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Summary of Contents for EVAPCO Mr. GoodTower EAW-FD Series
- Page 1 for LIFE Operation and Maintenance Instructions For eco-Air Dry, Adiabatic and Spray Fluid Coolers, Condensers & CO Gas Coolers Member of International Institute of Ammonia Refrigeration www.iiar.org...
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Page 2: Table Of Contents
DRY, ADIABATIC AND SPRAY FLUID COOLERS, CONDENSERS & CO GAS COOLERS Table of Contents Introduction 16 Replacement Parts Safety Precautions 17 Replacement Part Drawings eco-Air Flat Coil Configuration with NEMA Fan Motors Terminology eco-Air Flat Coil Configuration with EC Fan Motors Receiving eco-Air V-Coil Configuration with NEMA Fan Motors eco-Air V-Coil Configuration with EC Fan Motors... -
Page 3: Introduction
GAS COOLERS Introduction Congratulations on the purchase of your EVAPCO air cooled unit. EVAPCO equipment is constructed of the highest quality materials and designed to provide years of reliable service when properly maintained. Thoroughly clean road salt, dirt and debris from unit immediately after delivery. Residue left on product surfaces can cause damage that is not covered by any warranty. -
Page 4: Terminology
DRY, ADIABATIC AND SPRAY FLUID COOLERS, CONDENSERS & CO GAS COOLERS Terminology Throughout this manual, the terms “Flat Coil,” “V-Coil,” and “Double Stack” are used. Below is a list of EVAPCO eco-Air product offerings and associated terminology. eco-Air Series equipment includes the following product models: <... -
Page 5: Initial And Seasonal Start-Up And Shut-Down
3. Examine wiring for loose connections or other obvious damage. 4. For units supplied with an EVAPCO control system, refer to The Controller User’s Manual for for motor and controls startup. For units not supplied with controls see motor manufacturer’s and controls manufacturer’s start up recommendations. -
Page 6: Seasonal Shut-Down
3. Switch off the fans and power to the product. Basic eco-Air Series Sequence of Operation NOTE: For units with an EVAPCO control system, refer to The Controller User’s Manual for detailed sequence of operation. System Off / No Load The unit’s fans are off. -
Page 7: Maintenance Instructions
CLEANING HYDRAULICALLY When cleaning the coil hydraulically, EVAPCO recommends using water only. If cleaning products are used ensure that they are compatible with the unit materials of construction. When cleaning with water under pressure, use a power washing device designed for a maximum of 600 psig or less. -
Page 8: Adiabatic Pad Pre-Cooling System - If Equipped
DRY, ADIABATIC AND SPRAY FLUID COOLERS, CONDENSERS & CO GAS COOLERS Adiabatic Pad Pre-Cooling System – If Equipped Adiabatic pad pre-cooling systems are supplied with many dry fluid coolers, CO gas coolers, and condensers to enhance the performance of the unit. The below figure shows the major components of the adiabatic pad pre-cooling system. ADIABATIC WATER DISTRIBUTION SYSTEM WATER... -
Page 9: Operation (Adiabatic Pad Pre-Cooling System)
All connecting piping to the unit MUST be externally supported. The piping on the unit is not designed to bear additional piping weight. EVAPCO recommends visually inspecting adiabatic pads and the distribution system regularly during operation and before seasonal startup. When in operation the pads should be completely wetted (there will be a noticeable color difference). If portions of the pad are not wetted, inspect the water distribution system for clogs. -
Page 10: Spray Pre-Cooling System - If Equipped
(see Figures 2 and 3) includes a water pressure regulator to enable the use of high pressure supply water, up to 140 psig, to be connected. The inlet connection is the highest point on the EVAPCO adiabatic pad and spray pre-cooling systems, allowing for free drainage of water, after the soleniod valve, upon system shutoff. -
Page 11: Water Quality Guidelines (Adiabatic Pad & Spray Pre-Cooling Systems)
Thus, the water quality guidelines shown below are recommended to limit scale build-up and corrosion on the finned tube bundles. In addition to the water quality guidelines shown below, EVAPCO recommends designing the system for a maximum of 200 hours of spray operation per year to help limit the possibility for scale build-up and corrosion. -
Page 12: Maintenance Checklist
DRY, ADIABATIC AND SPRAY FLUID COOLERS, CONDENSERS & CO GAS COOLERS MAINTENANCE CHECKLIST PROCEDURE 1. Check fins for clogging or debris – monthly 2. Check unit for damage – quarterly 3. Check unit for leaks – quarterly 4. Clean the coil(s) – semi-annually 5. -
Page 13: Fan System
DRY, ADIABATIC AND SPRAY FLUID COOLERS, CONDENSERS & CO GAS COOLERS Fan System Fan motors on the flat and V-coil units have permanently sealed bearings; therefore, no lubrication is required. The Double Stack units with NEMA motors require their fan shaft bearings to be lubricated. Be sure to verify any instructions for special motors that have been ordered. -
Page 14: Variable Frequency Drives
The type of motor, manufacturer of the VFD, motor lead lengths (between the motor and the VFD), conduit runs and grounding can dramatically affect the response and life of the motor. Select a high quality VFD that is compatible with the fan motor(s) in the EVAPCO unit(s). -
Page 15: Cold Weather Operation
Cold Weather Operation EVAPCO eco-Air Series air cooled equipment is well suited to operate in cold weather conditions. The lack of required water makes air cooled equipment ideal for low ambient conditions. When the air cooled unit is going to be used during cold weather conditions, several items need to be considered including unit layout, adiabatic pad or spray system water distribution piping (if equipped), and unit heat transfer coils. -
Page 16: Troubleshooting
The following pages contain exploded view drawings of all current EVAPCO eco-Air closed fluid coolers and condensers. Please use these drawings to help identify the major parts of your unit. To order replacement parts, please contact your local EVAPCO representative or Mr. -
Page 17: Replacement Part Drawings
DRY, ADIABATIC AND SPRAY FLUID COOLERS, CONDENSERS & CO GAS COOLERS Replacement Part Drawings eco-Air Flat Coil Configuration with NEMA Fan Motors SCREEN FAN ASSEMBLY TERMINAL BOX NEMA OR CONTROLLER MOTOR (OPTIONAL) MECHANICAL EQUIPMENT SUPPORT COIL CASING PANEL eco-Air Flat Coil Configuration with EC Fan Motors EC FAN ASSEMBLY TERMINAL BOX... -
Page 18: Eco-Air V-Coil Configuration With Nema Fan Motors
DRY, ADIABATIC AND SPRAY FLUID COOLERS, CONDENSERS & CO GAS COOLERS eco-Air V-Coil Configuration with NEMA Fan Motors SCREEN FAN ASSEMBLY TERMINAL BOX OR CONTROLLER NEMA (OPTIONAL) MOTOR MECHANICAL EQUIPMENT SUPPORT COIL INTERNAL STEP DECK (OPTIONAL) INSPECTION PANEL eco-Air V-Coil Configuration with EC Fan Motors EC FAN ASSEMBLY TERMINAL BOX... -
Page 19: Eco-Air Adiabatic Pad Pre-Cooling System Components
DRY, ADIABATIC AND SPRAY FLUID COOLERS, CONDENSERS & CO GAS COOLERS eco-Air Adiabatic Pad Pre-Cooling System Components ADIABATIC WATER DISTRIBUTION SYSTEM WATER BAFFLE SPRAY BRANCH ADIABATIC DISTRIBUTION SPRAY NOZZLE DETAIL B SOLENOID WATER PRESSURE VALVE REGULATOR PRESSURE GAUGE STRAINER HAND ADIABATIC DRAIN VALVE COIL... -
Page 20: Eco-Air Double Stack Adiabatic Cooler With Ec Motors
DRY, ADIABATIC AND SPRAY FLUID COOLERS, CONDENSERS & CO GAS COOLERS eco-Air Double Stack Adiabatic Cooler with EC Fan Motors EC FAN MOTOR ASSEMBLY CONTROL PANEL COIL INSPECTION PANEL eco-Air Double Stack Adiabatic Cooler with NEMA Fan Motors SCREEN ASSEMBLY MECHANICAL POWER EQUIPMENT... -
Page 21: Notes
DRY, ADIABATIC AND SPRAY FLUID COOLERS, CONDENSERS & CO GAS COOLERS Notes... - Page 22 DRY, ADIABATIC AND SPRAY FLUID COOLERS, CONDENSERS & CO GAS COOLERS Notes...
- Page 23 DRY, ADIABATIC AND SPRAY FLUID COOLERS, CONDENSERS & CO GAS COOLERS Notes...
- Page 24 For EVAPCO Authorized Parts and Service, Contact Your Local EVAPCO Representative or the Local Mr. GoodTower Service Provider ® EVAPCO, Inc. — World Headquarters & Research/Development Center P.O. Box 1300 • Westminster, MD 21158 USA 410-756-2600 p • marketing@evapco.com • evapco.com North America Asia Pacific...
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