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USER’S & INSTALLATION
MANUAL
RC060RTRGA
RC070RTRGA
RC080RTRGA
RC100RTRGA
RC120RTRGA
RC150RTRGA
RC180RTRGA
RC200RTRGA
RC250RTRGA
System Air Conditioner
(Cooling Only)
C O N T E N T S P A G E
ACCESSORIES.........................................................1
GENNERAL INFORMATION..........................................1
DIMENSIONAL DATA.................................................2
LOCATIONS AND RECOMMENDATIONS........................7
1. ACCESSORIES
Tab.1-1
Name of accessories Qty
Manual
Drain outlet
Snap ring
Drain pipe
KJR-12B Wire controller
1
1
1
1
1
Shape
2. GENERAL INFORMATION
Warnings and Cautions appear at appropriate locations throughout this manual.
Read these carefully.
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
It may also be used to alert against unsafe practices and where property-damage-only accidents could occur.
CAUTION
Read this entire manual before beginning installation procedures.
Bodily injury can result from high voltage electrical components, fast moving fans. For protection from these inherent hazards during installation and servicing, the electrical supply must be disconnected.
If operating checks must be performed with the unit operating, it is the technicians responsibility to recognize these hazards and proceed safely.
WARNING
Ask your dealer for installation of the air conditioner.
Incomplete installation performed by yourself may result in a water leakage, electric shock, and fire.
Ask your dealer for improvement, repair, and maintenance.
Incomplete improvement, repair, and maintenance may result in a water leakage, electric shock, and fire.
In order to avoid electric shock, fire or injury, or if you detect any abnormality such as smell of fire, turn off the power supply and call your dealer for instructions.
Never replace a fuse with that of wrong rated current or other wires when a fuse blows out.
Use of wire or copper wire may cause the unit to break down or cause a fire.
Do not insert fingers, rods or other objects into the air inlet or outlet.
When the fan is rotating at high speed, it will cause injury.
Never use a flammable spray such as hair spray,
lacqueror paint near the unit.
It may cause a fire.
Never inspect or service the unit by yourself.
Ask a qualified service person to perform this work.
Do not dispose this product as unsorted municipal waste.Collection of such waste separately for special treatment is necessary.
Keep far away from high-frequency equipment.
Keep away from the following places:
A place where it is full of oil gas; places where salty air surrounding(near the coast); a place where is caustic gas(the sulfide in hotspring). Location in the folling places may cause malfunction or shorten the life span of the manchine.
I n the cace of extremely strong wind, please prevent the air from flowing backwards into the outdoor unit.
Snow canopy is necessary in sonwfall places on the outdoor unit. Please consult the local dealer for details.
I n the frequent thunderstruck place, lightning proof actions should be taken.
To prevent refrigerant leak, contact your dealer.
When the system is installed and runs in a small room, it is required to keep the concentration of the refrigerant, if by any chance coming out, below the limit. Otherwise, oxygen in the room may be affected, resulting in a serious accident.
The refrigerant in the air conditioner is safe and normally does not leak.
If the refrigerant leaks in the room, contact with a fire of a burner, a heater or a cooker may result in a harmful gas.
Turn off any combustible heating devices, ventilate the room, and contact the dealer where you purchased the unit.
Do not use the air conditioner until a service person confirms that the portion where the refrigerant leaks is repaired.
I&O manual
1
3. DIMENSIONAL DATA
380-415V / 3Ph / 50Hz
6 / 7 Tons C/O Units
1223 2068
17 Condenser fan
900
Filter access door
Drain connection hole maintain orifice for air supply motor
587
2089 904 893
317
1235
Hole for control wires
Hole for power wires
Hole for other purpose
Control and comperssor access panel
Units: mm
Fig.3-1
I&O manual
2
Horizontal supply opening
Downflow supply opening
Horizontal return opening
465
Downflow return opening
695
287
723
357 40 103
Fresh air
Hole for bottom installation
83 300 303 439
8-19X14
Fig.3-2
Return Supply
761
2089
904 217 100
Fig.3-3
380-415V / 3Ph / 50Hz
8 / 10 Tons C/O Units
Units: mm
1323 2149
17 Condenser fan
1002
Filter access door
Drain connection hole maintain orifice for air supply motor
594
2165 804 863
453
1335
Hole for control wires
Hole for power wires
Hole for other purpose
Control and comperssor access panel
Fig.3-4
Horizontal supply opening
Downflow supply opening
Horizontal return opening
485
Downflow return opening
628
290
83 368 344 410
822
406 60 103
Fresh air
Fig.3-5
Hole for bottom installation
8-19X14
Return
Supply
805
2165
804 350 103
Fig.3-6
I&O manual
3
380-415V / 3Ph / 50Hz
12 / 15 Tons C/O Units
1813
2214
17
135
Filter occess door
Drain connection hole
Maintain orifice for air supply motor
2229
800
Control and comperssor access panel 863
400
Hole for control wires
Hole for power wires
Hole for other purpose
115
126
1825
1245
131
Fig.3-7
Units: mm
294
531
Horizontal supply opening
Downfolw supply opening
577
313
Horizontal return opening
Downfolw ruturn opening
360
55
213
1055
143
644
804
Fresh air
81 306 374 494 Hole for bottom installation
14-15×25
Fig.3-8
2164
2229
30
115
Fig.3-9
I&O manual
4
380-415V / 3Ph / 50Hz
18 / 20 Tons C/O Units
Units: mm
2138
2748
17
135
Filter access door
Drain connection hole
Maintain orifice for air supply motor 2753 783
Control and comperssor access panel
Hole for control wires
Hole for power wires
Hole for other purpose
135
142
467
870 2157
142
1245
Fig.3-10
880
Horizontal supply opening
673
Downflow supply opening
Horizontal return opening
Downflow return opening
315
599
55
203
1031
143
644
703
294
Fresh air
104 550 390 530
Fig.3-11
1241
2693
2753
1259
117
30
Fig.3-12
I&O manual
5
380-415V / 3Ph / 50Hz
25 Tons C/O Units
Units: mm
2138
2748
17
Drain connection hole
135
Maintain orifice for air supply motor
Maintain orifice for air supply motor 2753 783
Control and comperssor access panel
Hole for control wires
Hole for power wires
Hole for othere purpose
135
14
2
467
870 2157
142
Fig.3-13
I&O manual
6
538
653
Horizontal supply opening
Horizontal return opening
265
523
55
203
1031
644 703
294
Fresh air
Hole for bottom installation
14-15×25
Fig.3-14
1241
2693
2753
1259
117
30
Fig.3-15
4. LOCATIONS AND RECOMMENDATIONS
4.1 Horizontal airflow application
When choose horizontal air supply mode, please remove horizontal air supply panel and horizontal air return panel firstly.
See Fig.5-2
These units are design certified for outdoor installations. These units may be installed directly on wood flooring or on Class A,
Class B, or Class C roof covering material.
Location of the unit must allow service clearance around it.
Clearance of the unit must be given careful consideration.
Check the handling facilities to ensure the safety of personnel and the unit(s).
Caution must be taken at all times to avoid Personal injuries and/or damage to equipment.
The unit must be mounted level for proper drainage of water through the holes in the base pan.
The unit must not be exposed to direct roof water runoff.
Flexible duct connectors must be of a flame retardant material.
All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes.
Holes through exterior walls must be sealed in accordance with local codes.
All fabricated outdoor ducts should be as short as possible.
Caution must be taken at all times to avoid personal injuries and/or damage to the equipment.
The unit must be mounted level for proper drainage of water through the holes in the base pan.
The unit must not be exposed to direct roof water runoff.
Flexible duct connectors must be of a flame retardant material.
All duct work outside of the structure must be insulated and weatherproofed in accordance with local codes.
Roof flashing must be installed to seal the roof curb cavity and must conform to local building codes.
All fabricated outdoor ducts should be as short as possible.
4.3 Clearances
The recommended clearances for single-unit installations are illustrated in Fig.4-1
These minimum requirements are not only an important consideration when determining unit placement, but they are also essential to ensure adequate serviceability, maximum capacity, and peak operating efficiency.
Any reduction of the unit clearances indicated in these illustrations may result in condenser coil starvation or the recirculation of warm condenser air. Actual clearances which appear to be inadequate should be reviewed with a local engineer.
See the unit's nameplate for the absolute minimum clearance between the unit and any combustible surface(s).
4.2 Downflow application-curb mounting
When choose vertical air supply mode, for model 6.2 to 10 ton, please remove vertical air supply panel and vertical air return panel firstly; and then unload air down flow panel, horizontal deflector and air down-return panel; lastly, remount horizontal air supply panel and horizontal air return panel. See Fig.5-3.
When choose vertical air supply mode, for model 12.5 to 20 ton, please unload air down flow panel air down-return panel.
See Fig.5-4.
The Roof Mounting Curb, or a field fabricated curb must be in place before the unit is hoisted to the roof top.
The Roof Mounting Curb (frame) must be installed on a flat, level section of the roof and provide a level mounting surface for the unit. In addition, be sure to provide sufficient height above the roof to prevent water from entering the unit.
Be sure the mounting curb spans structural members (trusses) of the roof, thereby providing sufficient support for the weight of the unit, the curb, the duct(s), and any factory or field installed accessories.
Be sure the hole in the structure for the ducts is large enough to accommodate the fabricated ducts and the insulation surrounding them.
These units are design certified for outdoor installation. These units may be installed directly on wood flooring or on Class
A,Class B, or Class C roof covering material.
Location of the unit must allow for service clearance around it.
Clearance of the unit must be given careful consideration.
Check the handling facilities to ensure the safety of personnel and the unit(s).
5.1 Lifting
≥ 1000
5. INSTALLATION
Units: mm
≥ 1000
Overhead air
Clearance≥ 3000
≥ 1000
Fig.4-1
Rigging cables should have adequate capability to resist 3 times weight of unit. Before lift, please check and ensure that hooks are holding tightly to unit and lifting angles are no less than 60°.
Cloth material or hard-paper should be padded in the contact place between unit and rigging cable. Rigging cable should be entwined a round at the hook for prevent danger by cable slip because of weight unbalance.
During lifting, anyone forbidden lingering under the lifting unit.
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7
Spreader bars
Typical rooftop application with frame
Fig.5-1
5.2 Rooftop-units
For roof top applications using a field fabricated frame and ducts, use the following procedure:
The frame must be located and secured by bolting or welding to the roof. Flashing is required.
The hole in the roof must be prepared in advance of installing the unit.
Secure the ducts to the roof.
Place the unit on the frame or roof curb.
Secure the unit to the frame or roof curb.
Insulate any ductwork outside of the structure with at least two
(2) inches of insulation and then weatherproof. There must be a weatherproof seal where the duct enters the structure.
Complete the installation according to the instructions in the following sections of this manual.
Typical rooftop application with frame
Horizontal air deflector
Down-side air supply orifice’s cover
Down-side air return
orifice’s cover
Fig.5-3
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8
Cover panel of horizontal air supply
Cover panel of horizontal air return
Fig.5-2
Fig.5-4
●
●
●
5.3 Ground level-horizontal units
●
For ground level installations, the unit should be positioned on a pad in the size of the unit or larger. The unit must be level on the pad. The pad must not come in contact with the structure.
Be sure the outdoor portion of the supply and return air ducts are as short as possible.
Proceed with the installation as follows:
Place the unit on the pad.
Attach the supply and return air ducts to the unit.
Insulate any ductwork outside of the structure with at least 2 inches of insulation and weatherproof. There must be a weatherproof seal where the duct enters the structure.
Complete the installation according to the instructions in the following sections of this manual.
Typical ground level application
I&O manual
Fig.5-6
5.5 Ductwork
Attaching horizontal ductwork to unit
All conditioned air ductwork should be insulated to minimize heating and cooling duct losses. Use a minimum of two (2) inches of insulation with a vapor barrier. The outside ductwork must be weatherproofed between the unit and the building.
When attaching ductwork to a horizontal unit, provide a flexible watertight connection to prevent noise transmission from the unit to the ducts. The flexible connection must be indoors and made out of heavy canvas.
NOTE
Do not draw the canvas taut between the solid ducts.
5.4 Condensate drain piping
Drain connection hole
Drain outlet
Snap ring
Drain pipe
Fig.5-5
Unit duct flance Unit exterior
●
●
Weather proof this seam
Field duct
Fig.5-7
Attaching downflow ductwork to roof curb
Supply and return air flanges are provided on the roof curb for easy duct installation. All ductwork must be run and attached to the curb before the unit is set into place.
Follow these guidelines for ductwork construction:
Connections to the unit should be made with three-inch canvas connectors to minimize noise and vibration transmission.
Elbows with turning vanes or splitters are recommended to minimize air noise and resistance.
The first elbow in the ductwork leaving the unit should be no closer than two feet from the unit, to minimize noise and resistance.
Unit
Air proof this seam
Field duct
Fig.5-8
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9
●
●
●
●
6. ELECTRICAL WIRING
6.1 Protections and safety control
Minutes delay for the compressor start-up
At the beginning of energizing or after the stop of the compressor, 3-minutes delay will be taken to start the compressor.
When switchover between cooling/heating mode, the compressor stops automatically.
Compressor discharge gas temperature switch protection
When compressor discharge gas temperature discharge gas temperature switch will be closed. At the same time, the corresponding compressor will be shut off. The
ON/OFF signal and high-pressure protection signal should be connected together.
Reverse phase protection relay
The reverse phase protection relay will make the compressor not start, when the power source is incorrectly connected.
The checking of phase’ order is just carried out at the first time of electrifying. If malfunction happens then the checking will be going on until the order of phase is right, and the E0 will be displayed on the board. If there is no problem in the first checking, then it will be omitted.
High pressure and low pressure protection
The ON/OFF of high pressure and low pressure will be installed separately around inlet pipe, and both are connected to Main Control Board. The ON/OFF of high pressure will be off when the pressure is higher than 425Psi. The ON/OFF of low pressure will be off when lower than 7Psi.
6.2 Electrical data
R407C 380-415V / 3Ph / 50Hz
Tab.6-1
Nominal ton
Model type
Type of flow
Unit main power
VOL
Hz
Applicable voltage
Max.
Min.
Compressor motor
STC
RNC
IPT
Evaporator fan motor
RNC
IPT
Condenser fan motor
RNC
IPT
IPT
6 Tons
C/O
Hor. & Dow.
380
- 415
50
418
342
39
12.6
7.0
2.8
1.8
2.0
0.7
Tab.6-2
Nominal ton
Model type
Type of flow
Unit main power
VOL
Hz
Applicable voltage
Max.
Min.
STC
Compressor motor RNC
IPT
Evaporator fan motor
RNC
IPT
Condenser fan motor
RNC
IPT
Electric heating IPT
7 Tons
C/O
Hor. & Dow.
380
- 415
50
418
342
55
15
8.0
3.0
1.9
2.2
0.8
I&O manual
10
Tab.6-3
Nominal ton
Model type
Type of flow
Unit main power
VOL
Hz
Applicable voltage
Max.
Min.
Compressor motor
STC
RNC
IPT
Evaporator fan motor
RNC
IPT
Condenser fan motor
Electric heating
RNC
IPT
IPT
8 Tons
C/O
Hor. & Dow.
380
- 415
50
418
342
55
16.5
8.9
5.3
2.8
2.2
0.8
Tab.6-4
Nominal ton
Model type
Type of flow
Unit main power
VOL
Hz
Applicable voltage
Max.
Min.
STC
Compressor motor RNC
IPT
Evaporator fan motor
RNC
IPT
Condenser fan motor
RNC
IPT
Electric heating IPT
10 Tons
C/O
Hor. & Dow.
380
- 415
50
418
342
60
18.4
10.5
5.3
2.8
2.2
0.8
Tab.6-5
Nominal ton
Model type
Type of flow
Unit main power
VOL
Hz
Applicable voltage
Max.
Min.
Compressor motor
STC
RNC
IPT
Evaporator fan motor
RNC
IPT
Condenser fan motor
Electric heating
RNC
IPT
IPT
12 Tons
C/O
Hor. & Dow.
380
- 415
50
418
342
128
27.4
13.5
8.5
5.5
3.4
1.5
Tab.6-6
Nominal ton
Model type
Type of flow
Unit main power
VOL
Hz
Applicable voltage
Max.
Min.
STC
Compressor motor RNC
IPT
Evaporator fan motor
RNC
IPT
Condenser fan motor
RNC
IPT
Electric heating IPT
15 Tons
C/O
Hor. & Dow.
380
- 415
50
418
342
110
32.1
15.3
8.5
5.5
5.2
1.7
Tab.6-7
Nominal ton
Model type
Type of flow
Unit main power
VOL
Hz
Applicable voltage
Max.
Min.
Compressor motor
STC
RNC
IPT
Evaporator fan motor
RNC
IPT
Condenser fan motor
RNC
IPT
IPT
128
38.4
18
8.5
5.5
5.2
18 Tons
C/O
Hor. & Dow.
380
- 415
50
418
342
1.7
Tab.6-8
Nominal ton
Model type
Type of flow
Unit main power
VOL
Hz
Applicable voltage
Max.
Min.
STC
Compressor motor RNC
IPT
Evaporator fan motor
RNC
IPT
Condenser fan motor
RNC
IPT
IPT
20 Tons
C/O
Hor. & Dow.
380
- 415
50
418
342
140
44.2
20.2
8.5
5.5
5.2
1.7
Tab.6-9
Nominal ton
Model type
Type of flow
Unit main power
VOL
Hz
Applicable voltage
Max.
Min.
STC
Compressor motor RNC
IPT
Evaporator fan motor
RNC
IPT
Condenser fan motor
RNC
IPT
IPT
25 Tons
C/O
Hor.
380
- 415
50
418
342
195
50.2
27.2
10
7.5
6.5
3.4
I&O manual
11
NOTE
These data are based on the following conditions.
Evaporator Air Input Temperature 85 F DB, 66 F WB.
Condenser Air Input Temperature 115 F DB.
The strating current is indicated for each compressor motor.
The maximum currents of the compressor can be estimated as follows.
Tab.6-10
One compressor unit Two compressors unit
Max. current RNC×Max. IPT*/IPT RNC×Max. IPT*/IPT
Max. instantaneous current
STC
STC+RNC×0.5
×Max. IPT*/IPT
Max. IPT*: Compressor power input from the performance table at the expected maximum condition
STC,IPT,RNC: Compressor data from the above table
The data in the compressor motor column shall indicate the respective values of the refrigeration cycle.
6.3 Installation Example
To the 4 wires from wire controller
(for C/O units) or 5 wires from wire controller
(for E/Heater+C/O units and H/P units)
Main power switch unit
4 wires for Power supplies
Earth
Fig.6-1
6.4 Wiring provision
F ield wiring
The units are internally wired at the factory according to generally accepted electrical technology.
Required field wiring
Main power wiring to the unit control wiring between the control center and the unit, and earth wiring are required in the field.
Required components
The following components are required: main power fuses, conduit coupling, and field supplied room thermostat.
Wire and fuse size selection for main power source
Wire and fuse sizes should be selected in accordance with national and standard, taking the designed maximum current shall be the total of the compressor maximum current, condenser fan motor current and evaporator fan motor current(refer to “electrical data”).
Wire size between room thermostat and unit
The wire size between the room thermostat and the unit should be determined according to the following table, because the 24V power source is applied to the control circuit.
Tab.6-11
Wiring length between room thermostat and unit(one way)
10m 15m 20m 30m 40m
Minimum wire
size(mm 2 )
0.5
0.5
0.75
0.75
1.0
I&O manual
12
6.5 Main power supply
Tab.6-12
Model type Unit main power Main power switch
6Tons
7Tons
C/O
C/O
380 - 415V
3N~ 50Hz
380 - 415V
3N~ 50Hz
50A
50A
8Tons C/O
380 - 415V
3N~ 50Hz
63A
Fuse
40A
40A
50A
10Tons C/O
12Tons
15Tons C/O
18Tons
C/O
C/O
380 - 415V
3N~ 50Hz
380 - 415V
3N~ 50Hz
380 - 415V
3N~ 50Hz
380 - 415V
3N~ 50Hz
63A
75A
85A
100A
50A
63A
75A
80A
Wires for Power supplies
3×10mm 2 +2×6mm 2
3×10mm 2 +2×6mm 2
3×16mm 2 +2×10mm 2
3×16mm 2 +2×10mm
3×16mm 2 +2×10mm 2
3×25mm 2 +2×10mm 2
3×25mm 2 +2×10mm 2
20Tons C/O
25Tons C/O
380 - 415V
3N~ 50Hz
380 - 415V
3N~ 50Hz
100A
120A
80A 3×25mm 2 +2×10mm 2
100A 3×35mm 2 +2×10mm 2
I&O manual
13
6.6 Block cable connection
To connect with wire controller
For C/O Units
R G Y (C)
Power supply
For 380-415V / 3Ph / 50Hz
6 / 7 / 8 / 10 Tons C/O Units
L1 L2 L3 N
For 380-415V / 3Ph / 50Hz
12 / 15 / 18 / 20 / 25 Tons C/O Units
L1 L2 L3 N
Fig.6-3
Fig.6-2
Fig.6-4
Dial code settings
Set the dial code SW3 of PCB in roof-top unit’s wire control box as per the wire controller you are in using. After settings, please shut off the power supply and then power to it again, otherwise, the new settings function couldn’t work.
For C/O Units
KJR-1 2B
A
B
C
D
E
5-terminal
Group
BROW N
RED
YELLOW
BL ACK
WHITE
ON
1
SW3
CN7
CN9
MAIN CONTROL BOARD
CN36
R G Y C
TO THE WIRE CONTROLLER
XT2
See the left figure:
1. When SW3 has been set in “ON”, please select KJR-12B wire controller;
2. When SW3 has been set in “1”, please select the wire controller be recommended in the below.
KJR-23B (For C/O)
Remark:
Two stage capacity control is optional.
I&O manual
14
6.7 Error code
Tab.6-13
Type
Normal
Normal
Normal
Error
Error
Error
Error
Error
Error
Error
Error
Protection
Protection
Protection
Protection
Protection
Protection
Protection
Protection
Protection
Protection
Protection
Protection
Protection
Content
Standby
Constraint cool
Run
Compressor phase sequence error or phase default
Outdoor coil sensor in sys. A error
Outdoor coil sensor in sys. B error
Indoor coil sensor in sys. A error
Indoor coil sensor in sys. B error
Indoor sensor error
Outdoor ambient sensor error
Wire controller output error
Overcurrent protection in sys.A
Overcurrent protection in sys.B
Overcurrent protection for indoor fan
Comprehensive protection for outdoor fan
Protection for Hi./Lo. pressure or exhaust temp. in sys.A
Protection for Hi./Lo. pressure or exhaust temp. in sys.B
Hi-pressure protection initiated in T2 evaporator stops the outdoor unit fan
Hi-pressure protection initiated in T2 evaporator stops the outdoor unit fan and compressor
Protection for condenser Hi-temp. in sys.A
Protection for condenser Hi-temp. in sys.B
Anti-freezing protection for evaporator in sys. A
Anti-freezing protection for evaporator in sys. B
Defrosting
Code on
10.
E0
E1
E2
E5
E6
E9
EA
Eb
P0
P1
P2
P3
P4
P5
P6
P7
P8
P9
Pc
Pd dF
Remarks
Comprehensive protection in sys.A
Comprehensive protection in sys.B
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15
7. SPECIFICATION
7.1 Physical Data
R22 380-415V / 3Ph / 50Hz
Tab.7-1
Nominal ton
6 Tons
Model type C/O
Type of flow
Capacity
Performance
Cooling capacity (Btu/h) ( )
Heating capacity (Btu/h) ( )
Flow control ( )
Compressor
Outdoor coil
Indoor coil
Outdoor fan
Indoor fan
Filters ( )
Quantity
Quantity speeds
Quantity motors/power(kW)
Total nominal CFM
Quantity used/diameter(in.)
Quantity
Quantity
Quantity/Type
used/diameter(mm) speeds
motors/power(kW)
Total nominal CFM
Quantity size recommended
(mm)
Hor. & Dow.
73400
9.9
2089
1235
900
402
R22
Capillary
2/Scroll
3
15
3/8
2
17
3/8
1/650
Propeller
Direct
1
1/0.55
940±10
5880
1/10×10
FC centrifugal
Belt
Variable sheave
1/1.5
1440
2500
(4)
529X357X12.5
7 Tons
C/O
Hor. & Dow.
94000
8Tons
C/O
Hor. & Dow.
107000
10 Tons
C/O
Hor. & Dow.
127000
12 Tons
C/O
Hor. & Dow.
150000
15 Tons
C/O
Hor. & Dow.
180000
9.7
2089
1235
900
406
R22
Capillary
2/Scroll
3
15
3/8
2
17
3/8
1/650
Propeller
Direct
1
1/0.55
940±10
5880
1/10×10
FC centrifugal
Belt
Variable sheave
1/1.5
1440
3000
(4)
529X357X12.5
10.5
2165
1335
1002
441
R22
Capillary
2/Scroll
3
15
3/8
3
15
3/8
1/650
Propeller
Direct
1
1/0.60
930±30
7060
1/12×12
FC centrifugal
Belt
Variable sheave
1/1.5
1440
3400
(4)
566X404X12.5
10.3
2165
1335
1002
443
R22
Capillary
2/Scroll
3
15
3/8
3
15
3/8
1/650
Propeller
Direct
1
1/0.60
930±30
7060
1/12×12
FC centrifugal
Belt
Variable sheave
1/1.5
1440
4000
(4)
566X404X12.5
10.4
2229
1825
1245
700
R22
Capillary
2/Scroll
3
15
3/8
3
15
3/8
2/650
Propeller
Direct
1
2/0.60
930±30
10000
1/15×15
FC centrifugal
Belt
Variable sheave
1/5.5
1440
5000
(2)
1015X815X12.5
1
2/0.60
930±30
11000
1/15×15
FC centrifugal
Belt
Variable sheave
1/5.5
1440
6000
(2)
1015X815X12.5
9.4
2229
1825
1245
710
R22
Capillary
2/Scroll
3
15
3/8
3
15
3/8
2/650
Propeller
Direct
( ) Cooling capacities are rated at 95 F amblent, 80 F entering dry bulb, 67 F entering wet bulb. Air capacity is net and inculdes the effect of fan motor heat.Units are suitable for operation to ±20% of nominal CFM.
( ) Heating capacities are based on the following conditions:Indoor temperature 70 F entering dry bulb, 60 F entering dry bulb, outdoor temperature 47 F entering dry bulb, 43 F entering dry bulb.
( ) TXV is optional.
( ) Optional 2” pleated filters also available.
I&O manual
16
Tab.7-2
Nominal ton
Model type
Type of flow
Capacity
Performance
Cooling capacity (Btu/h) ( )
Heating capacity (Btu/h) ( )
Flow control ( )
Quantity/Type
Outdoor coil
Indoor coil
Quantity used/diameter(mm)
Outdoor fan
Quantity speeds
Quantity motors/power(kW)
Total nominal CFM
Quantity used/diameter(in.)
Indoor fan
Quantity speeds
Quantity motors/power(kW)
Filters ( )
Total nominal CFM
Quantity size recommended
(mm)
18 Tons
C/O
Hor. & Dow.
210000
10.0
2753
2157
1245
900
R22
Capillary
2/Scroll
3
15
3/8
3
15
3/8
2/750
Propeller
Direct
1
2/1.1
944
12500
1/18X18
FC centrifugal
Belt
Variable sheave
1/5.5
1440
6800
(2)
978X956X12.5
20 Tons
C/O
Hor. & Dow.
240000
15
3/8
3
15
3/8
2/750
Propeller
Direct
1
2/1.1
944
14000
1/18×18
FC centrifugal
Belt
Variable sheave
1/5.5
9.7
2753
2157
1245
930
R22
Capillary
2/Scroll
3
1440
7800
(2)
978X956X12.5
25 Tons
C/O
Hor.
300000
9.7
2753
2157
1245
980
R22
Capillary
2/Scroll
3.5
16
5/16
4
16
5/16
2/800
Propeller
Direct
1
2/1.5
910
16765
1/18×18
FC centrifugal
Belt
Variable sheave
1/7.5
1440
10200
(3)
964X640X12.5
( ) Cooling capacities are rated at 95 F amblent, 80 F entering dry bulb, 67 F entering wet bulb. Air capacity is net and inculdes the effect of fan motor heat.Units are suitable for operation to ±20% of nominal CFM.
( ) Heating capacities are based on the following conditions:Indoor temperature 70 F entering dry bulb, 60 F entering dry bulb, outdoor temperature 47 F entering dry bulb, 43 F entering dry bulb.
( ) TXV is optional.
( ) Optional 2” pleated filters also available.
I&O manual
17
7.2 Parameter For Air Volume
Parameter table for indoor unit air volume
Tab.7-3
6 Tons
Static pressure
(Pa)
0
20
40
60
75
100
120
150
Air flow
(CFM)
3350
3100
2702
2585
2402
2202
2100
1924
Brake power
(kW)
2.1
2.1
2.0
2.0
2.0
1.9
1.9
1.9
Fan speed
(rpm)
956
962
971
979
982
987
993
999
Tab.7-4
7 Tons
Static pressure
(Pa)
0
20
40
60
75
100
120
150
Air flow
(CFM)
3355
3235
3120
2900
2825
2350
2510
2355
Brake power
(kW)
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.9
Fan speed
(rpm)
1313
1321
1329
1335
1340
1345
1351
1357
Tab.7-5
8 Tons
Static pressure
(Pa)
0
20
40
60
75
100
120
150
Air flow
(CFM)
3904
3780
3580
3422
3386
3238
3129
3280
Brake power
(kW)
2.3
2.2
2.2
2.1
2.0
1.9
1.8
1.7
Fan speed
(rpm)
1200
1215
1228
1249
1258
1267
1275
1281
I&O manual
18
Tab.7-6
10 Tons
Static pressure
(Pa)
0
20
40
60
75
100
120
150
Air flow
(CFM)
4706
4529
4353
4716
4030
3873
3756
3588
Brake power
(kW)
2.5
2.4
2.3
2.2
2.1
2.0
1.9
1.9
Fan speed
(rpm)
1200
1210
1221
1235
1248
1255
1259
1265
Tab.7-7
12 Tons
Static pressure
(Pa)
0
20
40
60
75
100
120
150
Air flow
(CFM)
6250
5850
5500
5300
5150
4900
4750
4550
Brake power
(kW)
3.7
3.6
3.5
3.4
4.1
4.0
3.9
3.8
Fan speed
(rpm)
860
870
880
890
900
910
920
930
Tab.7-8
15 Tons
Static pressure
(Pa)
0
20
40
60
75
100
120
150
Air flow
(CFM)
6900
6700
6400
6500
6250
6000
5800
5530
Brake power
(kW)
4.6
4.5
4.45
4.33
4.25
4.15
4.0
3.9
Fan speed
(rpm)
1000
1010
1020
1030
1040
1050
1060
1070
Tab.7-9
18 Tons
Static pressure
(Pa)
0
20
40
60
75
100
120
150
Air flow
(CFM)
8100
7750
7520
7300
7150
6850
6670
6400
Brake power
(kW)
5.1
5.0
4.9
4.8
4.7
4.6
4.5
4.4
Fan speed
(rpm)
820
829
835
844
856
864
873
885
Tab.7-10
20 Tons
Static pressure
(Pa)
0
20
40
60
75
100
120
150
Air flow
(CFM)
8570
8440
8250
8150
8000
7810
7750
7600
Brake power
(kW)
5.6
5.5
5.4
5.3
5.2
5.1
5.0
4.9
Fan speed
(rpm)
902
906
910
914
918
920
925
928
Tab.7-11
25 Tons
Static pressure
(Pa)
0
75
125
170
200
225
250
300
Air flow
(CFM)
12450
11400
10000
10200
9900
9790
9300
8600
Brake power
(kW)
6.1
5.8
5.6
5.5
5.37
5.2
5.01
4.7
Fan speed
(rpm)
1000
1002
1005
1008
1010
1015
1017
1022
Curve diagram of static pressure, air flow volumn.
6 Tons
125
100
75
50
25
0
250
225
200
175
150
1765 2060 2355 2650 2945 3240 3535 3830
Air volume(CFM)
Fig.7-1
7 Tons
100
75
50
25
0
250
225
200
175
150
125
2060 2355 2650 2945 3240 3535 3830 4125
Air volume(CFM)
Fig.7-2
8 Tons
10 Tons
210
180
150
120
90
60
30
0
300
270
240
250
225
200
175
150
125
100
75
50
25
0
2600 2800 3000 3200 3400 3600 3800 4000
Air volume(CFM)
Fig.7-3
2900 3200 3500 3800 4100 4400 4700 5000
Air volume(CFM)
Fig.7-4
12 Tons
300
270
240
210
180
150
120
90
60
30
0
4250 4500 4750 5000 5250 5500 5750 6000 6250
Air volume(CFM)
Fig.7-5
I&O manual
19
15 Tons
300
270
240
210
180
150
120
90
60
30
0
4750 5000 5250 5500 5750 6000 6250 6500 6750 7000 7250
Air volume(CFM)
Fig.7-6
18 Tons
300
270
240
210
180
150
120
90
60
30
0
5200 5500 5800 6100 6400 6700 7000 7300 7600 7900 8200
Air volume(CFM)
Fig.7-7
20 Tons
30
0
90
60
150
120
300
270
240
210
180
7000 7150 7300 7450 7600 7750 7900 8050 8200 8350 8500
Air volume(CFM)
Fig.7-8
25 Tons
Tab.7-13
7 Tons
Static pressure
(Pa)
0
10
20
Air flow
(CFM)
5880
5647
5411
Brake power
(kW)
0.78
Fan speed
(rpm)
900
0.79
0.80
889
875
Tab.7-14
8 Tons
Static pressure
(Pa)
0
10
20
Air flow
(CFM)
7060
6765
6471
Brake power
(kW)
0.78
Fan speed
(rpm)
935
0.79
0.80
926
918
Air volume(CFM)
Fig.7-9
Parameter table for outdoor unit air volume
NOTE
Shield parts in below tables are standard working conditions for the unit.
Tab.7-12
6 Tons
Static pressure
(Pa)
0
10
20
Air flow
(CFM)
5880
5647
5411
Brake power
(kW)
0.78
Fan speed
(rpm)
900
0.79
0.80
889
875
I&O manual
20
Tab.7-15
10 Tons
Static pressure
(Pa)
0
10
20
Air flow
(CFM)
7060
6765
6471
Brake power
(kW)
0.78
Fan speed
(rpm)
935
0.79
0.80
926
918
Tab.7-16
12 Tons
Static pressure
(Pa)
0
10
20
Air flow
(CFM)
9000
8800
8600
Brake power
(kW)
0.78×2
Fan speed
(rpm)
935
0.79×2
0.80×2
926
918
Tab.7-17
15 Tons
Static pressure
(Pa)
0
10
20
Air flow
(CFM)
11000
9800
9600
Brake power
(kW)
0.78×2
Fan speed
(rpm)
935
0.79×2
0.80×2
926
918
Tab.7-18
18 Tons
Static pressure
(Pa)
0
10
20
Air flow
(CFM)
12500
12000
11700
Brake power
(kW)
0.78×2
Fan speed
(rpm)
945
0.79×2
0.80×2
938
930
Tab.7-19
20 Tons
Static pressure
(Pa)
0
10
20
Air flow
(CFM)
14000
13500
13100
Brake power
(kW)
1.3×2
Fan speed
(rpm)
940
1.4×2
1.5×2
938
930
Tab.7-20
25 Tons
Static pressure
(Pa)
0
10
20
Air flow
(CFM)
16765
16470
16176
Brake power
(kW)
1.7×2
Fan speed
(rpm)
910
1.6×2
1.5×2
900
890
7.3 Operating conditions
For proper performance, run the unit under the following temperature conditions:
Tab.7-21
Cooling operation
Outdoor temperature: 63°F to 126°F
Room temperature: 63°F to 86°F
Caution
Room relative humidity less than 80%. If the unit operates in excess of this figure the surface of the unit may attract condensation.
I&O manual
21
7.4 Capacity Data
Cooling capacity — 6 Tons
Tab.7-22
85
95
105
115
125
Air Flow
Ent DB
61
67
73
61
67
73
61
67
73
61
67
73
61
67
73
SHC
MBH
SHC
MBH
SHC
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
CFM 2100 2400 2600 2800
(F) 75
MBH
80 85 90
67.2 69.3 74.2 77.4
75 80 85 90
69.1 72.3 76.2 79.1
75 80 85 90
70.6 74.4 77.8 80.1
75 80 85 90
72.2 75.9 78.8 80.9
SHC
MBH
SHC
MBH
58.4 65.8
70.5 73.5
75.7 76.0 76.6 77.7
44.4 55.5 66.2 76.6
62.4
68.0 71.6 74.4
76.5 77.0 77.8 79.3
46.4 57.8 69.3 78.3
66.2
69.0 72.1 74.3
77.1 77.9 78.8 80.3
48.4 60.0 71.9
79.3
70.0
73.6 76.4 78.5
77.6 78.3 79.3 81.1
48.8 61.8 74.1
80.1
SHC
MBH
79.1 80.0 80.8 81.7
29.2 40.6 49.0 58.2
62.2 65.3 70.6 75.1
79.4 80.3 81.4 82.2
29.7 42.3 50.1 59.7
79.8 80.6 81.6 82.7
30.1 43.9 51.1
61.0
80.0 81.0 81.9 82.9
30.5 41.5 52.1
62.2
65.8 70.9 75.8 78.9 67.2 73.2 77.1 79.9
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
56.0
61.5 66.5 70.7
72.2 72.5 73.4 75.2
43.1 54.6 66.1 74.2
78.1 78.6 79.4 80.1
28.2
57.0
53.5
66.8
40.7
75.9
39.6 50.8 59.8
61.0
67.4
52.2
76.2
66.4
68.5
63.8
76.4
71.8
56.7 61.8 66.8
72.1
69.7
77.0
64.1 68.3 73.6 77.5
59.8
64.3 69.3 73.0
72.9 73.4 76.2 77.8
45.2 57.8 70.1 75.8
78.5 79.1 79.9 80.8
28.7 41.2 51.0 61.6
58.8
57.4
68.4
43.0
76.5
63.9
69.0
55.7
76.9
69.7
74.6
59.4 64.8 69.4
70.4
68.7
77.3
74.6
73.5
78.0
48.4 60.0
60.5
69.6
45.2
77.0
66.5
70.3
59.1
77.4
71.4 74.3 63.3 69.0 72.6 75.3
74.5 75.0 76.3 79.2
47.2 60.7 73.7
29.1 42.9 52.3
72.4
72.6
71.6
78.0
76.2
78.9 79.4 80.3 81.2
63.3
76.6
76.9
75.3
78.8
75.2 75.9 77.4 80.2
49.0 63.3 76.8
56.3 61.8 67.3 71.2 58.1 64.0 69.0
77.6
79.1 80.1 80.8 81.6
29.5 42.2 53.4
62.5
70.6
47.3
77.3
68.8
71.5
62.4
78.0
74.2
74.3
73.4
78.5
64.8
77.9
72.4
78.2
75.9
79.4
27.0
51.7
51.0
51.0
38.2
72.1
25.6
38.3
56.6
54.8
56.8
49.6
72.3
37.0
49.6
62.1
60.2
62.4
61.4
72.7
48.3
59.9
67.9
66.8
72.9
59.4
27.4
62.2
40.5
73.1
26.1
40.1
67.7 53.6 59.3
63.0
53.2
73.5
38.7
51.5
64.2
65.6 51.9 57.5 63.2
66.2
63.4
73.8
51.0
62.8
70.9
68.7
71.2 63.4
69.7
74.2
63.0
27.9
55.7
42.7
73.8
26.5
41.5
61.7
64.5
56.7
74.0
40.3
53.3
67.8
67.9
65.2
74.4
53.6
65.3
73.2
54.0 59.8 65.7 70.9
73.5
70.6
75.3
66.4
28.4
57.6
42.6
63.9
55.0
70.0
67.5
74.9
55.8 61.9 67.8
64.5 65.8
44.8
60.1
70.1
72.6
75.3
67.3 72.3
74.3
27.0
74.8
42.0
75.2
55.9
76.3
69.4
45.3
47.2 49.0 50.6 46.3 48.3 50.1
51.7 46.6 48.6 50.5 52.1 47.0 48.9 51.0 53.4
43.8 35.6 27.9 21.4 45.2 37.8 28.6 22.5 44.5 38.6 29.1 23.6 46.5 39.2 29.6 24.1
50.0
50.9
51.7 52.2 51.1 52.1 52.8 53.4 51.5 52.5 53.2 53.8 51.8 52.9 53.7
44.3 36.7 28.3 21.8 32.8 41.1 49.5 50.4 33.2 42.7 50.8 52.7 35.2 45.3 50.9
55.0
53.9
53.8 54.5 55.3 56.7 55.0 55.8 56.5 57.2 55.2 56.1 56.8 57.3 56.3 57.5 58.2 59.3
45.8 37.6 29.2 22.3 46.3 38.2 31.6 24.5 47.2 38.9 32.3 25.6 48.9 39.0 33.4 25.3
Notes: 1.All capacities are gross and have not considered indoor fan heat.To obtain NET cooling capacity
subtract indoor fan heat.
2.MBH=Total Gross Capacity. (Unit:1000Btu/h)
3.SHC=Sensible Heat Capacity.(Unit:1000Btu/h)
I&O manual
22
Cooling capacity — 7 Tons
Tab.7-23
85
95
105
115
125
Air Flow
Ent DB
61
67
73
61
67
73
61
67
73
61
67
73
61
67
73
CFM 2700 3000 3300 3600
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
(F) 75 80 85 90 75 80 85 90 75 80 85 90 75 80 85 90
MBH
SHC
82.5 84.2 85.8 87.5 87.3 89.0 90.8 92.6 89.3 91.1 92.9 94.8 91.0 92.8 94.7 96.6
72.7 80.4 85.3 87.5 77.4 84.3 88.2 91.1 82.0 84.5 87.9 92.3 86.2 90.3 93.5 95.2
MBH 94.8 96.7 98.6 100.6 95.9 97.8 99.8 101.8 96.7 98.6 100.6 102.6 97.3 99.2 101.2 103.3
SHC
MBH
55.6 68.8 81.8 94.3 58.0 72.6 85.4 96.3 59.5 73.8 88.2 100.1 60.8 75.8 90.7 100.8
98.6 100.6 102.6 104.6 99.2 101.2 103.2 105.2 99.4 101.4 103.4 105.5 99.7 101.7 103.7 105.8
SHC
MBH
SHC
MBH
36.8 51.0 62.0 72.4 37.3 50.7 62.3 75.1 37.8 54.8 63.3 75.4 38.3 56.7 64.2 76.8
78.6 80.2 81.8 83.4 81.0 82.6 84.3 86.0 83.3 85.0 86.7 88.4 85.3 87.0 88.7 90.5
69.6 75.6 78.0 81.4 72.3 78.6 81.2 85.3 75.2 79.3 83.5 86.7 83.8 85.1 87.2 89.3
85.6 87.3 89.1 90.8 87.1 94.0 96.6 98.0 91.4 96.2 98.1 99.8 93.2 98.1 100.9 101.9
53.9 67.7 81.6 86.2 56.3 71.6 86.5 91.3 58.7 75.0 90.8 92.0 61.1 78.1 94.5 95.9
97.8 99.8 101.8 103.8 98.3 100.3 102.3 104.3 98.7 100.7 102.7 104.7 98.6 100.6 102.6 104.6
35.7 50.2 62.3 74.5 36.2 51.2 64.1 77.3 36.8 52.0 65.6 79.2 37.3 55.6 66.9 81.1
72.1 73.5 75.0 76.5 74.4 75.9 77.4 79.0 76.5 78.0 79.6 81.2 78.4 80.0 81.6 83.2
66.4 68.3 71.3 73.2 71.2 72.4 76.3 78.4 75.3 76.5 77.9 80.4 76.1 78.6 80.3 82.5
84.4 86.1 87.8 89.6 86.3 88.0 89.8 91.6 87.8 89.6 91.3 93.2 89.1 90.9 92.7 94.6
51.0 65.0 79.2 86.3 53.7 66.2 85.0 90.3 56.3 73.3 90.6 92.3 58.8 77.2 90.1 92.4
95.3 97.2 99.2 101.1 95.2 97.1 99.0 101.0 96.7 98.6 100.6 102.6 97.1 99.0 101.0 103.0
34.2 48.9 64.2 76.8 34.1 50.4 65.6 78.8 35.4 52.2 67.2 80.9 35.9 53.4 68.9 83.5
65.3 66.6 67.9 69.3 67.2 68.5 69.9 71.3 69.8 71.2 72.6 74.1 72.1 73.5 75.0 76.5
63.2 64.6 66.4 68.6 61.2 64.3 67.6 69.1 67.3 69.1 71.0 73.2 70.3 71.2 73.6 75.8
76.7 78.2 79.8 81.4 78.5 80.1 81.7 83.3 80.1 81.7 83.3 85.0 81.5 83.1 84.8 86.5
47.8 62.1 75.4 80.2 50.5 66.0 78.3 82.1 53.1 70.2 82.1 84.6 55.7 74.4 82.1 85.6
90.8 92.6 94.5 96.4
86.0 87.7 89.5 91.3 92.9 94.8 96.7 98.6 93.6 95.5 97.4 99.3
SHC
32.4 46.3 61.2 76.4 33.0 48.4 63.5 78.1 33.7 50.4 66.6 82.3 34.3 52.5 69.4 85.9
59.9 61.1 62.3 63.6 61.7 62.9 64.1 65.4 64.0 65.3 66.6 68.0 66.1 67.5 68.8 70.2
58.0 59.3 60.9 62.9 56.1 59.0 62.0 63.4 61.7 63.4 65.1 67.2 64.5 65.3 67.5 69.5
70.4 71.8 73.2 74.7 72.0 73.5 74.9 76.4 73.5 75.0 76.5 78.0 74.8 76.3 77.8 79.3
43.9
83.3
29.7
57.0
85.0
42.5
69.2
86.7
56.1
73.6
88.4
70.1
46.3
78.9
30.3
60.6
80.5
44.4
71.8
82.1
58.3
75.3
83.7
71.7
48.7
85.2
30.9
64.4
86.9
46.2
75.3
88.7
61.1
77.6
90.4
75.5
51.1
85.9
31.5
68.3
87.6
48.2
75.3
89.3
63.7
78.5
91.1
78.8
Notes: 1.All capacities are gross and have not considered indoor fan heat.To obtain NET cooling capacity
subtract indoor fan heat.
2.MBH=Total Gross Capacity. (Unit:1000Btu/h)
3.SHC=Sensible Heat Capacity. (Unit:1000Btu/h)
I&O manual
23
Cooling capacity — 8 Tons
Tab.7-24
85
95
105
115
Air Flow CFM
Ent DB
61
67
73
61
67
73
61
67
73
61
67
73
61
(F)
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
75 80
2700
85 90 75 80
3000
85 90
101.4 103.2 104.7 105.6 106.7 108.6 110.2 111.4
75 80
3400
109.0 110.9
85 90
112.5 113.7
75 80
3700
111.4 113.2
85 90
91.6 95.5 99.3 102.4 96.5 100.7 104.5 107.8 98.6 102.8 106.7 110.2 100.7 105.1 109.2 112.5
71.4 82.1 90.1 94.9 76.8 88.1 96.6 101.7 80.8 92.8 101.7 107.1 83.2 95.6 104.5 110.3
115.0 116.3
54.1 67.9 81.7 90.6 58.1 72.8 87.7 97.3 61.2 76.6 92.3 102.6 63.2 79.8 96.3 106.4
75 80
4000
85
101.5 105.6 109.2
85.2 98.1
107.3
90
113.6
111.9
112.2 114.3 115.9
117.2
64.7 81.0
97.5
108.4
103.2
104.8
106.4 107.7
108.6
109.5 111.2 113.5 112.4 114.1 115.8 117.1 116.1 117.3 118.5 119.8
113.6 115.1 116.8
118.3
23.9 44.5 61.6 74.9 25.8 48.3 67.9 86.1 27.2 56.3 74.6 97.8 33.1 69.2 94.7 110.6
36.1 64.3
89.3
105.8
88.5 92.3 95.8 99.0 93.1 97.1 100.8 104.2 95.1 99.2 102.9
72.6 83.2 91.7 96.3 78.2 89.8 98.6 103.7 82.4 94.6
98.1
106.3 97.2 101.4
102.1 84.8 97.3
105.2 108.7
100.9 104.3
97.9 102.2 106.1
109.5
87.0
97.8 99.6 101.0 102.3 102.7 104.8
106.3 107.4
105.1 107.0
108.5 109.7
107.4 109.4
111.0 112.1
108.3
98.1 103.8
110.2 111.8
107.3
113.0
55.2 68.7 83.4 92.4 59.2 74.3 89.4 99.8 62.4 78.1 94.1 104.5 64.2 80.5 96.8 107.8
65.9
105.1 106.3
107.5
109.1 110.7 111.8 112.9 114.1 113.2 114.6 116.3 118.7 115.1 116.3 117.6 118.9
114.1
26.4 55.2 67.8 88.9 26.1 48.9 69.8 82.3 30.8 67.2 94.3 106.7
83.7
34.3 72.1 102.7 114.3
102.8
30.1
83.2 99.8
115.3 116.7
55.3 76.4
111.4
118.1
95.6
100.3
103.6
69.7 80.0 87.7 92.3 74.7 85.8 94.1 98.5 78.7 90.4 93.5 96.5 81.0 93.0 95.7 98 6 83.2 95.5 98.2
101.5
92.6 94.2 95.8 97.1 97.4 99.1 100.5 101.7 99.5 101.2 102.7 103.8 101.7 103.5 105.0 106.1 102.5 104.3 105.7 106.9
52.8 66.1 79.5 88.4 56.6 70.8 86.1 98.3 59.6 74.7 89.9 99.8 61.5 76.8 92.6 102.8 63.0 78.9 95.2 105.6
94.5 96.1 97.8 99.4 104.1 105.6 107.2 108.6 106.9 108.3 109.7 111.2 105.9 107.2 108.4 109.8 106.3 107.5 108.9 110.2
23.3 44.7 59.8 72.6 82.3 87.1 90.6 99.8 31.2 67.4 98.6 106.8 35.2 54.8 73.2 93.6 28.9 53.8 74.6 88.5
78.3 81.6 84.7 87.6 82.3 86.1 89.6 92.3 84.1 87.7 92.1 94.0 85.9 89.7 93.0 96.1 86.6 90.4 93.8 96.7
67.2 77.1 83.5 86.6 72.0 82.7 89.1 92.0 75.8 87.1 91.0 92.7 78.1 82.7 91.0 93.1 80.1 83.4 91.8 95.7
86.5 88.1 89.3 90.6 91.0 92.6 94.0 95.4 92.9 94.6 96.0 97.1 95.0 96.7 98.1 99.2 95.7 97.5 98.9 99.9
50.9 63.7 76.7 85.2 54.5 68.7 82.3 94.6 57.4 71.9 86.6 96.2 59.1 74.0 89.2 95.3 60.7 76.0 91.5 96.5
95.1 96.4 97.8 99.8 97.8 99.3 101.4 103.6 99.9 101.3 103.4 105.2 101.1 102.6 103.9 105.7 102.5 103.7 104.8 106.2
71.2 74.2 77.0 79.6 74.8 78.3 81.5 83.9 76.5 79.7 83.7 85.5 78.1 81.5 84.5 87.4 78.7 82.2 85.3 87.9
61.1 70.1 76.8 78.5 65.5 75.2 81.0 83.6 68.9 79.2 82.7 84.3 71.0 79.6 84.5 87.4 72.8 80.2 83.3 85.9
125 67
73
MBH
SHC
MBH
SHC
78.6 80.1 81.2 82.4 82.7 84.2 85.5 86.7 84.5 86.0 87.3 88.3 86.4 87.9 89.2 90.2 87.0 88.6 89.9 90.8
46.3 57.9 69.7 77.5 49.5 62.5 74.8 86.0 52.2 65.4 78.7 87.5 53.7 67.3 81.1 87.2 55.2 69.1 83.2 88.8
86.5 87.6 88.9 90.7 88.9 90.3 92.2 94.2 90.8 92.1 94.0 95.6 91.9 93.3 94.5 96.1 93.2 94.3 95.3 96.5
20.5 38.0 52.5 64.1 25.7 48.4 81.0 92.4 29.2 62.2 89.9 94.2 32.5 62.6 84.9 94.8 28.3 51.2 65.8 77.5
Notes:1.All capacities are gross and have not considered indoor fan heat.To obtain NET cooling capacity
subtract indoor fan heat.
2.MBH=Total Gross Capacity. (Unit:1000Btu/h)
3.SHC=Sensible Heat Capacity. (Unit:1000Btu/h)
I&O manual
24
Cooling capacity — 10 Tons
Tab.7-25
85
95
105
115
125
Air Flow
Ent DB
61
67
73
61
67
73
61
67
73
61
67
73
61
67
73
CFM 3600 4000 4400 4800
(F) 75 80 85 90 75 80 85 90 75 80 85 90 75 80 85 90
MBH 110.9 113.1 115.4 117.7 113.8 116.1 118.4 120.8 116.5 118.8 121.2 123.6 118.6 121.0 123.4 125.9
SHC 96.8 98.7 100.7 102.7 103.2 105.3 107.4 109.5 109.2 111.4 113.6 115.9 114.7 117.0 119.3 121.7
MBH 123.4 125.9 128.4 131.0 124.6 127.1 129.6 132.2 125.7 128.2 130.8 133.4 126.3 130.0 131.4 134.0
SHC
MBH
SHC
73.2 92.0 108.3 124.8 75.6 94.3 112.8 128.5 78.0 97.3 116.5 130.4 79.6 99.7 119.4 131.2
127.9 130.5 133.1 135.7 128.3 130.9 133.5 136.2 128.6 131.2 133.8 136.5 129.8 132.4 135.0 137.7
47.7 64.9 79.6 95.3 48.3 65.8 81.2 96.7 49.0 72.1 82.4 98.4 49.7 75.6 84.2 101.3
MBH
SHC
MBH
102.8 104.9 107.0 109.1 105.9 108.0 110.2 112.4 108.9 111.1 113.3 115.6 111.1 113.1 115.6 117.9
92.7 94.6 96.4 98.4 99.2 101.2 103.2 105.3 105.4 107.5 109.7 111.9 100.5 102.5 104.6 106.7
118.7 121.1 123.5 126.0 122.5 127.0 128.5 130.1 123.8 128.0 128.7 132.3 125.1 129.4 130.0 133.3
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
70.8 89.8 108.6 123.4 74.3 94.8 114.0 124.3 77.4 99.3 120.3 128.4 80.2 103.2 125.7 128.2
126.8 129.3 131.9 134.6 127.1 129.6 132.2 134.9 127.8 130.4 133.0 135.6 128.1 130.7 133.3 135.9
46.3 65.4 81.5 97.8 47.2 66.7 84.3 101.9 47.5 67.6 85.8 104.7 48.4 68.7 87.9 106.8
94.5 96.4 98.3 100.3 97.8 99.8 101.8 103.8 99.8 101.8 103.8 105.9 103.5 105.6 107.7 109.8
88.6 90.4 92.2 94.0 95.2 97.1 99.0 101.0 93.4 95.3 97.2 99.1 101.2 103.2 105.3 107.4
110.3 112.5 114.8 117.1 112.9 115.2 117.5 119.8 114.6 116.9 119.2 121.6 116.3 118.6 121.0 123.4
67.6 86.4 105.9 115.6 71.3 92.1 113.7 117.9 74.2 98.3 115.5 117.6 77.8 102.8 115.6 121.3
123.8 126.3 128.8 131.4 124.6 127.1 129.6 132.2 125.2 127.7 130.3 132.9 125.8 128.3 130.9 133.5
SHC
MBH
44.3 63.2 81.0 98.3 45.2 65.6 85.3 103.7 45.7 67.5 86.9 106.8 46.3 69.7 91.2 110.4
86.3 88.0 89.8 91.6 89.2 91.0 92.8 94.7 92.3 94.1 96.0 97.9 95.8 97.7 99.7 101.7
84.6 86.3 88.0 89.8 86.2 87.9 89.7 91.5 90.2 92.0 93.8 95.7 94.3 96.2 98.1 100.1
SHC
MBH
SHC
MBH
101.3 103.3 105.4 107.5 103.2 107.0 107.4 109.5 105.6 107.7 109.9 112.1 108.2 110.4 112.6 114.8
63.5 83.2 102.1 104.1 67.3 88.2 105.3 107.4 70.8 94.1 107.3 110.5 74.1 99.6 110.3 112.5
119.2 121.6 124.0 126.5 120.1 122.5 125.0 127.5 120.8 123.2 125.7 128.2 121.1 123.5 126.0 128.5
SHC
MBH
SHC
42.2 61.3 80.1 98.7 42.9 64.1 84.3 104.1 43.7 66.8 87.9 109.3 44.3 69.1 91.2 112.7
78.5 80.0 81.6 83.3 81.1 82.7 84.4 86.1 83.9 85.6 87.8 89.0 87.1 88.8 90.6 92.4
76.9 78.4 80.0 81.6 78.4 79.9 81.5 83.2 82.0 83.6 85.3 87.0 85.7 87.4 89.2 91.0
MBH
SHC
MBH
SHC
92.1 93.9 95.8 97.7 93.8 97.9 98.2 99.6 96.0 98.1 99.9 101.9 98.4 100.3 102.3 104.4
57.7 75.6 92.8 94.7 61.2 80.2 95.7 97.6 64.4 85.5 97.5 100.5 67.4 90.5 100.3 102.3
108.4 110.5 112.7 115.0 109.2 111.4 113.6 115.9 109.8 112.0 114.3 116.5 110.1 112.3 114.5 116.8
38.4 55.7 72.8 89.7 39.0 58.3 76.6 94.6 39.7 60.7 79.9 99.4 40.3 62.8 82.9 102.5
Notes:1.All capacities are gross and have not considered indoor fan heat.To obtain NET cooling capacity
subtract indoor fan heat.
2.MBH=Total Gross Capacity. (Unit:1000Btu/h)
3.SHC=Sensible Heat Capacity. (Unit:1000Btu/h)
I&O manual
25
Cooling capacity — 12 Tons
Tab.7-26
85
95
105
115
125
Air Flow
Ent DB
61
67
73
61
67
73
61
67
73
61
67
73
61
67
73
CFM 4500 5000 5500 6000
(F) 75 80 85
MBH
9 0 75 80 85 90 7 5 8 0 8 5 9 0 7 5 8 0 8 5 9 0
133.0 134.6
140.6
148.5
136.6
139.5
145.5
153.4
138.1
141.6
150.5
157.4
143.6
145.5
153.5
159.4
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
106.9 126.7
135.0
142.6
112.8
134.6
141.1
148.8
118.8
134.5
143.0
149.5
123.8
138.2
145.8
151.4
149.0 150.8
152.5
154.6
153.4
154.5
155.4
156.4
155.3
156.5
157.4
158.6
156.5
157.4
159.4
160.4
85.1 103.9
121.8
140.6
88.9
107.9
127.7
146.5
90.4
110.9
131.7
152.5
92.4
113.9
135.6
157.4
157.4 160.4
162.4
164.4
159.2
161.4
164.4
166.3
161.2
163.4
165.3
167.3
163.4
166.0
168.0
170.0
58.7 78.7
95.1
110.9
59.8
80.5
97.2
112.7
60.9
81.2
98.9
116.8
61.9
82.1
100.1
120.0
124.7 127.7
133.7
142.6
126.3
131.7
139.6
147.5
130.7
133.7
143.6
151.5
133.7
138.6
147.5
154.5
101.9 121.8
124.7
131.6
107.9
126.4
134.0
141.6
113.9
127.0
136.4
143.9
118.8
133.1
141.6
148.3
139.6 141.6
143.6
146.5
145.5
150.0
151.5
152.5
151.5
153.6
154.6
156.4
152.0
155.0
157.0
158.0
81.2 100.0
118.8
137.6
84.6
104.9
124.8
145.5
87.9
108.0
130.7
151.5
90.3
112.9
135.6
156.0
153.5 155.4
157.3
159.4
154.6
156.3
158.7
161.4
156.0
158.0
160.0
161.0
159.0
162.0
164.0
166.0
56.1 75.7
93.3
109.9
57.3
78.3
95.8
113.9
58.4
79.6
98.1
116.8
59.5
80.9
100.0
119.8
116.0 119.0
125.0
135.0
120.0
123.0
133.0
139.0
122.0
127.0
138.0
147.0
125.0
132.0
142.0
150.0
97.2 104.0
113.0
125.0
104.0
111.0
122.0
129.0
110.0
116.0
128.0
137.0
113.9
128.0
137.7
145.5
133.0 135.0
138.0
139.0
134.0
137.0
141.0
143.0
141.0
143.0
145.0
149.0
144.0
146.0
148.0
153.1
76.9 96.0
114.9
134.7
88.6
101.0
121.8
143.0
83.4
105.9
127.7
141.0
86.4
109.9
133.7
150.0
151.0 152.0
153.0
154.0
153.0
154.0
155.0
157.0
155.0
156.0
157.0
158.0
156.0
157.0
158.0
160.0
53.3 72.5
90.8
108.0
54.5
75.1
93.9
112.9
55.5
77.5
106.0 110.0
120.0
130.0
109.0
115.0
125.0
135.0
112.0
120.0
96.4
115.8
56.6
78.5
98.8
121.0
129.0
138.0
115.0
123.0
134.0
143.0
93.1 106.7
116.4
126.1
98.9
111.6
121.3
131.0
104.0
115.2
123.8
132.5
103.9
110.7
120.6
128.7
125.0 127.0
128.0
130.0
126.0
129.0
131.0
133.0
133.0
135.0
138.0
140.0
136.0
138.0
140.0
145.0
80.0 92.2
111.0
127.0
84.0
97.5
118.0
121.0
88.0
102.0
123.0
125.0
82.8
107.0
131.0
143.0
141.0 143.0
145.0
146.0
145.0
147.0
148.0
149.0
148.0
149.0
150.0
151.0
149.0
150.0
151.0
152.0
50.5 69.6
101.9
104.4
88.5
107.0
108.0
109.4
51.6
104.8
73.0
107.1
92.0
109.0
111.0
111.6
54.0
75.0
109.0
110.9
96.0
117.0
54.0
78.0
98.0
119.0
113.1
115.4
112.7
115.1
117.7
119.7
93.5
103.4
96.1
83.9
105.9
85.2
69.7
109.5 110.8
75.1
66.8
67.6
96.5
99.9
89.9
91.5
74.3
76.4
68.6
69.5
97.2
101.4
91.0
75.2
69.3
99.7
121.2
123.8
126.2
129.1
123.9
126.6
129.4
131.7
127.2
130.0
132.4
135.3
92.8
77.8
70.3
103.3
92.7
94.2
76.2
78.9
70.0
71.6
106.7
109.3
103.0
89.9
111.9 114.4
141.1
143.7
146.5
149.6
141.9
145.7
147.7
150.6
142.2
145.9
148.4
151.0
80.1
69.7
103.8
93.1
77.8
70.7
105.4
96.3
81.2
71.7
107.2
97.2
82.5
72.8
Notes: 1.All capacities are gross and have not considered indoor fan heat.To obtain NET cooling capacity
subtract indoor fan heat.
2.MBH=Total Gross Capacity. (Unit:1000Btu/h)
3.SHC=Sensible Heat Capacity. (Unit:1000Btu/h)
I&O manual
26
Cooling capacity — 15 Tons
Tab.7-27
85
95
105
115
125
Air
Ent
61
67
73
61
67
73
61
67
73
61
67
73
61
67
73
Flow
DB
CFM 5500 6000 6500 7000
(F) 75 80 85
MBH
9 0 75 80 85 90 7 5 8 0 8 5 9 0 7 5 8 0 8 5 9 0
163.6
165.6
172.9
182.7
168.0
171.6
179.0
188.7
169.9
174.2
185.1
193.6
176.6
179.0
188.8
196.1
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
131.5
155.8
166.0
175.3
138.7
165.6
173.6
183.0
146.1
167.2
177.7
185.9
152.3
171.8
181.3
188.2
183.3
185.5
187.6
190.2
188.7
190.0
191.1
192.4
191.0
192.5
193.6
195.1
192.5
193.6
196.1
197.3
104.7
127.8
149.8
172.9
109.3
132.7
157.1
180.2
111.2
136.4
162.0
187.6
113.7
140.1
166.8
193.6
193.6
197.3
199.8
202.2
195.8
198.5
202.2
204.5
198.3
201.0
203.3
205.8
201.0
204.2
206.6
209.1
72.2
96.8
117.0
136.4
73.6
99.0
119.6
138.6
74.9
99.9
121.6
143.7
76.1
101.0
123.1
153.4
157.1
164.5
175.4
155.3
162.0
171.7
181.4
160.8
164.5
176.6
186.3
164.5
170.5
181.4
147.6
190.0
125.3
149.8
159.5
170.1
132.7
157.1
166.6
176.0
140.1
159.5
171.3
180.8
146.1
165.4
176.0
184.3
171.7
174.2
176.6
180.2
179.0
180.0
182.7
183.9
185.1
186.5
187.7
188.7
185.7
188.2
189.8
197.9
99.9
123.0
146.1
169.2
104.1
129.0
153.5
179.0
108.1
132.8
160.8
186.3
111.1
138.9
166.8
188.8
191.1
193.5
196.1
190.2
192.2
195.2
198.5
191.9
194.3
196.8
198.0
195.6
199.3
201.7
188.9
204.2
69.0
93.1
114.8
135.2
70.5
96.3
117.8
140.1
71.8
97.9
120.7
143.7
73.2
99.5
123.0
147.4
142.7
146.4
153.8
166.1
147.6
151.3
163.6
171.0
150.1
156.2
169.7
180.8
153.8
162.4
174.7
184.5
119.6
140.5
147.6
159.4
127.9
145.2
157.0
164.1
135.3
151.5
164.6
173.2
140.1
157.5
169.4
179.0
163.6
166.1
169.7
171.0
164.8
168.5
173.4
175.9
173.4
175.9
178.4
180.8
177.1
179.6
182.0
186.5
94.6
118.1
141.3
165.7
109.0
124.2
149.8
170.6
102.6
130.3
157.1
175.4
106.3
135.2
164.5
184.5
185.7
187.0
188.2
189.4
188.2
189.4
190.7
193.1
190.7
191.9
193.1
194.3
191.9
193.1
194.3
196.8
65.6
89.2
111.7
132.8
67.0
92.3
115.5
138.9
68.3
95.3
118.6
142.4
69.6
96.6
121.5
130.4
135.3
147.6
159.9
134.1
141.5
153.8
166.1
137.8
140.4
150.9
172.2
141.5
151.3
164.8
148.8
175.9
114.5
131.2
143.2
155.1
121.6
135.8
147.6
159.4
127.9
136.2
146.9
167.0
127.3
146.8
159.9
170.6
153.8
156.2
157.4
159.9
155.0
158.7
161.1
163.6
163.6
166.1
169.7
174.0
167.3
169.7
172.2
175.9
98.4
113.4
136.5
159.9
103.3
119.9
145.1
163.6
108.2
125.5
151.3
168.8
101.8
131.6
161.1
173.4
175.9
178.4
179.6
178.4
180.8
182.0
183.3
182.0
183.3
184.5
185.7
183.3
184.5
185.7
172.4
187.0
62.1
85.6
108.9
131.6
63.5
89.8
113.2
136.5
66.4
92.3
118.1
143.9
66.4
95.9
120.5
146.4
125.4
130.1
141.9
152.1
128.9
136.0
147.8
159.7
132.5
140.7
153.8
165.6
136.0
145.5
158.5
169.1
110.1
126.2
137.7
147.5
117.0
131.9
143.4
154.9
123.0
136.5
149.1
160.6
122.4
139.7
152.1
147.8
150.2
151.4
153.8
149.0
152.6
154.9
157.3
157.3
159.7
163.2
167.1
160.8
163.2
165.6
162.4
171.1
87.6
109.0
131.3
153.8
99.0
115.3
139.6
152.6
104.1
120.6
145.5
162.1
97.9
126.5
154.9
166.0
166.8
169.1
171.5
172.7
171.5
173.9
175.0
176.2
175.0
176.2
177.4
178.6
176.2
177.4
178.6
179.8
59.7
82.3
104.7
126.5
61.0
86.3
108.8
131.3
63.9
88.7
113.5
138.4
63.9
92.3
115.9
140.7
Notes: 1.All capacities are gross and have not considered indoor fan heat.To obtain NET cooling capacity
subtract indoor fan heat.
2.MBH=Total Gross Capacity. (Unit:1000Btu/h)
3.SHC=Sensible Heat Capacity. (Unit:1000Btu/h)
I&O manual
27
Cooling capacity — 18 Tons
Tab.7-28
85
95
105
115
125
Air Flow
Ent DB
61
67
73
61
67
73
61
67
73
61
67
73
61
67
73
CFM 6500 7000 7500 8000
(F) 75 80 85
MBH
9 0 75 80 85 90 7 5 8 0 8 5 9 0 7 5 8 0 8 5
191.4
193.7
202.3
213.7
196.6
200.7
209.4
220.7
198.7
203.8
216.6
226.5
206.6
209.4
220.9
9 0
229.4
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
MBH
SHC
153.8
182.3
196.3
207.3
162.3
193.7
203.1
214.1
171.0
197.6
210.1
219.7
178.1
203.1
214.3
222.5
214.4
217.0
219.4
222.5
220.7
222.3
223.6
225.1
223.5
225.2
226.5
228.2
225.2
226.5
229.4
230.8
122.5
149.5
175.3
202.3
127.9
155.3
183.8
210.8
130.1
159.6
189.5
219.4
133.0
163.9
195.1
226.5
226.5
230.8
233.7
236.6
229.1
232.3
236.6
239.3
232.0
235.1
237.9
240.7
235.1
238.9
241.8
244.6
84.5
113.2
136.8
159.6
86.1
115.8
139.9
162.2
87.6
116.8
142.3
168.1
89.1
118.1
144.0
179.4
183.8
192.4
205.2
181.7
189.5
200.9
212.3
188.1
192.4
206.6
218.0
192.4
199.4
212.3
172.7
222.3
146.6
175.3
186.6
199.0
155.3
183.8
194.9
205.9
163.9
186.6
200.4
211.5
171.0
193.5
205.9
215.7
200.9
203.8
206.6
208.0
207.0
216.6
218.2
219.6
220.7
217.3
220.2
222.0
224.5
116.8
143.9
171.0
198.0
121.7
151.0
179.6
209.4
126.5
155.4
188.1
218.0
129.9
162.5
195.1
219.5
220.9
223.6
226.4
229.4
222.5
224.9
228.4
232.3
224.5
227.4
230.2
231.7
228.8
233.1
236.0
238.9
80.7
108.9
134.3
158.1
82.5
112.7
137.9
163.9
84.0
114.5
141.2
168.1
85.6
116.4
143.9
172.4
166.9
171.2
179.9
194.3
172.7
177.0
191.4
200.0
175.6
182.8
198.6
211.5
179.9
189.9
204.3
139.9
166.1
174.5
188.4
149.7
171.7
185.6
194.0
158.3
177.3
192.6
205.2
163.9
186.1
200.3
215.9
211.5
191.4
194.3
198.6
200.0
192.8
197.1
202.9
205.8
202.9
205.8
208.7
211.5
207.2
210.1
213.0
217.9
110.7
138.1
165.3
193.8
127.5
145.3
175.3
199.6
120.0
152.4
183.8
201.5
124.3
158.1
192.4
210.9
217.3
218.7
220.2
221.6
220.2
221.6
223.0
225.9
223.0
224.5
225.9
227.4
224.5
225.9
227.4
76.7
104.3
130.7
155.4
78.4
108.0
135.1
162.5
79.9
111.5
138.7
166.6
81.4
113.0
142.2
230.2
174.1
152.5
158.3
172.7
187.1
156.9
165.5
179.9
194.3
161.2
171.2
187.1
201.5
165.5
177.0
192.8
205.8
134.0
145.3
161.7
170.1
142.3
155.5
168.9
184.3
149.7
161.2
167.1
191.5
155.5
167.0
182.8
195.8
179.9
182.8
184.2
187.1
181.3
185.6
188.5
191.4
191.4
194.3
198.6
201.5
195.7
198.6
201.5
207.8
115.1
132.7
159.7
167.1
120.9
140.3
169.8
181.4
126.6
146.8
177.0
191.5
119.1
154.0
188.5
200.8
202.9
205.8
208.7
210.1
208.7
211.5
213.0
214.4
213.0
214.4
215.9
217.3
214.4
215.9
217.3
218.7
72.7
100.2
127.4
154.0
74.3
105.0
132.4
159.7
77.7
107.9
138.1
168.4
77.7
112.2
141.0
171.2
145.3
150.8
164.5
178.2
149.4
157.6
171.3
185.0
153.5
163.1
172.8
191.9
157.6
168.6
183.6
127.6
146.2
159.5
172.8
135.5
152.9
166.2
179.5
142.5
158.2
172.8
186.1
140.3
163.5
178.1
196.0
190.1
171.3
174.1
175.4
180.2
172.7
176.8
179.5
182.3
182.3
185.0
189.1
192.9
186.4
189.1
191.9
196.0
109.6
126.4
152.1
178.2
115.1
133.6
161.7
171.3
120.6
139.8
168.6
181.9
113.5
146.6
179.5
186.0
193.2
196.4
198.7
200.1
198.7
201.4
202.8
204.2
202.8
204.2
205.6
206.9
204.2
205.6
206.9
208.3
69.2
95.4
121.3
146.6
70.7
100.0
126.1
152.1
74.0
102.8
131.6
160.3
74.0
106.9
134.3
163.1
Notes: 1.All capacities are gross and have not considered indoor fan heat.To obtain NET cooling capacity
subtract indoor fan heat.
2.MBH=Total Gross Capacity. (Unit:1000Btu/h)
3.SHC=Sensible Heat Capacity. (Unit:1000Btu/h)
I&O manual
28
Cooling capacity — 20 Tons
Tab.7-29
85
95
105
115
125
Air Flow
Ent DB
61
67
73
61
67
73
61
67
73
61
67
73
61
67
73
CFM 7500 8000 8500 9000
(F) 75 80 85
MBH
9 0 75 80 85 90 7 5 8 0 8 5 9 0 7 5 8 0 8 5
216.1
218.7
228.5
241.3
222.0
226.7
236.4
249.3
224.4
230.1
244.6
255.8
233.4
236.4
249.4
SHC
MBH
173.7
205.9
221.6
234.1
183.3
218.7
229.3
241.8
193.1
223.2
237.2
248.1
201.2
229.3
242.0
242.1
245.1
247.8
251.2
249.3
251.1
252.5
254.2
252.4
254.3
255.8
257.7
254.3
255.8
259.0
SHC
MBH
SHC
MBH
SHC
MBH
138.3
168.8
197.9
228.5
144.5
175.3
207.5
238.1
146.9
180.2
214.0
247.8
150.2
185.1
220.4
255.8
260.7
263.9
267.2
258.7
262.3
267.2
270.2
262.0
265.5
268.6
271.9
265.5
269.8
273.0
95.4
127.9
154.5
180.2
97.2
130.8
158.0
183.1
99.0
132.0
160.7
189.8
100.6
133.4
162.7
202.6
207.5
217.3
231.7
205.2
214.0
226.9
239.7
212.4
217.3
233.4
246.2
217.3
225.2
239.7
165.6
197.9
210.7
224.8
175.3
205.5
217.8
230.1
185.1
210.7
226.3
238.8
193.1
218.5
232.5
SHC
MBH
SHC
MBH
226.9
230.1
233.4
238.1
236.4
240.0
241.3
242.9
244.6
246.4
248.0
249.3
245.4
248.6
250.7
132.0
162.5
193.1
223.6
137.5
170.5
202.8
236.4
142.8
175.5
212.4
246.2
146.7
183.5
220.4
249.4
252.5
255.6
259.0
251.2
254.0
257.9
262.3
253.5
256.8
260.0
261.6
258.4
263.3
266.5
91.2
123.0
151.6
178.6
93.1
127.2
155.7
185.1
94.9
129.4
159.4
189.8
96.7
131.5
162.5
SHC
MBH
SHC
MBH
188.5
193.4
203.1
219.4
195.0
199.9
216.1
225.9
198.3
206.4
224.3
238.9
203.1
214.5
230.8
158.0
187.6
197.0
212.8
169.0
193.9
209.6
219.1
178.8
200.2
217.5
231.7
185.1
208.1
223.8
216.1
219.4
224.3
225.9
217.8
222.6
229.1
232.4
229.1
232.4
235.6
238.9
234.0
237.3
240.5
125.0
156.0
186.7
218.9
144.0
164.1
197.9
209.1
135.5
172.1
207.5
238.9
140.4
178.6
217.3
SHC
MBH
245.4
247.0
248.6
250.3
248.6
250.3
251.9
255.1
251.9
253.5
255.1
256.8
253.5
255.1
256.8
86.6
117.8
147.6
175.5
88.6
122.0
152.6
183.5
90.2
125.9
156.7
188.2
92.0
127.6
160.6
172.3
178.8
195.0
211.3
177.1
186.9
203.1
219.4
182.0
193.4
211.3
227.5
186.9
199.9
217.8
SHC
MBH
SHC
MBH
SHC
151.3
173.4
189.2
204.9
160.7
181.3
197.0
212.8
169.0
187.6
204.9
220.7
180.9
193.9
211.2
203.1
206.4
208.0
211.3
204.8
209.6
212.9
216.1
216.1
219.4
224.3
227.5
221.0
224.3
227.5
130.0
149.8
180.4
211.3
136.5
158.4
191.8
216.1
143.0
165.8
199.9
227.5
134.6
173.9
212.9
229.1
232.4
235.6
237.3
235.6
238.9
240.5
242.1
240.5
242.1
243.8
245.4
242.1
243.8
245.4
82.1
113.1
143.8
173.9
83.9
118.6
149.5
180.4
87.8
121.9
156.0
190.1
87.8
126.8
159.3
MBH
SHC
MBH
SHC
MBH
SHC
162.5
168.6
184.0
199.3
167.1
176.3
191.6
207.0
171.6
182.4
199.3
214.6
176.3
188.6
205.4
147.2
163.6
178.4
193.3
151.6
171.0
185.9
200.7
159.4
177.0
193.3
208.2
170.3
182.9
199.3
191.6
194.7
196.2
210.3
193.2
197.8
200.8
203.9
203.9
207.0
211.6
214.6
208.5
211.6
214.6
122.6
141.3
170.2
189.3
128.8
149.5
180.9
199.8
134.9
156.4
188.6
210.3
126.9
164.0
200.8
216.2
219.2
222.3
223.8
222.3
225.4
226.9
228.4
226.9
228.4
230.0
231.5
228.4
230.0
231.5
77.4
106.7
135.7
164.0
79.1
111.9
141.0
170.2
82.8
115.0
147.2
179.4
82.8
119.6
150.2
Notes: 1.All capacities are gross and have not considered indoor fan heat.To obtain NET cooling capacity
subtract indoor fan heat.
2.MBH=Total Gross Capacity.(Unit:1000Btu/h)
3.SHC=Sensible Heat Capacity.(Unit:1000Btu/h)
I&O manual
29
Cooling capacity — 25 Tons
Tab.7-30
85
95
105
115
125
Air
Ent
61
67
73
61
67
73
61
67
73
61
67
73
61
67
73
Flow
DB
CFM 9500
(F) 75 80 85
MBH 277 283 288
SHC
MBH
SHC
MBH
SHC
MBH
242
309
183
320
119
257
247
315
230
326
172
262
252
321
276
333
209
267
241
226
281
216
316
236
290
225
323
164
SHC
MBH
232
284
SHC 177
MBH 317
SHC
MBH
116
236
SHC 222
MBH 276
SHC 169
MBH 310
SHC 111
MBH 216
SHC
MBH
212
253
SHC 159
MBH 298
SHC
MBH 196
SHC
106
192
MBH 230
SHC
MBH
144
271
SHC 96
235
189
276
139
246
230
287
265
322
241
296
269
330
204
232
282
175
304
153
200
196
158
220
216
258
208
310
193
204
200
240
198
224
220
263
255
9 0
294
257
327
312
339
248
273
246
302
309
336
245
251
235
293
289
328
234
229
224
269
260
316
222
208
204
244
237
287
202
10000
289
186
318
118
245
189
321
121
265
248
75 80 85 90
285 290 296 302
258
312
263
318
268
324
274
331
321 241
327
175
270
253
295
334
216
275
258
340
267
281
263
312 300
237
324
167
249
306
285
331
211
254
238
282
178
312
113
223
216
258
168
300
107
203
196
235
153
273
98
243
288
230
318
164
227
220
263
221
306
160
207
200
239
200
278
146
248
294
280
324
203
232
224
268
263
312
196
211
204
244
239
284
178
305
337
262
259
253
300
295
331
259
237
229
274
269
319
253
215
208
249
244
290
230
Notes: 1.All capacities are gross and have not considered indoor fan heat.To obtain NET cooling capacity
subtract indoor fan heat.
2.MBH=Total Gross Capacity. (Unit:1000Btu/h)
3.SHC=Sensible Heat Capacity. (Unit:1000Btu/h)
303
111
218
214
116
240
236
271
185
246
168
275
101
259
253
291
195
315
271
308
201
320
121
7 5
297
287
316
224
325
124
278
276
320
248
223
218
257
245
239
280
255
251
291
226
265
248
304
292
332
280
323
321
339
2626
9 0
309
290
333
326
341
271
289
226
281
153
309
168
222
219
251
174
244
240
276
249
264
258
297
297
321
277
314
261
327
182
269
331
189
283
8 0
302
292
322
11000
8 5
308
298
329
320
289
333
220
299
338
236
289
282
251
286
185
315
203
227
223
256
211
249
245
281
276
269
263
302
280
327
287
186
313
114
194
320
119
250
234
322
123
272
264
305
7 5
291
273
314
198
109
210
205
240
161
231
226
264
177
302
275
99
160
214
209
245
214
280
145
248
326
169
254
238
328
180
278
269
311
8 0
297
278
321
253
10500
8 5
303
284
327
291
281
332
220
334
231
283
274
317
326
210
240
235
275
260
243
298
276
230
269
235
308
292
246
319
164
235
250
244
286
184
268
314
203
218
213
321
149
231
227
261
254
250
287
281
256
292
227
268
309
291
334
256
317
295
340
267
275
328
344
278
295
288
9 0
315
304
335
I&O manual
30
8. START-UP
Packging and components
● Is the unit properly located and level with the proper clearance?
● Is the duct work correctly sized, run, taped, insulated, and weatherproofed with proper unit arrangement? See Ductwork
Installation section.
● Is the wiring properly sized and run according to the unit wiring diagram?
● Are all the wiring connections, including those in the unit, tight?
● Has the unit been properly grounded and fused with the recommended fuse size? See Wiring Data.
● Have the air conditioning systems been checked at the service ports for charge and leak tested if necessary?
● Does the condenser fan and indoor blower turn free without rubbing, and are they tight on the shafts?
● Has the indoor blower speed been determined and the proper speed been set? See the Unit Wiring Diagram.
● Are all covers and access panels in place to prevent air loss and safety hazards?
Starting the unit in the cooling mode
Voltage
With the compressor operating, check the line voltage at the unit. The voltage should be within the range shown on the unit nameplate.
If low voltage is encountered, check the size and length of the supply line from the main disconnect to the unit. The line may be undersized for the length of the run.
Cooling shut down
Place the system selector in the OFF position or reset thermostat at a setting above room temperature.
Do not de-energize the main power disconnect except when unit is to be serviced. Power is required to keep the heat pump compressor warm and boil off refrigerant in the compressor.
9. MAINTENANCE AND UPKEEP
Regular maintenance and upkeep
Some regular maintenance and upkeep have been carry on by user, includes: change the one-time dust filter, clean casing, wash condenser and replace a new belt, as well as do some test for the equipment.
A
Control box access panel
Tab.9-1
Range
(Ton)
6/7
8/10
12/15
18/20
25
Control electric heater box access panel
Control box
For 6-20 tons
A
(mm)
328
395
555
525
695
For 25 tons
Fig.9-1
Control electric heater box
Warning
Electric heater
Fig.9-2
WARNING
At least 1m flame resistant layer must be laid at the end of the air duct internal surface.
I&O manual
31
Regulating belt of rate of tension, inner fan
Refer to Fig.9-3, Fixed bolt of electric motor’s supporting slide was loosened, following electric motor was drived, belt of rate of tension will begin change.
For 6-20 tons filter-Baffle-plate plate bolts
Fig.9-3
Method of belt tensioning using belt tension indicator
Calculate the deflection in mm on a basis of 16mm per meter of center distance .Center distance (m)×16=deflection (mm).
Center distan ce span e of
For 25 tons filter-Baffle-plate air filter
Fig.9-4
Tab.9-2
Belt section
SPA
SPB
For reguired to deflection belt 16 mm per metre of span
Small pulley diameter (mm)
80 to132
140 to 224
Newton(N)
25 to 35
45 to 65
Kilogram-force(kgf)
2.5 to 3.6
4.6 to 6.6
NOTE
The belt which is too tight or too loose may generate noise and be harmful to the unit. air filter
Fig.9-5 filter access door
Fig.9-6
●
●
Dismantle the air filter.
Twist of screws and up the plate that is gets out.
Upon loose the filter-baffle-plate, the filter could be pulled out along the supporting slot.
I&O manual
32
●
●
Clean the air filter (Vacuum cleaner or pure water may be used to clean the air filter. If the dust accumulation is too heavy , please use soft brush and mild detergent to clean it and dry out in cool place) .
Fig.9-7
The air-in side should face up when using vacuum cleaner.
The air-in side should face down when using water.
●
●
●
●
●
●
●
●
●
● Re-install the air filter
Condenser coil
Unfiltered air circulates through the unit's condenser coil and can cause the coil's surface to become clogged with dust, dirt, etc. To clean the coil, vertically (i.e., with the fins) stroke the coil surface with a soft-bristled brush. Be sure to keep all vegetation away from the condenser coil area.
Maintenance performed by serviceman.
To keep your unit operating safely and efficiently, the manufacturer recommends that a qualified serviceman check the entire system at least once each year and any other time that you feel one is needed. Your serviceman should examine these areas of your unit:
Filters
Motors and drive system components
Economizer gaskets (for possible replacement)
Safety controls (for mechanical cleaning)
Electrical components and wiring (for possible replacement and connection tightness)
Condensate drain (for cleaning)
Unit duct connections (to see that they are physically sound and sealed to the unit casing)
Unit mounting support (for structural integrity)
The unit (for obvious unit deterioration)
CAUTION
Do not dry out the air filter under direct sunshine or with fire.
CAUTION
Do not operate the unit without the evaporator fan access panel in place. Reinstall the access panel after performing any maintenance. Operating the unit without the access panel may result in severe personal injury or death.
I&O manual
33
Contact SAMSUNG WORLD WIDE
If you have any comments or questions regarding a Samsung product, contact the SAMSUNG customer care center.
Country
TURKEY
SOUTH AFRICA
U.A.E
BAHRAIN
JORDAN
EGYPT
KSA
QATAR
SYRIA
Customer Care Center
444 77 11
0860-SAMSUNG(726-7864 )
800-SAMSUNG (726-7864)
8000-4726
800-22273
0800-726786
9200-21230
800-2255
1825-22-73
C Samsung Electronics Co., Ltd. All Rights Reserved.
Web Site
www.samsung.com
www.samsung.com
www.samsung.com
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www.samsung.com
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