Uniflair Amico Installation Manual
                                                            | |
Contents
| 
47Setting the air flow sensorThe FS differential pressure switch intervenes if the fan (orone of the fans) stops working.The factory set point of the FS differential pressure switch isat 0.5 mbar (= 50Pa).As the difference in pressure between the suction anddischarge of the fans depends on the air flow, it may benecessary to set the instruments after installation, checkingthat the contact closes when the fans are in operation.To set the FS pressure switch, carry out the following proce-dure:• simulate a fan fault by stopping a fan; check that thepressure switch intervenes;• if the pressure switch does not intervene, graduallyincrease the setting until the pressure switch switchesoff:- using an adjustment screw, set the differential pressureswitch on a scale from 0.5 to 4.0 mbar (from 50 to 400Pa).MAINTENANCEThree-monthly checksCarry out the following checks every three months:• check the power supply;• check the alarm status;• check the working temperatures;• check the correct operation of the local/remote controls;• check air filters, eventual cleaning or replacement;;• check the efficiency of the condensing drain;• check the steam cylinder is clean, replacing it ifnecessary.Six-monthly checksCarry out the following checks every six months:• repeat these checks on a three-monthly basis;• check and clean if necessary the cooling coil;• check the operation of the humidifier (if present: see...)Annual checksCarry out the following checks annually:• repeat these checks on a six-monthly basis;• check the varnish and the nuts and bolts• check the hinges, rabbets and gaskets• check the cables and wiring• tighten the terminal blocks• check and reset if necessary the safety device settings(pressure switches, thermostats, protection devices);• check the operation of the post heating electrical heaters;• check the fittings, operation and absorption of the fan/smotor;• check and if necessary reset the regulation devicessetting;• check and if necessary replace the seal of the hydrauliccircuits/s and tighten the unit couplings;• check and reset if necessary the water regulation valve/valves setting.• ripetere i controlli semestrali.WARNING! Before removing the internalprotection panels, disconnect the power supplyby turning the main isolating switch D5 toposition "O", then wait until the fans stop andthe electrical heaters cool down.Setting the dirty filter sensorsThe PFS differential pressure switch is set according to theloss of load dependent on the dirt inside the filters and the airflow.The PFS differential pressure switch must be set at 3 mbar(=300 Pa).To set the PFS pressure switch, carry out the following pro-cedure:• gradually cover the surface of the air filter and checkthat the pressure switch intervenes when the filter is about50-60 % covered;• if the pressure switch does not intervene, gradually lowerthe setting, if it cuts in too soon, increase the setting:- using a star screw driver, turn the regulation screws ofthe pressure switch to the desired value. |
Related manuals for Uniflair Amico
This manual is suitable for:
manualsdatabase
Your AI-powered manual search engine