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INSTALLATION, OPERATION &

MAINTENANCE INSTRUCTIONS FOR:-

SERIES ENVIROFRESH

AIR HANDLING UNITS

CONTRACT No :

PROJECT REF :

AIR HANDLERS LIMITED.

Alfred Proctor House, Bute Street

Weaste, Salford, M50 1DU

TEL :- 0161 745 8888 FAX :- 0161 925 9900

mailto:[email protected]

Содержание Envirofresh Series

Страница 1: ...ANCE INSTRUCTIONS FOR SERIES ENVIROFRESH AIR HANDLING UNITS CONTRACT No PROJECT REF AIR HANDLERS LIMITED Alfred Proctor House Bute Street Weaste Salford M50 1DU TEL 0161 745 8888 FAX 0161 925 9900 mai...

Страница 2: ...electric motor s the procedure as laid down in this manual is fully carried out The procedure for removing and replacing timing wedge belts and filter media bags or panels are fully carried out as la...

Страница 3: ...also essential for service and maintenance purposes and for the removal of the motor s INSTALLATION All units must be installed in accordance with good engineering standards upright and levels on a p...

Страница 4: ...ed to prevent damp and ingress of dust or foreign bodies and held in a dry store Fan Shaft Bearings Refer to Bearing damage in Cautionary Notes Bearings fitted with shields should not be stored for pe...

Страница 5: ...ation drive belts should be checked for tension and re tensioned if required Maintenance At least every 12 months a major inspection of the fan section should be carried out as follows Isolate electri...

Страница 6: ...motors are shipped with sufficient grease for a long operating period if relubrication is needed using a low pressure hand operated grease gun pump in clean recommended grease until the new grease app...

Страница 7: ...et the lower marker ring at the deflection distance required in mm on the lower scale Set the upper marker ring against the bottom edge of the tube Place the belt tension indicator on top of the belt...

Страница 8: ...n bends of the coil Damage to fins can be corrected by use of a fin comb available from Air Handlers all coils should be installed level and upright unless otherwise specified Care must be taken to en...

Страница 9: ...um breakers must be installed between the coil and the trap inlet to ensure that the hydraulic head drain the coil when it is at atmospheric or sub atmospheric pressure The vacuum breaker should respo...

Страница 10: ...ot twisted by ductwork and that fixings do not penetrate cog housing of the damper which will affect the damper mechanism Ductwork must be independently supported and should not be left to hang from t...

Страница 11: ...rried out This should generally be carried out at least every six months and a service inspection sheet issued to the customer upon completion Log books should be kept on site by the end user to prove...

Страница 12: ...pproval of AIR HANDLERS LIMITED Damage caused to equipment on site through lack of adequate protection from the elements or misuse by other trades Failure to observe all normally accepted engineering...

Страница 13: ...S manifold and compare them with the commissioning sheet If there is any significant variation then the fault should be found and corrected Refer to the troubleshooting chart If on inspection of the r...

Страница 14: ...k isolator mains supply Check settings Inspect fireman s panel Check actuator operation and end switch making when open Check control switch fuses MCB s and control circuit wiring Inspect drive belts...

Страница 15: ...mpressor section Check operation and settings Check operation and settings of the indoor frost protection stat Check fan runs on to dissipate heat prior to unit shut down Replace if faulty and reset h...

Страница 16: ...d control circuit wiring Step energised on controller Check air flow failure switches Check delay timer operation check controller timer operation Change compressor Check winding resistance replace co...

Страница 17: ...or internal leak Icing coil Low on refrigerant Indoor check valve leaking Outdoor check valve not fully open Icing coil Low on refrigerant 4 port valve not fully engaged or internal leak Outdoor chec...

Страница 18: ...it is the installers responsibility to ensure correct lagging Installers Responsibility Installation Unless otherwise specified by ourselves this product is supplied with the intention to be incorpor...