EVAPCO ATC-E Maintenance Instruction

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MAINTENANCE INSTRUCTIONS

Closed Circuit Coolers and Evaporative Condensers

ATC-E / eco-ATC

eco-ATWE

ATW / eco-ATW

EVAPCO, Inc. (World Headquarters) P.O. Box 1300, Westminster, Maryland 21158 USA

EVAPCO Europe

bvba

Heersterveldweg 19

Industrieterrein Oost

3700 Tongeren, Belgium

Phone: (32) 12 395029

Fax: (32) 12 238527

evapco.europe@evapco.be

REDUCED EUROPEAN

For EVAPCO Induced Draft and Forced Draft

LSWA(-H) / LSCE

For EVAPCO Authorized Parts and Service,

Contact Your Local Mr. GoodTower

or the EVAPCO Plant Nearest You

The full version of the Maintainance Instructions 116-E, is available for download at:

www.evapco.eu

EVAPCO Products are Manufactured Worldwide

Phone (410) 756-2600 - Fax (410) 756-6450

EVAPCO Europe S.r.l.

EVAPCO Europe A/S

Via Ciro Menotti 10

Knøsgårdvej 115

I-20017 Passirana di Rho

DK-9440 Aabybro,

Milan, Italy

Denmark

Phone: (39) 02 9399041

Phone: (45) 9824 49 99

Fax: (39) 02 93500840

Fax: (45) 9824 49 90

evapcoeurope@evapco.it

info@evapco.dk

LRW(-H) / LRC

ESW4

EVAPCO Europe GmbH

Insterburger Straße, 18

D-40670 Meerbusch,

Germany

Phone: (49) 2159-6956-0

Fax: (49) 2159-6956-11

info@evapco.de

Bulletin 116R-E Metric

PMCE/Q

Service Provider

EVAPCO M. East DMCC

Reef Tower, 29th level

Cluster O,

Jumeirah Lake Towers

PO Box 5003310

Dubai, U.A.E.

Phone: (971) 56 991 6584

info@evapco.ae

PHC-E

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Page 1 The full version of the Maintainance Instructions 116-E, is available for download at: www.evapco.eu EVAPCO Products are Manufactured Worldwide EVAPCO, Inc. (World Headquarters) P.O. Box 1300, Westminster, Maryland 21158 USA Phone (410) 756-2600 - Fax (410) 756-6450 EVAPCO Europe EVAPCO Europe S.r.l.
Page 2 Congratulations on the purchase of your EVAPCO evaporative A clean and properly serviced unit will provide a long service cooling unit. EVAPCO equipment is constructed of the highest life and operate at peak efficiency. quality materials and designed to provide years of reliable If you should require any additional information about the service when properly maintained.
Page 3: Installation Precautions
WARNING: In order to avoid excessive pressure, proper safety valves should be foreseen in the cooling installation. These safety measures are not delivered by Evapco and are the responsibility of the customer/contractor. The application of these safety measures has to be evaluated for the cooling system as a whole and not limited to the partly completed machinery.
Page 4: Initial Storage And/Or Idle Period Recommendations
These 9. Turn the fan(s) and pump(s) by hand to insure it turns items must be flexibly attached to the EVAPCO unit so as not freely without obstructions. to transmit additional loads to the equipment as a result of 10.
Page 5 Control the leaving fluid temperature (closed circuit coolers) EVAPCO recommends a minimum of 25% inhibited glycol or condensing temperature (evaporative condensers) by to minimize corrosion.
Page 6: Fan System - Capacity Control
(VFD’s). Most EVAPCO units are supplied with extended grease lines to allow easy lubrication of the fan shaft bearings as shown in Note: for the eco-ATW with Sage and eco-ATWE with Sage Table 1.
Page 7: Two Speed Motors
Select a high quality VFD that is compatible with the fan motor(s) in the EVAPCO unit(s). Many variables in the VFD configuration and installation can affect motor and VFD performance. Two particularly important parameters...
Page 8: Recirculated Water System - Routine Maintenance
Operation and Maintenance Instructions Variable Frequency Drive Lock-out Notification Sequence of Operations / Guidelines for Multi-fan Units with a VFD during Peak Load For eco-ATWE, see Sage /Sage control Panel O&M: WARNING: Qualified personnel should use proper care, 1. Both fan motors off – Pump running on one cell. procedures and tools when maintaining the Fan/Drive System in order to prevent 2.
Page 9: Drift Eliminators
Operating Water Level* Operating Water Level* Closed Circuit Cooler Footprint Model Number (inch) (mm) ATC-E Products ATWB, eco-ATW & eco-ATWE Products 50E to 165E, 3’ and 4’ wide units** 9” 170E to 3714E 8.5’ wide to “7’ wide thru 24’ wide”...
Page 10 The ZM II spray nozzles do not need to ® Contact Evapco in case of damage to the pressure vessel. be oriented a specific way to achieve proper coil coverage. Do not affect the integrity of the pressure vessel without approval of Evapco.
Page 11: Water Chemistry Parameters
Water Treatment and Water Chemistry passivation period is a critical time for maximizing the service life of galvanized equipment. EVAPCO recommends that the Proper water treatment is an essential part of the maintenance site specific water treatment protocol includes a passivation required for evaporative cooling equipment.
Page 12: Air Contamination
Evapco does not recommend the routine use of acid due to entering the building’s air system. the destructive consequences of improper feeding; however, if acid is used as part of the site specific treatment protocol, Cold Weather Operation &...
Page 13 Evaporative Condenser Closed Circuit Cooler Inlet Pres- Inlet Pres- Model Number Footprint sure (psi) sure (kPa) ATC-E Products eco-ATC-A Products ATWB, eco-ATW & eco-ATWE Products 50E to 165E 122A to 263A 3’ and 4’ wide units** 13.8 170E to 247E 160A to 326A 8.5’x7.5’...
Page 14 Operation and Maintenance Instructions Freeze Protection of Closed Circuit Cooler Coils to allow the water to flow quickly from the coil. This method of protection should be used only in emergency situations The simplest and most effective way of protecting the heat and is neither a practical nor recommended method of freeze exchanger coil from freezing is to use an inhibited ethylene protection.
Page 15: Unit Accessories
The recirculating pump is idle. EVAPCO units built for remote number of start/stop cycles must be limited to no more sump operation do not include recirculating water pumps.
Page 16 For more information on cold weather operation, please download a copy of EVAPCO’s Engineering Bulletin 23 at evapco.com Ice Management When operating an evaporative cooling unit in extreme ambient conditions, the formation of ice is inevitable. The key to successful operation is to control or manage the amount of ice that builds up in the unit.
Page 17: Maintenance Checklist
Operation and Maintenance Instructions MAINTENANCE CHECKLIST PROCEDURE JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1. Clean pan strainer – monthly or as needed 2. Clean and ﬂush pan** – quarterly or as needed 3. Check bleed-off valve to make sure it is operative – monthly 4.
Page 18 Operation and Maintenance Instructions OPTIONAL ACCESSORIES JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 1. Gear Reducer – Check oil level with unit stopped - 24 hours after start-up & monthly 2. Gear Reducer/Piping – Do visual inspection for oil leaks, audi- tory inspection for unusual noises and vibrations - monthly 3.
Page 19: Seasonal Shutdown Checklist
Operation and Maintenance Instructions Seasonal Shutdown Checklist When the system is to be shut down for an extended period of time, the following services should be performed. The evaporative cooling unit cold water basin should be drained The cold water basin should be flushed and cleaned with the suction strainer screens in place.

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EVAPCO ATC-E Maintenance Instruction

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