Jolly Top - Uncategorized FERROLI - Free user manual and instructions

USER MANUAL Jolly Top FERROLI

Cod. 3QE46280 - Rev. 00 - 06/2020

INSTALLATION, MAINTENANCE AND USER MANUAL

VEL. ALTAVEL. MEDIAVEL. BASSA

Troubleshooting Non-unit related faults Product data SERVICE GUIDE Packaging and assembly Handling instructions Installation Liquid pipe connections Electrical connection Startup guide INSTALLATION INSTRUCTIONS Maintenance by customer Professional maintenance

CLEANING AND MAINTENANCE

CONTENTS Standard conditions for use Switch and control Air supply direction adjustment Meaning of various labels PRODUCT OVERVIEW WARNING OPERATION INSTRUCTIONS Warning Note Information The manufacturer declines all responsibility for any inaccuracies in this manual due to printing or typing errors. The manufacturer reserves the right to modify the products contents in this catalogue without previous notice. EN01

2 WARNING This section describes important safety information. Please read the Manual carefully, especially those operating standards with “Warning” or “Note” signs. Failure to abide by these standards may lead to personal injury or damages to the unit or other items. To be purchased separatelyPcs To be purchased separatelyPcs To be purchased separatelyPcs To be purchased separatelyPcs To be purchased separatelyPcs To be purchased separatelyPcs Pcs Set To be purchased separately from the manufacturer To be purchased separately from the manufacturer To be purchased separately from the manufacturer Pcs Accessories Pcs Schematic Unit Qty Remarks To be purchased separately Set Operation and Installation Manual Fastening screw Three-way valve and its piping assembly Auxiliary drain pan Wired controller Inlet hose Footing NO. Name Outlet hose Filter Check valve (inlet and outlet pipes) Drain pipe Air outlet Air inlet I-VM; 3V-VM - Product appearance (FDVHG) Air outlet Air inlet I-VN; 3V-VN - Product appearance (XQFDVHG) 1 PRODUCT OVERVIEW This ceiling & floor type unit is used for indoor air quality regulation in various scenes. It is intended to be used by expert or trained users in shops, in light industry and on farms, or for commercial use by lay persons. NOTE The figures here are for reference only and may have differences with the actual product you received. ENi

Read the Manual carefully and perform a safety inspection in advance so that you can be fully aware of the possible dangers as you use or install the unit. The manufacturer shall not be liable for any personal or animal injury or damage to any object caused by incorrect installation, adjustment, maintenance or improper use. The manufacturer is not held liable for any damages resulting from faulty operations against this Manual. Do not expose this unit to wet or humid environments as this may damage the electrical components. Do not store this unit in the open air. Do not stack unpackaged units. Do not use this unit to store food, plants, precision instruments, artwork, etc. To operate the unit for the first time, exhaust the air in the coil; otherwise, the performance may be compromised. Clean the inside of the water pipe before use. Remember to implement anti-freezing measures for coil in winter. For details, please refer to anti-freezing instructions herein. Keep the unit energized even if it is not in service over a long period. Adopt self-protection measures when you install, maintain or clean the unit. Do not press the unit. Handle it carefully as any damages may cause unit malfunction. Reserve enough space for installation and maintenance. Before installation, check whether the unit is reliably grounded. Otherwise, do not proceed with the installation. In no circumstances can the earth line for main power switch be disconnected. Rotate the fan impeller during installation. Contact the manufacturer if you hear any abnormal noises.

Ask qualified professional staff to install (install for the first time, change the place of the unit or re-install) and repair the unit and its parts. Do not attempt to install or repair the air conditioner by yourself, as any improper operations may lead to fire, electric shock, personal injury or water leakage. Make sure the unit is grounded reliably in accordance with the laws. Otherwise, it may cause electric shock. Stop using the air conditioner and consult your dealer in case of any abnormalities. Otherwise, fire or electric shock may occur. Do not attempt to maintain or alter the unit by yourself. Improper operations may cause water leakage, electric shock or fire. Make sure the leakage protection device is installed, or electric shock may occur. Do not wash the unit with water, or electric shock may occur. To avoid electric shock, do not place any water-filled container on the unit. Do not operate the switch with wet hands, or electric shock may occur. Do not put your fingers or other objects into the unit, it can result in serious injury. Do not obstruct the air supply channel, as that may result in personal injury or damages to the unit. Check that the supporting structure of the unit is securely installed after a long period of use, to prevent fall accidents. Make sure the installation base and hoisting are robust and reliable; otherwise, the unit may fall and lead to accidents. Do not expose yourself to cold air over a long period. Too low temperature may cause harm to your health. Do not expose animals or plants to air outlet to avoid any harm. This unit is intended for air handling only. Do not use it for animal rearing. Do not install the unit where flammable gas may leak. Otherwise, fire may occur. Do not install the unit in potentially explosive atmospheres. Keep the unit far away from combustible spray to avoid fire. Use proper fuse. Do not use iron wire or copper wire, as it may cause fire or unit abnormality. When connecting power supply to the unit, follow the regulations of the local electric company. Provide separate power switch to ensure the unit can be disconnected from power properly. Do not use this unit to store spare parts or other items. Please attach enough importance to the signs and symbols indicated on the unit. Any other potential hazards not covered in the Manual (if any) should be specified in labels attached to the unit. For safety concerns, only the manufacturer or its service agent or a similarly qualified person can replace a damaged wire. For any faults not covered by the Manual, please contact the manufacturer immediately. Tampering with the unit can result in very hazardous situations. The manufacturer does not accept liability for damage resulting from unauthorized or inappropriate changes to the product.

2.1 Meaning of various labels

A situation that may lead to death or injury. WARNING A situation that may cause damage to the unit or loss of property. Indicates a useful hint or additional information. INFORMATION NOTE (103 17-32°C 0-30°C Figure 3-1 Installation position of wired controller Figure 3-2 After installation of wired controller (only for I-VM units) Wired controller Controller installation place The unit can only operate normally as long as you strictly adhere to the regulations outlined in the Manual. Water inlet temperature range is 3-75°C. The wired controller should be purchased separately from the manufacturer. Other wired controllers are not applicable. Installation position of wired controller You can install the wired controller on the left, or right of the unit or on the wall as required. Make sure the wired controller is close to the electric control box. Please refer to the Wired Controller Operation and Installation Manual for installation methods.

3.2 Switch and control

Water inlet temperature range recommended is 3-65°C. Water inlet pressure range is 0-1.6MPa. The unit can achieve optimum performance when running within the temperature range listed above. At a temperature beyond the listed ranges, unit faulty may occur.

3.1 Standard conditions for use

Cooling Mode Indoor temperature Heating In normal cases In cooling mode, fog may appear at the air outlet. Use the unit in the following temperature range for safe and effective operation. Make sure that the water discharge pipeline can provide smooth drainage. Improper installation of the water discharge pipeline may lead to water leakage, and damages to furniture. Make sure the liquid pipeline and air duct are reliably supported. Make sure pipes and connectors are not distorted. The water inlet and outlet pipes must have check valves installed and be wrapped with insulation materials. Connect the wires as required. Otherwise, it may cause damage to electrical parts. The actual power supply must be consistent with the nominal nameplate value, or permanent damage may occur. Use power cord with a proper diameter. Do not use damaged cables. Replace the damaged cables immediately if necessary. Do not attempt to repair the damaged cables. Keep for future reference. 3 OPERATION INSTRUCTIONS This appliance can be used by children aged 8 and above and persons with reduced physical, sensory or mental capabilities or lack of experience and knowledge if they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Cleaning and maintenance shall not be made by children without supervision. Keep the unit serial number available for future reference and in case when you need to contact the after-sales service. Do not bring any combustible materials near the air outlet. Transport the unit as per requirements indicated on the package. Avoid crash, fall-over or squeeze and keep away from rain and snow during transportation. Store the unit in a clean, dry, fire-proof and well-ventilated place without any corrosive gas. To avoid shock during transportation, fix the unit and its accessories on the transportation platform with ropes or by other means. The manufacturer is not responsible for unit damages or personal injury resulting from unauthorized operations or use of non-original parts or accessories. Ventilation Periodically ventilate the room where the unit is installed. Ventilation is especially important in case the room has many people in it or has flammable devices or gas sources. Poor ventilation may result in lack of oxygen. - Before unit operation, clean water pipes to prevent them from being blocked. - Upon FCU test run or switching between hot and cold water, open the vent valve to exhaust air in the coil until water flows out. Otherwise, the heat exchange performance may be significantly compromised. During operation Filter is normally not removed except for maintenance purpose, as doing so may cause foreign objects to enter the unit.

Before starting the unit again, you should: Clean or replace the air filter. Clean the heat exchanger. Make sure the drain pipe for drain pan of heat exchanger is clean; if not, wash it. Remove air from the water system. If the unit is not to be used in winter, drain the water system when appropriate. Otherwise, the water in the system may freeze, thus causing damage to the unit, or leading to water leakage, electric shock or damage to furniture. Start the unit after it has not been used for a long time Leave the unit unused for a long period

Start or stop the unit using the wired controller or centralized controller. The wired controller is adjusted according to the logic of the seven-level control system. Auto speed Seven fan speeds Controller output voltage Fan speed Shutdown Low Medium low Medium Medium high High Super high Strong 0≤Voltage<1 1≤Voltage<3 3≤Voltage<4 4≤Voltage<5 5≤Voltage<6 6≤Voltage<7 7≤Voltage<8 8≤Voltage<10 Table 3-1 ,900-10V wired controller output signal specification The Operation Manual is provided with the wired controller. You can complete the following operations using the manufacturer’s wired controller: Start/stop the unit. Switch between seven fan speeds and auto. Constant temperature set within a desired range. Switch among Cool, Heat, Dry, and Auto. 0-10V wired controller output DC voltage signal to main board.The main board receives the signal and controls the motor according to the corresponding speed. (11

Blow the air filter with compressed air or clean it in water.Before putting the filter back, make sure it is clean and dry. If it is damaged, replace it with a new one.Figure 4-1 Removing the filterScrewScrew NOTE Disconnect the unit from power supply before cleaning or maintenance.Do not spray water on the unit.The filter is at the bottom of the unit, while the air return outlet is at the bottom or the rear side.To take the air filter out, do as follows:a) Remove the screws ① and ②.b) Rotate the filter bracket.c) Pull out the filter.1) Cleaning the air filterTo ensure proper air return, clean the air filter at least once every month. If used in a dusty environment, the filter must be cleaned on a more frequent basis. Take the air filter out before you can clean it.Cleaning the outer surface of the unit is permitted. Dip a piece of soft cloth in cold water and alcohol to clean the unit. Do not use hot water, solvent, abrasive or corrosive substances.

4.1 Maintenance by customer

NOTE Cleaning and maintenance must not be performed by minors without supervision. 4 CLEANING AND MAINTENANCE Figure 3-3 Adjusting the air supply direction screw NOTE Do not touch the heat exchanger to avoid any personal injury.To adjust the air supply direction, do as follows:1) Remove the screws (M3.9*10) fixing the louver.2) Disassemble the louver manually.3) Rotate the louver by 180° and then put it back manually.4) Put the screws back and fasten them.You can manually adjust the louver to change the air supply direction.

3.3 Air supply direction adjustment

NOTE Only qualified technicians who have unit and refrigeration system experience can perform maintenance operation. Proper gloves are required. For dual-pipe system and four-pipe cold water coil, the water inlet and outlet joints are G3/4. For four-pipe hot water coil,the water inlet and outlet joints are G1/2. The casing of the unit is made of galvanized steel; the air filter is made of nylon fibre, and the aluminum alloy air filter can be customized; the motor has internal overheat protection and overcurrent protection; a centrifugal rotating fan is used; a soundproof material such as sponge is used; the fin type heat exchanger is composed of copper pipe and aluminum foil, and the heat exchanger pipe connection can be changed on site. Before maintenance or check, disconnect the unit from power supply, keep the main switch closed with warning sign attached, to prevent others from resuming the power accidentally.

Check whether the air filter is clean. The air filter is washable as it is made of fibre. When the unit is operational, make sure you check the air filter every month.

3) Once every six months

Check whether the heat exchanger and condensate drain pipe are clean. After power disconnection, disassemble the unit to check the heat exchanger and condensate drain pipe. Figure 4-3 Unit uncased FanFilterReturn air cover Water inlet Water outlet Figure 4-2 Unit cased Heat exchanger Air outlet grille Drain pan BaseFanFilterMotorCasing Water inlet Water outlet Heat exchanger Air outlet grille Drain pan Drain pipe connection Electric control box Electric control box

Figure 4-6 Removal of casing Figure 4-8 Removal of drain pan and heat exchanger Casing assembly Figure 4-7 Removing the electric control box Heat exchanger Drain pan Figure 4-4 Removal of casing Figure 4-5 Removal of filter, upper volute and motor screws

7) If the heat exchanger needs to be replaced, follow the steps below:

a) Unplug the unit. b) Shut off the water supply. c) As shown in Figure 4-6, remove screws ①*2 and ②*2 and then the casing. d) Drain the coil. e) Disassemble the inlet and outlet pipes. f) As shown in Figure 4-7, remove screws ①*2 to remove the electric control box. g) As shown in Figure 4-8, remove screws ①*7 to take the drain pan out. Then, remove screws ②*4 to take the heat exchanger out. h) Pull out the temperature sensor plug. Install back the heat exchanger in reverse order. Casing assembly FanFan Upper propeller housing Motor a) Unplug the unit. b) As shown in Figure 4-4, remove screws ①*2 and ②*2 and then the casing. c) As shown in Figure 4-5, remove screws ①*2 to take the filter out. Then, remove the upper volute. After that, remove four screws (②) that fix the motor, to disconnect the motor cable and the main board. Then, take out the fan and the motor. Disassemble the fan to get the motor. Install back the motor in reverse order. e) Check whether the system has air. Start and let the system run for several minutes. Stop the system. Open the air discharge valve to remove air. Repeat this operation until the air is exhausted.

5) Maintain the circuits.

Check whether the power cord, electrical contacts, terminals, etc. are loose or damaged.

6) If the motor needs to be replaced, follow the steps below:

4) If necessary, you should:

a) Remove any foreign matters that may impede air flow. b) Remove the dust with compressed air or clean water and avoid damage to the heat exchanger. c) Dry with compressed air. d) Check for any impurities in the drain pipe that may impede water flow. Electric control box Temperature sensor plug (108 Before installation, unpack the unit and its accessory,and find the attached Operation and Installation Manual and related assembly. The support surface of installation must be strong enough to bear the weight of the unit. Before installation, check with the customer whether the wall or ground where installation is located has buried wires, water pipes or gas pipes. Make sure the inlet and outlet pipes and drain pipe are air-tight.

1) Check the space technically required for

installation: Space required for installation. Space required for connecting the liquid lines and other valves. Space required for connecting power supply. Space required for connecting the unit to the external control panel (if any). Space required for setting flow route and air inlet (for specific models). Space required for correct and sufficient air flow. Space required for removing condensate water. Space required for cleaning the filter. Space required for cleaning internal assembly and maintenance.

2) Installation guide:

Remove the casing: Remove screws ①*2 and ②*2 and then the casing. Wear personal protective equipment during handling. To avoid damages to external structures, internal mechanical and electrical components, caution must be exercised during handling. Make sure there are no obstacles or pedestrians along the way in case collisions or crushing occurs or lifting or handling equipment falls over.

5.1 Packaging and assembly

Only trained professionals can move and lift the unit. Upon arrival of the unit, you must check whether it is intact and provided with complete accessories. Using damaged unit may be hazardous.

1) When removing the unit package, follow the steps

below: Check whether the package and unit are intact and whether accessories are complete. Unpack the unit. Dispose off packaging materials at a suitable waste receiving or recycling station, depending on the laws of the country or locality where the installation is to be done. Place the package out of the reach of children.

5.2 Handling instructions

All of the following operations must be performed in accordance with current health and safety regulations, including the equipment used and the procedures followed. Before operation, verify that the lifting device is capable of lifting the unit. You can lift or move the unit using your hand or using a proper handcart. For a unit that weighs over 30 kg, package it before it can be lifted using a crane or by similar means.

Follow the instructions when installing the unit. Read the Manual carefully before proceeding with any operations. Installation can be only performed by a professional technician. Incorrect installation may lead to unit faults or degraded performance. You must abide by the regulations of the country or locality where the installation is located.

8) If the unit or its parts need(s) to be removed, make sure that:

Only a professional person can disassemble the unit. The system with antifreeze must not be discarded; otherwise, it will cause pollution. It should be collected and then be disposed off properly. As a special waste, electronic components must be handled by professional persons together with polyurethane foam, polyurethane and sound absorbing sponge. 5 INSTALLATION INSTRUCTIONS NOTE The instructions are applicable to IDU only. Customization is required for use in salty surroundings (close to the shore). Install the water softening device if hard water that has a high salt content is to be supplied to the coil. Handle with care. Do not exert too much pressure on the unit. Any damages to the fan, unit surface or piping may cause faults. (12

Figure 5-4 Installation of lifting bolts Sliding-type insertion piece Embedded bolt(hanging and embedded bolt of piping) Knife-type insertion piece Angle steel for support Directly set and use an angle steel for support. Rebar Suspension bolt Suspension bolt Set using embedded appliances, and embedded type of bolts. Structure the square rod on the beam to set the lifting bolts. Figure 5-2 Diagram for fixing the unit body

3) Install the unit following the steps below in case it

is ceiling mounted. To match the existing structure, set the screw pitch according to the unit dimensions. Use embedded bolts, and pull bolts. The footings shown in Figure 5-3 are optional. You can purchase them separately and install them as follows:

1. Put the footings beside the unit to be installed.

2. Place the mounting holes on the unit base into the

corresponding footing locating pin and install screws ①*2 and ②*2 to fix the footing according to Figure 5-3. Figure 5-3 Base Footing Base Casing assembly Figure 5-1 Mark the places for screws on the wall according to the unit mounting holes or dimensions specified in Figure 5-12. The drain pipe for condensate water must be smooth enough to allow unobstructed water discharge. As shown in Figure 5-2, fasten four screws (①) into a proper masonry structure. Wood structure Original concrete slab structure Steel framework Newly set concrete slab structure (1a

Figure 5-7 Figure 5-11 Ceiling XQFDVHG Figure 5-5 Diagram of ceiling FDVHG Figure 5-6 Diagram of ceilingXQFDVHG

5.3.1 Spacing and positioning

Incorrect positioning or installation may increase the noises and vibration of the unit during operation. If not enough space is reserved during installation, the unit may face difficult maintenance and reduced performance. The unit allows vertical installation, provided that correct positioning is arranged in advance. As shown below, a is greater than 150 mm, b greater than 90 mm, c greater than 50 mm and d greater than 1500 mm. Figure 5-10 Vertical type XQFDVHG Figure 5-8 Figure 5-9 Ceiling FDVHG Footing (1A

Figure 5-13Water outletDrainageWater inlet

5.4 Liquid pipe connections

1) Only professionals can operate the liquid pipes.Drain pipe must be the different side with the electric control box.Connect the unit to the water system using inlet and outlet connectors.ModelFigure 5-12 Table 5-1 Unit: mm

NOTE Do not consider the unit as a surface that can be relied on during actual use. Reserve enough space during installation for ventilation purpose.Using water or spray near the unit can cause electric shock and malfunction. Unit: mm

Figure 5-17 Removal of casing Casing assembly

4) How to change the coil from left-hand connection

to right-hand connection Left-hand connection of the coil is adopted by default. You can rotate the coil and change to right-hand connection. Before installation, you should change the direction of the coil on the ground. Steps of changing the coil direction: As shown in Figure 5-17, remove screws ①*2 and ②*2 and then the casing. As shown in Figure 5-18, remove screws ①*7 to take the drain pan out. Then, remove screws ②*4 to take the heat exchanger out. Pull out the temperature sensor plug. Rotate the coil in the direction as shown in Figure 5-18. As shown in Figure 5-19, remove screws ①*2 to take the electric box out. Fasten the screws on the coil. As shown in Figure 5-19, block the diamond-shaped holes on the side plate (the plate without inlet and outlet pipes) with sponge. Reverse the direction of drain pan plug. Re-install the electric box to the side plate without inlet and outlet pipes. Re-connect the wires. Figure 5-16 Auxiliary drain pan Figure 5-15 The customer has to purchase the three-way valve and its accessories (Operation and Installation Manual attached) separately from the manufacturer. The customer may also need to purchase the auxiliary drain pan separately from the manufacturer if required. See the steps below for installation of auxiliary drain pan:

3) Set water storage elbow

The condensate drain system must be fitted with a suitable elbow to prevent odour penetration. Follow the steps below to set the elbow. 50mm50mm Place a drain stopper at the bottom of the elbow Figure 5-14 3cm/m Make sure the drain connector is stress-free Base knockout plate Remove the knockout plate at the foundation in case the water pipe passes under the unit All water system coils are equipped with discharge and drain valves. Use a screwdriver or wrench to open and close the valve.

2) When installation is complete,

a) Remove air inside pipes. b) Wrap the connecting pipes and all the valve body with anti-condensation material (EPDM or PE) of no less than 10 mm thick or install auxiliary drainage equipment. c) Pour water into the drain pan and check it all the way until you can see water flows from the drain outlet. Alternatively, you may check the drain channel and remove impurities that may obstruct the flow. d) Install the condensate drain system. e) The condensate drain system must be properly lowered to ensure water discharge. Follow the steps below to set the condensate drain system. (11

Make sure that the power supply falls within the range of 220-240V~1ph 50Hz/60Hz and is able to provide enough wattage for the unit. The power supply system must comply with the current national safety regulations. The electrical connection must be completed by qualified professionals and must comply with local laws and regulations. The company is not responsible for personal or property damage resulting from any incorrect electrical connections. Provide dedicated and suitable leakage protection device for the unit, with a minimum distance of 3 mm among the wiring contacts. The unit must be grounded reliably. Make sure that the power cord has a large-enough cross section to withstand the maximum current required. Never use a damaged cable. Perform electrical connections according to the wiring nameplate (Figure 5-20 or Figure 5-22) of the unit. Secure the cable using clamps in the electric control box to ensure the safety of the power supply cable and the connection cable. Do not pull, step on or squeeze the cable. Do not use nails or staples to secure the power cord. The cable must be passed through the knockout hole at the foundation. An AC contact switch (with contact separation of at least 3mm) must be installed on the fixed wiring to disconnect the machine from the electrical mains and the omnipolar switch.

5.5 Electrical connection

The water in the unit may freeze when the unit is left unused in winter. Drain the water system when appropriate if it is not used over a long period. Or you can simply add proper amount of antifreeze into the water system of the unit. NOTE Mixing water with glycol will affect the unit performance. Please pay attention to the safety instructions attached to the glycol container. Figure 5-19 Removing the electric control box and blocking the diamond-shaped holes Diamond-shaped holes blocked with sponge Electric control box Figure 5-18 Drain pan Heat exchanger Temperature sensor plug (114 CN27 CN28 CN23 AC-L AC-N CN8 CN17 CN6 XT1 L N CN29

XP4 XS4XP5 XS5 T2C FAN XP6 XS6XP7 XS7 Figure 5-21 Cabling diagram (unit with inverter motor I-VM; I-VN) CableIron plastic strip Positioning thread buckle POWER IN Y/G Figure 5-20 Wiring diagram (unit with inverter motor I-VM; I-VN)

COM Thermostat POWER INALARMBLUREDALARMPUMP Bi-directional communication Wired controller ON/OFFTO CCM.COMM.BUSMODBUS RTU TO UPPER UNITON/OFF0-10V Wired controllerInfrared Wired controllerCDABEWATER MAIN BOARD Green LED Red LED Swing Motor1Swing Motor2

1 and 2.5 >3 and ≤6 >6 and ≤10 >10 and ≤16 >16 and ≤25 >25 and ≤32 >32 and ≤50 >50 and ≤63

4 and 6 6 and 10 10 and 16 1 and 2.5 1 and 2.5

4 and 10 6 and 16 10 and 25

Rated current of appliance(A) Nominal cross-sectional area (mm

Flexible cords Cable for fixed wiring Table 5-3 Please refer to the corresponding wired controller manual for the wired controller wiring. Power supply Communication wire between IDU and wired controller * 220-240V~50/60Hz Shielded ×AWG16-AWG18

CIRCUIT BREAKER/FUSE (A) 15/15

Phase Volt and frequency 1-phase Refer to Table 5-2 and Table 5-3 for the specifications of the power cord and communication wire. A wiring capacity that is too small will cause the electrical wiring to become too hot, and result in accidents when the unit burns and becomes damaged. Table 5-2 Model ALL Select the wire diameters (minimum value) individually for each unit based on Table 5-3. The maximum allowable voltage range variation between phases is 2%. Select the circuit breaker that has a contact separation of no less than 3 mm in all poles to provide full disconnection.MFA is used to select the current circuit breakers and residual current operation breakers: AC FAN Figure 5-22 Wiring diagram (version 3V-VM; 3V-VN) The grounding wire in the electrical control box needs to be longer than the current-carrying wire. To Thermostat BLUE BLACK GRAY WHITE FAN LOW MED

COM TERMINAL BLOCK (116 If the error occurred does not fall within those described in the above table, follow the steps below. Error Countermeasure Turn off the main power switch. Turn off the power supply. Error Countermeasure The system does not run at all. A safety device, such as a fuse, circuit breaker or a leakage circuit breaker is triggered frequently, or the ON/OFF switch is not working properly. When a centralized controller is used, the unit number is displayed on the user interface, the operating indicator is flickering, and an error code is shown on the screen as well. The system is running but there is insufficient cooling or heating. Check whether there is a power failure. Wait for the power supply to be restored. If a power failure occurs during unit running, the system will restart automatically once the power is restored. Check whether the air outlet is blocked by any obstacles. If any, remove the obstacles. Check whether the filter is blocked. Check the temperature setting. Check the fan speed settings on the user interface. Check whether the doors and windows are open. Close the doors and windows to shut out wind from the external environment. Check whether there are too many people in the room when the unit is running in Cool mode. Check whether there is too much heat dissipated from any heat source in the room. Check whether there is direct sunlight into the room. Use curtains or blinds. Check whether the angle of air flow is appropriate. The operating switch is not functioning normally. Notify the installation personnel and report the error code. 6 SERVICE GUIDE Ask a professional technician to repair a faulty unit. Make sure the power supply is disconnected during repair. Machine commissioning or first start-up must be performed by a professional. Before startup, make sure that the installation and electrical connections are made in accordance with this Manual, and that no unauthorized personnel is near the machine during operation.

1) Before starting the unit, make sure that:

The device is positioned correctly. The water system’s flow and piping are correct. The water pipe is clean.

The warranty does not cover the damage caused by dismantling or cleaning of the internal components by unauthorized agents. The system maintenance must be carried out by qualified maintenance personnel.

When any unusual situations arises (burning odour, etc.), stop the unit immediately and turn off the power. If there is any damage, such as electric shock or fire, caused by the unit, contact your dealer. WARNING The air can flow normally. The condensate water can flow normally to the drain outlet and the elbow. The heat exchanger is clean. The electrical connection is correct. The connecting cable is secure. The power supply meets requirements. The motor works normally within the allowable value. ENName

The following fault symptoms are not caused by the unit itself:

1) Fault symptom: Fan speed is not consistent with the setting

The fan doesn’t respond to the controller. In Cool mode, when the pipe water temperature exceeds the allowable range of room temperature, the fan speed will be maintained at a low level to avoid direct exposure to hot air. In Heat mode, when the pipe water temperature reaches a certain low level, the fan speed will also be maintained at a low level to avoid direct exposure to cold air.

2) Fault symptom: Fan direction is not consistent with the setting

The fan direction is inconsistent with that indicated on the user interface. Swing is a customized function. When Swing is enabled but the fan direction does not change accordingly, it is because the unit is responding to other control instructions.

3) Fault symptom: white fog from a certain unit

This may result from high humidity during cooling operation. If the fan coil interior is dirty, the indoor temperature distribution may be uneven. At this time, you need to clean the inside of the unit. Ask the dealer for information on how to clean the unit. This operation must be carried out by qualified maintenance personnel.

4) Fault symptom: dust and dirt in the unit

This may happen after the unit is used again after being left idle for a long period. This is because there is dust inside the unit.

5) Fault symptom: odour from unit

The unit will absorb odours of rooms, furniture, cigarettes, etc., and then disperse the odours. Odours might occur after small animals enter the unit.

6.2 Non-unit related faults

Refer to Maintenance Manual for troubleshooting. Buzzer Action Error Code

Buzzes twice every 3 seconds Buzzes twice every 3 seconds Buzzes twice every 3 seconds Buzzes twice every 3 seconds Buzzes twice every 3 seconds Buzzes twice every 3 seconds Buzzes twice every 3 seconds Buzzes twice every 3 seconds Buzzes twice every 3 seconds Buzzes twice every 3 seconds Flashes 3 times every 3 seconds Flashes 3 times every 3 seconds Flashes 4 times every 3 seconds Flashes once every 3 seconds Fault IndicatorRunning Indicator Steady on Steady on Steady on Steady on Steady on Blinking Blinking Blinking Blinking BlinkingRemote shutdown Model protection not set (DIP switch of the unit not listed in the model table) Water temperature protection DC motor stall fault Coil sensor (T2C) port exception Coil sensor (T2C) port exception

1) Error code overview

If a centralized controller is used, error codes (if any) will appear on the user interface. Contact the installation personnel and inform them of the error code, unit model and serial number (you can find the information on the nameplate of this unit). Error Protection Error Error Protection Protection Protection Protection NO.

PROM communication error Room temperature sensor port exception Water level exceeding warning line Anti-freezing protection Flashes once every 3 seconds Flashes twice every 3 seconds Flashes twice every 3 seconds Flashes 3 times every 3 seconds Flashes 4 times every 3 seconds Flashes 5 times every 3 seconds (1255

G3/4 (*) Conditions: ambient temperature 27°C DB/19°C WB; water inlet temperature 7°C; water outlet temperature 12°C; maximum speed (**) Conditions: ambient temperature 20°C DB/15°C WB; water inlet temperature 45°C; water outlet temperature 40°C; maximum speed (***) The sound pressure level in dB(A) indicates the value measured at 1 m away from an open air outlet. The sound pressure level is below 70 dB. Model Air flow volume (m

ON/OFFVERS CCM.COMM.BUS