Plasson COOLING PAD Operating instructions
COOLING PAD
Installation and Operation Guide
Rev B | Doc P/N: 080205039E
Copyright © 2022 Plasson, all rights reserved.
2 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
Safety
»Safety Overview
»Safety Conventions
»Cautions and Warnings
»Storage, Transport, and Installation
»EMC Safety
Introduction
»System Concept
»System Overview
»Water Circulation Subsystem
»Water Distribution Subsystem
»Frame and Pads
»Water Collection Subsystem
»Typical Installation Methods
Installation
»Preparations for Installation
»System Unpacking
»Bill of Materials (BOM)
»Assembly Instructions
»Power and Control Connections
»Final Checkup
»Flushing the System
Operation Instructions
»System Startup
»System Shutdown
Preventive Maintenance
»Maintenance Checklist
»Preparations for Maintenance
»Visual Inspection
»Cooling Pad System Maintenance and
Cleanup
»Water Filter Cleaning
»Water Pump Filter Cleaning
»Water Pump Replacement
»Cooling Pad Replacement
Troubleshooting
Technical Specications
Warranty
»Limited Warranty
»Limitation of Liability
»Governing Law
Table Of Contents
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Safety |
3 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
1. Safety
This chapter contains an overview of the Cooling Pad safety concerns
and includes:
zSafety Overview
zSafety Conventions
zCautions and Warnings
zStorage, Transport, and Installation
zEMC Safety
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Safety | Safety Overview
4 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
1.1 Safety Overview
The Plasson cooling pad has been designed to meet all known safety
requirements. During normal operation, the cooling pad presents
no hazards to the operator or other personnel. However, in certain
circumstances, the following potential hazards to operators and
maintenance team personnel exist:
zElectrical shock (220 VAC)
zMechanical hazards (moving parts, pinch points, etc.)
zSlipping hazard
zHeavy object hazard
The information and instructions presented in this document are intended
to help personnel work with the cooling pad in a safe, effective, and efficient
manner.
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Safety | Safety Conventions
5 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
1.2 Safety Conventions
Safety information is presented as follows:
WARNING
Warning is the signal word used to indicate a potentially hazardous situation
which, if not avoided, could result in death or severe injury.
DANGER
Danger is the signal word used to indicate an imminently hazardous situation
which, if not avoided, will result in death or severe injury. This signal word is
limited to the most extreme situations.
CAUTION
Caution is the signal word used to indicate a potentially hazardous situation
which, if not avoided, could result in minor or moderate injury. It may also be
used alert against unsafe practices.
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Safety | Cautions and Warnings
6 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
1.3 Cautions and Warnings
The following instructions and guidelines are necessary to ensure safe
operation and long system life. Before performing any work on the system,
become familiar with the following safety sections:
1.3.1 General Safety Cautions
CAUTION
• Read the installation and operation instructions prior to installing or before
servicing the system.
• Before working on the system, read all safety standards and instructions to
avoid injury or damage to equipment or property.
• Electrical connections must be serviced by a qualied electrician, using
certied components only, and according to local regulations and standards.
• Shut off the system before conducting system maintenance.
• Proper operation of the system is not guaranteed if unauthorized parts
are used.
• Clean up spills and leaks immediately.
• In case of unusual or irregular noise or vibration, it is necessary to switch off
the system.
CAUTION
• Follow Operation Instructions and Preventive Maintenance procedures to
prevent mineral and scale build-up.
• Follow Operation Instructions and Preventive Maintenance procedures to
prevent algae growth on wet surfaces.
• DO NOT use water containing chlorine as it will cause corrosion.
• DO NOT use water containing chlorides content higher than 200mg/l as it will
cause corrosion.
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Safety | Storage, Transport, and Installation
7 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
1.3.2 General Warnings
1.4 Storage, Transport, and Installation
WARNING
• Hazardous Voltage: Contact with electrical equipment can cause electric
shock or burn if the power supply is turned on. Before starting any work on
electrical equipment, disconnect the machine from the power socket.
CAUTION
Storage safety:
• Ambient temperature must be between 5°C and 60°C.
• System must not be exposed to humidity, rain, condensation, dust, or direct
sunlight during storage.
Transport safety:
• Move the system only when empty of water.
• Move the system using appropriate lifting equipment.
• Avoid heavy vibration during transport.
CAUTION
Installation safety:
• The operator is responsible for the equipment and must not allow
unauthorized persons to use the system or be in its vicinity.
• Whenever you handle or repair the equipment, turn off the power supply
rst.
• Maintenance and repairs must be carried out by qualied technicians
authorized by Plasson.
• Always use Plasson components when replacing any defective components.
• All electrical parts must be grounded and installed by a qualied electrician.
• Pay close attention to the safety symbols on the components, as
carelessness can lead to serious injury and even death.
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Safety | EMC Safety
8 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
1.5 EMC Safety
All system components comply with IEC EN 61000-6-3, the emission standard
for residential, commercial, and light industrial environments.
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Introduction | EMC Safety
9 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
2. Introduction
This chapter introduces the Cooling Pad system and includes:
zSystem Concept
zSystem Overview
zWater Circulation Subsystem
zWater Distribution Subsystem
zFrame and Pads
zWater Collection Subsystem
zTypical Installation Methods
CAUTION
The system must be installed by a trained and qualied personnel authorized
by Plasson.
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Introduction | System Concept
10 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
2.1 System Concept
1. Exhaust fans reduce the
pressure inside the housing
IndoorOutdoor
3. Hot, dry air is forced to flow through
the wet pads, evaporating the water and
reducing the temperature of the flowing air
2. The pads are continuously
moistened by circulating water
Outdoor
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Introduction | System Overview
11 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
2.2 System Overview
The Plasson cooling pad consists of
the following subsystems:
4. Water Collection Subsystem –
a reservoir collects water that has
passed through the cooling pads
3. Frame and Pads – enable
evaporation of water via air forced
to flow through the wet pads
1.Water Circulation Subsystem –
pumps water from the reservoir to
the cooling pads
2. Water Distribution Subsystem –
distributes water evenly along the
entire set of pads
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Introduction | Water Circulation Subsystem
12 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
2.3 Water Circulation Subsystem
The water circulation subsystem
operates as follows:
5. Water returns to the
pump from the water
collection subsystem
The maintenance valve remains
open during normal operation
3. A bypass valve allows water to flow back
to the reservoir, thus regulating the amount
of water which flows to the cooling pads
NOTE:
water inlet pipe (not included)
A float valve controls water entry
into the reservoir and maintains
water level in the reservoir 1. Water supply connects
to the reservoir through a
control float valve
2. Water is pumped
out of the reservoir
4. Water is filtered before entering the water
distribution subsystem. Pressure gauges
indicate when the filter needs maintenance
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Introduction | Water Distribution Subsystem
13 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
2.4 Water Distribution Subsystem
The water distribution subsystem
operates as follows:
1. Water is pumped to two points
along the cooling pad system
2. Water is distributed along
the entire length of the pads
4. Distribution pads spread the water
along the width of the cooling pads
3. Water under pressure sprays up through
holes in the pipe, hitting the top cover and
dripping onto the distribution pads
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Introduction | Frame and Pads
14 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
2.5 Frame and Pads
2. The pads are slid between a lower gutter and a
top cover, and are supported by two side covers
1. The cooling pads are constructed of a specially
formulated paper impregnated with insoluble resin.
Pad structure maximizes evaporative efficiency
while reducing air flow restriction
3. The top layer of pads is
used to spread the water
evenly over the pads below
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Introduction | Water Collection Subsystem
15 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
2.6 Water Collection Subsystem
The water collection subsystem
operates as follows:
1. Water that has passed
through the pads collects
in a reservoir channel
2. The reservoir rests at a slight
angle, allowing the water to flow
back to the water circulation system
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Introduction | Typical Installation Methods
16 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
2.7 Typical Installation Methods
The following are typical methods for
installing the cooling pads:
cooling
pads
fans
airflow entering housing
airflow inside housing
airflow exiting housing
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Installation | Typical Installation Methods
17 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
3. Installation
This chapter reviews the tasks associated with installing the cooling pad
system and includes:
zPreparations for Installation
zSystem Unpacking
zBill of Materials (BOM)
zAssembly Instructions
zPower and Control Connections
zFinal Checkup
zFlushing the System
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Installation | Preparations for Installation
18 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
3.1 Preparations for Installation
This chapter reviews the tasks associated with preparing the site for
installation and includes:
zHousing Preparation
zRequired Supplies
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Installation | Preparations for Installation
19 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
3.1.1 Housing Preparation
Minimum height needed for cooling pad installation is as follows:
Housing foundation
(concrete belt) = 50 cm
Wall opening length =
2.5 cm greater than length of
cooling pad system
Cooling pad height =
150 cm / 180 cm
Service area = 30 cm
Cooling pad height Minimum height needed (x)
180 cm 260 cm
150 cm 230 cm
x
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Installation | Preparations for Installation
20 Cooling Pad | Installation and Operation Guide Rev B | Doc P/N: 080205039E
3.1.2 Required Supplies
Water Supply
Water pressure must be between 1.5 and 2 bar for each cooling pad system.
Water Quality
Water quality must conform to the following specifications:
▪pH: 6 - 9
Electrical Supply
Single-phase 230V, 50Hz
Communication and Control
The cooling pad is controlled by the house controller (climate control system)
NOTE:
If water pressure is above 2 bar, a pressure
regulator must be installed (not included)
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