
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
MAX
FUSE or
HACR
BRKR
48HC
50KC
Table 41 – Unit Wire/Fuse or HACR Breaker Sizing Data (cont)
ELECTRICAL INFORMATION
66/73
54/59
36/39
33/33
33/33
62/69
50/55
32/35
29/29
29/29
64/72
52/58
35/38
32/32
32
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
FLA
164/164
164/164
164/164
164/164
164
128/128
128/128
128/128
128/128
128
99/99
99/99
99/99
99/99
99
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
LRA
DISC. SIZE
74/82
61/67
42/45
36/39
34/34
70/78
57/63
38/41
32/34
31/31
73/81
60/66
41/44
35/38
33
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
MCA
w/ PWRD C.O.
80/90
70/70
45/45
45/45
45/45
70/80
60/70
40/45
40/40
40/40
80/90
60/70
45/45
45/45
45
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
MAX
FUSE or
HACR
BRKR
68/75
56/62
38/41
35/35
35/35
64/71
52/58
35/37
31/31
31/31
67/74
55/60
37/40
34/34
34
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
FLA
166/166
166/166
166/166
166/166
166
130/130
130/130
130/130
130/130
130
101/101
101/101
101/101
101/101
101
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
---
LRA
DISC. SIZE
w/ P.E. (pwrd fr/unit)
44
UNIT
---
6.0
11.5
14.0
23.0
---
6.0
11.5
14.0
23.0
108A+108A
NONE
106A
108A
109A
108A+108A
NONE
106A
108A
109A
108A+108A
NONE
23.0
109A
HIGH
14.0
108A
NONE
11.5
106A
MED
6.0
NONE
---
---
---
---
CRHEATER***A00
NONE
Nom
(kW)
DD ---STD
HIGH
MED
DD ---STD
IFM
TYPE
ELEC. HTR
See “Legend and Notes for Table 41 on page 47.
50KC--- *05
NO M. V---Ph---HZ
460---3---60
575---3--- 60
---
---
---
27.7
16.8
13.8
7.2
---
27.7
16.8
13.8
7.2
---
27.7
16.8
13.8
7.2
---
FLA
10
9
11
40
27
23
15
13
38
25
21
13
12
40
26
23
14
13
MCA
NO P.E.
15
15
15
40
30
25
15
15
40
25
25
15
15
40
30
25
15
15
MAX
FUSE or
HACR
BRKR
9
8
11
37
24
21
13
13
35
22
19
11
11
36
24
20
13
13
FLA
57
42
39
79
79
79
79
79
61
61
61
61
61
47
47
47
47
47
LRA
DISC. SIZE
12
11
13
42
28
24
16
14
39
26
22
14
13
41
28
24
16
14
MCA
NO C.O. or UNPWR C.O.
15
15
15
45
30
25
20
20
40
30
25
15
15
45
30
25
20
20
MAX
FUSE or
HACR
BRKR
12
10
13
38
25
22
14
14
36
23
20
12
12
38
25
22
14
14
FLA
59
44
41
80
80
80
80
80
62
62
62
62
62
48
48
48
48
48
LRA
DISC. SIZE
w/ P.E. (pwrd fr/unit)
12
10
13
43
29
26
17
15
41
27
24
15
14
43
29
25
17
15
MCA
Table 41 – Unit Wire/Fuse or HACR Breaker Sizing Data (cont)
ELECTRICAL INFORMATION
15
15
15
45
30
30
20
20
45
30
25
15
15
45
30
25
20
20
MAX
FUSE or
HACR
BRKR
NO P.E.
48HC
50KC
11
10
13
39
27
23
16
15
37
25
21
14
13
39
26
23
15
15
FLA
59
44
41
81
81
81
81
81
63
63
63
63
63
49
49
49
49
49
LRA
DISC. SIZE
13
12
15
44
31
27
19
16
42
29
25
17
15
44
30
27
18
16
MCA
w/ PWRD C.O.
15
15
20
45
35
30
20
20
45
30
25
20
20
45
30
30
20
20
MAX
FUSE or
HACR
BRKR
14
12
15
40
28
24
17
17
38
26
22
15
15
40
28
24
17
16
FLA
61
46
43
82
82
82
82
82
64
64
64
64
64
50
50
50
50
50
LRA
DISC. SIZE
w/ P.E. (pwrd fr/unit)
45
UNIT
--4.9/6.5
6.5/8.7
9.8/13.0
13.1/17.4
15.8/21.0
--4.9/6.5
6.5/8.7
9.8/13.0
13.1/17.4
15.8/21.0
--4.9/6.5
6.5/8.7
9.8/13.0
13.1/17.4
15.8/21.0
--4.9/6.5
7.9/10.5
12.0/16.0
15.8/21.0
19.9/26.5
--4.9/6.5
7.9/10.5
12.0/16.0
15.8/21.0
19.9/26.5
--4.9/6.5
7.9/10.5
12.0/16.0
15.8/21.0
19.9/26.5
CRHEATER***A00
NONE
102A
103B
102A+102A
103B+103B
104B+104B
NONE
102A
103B
102A+102A
103B+103B
104B+104B
NONE
102A
103B
102A+102A
103B+103B
104B+104B
NONE
102A
104B
105A
104B+104B
104B+105A
NONE
102A
104B
105A
104B+104B
104B+105A
NONE
102A
104B
105A
104B+104B
104B+105A
MED
HIGH
MED
HIGH
DD ---STD
DD ---STD
Nom
(kW)
IFM
TYPE
ELEC. HTR
See “Legend and Notes for Table 41 on page 47.
50KC---*06
NO M. V---Ph---HZ
208/230--- 1--- 60
208/230--- 3--- 60
--13.6/15.6
21.9/25.3
33.4/38.5
43.8/50.5
55.2/63.8
--13.6/15.6
21.9/25.3
33.4/38.5
43.8/50.5
55.2/63.8
--13.6/15.6
21.9/25.3
33.4/38.5
43.8/50.5
55.2/63.8
--23.5/27.1
31.4/36.3
46.9/54.2
62.8/72.5
75.8/87.5
--23.5/27.1
31.4/36.3
46.9/54.2
62.8/72.5
75.8/87.5
--23.5/27.1
31.4/36.3
46.9/54.2
62.8/72.5
75.8/87.5
FLA
30/30
30/30
38/42
53/59
66/74
80/91
30/30
30/30
38/42
53/59
66/74
80/91
29
29/29
37/41
51/58
64/73
79/89
40
40/43
48/55
68/77
88/100
104/119
38
38/40
46/52
65/74
85/97
101/116
41
41/44
49/55
68/77
88/100
104/119
MCA
45/45
45/45
45/45
60/60
70/80
80/100
45/45
45/45
45/45
60/60
70/80
80/100
40
40/40
40/45
60/60
70/80
80/90
60
60/60
60/60
70/80
90/100
110/125
60
60/60
60/60
70/80
90/100
110/125
60
60/60
60/60
70/80
90/100
110/125
FLA
30/29
30/29
35/39
48/54
60/68
73/83
30/29
30/29
35/39
48/54
60/68
73/83
28
28/28
34/38
47/53
59/67
72/82
38
38/39
44/50
62/70
80/91
95/109
36
36/37
42/47
60/68
78/89
93/106
185
185/185
185/185
185/185
185/185
185/185
185
185/185
185/185
185/185
185/185
185/185
120
120/120
120/120
120/120
120/120
120/120
174
174/174
174/174
174/174
174/174
174/174
149
149/149
149/149
149/149
149/149
149/149
144
144/144
144/144
144/144
144/144
144/144
LRA
DISC. SIZE
39
39/40
45/50
62/71
81/92
96/109
NO P.E.
MAX
FUSE or
HACR
BRKR
32/32
32/33
41/45
55/61
68/76
82/93
32/32
32/33
41/45
55/61
68/76
82/93
31
31/32
39/44
54/60
67/75
81/92
42
42/45
51/57
70/79
90/102
106/121
40
40/43
48/54
68/77
87/100
104/118
42
42/46
51/57
71/80
91/103
107/121
MCA
NO C.O. or UNPWR C.O.
45/45
45/45
45/45
60/70
70/80
90/100
45/45
45/45
45/45
60/70
70/80
90/100
45
45/45
45/45
60/60
70/80
90/100
60
60/60
60/60
70/80
90/110
110/125
60
60/60
60/60
70/80
90/100
110/125
60
60/60
60/60
80/80
100/110
110/125
MAX
FUSE or
HACR
BRKR
32/32
32/32
37/41
50/56
62/70
75/85
32/32
32/32
37/41
50/56
62/70
75/85
31
31/31
36/40
49/55
61/69
74/84
41
41/41
46/52
64/73
82/94
97/111
38
38/39
44/50
62/70
80/91
95/108
41
41/42
47/52
65/73
83/94
98/111
FLA
187
187/187
187/187
187/187
187/187
187/187
187
187/187
187/187
187/187
187/187
187/187
122
122/122
122/122
122/122
122/122
122/122
176
176/176
176/176
176/176
176/176
176/176
151
151/151
151/151
151/151
151/151
151/151
146
146/146
146/146
146/146
146/146
146/146
LRA
DISC. SIZE
w/ P.E. (pwrd fr/unit)
35/35
35/36
44/48
59/65
72/80
86/97
35/35
35/36
44/48
59/65
72/80
86/97
34
34/35
43/47
57/64
70/79
85/95
-------------
-------------
-------------
MCA
NO P.E.
50/50
50/50
50/50
60/70
80/80
90/100
50/50
50/50
50/50
60/70
80/80
90/100
45
45/45
45/50
60/70
80/80
90/100
-------------
-------------
-------------
MAX
FUSE or
HACR
BRKR
48HC
50KC
Table 41 – Unit Wire/Fuse or HACR Breaker Sizing Data (cont)
ELECTRICAL INFORMATION
35/35
35/35
40/44
54/59
66/73
79/88
35/35
35/35
40/44
54/59
66/73
79/88
34
34/34
39/43
52/58
64/72
78/87
-------------
-------------
-------------
FLA
190
190/190
190/190
190/190
190/190
190/190
190
190/190
190/190
190/190
190/190
190/190
125
125/125
125/125
125/125
125/125
125/125
-------------
-------------
-------------
LRA
DISC. SIZE
37/37
37/39
47/51
61/67
74/82
88/99
37/37
37/39
47/51
61/67
74/82
88/99
36
36/38
45/50
60/66
73/81
87/98
-------------
-------------
-------------
MCA
w/ PWRD C.O.
50/50
50/50
50/60
70/70
80/90
90/100
50/50
50/50
50/60
70/70
80/90
90/100
50
50/50
50/50
60/70
80/90
90/100
-------------
-------------
-------------
MAX
FUSE or
HACR
BRKR
37/37
37/37
43/46
56/62
68/75
81/91
37/37
37/37
43/46
56/62
68/75
81/91
36
36/36
41/45
55/60
67/74
80/90
-------------
-------------
-------------
FLA
192
192/192
192/192
192/192
192/192
192/192
192
192/192
192/192
192/192
192/192
192/192
127
127/127
127/127
127/127
127/127
127/127
-------------
-------------
-------------
LRA
DISC. SIZE
w/ P.E. (pwrd fr/unit)
46
UNIT
6.0
11.5
14.0
23.0
25.5
---
6.0
11.5
14.0
23.0
25.5
---
6.0
11.5
14.0
23.0
NONE
106A
108A
109A
108A+108A
108A+109A
NONE
106A
108A
109A
108A+108A
108A+109A
NONE
106A
108A
109A
108A+108A
NONE
NONE
NONE
MED
HIGH
---
---
---
25.5
---
CRHEATER***A00
108A+109A
Nom
(kW)
DD ---STD
HIGH
MED
DD ---STD
IFM
TYPE
ELEC. HTR
See “Legend and Notes for Table 41 on page 47.
50KC--- *06
NO M. V---Ph---HZ
460---3---60
575---3--- 60
---
---
---
30.7
27.7
16.8
13.8
7.2
---
30.7
27.7
16.8
13.8
7.2
---
30.7
27.7
16.8
13.8
7.2
---
FLA
11
11
12
44
40
27
23
15
14
44
40
27
23
15
14
44
40
26
23
14
14
MCA
NO P.E.
15
15
15
45
40
30
25
20
20
45
40
30
25
20
20
45
40
30
25
20
20
MAX
FUSE or
HACR
BRKR
10
10
12
40
37
24
21
14
14
40
37
24
21
14
14
40
36
24
20
14
14
FLA
64
64
46
90
90
90
90
90
90
90
90
90
90
90
90
58
58
58
58
58
58
LRA
DISC. SIZE
12
12
14
45
42
28
24
16
15
45
42
28
24
16
15
45
41
28
24
16
15
MCA
NO C.O. or UNPWR C.O.
15
15
15
45
45
30
25
20
20
45
45
30
25
20
20
45
45
30
25
20
20
MAX
FUSE or
HACR
BRKR
12
12
14
41
38
25
22
15
15
41
38
25
22
15
15
41
38
25
22
15
15
FLA
66
66
48
91
91
91
91
91
91
91
91
91
91
91
91
59
59
59
59
59
59
LRA
DISC. SIZE
w/ P.E. (pwrd fr/unit)
12
12
13
47
43
29
26
17
17
47
43
29
26
17
17
47
43
29
25
17
16
MCA
Table 41 – Unit Wire/Fuse or HACR Breaker Sizing Data (cont)
ELECTRICAL INFORMATION
15
15
15
50
45
30
30
20
20
50
45
30
30
20
20
50
45
30
25
20
20
MAX
FUSE or
HACR
BRKR
NO P.E.
48HC
50KC
12
12
13
43
39
27
23
16
16
43
39
27
23
16
16
42
39
26
23
16
16
FLA
66
66
48
92
92
92
92
92
92
92
92
92
92
92
92
60
60
60
60
60
60
LRA
DISC. SIZE
14
14
15
48
44
31
27
19
18
48
44
31
27
19
18
48
44
30
27
18
17
MCA
w/ PWRD C.O.
15
15
20
50
45
35
30
20
20
50
45
35
30
20
20
50
45
30
30
20
20
MAX
FUSE or
HACR
BRKR
14
14
16
44
40
28
24
18
18
44
40
28
24
18
18
44
40
28
24
17
17
FLA
68
68
50
93
93
93
93
93
93
93
93
93
93
93
93
61
61
61
61
61
61
LRA
DISC. SIZE
w/ P.E. (pwrd fr/unit)
LEGEND:
BRKR
--- Circuit breaker
CO
--- Convenient outlet
DD
--- Direct drive (indoor fan motor)
DISC
--- Disconnect
FLA
--- Full load amps
IFM
--- Indoor fan motor
LRA
--- Locked rotor amps
MCA
--- Minimum circuit amps
MOCP
--- MAX FUSE or HACR Breaker
PE
--- Power exhaust
PWRD CO
--- Powered convenient outlet
UNPWR CO
--- Unpowered convenient outlet
NOTES:
1. In compliance with NEC requirements for multimotor and
combination load equipment (refer to NEC Articles 430 and
440), the overcurrent protective device for the unit shall be
fuse or HACR breaker. Canadian units may be fuse or circuit breaker.
2. Unbalanced 3-Phase Supply Voltage
Never operate a motor where a phase imbalance in supply
voltage is greater than 2%. Use the following formula to determine the percentage of voltage imbalance.
% Voltage Imbalance
= 100 x
max voltage deviation from average voltage
average voltage
Example: Supply voltage is 230-3-60
AB = 224 v
BC = 231 v
AC = 226 v
Average Voltage =
=
(224 + 231 + 226)
3
=
681
3
227
Determine maximum deviation from average voltage.
(AB) 227 – 224 = 3 v
(BC) 231 – 227 = 4 v
(AC) 227 – 226 = 1 v
Maximum deviation is 4 v.
Determine percent of voltage imbalance.
% Voltage Imbalance
= 100 x
4
227
= 1.76%
This amount of phase imbalance is satisfactory as it is below the
maximum allowable 2%.
IMPORTANT: If the supply voltage phase imbalance is more than
2%, contact your local electric utility company immediately.
47
50KC
Legend and Notes for Table 41
SEQUENCE OF OPERATION
General
The sequence below describes the sequence of operation
for an electromechanical unit with and without a factory
installed EconoMi$ert IV and X (called “economizer” in
this sequence). For information regarding a direct digital
controller,
see
the
start-- up,
operations,
and
troubleshooting manual for the applicable controller.
Electromechanical units with no economizer
50KC
Cooling (Single speed indoor fan motor) —
When the thermostat calls for cooling, terminals G and Y1
are energized. As a result, the indoor fan contactor (IFC)
and the compressor contactor (C1) are energized, causing
the indoor fan motor (IFM), compressor #1, and outdoor
fan to start. If the unit has 2 stages of cooling, the
thermostat will additionally energize Y2. The Y2 signal
will energize compressor contactor #2 (C2), causing
compressor #2 to start. Regardless of the number of
stages, the outdoor fan motor runs continuously while unit
is cooling.
Heating
NOTE: The 50KC is sold as cooling only. If electric
heaters are required, use only factory-- approved electric
heaters. They will operate as described below.
Units have either 1 or 2 stages of electric heat. When the
thermostat calls for heating, power is applied to the W1
terminal at the unit. The unit control will energize the
indoor fan contactor and the first stage of electric heat. On
units with 2-- stage heating, when additional heating is
required, the second stage of electric heat (if equipped)
will be energized when power is applied at the W2
terminal on the unit.
Electromechanical units with an economizer
Cooling —
When free cooling is not available, the compressors will be
controlled by the zone thermostat. When free cooling is
available, the outdoor air damper is modulated by the
EconoMi$er IV and X control to provide a 50_F (10_C) to
55_F (13_C) mixed air temperature into the zone. As the
mixed air temperature fluctuates above 55_F (13_C) or
below 50_F (10_C) dampers will be modulated (open or
close) to bring the mixed air temperature back within
control. If mechanical cooling is utilized with free cooling,
the outdoor air damper will maintain its current position at
the time the compressor is started. If the increase in cooling
capacity causes the mixed air temperature to drop below
45_F (9_C), then the outdoor air damper position will be
decreased to the minimum position. If the mixed air
temperature continues to fall, the outdoor air damper will
close. Control returns to normal once the mixed air
temperature rises above 48_F (9_C). The power exhaust fans
will be energized and de--energized, if installed, as the
outdoor air damper opens and closes.
If field-- installed accessory CO2 sensors are connected to
the EconoMi$er IV and X control, a demand controlled
ventilation strategy will begin to operate. As the CO2
level in the zone increases above the CO2 setpoint, the
minimum position of the damper will be increased
proportionally. As the CO2 level decreases because of the
increase in fresh air, the outdoor air damper will be
proportionally closed. For EconoMi$er IV and X
operation, there must be a thermostat call for the fan (G).
If the unit is occupied and the fan is on, the damper will
operate at minimum position. Otherwise, the damper will
be closed.
When the EconoMi$er IV and X control is in the occupied
mode and a call for cooling exists (Y1 on the thermostat),
the control will first check for indoor fan operation. If the
fan is not on, then cooling will not be activated. If the fan
is on, then the control will open the EconoMi$er IV and X
damper to the minimum position.
On the initial power to the EconoMi$er IV and X control,
it will take the damper up to 2 1/2 minutes before it
begins to position itself. After the initial power-- up,
further changes in damper position can take up to 30
seconds to initiate. Damper movement from full closed to
full open (or vice versa) will take between 1 1/2 and 2 1/2
minutes. If free cooling can be used as determined from
the appropriate changeover command (switch, dry bulb,
enthalpy curve, differential dry bulb, or differential
enthalpy), then the control will modulate the dampers
open to maintain the mixed air temperature setpoint at
50_F (10_C) to 55_F (13_C). If there is a further demand
for cooling (cooling second stage - Y2 is energized), then
the control will bring on compressor stage 1 to maintain
the mixed air temperature setpoint. The EconoMi$er IV
and X damper will be open at maximum position.
EconoMi$er IV and X operation is limited to a single
compressor.
Heating
The sequence of operation for the heating is the same as
an electromechanical unit with no economizer. The only
difference is how the economizer acts. The economizer
will stay at the Economizer Minimum Position while the
evaporator fan is operating. The outdoor air damper is
closed when the indoor fan is not operating.
Optional Humidi-- MiZer Dehumidification System
Units with the factory equipped Humidi-- MiZer option are
capable of providing multiple modes of improved
dehumidification as a variation of the normal cooling
cycle. The Humidi-- MiZer option includes additional
valves in the liquid line and discharge line of each
refrigerant circuit, a small reheat condenser coil
downstream of the evaporator, and Motormaster
variable-- speed control of some or all outdoor fans.
Operation of the revised refrigerant circuit for each mode
is described below.
48
SEQUENCE OF OPERATION (cont.)
The Humidi-- MiZer system provides three sub-- modes of
operation: Cool, Reheat1, and Reheat2.
Cool mode - provides a normal ratio of Sensible and
Latent Cooling effect from the evaporator coil.
Reheat1 - provides increased Latent Cooling while
slightly reducing the Sensible Cooling effect.
Reheat2 - provides normal Latent Cooling but with null
or minimum Sensible Cooling effect delivered to the
space.
50KC
The Reheat1 and Reheat2 modes are available when the
unit is not in a Heating mode and when the Low Ambient
Lockout switch is closed.
The following diagrams depict piping for Single Stage
cooling units.
49
SEQUENCE OF OPERATION (cont.)
DSVx
VALVE
INDOOR LEAVING
AIR
CONDENSER COIL
REHEAT MODE
METERING
DEVICE (TXV)
HUMIDI-MIZER COIL
OUTDOOR AIR
CSVx
VALVE
COMPRESSOR
EVAPORATOR COIL
ACUTROL
METERING
DEVICE
= CLOSED VALVE
= OPEN VALVE
50KC
INDOOR ENTERING
AIR
C12647
Normal Cooling Mode -- Humidi--MiZer System with Single Stage Cooling
DSVx
VALVE
INDOOR LEAVING
AIR
REHEAT MODE
METERING
DEVICE (TXV)
HUMIDI-MIZER COIL
CONDENSER COIL
OUTDOOR AIR
CSVx
VALVE
COMPRESSOR
EVAPORATOR COIL
= CLOSED VALVE
= OPEN VALVE
INDOOR ENTERING
AIR
ACUTROL
METERING
DEVICE
C12648
Subcooling Mode (Reheat 1) -- Humidi--MiZer System with Single Stage Cooling
DSVx
VALVE
INDOOR LEAVING
AIR
REHEAT MODE
METERING
DEVICE (TXV)
HUMIDI-MIZER COIL
CONDENSER COIL
OUTDOOR AIR
CSVx
VALVE
COMPRESSOR
EVAPORATOR COIL
= CLOSED VALVE
= OPEN VALVE
INDOOR ENTERING
AIR
ACUTROL
METERING
DEVICE
C12649
Hot Gas Reheat Mode (Reheat 2) -- Humidi--MiZer System with Single Stage Cooling
50
GUIDE SPECIFICATIONS -- 50KC**04--06
Cooling Only/Electric Heat Packaged Rooftop
HVAC Guide Specifications
Size Range:
3 to 5 Nominal Tons
Section
Description
23 06 80
Schedules for Decentralized HVAC Equipment
23 06 80.13
Decentralized Unitary HVAC Equipment Schedule
23 06 80.13.A. Rooftop unit schedule
1. Schedule is per the project specification requirements.
HVAC Equipment Insulation
23 07 16.13
Decentralized, Rooftop Units:
23 07 16.13.A. Evaporator fan compartment:
1. Interior cabinet surfaces shall be insulated with a minimum 1/2-- in. thick, minimum 1 1/2 lb density, flexible
fiberglass insulation bonded with a phenolic binder, neoprene coated on the air side.
2. Insulation and adhesive shall meet NFPA 90A requirements for flame spread and smoke generation.
23 07 16.13.B. Electric heat compartment:
1. Aluminum foil-- faced fiberglass insulation shall be used.
2. Insulation and adhesive shall meet NFPA 90A requirements for flame spread and smoke generation.
23 09 13
Instrumentation and Control Devices for HVAC
23 09 13.23
Sensors and Transmitters
23 09 13.23.A. Thermostats
1. Thermostat must
a. energize both “W” and “G” when calling for heat.
b. have capability to energize 1 stage of cooling, and 2 different stages of heating.
c. include capability for occupancy scheduling.
23 09 23
Direct-- digital Control system for HVAC
23 09 23.13
Decentralized, Rooftop Units:
23 09 23.13.A. PremierLink controller
1. Shall be ASHRAE 62 compliant.
2. Shall accept 18-- 32VAC input power.
3. Shall have an operating temperature range from - 40_F (--40_C) to 158_F (70_C), 10% - 95% RH (non--condensing).
4. Shall include an integrated economizer controller to support an economizer with 4 to 20 mA actuator input and
no microprocessor controller.
5. Controller shall accept the following inputs: space temperature, setpoint adjustment, outdoor air temperature,
indoor air quality, outdoor air quality, indoor relative humidity, compressor lock-- out, fire shutdown, enthalpy, fan
status, remote time clock/door switch.
6. Shall accept a CO2 sensor in the conditioned space, and be Demand Control Ventilation (DCV) ready.
7. Shall provide the following outputs: Economizer, fan, cooling stage 1, cooling stage 2, heat stage 1, heat stage 2,
heat stage 3/ exhaust/ reversing valve/ dehumidify/ occupied.
8. Unit shall provide surge protection for the controller through a circuit breaker.
9. Shall be Internet capable, and communicate at a Baud rate of 38.4K or faster
10. Shall have an LED display independently showing the status of activity on the communication bus, and processor
operation.
11. Shall include an EIA-- 485 protocol communication port, an access port for connection of either a computer or a
Carrier technician tool, an EIA-- 485 port for network communication to intelligent space sensors and displays,
and a port to connect an optional LonWorks plug-- in communications card.
12. Shall have built--in Carrier Comfort Network (CCN) protocol, and be compatible with other CCN devices, including
ComfortLink and ComfortVIEW controllers.
13. Shall have built-- in support for Carrier technician tool.
51
50KC
23 07 16
50KC
14. Software upgrades will be accomplished by local download. Software upgrades through chip replacements are
not allowed.
15. Shall be shock resistant in all planes to 5G peak, 11ms during operation, and 100G peak, 11ms during storage.
16. Shall be vibration resistant in all planes to 1.5G @ 20-- 300 Hz.
17. Shall support a bus length of 4000 ft max, 60 devices per 1000 ft section, and 1 RS--485 repeater per 1000 ft sections.
23 09 23.13.B. Open protocol, direct digital controller:
1. Shall be ASHRAE 62 compliant.
2. Shall accept 18-- 30VAC, 50-- 60Hz, and consumer 15VA or less power.
3. Shall have an operating temperature range from - 40_F (--40_C) to 130_F (54_C), 10% - 90% RH (non--condensing).
4. Shall include built-- in protocol for BACNET (MS/TP and PTP modes), Modbus (RTU and ASCII), Johnson N2
and LonWorks. LonWorks Echelon processor required for all Lon applications shall be contained in separate
communication board.
5. Shall allow access of up to 62 network variables (SNVT). Shall be compatible with all open controllers
6. Baud rate Controller shall be selectable using a dipswitch.
7. Shall have an LED display independently showing the status of serial communication, running, errors, power, all
digital outputs, and all analog inputs.
8. Shall accept the following inputs: space temperature, setpoint adjustment, outdoor air temperature, indoor air quality,
outdoor air quality, compressor lock--out, fire shutdown, enthalpy switch, and fan status/filter status/ humidity/ remote
occupancy.
9. Shall provide the following outputs: economizer, fan, cooling stage 1, cooling stage 2, heat stage 1, heat stage 2,
heat stage 3/ exhaust/ reversing valve.
10. Shall have built-- in surge protection circuitry through solid state polyswitches. Polyswitches shall be used on
incoming power and network connections. Polyswitches will return to normal when the “trip” condition clears.
11. Shall have a battery backup capable of a minimum of 10,000 hours of data and time clock retention during power
outages.
12. Shall have built-- in support for Carrier technician tool.
13. Shall include an EIA-- 485 protocol communication port, an access port for connection of either a computer or a
Carrier technician tool, an EIA-- 485 port for network communication to intelligent space sensors and displays,
and a port to connect an optional LonWorks communications card.
14. Software upgrades will be accomplished by either local or remote download. No software upgrades through chip
replacements are allowed.
23 09 33
Electric and Electronic Control System for HVAC
23 09 33.13
Decentralized, Rooftop Units:
23 09 33.13.A. General:
1. Shall be complete with self-- contained low-- voltage control circuit protected by a resettable circuit breaker on the
24-- v transformer side. Transformer shall have 75VA capability.
2. Shall utilize color-- coded wiring.
3. Shall include a central control terminal board to conveniently and safely provide connection points for vital
control functions such as: smoke detectors, phase monitor, economizer, thermostat, DDC control options, and
low and high pressure switches.
4. Unit shall include a minimum of one 8-- pin screw terminal connection board for connection of control wiring.
23 09 33.23.B. Safeties:
1. Compressor over-- temperature, over current.
2. Low pressure switch.
a. Low pressure switch shall use different color wire than the high pressure switch. The purpose is to assist the
installer and service technician to correctly wire and or troubleshoot the rooftop unit.
3. High pressure switch.
a. High pressure switch shall use different color wire than the low pressure switch. The purpose is to assist the
installer and service technician to correctly wire and or troubleshoot the rooftop unit.
4. Automatic reset, motor thermal overload protector.
23 09 93
Sequence of Operations for HVAC Controls
23 09 93.13
23 09 93.13
Decentralized, Rooftop Units:
INSERT SEQUENCE OF OPERATION
52
23 40 13
Panel Air Filters
23 40 13.13
Decentralized, Rooftop Units:
23 40 13.13.A. Standard filter section
1. Shall consist of factory-- installed, low velocity, throwaway 2-- in. thick fiberglass filters of commercially available
sizes.
2. Unit shall use only one filter size. Multiple sizes are not acceptable.
3. Filters shall be accessible through an access panel with “no-- tool” removal as described in the unit cabinet section
of this specification (23 81 19.13.G).
Self-- Contained Air Conditioners
23 81 19.13
Small-- Capacity Self-- Contained Air Conditioners (50KC**04-- 06)
23 81 19.13.A. General
1. Outdoor, rooftop mounted, electrically controlled, heating and cooling unit utilizing a(n) hermetic scroll compressor(s) for cooling duty and gas combustion for heating duty.
2. Factory assembled, single-- piece heating and cooling rooftop unit. Contained within the unit enclosure shall be
all factory wiring, piping, controls, and special features required prior to field start-- up.
3. Unit shall use Puron refrigerant.
4. Unit shall be installed in accordance with the manufacturer’s instructions.
5. Unit must be selected and installed in compliance with local, state, and federal codes.
23 81 19.13.B. Quality Assurance
1. Unit meets ASHRAE 90.1 minimum efficiency requirements.
2. Unit shall be rated in accordance with AHRI Standards 210/240.
3. Unit shall be designed to conform to ASHRAE 15.
4. Unit shall be UL-- tested and certified in accordance with ANSI Z21.47 Standards and UL-- listed and certified
under Canadian standards as a total package for safety requirements.
5. Insulation and adhesive shall meet NFPA 90A requirements for flame spread and smoke generation.
6. Unit casing shall be capable of withstanding 500-- hour salt spray exposure per ASTM B117 (scribed specimen).
7. Unit shall be designed in accordance with ISO 9001:2000, and shall be manufactured in a facility registered by
ISO 9001:2000.
8. Roof curb shall be designed to conform to NRCA Standards.
9. Unit shall be subjected to a completely automated run test on the assembly line. The data for each unit will be
stored at the factory, and must be available upon request.
10. Unit shall be designed in accordance with UL Standard 1995, including tested to withstand rain.
11. Unit shall be constructed to prevent intrusion of snow and tested to prevent snow intrusion into the control box
up to 40 mph.
12. Unit shake tested to assurance level 1, ASTM D4169 to ensure shipping reliability.
23 81 19.13.C. Delivery, Storage, and Handling
1. Unit shall be stored and handled per manufacturer’s recommendations.
2. Lifted by crane requires either shipping top panel or spreader bars.
3. Unit shall only be stored or positioned in the upright position.
23 81 19.13.D. Project Conditions
1. As specified in the contract.
23 81 19.13.E. Operating Characteristics
1. Unit shall be capable of starting and running at 115_F (46_C) ambient outdoor temperature, meeting maximum
load criteria of AHRI Standard 210/240 at  10% voltage.
2. Compressor with standard controls shall be capable of operation down to 40_F (4_C), ambient outdoor temperatures.
Accessory winter start kit is necessary if mechanically cooling at ambient temperatures down to 25_F (--4_C).
3. Unit shall discharge supply air vertically or horizontally as shown on contract drawings.
4. Unit shall be factory configured for vertical supply & return configurations.
5. Unit shall be field convertible from vertical to horizontal airflow on all models. No special kit required.
6. Unit shall be capable of mixed operation: vertical supply with horizontal return or horizontal supply with vertical
return.
23 81 19.13.F. Electrical Requirements
1. Main power supply voltage, phase, and frequency must match those required by the manufacturer.
53
50KC
23 81 19
50KC
23 81 19.13.G. Unit Cabinet
1. Unit cabinet shall be constructed of galvanized steel, and shall be bonderized and coated with a pre-- painted
baked enamel finish on all externally exposed surfaces.
2. Unit cabinet exterior paint shall be: film thickness, (dry) 0.003 inches minimum, gloss (per ASTM D523, 60_F):
60, Hardness: H-- 2H Pencil hardness.
3. Evaporator fan compartment interior cabinet insulation shall conform to AHRI Standards 210/240 minimum
exterior sweat criteria. Interior surfaces shall be insulated with a minimum 1/2-- in. thick, 1 lb density, flexible
fiberglass insulation, neoprene coated on the air side. Aluminum foil-- faced fiberglass insulation shall be used in
the heat compartment.
4. Base of unit shall have a minimum of four locations for thru-- the-- base gas and electrical connections (factory
installed or field installed), standard.
5. Base Rail
a. Unit shall have base rails on a minimum of 2 sides.
b. Holes shall be provided in the base rails for rigging shackles to facilitate maneuvering and overhead rigging.
c. Holes shall be provided in the base rail for moving the rooftop by fork truck.
d. Base rail shall be a minimum of 16 gauge thickness.
6. Condensate pan and connections:
a. Shall be a sloped condensate drain pan made of a non-- corrosive material.
b. Shall comply with ASHRAE Standard 62.
c. Shall use a 3/4” - 14 NPT drain connection, possible either through the bottom or end of the drain pan.
Connection shall be made per manufacturer’s recommendations.
7. Top panel:
a. Shall be a single piece top panel on all sizes.
8. Electrical Connections
a. All unit power wiring shall enter unit cabinet at a single, factory-- prepared, knockout location.
b. Thru-- the-- base capability
(1.) Standard unit shall have a thru-- the-- base electrical location(s) using a raised, embossed portion of the
unit basepan.
(2.) Optional, factory-- approved, water-- tight connection method must be used for thru-- the-- base electrical
connections.
(3.) No basepan penetration, other than those authorized by the manufacturer, is permitted.
9. Component access panels (standard)
a. Cabinet panels shall be easily removable for servicing.
b. Unit shall have one factory installed, tool-- less, removable, filter access panel.
c. Panels covering control box, indoor fan, indoor fan motor, gas components (where applicable), and compressors
shall have molded composite handles.
d. Handles shall be UV modified, composite. permanently attached, and recessed into the panel.
e. Screws on the vertical portion of all removable access panel shall engage into heat resistant, molded composite
collars.
f. Collars shall be removable and easily replaceable using manufacturer recommended parts.
23 81 19.13.I. Coils
1. Standard Aluminum fin - Copper Tube Coils:
a. Standard evaporator and condenser coils shall have aluminum lanced plate fins mechanically bonded to
seamless internally grooved copper tubes with all joints brazed.
b. Evaporator coils shall be leak tested to 150 psig, pressure tested to 450 psig, and qualified to UL 1995 burst
test at 1775 psig.
c. Condenser coils shall be leak tested to 150 psig, pressure tested to 650 psig, and qualified to UL 1995 burst
test at 1980 psig.
2. Optional Pre-- coated aluminum-- fin condenser coils (3 Phase Models Only):
a. Shall have a durable epoxy--phenolic coating to provide protection in mildly corrosive coastal environments.
b. Coating shall be applied to the aluminum fin stock prior to the fin stamping process to create an inert barrier
between the aluminum fin and copper tube.
c. Epoxy-- phenolic barrier shall minimize galvanic action between dissimilar metals.
3. Optional Copper-- fin evaporator and condenser coils (3 Phase Models Only):
a. Shall be constructed of copper fins mechanically bonded to copper tubes and copper tube sheets.
54
55
50KC
b. Galvanized steel tube sheets shall not be acceptable.
c. A polymer strip shall prevent coil assembly from contacting the sheet metal coil pan to minimize potential
for galvanic corrosion between coil and pan.
4. Optional E-- coated aluminum-- fin evaporator and condenser coils (3 Phase Models Only):
a. Shall have a flexible epoxy polymer coating uniformly applied to all coil surface areas without material
bridging between fins.
b. Coating process shall ensure complete coil encapsulation of tubes, fins and headers.
c. Color shall be high gloss black with gloss per ASTM D523-- 89.
d. Uniform dry film thickness from 0.8 to 1.2 mil on all surface areas including fin edges.
e. Superior hardness characteristics of 2H per ASTM D3363-- 92A and cross-- hatch adhesion of 4B-- 5B per
ASTM D3359-- 93.
f. Impact resistance shall be up to 160 in.-- lb (ASTM D2794-- 93).
g. Humidity and water immersion resistance shall be up to minimum 1000 and 250 hours respectively (ASTM
D2247-- 92 and ASTM D870-- 92).
h. Corrosion durability shall be confirmed through testing to be no less than 1000 hours salt spray per ASTM
B117-- 90.
5. Standard All Aluminum Novation Coils:
23 81 19.13.J. Refrigerant Components
1. Refrigerant circuit shall include the following control, safety, and maintenance features:
a. Fixed orifice metering system shall prevent mal-- distribution of two-- phase refrigerant by including multiple
fixed orifice devices in each refrigeration circuit. Each orifice is to be optimized to the coil circuit it serves.
b. Refrigerant filter drier.
c. Service gauge connections on suction and discharge lines.
d. Pressure gauge access through a specially designed access port in the top panel of the unit.
2. There shall be gauge line access port in the skin of the rooftop, covered by a black, removable plug.
a. The plug shall be easy to remove and replace.
b. When the plug is removed, the gauge access port shall enable maintenance personnel to route their pressure
gauge lines.
c. This gauge access port shall facilitate correct and accurate condenser pressure readings by enabling the
reading with the compressor access panel on.
d. The plug shall be made of a leak proof, UV-- resistant, composite material.
3. Compressors
a. Unit shall use one fully hermetic, scroll compressor for each independent refrigeration circuit.
b. Compressor motors shall be cooled by refrigerant gas passing through motor windings.
c. Compressors shall be internally protected from high discharge temperature conditions.
d. Compressors shall be protected from an over-- temperature and over-- amperage conditions by an internal,
motor overload device.
e. Compressor shall be factory mounted on rubber grommets.
f. Compressor motors shall have internal line break thermal, current overload and high pressure differential
protection.
g. Crankcase heaters shall not be required for normal operating range, unless provided by compressor manufacturer
due to refrigerant charge limits.
23 81 19.13.K. Filter Section
1. Filters access is specified in the unit cabinet section of this specification.
2. Filters shall be held in place by a pivoting filter tray, facilitating easy removal and installation.
3. Shall consist of factory-- installed, low velocity, throw-- away 2-- in. thick fiberglass filters.
4. Filters shall be standard, commercially available sizes.
5. Only one size filter per unit is allowed.
23 81 19.13.L. Evaporator Fan and Motor
1. Evaporator fan motor:
a. Shall have permanently lubricated bearings.
b. Shall have inherent automatic-- reset thermal overload protection or circuit breaker.
c. Shall have a maximum continuous bhp rating for continuous duty operation; no safety factors above that
rating shall be required.
50KC
2. Direct Drive ECM X13 - Evaporator Fan Standard:
a. Multi-- speed motor with easy quick adjustment settings.
b. Blower fan shall be double-- inlet type with forward-- curved blades.
c. Shall be constructed from steel with a corrosion resistant finish and dynamically balanced.
3. Belt-- driven Evaporator Fan Optional:
a. Belt drive shall include an adjustable pitch motor pulley.
b. Shall use sealed, permanently lubricated ball-- bearing type.
c. Blower fan shall be double-- inlet type with forward-- curved blades.
d. Shall be constructed from steel with a corrosion resistant finish and dynamically balanced.
23 81 19.13.M. Condenser Fans and Motors
1. Condenser fan motors:
a. Shall be a totally enclosed motor.
b. Shall use permanently lubricated bearings.
c. Shall have inherent thermal overload protection with an automatic reset feature.
d. Shall use a shaft-- down design on all sizes.
2. Condenser Fans:
a. Shall be a direct-- driven propeller type fan.
b. Shall have galvalum blades riveted to corrosion-- resistant steel spiders and shall be dynamically balanced.
23 81 19.13.N. Special Features, Options and Accessories
1. Integrated EconoMi$er IV, EconoMi$er2, and EconoMi$er X standard leak rate models. (Factory installed on 3
phase models only. Field installed on all 3 and 1 phase models)
a. Integrated, gear driven opposing modulating blade design type capable of simultaneous economizer and
compressor operation.
b. Independent modules for vertical or horizontal return configuration shall be available. Vertical return modules
shall be available as a factory installed option.
c. Damper blades shall be galvanized steel with composite gears. Plastic or composite blades on intake or return
shall not be acceptable.
d. Shall include all hardware and controls to provide free cooling with outdoor air when temperature and/or
humidity are below setpoints.
e. Shall be equipped with gear driven dampers for both the outdoor ventilation air and the return air for positive air stream control.
f. Standard leak rate shall be equipped with dampers not to exceed 2% leakage at 1 in. wg pressure differential.
g. Economizer controller on EconoMi$er IV models shall be Honeywell W7212 that provides:
(1.) Combined minimum and DCV maximum damper position potentiometers with compressor staging relay.
(2.) Functions with solid state analog enthalpy or dry bulb changeover control sensing.
(3.) Contain LED indicates for:
when free cooling is available, when module is in DCV mode, when exhaust fan contact is closed.
h. Economizer controller on EconoMi$er X models shall be the Honeywell W7220 that provides:
(1.) 2-- line LCD interface screen for setup, configuration and troubleshooting.
(2.) On-- board Fault Detection and Diagnostics (FDD) that senses and alerts when the economizer is not
operating properly, per California Title 24.
(3.) Sensor failure loss of communication identification
(4.) Automatic sensor detection
(5.) Capabilities for use with multiple-- speed indoor fan systems
(6.) Utilize digital sensors: Dry bulb and Enthalpy
i. Economizer controller on EconoMi$er 2 models with PremierLink shall be 4--20mA design and controlled by
the PremierLink controller. PremierLink does not comply with California Title 24 Fault Detection& Diagnostic
(FDD) requirements.
j. Economizer controller on EconoMi$er 2 models with RTU Open models shall be a 4--20mA design controlled
directly by the RTU Open controller. RTU Open meets California Title 24 Fault Detection & Diagnostic (FDD)
requirements.
k. Shall be capable of introducing up to 100% outdoor air.
l. Shall be equipped with a barometric relief damper capable of relieving up to 100% return air and contain
seals that meet ASHRAE 90.1 requirements.
m. Shall be designed to close damper(s) during loss-- of-- power situations with spring return built into motor.
56
57
50KC
n. Dry bulb outdoor air temperature sensor shall be provided as standard. Enthalpy sensor is also available on
factory installed only. Outdoor air sensor setpoint shall be adjustable and shall range from 40 to 100_F /4 to
38_C. Additional sensor options shall be available as accessories.
o. The economizer controller shall also provide control of an accessory power exhaust unit function. Factory
set at 100%, with a range of 0% to 100%.
p. The economizer shall maintain minimum airflow into the building during occupied period and provide design
ventilation rate for full occupancy.
q. Dampers shall be completely closed when the unit is in the unoccupied mode.
r. Economizer controller shall accept a 2-- 10 Vdc CO2 sensor input for IAQ/DCV control. In this mode,
dampers shall modulate the outdoor air damper to provide ventilation based on the sensor input.
s. Compressor lockout temperature on W7220 is adjustable from - 45_F to 80_F, set at a factory default of
32_F. Others shall open at 35_F (2_C) and closes at 50_F (10_C).
t. Actuator shall be direct coupled to economizer gear. No linkage arms or control rods shall be acceptable.
u. Economizer controller shall provide indications when in free cooling mode, in the DCV mode, or the exhaust
fan contact is closed.
2. Integrated EconoMi$er2, and EconoMi$er X Ultra Low Leak rate models.(Factory installed on 3 phase models
only. Field installed on all 3 and 1 phase models)
a. Integrated, gear driven opposing modulating blade design type capable of simultaneous economizer and
compressor operation.
b. Independent modules for vertical or horizontal return configuration shall be available. Vertical return modules
shall be available as a factory installed option.
c. Damper blades shall be galvanized steel with composite gears. Plastic or composite blades on intake or return
shall not be acceptable.
d. Shall include all hardware and controls to provide free cooling with outdoor air when temperature and/or
humidity are below setpoints.
e. Shall be equipped with gear driven dampers for both the outdoor ventilation air and the return air for positive
air stream control
f. Ultra Low Leak design meets California Title 24 section 140.4 and ASHRAE90.1 requirements for 4 cfm
per sq.ft. on the outside air dampers and 10 cfm per sq. ft. on the return dampers.
g. Economizer controller on EconoMi$er X models shall be the Honeywell W7220 that provides:
(1.) 2-- line LCD interface screen for setup, configuration and troubleshooting
(2.) On-- board Fault Detection and Diagnostics (FDD) that senses and alerts when the economizer is not
operating properly, per California Title 24.
(3.) Sensor failure loss of communication identification
(4.) Automatic sensor detection
(5.) Capabilities for use with multiple-- speed indoor fan systems
(6.) Utilize digital sensors: Dry bulb and Enthalpy
h. Economizer controller on EconoMi$er 2 models with RTU Open models shall be a 4--20mA design controlled
directly by the RTU Open controller. RTU Open meets California Title 24 Fault Detection & Diagnostic (FDD)
requirements.
i. Shall be capable of introducing up to 100% outdoor air.
j. Shall be equipped with a barometric relief damper capable of relieving up to 100% return air and contain
seals that meet ASHRAE 90.1 requirements.
k. Shall be designed to close damper(s) during loss-- of-- power situations with spring return built into motor.
l. Dry bulb outdoor air temperature sensor shall be provided as standard. Enthalpy sensor is also available on
factory installed only. Outdoor air sensor setpoint shall be adjustable and shall range from 40 to 100° F / 4 to
38° C. Additional sensor options shall be available as accessories.
m. The economizer controller shall also provide control of an accessory power exhaust unit function. Factory
set at 100%, with a range of 0% to 100%.
n. The economizer shall maintain minimum airflow into the building during occupied period and provide
design ventilation rate for full occupancy.
o. Dampers shall be completely closed when the unit is in the unoccupied mode.
p. Economizer controller shall accept a 2-- 10 Vdc CO2 sensor input for IAQ/DCV control. In this mode,
dampers shall modulate the outdoor air damper to provide ventilation based on the sensor input.
q. Compressor lockout temperature on W7220 is adjustable from - 45° F to 80° F, set at a factory default of
32° F. Others shall open at 35°F (2°C) and closes at 50°F (10°C).
r. Actuator shall be direct coupled to economizer gear. No linkage arms or control rods shall be acceptable.
3.
50KC
4.
5.
6.
7.
8.
9.
s. Economizer controller shall provide indications when in free cooling mode, in the DCV mode, or the exhaust
fan contact is closed.
Two-- Position Damper (Factory installed on 3 Phase Models Only. Field installed on all 3 and 1 Phase Models)
a. Damper shall be a Two-- Position Damper. Damper travel shall be from the full closed position to the field
adjustable %-- open setpoint.
b. Damper shall include adjustable damper travel from 25% to 100% (full open).
c. Damper shall include single or dual blade, gear driven dampers and actuator motor.
d. Actuator shall be direct coupled to damper gear. No linkage arms or control rods shall be acceptable.
e. Damper will admit up to 100% outdoor air for applicable rooftop units.
f. Damper shall close upon indoor (evaporator) fan shutoff and/or loss of power.
g. The damper actuator shall plug into the rooftop unit’s wiring harness plug. No hard wiring shall be required.
h. Outside air hood shall include aluminum water entrainment filter
Manual damper
a. Manual damper package shall consist of damper, air inlet screen, and rain hood which can be preset to admit up
to 50% outdoor air for year round ventilation.
Humidi-- MiZer Adaptive Dehumidification System (3 Phase Models Only).
a. The Humidi-- MiZer Adaptive Dehumidification System shall be factory-- installed and shall provide greater
dehumidification of the occupied space by two modes of dehumidification operations beside its normal
design cooling mode:
(1.) Subcooling mode further subcools the hot liquid refrigerant leaving the condenser coil when both
temperature and humidity in the space are not satisfied.
(2.) Hot gas reheat mode shall mix a portion of the hot gas from the discharge of the compressor with the hot
liquid refrigerant leaving the condenser coil to create a two--phase heat transfer in the system, resulting in a
neutral leaving-- air temperature when only humidity in the space is not satisfied.
(3.) Includes Head Pressure Controller.
Head Pressure Control Package
a. Controller shall control coil head pressure by condenser-- fan speed modulation or condenser-- fan cycling
and wind baffles.
b. Shall consist of solid-- state control and condenser-- coil temperature sensor to maintain condensing temperature between 90_F (32_C) and 110_F (43_C) at outdoor ambient temperatures down to - 20_F (-- 29_C).
Condenser Coil Hail Guard Assembly (Factory installed on 3 Phase Models Only. Field installed on all 3 and 1
Phase Models)
a. Shall protect against damage from hail.
b. Shall be louvered design.
Unit-- Mounted, Non-- Fused Disconnect Switch (Available on units with MOCP’s of 80 amps or less):
a. Switch shall be factory-- installed, internally mounted.
b. National Electric Code (NEC) and UL approved non-- fused switch shall provide unit power shutoff.
c. Shall be accessible from outside the unit
d. Shall provide local shutdown and lockout capability.
Convenience Outlet (3 Phase Models Only):
a. Powered convenience outlet.
(1.) Outlet shall be powered from main line power to the rooftop unit.
(2.) Outlet shall be powered from line side or load side of disconnect by installing contractor, as required
by code. If outlet is powered from load side of disconnect, unit electrical ratings shall be UL certified
and rated for additional outlet amperage.
(3.) Outlet shall be factory--installed and internally mounted with easily accessible 115--v female receptacle.
(4.) Outlet shall include 15 amp GFI receptacles with independent fuse protection.
(5.) Voltage required to operate convenience outlet shall be provided by a factory-- installed step-- down
transformer.
(6.) Outlet shall be accessible from outside the unit.
(7.) Outlet shall include a field-- installed “Wet in Use” cover.
b. Non-- Powered convenience outlet.
(1.) Outlet shall be powered from a separate 115/120v power source.
(2.) A transformer shall not be included.
(3.) Outlet shall be factory--installed and internally mounted with easily accessible 115--v female receptacle.
58
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
59
50KC
10.
(4.) Outlet shall include 15 amp GFI receptacles with independent fuse protection.
(5.) Outlet shall be accessible from outside the unit.
(6.) Outlet shall include a field-- installed “Wet in Use” cover.
Thru-- the-- Base Connectors:
a. Kits shall provide connectors to permit electrical connections to be brought to the unit through the unit basepan.
b. Minimum of four connection locations per unit.
Propeller Power Exhaust:
a. Power exhaust shall be used in conjunction with an integrated economizer.
b. Independent modules for vertical or horizontal return configurations shall be available.
c. Horizontal power exhaust is shall be mounted in return ductwork.
d. Power exhaust shall be controlled by economizer controller operation. Exhaust fans shall be energized when
dampers open past the 0-- 100% adjustable setpoint on the economizer control.
Roof Curbs (Vertical):
a. Full perimeter roof curb with exhaust capability providing separate air streams for energy recovery from the
exhaust air without supply air contamination.
b. Formed galvanized steel with wood nailer strip and shall be capable of supporting entire unit weight.
c. Permits installation and securing of ductwork to curb prior to mounting unit on the curb.
Thru-- the-- Bottom Utility Connectors:
a. Kit shall provide connectors to permit gas and electrical connections to be brought to the unit through the
basepan.
Outdoor Air Enthalpy Sensor:
a. The outdoor air enthalpy sensor shall be used to provide single enthalpy control. When used in conjunction
with a return air enthalpy sensor, the unit will provide differential enthalpy control. The sensor allows the
unit to determine if outside air is suitable for free cooling.
Return Air Enthalpy Sensor:
a. The return air enthalpy sensor shall be used in conjunction with an outdoor air enthalpy sensor to provide
differential enthalpy control.
Indoor Air Quality (CO2) Sensor:
a. Shall be able to provide demand ventilation indoor air quality (IAQ) control.
b. The IAQ sensor shall be available in duct mount, wall mount, or wall mount with LED display. The setpoint
shall have adjustment capability.
Smoke detectors (factory-- installed only):
a. Shall be a Four-- Wire Controller and Detector.
b. Shall be environmental compensated with differential sensing for reliable, stable, and drift-- free sensitivity.
c. Shall use magnet-- activated test/reset sensor switches.
d. Shall have tool-- less connection terminal access.
e. Shall have a recessed momentary switch for testing and resetting the detector.
f. Controller shall include:
(1.) One set of normally open alarm initiation contacts for connection to an initiating device circuit on a
fire alarm control panel.
(2.) Two Form-- C auxiliary alarm relays for interface with rooftop unit or other equipment.
(3.) One Form-- C supervision (trouble) relay to control the operation of the Trouble LED on a remote test/
reset station.
(4.) Capable of direct connection to two individual detector modules.
(5.) Can be wired to up to 14 other duct smoke detectors for multiple fan shutdown applications.
Winter start kit
a. Shall contain a bypass device around the low pressure switch.
b. Shall be required when mechanical cooling is required down to 25_F (-- 4_C).
c. Shall not be required to operate on an economizer when below an outdoor ambient of 40_F (4_C).
Time Guard
a. Shall prevent compressor short-- cycling by providing a 5-- minute delay (2 minutes) before restarting a
compressor after shutdown for any reason.
b. One device shall be required per compressor.
Electric Heat:
a. Heating Section
50KC
(1.) Heater element open coil resistance wire, nickel--chrome alloy, 0.29 inches inside diameter, strung through
ceramic insulators mounted on metal frame. Coil ends are staked and welded to terminal screw slots.
(2.) Heater assemblies are provided with integral fusing for protection of internal heater circuits not exceeding
48 amps each. Auto reset thermo limit controls, magnetic heater contactors (24 v coil) and terminal block
all mounted in electric heater control box (minimum 18 ga galvanized steel) attached to end of heater
assembly.
21. Hinged Access Panels
a. Shall provide easy access through integrated quarter turn latches.
b. Shall be on major panels of: filters, control box, fan motor and compressor.
Copyright 2015 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231
Edition Date: 01/15
Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.
60
Catalog No: 50KC ---4---6---03PD
Replaces: 50KC--- 4--- 6--- 02PD
Download PDF
Similar pages