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SUMP HEATER PACKAGE

Sump heaters must only operate in the winter to prevent the sump water from freezing, when the water pump(s)

and the fan(s) are shut off.
Under no circumstances should sump heaters operate at other times as they could potentially heat the water to

temperature levels, which are favourable to bacteriological growth. Ensure every six months the heater thermostat

is properly set and clean. Also ensure that control and safety devices, such as low level cut out switches, are

operational, clean and properly incorporated into the control circuit.

CAUTION

Sump heaters can be hot.

BELT TENSIONING

Belt tensioning can be adjusted by changing the position of the fan motor(s) by rotating the motor base adjustment

screw, which extends through the bottom frame angle.
Check belt tension as follows:
1. Shut off fan(s).
2. Rotate the fan sheave half a turn to evenly distribute the tension in the belt before measuring.
3. Check belt tension by verifying both following conditions.

-

The deflection amounts 10 mm / m free belt length (see figure below).

-

The deflection force required is between the minimum and maximum values given in the table below.

CAUTION

Fan has to be blocked while replacing belts.

Fan belt check and adjustment

1.

Fan sheave

2.

Belt

3.

Motor sheave

4.

10 mm/m deflection = proper belt tension

5.

Straight edge

W W W . B A L T I M O R E A I R C O I L . E U

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Summary of Contents for VT0 Series

Page 1: ...VT0 Open Cooling Towers VT1 Open Cooling Tower OPERATING AND MAINTENANCE INSTRUCTIONS MVTv07EN...

Page 2: ...ecognized Codes of Practice such as EUROVENT 9 5 6 ACOP HSC L8 Guide des bonnes pratiques Legionella et tours a ror frig rantes etc Water sampling test results and corrective actions should be recorde...

Page 3: ...uipment integrated in the cooling system may require additions to the table above Contact suppliers for recommended actions and their required frequency 2 Recommended service intervals are for typical...

Page 4: ...mical treatment 12 Passivation 12 Overflow connection 12 4 Cold Weather Operations 13 About cold weather operation 13 Protection against sump water freezing 13 Capacity control 13 5 Maintenance Proced...

Page 5: ...nection 4 Casing 5 Wet deck surface 6 Spray nozzles 7 Spray branches 8 Fan housing 9 Fan screen 10 Forward curved centrifugal fans 11 Air inlet vanes not shown 12 Fan shaft bearings 13 Motor base adju...

Page 6: ...on vibration rails or springs the piping must contain compensators to eliminate vibrations carried through the external pipework The equipment outlet piping must be installed under the operating level...

Page 7: ...rol device steps must be taken to avoid operating at or near to the fan s critical speed For more information consult your local BAC Balticare representative ELECTRICAL SAFETY All electrical component...

Page 8: ...cal applicable laws and regulations If the proper and required access means are not present temporary structures need to be foreseen Under no circumstance can one use parts of the unit that are not de...

Page 9: ...ereafter Moreover there must be an ongoing programme of monitoring in place to ensure the water treatment system is maintaining the water quality within the control guidelines Check and adjustments of...

Page 10: ...sulfates parameters does not exceed 650 mg l for Baltibond SST304L Baltiplus protection pH 6 5 to 9 0 pH during initial passivation Below 8 2 Total hardness as CaCO3 50 to 600 mg l Total alkalinity as...

Page 11: ...down Evaporation loss Cycles of concentration 1 The evaporation loss is not only function of the heat load but also depends on climatic conditions the type of equipment used and the method of capacity...

Page 12: ...mme outside the BAC Water Quality Control Guidelines the BAC factory warranty may be invalidated if the water quality is persistently outside the Control Guidelines unless specific prior written BAC a...

Page 13: ...ar make up water lines should be heat traced and insulated It is necessary to prevent the recirculating water from approaching freezing conditions when the system is operating under load The most crit...

Page 14: ...to protect the pump from running dry in case of make up failure or extreme water loss The status of the alarm can be checked prior to pump start up but should not be considered during the first minut...

Page 15: ...he sediment from re entering the unit system After the basin has been flushed the strainers should be removed cleaned and replaced before refilling the basin with fresh water CAUTION Do not use acid t...

Page 16: ...below Model Operating height measured from pan bottom mm VT0 0312 xxx 340 VT0 0412 xxx 420 VT1 74xx xxx 430 VT1 08xx xxx 460 VT1 10xx xxx 460 VT1 12xx xxx 350 Operating heights The x represents the v...

Page 17: ...e wing nuts of the float ball so that the make up valve is completely closed Before starting the unit for the first time fill the sump till 1 cm below overflow level push float ball under Under normal...

Page 18: ...an be hot BELT TENSIONING Belt tensioning can be adjusted by changing the position of the fan motor s by rotating the motor base adjustment screw which extends through the bottom frame angle Check bel...

Page 19: ...as follows 1 Loosen the lock nuts on the motor base adjusting screws 2 Turn the motor base adjusting screws clockwise to tension the belt or counter clockwise to relieve belt tension During adjustment...

Page 20: ...ng collars can be set using the following procedure See figure below 1 Stop fan s and remove side access panel s 2 Loosen the set screw 3 Using a drift pin centre punch tap the collar in the hole prov...

Page 21: ...tor nameplate and or in the motor terminal box 6 Turn on unit and check amp draw does not exceed nameplate rating If motor is stored it should be in a clean dry place have the shaft rotated occasional...

Page 22: ...s and access doors 3 Inspect the wet deck surface for obstructions damages corrosion fouling 4 After inspection install eliminators and access doors and start pump s and fan s Remove any obstructions...

Page 23: ...n protection It is recommended that the coating be inspected for continuity quarterly or at least every 6 months Any signs of surface corrosion must be treated This involves 1 Removal of the protectiv...

Page 24: ...be greased every 2000 operating hours or at least every six months The bearings should be lubricated with one of the following water resistant inhibited greases or an equivalent which are good for amb...

Page 25: ...equipment and the associated system clean will maintain its efficiency and help to prevent uncontrolled bacteriological growth The recommended cleaning procedures are described below 1 Disconnect fan...

Page 26: ...accordance with a proper procedure and take into account the safety of the cleaning and disinfection staff Typically disinfection is achieved using a sodium hyper chloride solution to maintain a resid...

Page 27: ...ay distribution branch grommets Set of belts Baltiplus Baltibond repair touch up kits Insist on factory authorised parts to avoid loss of efficiency or an operational risk which may occur when non aut...

Page 28: ...ig rantes Minist res de l Emploi et de la Solidarit Minist re de l Economie des Finances et de l Industrie Minist re de l Environnement Juin 2001 54p Voorkom Legionellose Minsterie van de Vlaamse Geme...

Page 29: ...W W W B A L T I M O R E A I R C O I L E U...

Page 30: ...W W W B A L T I M O R E A I R C O I L E U...

Page 31: ...W W W B A L T I M O R E A I R C O I L E U...

Page 32: ...AGE EVAPORATIVE CONDENSERS HYBRID PRODUCTS PARTS EQUIPMENTS SERVICES www BaltimoreAircoil eu info BaltimoreAircoil eu Please refer to our website for local contact details Industriepark Zone A B 2220...

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