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OPERATION AND MAINTENANCE MANUAL

Wall Mounted 0121…0661

2 (32)

Monobloc Wall Mounted Unit - WMA/WMF 0121-0181-0251-0281-0331-0551-0661 - Rev. 2.0. - Date: 18-07-2000 EN

Before installing or working on the unit, read this instruction manual
carefully. Follow all instructions and safety procedures contained in
this manual and displayed on the unit

Some characteristics of special versions of these units may differ
from those described in this manual.

UNIFLAIR ITALIA S.r.l.

Via dell’Industria, 10

35020 BRUGINE (Padova) Italy

Tel. +39 (0)49 9713211

Fax. +39 (0)49 5806906

Internet: www.UNIFLAIR.com

E-Mail: [email protected]

Release:

2.0

Date:

18 - 07 - 2000

Checked by:

Содержание WMA 0121

Страница 1: ...ted Unit WMA WMF 0121 0181 0251 0281 0331 0551 0661 Rev 2 0 Date 18 07 2000 EN 1 32 OUTDOOR MONOBLOC AIR CONDITIONING UNIT FOR INSTALLATION ON SHELTERS AND PRE FABRICATED BUILDINGS WMA WMF 0121 0181 0...

Страница 2: ...n manual carefully Follow all instructions and safety procedures contained in this manual and displayed on the unit Some characteristics of special versions of these units may differ from those descri...

Страница 3: ...Setting the regulation and safety devices 16 Setting the airflow sensor 17 Setting the dirty filter sensor 17 TECHNICAL DATA 18 General characteristics 18 Electrical characteristics 20 MAINTENANCE 22...

Страница 4: ...All essential components can be inspected and removed from the front with the exception of the damper motor in WMF units from 0121 to 0331 in multiple installations units can therefore be fitted very...

Страница 5: ...w airflow alarm COOLING COIL hydrophilic treated large frontal area manufactured in copper tubing mechanically expanded into aluminium fins stainless steel tray with flexible condensate drain tube ELE...

Страница 6: ...RD for the local network connection of two units LAN CLOCK BOARD RS485 SERIAL OUTPUT for data transmission to a centralised supervision system BLOCKED FILTER ALARM SENSOR consisting of a dirty filter...

Страница 7: ...take on right hand diagram A NORMAL FUNCTION figs 2a and 3a During normal function the damper S is positioned to take in air only from the room arrow on the left closing the external air intake The ai...

Страница 8: ...661 Rev 2 0 Date 18 07 2000 EN MINIMUM QUANTITY OF FRESH AIR It is possible to pre set a minimum opening position on the damper to allow the introduction of a proportion of fresh air in any operating...

Страница 9: ...peration than the common fixed point free cooling systems The microprocessor compares the thermal load present at that moment in the air conditioned environment with the outside temperature calculatin...

Страница 10: ...er of phases and frequency Power absorption of the unit and of the main components Current absorption of the unit and of the main components OA Operating current FLA Full load current LRA Locked rotor...

Страница 11: ...equence LED on the RSF relay are on If the green LED is off disconnect the power supply to the unit and swap two phases of the power supply cable 6 Close the electrical panel cover and tighten the scr...

Страница 12: ...damper position special units 2 levels of password programming setting hardware software configuration RS422 or RS485 serial output optional Clock calendar circuit optional Run hour counter for main...

Страница 13: ...c heating element safety thermostat with re set button under the coil SM Delivery air temperature sensor SE External air temperature sensor ST STU Room temperature or optional temperature and humidity...

Страница 14: ...e RVC e it is controlled by the microprocessor as a function of the condensation temperature read by the SPC condensation pressure sensor The setting done on the user terminal has the following standa...

Страница 15: ...t make the following settings Room temperature see microprocessor control instruction manual Room relative humidity see microprocessor control instruction manual Dirty filter differential pressostat s...

Страница 16: ...et the pressostat simulate a fan fault stop the fan or one of the fans if multiple check that the pressostat intervenes if the pressostat does not intervene gradually increase the setting until it doe...

Страница 17: ...s Potenza totale kW 2 6 4 4 4 6 Total power VENTILATORI sez RICIRCOLO Portata d aria nominale l s 344 406 622 622 742 Nominal airflow raffreddamento meccanico m h 1240 1460 2240 2240 2670 mechanical c...

Страница 18: ...LATORI sez RICIRCOLO Portata d aria nominale l s 1270 1270 l s Nominal airflow raffreddamento meccanico m h 4580 4580 m h mechanical cooling Portata d aria nominale l s 1200 1200 l s Nominal airflow f...

Страница 19: ...m h 4350 4350 Air flow 100 Pa l s 1139 1139 m h 4100 4100 Air flow 150 Pa l s 1067 1067 m h 3840 3840 1 Without delivery and intake grilles clean filters no electric heater or re heat FREE COOLING 1...

Страница 20: ...CYCLE mm FUS VOLT kW L1 L2 L3 VOLT kW L1 L2 L3 WM 0121 C 1 5 30A 230 1ph 50 1 21 5 5 0 0 230 1ph 50 0 13 0 6 0 0 WM 0221 C 1 5 30A 230 1ph 50 1 9 8 6 0 0 230 1ph 50 0 23 1 0 0 0 WM 0251 C 2 5 40A 230...

Страница 21: ...temperature and noise levels of compressor and fans check the air filters clean or change the filters when the dirty filter alarm comes on check the flow of condensate to the drain check whether the c...

Страница 22: ...be used without the pre filter installed Fig 7 N F CLEANING THE CONDENSER If the fins of the condenser coil are obstructed remove all foreign bodies leaves seeds dead animals etc with compressed air C...

Страница 23: ...tray and use a use a jet of water ADJUSTING THE REFRIGERANT CHARGE The unit s refrigerant circuit is supplied already charged with R22 or R407C Check the type of refrigerant to use on the data plate...

Страница 24: ...t the super cooling of the liquid at the intake of the thermostatic valve is between 3 and 5 C less than the condensation temperature reading on the manometer scale and that the superheating of the va...

Страница 25: ...gramming of the control PROBLEM POSSIBLE CAUSE CHECK REMEDY NO POWER A No power to the unit electrical panel and or no power to the auxiliary circuit 1 Check that power is on and the unit main switch...

Страница 26: ...instruction manual Electric heater does not work 1 Check electric heater operation 2 Check electric heater power supply 3 If there is a heater alarm remove the cause and re set the safety thermostat...

Страница 27: ...the flow sight glass supercooling of the liquid is high Evacuate the refrigerant circuit and re charge B Airflow is insufficient or air in the remote condenser is too warm 1 Check fan operation and ro...

Страница 28: ...E PRESSURE A Room temperature is too low See ROOM TEMPERATURE IS TOO LOW and formation of frost in the coil B Air flow is too low or absent SEE LOW AIR FLOW C Refrigerant filter is blocked Check the r...

Страница 29: ...e absorption of the three phases B Motor overload Check that the unit is functioning within the pre set limits C Power supply voltage is too high or too low Check the unbalance between the phases of t...

Страница 30: ...e damper is excessive recalibrate the minimum openingritarare Cfr mP20 W instruction manual 3 the main board receives a wrong command of damper opening only units with external control systems CDC ROO...

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