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OWNER’S AND INSTALLATION
MANUAL
INDUSTRIAL
ROOFTOP
HTW-MRBT075HWN1R | HTW-MRBT100HWN1R
HTW-MRBT125HWN1R | HTW-MRBT175HWN1R
HTW-MRBT200HWN1R | HTW-MRCT300HWN1R
Thanks for choossing our product.
Please, read carefully this manual before using the product
CONTENTS PAGE
ACCESSORIES.........................................................................................1
GENNERAL INFORMATION........................................................................1
DIMENSIONAL DATA...............................................................................2
LOCATIONS AND RECOMMENDATIONS.................................................16
INSTALLATION ........................................................................................16
ELECTRICAL WIRING .............................................................................19
SPECIFICATION .......................................................................................28
START-UP ..............................................................................................67
MAINTENANCE AND UPKEEP ..................................................................67
Model Number Nomenclature
CODE
C/O
E/Heater+C/O
Hor.& Dow.
Hor.
Dow.
H/P
NAME
Cooling Only
Electric Heater and Cooling
Horizontal & Downflow Units (Optional)
Horizontal Units
Downflow Units
Heat Pump
1. ACCESSORIES
Tab.1-1
Name of accessories Qty Shape
Manual
Drain outlet
Snap ring
Drain pipe
KJR-12B Wire controller
1
1
1
1
1
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.
This appliance is not intended for use by persons
(including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
I&O manual
1
3. DIMENSIONAL DATA
380-400V 3N ̚ 50Hz , 220V 3N ̚ 60Hz
6.2
ǃ 7.5 Tons H/P Units ( Hor. & Dow.)
1058
1620
Condenser fan
1068
Filter access door
534
Drain connection hole maintain orifice for air supply motor
1630 550
780
457.5
1065
Hole for control wires
Hole for power wires
Control and comperssor access panel
Units: mm
Fig.3-1
905
350
Horizontal supply opening
Downflow supply opening
Horizontal return opening
Downflow return opening
313
278
193
16
101
Fresh air
Hole for bottom installation
Fig.3-2
Fig.3-3
I&O manual
2
380-400V 3N ̚ 50Hz , 220V 3N ̚ 60Hz
6.2
ǃ 7.5 Tons C/O Units ( Hor. & Dow.)
6.2
ǃ 7.5 Tons E/Heater+C/O Units ( Hor. )
Units: mm
1058
1620
Condenser fan
1068
Filter access door
534
Drain connection hole maintain orifice for air supply motor
1630 550
780
457.5
1065
Hole for control wires
Hole for power wires
Control and comperssor access panel
Fig.3-4
Control electric heater box access panel
Horizontal supply opening
Hole for electric heater power wires
Horizontal return opening
905
350
313
278
193
16
101
Fresh air
Hole for bottom installation
Fig.3-5
I&O manual
3
380-400V 3N ̚ 50Hz , 220V 3N ̚ 60Hz
8.5
ǃ 10 Tons C/O Units ( Hor. & Dow.)
8.5
ǃ 10 Tons H/P Units ( Hor. & Dow.)
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
Units: mm
Fig.3-6
I&O manual
4
Horizontal supply opening
Downflow supply opening
Horizontal return opening
485
Downflow return opening
83 368 344 410
628
290
822
406
60
103
Fresh air
Hole for bottom installation
Fig.3-7
8-19X14
Return
Supply
805
2165
804 350 103
Fig.3-8
380-400V 3N ̚ 50Hz , 220V 3N ̚ 60Hz
8.5
ǃ 10 Tons E/Heater+C/O Units ( Hor.)
1323
Units: mm
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.3-9
Control electric heater box access panel
Hole for electric heater power wires
Horizontal supply opening
Horizontal return opening
485
628
290
822
406
60
103
Fresh air
Hole for bottom installation
Fig.3-10
83 368 344 410
8-19X14
Return
Supply
805
2165
804 350 103
Fig.3-11
I&O manual
5
380-415V 3N ̚ 50Hz , 220V 3N ̚ 60Hz
12.5 Tons H/P Units ( Hor. & Dow.)
2214
1388
1245
Filter occess door 135
Drain connection hole
Maintain orifice for air supply motor
774
2229
800
400
863
Control and comperssor access panel
Hole for control wires
Hole for power wires
Hole for other purpose
115
126
1400
13
1
Units: mm
Fig.3-12
I&O manual
6
1029
500
Control electric heater box access panel
577
Horizontal supply opening
Horizontal return opening
313
360
55
143
Fresh air
81 306 374 494 Hole for bottom installation
14-15×25
Fig.3-13
1980
2164
2229
30
115
Fig.3-14
380-415V 3N ̚ 50Hz , 220V 3N ̚ 60Hz
12.5 Tons C/O Units ( Hor. & Dow.)
12.5 Tons E/Heater+C/O Units ( Hor.)
2214
1388
1245
Filter occess door 135
Drain connection hole
Maintain orifice for air supply motor
774
2229
800
400
863
Control and comperssor access panel
Hole for control wires
Hole for power wires
Hole for other purpose
115
12
6
1400
131
Units: mm
Fig.3-15
1029
500
Control electric heater box access panel
Hole for electric heater power wires
Horizontal supply opening
577
Horizontal return opening
313
360
55
143
Fresh air
81 306 374 494
Hole for bottom installation
14-15×25
Fig.3-16
1980
2164
2229
30
115
Fig.3-17
I&O manual
7
380-400V 3N ̚ 50Hz, 220V 3N ̚ 60Hz
15 Tons C/O Units ( Hor. & Dow.)
15 Tons H/P Units ( Hor. & Dow.)
1813
2214
17
13
5
Filter occess door
Drain connection hole
Maintain orifice for air supply motor 774
9
800
Control and comperssor access panel
863
400
Hole for control wires
Hole for power wires
Hole for other purpose
11
5
12
6
1825
1245
131
Units: mm
Fig.3-18
234
506
Horizontal supply opening
577
Downfolw supply opening
Horizontal return opening
313
Downfolw ruturn opening
360
55
185
1029
143
544
804
Fresh air
81 306 374 494 Hole for bottom installation
14-15×25
Fig.3-19
1980
2164
2229
30
115
Fig.3-20
I&O manual
8
380-400V 3N ̚ 50Hz, 220V 3N ̚ 60Hz
15 Tons E/Heater+C/O Units ( Hor. )
1813
2214
17
135
Filter occess door
Drain connection hole
Maintain orifice for air supply motor
800
Control and comperssor access panel
863
400
Hole for control wires
Hole for power wires
Hole for other purpose
11
5
126
1825
1245
13
1
Units: mm
Fig.3-21
234
506
Control electric heater box access panel
Horizontal supply opening
577
Hole for electric heater power wires
Horizontal return opening
313
360
185
1029
55
143
544
804
Fresh air
81 306 374 494 Hole for bottom installation
14-15×25
Fig.3-22
1980
2164
2229
30
115
Fig.3-23
I&O manual
9
380-400V 3N ̚ 50Hz, 220V 3N ̚ 60Hz
17.5 Tons C/O Units ( Hor. & Dow.)
17.5 Tons H/P Units ( Hor. & Dow.)
1813
2214
17
13
5
Filter occess door
Drain connection hole
Maintain orifice for air supply motor 800
Control and comperssor access panel
Hole for control wires
86
3 400
Hole for power wires
Hole for other purpose
11
5
126
1825
1245
131
Fig.3-24
Units: mm
234
506
Horizontal supply opening
577
Downfolw supply opening
Horizontal return opening
313
Downfolw ruturn opening
360
55
185
1029
143
544
804
Fresh air
81 306 374 494 Hole for bottom installation
14-15×25
Fig.3-25
1980
2164
2229
30
115
Fig.3-26
I&O manual
10
380-400V 3N ̚ 50Hz, 220V 3N ̚ 60Hz
17.5 Tons E/Heater+C/O Units ( Hor. )
1813
2214
17
135
Filter occess door
Drain connection hole
Maintain orifice for air supply motor 774 800
2229
Control and comperssor access panel
863
Hole for control wires
400
Hole for power wires
Hole for other purpose
11
5
12
6
1825
1245
131
Units: mm
Fig.3-27
234
506
Control electric heater box access panel
Horizontal supply opening
577
Hole for electric heater power wires
Horizontal return opening
313
360
185
1029
55
143
544
804
Fresh air
81
306 374 494 Hole for bottom installation
14-15×25
Fig.3-28
1980
2164
2229
30
115
Fig.3-29
I&O manual
11
380-400V 3N ̚ 50Hz, 220V 3N ̚ 60Hz
20 Tons C/O Units ( Hor. & Dow.)
20 Tons H/P Units ( Hor. & Dow.)
2138
2748
17
1245
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
1241
1053
Hole for other purpose
135
14
2
467
870 2157
142
Fig.3-30
Units: mm
I&O manual
12
294
880
Horizontal supply opening
673
Downflow supply opening
Horizontal return opening
Downflow return opening
315
599
203
1031
55
143
644
703
Fresh air
104 550 390 530
Hole for bottom installation
14-15×25
Fig.3-31
1241
2693
2753
1259 117
30
Fig.3-32
380-400V 3N ̚ 50Hz, 220V 3N ̚ 60Hz
20 Tons E/Heater+C/O Units ( Hor. )
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
1241
1053
Hole for control wires
Hole for power wires
Hole for other purpose
13
5 142
467
870
2157
142
1245
Fig.3-33
880
Control electric heater box access panel
Horizontal supply opening
673
Hole for electric heater power wires
Horizontal return opening
315
599
203
1031
55
143
644
703
294
Fresh air
104 550 390 530
Hole for bottom installation
14-15×25
Fig.3-34
1241
2693
2753
1259
117
30
Fig.3-35
I&O manual
13
380-400V 3N ̚ 50Hz
30 Tons C/O Units ( Hor.)
30 Tons H/P Units ( Hor.)
30 Tons E/Heater+C/O Units ( Hor. )
18
142
Drain connection hole
839
Maintain orifice for air supply motor
275
3
Control and comperssor access panel
917
Hole for control wires
Hole for power wires
Hole for other purpose
997
135
14
2 820
870
2157
142
1656
Fig.3-36
Units: mm
I&O manual
14
294
888
Control electric heater box access panel
Hole for electric heater power wires
Horizontal supply opening
652
Horizontal return opening
266
120
1512
120
870
522
55
144
Fresh air
Filter access door
Fig.3-37
Hole for bottom installation
16-15×20
862 917
2693
2753
730 135
Fig.3-38
380-400V 3N ̚ 50Hz
30 Tons C/O Units ( Hor.)
30 Tons H/P Units ( Hor.)
30 Tons E/Heater+C/O Units ( Hor. )
Units: mm
When it is needed, the filter should be taken away for cleaning as this direction shown in the picture.
New installing unit can skip this operation.
ĕ
Four screws must be taken away from the inner protective plate before installation and operation.
Fig.3-39
I&O manual
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).
Units: mm
≥ 1000
≥ 1000
Overhead air
Clearance≥ 3000
≥ 1000
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 ǃ 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. INSTALLATION
5.1 Lifting
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.
I&O manual
16
C./ Industria, 13 l Polígono Industrial El Pedregar
08160 Montmeló
Barcelona (Spain)
Phone: 93 390 42 20
Fax: 93 390 42 05 [email protected]

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