Carrier 50RTP03-20 User Manual
Rooftop Water Source Heat Pumps
®
with PURON
Refrigerant (R-410A)
Installation, Start-Up, and
Service Instructions
AQUAZONE™
50RTP03-20
CONTENTS
Page
SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2
GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-34
Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2
Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
• STORAGE
•PROTECTION
•INSPECT UNIT
Step 3 — Locate Unit. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Step 4 — Mount the Unit . . . . . . . . . . . . . . . . . . . . . . . . . 8
Step 5 — Install Condensate Drain . . . . . . . . . . . . . . . 8
Step 6 — Make Piping Connections . . . . . . . . . . . . . . 8
• WATER LOOP APPLICATIONS
• GROUND-WATER APPLICATIONS
• GROUND-LOOP APPLICATIONS
Step 7 — Connect Electrical Wiring . . . . . . . . . . . . . . 9
• SUPPLY VOLTAGE
• 208-VOLT OPERATION
• BLOWER SELECTION
Step 8 — Connect Low Voltage Wiring . . . . . . . . . . 34
• THERMOSTAT CONNECTIONS
• WATER FREEZE PROTECTION
• AIR COIL FREEZE PROTECTION
• ACCESSORY CONNECTIONS
• WATER SOLENOID VALVES
PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .35,36
Complete C Control Jumper Settings. . . . . . . . . . . 35
Complete C Control DIP Switches. . . . . . . . . . . . . . 35
Deluxe D Control Jumper Settings . . . . . . . . . . . . . 35
Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 35
Deluxe D Control Accessory Relay
Configurations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
Water Valve (Slow Opening) . . . . . . . . . . . . . . . . . . . 36
Outside-Air Damper (OAD) . . . . . . . . . . . . . . . . . . . . 36
START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36-40
Operating Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37
Scroll Compressor Rotation. . . . . . . . . . . . . . . . . . . . . 37
Unit Start-Up Cooling Mode . . . . . . . . . . . . . . . . . . . . . 37
Unit Start-Up Heating Mode . . . . . . . . . . . . . . . . . . . . . 37
Unit Start-Up with WHSP Open Controls . . . . . . . . 38
Flow Regulation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
System Claening and Flushing . . . . . . . . . . . . . . . . . . 39
Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . . 40
Ground Coupled, Closed Loop and Plateframe
Heat Exchanger Well Systems . . . . . . . . . . . . . . . . 40
OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-43
Power Up Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
Page
Units with Aquazone™ Complete C Control . . . . . 40
Units with Aquazone Deluxe D Control. . . . . . . . . . 40
Units with WSHP Open Protocol . . . . . . . . . . . . . . . . 40
SYSTEM TEST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43-45
Test Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
Aquazone Deluxe D Control LED Indicators . . . . . 45
WSHP Open Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . 45
SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45,46
Filters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Water Coil
Condensate Drain Pans . . . . . . . . . . . . . . . . . . . . . . . . . 45
Refrigerant System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Condensate Drain Cleaning . . . . . . . . . . . . . . . . . . . . . 45
Air Coil Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
Checking System Charge . . . . . . . . . . . . . . . . . . . . . . . 46
Refrigerant Charging. . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . . . 46
Replacing the WSHP Open Controller’s
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . 47-49
Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Control Sensors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
APPENDIX A — WSHP OPEN SCREEN
CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . . . 50-55
START-UP CHECKLIST . . . . . . . . . . . . . . . . . . CL-1, CL-2
IMPORTANT: Read the entire instruction manual before
starting installation.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
SAFETY CONSIDERATIONS
Installation and servicing of air-conditioning equipment can
be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should
install, repair, or service air-conditioning equipment.
Untrained personnel can perform basic maintenance functions of cleaning coils and filters and replacing filters. All other
operations should be performed by trained service personnel.
When working on air-conditioning equipment, observe precautions in the literature, tags and labels attached to the unit, and
other safety precautions that may apply.
Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock or
other conditions which may cause personal injury or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The
qualified installer or agency must use factory-authorized kits or
accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when
installing.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
Catalog No. 04-53500070-01 Printed in U.S.A. Form 50RTP-1SI Pg 1 7-10 Replaces: New
Follow all safety codes. Wear safety glasses and work
gloves. Use quenching cloth for brazing operations. Have fire
extinguisher available. Read these instructions thoroughly and
follow all warnings or cautions attached to the unit. Consult
local building codes and the National Electrical Code (NEC)
for special installation requirements.
Understand the signal words — DANGER, WARNING,
and CAUTION. DANGER identifies the most serious hazards
which will result in severe personal injury or death. WARNING signifies hazards that could result in personal injury or
death. CAUTION is used to identify unsafe practices, which
would result in minor personal injury or product and property
damage.
Recognize safety information. This is the safety-alert
symbol ( ). When you see this symbol on the unit and in
instructions or manuals, be alert to the potential for personal
injury.
WARNING
Electrical shock can cause personal injury and death. Shut
off all power to this equipment during installation. There
may be more than one disconnect switch. Tag all disconnect locations to alert others not to restore power until work
is completed.
CAUTION
This system uses R-410A, which has higher pressures than
R-22 and other refrigerants. No other refrigerant may be
used in this system. Suction tubing design pressure is
445 psig (3068 kPa) and liquid tubing design pressure
is 656 psig (4522 kPa). Failure to use gage set, hoses,
and recovery systems designed to handle R-410A
refrigerant may result in personal injury and equipment
damage. If unsure about equipment, consult the equipment
manufacturer.
GENERAL
This Installation and Start-Up Instructions literature is for
Aquazone™ rooftop water source heat pump systems.
Rooftop water source heat pumps (WSHP) are single-package outdoor units with electronic controls designed for yearround cooling and heating.
IMPORTANT: The installation of water source heat pump
units and all associated components, parts, and accessories
which make up the installation shall be in accordance with
the regulations of ALL authorities having jurisdiction and
MUST conform to all applicable codes. It is the responsibility of the installing contractor to determine and comply
with ALL applicable codes and regulations.
INSTALLATION
Step 1 — Check Jobsite —
maintenance instructions are provided with each unit. Before
unit start-up, read all manuals and become familiar with the
unit and its operation. Thoroughly check out the system before
operation. Complete the inspections and instructions listed
below to prepare a unit for installation. See Table 1 for unit
physical data.
Installation, operation and
CAUTION
To avoid equipment damage, do not use these units as a
source of heating or cooling during the construction process. The mechanical components and filters used in these
units quickly becomes clogged with construction dirt and
debris which may cause system damage.
Step 2 — Check Unit — Upon receipt of shipment at
the jobsite, carefully check the shipment against the bill of
lading. Make sure all units have been received. Inspect the carton or crating of each unit, and inspect each unit for damage.
Ensure the shipping company makes proper notation of any
shortages or damage on all copies of the freight bill. Concealed
damage not discovered during unloading must be reported to
the shipping company within 15 days of receipt of shipment.
NOTE: It is the responsibility of the purchaser to file all
necessary claims with the shipping company.
1. Verify unit is correct model for entering water temperature of job.
2. Be sure to provide freeze protection for piping, as required. Well water applications are especially susceptible
to freezing.
3. Be sure the installation location is isolated from sleeping
areas, private offices and other acoustically sensitive
spaces.
4. Check local codes to be sure a secondary drain pan is not
required under the unit.
5. Be sure unit is mounted at a height sufficient to provide
an adequate slope of the condensate lines. If an appropriate slope cannot be achieved, a field-supplied condensate
pump may be required.
6. Provide sufficient space for duct connection.
7. Provide adequate clearance for filter replacement and
drain pan cleaning. Do not allow piping, conduit, etc. to
block filter access.
8. Provide sufficient access to allow maintenance and
servicing of the fan and fan motor, compressor and coils.
9. Provide an unobstructed path to the unit. Space should be
sufficient to allow removal of unit if necessary.
10. Provide ready access to water valves and fittings, and
screwdriver access to unit side panels, discharge collar,
and all electrical connections.
11. Where access to side panels is limited, pre-removal of the
control box side mounting screws may be necessary for
future servicing.
STORAGE — If the equipment is not installed immediately
upon its arrival at the jobsite, it should be left in its shipping
carton and stored in a clean, dry area of the building or in a
warehouse. Units must be stored in an upright position at all
times. If unit stacking is necessary, stack 50RTP03-10 units a
maximum of 2 high. Do not stack units larger than 50RTP10.
Do not remove any equipment from its shipping package until
it is needed.
PROTECTION — Once the units are properly positioned on
the jobsite, they must be covered with either a shipping carton,
vinyl film, or an equivalent protective covering. Open ends of
pipes stored on the jobsite must be capped. This precaution is
especially important in areas where painting, plastering, or
spraying of fireproof material, etc. is not yet complete. Foreign
material that is allowed to accumulate within the units can prevent proper start-up and necessitate costly clean-up operations.
Before installing any of the system components, be sure to
examine each pipe, fitting, and valve, and remove any dirt or
foreign material found in or on these components.
2
5. Inspect all electrical connections. Be sure connections are
CAUTION
clean and tight at the terminals.
6. Compressors are internally spring-mounted. Compressors
DO NOT store or install units in corrosive environments or
in locations subject to temperature or humidity extremes
(e.g., attics, garages, rooftops, etc.). Corrosive conditions
and high temperature or humidity can significantly reduce
performance, reliability, and service life. Always move
units in an upright position. Tilting units on their sides may
cause equipment damage.
equipped with external spring vibration isolators must
have bolts loosened and shipping clamps removed.
7. Remove any blower support cardboard from inlet of the
blower if present.
8. Locate and verify any accessory kit located in compressor
section.
9. Remove any access panel screws that may be difficult to
INSPECT UNIT — To prepare the unit for installation, complete the procedures listed below:
1. Compare the electrical data on the unit nameplate with
ordering and shipping information to verify that the
correct unit has been shipped.
2. Verify that the unit is the correct model for the entering
water temperature of the job.
3. Do not remove the packaging until the unit is ready for
installation.
4. Verify that the refrigerant tubing is free of kinks or dents,
and that it does not touch other unit components.
remove once unit is installed.
Step 3 — Locate Unit — The following guidelines
should be considered when choosing a location for WSHP. Refer to Fig. 1-3 for unit dimensional data. See Fig. 4 for accessory roof curb dimensional data.
• Provide sufficient space for water, electrical and duct
connections
• Locate unit in an area that allows for easy access and
removal of filter and access panels
• Allow enough space for service personnel to perform
maintenance
Table 1 — Physical Data — Aquazone™ 50RTP03-20 Units
UNIT 50RTP 03 04 05 06 08 10 12 14 20
Compressor (qty) Scroll (1) Scroll (2)
Factory Charge R-410A (oz) 64 84 120 132 108 120 130 192 300
Blower Motor
Motor Quantity 1
Standard Motor (hp) 1111.523335
Large Motor (hp) N/A 1.5 1.5 2 3 5 5 5 7.5
Blower(s)
Number of Blowers 12
Blower Wheel Size (dia x w) 10 x 6 2 x 12 15 x 11 15 x 15 15 x 11
V-belt size, Std drive A29 A30 A32 AX33 B40 BX42 BX46 B39 BX40
Water Connection Size
IPT (in.)
Coax Volume
Volume (US Gallons) 0.61 0.77 1.11 1.30 1.69 2.29 2.68 3.83 4.77
Condensate Connection Size
FPT (in.) 1
Air Coil Data
Air Coil Total Face Area (sq ft) 5 7 9.33 10.5 20
Filter, Standard, Qty...Size (in.) 4...16 x 20 6...16 x 20
Operating Weight (lb) 735 785 835 880 1080 1125 1175 1770 1960
Shipping Weight (lb) 750 800 850 900 1100 1150 1200 1800 2000
Corner Weights (lb)
Front-Left 184 196 208.5 224 292 303.5 320 479 530
Front-Right 259 276 293.5 298 380 395.5 406 623 690
Rear-Left 108.5 117 124.5 134 193 202 212.5 315 350
Rear-Right 183.5 196 208.5 224 215 224 236.5 353 390
Curb, Installed (lb) 83 94 128
IPT — Iron (National) Pipe Thread
3
/
4
11
1
/
4
11/
2
2
8...16 x 20,
2...20 x 20
3
NOTES:
1. All dimensions are in inches.
2. Carrier works continuously to improve its products. As a result, the design
and specification of each product at the time of order may be changed with-
out notice.
3. Assembly tolerances ±
1
/
8
inch.
A50-8267.eps
Fig. 1 — 50RTP03-06 Unit Dimensions
50RTP
UNITS
DIMENSIONS (in.)
Outside Air
Opening Size
Wate r
In/Out (FPT)
Condensate
Drain
03,04 12.57 x 30.00
3
/
4
1
05 12.57 x 30.00 1 1
06 12.57 x 30.00 1
1
/
4
1
4
NOTES:
1. All dimensions are in inches.
2. Carrier works continuously to improve its products. As a result, the design
and specification of each product at the time of order may be changed with-
out notice.
3. Assembly tolerances ±
1
/
8
inch.
A50-8268.eps
Fig. 2 — 50RTP08-12 Unit Dimensions
50RTP
UNITS
DIMENSIONS (in.)
Outside Air
Opening Size
Water
In/Out (FPT)
Condensate
Drain
08 18.95 x 36.00 1
1
/
4
1
10,12 18.95 x 36.00 1
1
/
2
1
5
Fig. 3 — 50RTP14,20 Unit Dimensions
NOTES:
1. All dimensions are in inches.
2. Carrier works continuously to improve its products. As a result, the design
and specification of each product at the time of order may be changed with-
out notice.
3. Assembly tolerances ±
1
/
8
inch.
A50-8269.eps
50RTP
UNITS
DIMENSIONS (in.)
Outside Air
Opening Size
Water
In/Out (FPT)
Condensate
Drain
14,20 18.95 x 74.00 2 1
6
Fig. 4 — 50RTP Roof Curb Dimensions
ROOF CURB
DIMENSIONS (in.)
ABCEF
Return Air Transition Supply Air Transition
Exterior
Dimensions
GH J K LM N P Q R
50RTPACURBAAAA 35.250 72.25 18.00 1.50 12.50 22.00 16.00 39.250 33.250 27.00 21.00 39.250 33.250 39.250 76.25
50RTPACURBBAAA 41.250 82.25 21.00 1.50 12.50 25.00 19.00 45.250 39.250 27.00 21.00 45.250 39.250 45.250 86.25
50RTPACURBCAAA 78.875 82.25 21.00 5.00 9.00 25.00 19.00 82.875 76.875 27.00 21.00 82.875 76.875 82.875 86.25
7
Step 4 — Mount the Unit — For proper operation,
FLASHING
ROOF
CURB
GASKET
50 RTP
UNIT
Fig. 5 — 50RTP Curb Installation
units must be mounted on a roof curb as shown in Fig. 5. Roof
curn dimensional data is shown in Fig. 4. Follow these guidelines when installing the roof curb:
1. Set unit on curb.
2. Align unit so that its return and supply air direction match
the return and supply air opening in the roof curb frame.
3. Run both the return and supply loop piping, as well as the
electrical supply line, through the pipe chase provided in
the curb.
Step 5 — Install Condensate Drain
1. Install a condensate trap at each unit with the top of
the trap positioned below the unit condensate drain
connection.
2. Design the length of the trap (water seal) based on the
amount of positive or negative pressure on the drain pan.
As a rule, 1 in. of trap is required for each inch of negative pressure on the unit.
Note that condensate is allowed to drain onto the roof.
Step 6 — Make Piping Connections — Depend-
ing on the application, there are 3 types of WSHP piping systems to choose from: water loop, ground-water and ground
loop. Refer to Piping Section of Carrier System Design Manual
for additional information.
All WSHP units use low temperature soldered female pipe
thread fittings for water connections to prevent annealing and
out-of-round leak problems which are typically associated with
high temperature brazed connections. Refer to Table 1 for connection sizes. When making piping connections, consider the
following:
• Use a backup wrench when making screw connections to
unit to prevent internal damage to piping.
• Insulation may be required on piping to avoid condensa-
tion in the case where fluid in loop piping operates at
temperatures below dew point of adjacent air.
• Piping systems that contain steel pipes or fittings may
be subject to galvanic corrosion. Dielectric fittings may
be used to isolate the steel parts of the system to avoid
galvanic corrosion.
WATER LOOP APPLICATIONS — Water loop applications
usually include a number of units plumbed to a common piping system. Maintenance to any of these units can introduce air
into the piping system. Therefore, air elimination equipment
comprises a major portion of the mechanical room plumbing.
The flow rate is usually set between 2.25 and 3 gpm per ton
of cooling capacity. For proper maintenance and servicing,
pressure-temperature (P/T) ports are necessary for temperature
and flow verification.
In addition to complying with any applicable codes, consider the following for system piping:
• Piping systems utilizing water temperatures below
50 F require
1
/2-in. closed cell insulation on all piping
surfaces to eliminate condensation.
• All plastic to metal threaded fittings should be avoided
due to the potential to leak. Use a flange fitted substitute.
• Teflon tape thread sealant is recommended to minimize
internal fouling of the heat exchanger.
• Use backup wrench. Do not overtighten connections.
• Route piping to avoid service access areas to unit.
• The piping system should be flushed prior to operation to
remove dirt and foreign materials from the system.
GROUND-WATER APPLICATIONS — In addition to complying with any applicable codes, consider the following for
system piping:
• Install shut-off valves for servicing.
• Install pressure-temperature plugs to measure flow and
temperature.
• Boiler drains and other valves should be connected using
a “T” connector to allow acid flushing for the heat
exchanger.
• Do not overtighten connections.
• Route piping to avoid service access areas to unit.
• Use PVC SCH80 or copper piping material.
NOTE: PVC SCH40 should not be used due to system high
pressure and temperature extremes.
Water Supply and Quantity
— Check water supply. Water
supply should be plentiful and of good quality. See Table 2 for
water quality guidelines.
IMPORTANT: Failure to comply with the above required
water quality and quantity limitations and the closedsystem application design requirements may cause damage
to the tube-in-tube heat exchanger that is not the responsibility of the manufacturer.
In all applications, the quality of the water circulated
through the heat exchanger must fall within the ranges listed in
the Water Quality Guidelines table. Consult a local water treatment firm, independent testing facility, or local water authority
for specific recommendations to maintain water quality within
the published limits.
GROUND-LOOP APPLICATIONS — Temperatures between
25 to 110 F and a cooling capacity of 2.25 to 3 gpm of flow per
ton is recommended. In addition to complying with any applicable codes, consider the following for system piping:
• Piping materials should be limited to only polyethylene
fusion in the buried sections of the loop.
• Galvanized or steel fittings should not be used at any
time due to corrosion.
• All plastic to metal threaded fittings should be avoided
due to the potential to leak. Use a flange fitted substitute.
• Do not overtighten connections.
• Route piping to avoid service access areas to unit.
• Pressure-temperature (P/T) plugs should be used to mea-
sure flow of pressure drop.
8
Table 2 — Water Quality Guidelines
CONDITION
Scaling Potential — Primary Measurement
Above the given limits, scaling is likely to occur. Scaling indexes should be calculated using the limits below.
pH/Calcium
Hardness Method
Index Limits for Probable Scaling Situations (Operation outside these limits is not recommended.)
Scaling indexes should be calculated at 150 F for direct use and HWG applications, and at 90 F for indirect HX use. A monitoring plan should be
implemented.
Ryznar Stability Index
Langelier Saturation Index
Iron Fouling
2+
(Ferrous)
Iron Fe
(Bacterial Iron Potential)
Iron Fouling
Corrosion Prevention††
pH
Hydrogen Sulfide (H
Ammonia Ion as Hydroxide,
Chloride, Nitrate and Sulfate
Compounds
Maximum Chloride Levels Maximum allowable at maximum water temperature.
Erosion and Clogging
Particulate Size and Erosion
HWG — Hot Water Generator
HX — Heat Exchanger
N/A — Design Limits Not Applicable Considering Recirculating
NR — Application Not Recommended
SS — Stainless Steel
*Heat exchanger materials considered are copper, cupronickel, 304 SS (stainless
†Closed recirculating system is identified by a closed pressurized piping system.
**Recirculating open wells should observe the open recirculating design
Potable Water
steel), 316 SS, titanium.
considerations.
2
S)
LEGEND
HX
MATERIAL*
All N/A pH < 7.5 and Ca Hardness, <100 ppm
All N/A
All N/A
All N/A
All N/A
All
All N/A
All N/A
Copper N/A
CuproNickel N/A <150 ppm NR NR
304 SS N/A <400 ppm <250 ppm <150 ppm
316 SS N/A <1000 ppm <550 ppm <375 ppm
Titanium N/A >1000 ppm >550 ppm >375 ppm
All
CLOSED RECIRCULATING† OPEN LOOP AND RECIRCULATING WELL**
6.0 - 7.5
–0.5 to +0.5
<0.2 ppm (Ferrous)
<0.5 ppm of Oxygen
6 - 8.5
<0.5 ppm
<0.5 ppm
6 - 8.5
Monitor/treat as needed.
<10 ppm of particles and a max-
imum velocity of 6 fps. Filtered
for maximum
800 micron size.
If >7.5 minimize steel pipe use.
Based upon 150 F HWG and direct well, 85 F indirect well HX.
2+
If Fe
(ferrous) >0.2 ppm with pH 6 - 8, O2<5 ppm check for iron bacteria.
Minimize steel pipe below 7 and no open tanks with pH <8.
At H
S>0.2 ppm, avoid use of copper and cupronickel piping or HXs.
2
Copper alloy (bronze or brass) cast components are okay to <0.5 ppm.
50 F (10 C) 75 F (24 C) 100 F (38 C)
<20 ppm NR NR
<10 ppm (<1 ppm “sand free” for reinjection) of particles and a maximum velocity of 6
fps. Filtered for maximum 800 micron size. Any particulate that is not removed can
potentially clog components.
††If the concentration of these corrosives exceeds the maximum allowable level,
then the potential for serious corrosion problems exists.
Sulfides in the water quickly oxidize when exposed to air, requiring that no agitation occur as the sample is taken. Unless tested immediately at the site, the sample will require stabilization with a few drops of one Molar zinc acetate solution,
allowing accurate sulfide determination up to 24 hours after sampling. A low pH
and high alkalinity cause system problems, even when both values are within
ranges shown. The term pH refers to the acidity, basicity, or neutrality of the water
supply. Below 7.0, the water is considered to be acidic. Above 7.0, water is con-
sidered to be basic. Neutral water contains a pH of 7.0.
NOTE: To convert ppm to grains per gallon, divide by 17. Hardness in mg/l is equivalent to ppm.
If <–0.5 minimize steel pipe use.
Above this level deposition will occur.
Rotten egg smell appears at 0.5 ppm level.
Step 7 — Connect Electrical Wiring
WARNING
Electrical shock can cause personal injury and death. Shut
off all power to this equipment during installation. There
may be more than one disconnect switch. Tag all disconnect locations to alert others not to restore power until work
is completed.
CAUTION
Use only copper conductors for field-installed electrical
wiring. Unit terminals are not designed to accept other
types of conductors.
All field installed wiring, including the electrical ground,
MUST comply with the National Electrical Code (NEC) as
well as applicable local codes. In addition, all field wiring must
conform to the Class II temperature limitations described in the
NEC.
Refer to unit wiring diagrams in Fig. 6-16 for a schematic of
the field connections which must be made by the installing (or
electrical) contractor.
Consult the unit wiring diagram located on the inside of the
compressor access panel to ensure proper electrical hookup.
The installing (or electrical) contractor must make the field
connections when using field-supplied disconnect.
Operating voltage must be the same voltage and phase as
shown in electrical data shown in Table 3.
Make all final electrical connections with a length of flexible conduit to minimize vibration and sound transmission to
the building.
SUPPLY VOLTAGE — Operating voltage to unit must be
within voltage range indicated on unit nameplate.
On 3-phase units, voltages under load between phases must
be balanced within 2%. Use the following formula to determine the percentage voltage imbalance:
% Voltage Imbalance
= 100 x
max voltage deviation from average voltage
average voltage
9
Example: Supply voltage is 460-3-60.
AB = 452 volts
BC = 464 volts
AC = 455 volts
Average Voltage =
452 + 464 + 455
1371
=
3
3
= 457
Determine maximum deviation from average voltage:
(AB) 457 – 452 = 5 v
(BC) 464 – 457 = 7 v
(AC) 457 – 455 = 2 v
Maximum deviation is 7 v.
Determine percent voltage imbalance.
% Voltage Imbalance = 100 x
7
457
= 1.53%
This amount of phase imbalance is satisfactory as it is
below the maximum allowable 2%.
Operation on improper line voltage or excessive phase
imbalance constitutes abuse and may cause damage to electrical components.
NOTE: If more than 2% voltage imbalance is present, contact
local electric utility.
208-VOLT OPERATION — All 208-230 volt units are factory
wired for 208 volts. The transformers may be switched to
230-volt operation (as illustrated on the wiring diagram) by
switching the red (208 volt) wire with the orange (230 volt)
wire at the L1 terminal.
BLOWER SELECTION — All water source heat pumps are
factory set with the appropriate motor and sheave combination
to achieve the desired airflow performance. Performance is
selected by matching the desired performance with the appropriate region in Tables 4-12.
NOTE: Factory-installed sheaves are field adjustable. Refer to
Tables 4-12 for adjustment points.
Table 3 — Electrical Data
50RTP
UNIT SIZE
03
04
05
06
08
10
12
VOLTAGE
CODE
5 208-3-60 197/254 A,B,C 1 10.4 73.0 1 4.0 1.0 14.4 17.0 25
6 460-3-60 414/506 A,B,C 1 5.8 38.0 1 2.0 1.0 7.8 9.3 15
1 575-3-60 518/633 A,B,C 1 3.8 36.5 1 1.4 1.0 5.2 6.2 15
5 208-3-60 197/254
6 460-3-60 414/506
1 575-3-60 518/633
5 208-3-60 197/254
6 460-3-60 414/506
1 575-3-60 518/633
5 208-3-60 197/254
6 460-3-60 414/506
1 575-3-60 518/633
5 208-3-60 197/254
6 460-3-60 414/506
1 575-3-60 518/633
5 208-3-60 197/254
6 460-3-60 414/506
1 575-3-60 518/633
5 208-3-60 197/254
6 460-3-60 414/506
1 575-3-60 518/633
VOLTAGE
(V-Ph-Hz)
MIN/MAX
VOLTAGE
BLOWER
OPTION
A,B,C 1 13.7 83.1 1 4.0 1.0 17.7 21.1 35
D,E 1 13.7 83.1 1 5.0 1.5 18.7 22.1 35
A,B,C 1 6.2 41.0 1 2.0 1.0 8.2 9.8 15
D,E 1 6.2 41.0 1 2.4 1.5 8.6 10.1 15
A,B,C 1 4.8 33.0 1 1.4 1.0 6.2 7.4 15
D,E 1 4.8 33.0 1 1.9 1.5 6.7 7.9 15
A,B,C 1 15.6 110.0 1 4.0 1.0 19.6 23.5 40
D,E 1 15.6 110.0 1 5.0 1.5 20.6 24.5 40
A,B,C 1 7.8 52.0 1 2.0 1.0 9.8 11.8 15
D,E 1 7.8 52.0 1 2.4 1.5 10.2 12.2 15
A,B,C 1 5.8 38.9 1 1.4 1.0 7.2 8.7 15
D,E 1 5.8 38.9 1 1.9 1.5 7.7 9.2 15
A,B,C 1 20.5 155.0 1 5.0 1.5 25.5 30.6 50
E 1 20.5 155.0 1 6.2 2.0 26.7 31.8 50
A,B,C 1 9.6 75.0 1 2.4 1.5 12.0 14.4 20
E 1 9.6 75.0 1 3.1 2.0 12.7 15.1 20
A,B,C 1 7.6 54.0 1 1.9 1.5 9.5 11.4 15
E 1 7.6 54.0 1 2.3 2.0 9.9 11.8 15
A,B,C 2 13.7 83.1 1 6.2 2.0 33.6 37.0 50
E 2 13.7 83.1 1 9.2 3.0 36.6 40.0 50
A,B,C 2 6.2 41.0 1 3.1 2.0 15.5 17.0 20
E 2 6.2 41.0 1 4.3 3.0 16.7 18.3 20
A,B,C 2 4.8 33.0 1 2.3 2.0 11.9 13.1 15
E 2 4.8 33.0 1 3.4 3.0 13.0 14.2 15
A,B,C 2 15.6 110.0 1 9.2 3.0 40.4 44.3 60
E 2 15.6 110.0 1 14.1 5.0 45.3 49.2 60
A,B,C 2 7.8 52.0 1 4.3 3.0 19.9 21.9 25
E 2 7.8 52.0 1 7.0 5.0 22.6 24.6 30
A,B,C 2 5.8 38.9 1 3.4 3.0 15.0 16.5 20
E 2 5.8 38.9 1 5.2 5.0 16.8 18.3 20
A,B,C 2 20.5 155.0 1 9.2 3.0 50.2 55.3 80
D,E 2 20.5 155.0 1 14.1 5.0 55.1 60.2 80
A,B,C 2 9.6 75.0 1 4.3 3.0 23.5 25.9 35
D,E 2 9.6 75.0 1 7.0 5.0 26.2 28.6 35
A,B,C 2 7.6 54.0 1 3.4 3.0 18.6 20.5 25
D,E 2 7.6 54.0 1 5.2 5.0 20.4 22.3 25
COMPRESSOR MOTOR TOTAL
Qty RLA LRA Qty FLA Hp
UNIT
FLA
MCA
MAX
FUSE/
HACR
10
Table 3 — Electrical Data (cont)
50RTP
UNIT SIZE
14
20
FLA — Full Load Amps
HACR — Heating, Air Conditioning, and Refrigeration
LRA — Locked Rotor Amps
MCA — Minimum Circuit Amps
RLA — Rated Load Amps
VOLTAGE
CODE
5 208-3-60 197/254
6 460-3-60 414/506
1 575-3-60 518/633
5 208-3-60 197/254
6 460-3-60 414/506
1 575-3-60 518/633
LEGEND
VOLTAGE
(V-Ph-Hz)
MIN/MAX
VOLTAGE
BLOWER
OPTION
A,B,C 2 23.2 164.0 1 9.2 3.0 55.6 61.4 80
D,E 2 23.2 164.0 1 14.1 5.0 60.5 66.3 80
A,B,C 2 11.2 75.0 1 4.3 3.0 26.7 29.5 40
D,E 2 11.2 75.0 1 7.0 5.0 29.4 32.2 40
A,B,C 2 7.9 54.0 1 3.4 3.0 19.2 21.2 30
D,E 2 7.9 54.0 1 5.2 5.0 21.0 23.0 30
A,B,C 2 30.1 225.0 1 14.1 5.0 74.3 81.8 110
D,E 2 30.1 225.0 1 21.7 7.5 81.9 89.4 110
A,B,C 2 16.7 114.0 1 7.0 5.0 40.4 44.6 60
D,E 2 16.7 114.0 1 10.0 7.5 43.4 47.6 60
A,B,C 2 12.2 80.0 1 5.2 5.0 29.6 32.6 45
D,E 2 12.2 80.0 1 7.7 7.5 32.1 35.1 45
Table 4 — 50RTP03 Blower Performance Data
AIRFLOW
(cfm)
900
1000
1100
1200
1300
1400
1500
bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard
Motor, C = High RPM/Standard Motor
ESP
bhp 0.10 0.13 0.16 0.17 0.19 0.22 0.24 0.26 0.28 0.30 0.33 0.35 0.37 0.40 0.44 0.47
Sheave/MotorBBBAAAAAAACCCCCC
rpm 552 615 665 715 765 820 875 925 965 1010 1055 1100 1140 1180 1220 1260
Turns Open 4.5 3.5 3.0 4.5 4.0 3.5 2.5 2.0 1.5 1.0 3.0 2.5 2.0 2.0 1.5 1.0
bhp 0.16 0.17 0.19 0.21 0.23 0.25 0.28 0.30 0.33 0.36 0.40 0.43 0.46 0.49 0.52 0.55
Sheave/MotorBBAAAAAAAACCCCCC
rpm 615 655 695 740 790 845 900 940 985 1030 1070 1115 1150 1190 1230 1265
Turns Open 3.5 3.0 5.0 4.0 3.5 3.0 2.0 1.5 1.0 0.5 3.0 2.5 2.0 1.5 1.5 1.0
bhp 0.22 0.23 0.25 0.29 0.32 0.34 0.35 0.36 0.38 0.41 0.44 0.48 0.50 0.53 0.56 0.59
Sheave/MotorBAAAAAAAACCCCCCC
rpm 685 725 765 810 855 895 940 985 1025 1065 1105 1145 1180 1215 1250 1285
Turns Open 2.5 5.0 4.0 3.5 2.5 2.5 1.5 1.0 0.5 3.0 2.5 2.0 1.5 1.5 1.0 0.5
bhp 0.26 0.27 0.30 0.33 0.36 0.39 0.42 0.44 0.48 0.51 0.54 0.57 0.60 0.62 0.65 0.69
Sheave/MotorAAAAAAAACCCCCCCC
rpm 710 740 785 830 880 920 965 1005 1045 1085 1125 1160 1195 1230 1265 1300
Turns Open 5.0 4.5 3.5 3.0 2.5 2.0 1.0 0.5 3.5 3.0 2.5 2.0 1.5 1.0 1.0 0.5
bhp 0.30 0.33 0.36 0.40 0.42 0.44 0.46 0.50 0.55 0.61 0.65 0.68 0.71 0.74 0.76 0.79
Sheave/MotorAAAAAAAACCCCCCCC
rpm 750 790 830 870 910 950 990 1030 1065 1105 1140 1175 1210 1245 1280 1315
Turns Open 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 3.0 2.5 2.0 1.5 1.5 1.0 0.5 0.0
bhp 0.40 0.42 0.44 0.47 0.50 0.53 0.56 0.60 0.64 0.67 0.70 0.72 0.75 0.79 0.84 0.88
Sheave/MotorAAAAAAACCCCCCCCC
rpm 820 850 875 915 950 990 1025 1065 1100 1135 1170 1205 1235 1270 1305 1335
Turns Open 3.0 2.5 2.5 2.0 1.5 1.0 0.5 3.0 2.5 2.0 2.0 1.5 1.0 0.5 0.5 0.0
bhp 0.45 0.47 0.50 0.52 0.55 0.59 0.64 0.69 0.74 0.77 0.80 0.83 0.86 0.90 0.93 —
Sheave/MotorAAAAAACCCCCCCCC—
rpm 860 885 920 955 985 1020 1055 1090 1125 1160 1190 1225 1255 1290 1320 —
Turns Open 2.5 2.0 2.0 1.5 1.0 0.5 3.0 2.5 2.0 2.0 1.5 1.0 1.0 0.5 0.0 —
LEGEND
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)
COMPRESSOR MOTOR TOTAL
Qty RLA LRA Qty FLA Hp
2. Unit shipped with standard drive package with drive sheave 2.5
turns open unless otherwise requested. Field adjustment may
be required for specified CFM.
3. ISO/AHRI rating point with standard drive package and drive
sheave open 3.0 turns at .30 ESP.
4. Performance data does not include drive losses and is based
on sea level conditions.
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,
rated at 208 volts for 208-230 volt units.
UNIT
FLA
MCA
MAX
FUSE/
HACR
11
Table 5 — 50RTP04 Blower Performance Data
AIRFLOW
(cfm)
1200
1300
1400
1500
1600
1700
1800
1900
2000
bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard
Motor, C = High RPM/Standard Motor, D = Standard RPM/
Large Motor, E = High RPM/Large Motor
ESP
bhp 0.27 0.31 0.34 0.37 0.40 0.42 0.45 0.48 0.52 0.55 0.58 0.60 0.63 0.66 0.70 0.73
Sheave/MotorBBAAAAAAAAACCCCC
rpm 750 800 845 890 935 975 1015 1055 1095 1135 1170 1205 1240 1275 1310 1345
Turns Open 5.0 4.0 5.0 4.0 3.5 3.0 2.5 1.5 1.0 0.5 0.0 3.0 2.5 2.0 1.5 1.5
bhp 0.35 0.38 0.41 0.43 0.45 0.47 0.53 0.59 0.64 0.67 0.70 0.72 0.75 0.78 0.80 0.83
Sheave/MotorBAAAAAAAAACCCCCC
rpm 810 850 890 930 970 1010 1050 1090 1125 1160 1195 1230 1265 1300 1330 1365
Turns Open 4.0 4.5 4.0 3.5 3.0 2.5 2.0 1.0 0.5 0.0 3.0 3.0 2.5 2.0 1.5 1.0
bhp 0.43 0.46 0.49 0.52 0.55 0.58 0.62 0.66 0.68 0.71 0.74 0.77 0.82 0.86 0.91 0.96
Sheave/MotorAAAAAAAAACCCCCCC
rpm 865 900 935 970 1010 1045 1085 1120 1155 1190 1220 1255 1290 1320 1355 1390
Turns Open 4.5 4.0 3.5 3.0 2.5 2.0 1.5 0.5 0.0 3.5 3.0 2.5 2.0 1.5 1.0 1.0
bhp 0.49 0.52 0.54 0.57 0.62 0.68 0.73 0.76 0.79 0.82 0.85 0.89 0.92 0.96 1.00 1.05
Sheave/MotorAAAAAAAACCCCCCEE
rpm 910 945 975 1010 1045 1080 1115 1150 1180 1215 1250 1280 1310 1345 1375 1405
Turns Open 3.5 3.5 3.0 2.5 2.0 1.5 1.0 0.0 3.5 3.0 2.5 2.0 2.0 1.5 1.0 0.5
bhp 0.62 0.65 0.67 0.70 0.72 0.75 0.78 0.82 0.86 0.89 0.94 1.00 1.04 1.08 1.13 1.18
Sheave/MotorAAAAAAACCCCEEEEE
rpm 960 985 1015 1050 1080 1115 1145 1175 1210 1240 1275 1305 1335 1365 1395 1425
Turns Open 3.0 2.5 2.5 2.0 2.0 1.5 0.5 3.5 3.0 2.5 2.5 2.0 1.5 1.0 0.5 0.5
bhp 0.74 0.77 0.80 0.83 0.85 0.88 0.90 0.93 0.95 1.00 1.06 1.11 1.17 1.22 1.27 1.31
Sheave/MotorAAAAAACCCEEEEEEE
rpm 1000 1030 1060 1090 1115 1150 1180 1210 1240 1270 1300 1330 1360 1390 1420 1445
Turns Open 2.5 2.0 1.5 1.5 1.0 1.0 3.5 3.0 3.0 2.5 2.0 1.5 1.0 1.0 0.5 0.0
bhp 0.83 0.87 0.90 0.94 0.98 1.02 1.06 1.09 1.14 1.18 1.23 1.28 1.32 1.36 — —
Sheave/MotorAAAAAEEEEEEEEE——
rpm 1050 1075 1100 1125 1155 1185 1215 1245 1275 1300 1330 1360 1385 1415 — —
Turns Open 2.0 1.5 1.0 0.5 0.5 3.5 3.0 2.5 2.5 2.0 1.5 1.0 1.0 0.5 — —
bhp 0.971.001.031.081.121.161.201.251.291.341.381.42————
Sheave/MotorADDEEEEEEEEE————
rpm 1100 1120 1145 1175 1200 1225 1250 1280 1305 1335 1360 1385 ————
Turns Open1.01.00.53.53.03.02.52.02.01.51.01.0————
bhp 1.131.171.201.241.281.321.361.401.44———————
Sheave/MotorDDEEEEEEE———————
rpm 1145 1170 1190 1215 1235 1260 1290 1315 1340 — — — ————
Turns Open0.50.53.03.02.52.52.01.51.5———————
LEGEND
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)
2. Unit shipped with standard drive package with drive sheave 2.5
turns open unless otherwise requested. Field adjustment may
be required for specified CFM.
3. ISO/AHRI rating point with standard drive package and drive
sheave open 3.0 turns at .30 ESP.
4. Performance data does not include drive losses and is based
on sea level conditions.
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,
rated at 208 volts for 208-230 volt units.
12
Table 6 — 50RTP05 Blower Performance Data
AIRFLOW
(cfm)
1500
1600
1700
1800
1900
2000
2100
2200
2300
2400
2500
bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard
Motor, C = High RPM/Standard Motor, D = Standard RPM/
Large Motor, E = High RPM/Large Motor
ESP
bhp 0.17 0.22 0.26 0.29 0.31 0.34 0.37 0.40 0.44 0.47 0.5 0.53 0.56 0.60 0.63 0.65
Sheave/MotorBBBBAAAAAAAAACCC
rpm 516 573 625 670 710 755 785 820 850 880 900 925 945 970 990 1010
Turns Open 5.0 4.5 3.5 2.5 4.5 4.0 3.5 3.0 2.0 1.5 1.5 1.0 0.5 3.0 2.5 2.5
bhp 0.20 0.24 0.28 0.32 0.35 0.38 0.41 0.45 0.48 0.52 0.55 0.58 0.62 0.65 0.68 0.70
Sheave/MotorBBBAAAAAAAAACCCC
rpm 526 583 635 680 725 765 795 830 860 890 915 940 965 990 1010 1030
Turns Open 5.0 4.5 3.5 5.0 4.5 3.5 3.0 2.5 2.0 1.5 1.0 0.5 3.0 2.5 2.5 2.0
bhp 0.23 0.26 0.30 0.34 0.38 0.42 0.45 0.49 0.53 0.56 0.60 0.64 0.67 0.71 0.73 0.75
Sheave/MotorBBBAAAAAAAAACCCC
rpm 536 589 640 685 730 770 805 840 875 900 930 955 980 1005 1025 1045
Turns Open 4.5 4.0 3.0 5.0 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 3.0 2.5 2.0 2.0
bhp 0.25 0.29 0.33 0.37 0.41 0.46 0.50 0.54 0.58 0.62 0.65 0.68 0.72 0.76 0.78 0.81
Sheave/MotorBBBAAAAAAAACCCCC
rpm 547 599 650 695 740 780 815 855 885 915 940 965 995 1020 1040 1060
Turns Open 4.5 4.0 3.0 4.5 4.0 3.5 2.5 2.0 1.5 1.0 0.5 3.0 2.5 2.0 2.0 1.5
bhp 0.29 0.32 0.37 0.41 0.46 0.50 0.55 0.59 0.62 0.66 0.70 0.73 0.77 0.81 0.85 0.88
Sheave/MotorBBBAAAAAAAACCCCC
rpm 568 620 665 710 755 790 830 865 895 925 955 985 1015 1035 1060 1080
Turns Open 4.5 3.5 3.0 4.5 3.5 3.0 2.5 2.0 1.5 1.0 0.5 2.5 2.0 2.0 1.5 1.0
bhp 0.33 0.36 0.42 0.47 0.52 0.57 0.61 0.66 0.69 0.73 0.77 0.81 0.85 0.89 0.92 0.96
Sheave/MotorBBAAAAAAAACCCCCC
rpm 589 635 680 725 765 805 845 880 910 940 975 1005 1030 1055 1075 1100
Turns Open 4.0 3.5 5.0 4.0 3.5 3.0 2.0 1.5 1.0 0.5 3.0 2.5 2.0 1.5 1.5 1.0
bhp 0.41 0.45 0.49 0.52 0.57 0.63 0.68 0.72 0.76 0.80 0.84 0.88 0.92 0.96 1.00 1.04
Sheave/MotorBBAAAAAAAACCCCEE
rpm 615 660 700 740 780 820 860 895 925 960 990 1020 1045 1070 1095 1120
Turns Open 3.5 3.0 4.5 4.0 3.0 2.5 2.0 1.5 1.0 0.5 2.5 2.0 2.0 1.5 1.0 0.5
bhp 0.44 0.49 0.54 0.58 0.64 0.69 0.74 0.78 0.83 0.87 0.91 0.96 1.00 1.04 1.08 1.12
Sheave/MotorBAAAAAAAACCCEEEE
rpm 640 680 720 760 800 840 880 910 945 975 1005 1035 1060 1085 1115 1135
Turns Open 3.0 5.0 4.5 3.5 3.0 2.5 1.5 1.0 0.5 3.0 2.5 2.0 1.5 1.5 1.0 0.5
bhp 0.52 0.56 0.60 0.65 0.70 0.75 0.80 0.85 0.89 0.94 1.00 1.05 1.11 1.16 1.22 1.25
Sheave/MotorBAAAAAAACCEEEEEE
rpm 665 705 745 785 825 860 895 930 960 995 1025 1050 1080 1105 1135 1155
Turns Open 3.0 4.5 4.0 3.5 2.5 2.0 1.5 0.5 3.0 2.5 2.0 2.0 1.5 1.0 0.5 0.5
bhp 0.57 0.62 0.67 0.73 0.79 0.84 0.89 1.00 1.00 1.03 1.08 1.14 1.20 1.26 1.30 1.35
Sheave/MotorAAAAAAADDEEEEEEE
rpm 695 735 775 810 850 885 920 950 980 1015 1040 1070 1100 1130 1150 1175
Turns Open 5.0 4.0 3.5 3.0 2.0 1.5 1.0 0.5 0.0 2.0 2.0 1.5 1.0 0.5 0.5 0.0
bhp 0.64 0.69 0.75 0.81 0.87 0.92 1.00 1.01 1.05 1.11 1.17 1.23 1.29 1.34 1.39 1.43
Sheave/MotorAAAAAADDEEEEEEEE
rpm 725 765 800 835 870 905 940 970 1000 1030 1060 1090 1120 1145 1170 1190
Turns Open 4.5 3.5 3.0 2.5 2.0 1.5 0.5 0.0 2.5 2.0 1.5 1.0 0.5 0.5 0.0 0.0
LEGEND
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)
2. Unit shipped with standard drive package with drive sheave 2.5
turns open unless otherwise requested. Field adjustment may
be required for specified CFM.
3. ISO/AHRI rating point with standard drive package and drive
sheave open 3.0 turns at .30 ESP.
4. Performance data does not include drive losses and is based
on sea level conditions.
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,
rated at 208 volts for 208-230 volt units.
13
Table 7 — 50RTP06 Blower Performance Data
AIRFLOW
(cfm)
1800
1900
2000
2100
2200
2300
2400
2500
2600
2700
2800
2900
3000
ESP
bhp 0.270.310.350.390.430.470.510.550.590.620.660.700.740.760.790.83
Sheave/MotorBBBBAAAAAAAAACCC
rpm 568 620 665 710 755 790 830 865 895 920 950 975 1005 1025 1045 1070
Turns Open 5.0 3.5 2.5 1.5 5.0 4.0 3.5 3.0 2.5 2.0 1.0 0.5 0.0 4.0 4.0 3.5
bhp 0.290.330.370.420.460.500.550.590.630.670.700.740.770.810.850.89
Sheave/MotorBBBBAAAAAAAACCCC
rpm 573 625 670 715 755 795 830 870 900 930 960 990 1015 1040 1060 1085
Turns Open 4.5 3.5 2.5 1.5 5.0 4.0 3.5 3.0 2.0 1.5 1.0 0.5 4.5 4.0 3.5 3.5
bhp 0.320.360.410.460.510.560.600.650.690.720.760.800.840.880.920.96
Sheave/MotorBBBBAAAAAAAACCCC
rpm 583 630 675 720 760 800 835 875 905 935 970 1000 1025 1050 1075 1100
Turns Open 4.5 3.0 2.0 1.0 4.5 3.5 3.0 2.5 2.0 1.5 0.5 0.0 4.0 3.5 3.5 3.0
bhp 0.390.440.470.510.560.610.660.710.750.790.830.870.910.950.991.03
Sheave/MotorBBBBAAAAAAACCCCC
rpm 599 645 685 725 770 805 845 885 915 950 980 1010 1035 1060 1085 1110
Turns Open 4.0 3.0 2.0 1.0 4.5 3.5 3.0 2.5 1.5 1.0 0.5 4.5 4.0 3.5 3.0 3.0
bhp 0.420.470.520.560.620.670.720.770.810.850.890.930.981.021.061.11
Sheave/MotorBBBAAAAAAAACCCCC
rpm 620 665 705 745 785 825 865 900 930 960 995 1020 1050 1075 1100 1130
Turns Open 3.5 2.5 1.5 5.0 4.0 3.5 2.5 2.0 1.5 1.0 0.0 4.0 3.5 3.5 3.0 2.5
bhp 0.490.540.580.620.670.720.780.820.870.910.971.021.081.131.191.23
Sheave/MotorBBBAAAAAAACCCCCC
rpm 640 685 725 765 800 840 880 910 945 975 1010 1035 1065 1090 1120 1145
Turns Open 3.0 2.0 1.0 4.5 4.0 3.0 2.5 2.0 1.0 0.5 4.5 4.0 3.5 3.0 2.5 2.5
bhp 0.540.580.620.680.740.790.850.900.940.991.041.101.151.211.271.31
Sheave/MotorBBAAAAAAAACCCCCC
rpm 660 700 740 780 820 855 890 925 955 990 1020 1050 1075 1105 1135 1155
Turns Open 2.5 1.5 5.0 4.5 3.5 3.0 2.0 1.5 1.0 0.5 4.0 3.5 3.5 3.0 2.5 2.0
bhp 0.590.640.690.750.810.870.920.961.011.051.111.171.231.291.341.39
Sheave/MotorBBAAAAAAAACCCCCC
rpm 680 725 765 800 835 870 905 935 970 1000 1030 1060 1090 1120 1145 1170
Turns Open 2.0 1.0 4.5 4.0 3.5 3.0 2.0 1.5 0.5 0.0 4.0 3.5 3.0 C 2.0 2.0
bhp 0.640.690.750.800.860.920.971.021.081.131.191.251.301.361.411.50
Sheave/MotorBAAAAAAAACCCCCCE
rpm 700 740 780 815 850 885 920 950 985 1015 1045 1075 1100 1130 1155 1180
Turns Open 1.5 5.0 4.5 3.5 3.0 2.5 2.0 1.0 0.5 4.5 3.5 3.0 3.0 2.5 2.0 1.5
bhp 0.700.750.800.860.910.971.021.081.141.201.261.321.381.501.521.56
Sheave/MotorBAAAAAAACCCCCEE E
rpm 725 760 795 830 865 900 930 960 995 1025 1055 1085 1115 1140 1165 1190
Turns Open 1.0 4.5 4.0 3.5 3.0 2.0 1.5 1.0 4.5 4.0 3.5 3.0 2.5 2.0 2.0 1.5
bhp 0.760.820.880.930.981.051.101.161.221.301.371.441.501.561.631.69
Sheave/MotorAAAAAAAACCCCEE EE
rpm 745 780 815 850 880 915 945 980 1010 1040 1070 1100 1125 1150 1180 1205
Turns Open 5.0 4.0 3.5 3.0 2.5 1.5 1.0 0.5 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.5
bhp 0.820.880.930.981.051.111.171.231.301.371.441.511.591.651.711.77
Sheave/MotorAAAAAAACCCCEEEEE
rpm 765 800 830 865 900 930 960 990 1020 1050 1080 1110 1140 1165 1190 1215
Turns Open 4.5 4.0 3.5 2.5 2.0 1.5 0.5 4.5 4.0 3.5 3.0 2.5 2.5 2.0 1.5 1.0
bhp 0.910.961.021.071.131.201.261.321.381.461.531.601.661.721.781.84
Sheave/MotorAAAAAAACCCEEEEEE
rpm 785 820 855 885 915 950 980 1010 1035 1065 1095 1125 1150 1175 1200 1225
Turns Open 4.0 3.5 3.0 2.5 2.0 1.0 0.5 4.0 4.0 3.5 3.0 2.5 2.0 1.5 1.5 1.0
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5
LEGEND
bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard
Motor, C = High RPM/Standard Motor, E = High RPM/Large
Motor
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)
2. Unit shipped with standard drive package with drive sheave 2.5
turns open unless otherwise requested. Field adjustment may
be required for specified CFM.
3. ISO/AHRI rating point with standard drive package and drive
sheave open 3.0 turns at .30 ESP.
4. Performance data does not include drive losses and is based
on sea level conditions.
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,
rated at 208 volts for 208-230 volt units.
14
Table 8 — 50RTP08 Blower Performance Data
AIRFLOW
(cfm)
2400
2500
2600
2700
2800
2900
3000
3100
3200
3300
3400
3500
3600
3700
ESP
bhp 0.36 0.39 0.42 0.46 0.52 0.6 0.67 0.7 0.74 0.77 0.82 0.88 0.95 1.01 1.07 1.13 1.18 1.22 1.27 1.32 1.37
Sheave/MotorBBBBAAAAAAAAACCCCCCCC
rpm 500 525 563 596 632 668 704 728 756 780 808 832 856 880 904 928 948 968 988 1008 1028
Turns Open 6.0 5.0 4.0 3.0 6.0 5.0 4.5 4.0 3.5 2.5 2.0 1.5 1.0 6.0 5.5 5.0 4.5 4.5 4.0 4.0 3.5
bhp 0.40 0.45 0.50 0.56 0.62 0.67 0.72 0.76 0.80 0.85 0.90 0.97 1.05 1.12 1.18 1.22 1.26 1.31 1.36 1.40 1.46
Sheave/MotorBBBBAAAAAAAAACCCCCCCC
rpm 504 538 575 612 648 680 712 740 764 792 816 840 868 892 916 936 956 976 1000 1016 1036
Turns Open 5.5 4.5 3.5 3.0 5.5 5.0 4.5 3.5 3.0 2.5 2.0 1.5 1.0 5.5 5.0 5.0 4.5 4.0 4.0 3.5 3.5
bhp 0.47 0.51 0.55 0.60 0.67 0.73 0.78 0.84 0.89 0.94 1.00 1.05 1.11 1.16 1.23 1.28 1.35 1.41 1.46 1.51 1.56
Sheave/MotorBBBAAAAAAAAACCCCCCCCC
rpm 521 554 592 624 660 692 720 748 776 800 828 852 876 900 924 944 968 988 1008 1028 1048
Turns Open 5.5 4.5 3.5 6.0 5.5 4.5 4.0 3.5 2.5 2.0 1.5 1.0 6.0 5.5 5.0 4.5 4.0 4.0 3.5 3.5 3.0
bhp 0.51 0.56 0.61 0.66 0.72 0.77 0.82 0.88 0.94 0.99 1.06 1.14 1.21 1.27 1.32 1.39 1.44 1.50 1.55 1.59 1.65
Sheave/MotorBBBAAAAAAAAACCCCCCCCC
rpm 538 571 608 640 672 704 732 760 788 812 836 864 888 912 932 956 976 1000 1020 1036 1056
Turns Open 5.0 4.0 3.0 5.5 5.0 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.5 5.0 4.5 4.5 4.0 3.5 3.5 3.0 3.0
bhp 0.57 0.62 0.67 0.72 0.77 0.83 0.90 0.96 1.03 1.08 1.15 1.20 1.25 1.33 1.40 1.48 1.56 1.62 1.67 1.71 1.75
Sheave/MotorBBBAAAAAAAACCCCCCCCCC
rpm 550 583 616 648 684 712 740 768 796 820 848 872 896 920 940 964 988 1008 1028 1044 1064
Turns Open 4.5 3.5 2.5 5.5 5.0 4.0 3.5 3.0 2.5 2.0 1.5 6.0 5.5 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5
bhp 0.62 0.66 0.72 0.78 0.83 0.89 0.95 1.02 1.08 1.15 1.22 1.30 1.37 1.44 1.51 1.58 1.66 1.70 1.75 1.79 1.84
Sheave/MotorBBAAAAAAAAACCCCCCCCCC
rpm 567 600 632 664 696 724 752 780 808 832 856 884 908 932 952 976 1000 1016 1036 1056 1076
Turns Open 4.0 3.0 5.5 5.0 4.5 3.5 3.0 2.5 2.0 1.5 1.0 5.5 5.0 4.5 4.5 4.0 3.5 3.5 3.0 3.0 2.5
bhp 0.68 0.73 0.78 0.83 0.89 0.97 1.05 1.13 1.18 1.24 1.30 1.35 1.42 1.51 1.60 1.68 1.76 1.80 1.85 1.88 1.92
Sheave/MotorBBAAAAAAAACCCCCCCCCCC
rpm 583 616 648 680 712 740 768 796 820 844 872 896 916 940 964 984 1008 1028 1048 1064 1084
Turns Open 3.5 2.5 5.5 5.0 4.0 3.5 3.0 2.5 1.5 1.5 6.0 5.5 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.5
bhp 0.75 0.81 0.88 0.93 1.00 1.05 1.12 1.18 1.25 1.32 1.38 1.45 1.53 1.61 1.67 1.75 1.80 1.86 1.92 2.00 2.03
Sheave/MotorBAAAAAAAAACCCCCCCCCE E
rpm 604 636 668 696 728 752 780 808 832 856 880 904 928 952 972 996 1016 1036 1056 1076 1096
Turns Open 3.0 6.0 5.0 4.5 4.0 3.0 2.5 2.0 1.5 1.0 5.5 5.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0
bhp 0.80 0.86 0.93 0.99 1.07 1.15 1.23 1.28 1.34 1.39 1.44 1.52 1.61 1.69 1.78 1.86 1.91 1.96 2.01 2.06 2.12
Sheave/MotorBAAAAAAAACCCCCCCCCE EE
rpm 620 652 684 712 740 768 796 820 844 868 892 916 940 960 984 1008 1028 1048 1064 1084 1104
Turns Open 2.5 5.5 5.0 4.0 3.5 3.0 2.5 2.0 1.0 6.0 5.5 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.5 2.0
bhp 0.89 0.96 1.03 1.09 1.15 1.22 1.27 1.35 1.42 1.48 1.55 1.63 1.71 1.80 1.87 1.95 2.01 2.07 2.13 2.19 2.25
Sheave/MotorAAAAAAAAACCCCCCCE EEEE
rpm 636 668 696 724 752 780 804 832 856 880 904 924 948 972 992 1016 1036 1056 1076 1096 1112
Turns Open 6.0 5.0 4.5 4.0 3.5 2.5 2.0 1.5 1.0 5.5 5.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 2.0
bhp 0.95 1.02 1.09 1.17 1.24 1.32 1.38 1.43 1.48 1.53 1.61 1.70 1.80 1.88 2.00 2.04 2.11 2.18 2.25 2.32 2.38
Sheave/MotorAAAAA AAACCCCCCEE EEE EE
rpm 652 684 712 740 764 792 816 840 864 888 912 936 960 980 1004 1024 1044 1064 1084 1104 1120
Turns Open 5.5 4.5 4.0 3.5 3.0 2.5 2.0 1.5 6.0 5.5 5.0 4.5 4.5 4.0 3.5 3.0 3.0 2.5 2.5 2.0 1.5
bhp 1.05 1.13 1.19 1.25 1.31 1.37 1.44 1.51 1.57 1.64 1.74 1.82 1.91 2.01 2.08 2.14 2.21 2.27 2.33 2.41 2.48
Sheave/MotorAAAAA AAACCCCCEE EEE EEE
rpm 668 696 724 752 776 804 828 852 876 900 924 944 968 992 1012 1032 1052 1072 1092 1112 1128
Turns Open 5.0 4.5 4.0 3.5 3.0 2.0 1.5 1.0 5.5 5.0 5.0 4.5 4.0 3.5 3.5 3.0 3.0 2.5 2.0 2.0 1.5
bhp 1.12 1.18 1.26 1.34 1.41 1.48 1.54 1.61 1.67 1.73 1.82 1.90 1.97 2.06 2.14 2.21 2.29 2.36 2.44 2.53 2.61
Sheave/MotorAAAAA AACCCCCCEEE EEE EE
rpm 680 708 736 764 788 816 840 864 888 908 932 956 976 1000 1020 1040 1060 1080 1100 1120 1136
Turns Open 5.0 4.0 3.5 3.0 2.5 2.0 1.5 6.0 5.5 5.0 4.5 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 1.5 1.5
bhp 1.23 1.29 1.35 1.41 1.47 1.56 1.64 1.70 1.79 1.87 2.00 2.02 2.10 2.17 2.24 2.31 2.38 2.46 2.54 2.64 2.72
Sheave/MotorAAAAAAACCCEEEEEEEEEEE
rpm 696 724 752 776 804 828 852 872 896 920 944 964 988 1008 1028 1048 1068 1088 1108 1128 1144
Turns Open 4.5 4.0 3.5 3.0 2.0 1.5 1.0 5.5 5.0 5.0 4.5 4.5 4.0 3.5 3.0 3.0 2.5 2.5 2.0 1.5 1.5
0.00.10.20.30.40.50.60.70.80.91.01.11.21.31.41.51.61.71.81.92.0
LEGEND
bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard
Motor, C = High RPM/Standard Motor, E = High RPM/Large
Motor
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)
2. Unit shipped with standard drive package with drive sheave 2.5
turns open unless otherwise requested. Field adjustment may
be required for specified CFM.
3. ISO/AHRI rating point with standard drive package and drive
sheave open 3.0 turns at .30 ESP.
4. Performance data does not include drive losses and is based
on sea level conditions.
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,
rated at 208 volts for 208-230 volt units.
15
Table 8 — 50RTP08 Blower Performance Data (cont)
AIRFLOW
(cfm)
3800
3900
4000
ESP
bhp 1.29 1.37 1.44 1.52 1.59 1.67 1.74 1.82 1.89 2.00 2.04 2.12 2.20 2.28 2.36 2.44 2.52 2.60 2.67 2.77 2.84
Sheave/MotorAAAAAACCCEEEEEEEEEEEE
rpm 712 740 764 792 816 840 864 888 908 932 952 976 1000 1020 1040 1060 1080 1100 1116 1136 1152
Turns Open 4.0 3.5 3.0 2.5 2.0 1.5 6.0 5.5 5.0 4.5 4.5 4.0 3.5 3.0 3.0 2.5 2.5 2.0 2.0 1.5 1.0
bhp 1.41 1.48 1.54 1.61 1.70 1.78 1.84 1.93 2.01 2.08 2.17 2.26 2.33 2.41 2.49 2.57 2.65 2.74 2.81 2.89 —
Sheave/MotorAAAAAACCEEEEEEEEEEEE—
rpm 728 752 776 804 828 852 872 896 920 940 964 988 1008 1028 1048 1068 1088 1108 1124 1144 —
Turns Open 4.0 3.0 2.5 2.0 1.5 1.0 5.5 5.5 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0 2.0 1.5 1.0 —
bhp 1.48 1.56 1.64 1.71 1.80 1.88 2.00 2.03 2.12 2.19 2.27 2.35 2.43 2.52 2.61 2.69 2.78 2.86 2.93 — —
Sheave/MotorAAAAACEEEEEEEEEDEEE——
rpm 740 768 792 816 840 864 888 908 932 952 976 996 1016 1036 1056 1076 1096 1116 1132 — —
Turns Open 3.5 3.0 2.5 2.0 1.5 6.0 5.5 5.0 4.5 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 2.0 1.5 — —
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0
LEGEND
bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard
Motor, C = High RPM/Standard Motor, E = High RPM/Large
Motor
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)
2. Unit shipped with standard drive package with drive sheave 2.5
turns open unless otherwise requested. Field adjustment may
be required for specified CFM.
3. ISO/AHRI rating point with standard drive package and drive
sheave open 3.0 turns at .30 ESP.
4. Performance data does not include drive losses and is based
on sea level conditions.
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,
rated at 208 volts for 208-230 volt units.
16
Table 9 — 50RTP10 Blower Performance Data
AIRFLOW
(cfm)
3000
3100
3200
3300
3400
3500
3600
3700
3800
3900
4000
4100
4200
ESP
bhp 0.66 0.71 0.76 0.81 0.86 0.94 1.02 1.1 1.17 1.22 1.27 1.32 1.39 1.48 1.56 1.65 1.74 1.78 1.83 1.86 1.91
Sheave/MotorBBBBBAAAAAAAAAACCCCCC
rpm 571 604 636 668 700 728 756 784 812 836 860 884 908 932 952 976 1000 1020 1040 1056 1076
Turns Open 5.5 5.0 4.0 3.0 2.0 6.0 5.5 5.0 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.0 4.0 3.5 3.0 3.0
bhp 0.73 0.79 0.85 0.91 0.98 1.04 1.10 1.16 1.23 1.29 1.36 1.43 1.50 1.58 1.64 1.72 1.78 1.84 1.89 1.95 2.01
Sheave/MotorBBBBAAAAAAAAAACCCCCCC
rpm 592 624 656 684 716 744 772 800 824 848 872 896 920 944 964 988 1008 1028 1048 1068 1088
Turns Open 5.0 4.5 3.5 2.5 6.0 5.5 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5
bhp 0.78 0.84 0.90 0.97 1.04 1.12 1.20 1.27 1.32 1.37 1.42 1.49 1.58 1.66 1.75 1.84 1.89 1.94 2.00 2.05 2.10
Sheave/MotorBBBBAAAAAAAAAACCCCCCC
rpm 608 640 672 704 728 756 784 812 836 860 884 908 932 952 976 1000 1020 1040 1060 1080 1100
Turns Open 4.5 4.0 3.0 2.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5
bhp 0.87 0.93 1.01 1.08 1.14 1.20 1.26 1.33 1.39 1.46 1.53 1.61 1.68 1.77 1.86 1.92 1.98 2.04 2.10 2.16 2.23
Sheave/MotorBBBBAAAAAAAAACCCCCCCC
rpm 628 656 688 716 744 772 800 824 848 872 896 920 940 964 988 1008 1028 1048 1068 1088 1108
Turns Open 4.0 3.5 2.5 1.5 5.5 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.5
bhp 0.94 1.01 1.07 1.15 1.23 1.30 1.37 1.42 1.47 1.52 1.59 1.69 1.77 1.86 1.96 2.03 2.10 2.16 2.23 2.30 2.36
Sheave/MotorBBBAAAAAAAAAACCCCCCCC
rpm 644 676 704 732 760 784 812 836 860 884 908 932 952 976 1000 1020 1040 1060 1080 1100 1116
Turns Open 3.5 3.0 2.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0
bhp 1.03 1.12 1.18 1.24 1.30 1.36 1.43 1.49 1.56 1.63 1.72 1.80 1.90 1.99 2.07 2.13 2.19 2.26 2.32 2.40 2.47
Sheave/MotorBBAAAAAAAAAACCCCCCCCC
rpm 660 692 720 744 772 800 824 848 872 896 920 940 964 988 1008 1028 1048 1068 1088 1108 1124
Turns Open 3.5 2.5 6.0 5.5 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0
bhp 1.11 1.17 1.25 1.33 1.40 1.47 1.53 1.60 1.66 1.73 1.80 1.89 1.97 2.05 2.12 2.20 2.27 2.35 2.42 2.51 2.59
Sheave/MotorBBAAAAAAAAAACCCCCCCCC
rpm 676 704 732 760 784 812 836 860 884 908 928 952 976 996 1016 1036 1056 1076 1096 1116 1132
Turns Open 3.0 2.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0 2.0
bhp 1.22 1.28 1.35 1.40 1.46 1.54 1.62 1.70 1.77 1.85 1.94 2.00 2.09 2.17 2.24 2.31 2.38 2.46 2.52 2.62 2.72
Sheave/MotorBAAAAAAAAAACCCCCCCCCC
rpm 692 720 748 772 800 824 848 872 892 916 940 960 984 1008 1028 1048 1068 1088 1104 1124 1144
Turns Open 2.5 6.0 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 1.5
bhp 1.28 1.35 1.43 1.51 1.58 1.66 1.73 1.81 1.87 1.96 2.04 2.10 2.19 2.26 2.34 2.42 2.50 2.58 2.66 2.75 2.84
Sheave/MotorBAAAAAAAAAACCCCCCCCCC
rpm 708 732 760 788 812 836 860 884 904 928 952 972 996 1016 1036 1056 1076 1096 1112 1132 1152
Turns Open 2.0 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0 2.0 1.5
bhp 1.39 1.46 1.53 1.60 1.68 1.76 1.83 1.91 2.00 2.08 2.16 2.24 2.32 2.40 2.48 2.56 2.64 2.72 2.81 2.88 3.00
Sheave/MotorAAAAAAAAAACCCCCCCCCCE
rpm 720 748 772 800 824 848 868 892 916 940 960 984 1004 1024 1044 1064 1084 1104 1124 1140 1160
Turns Open 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 2.0 1.5
bhp 1.47 1.54 1.62 1.70 1.78 1.86 1.95 2.01 2.10 2.17 2.26 2.33 2.41 2.50 2.59 2.68 2.76 2.85 2.93 3.00 3.07
Sheave/MotorAAAAAAAAAACCCCCCCCCE E
rpm 736 760 788 812 836 860 884 904 928 948 972 992 1012 1032 1052 1072 1092 1112 1132 1148 1168
Turns Open 5.5 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.5 4.0 3.5 3.5 3.0 2.5 2.0 2.0 1.5 1.5
bhp 1.56 1.66 1.74 1.82 1.89 1.97 2.03 2.12 2.20 2.29 2.36 2.46 2.53 2.62 2.72 2.81 2.90 3.00 3.06 3.12 3.20
Sheave/MotorAAAAAAAAACCCCCCCCE EEE
rpm 748 776 800 824 848 872 892 916 936 960 980 1004 1020 1040 1060 1080 1100 1120 1140 1156 1176
Turns Open 5.0 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0 2.0 1.5 1.0
bhp 1.64 1.72 1.81 1.90 1.97 2.06 2.15 2.23 2.31 2.38 2.46 2.56 2.66 2.76 2.86 3.00 3.03 3.11 3.18 3.26 3.34
Sheave/MotorAAAAAAAAACCCCCCE EEEEE
rpm 764 788 812 836 856 880 904 924 948 968 988 1012 1032 1052 1072 1088 1108 1128 1144 1164 1184
Turns Open 0.66 0.71 0.76 0.81 0.86 0.94 1.02 1.1 1.17 1.22 1.27 1.32 1.39 1.48 1.56 1.65 1.74 1.78 1.83 1.86 1.91
0.00.10.20.30.40.50.60.70.80.91.01.11.21.31.41.51.61.71.81.92.0
LEGEND
bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard
Motor, C = High RPM/Standard Motor, E = High RPM/Large
Motor
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)
2. Unit shipped with standard drive package with drive sheave 2.5
turns open unless otherwise requested. Field adjustment may
be required for specified CFM.
3. ISO/AHRI rating point with standard drive package and drive
sheave open 3.0 turns at .30 ESP.
4. Performance data does not include drive losses and is based
on sea level conditions.
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,
rated at 208 volts for 208-230 volt units.
17
Table 9 — 50RTP10 Blower Performance Data (cont)
AIRFLOW
(cfm)
4300
4400
4500
4600
4700
4800
4900
5000
ESP
bhp 1.76 1.84 1.93 2.00 2.08 2.17 2.25 2.34 2.42 2.50 2.60 2.70 2.80 2.90 3.00 3.10 3.16 3.24 3.31 3.39 3.45
Sheave/MotorAAAAA AAACCCCCCEEEEEEE
rpm 776 800 824 844 868 892 912 936 956 976 1000 1020 1040 1060 1080 1100 1116 1136 1152 1172 1188
Turns Open 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0 2.0 1.5 1.0 1.0
bhp 1.86 1.95 2.04 2.12 2.22 2.32 2.4 2.48 2.57 2.65 2.74 2.84 3.00 3.04 3.14 3.23 3.30 3.38 3.44 3.52 3.58
Sheave/MotorAAAAAAAACCCCEEEEEEEEE
rpm 788 812 836 856 880 904 924 944 968 988 1008 1028 1048 1068 1088 1108 1124 1144 1160 1180 1196
Turns Open 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 4.5 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 1.5 1.5 1.0 1.0
bhp 1.96 2.06 2.15 2.23 2.33 2.43 2.52 2.61 2.69 2.78 2.88 3.00 3.08 3.18 3.28 3.35 3.44 3.53 3.61 3.70 —
Sheave/MotorAAAAAAACCCCEEEEEEEEE—
rpm 800 824 848 868 892 916 936 956 976 996 1016 1036 1056 1076 1096 1112 1132 1152 1168 1188 —
Turns Open 4.0 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0 2.0 1.5 1.5 1.0 —
bhp 2.12 2.20 2.30 2.38 2.47 2.56 2.64 2.73 2.83 2.92 3.00 3.10 3.20 3.30 3.40 3.49 3.60 3.68 3.79 3.88 —
Sheave/MotorAAAAAAACCCEEEEEEEEEE—
rpm 820 840 864 884 908 928 948 968 992 1012 1028 1048 1068 1088 1108 1124 1144 1160 1180 1196 —
Turns Open 3.5 3.0 3.0 2.5 2.0 1.5 1.0 4.5 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 1.5 1.5 1.0 1.0 —
bhp 2.23 2.31 2.40 2.50 2.59 2.68 2.76 2.85 3.00 3.04 3.14 3.24 3.34 3.42 3.53 3.62 3.73 3.84 3.93 — —
Sheave/MotorAAAAAACCEEEEEEEEEEE——
rpm 832 852 876 900 920 940 960 980 1000 1020 1040 1060 1080 1096 1116 1132 1152 1172 1188 — —
Turns Open 3.5 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 4.0 3.5 3.0 3.0 2.5 2.0 2.0 1.5 1.0 1.0 — —
bhp 2.35 2.46 2.55 2.65 2.73 2.81 2.89 3.00 3.06 3.16 3.26 3.34 3.44 3.55 3.64 3.76 3.86 3.98 4.08 — —
Sheave/MotorAAAAACCEEEEEEEEEEEE——
rpm 844 868 888 912 932 952 972 992 1012 1032 1052 1068 1088 1108 1124 1144 1160 1180 1196 — —
Turns Open 3.0 2.5 2.0 1.5 1.5 5.0 4.5 4.5 4.0 3.5 3.5 3.0 2.5 2.5 2.0 1.5 1.5 1.0 1.0 — —
bhp 2.49 2.58 2.68 2.77 2.85 3.00 3.03 3.12 3.22 3.30 3.40 3.50 3.60 3.70 3.82 3.91 4.03 4.13 — — —
Sheave/MotorAAAAAEEEEEEEEEEEEE———
rpm 860 880 904 924 944 964 984 1004 1024 1040 1060 1080 1100 1116 1136 1152 1172 1188 — — —
Turns Open 3.0 2.5 2.0 1.5 1.0 5.0 4.5 4.0 3.5 3.5 3.0 3.0 2.5 2.0 2.0 1.5 1.0 1.0 — — —
bhp 2.63 2.72 2.81 2.91 3.00 3.09 3.18 3.28 3.36 3.46 3.56 3.66 3.75 3.87 3.96 4.08 4.18 4.28 — — —
Sheave/MotorAAAAEEEEEEEEEEEEEE———
rpm 876 896 916 936 956 976 996 1016 1032 1052 1072 1092 1108 1128 1144 1164 1180 1196 — — —
Turns Open 2.5 2.0 1.5 1.0 5.0 4.5 4.0 4.0 3.5 3.5 3.0 2.5 2.5 2.0 1.5 1.5 1.0 1.0 — — —
0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0
LEGEND
bhp — Brake Horsepower
ESP — External Static Pressure
NOTES:
1. A = Standard RPM/Standard Motor, B = Low RPM/Standard
Motor, C = High RPM/Standard Motor, E = High RPM/Large
Motor
AIRFLOW (cfm) AT EXTERNAL STATIC PRESSURE (in. wg)
2. Unit shipped with standard drive package with drive sheave 2.5
turns open unless otherwise requested. Field adjustment may
be required for specified CFM.
3. ISO/AHRI rating point with standard drive package and drive
sheave open 3.0 turns at .30 ESP.
4. Performance data does not include drive losses and is based
on sea level conditions.
5. All airflow is rated at lowest voltage if unit is dual rated, i.e.,
rated at 208 volts for 208-230 volt units.
18
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