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©2013 EVAPCO Europe

Bulletin 116R-E Metric 0322

Operation and Maintenance Instructions

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Содержание ATC-E

Страница 1: ...Box 1300 Westminster Maryland 21158 USA Phone 410 756 2600 Fax 410 756 6450 EVAPCO Europe bvba Heersterveldweg 19 Industrieterrein Oost 3700 Tongeren Belgium Phone 32 12 395029 Fax 32 12 238527 evapc...

Страница 2: ...A lock out tag out procedure integrated with the Process Control System must be foreseen by the customer A lockable disconnect switch should be located within sight of the unit for each fan motor ass...

Страница 3: ...could potentially cause damage to plastic components Label on the coil section s WARNING Do not operate the pressure vessel at service conditions outside of the PED nameplate located at the coil conne...

Страница 4: ...d minimum speeds and for recommendations on locking out resonance frequencies 5 Verify that a water treatment plan has been implemented including passivation of galvanized steel units See Water Treatm...

Страница 5: ...e fully opened before the pumps turn on If the system temperature continues to rise the unit fan is cycled on For a variable speed controller the fans are turned on to minimum speed See the Fan System...

Страница 6: ...38 C Regal R O 220 DTE Oil BB Teresstic 220 All bearings used on EVAPCO equipment are factory adjusted and self aligning Do not disturb bearing alignment by tightening the sleeve bearing caps Fan Bel...

Страница 7: ...if operating below 25 is possible NOTE Pump Motors VFD s should not be used on pump motors The pumps are designed to be operated at full speed and are not intended to be used as capacity control The t...

Страница 8: ...to minimum speed Should vibration inducing frequencies exist the run up and run down test will isolate the resonant frequencies which then must then be locked out in the VFD programming Two Speed Moto...

Страница 9: ...e is a bronze valve connected to a float arm assembly and is activated by a large foam filled plastic float The float is mounted on an all thread rod held in place by wing nuts The water level in the...

Страница 10: ...p When Supplied The pump and pump motor should be lubricated and serviced in accordance with the pump manufacturer s instructions The recirculation pump should not be used as a means of capacity contr...

Страница 11: ...f operation During this passivation period recirculating water pH should be maintained above 7 0 and below 8 0 at all times Since elevated temperatures have a harmful effect on the passivation process...

Страница 12: ...oling equipment can be considered as long as the resultant recirculating water chemistry conforms to the parameters noted in Table 3 It should be noted that using water reclaimed from other processes...

Страница 13: ...10 x24 20 x12 10 x18 10 x36 20 x18 12 x12 12 x14 12 x18 12 x24 12x28 12 x36 24 x12 24 x14 24 x18 24 x24 24 x28 24 x36 12 x20 12 x40 24 x20 24 x40 2 0 2 0 2 0 2 0 3 0 4 0 2 5 2 5 3 7 5 7 3 5 2 5 3 0 2...

Страница 14: ...ith a remote sump is an excellent way of reducing unit capacity at low temperatures Other methods of capacity control include two speed motors VFDs and fan cycling These can be used individually or in...

Страница 15: ...ser during the winter is to run the unit DRY In dry operation the recirculation pump is turned off the basin drained and air passes over the coil Instead of using evaporative cooling to cool the proce...

Страница 16: ...ethod of managing the amount of ice buildup is by cycling the fan motors off while keeping the pump on During these periods of idle fan operation the warm water that is absorbing the building load flo...

Страница 17: ...crape and coat with ZRC annually 10 Lubricate fan shaft bearings every 1000 hours of opera tion or every three months 11 Lubricate fan motor bearings see mfg s instructions Typi cally for non sealed b...

Страница 18: ...robe ends of scale build up quarterly 12 Electronic Water Level Controller Clean inside the standpipe annually 13 Solenoid Make up Valve Inspect and clean valve of debris as needed 14 Vibration Switch...

Страница 19: ...ned at least once a month by hand This can be accomplished by making sure the unit s disconnect is tagged and locked out and grasping the fan assembly rotating it several turns 9 Energize fan motor sp...

Страница 20: ...2013 EVAPCO Europe Bulletin 116R E Metric 0322 Operation and Maintenance Instructions...

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