Cooper & Hunter CH-IRT05NM, CH-IRT08NM Owner's Manual
Cooper & Hunter CH-IRT05NM is a rooftop packaged unit designed for residential and light commercial applications. It offers efficient cooling and heating performance, with a nominal cooling capacity of 5 tons and a heating capacity of 5.1 kW. The unit is equipped with a durable, anti-rust cabinet and a compact design, making it suitable for various installation scenarios. It operates within a wide temperature range, ensuring reliable performance in different climate conditions. The CH-IRT05NM comes pre-assembled and wired, allowing for easy and quick installation.
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ROOFTOP PACKAGE
UN IT
S
Owner`s manual
R ooftop package units
Models:
C
H
-I
RT
05N
M
C
H
-I
RT
08N
M
C
H
-I
RT
15N
M
Thank you for choosing Cooper&Hunter rooftop package units, please read this s ervice manual carefully before operation and retain it for future reference.
Preface
Please carefully read this manual before installation and operation. Instructions before reading this manual :
(1) For guaranteeing personal safety when operating this system, please strictly follow the instructions listed in the manual.
(2) Make sure that this manual is kept by operators and serviceman.
(3) Please contact Cooper&Hunter immediately when the unit can not run normally.
1) Information on the nameplate (including model, cooling capacity, product number and delivery date).
2) Malfunction (Describe the actual condition before and after the error happens in details).
(4) Every unit has passed through strictly test and trial run before delivery. In the event of damage to the unit due to improper disassembly, user is not allowed to dismantle and check the unit by themselves. Please contact local dealer, then C &H professional serviceman will help to check the unit.
(5) All the information and illustrations shown in this manual are all for reference.
Manufacturer reserves the rights of making necessary change at anytime without advance notice owing to design improvement or other reasons.
Contents
1 Safety Precautions ........................................................................... 1
2 Product Introduction ......................................................................... 3
2.1 Nominal Operating Condition .................................................................. 3
3 Pre-installation Instruction ................................................................ 4
3.1 Checking Product Received .................................................................... 4
4 Installation Instructions ..................................................................... 6
4.5 Installation Positions and Clearances ..................................................... 9
4.6 Installation of Condensate Pipe ............................................................ 11
5 Electrical Installation ....................................................................... 12
5.1 Electrical Date and Wire Sizing ............................................................. 12
5.2 Connect Wiring to the Terminals ........................................................... 12
5.3 Electrical Connections-Supply Voltage ................................................. 14
7 Troubleshooting .............................................................................. 16
8.1 Setting of Double Indoor Room Sensors .............................................. 17
8.2 Checking of Outdoor Ambient Temperature .......................................... 17
9 Error Code Meaning ....................................................................... 17
10 Maintenance ................................................................................. 19
Rooftop Packaged
1 Safety Precautions
The following symbols and labels are used throughout this manual to indicate immediate or potential hazards. It is the owner’s responsibility to read and comply with all safety information and instructions accompanying these symbols. Failure to heed safety information increases the risk of serious personal injury or death, property damage and/or product damage.
Warning:
A symbol indicating that improper operation might cause human death or severe injuries.
Caution:
A symbol indicating that improper operation might cause human injury or property damage.
Warning:
①.
This unit shall be used in offices, restaurants, residences or similar places.
②.
Please seek an authorized repair station for installation work. Improper installation might cause water leakage, electric shock or fire.
③.
Please install at a place strong enough to support the weight of air conditioner unit. If not, the air conditioner unit might fall down and cause human injury or death.
④.
To ensure proper drainage, the drainage pipe shall be correctly installed according to installation instructions. Improper installation of pipes might cause leakage.
⑤.
Keep air flow to avoid shortage of oxygen in the room.
⑥.
Do not use or store flammable, explosive, poisonous or other dangerous substances beside the air conditioner.
⑦.
In case of trouble (e.g. burnt smell), please immediately cut off the main power of air conditioner unit.
⑧.
The NULL LINE of power input MUST be connect to the “N” section of the terminal board! A WRONG CONNECTION will cause the DAMAGE of unit!
⑨.
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
1
Rooftop Packaged safety.Children should be supervised to ensure that they do not play with the appliance.
⑩.
If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.
Caution:
①.
Before installation, please check the power supply for compliance with the ratings on nameplate. Check the power safety as well.
②.
Before use, please check and confirm if the drainage pipes and cables are correctly connected, hence to eliminate the risk of water leakage, electric shock or fire.
③.
Main power must be securely earthed to ensure effective grounding of air conditioner unit and avoid the risk of electric shock. Please do not connect the earthing cable to coal gas pipe, water pipe, lightning rod or telephone line.
④.
Once started, the air conditioner shall not be stopped at least after 5 minutes or longer; otherwise the oil return to compressor may be affected.
⑤.
Do not let the child to operate the air conditioner unit.
⑥.
Do not operate the air conditioner unit with wet hands.
⑦.
Please disconnect the main power before cleaning the air conditioner or replacing the air filter.
⑧.
Please disconnect the main power if to put the air conditioner unit out of use for a long period.
⑨.
Please do not expose the air conditioner unit directly under corrosive environment with water or moisture.
⑩.
Please do not foot on or place any goods on air conditioner unit.
⑪ .
After electrical installation, the air conditioner unit shall be energized for electrical leakage test.
⑫ .
An all-pole disconnection switch having a contact separation of at least
3mm in all poles should be connected in fixed wiring.
⑬ .
The appliance shall be installed in accordance with national wiring regulations.
⑭ .
The temperature of refrigerant circuit will be high, please keep the interconnection cable away from the copper tube.
2
Rooftop Packaged
2 Product Introduction
C OOPER&HUNTER rooftop packaged units provide a wide capacity range from 5 to 15 Ton. These units are completely assembled, piped and wired at the factory to provide one-piece shipment and rigging. Each unit is pressurized with a holding charge of Refrigerant-410a for storage and shipping.
The compact design, attractive appearance, outstanding anti-rust cabinet and quiet operation make these units suitable for almost any manufactured or modular homes.
2.1 Nominal Operating Condition
Item
Cooling
Heating
Outdoor Conditon
DB
Temperatrue(°C)
35
7
WB
Temperatrue(°C)
24
6
Indoor Condition
DB
Temperatrue(°C)
27
20
WB
Temperatrue(°C)
19
15
2.2 Operating Range
C H -I RT 05N M
Item
Cooling
Heating
Outdoor Condition (DB °C)
-5~52
-15~24
Item
Cooling
Heating
C H -I RT 08N M
Outdoor Condition (DB °C)
5~52
-15~24
Item
Cooling
Heating
C H -I RT 15N M
Outdoor Condition (DB °C)
5~52
10~24
3
Rooftop Packaged
3 Pre-installation Instruction
3.1 Checking Product Received
Upon receiving the product, check any damage from transportation. Shipping damage is the responsibility of the carrier. Verify the model number, specifications and accessories are correct prior to installation. The distributor or manufacturer will not accept claims from dealers for transportation damage or installation of incorrectly shipped units.
3.2 Standard Accessory Parts
The standard accessory parts listed below are furnished and should be used as required.
No. Name Appearance Q'ty Usage
1 Wired Controller 1 To control the unit
2 Screw 2
To fix the base plate of wired controller and installation hole of the wall together
4
Rooftop Packaged
3.3 Before Beginning Installation
Carefully read all instructions for the installation prior to installing product. Make sure each step or procedure is understood and any special considerations are taken into account before starting installation. Assemble all tools, hardware and supplies needed to complete the installation. Some items may need to be purchased locally.
Make sure everything needed to install the product is on hand before starting.
3.4 Codes & Regulations
This product is designed and manufactured to comply with national codes. It is installer’s responsibilities to install the product in accordance with such codes and/or any prevailing local codes/regulations. The manufacturer assumes no responsibilities for equipment installed in violation of any codes or regulations.
3.5 Replacement Parts
When reporting shortages or damages, or ordering repair parts, give the complete product model and serial numbers as stamped on the product.
Replacement parts for this product are available through your contractor or local distributor.
5
4 Installation Instructions
4.1 Physical Dimension
Rooftop Packaged
C H -I RT 05N M
K L M
B C
C H -I RT 08N M
G H
6
Rooftop Packaged
C H -I RT 15N M
Dimension
(mm)
5Ton
8Ton
15Ton
A B C D E F G H I J K L M
815 1750 1100 80 133 408 61 904 50 145 125 795 169
1225 2210 1450 75 134 670 100 1112 84 198 211 868 361
1245 2810 2240 90 144 592 43 1872 177 211 168 1900 168
Note: Above diagrams may be different from actual mode
4.2 General Information
Nominal
Capacity
Ton
5
8
15
Model
Refrigeran t
R410A
Model Name
C H -I RT 05N M
R410A
R410A
C H -I RT 08N M
C H -I RT 15N M
Power Supply
Function
Heat Pump
Heat Pump
Heat Pump
Climate type
T3
T3
T3
V, Ph, Hz
380-415V, 3Ph,
50/60Hz
380-415V, 3Ph,
50/60Hz
380-415V, 3Ph,
50/60Hz
Note: 1Ton =12000Btu/h = 3.517kW
7
Rooftop Packaged
4.3 Location
To ensure the unit in proper function, selection of installation location must be in accordance with following principles.
(1) Unit shall be installed so that the air discharged by outdoor fan will not return and that sufficient space for repair shall be provided around the unit.
(2) The installation site must have good ventilation, so that the unit can take in and exhaust enough air.
(3) Place of installation shall be strong enough to support the weight of unit, and it shall be able to insulate noise and prevent vibration. Ensure that the wind and noise from the unit will not affect your neighbors.
(4) Avoid direct sunshine over the unit. It is better to set up a sun shield as the protection.
(5) Place of installation must be able to drain the rainwater and defrosting water.
(6) Place of installation must ensure the unit will not subject to the influence of rubbish or oil fog.
(7) The installation site must be at a place where the air exhaust outlet does not face strong wind.
(8) Unit must be fixed on stable and solid surface of floor.
4.4 Crane Way
(1) When removing the unit, two ropes are needed to hang the unit along the four ways.
(2) In order to avoid the extrusion, between the ropes should be add something to protect the unit (e.g. batten).
(3) Please use M12 to tight the support fundus.
8
Rooftop Packaged
4.5 Installation Positions and Clearances
Note: Above diagrams may be different from actual model.
C H -I RT 05N M
Installation Clearances
DIMENSION
(Minimum)
A mm
600 inch
24
B
C
D
E
1100
860
1100
1100
43
34
43
43
9
C H -I RT 08N M
Note: Above diagrams may be different from actual model.
C H -I RT 15N M
Note: Above diagrams may be different from actual model.
10
Rooftop Packaged
Rooftop Packaged
C H -I RT 08N M C H -I RT 15N M
Installation Clearances
DIMENSION
(Minimum)
A mm
1000 inch
39
B
C
D
E
1500
1100
1100
1830
59
43
43
72
4.6 Installation of Condensate Pipe
After the unit is installed, it is required to check the level of the whole unit. The unit must be placed horizontally to ensure the unit in proper function.
(1) When shipped out from factory, both the condensate outlets are blocked by rubber plug. So before installation, please take the rubber plug out.
(2) Condensate removal is performed by attaching a PVC pipe to the drain pan and terminated in accordance with local or state Plumbing/HVAC codes.
(3) The condensate pipe shall be installed with an inclining angel of 5~10°, so as to facilitate the drainage of condensate.
(4) As the inside of the unit is in the negative pressure status, it is required to set up a backwater elbow. The requirements is: A=B ≥ P/10+20(mm)
P is the absolute pressure inside the unit. The unit of the pressure is Pa.
(5) After the electrical installation is completed, carry out the testing of the drainage system.
11
Rooftop Packaged
Model(Ton) Drain Connection Size(inch)
05
08
15
5 Electrical Installation
3/4"(NPT)
3/4"(NPT)
3/4"(NPT)
5.1 Electrical Date and Wire Sizing
Unit Model
Designation
C H -I RT 05N M
C H -I RT 08N M
C H -I RT 15N M
Power Supply
(V, Ph, Hz)
380-415V,3Ph,50/60Hz
380-415V,3Ph,50/60Hz
380-415V,3Ph,50/60Hz
Capability of
Air Switch(A)
25A
32A
50A
Min. Sectional
Area of Earth
Wire(mm
2
)
4.0
6.0
10.0
Min. Sectional
Area of Power
Cord(mm
2
)
4.0
6.0
10.0
5.2 Connect Wiring to the Terminals
Caution:
Please note the following items before installing the electric appliance.
①.
Check if the power supply accords with its value on the nameplate.
②.
The capacity of the power supply must be large enough.
③.
The circuit should be installed by the professional technician.
④.
In fixed circuit, there must be electricity leakage protection switch of enough power capacity and air switch with space between its electrode contacts ≥ 3mm.
⑤.
Single wire connection. a) Peel off the insulation for 25mm with pliers. b) Remove the screw from the terminal board. c) Bend the peeled wire into circle with pliers. d) Screw cross the circle and fix it on the terminal board.
⑥.
Strand wires connection. a) Peel off the insulation for 10mm with pliers. b) Remove the screw from the terminal board.
12
Rooftop Packaged c) Clamp a round terminal of the peeled wires. d) Screw cross the circle and fix it on the terminal board.
Warning:
If the power line or the signal line is defective, use the special coil to replace it.
①.
Before connecting lines, read the voltages of the relevant parts on the nameplate. Then carry out line connection according to the schematic diagram.
②.
The air-conditioning unit shall have special power supply line which shall be equipped with electricity leakage switch and air switch, so as to deal with overload conditions.
③.
The air-conditioning unit must have grounding to avoid hazard owing to insulation failure.
④.
All fitting lines must use crimp terminals or single wire. If multiple twisted wires are connected to terminal board, arc may arise.
⑤.
All line connections must conform to the schematic diagram of lines.
Wrong connection may cause abnormal operation or damage of the air-conditioning unit.
⑥.
Do not let any cable contact the refrigerant pipe, the compressor and moving parts such as fan.
⑦.
Do not change the internal line connections inside the air-conditioning unit.
The manufacturer shall not be liable for any loss or abnormal operation arising from wrong line connections.
13
Rooftop Packaged
⑧.
If the supply cord is damaged, it must be replaced by the manufacturer or its service agent or a similarly qualified person in order to avoid a hazard.
⑨.
All of the supplied components, material, and electric operation should be accorded with the local principles.
⑩.
The null line of power input must be connected to the “N” section of the terminal board! A wrong connection willl cause the damage of unit!
5.3 Electrical Connections-Supply Voltage
(1) Air-conditioning unit with single-phase power supply
1) Remove the Electric Box Cover of the unit.
2) Pass the cable though rubber ring.
3) Connect the power supply cable to the “L1, L2” terminals and the grounding screw.
4) Use cable fastener to bundle and fix the cable.
(2) Air-conditioning unit with 3-phase power supply
1) Remove the Electric Box Cover of the unit.
2) Pass the cable though rubber ring.
3) Connect the power supply cable to terminals and the grounding screw according to wiring diagram.
4) Use cable fastener to bundle and fix the cable.
(3) Low Voltage Connections
Low voltage wiring is to be copper conductors. A minimum of 18AWG must be used for installations up to 50’ and 16AWG for installations over 50’.
1) Remove the Electric Box Cover of the unit.
2) Pass the signal cable of the wire controller though rubber ring.
3) Connect the signal cable to terminals according to wiring diagram.
4) Use cable fastener to bundle and fix the cable.
Caution:
Take great care when carrying out the following connections, so as to avoid malfunction of the air-conditioning unit because of electromagnetic interference.
①.
The signal line of the wire controller must be separated from the power
14
Rooftop Packaged line.
②.
In case the unit is installed in a place vulnerable by electromagnetic interference, it is better to use shielded cable or double-twisted cable as the signal line of the wire controller.
Warning:
The NULL LINE of power input MUST be connected to the “N” section of the terminal board!
A WRONG CONNECTION will cause the DAMAGE of unit!
5.4 Wiring Diagram
Breaker
①
POWER
380~415V
3PH
50 / 60Hz
L1
L2
L3
N
PE
L1
L2
L3
N
Wired Controller
1
2
PE
6 Trial Run
Switch on power supply and press the ON/OFF button to start operation.
15
Rooftop Packaged
7 Troubleshooting
If your air-conditioning unit suffers from abnormal operation or failure, please first check the following points before repair
Failure
The unit can not be stared.
Possible cause Solution
The power supply does not connect or improper phase sequence.
Connect the power supply or change two random phase.
Electrical leakage of air-conditioning unit causes tripping of leakage switch.
Contact the nearest service center.
The voltage is too low. Contact the dealer.
The control loop has failure.
Contact the nearest service center.
Air outlet port or intake port of the unit is blocked. Move the obstacles.
The unit operates for a while and then stops.
There is obstacle in front of the condenser.
The control loop is abnormal.
Move the obstacles.
Contact the nearest service center.
Clean air filter. Air filter is dirty.
Air outlet port or intake port of indoor unit or outdoor unit is blocked.
Move the obstacles.
Too many persons or a heat source in the Room.
If possible, clear heat sources.
Poor cooling effect.
Doors or windows are open. Close windows and doors.
Refrigerant leakage.
Some model unit has a High Pressure Switch which is welded on discharge pipe. When the switch goes into effect, the power supply of compressor will be shut off.
Contact the nearest service center.
Find and manual reset the
High Pressure. Switch which is welded on discharge pipe.
Note: After carrying out the check of the above items and taking relevant measures to solve the problems found but the air-conditioning unit still does not function well, please stop the operation of the unit immediately and contact the nearest service center. Only ask professional serviceman to check and repair the unit.
16
Rooftop Packaged
8 Unit Function
8.1 Setting of Double Indoor Room Sensors
This series of Rooftop Packaged Unit has two indoor room sensors. One is located at the air intake of the unit and the other one is located inside the wire controller.
User can select one from the two indoor room sensors on the basis of the engineering requirement.
(Refer to the section of wire controller instructions for detailed operation.)
8.2 Checking of Outdoor Ambient Temperature
The outdoor ambient temperature can be checked on the wire controller for the convenience of users before going out.
(Refer to the section of wire controller instructions for detailed operation.)
9 Error Code Meaning
Number Error code
1 E1
2 E2
3
4
9
10
11
12
5
6
7
8
13
14
15
16
E3
E4
E6
E8
F0
F1
F2
F3
F4
F5
C5
EE
PF
H3
Error
Compressor high pressure protection
Indoor anti-freeze protection
Compressor low pressure protection, refrigerant lack protection and refrigerant colleting mode
Compressor high discharge temperature protection
Communication error
Indoor fan motor error
Indoor ambient temperature sensor error
Evaporator temperature sensor error
Condenser temperature sensor error
Outdoor ambient temperature sensor error
Discharge temperature sensor error
Temperature sensor error of wired controller
Capacity code error
Outdoor memory chip error
Electric box sensor error
Compressor overload protection
17
Remarks
Rooftop Packaged
29
34
35
36
37
30
31
32
33
38
39
40
41
21
22
23
24
17
18
19
20
25
26
27
28
P6
Pc
Pd
PE
PL
P7
P8
P9
PA
PH
PU
PP ee
Lc
Ld
LE
LF
H4
H5
H6
H7
Lp
U7
P0
P5
Overloading
IPM protection
DC fan motor error
Drive desynchronizing protection
Activation failure
Compressor phase sequence protection
Compressor stalling protection
Power protection
Indoor and outdoor mismatch
4-way valve direction changing protection
Drive reset protection
Over-current protection
Communication error between main control and drive
Drive module sensor error
Drive module over temperature protection
Zero passage protection
AC current protection
Drive current error
Sensor connecting protection
Temperature drift protection
Bus low voltage protection
Bus high voltage protection
Charge loop error
Input voltage abnormality
Drive memory chip error
Remarks: If E1 and E3 shows by turns, it means overload protection.
Note: When the unit is connected with the wired controller, the error code will be simultaneously shown on it.
Number Error code
1 AL
2
3
AH
AA
4
5
A1
AF
Error
Fan DC busbar under voltage protection
Fan DC busbar over voltage protection
Fan AC current protection (input side)
Fan IPM module protection
Fan PFC abnormality
Remarks
18
Rooftop Packaged
10
11
12
6
7
8
9
13
14
15
16
17
18
19
20
AC
Ad
A0
UL
UP
AE
AJ
A6
A8
A9
An
AU
AP
Ar
U9
Fan startup failure
Fan Missing phase
Fan Drive module resetting
Fan current protection
Fan power protection
Fan Current sensor malfunction
The Fan motor in loss of synchronization
Malfunction from Fan driving part to main-control communication
Overheat protection of Fan radiator
Fan radiator sensor malfunction
Fan Drive Storage chip malfunction
Fan Charge circuit malfunction
Fan AC input voltage abnormality
Fan driver board environment temperature sensor malfunction
Fan AC contactor protection or input zero crossing error
Note: These error codes only show on “88” display of the main board.
Note: When the unit is connected with the wired controller, the error code will be H6 shown on it.
10 Maintenance
To protract the life of the air-conditioning unit, check and maintain the unit regularly with a qualified service person.
(1) Cleaning the Air Filter
1) Do not disassemble the air filter when cleaning it. Otherwise failure may be caused.
2) If the air-conditioning unit is used in an environment with much dust, you should clean the air filter frequently (once every two weeks).
(2) Cleaning the Outdoor Heat Exchanger
Outdoor heat exchanger must be cleaned regularly, at least once every two months. You can clean the surface with vacuum cleaner or nylon brush, please do not wash it with water.
(3) Maintenance at the Beginning of Operating Season
1) Check the air inlet and outlet of the units to confirm there is no blockage.
19
Rooftop Packaged
2) Check to see if the grounding wire is in good condition.
3) Check to see if the line connection is in good condition.
4) Check the drainage pipe so as to confirm the fluency flow of condensate.
(4) Maintenance at the End of the Operational Season
1) When the weather is clear, operate the unit for half a day, so as to dry the inside of the unit.
2) If not to use the air-conditioning unit for a long time, please disconnect the power supply.
Caution:
You shall pay attention to the following matters when cleaning the air-conditioning unit.
①.
Cut off all power supply before contacting the line connecting equipment.
②.
Only clean the air-conditioning unit after the unit is shut off and the power supply is disconnected. Otherwise electrical shock or injury may be caused.
③.
Do not use water to clean the air-conditioning unit. Otherwise there may be electrical shock.
④.
Pay more attention to the place that the air conditioner should be installed firm.
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