SYSVRF2 DUCT GB Medium ESP Duct VRF indoor unit INSTALLATION MANUAL
Contents Installation Manual............................................................................. 1 Accessories........................................................................................ 2 1. Before Installation.......................................................................... 3 2. Choosing an Installation Site ......................................................... 3 3. Indoor Unit Installation................................................................... 4 4.
4. Where there is a high salt content in the air. When exposed to air with a high salt content, the mechanical parts will experience accelerated ageing which will severely compromise the service life of the unit. 5. Where there are major voltage fluctuations. Operating the unit using a power supply system that has large voltage fluctuations will reduce the service life of the electronic components, and cause the unit's controller system to malfunction. 6. Where there is a risk of leakage of flammable gases.
1. Before Installation Install back cover plate assembly 1.1 Determine the route to move the unit to the installation site. 2.2 First unseal and unpack the unit. Then hold the four lifting lugs to move the unit. Refrain from exerting force on other parts of the unit, especially the refrigerant piping, water discharge piping, and plastic parts. 2. Choosing an Installation Site 2.1 Choose a site that fully complies with the following conditions and user requirements to install the air conditioning unit.
3.1 Lifting of the Indoor Unit 1. Install with Φ10 lifting bolt Metallic air diffuser 1) Use the Φ10 lifting bolt. 2) Ceiling removal: As each building structure is different, discuss with the interior decoration workers of the building about the specific details. a. Ceiling treatment: Reinforce the ceiling pedestal to make sure that the ceiling is level and to prevent ceiling vibrations. b. Cut off and dismantle the ceiling pedestal according to the unit installation dimensions. c.
3.3 Installation of the Indoor Unit Lifting bolt Nut (top) 1. Adjust the positions of the nuts, the size of the gap between the washer (bottom) and the ceiling should be based on the actual construction works. See Figure 3.1. 2. Slot the nuts of the lifting bolts in the oblong holes of the lifting lugs. 3. Use a spirit level to verify that the unit body is level. (do not tilt downwards towards the side where no water is discharged. Best is to tilt to where water is discharged). See Figure 3.2.
4. Refrigerant Piping Installation Before the socket cap is installed on the pipe socket, apply some refrigerant oil on the socket (both inside and outside), and then rotate it three or four times before you tighten the cap. See Figure 4.3. 4.1 Length and Level Difference Requirements for the Piping Connections to the Indoor and Outdoor Units Apply refrigerant oil The length and level difference requirements for the refrigerant piping are different for different indoor and outdoor units.
5. Water Discharge Piping Installation 8. The end of the water discharge pipe must be more than 50 mm above the ground or from the base of the water discharge slot. Besides, do not put it in the water. 5.1 Water Discharge Piping Installation for Indoor Unit 1. Use PVC pipes for the water discharge pipes. Based on the installation scenario, users can purchase the appropriate piping length from a sales agent, local after-sales service center, or local market.
6. 6.2 Fan performance Air Duct Installation 6.1 Piping Design and Installation (Pa) 80 1. In order to prevent short-circuit air delivery, the piping for air outlet and air inlet ducts must not be too close. 2. The indoor unit does not have an air filter installed. The air filter must be installed at a location like an air inlet where it can be easily maintained.
(Pa) (Pa) 160 80 POWER 70 SH 60 (Pa) H L 40 LL LLL 30 20 LLL 80 700 750 800 850 900 950 1000 30 40 50 60 70 80 90 100 125 150 LL 60 40 20 0 1250 650 1350 1450 1550 1650 1750 1850 1950 Model:140 1050 Q(m3/h) Model:71 (Pa) M L 100 10 0 POWER H 120 0 10 20 30 40 50 60 70 M 50 SH 140 2050 Q(m3/h) Fig.6-10 Fig.6-6 Set proper external static pressure (ESP) according to the actual installation conditions. Otherwise it may cause some problems.
7. Electrical Wiring 7.2 Electrical Wiring Specifications 220-240V~50Hz 220-240V~50/60Hz Power supply Warning • All the supplied parts, materials and electrical works must comply with local regulations. • Use only copper wires. • Use a dedicated power supply for the air-conditioners. The power voltage must be in line with the rated voltage. • The electrical wiring works must be carried out by a professional technician, and must comply with the labels stated in the circuit diagram.
7.3.1 Communication wiring between the indoor and outdoor units The indoor and outdoor units communicate via the RS485 serial port. The communication wiring between the indoor and outdoor units should be connected one unit after another in a daisy chain from the outdoor unit to the final indoor unit.And the shielded layer must be properly grounded, and a build-out resistor must be added to the last indoor unit to enhance the stability of the communication system (see Figure 7.6).
ENC1 Settings for Capacity DIP Switch: DIP Switch Code 0 1 2 3 4 5 6 7 9 B SW2 Capacity 2200W 2800W 3600W 4500W 5600W 7100W 8000W 9000W 11200W 14000W SW2 [ 00 ] External static pressure 1 SW2 External static pressure 2 SW2 External static pressure 3 SW2 External static pressure 4 [ 01 ] [ 10 ] [ 11 ] Note: Caution • The capacity DIP switches have been configured before delivery. Only a professional maintenance personnel should change these settings. 8.
8.4 Error Codes and Definitions SW7: reserved J1 Auto restart function enabled Auto restart function disabled Caution • • • All DIP switches (including the capacity DIP switch) have been configured before delivery. Only a professional maintenance personnel should change these settings. Improper DIP switch settings may cause condensation, noise, or unexpected system malfunction. The default DIP switch setting is based on the actual unit.
Operation Manual • There are two types of precautions as described below: Warning: Failure to comply may lead to death or serious injury. Caution: Failure to comply may lead to injury or damage of the unit. Depending on the situation, this may also lead to serious injury. Once the installation is completed, please keep the manual properly for future reference. When this air conditioner is handed over to other users, make sure that the manual is included with the handover.
• • • • • • 10. Part Names To avoid damaging the remote controller, exercise caution when using it and replacing its batteries. Do not place objects on top of it. Do not place appliances that have naked flames under or near the unit, as heat from the appliance can damage the unit. Do not place the unit’s remote controller in direct sunlight. Direct sunlight can damage the remote controller’s display.
Maintain a proper air distribution.Air outlet louvers should be used 12. Air Conditioner Operations and Performance to adjust the direction of outlet airflow, as doing so might ensure more efficient operation. The operating temperature range under which the unit runs stably are given in below table. Mode Indoor temperature Cooling 17-32°C If the indoor humidity is above 80%, condensation may form on the surface of the unit.
2. Dismantle the air filter. 14. Maintenance 3. Clean the air filter Dusts will accumulate on the filter along with the unit operation, and need to be removed from the filter, or the unit would not function effectively. Caution • • • • • • • • Please release pressure before disassembly. Before you clean the air conditioner, ensure it is powered off. Check that the wiring is undamaged and connected. Use a dry cloth to wipe the indoor unit and remote controller.
Symptom 2: The unit emits white mist Caution • • Do not dry out the air filter under direct sunshine or with fire. The air filter should be installed before the unit body installation. 4. Re-install the air filter. Maintenance before stopping using the unit for a long time (e.g., at the end of a season) White mist is generated and emitted when the unit starts to operate in a very humid environment. This phenomenon will stop once the humidity in the room is reduced to normal levels.
16.2 Unit Troubleshooting Symptom Possible causes Troubleshooting steps A power cut has occurred (the power to the premises has been cut-off). Wait for the power to come back on. Power on the unit. This indoor unit forms part of an air conditioning system that has multiple indoor units that The unit does not start are all connected. The indoor units cann’t be powered The unit is powered off. on individually - they are all connected to one, single power switch.
16.3 Remote Controller Troubleshooting Warning: Certain troubleshooting steps that a professional technician may perform when investigating an error are described in this owner's manual for reference only. Do not attempt to undertake these steps yourself – arrange for a professional technician to investigate the problem. If any of the following errors occur, power the unit off and contact a professional technician immediately.
16.4 Error Codes With the exception of a mode conflict error, contact your supplier or service engineer if any of the error codes listed in the following table are displayed on the unit's display panel. If the mode conflict error is displayed and persists, contact your supplier or service engineer. These errors should only be investigated by a professional technician. The descriptions are provided in this manual for reference only.
16126000A14978 V1.
