EVAPCO AT 220-112 Manuals

Manuals and User Guides for EVAPCO AT 220-112. We have 1 EVAPCO AT 220-112 manual available for free PDF download: Operation And Maintenance Instructions

EVAPCO AT 220-112 Operation And Maintenance Instructions

EVAPCO AT 220-112 Operation And Maintenance Instructions (40 pages)

Induced Draft and Forced Draft Cooling Towers

Brand: EVAPCO | Category: Accessories | Size: 5 MB

Table of Contents

Table of Contents
2
Introduction

3
Safety Precautions / Remaining Risks

3
Checklists

5
Basic Cooling Tower Sequence of Operation

8
Fan System

9
- Fan Motor Bearings
  9
- Fan Shaft Ball Bearings
  9
  - Recommended Bearing Lubricants
    9
- Fan Shaft Sleeve Bearings
  10
- Fan Belt Adjustment
  10
  - Fan and Motor Sheave Alignment
    11
  - Fan System Capacity Control
    12
    
    Fan Motor Cycling
    12
    
    Two Speed Motors
    12
    
    Variable Frequency Drives
    12
Identify and Lock-Out Harmful Resonant Frequencies

13
Recirculated Water System Routine Maintenance

13
- Suction Strainer Assembly
  14
- Cold Water Basin
  14
- Operating Water Levels
  14
- Water Make up Valve
  15
- Drift Eliminators
  15
- Pressurized Water Distribution System
  15
- Bleed-Off Valve
  16
Water Treatment and Water Chemistry

17
- Bleed or Blowdown
  17
- Galvanized Steel - Passivation
  17
- Water Chemistry Parameters
  18
- Control of Biological Contamination
  18
- Gray Water and Reclaimed Water
  19
- Air Contamination
  19
Stainless Steel

19
- Maintaining the Appearance of Stainless Steel
  20
- Cleaning Procedures for Stainless Steel
  20
Cold Weather Operation

21
Troubleshooting

25
Replacement Parts

28

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