ECH EVAPORATIVE CONDENSERS
INSTALLATION - OPERATION - MAINTENANCE
140.910-IOM (DEC 13)
Page 2
CONTENTS
MAINTENANCE
COLD WATER BASIN .............................................13
Water Levels ..................................................................13
Table 3: Cold Water Basin Water Levels ........................13
Inspection and Maintenance ..........................................13
FAN .......................................................................13
Inspection and Maintenance ..........................................13
FAN DRIVE SYSTEM ..............................................13
Power Train/Fan System ................................................13
Inspection and Maintenance: ........................................ 14
Alignment: .................................................................... 14
GEAR DRIVE SYSTEM (OPTIONAL FOR DUAL AIR
INLET ECH-D ONLY) ...........................................15
Initial Start-up: ..............................................................15
Change Interval: .............................................................15
Inspection and Maintenance: .........................................15
Routine Maintenance During Operation: ........................15
Lubrication: ....................................................................16
Table 4: Recommended Mineral Oils .............................16
Table 5: Recommended Synthetic Lubricants ................16
Synthetic Lubricants: .....................................................16
Table 6: Normal Operating Oil Capacity .........................16
Table 7: Gear Model/Unit - Standard Fan ......................16
Table 8: Gear Model/Unit - Low Sound Fan ...................16
FAN MOTORS ....................................................... 16
Inspection and Maintenance ..........................................16
Adjustable Motor Base ..................................................17
FAN SHAFT BEARINGS ...........................................17
Inspection and Maintenance ..........................................17
HEAT TRANSFER SECTION .....................................17
Fill and Drift Eliminator ..................................................17
Inspection and Maintenance: .........................................17
WATER DISTRIBUTION SYSTEM ............................17
WATER LEVEL CONTROL .......................................17
Mechanical Makeup Valve Assembly .............................18
Inspection and Maintenance: .........................................18
OPTIONAL ELECTRIC WATER LEVEL
CONTROL PACkAGE .......................................... 18
Inspection and Maintenance: .........................................18
SYSTEM CLEANING .............................................. 18
Coil Cleaning ..................................................................18
Weld Byproduct Cleaning...............................................18
WATER TREATMENT ............................................ 18
Bleed Rate .....................................................................18
Table 8: Recommended Maintenance Services
(1)
......... 20
RECOMMENDED SPARE PARTS .............................21
Basic Recommended Spare Parts ..................................21
Parts to Consider if Extended Downtime is a Concern ..21
INSTALLATION
RIGGING AND ASSEMBLY INSTRUCTIONS
ECH/ECH-D EVAPORATIVE CONDENSERS ............... 4
Shipping .......................................................................... 4
Check Unit Before Rigging .............................................. 4
Anchoring ...................................................................... 4
Rigging............................................................................ 5
SECTION ASSEMBLY OF FOUR-PIECE CELLS
(ECH-D MODELS) ................................................. 6
Section Assembly of Four-Piece Cells (cont’d) ............... 7
Section Assembly of Two-Piece Cells ............................. 7
BLEED LINE INSTALLATION ............................................. 7
Optional Accessories and Equipment .............................. 7
OPERATION
INITIAL AND SEASONAL START-UP........................ 8
General ........................................................................... 8
Cleaning .......................................................................... 8
Inspection ....................................................................... 8
Start-up .......................................................................... 8
ExTENDED SHUTDOWN .......................................... 9
COLD WEATHER OPERATION .................................. 9
Inspection and Maintenance ........................................... 9
Fan Section Icing Protection ........................................... 9
Temperature Setting .......................................................9
Fan Control .....................................................................9
Coil Freeze Protection .................................................. 10
Minimum Operation ......................................................10
Positive Closure Damper Hood and Insulation ..............10
Emergency Coil Drain ...................................................10
Basin Water and Internal Piping Freeze Protection ...... 10
Cold Water Basin Protection.........................................10
Piping Freeze Protection ...............................................10
CORROSION PROTECTION .....................................11
Corrosion and Treatments .............................................11
Corrosion and Scale Control ..........................................11
Table 2: Quality Guidelines for Chemically Treated
Circulating Water .......................................................11
Chemical Treatment Requirements ................................11
Passivation.....................................................................11
BIOLOGICAL CONTROL ..........................................12
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious
injury.
Indicates a potentially hazardous situation or practice which, if not avoided, will result in death or
serious injury.
SAFETY PRECAUTION DEFINITIONS
Indicates a potentially hazardous situation or practice which, if not avoided, will result in damage
to equipment and/or minor injury.
Indicates an operating procedure, practice, etc., or portion thereof which is essential to highlight.
DANGER
WARNING
CAUTION
NOTICE
