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AT 224-018
EVAPCO AT 224-018 User Manual
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34
LSTE UNITS - 1,2 and 1,6 m WIDE UNITS
FILL CASING
SECTIO
N
PAN SECTIO
N
LSTA UNITS - 1,2 m WIDE UNITS
DRIFT ELIM
INATOR
S
FILL
WATE
R
DI
STRIBUTION
SPRAY BRANCH
WATER INLE
T
CONNECTION
CASING
FILL SUPPORT CH
ANNE
L
WATER DISTRIBUTION
SPRAY BRANCH
SUPPORT
MOTOR CO
VE
R
FAN
HO
USIN
G
BEARIN
G
SUPPORT
MIGRATIO
N
BAFFL
E
ACCESS
DO
OR
MOTOR BASE
SUCTION STRAINER
MAKE-UP VALV
E
WITH
ADJUSTABLE FLOA
T
WATER OUTLET
CONNECTIO
N
33
35
Table of Contents
Default Chapter
2
Table of Contents
2
Introduction
3
Safety Precautions / Remaining Risks
3
Installation Precautions
4
Storage Precautions
4
Label on the Casing Section(S)
4
Checklists
5
Initial and Seasonal Start-Up Checklist
5
Maintenance Checklist
6
Seasonal Shut-Down Checklist
7
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
AT/UAT - 1,2 M Wide Units
29
AT/UAT - 2,4 and 2,6 M Wide Cells
30
AT/UAT - 3 and 3,6 M Wide Cells
31
AT/UAT - 4,2 M Wide Cells
32
LPT - All Models
33
LSTE - 1,6 M Wide Units
34
LSTE - 2,4 and 3 M Wide Units
34
Pmtq
36
AT/UAT with Super Low Sound Fan - 2,4 and 2,6 M Wide Cells
37
AT/UAT with Super Low Sound Fan - 3; 3,6 and 4,2 M Wide Cells
38
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EVAPCO AT 224-018 Specifications
General
Brand
EVAPCO
Model
AT 224-018
Category
Accessories
Language
English
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