Инструкция на Кондиционеры серии Н и W Liveline бренда Tecnair

AIR CONDITIONERS

FOR SURGICAL ROOMS AND FOR CLEAN ROOMS INSTALLATION USE AND MAINTENANCE HANDBOO Handbook code 75802206A.0204 Sheet 1 of 82

GENERAL INFORMATIONS 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 2. 3. 4 CE DECLARATION OF CONFORMITY DECLARATION OF THE MANUFACTURER WARRANTY APPLICATION OF THE PRESENT MANUAL UNIT CODING OPERATING LIMITS SPARE PART LIST DOCUMENTS INCLUDED IN THE UNIT COMPONENTS DESCRIPTION AND OPERATION 12 2.1 2.2 2.3 2.4 2.5…

5. 6. 7 FIRST START UP 47 4.1 4.2 49 49 ELECTRIC CONTROLS CONTROLS OF REFRIGERATION CIRCUIT OPERATION WASHING, CLEANING, AND DISINFECTION 54 5.1 5.2 5.3 5.4 WARNINGS OUTFIT TO USE FOR EXECUTING CLEANING OPERATIONS DISPOSING THE WASTE MATERIALS USED FOR CLEANING OPERATIONS CLEANING METHOD MAINTENANCE…

GENERAL INFORMATIONS 1.1 CE DECLARATION OF CONFORMITY 1 The series H and W 1 air conditioners that are the object of this declaration shall be installed and used according to the terms provided for in this «Installation and maintenance handbook», which are supplied together with the unit. UNDER…

DECLARATION OF THE MANUFACTURER The series Hand W air conditioners that are the object of this Declaration shall be installed and used according to the terms provided for in this «Installation and maintenance handbook», which are supplied together with the unit. UNDER THESE CONDITIONS ONLY: Shall…

WARRANTY The air conditioners described in this manual are subject to the present warranty terms, which are intended as accepted and automatically subscribed by the Customer when placing the order with TECNAIR LB. The supplier hereby guarantees the correct construction and good quality of the…

rooms, which can be for complete outside air or partially re-circulated air, are standard in cooling

only version and as accessory have heating coil, humidifier and regulating inverters for ventilation. In the following chapters indications of standard components to the machines, and add-ons, are always specified. For the exact composition of the units reference is made to the order confirmation.…

made with plain tubes because the possible fins are dirtied too quickly by the fresh air which in that point is not yet filtered. We empathise that for temperatures lower than –20°C the possibility to install the air conditioner outdoor is excluded. ! Units without heat recovery system version “L”…

1.6.1.3 Operating limits for internal air conditioners with built in water cooled

condenser. ! Water condensers: without pressostatic valve : Entering water temperature between 25 and 40°C ! Water condensers: with pressostatic valve : Entering water temperature between 7 and 40°C 1.6.1.4 Air conditioners with chilled water coils The temperature and humidity limits of the air to…

1.6.2.2 Operating limits for air cooled condensers

1.6.2.2.1 Minimum operating limit: minimum outdoor air temperature ! Axial or radial air condenser with switch and speed variator: minimum external air temperature: -20°C ! Axial or radial air condenser with switch and without speed variator: The speed variator can be installed in the internal…

We empathise that for external winter temperatures regularly lower than –5°C it is necessary to install in the fresh air duct a system for the preheating of the fresh air, controlled by an anti freeze thermostat, by which it is possible to guaranty a raise in the temperature of at least four degrees…

COMPONENTS DESCRIPTION AND OPERATION 2.1 MICROPROCESSOR ADJUSTMENT 2 All the air conditioners are equipped with microprocessor pCO , which controls the temperature, humidity, air flow, and overpressure/depression in the controlled room with regard to the surrounding environment. All working…

Serial RS485 board

ACCESSORY Storage extension ACCESSORY Programming key ACCESSORY 2 Figure 2: functions and components supported by pCO . As for the modes of operation of microprocessor PCO2 please refer to the relevant user manual, code 75802307A.0109, containing all the instructions for the start up, modification…

DIRECT EXPANSION AIR CONDITIONERS OHA - OWA The direct expansion coil air conditioners are all provided with two cooling circuits, with the exception of models OHA 41 and 51 and OWA 41 and 51, which are mono-circuit type. The standard units have an 2 ON-OFF regulation of the cooling capacity…

If the total capacity of the first compressor is enough to work off the room heat, the microprocessor will decrease the output signal to the inverter, and therefore, the inverter will adjust down to the minimum frequency set point. If the room temperature equals the set point plus 100% of the…

The microprocessor activates the first compressor (the injection one) when the room temperature

equals the set point, plus 50% of the proportional band. For example; if the proportionate band is of 2°C and the set point is of 20°C, the first compressor starts when the room temperature feeler measures a 21°C temperature (ref figure 3). In case of a single compressor will startup at 100% of the…

installed downstream the cold one, with winter heating functions and summer post heating. Obviously in case of water coils its necessary that the hot water is retrievable both in summer and in winter. The preheating water coil comes standard in the OH series, as an accessory in the OW series. 2.7.1…

We evidence the fact that the condensing heat is overabundant for the treatment of all fresh air,

therefore in this case it’s necessary to provide the accessory for the regulation of the cooling circuits capacity. In case of nearly total recirculation (max 20-25% fresh air) as in the majority of cases of clean room air conditioners OW series, the heat pump heating can be used even without the…

For both series OH and OW units the fans, internal to the front panels, are protected by a safety

grille for the safety of the operator. 2.10 AIR FILTRATION 2.10.1 Surgical room air conditioners with heat recovery system: OH…HR The fans and the filters are located as shown in fig. 4 Figure 4: surgical rooms air conditioner with heat recovery Alternative filters In alternative to the G4 filter on…

Figure 5: surgical room air conditioners without heat recovery

Alternative filters In alternative to the G4 filter on the fresh air suction it is possible to install a F5 or an F7 filter. On the air discharge towards the controlled room it is possible to install a F9 or an H12 filter. In case of an H12 the maximum capacity will be a bit smaller. 2.10.3 Clean…

2.11 CONTROLLING THE AIRFLOW QUANTITY TO THE ROOM

2.11.1 Surgical room air conditioners OH series The regulation of the airflow is entrusted, through the microprocessor, to an inverter that controls the number of revolutions of the air-discharge fan based on two parameters; set airflow and filter clogging level. The required airflow can be set…

This system guaranties a good control of the capacity even if the number of rooms to be controlled

varies and acts as a correction of the reduction of capacity due to the progressive dirtying of the filters upstream the measuring point (the ones inside the unit). It is not anyway able to control the dirtying of the filters downstream the measuring point. It is therefore necessary that the filters…

frequency of the air exaust fan in order to increase or decrease the pressure of the surgical room. The inverter varies the feeding frequency of the fan in direct proportion to the tension signal from the microprocessor: increasing/decreasing tensions correspond to increasing/decreasing frequencies…

The regulating system for the installation is therefore a bit more complicated because of this need to act indirectly. It is therefore suggested to proceed as follows: - Hypotise a loss of capacity for the system, downstream the unit, with all the units operating and with clean filters. - Insert as…

installed by the client between the controlled environment and a reference one. The microprocessor

compares the received signal from the pressostat with the previously set pressure set point and, if the overpressure is not reached, acts, according to the unit type, like we are going to explain. 2.12.3.2.1 Overpressure control for totally fresh air operating clean room air conditioners Clean room…

time. This is in fact a necessary condition for a good control of the air quality within the controlled room. To do this it is therefore necessary that the two motorized dampers are of identical sizes. On the extracted air mouth a modulating motorized damper is installed dimensioned for 25% of the…

The functioning of the heat recovery system depends on the value of temperatures outdoor airT, return airT, and supply airT:  SUMMER FUNCTIONING The condition outdoor airT > supply airT is normally verified. If the condition outdoor airT > (return airT + ∆ ) is verified too, where ∆ is a parameter…

The frequency of cylinder replacement is in direct proportion to the water hardness, because of the

increase in scale; therefore, we suggest monitoring constantly the condition of the cylinders and make sure that all the operations described in chapter Routine maintenance are executed The following table provides a merely QUALITATIVE description of what may happen when the water conductivity and…

2.14.2 Condair ESCO steam distributor

The microprocessor controls the humidification by controlling the servomotor of a valve through a 010Volt signal. Based on the signal from the microprocessor, the servomotor opens or closes the valve in proportion to the deviation of the ambient humidity value with respect to the set point. For…

dehumidification. 2.16 DIFFERENTIAL PRESSURE SWITCHES FOR CLOGGED FILTER INDICATION The air conditioners produced by Tecnair LB are all equipped with differential pressure switches for measuring the pressure difference before and after the suction, discharge, and return filter. The microprocessor…

INSTALLATION 3.1 TRANSPORT During site handling, the unit shall be lifted and transported by a lift truck. The forks shall be inserted as shown in the appropriate drawing handed over to the forwarder; failing the lift truck, pass two ropes under the pallet on which the air conditioner rests.…

ELECTRICAL CONNECTIONS The external electrical connections of the air conditioner must fulfil the following requirements: ! They shall be sized to support the maximum load in Ampere indicated in the electric wiring diagram and on the identification label placed inside the control section of the…

If the feeding water comes from a well or a river, two filters shall be installed in parallel, one of them as backup, with features conforming to the type of water used, to prevent the condenser from getting clogged due to impurities in the water. Mainly in case of presence of a double floor, the…

Mainly in case of presence of a double floor, the use of the “Water alarm” option is recommended, so

to have the possibility to close two solenoid valves installed on the hydraulic pipes and avoid room flooding due to an emergency or a break down of any component of the installation. Otherwise the installation of two manual shut off valves in a very accessible position is mandatory 3.8 HYDRAULIC…

3.10 FRIGORIFIC CONNECTIONS

Type copper for diameters up to 26 - 28, hard-drawn Gelidus-type copper for larger diameters. To prevent copper dust or off-cuts from getting into the pipes, they shall not be cut with an arm saw, but only with a link pipe cutter; then, the pipe ends shall be thoroughly cleaned. If the pipe ends…

3.10.2 Lines connecting a unit with a remote condensing unit

RETURN (SUCTION) LINE: It runs from the valve on the direct expansion coil output, and therefore from the unit output, to the remote condensing unit. Its working temperature is approx. 5°C; it needs to be insulated to prevent condensation. LIQUID LINE: It runs from the output valve on the remote…

3.12 LINES DIAMETERS FOR COOLING CONNECTIONS

The following diagrams – relating to 5°C evaporation temperature and 45°C condensation temperature – allow easily dimensioning the suction, fluid, and discharge cooling pipelines. Given the cooling capacity of the plant and the equivalent length of the line in question, the graphs permit to go back…

Figure 15: diagram for refrigerant pipeline dimensioning

Figure 16: diagram for discharge line dimensioning. Anyway, the following table can be use instead of the previously described method. It illustrates the diameters suggested for discharge, refrigerant, and suction pipelines, as a function of the size of the different units (expressed by the coding…

The table considers only two equivalent lengths for pipelines; for a more accurate dimensioning, you

can certainly use the diagrams above, which are generally valid. Compressor Unit size Nom.hp 2 3 3,5 hp 5 hp 6,5 hp 7,5 hp Rating Kw Discharge Liquid Pipeline: 15 to 30 equiv. m Suction Discharge Liquid 12/14 14/16 14/16 16/18 16/18 20/22 20/22 26/28 26/28 10/12 10/12 10/12 10/12 10/12 14/16 14/16…

Liquid line

Remote condensing unit (not supplied by Tecnair; please address to the related technical documentation) In both cases, the replenishment due to the corresponding pipeline inside the air conditioner is null, as this is usually pre-charged during the testing. To know the quantity of refrigerant to…

3.15 INSTALLING

THE DIFFERENTIAL PRESSURE SWITCH IN THE ENVIRONMENT The differential pressure switch to install in the air-conditioned environment is fundamental, as it sends microprocessor the continuous reading of the ambient pressure, and therefore it enable the microprocessor to execute the operations needed to…

Figure 21: Mounting the differential pressure switch in the room

Figure 22: Mounting the differential pressure switch in the surrounding environment. Figure 23: Mounting the body of the pressure switch in the false ceiling of the room . Anywhere you decide to install the differential pressure switch, it is essential that: The tube with free end is connected with…

The pressure switch is installed not less than two metres over the floor, so as to be more protected

against possible deposits of dust. Concerning the electrical connections, the pressure switch receives two terminals: the feeding one (+24V) and the outgoing signal (4-20mA). The cable (AWG24 screened type – not supplied by Tecnair LB) shall be connected with the unit according to the respective…

is not provided by Tecnair. At the two ends of the cable even the ferrite, provided with the unit, must be applied with the 2 nd terminal (refer also to the PCO2 manual). The second terminal can be either wall- or panel-mounted (see figures 25 e 26). As to the panel installation, the dimensions of…

3.17.1.1 Standard positioning

Temperature and humidity feeler positioned in the suction section directly downstream the G4 filter. This position has the advantage of being installed in the factory, wired and tested with the unit. The feelers also are well protected from possible damages. The inconvenient is that it feels the…

The feeler must be connected to the µP of the unit by a cable which must travel through ducts

3.17.1.4 Temperature and humidity feeler standard provided and installed in the resuction duct of the room The characteristics of this installation are the same as those in paragraph 2.15.1.3. The advantage is that the feeler is protected form shocks. The disadvantage is that it becomes difficult to…

4 FIRST START UP

Before proceeding to the commissioning madae by Tecnair LB’s technicians, it is mandatory to follow the instructions indicated in the following sheet (direct expansion units) Surgical rooms and clean rooms with frigorific circuit; OHA and OWA models. or with chilled water coil; models OHU and OWU…

Verification electrical feeding

5.1 Verification of the connection of the three phases, neutral and ground connection. 5.2 Verification that the feeding line has a tension tolerance of +/- 10% 6. Verification of the hydraulic connections 6.1 Verification the conformity of the entrance and exit of the cold and hot feeding. With the…

ELECTRIC CONTROLS Before proceeding with the operations it is necessary to check that power connections have been carried out correctly and that their operational level are in optimal conditions. Then it is recommended to control that every screw of the terminals are accurately tightened down, both…

1. refrigerant charge of the circuit;

2. Evaporating pressure; 3. Condensing pressure; 4. Overheating of the suction line; 5. Sub cooling of the liquid line; 6. unclogging (if clogged) of the fluid line filter 7. Compressors power input; 8. High pressure switch good operation; 9. Low pressure switch good operation; 10. Operating…

For good operation of the frigorific circuit, the condensing pressure must be as constant as possible. A low condensing pressure causes low evaporating pressure with a consequent high dehumidification; too high condensing pressure is causes a low efficiency of the frigorific circuit and high…

If the overheating is less than 4 °C it means that

! Thermostatic valve is too open or defective; to close it proceeds as already seen by rotating clockwise the control shaft. ! Air filter is dirty or the coil is clogged ! Fans are defective, wrong revolution 4.2.5 LIQUID REFRIGERANT SUBCOOLING CONTROL Liquid refrigerant leaving the condenser is at…

automatically when the pressure is 2.5bar. If at 0.7bar the pressure switch has not intervened, stop

immediately the unit and replace it. NOTE On starting the compressor, the low-pressure switch is delayed by 180 seconds. 4.2.10 Temperature of the compressor control Temperature of the top of the scroll compressor must be about 60/70°C; temperature of the bottom must be about 25 - 30 °C. If…

WASHING, CLEANING, AND DISINFECTION

5.1 WARNINGS Before initiating any cleaning operation, it is indispensable to read carefully the following preliminary instructions and fully understand their content. All cleaning operations shall be executed observing such directions, as any improper procedure may cause serious damages to the…

A clean overall

Protection goggles Latex gloves (during cleaning and disinfections operations on the operating compartment, the gloves shall be replaced as soon as they get dirty). Antiseptic half-mask respirator Top footwear Once the cleaning operations have been terminated, all the clothes used for these…

month, when washing and disinfecting the operating compartments, or any time it is opened for maintenance operations, this compartment shall be cleaned following the specific procedure described in this handbook. OPERATING COMPARTMENTS: containing the parts in which the air treatment occurs. This…

Clean the internal walls with an alcoholic solution avoiding moistening the shutter washer. This

operation shall be executed from the top to the bottom. Clean the shutter washer with a wet cloth. Dry scrupulously the internal walls and washer with a dry and clean cloth. Close the shutter, taking care not to damage the washer. If the operating compartments do not need to be washed and…

Dismount the shutters of the operating compartments by turning the appropriate key

Dismount the filters on the unit (G4-class filter on the air return, G4-class post-filter on the outdoor air suction, and G7-class post-filter on the air discharge). The dismounted filters shall be put into hermetically sealed containers, and then disposed of following the same procedure as for the…

Clean and disinfect the supply air fan, turning the runner by hand until it is completely washed

On the humidification system. On all the pipelines running inside the compartment. On the condensate discharge bac. On the internal walls of the compartment, acting from the top. On the bottom bac. Rinse abundantly the internal parts of the right-hand operating compartment by atomising sterilised…

MAINTENANCE 6.1 FILTER MAINTENANCE The filters must be replaced whenever the relevant alarm asks for cleaning. The filter clogging can be foreseen by checking the frequency of the request for cleaning. This way, this operation can be executed during the normal unit stops, so avoiding interrupting…

Humidity feeler: re-adjust it, as necessary. Do not use any compressed air or solvents for cleaning the feeler sensor!! If the unit is disabled, we suggest draining all the water in the cylinder. The steam production cylinder must be replaced whenever the lime scales inside the cylinder itself…

7 INVERTER 160 SSC

The air conditioner of the “H” series produced by Tecnair come standard equipped with an inverter on the supply fan and on the expulsion for the control of the air capacity necessary to guaranty the necessary air change in the environment and for the control of the overpressure/depression in the…

7.1.3 FUNZIONI DEL MODULO CON TASTIERA DI PROGRAMMAZIONE

Figure 30: Program Keypad Module. Parameter Number Display Indicates which Display or Program Group parameter is active. Program Mode Flashes when in program mode. Parameter Value/Fault Number Displays the parameter value or fault code number. Escape The ESCape key allows you to toggle between the…

This function is only active when P46 - [Input Mode] is set to 2. When active, pressing

this key causes the motor to ramp down to 0 Hz and then ramp up to its set speed in the opposite direction. When the motor is running, pressing this key causes the (currently illuminated) LED to flash, indicating motor rotation while decelerating to zero. The other LED will illuminate indicating the…

Cambiare il valore del parametro selezionato con i tasti freccia su/freccia giù. Tenendo continuamente premuto uno dei due tasti il valore aumenta o diminuisce più velocemente When the desired value displays, press the Enter key. This writes the new value to memory. The Program Mode Indicator will…

Start Stop Run Reverse 1 Run Forward Stop Run Reverse 2 N/P Stop N/P 3 Run Forward Stop Run Reverse 0 = Accel.2 / 4 Run Forward 0=Positive analog input 5 Decel.2 0 = Accel.1 / Run Reverse Decel.1 Run Forward Coast to Rest Stop Run Reverse 0=TB3 control 6 1= Negative analog input Run Forward 7 Run…

Stop Mode Select Determines stopping mode used by the drive when a stop is initiated.. 0/3 Base Frequency Set value to rated nameplate frequency of motor.. 10/240 Hz 50 Hz 50 36 Base Voltage Set value to rated nameplate voltage of motor.. 230/460 V 20 V + Nominal input voltage 380/400 (dipende…

Internal Frequency When P59 is set to a 1, this parameter will provide the drive frequency command.This parameterwillchangethe frequencycommandin“Real time” using the up/down arrow keys. Maximum value is set in P33. Once the desired command frequency is reached, the Enter key must be pressed to…

Compensation 79 [Software Current Trip] 80 Stall Fault Time 81 (1) 82 (1) 83 (1) 84 (1) PI Proportional Gain PI Integral Gain PI Process Reference PI Dead Band (1) (2) 0 No compensation. 1 Some drive/motor combinations have inherent instabilities which are exhibited as non-sinusodial motor currents.…

When a fault occurs, the cause must be corrected before the fault can be cleared. After corrective

action has been taken, any of the following actions will clear the fault. • Press the Program Keypad Module’s Stop button. • Disconnect power to the drive, wait one minute, reapply power. • Cycle the input signal at TB3-8 to the drive. • Set P54 - [Clear Fault] to 1. Included is a list and…

Phase V Fault A phase to ground fault has been detected between the drive and the motor in phase V. Check the wiring between the drive and the motor. Check the motor for a grounded phase.. 40 Phase W Fault A phase to ground fault has been detected between the drive and the motor in phase W. Check…

8. TROUBLE ANALYSIS

The following chapter aims at assisting the operator in searching possible troubles in the unit equipment. Starting from the type of problem in question, indication is given of the possible sequential causes of the trouble itself and the possible remedies. The description of the causes is general…

«A», «E» AIR CONDITIONERS – COOLING CIRCUIT PROBLEMS HIGH PRESSURE BLOCK AIR COND.. TOO LOW AIRFLOW TO CONDENSER CHECK FOR POSSIBLE CLOGGING ON THE COIL WATER COND. TOO HIGH INLET AIR TEMPERATURE TAKE THE WATER TEMPERATURE EXCESS. CHARGED COOLING CIRCUIT NON FUNCTIONING OF THE FAN ELIMINATE POSSIBLE…

LOW PRESSURE

BLOCK DISCHARGED COOLING CIRCUIT DEFECTUOUS THERMOSTATIC VALVE SEARCH THE LEAKAGE, THEN RESTORE REPLACE THE BELLOW CLEAN AIR FILTERS LOW AIR FLOW IN THE EVAPORATOR LACK OF COMPRESSION LOW CONDENSATION PRESSURE CHECK THE CONDENSATION CONTROL SYSTEM CHECK THE AIR CIRCUIT, THEN RESTORE THE ORIGINAL…

«U» AIR CONDITIONERS – HYDRAULIC CIRCUIT PROBLEMS NON COOLING AIR IN THE CIRCUIT TOO HIGH WATER TEMPERATURE AT THE EVAPORATOR OUTLET CHECK AND ELIMINATE THE AIR IN THE CIRCUIT CHECK THE CHILLER AND BRING THE TEMPERATURE BACK TO DESIGN CONDITIONS CHECK THE ELECTRONIC CARD NON OPENING OF THE THREE-WAY…

8.3 HEATING SECTION PROBLEMS

HEATING HOT GAS REHEATIN G WATER TYPE ELECTRIC TYPE NON REHEATING NON HEATING NON FUNCTIONING OF THE SERVOCONTRO MAGNETOTHERMIC SWITCH INTERVENTION THERMOSTATIC SWITCH INTERVENTION CHECK FEEDING AND MODULATING SIGNAL SHORT-CIRCUIT OR EARTH HEATER HIGH TEMPERATURE DUE TO LOW AIRFLOW TOO LOW WATER…

8.4 HUMIDIFIER PROBLEMS

SHORTCIRCUITED CYLINDER NON WATER CHARGING LACK OF TENSION IN CHARGING SOLENOID FAILURE OF THE CHARGING VALVE SOLENOID CHE CK THE HUMIDIFIER‘S ELECTRONIC CARD DISCONNECT AND REPLACE THE SOLENOID LACK OF WATER TOO FULL CYLINDER TOO CONDUCTIVE WATER MAGNETOTHERMI C SWITCH INTERVENTION PROVIDE A…

CONTINUOUS

WATER DISCHARGE TOO FULL CYLINDER DUE TO MAGNETOTHERMIC SWITCH INTERVENTION FOAM IN THE CYLINDER MANUALLY DISCHARGE AND RESTORE THE MAGNETOTHERMIC SWITCH MANUALLY DISCHARGE THE CYLINDER LACK OF BOIL TOO FULL CYLINDER DUE TO LOW WATER CONDUCTIVITY OPEN DISCHARGING VALVE DISC PUT SALT IN THE FILLING…

8.5 DEHUMIDIFICATION PROBLEMS

NON DEHUMIDIFICATIO N DIRECT EXPANS. CHILLED WATER THE COMPRESSOR DOESN’T START UP HIGH WATER FLOW HIGH AIRFLOW CHECK THE CONSENTS ON THE ELECTRONIC CARD BRING BACK TO DESIGN CONDITIONS BRING BACK TO DESIGN CONDITIONS HIGH WATER TEMPERATURE THE VALVE DOESN’T OPEN CHECK FEEDING ON THE HUMIDIFIER’S…

EXCESSIVE

DEHUMIDIFICATION TOO LOW AIRFLOW DIRECT EXPANS. CHILLED WATER TOO LOW EXPANSION TEMPERATURE CHECK BLOCKED FAN CHECK THERMOSTATIC VALVE FUNCTIONING CHECK THE COOLING CIRCUIT FOR RUN-DOWN STATE TOO LOW EXPANSION TEMPERATURE CHECK THERMAL FAN PROTECTION INTERVENTION CHECK FOR TOO LOW CONDENSING…

8.6 FAN PROBLEMS

THERMAL PROTECTION INTERVENTION DUE TO HIGH ABSORPTION LACK OF AIRFLOW FUNCTIONING WITH OPEN SHUTTERS CLOSE THE SHUTTERS CLOGGED FILTERS THERMAL PROTECTION INTERVENTION CLEAN THE FILTERS LOW FEEDING TENSION HIGH AIRFLOW HIGH AIR TEMPERATURE TOO LOW AIRFLOW CHECK THE TENSION FOR GOOD REGULATION BY…

PROTEZIONE

TERMICA VENTILATORE ELEVATO ASSORBIMENTO FUNZIONAMENTO MONOFASE VERIFICARE CONDIZIONI FUNZIONAMENTO (ESPANSIONE CONDENSAZIONE CONTROLLARE LA TBSIONE DI ALIMENTAZIONE BLOCCO DEL FLUSSOSTATO AVVOLGIMENTO IN CORTOCIRCUITO TESTARE AVVOLGIMENTO SE LA MISURA RISULTA FUORI CONTROLLARE CONTINUITA’ DEI…

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