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Airwell CWP-RC 02 [12/42] English
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Page 11
English
Installation
4 INSTALLATION
4.1 Positioning of the unit
Before installing the unit, make sure that the
structure of the building and/or the support-
ing surface can withstand the weight of the
appliance. The weights of the units are list-
ed in Chapter 8 of this manual.
These units have been designed for outdoor installa-
tion on a solid surface. Standard accessories include
antivibrating rubber supports, that must be posi-
tioned under the base.
When the unit is to be installed on the ground, it is
necessary to provide a concrete base, to ensure a
uniform distribution of the weights.
As a general rule, no special sub-bases are required.
However, if the unit is to be installed on the top of in-
habited rooms, it is advisable to rest it on vibration
isolators, that will minimise the transmission of any
vibration to the structures.
To choose the place of installation of the unit, bear in
mind that the place of installation must be have all
the necessary spaces for air circulation and mainte-
nance operations (see Chapter 9).
4.2 Vibration Isolators
Vibration isolators are recommended for all roof
mounted installations or wherever vibration transmis-
sion is a consideration (see chapter “Dimensional
Data” for the location of each isolator).
Vibration eliminators in all water piping connected
to the units are recommended to avoid straining the
piping and transmitting vibration and noise.
4.3 External hydraulic circuit
The external hydraulic circuit must ensure
the water flow to the evaporator under any
working conditions and with any adjust-
ment.
The external hydraulic circuit should consist of the fol-
lowing elements:
h
A circulation pump which delivers a sufficient wa-
ter flow and discharge head.
h
The capacity of the primary hydraulic circuit
should not be less than 7 litres/KW of cooling ca-
pacity, in order to prevent the repeated start-up of
the compressor and any damage to it. If the water
capacity in the primary piping of the circuit and in
the evaporator is lower than this value, an insulat-
ed storage tank shall be installed.
h
A membrane expansion vessel provided with safe-
ty valve with vent, that must be visible.
Legends:
I: Pressure gauge connection
S/S1: Gate valve
Fl: Flow meter
GA: Flexible hoses
R: Drain cock
T: Thermometer
F: Filter
Flow meter installation
Unit
Connection diagram
External hydraulic circuit
Manuale CWP 4.11.2005 11:56 Pagina 11
Содержание
- Cwp co cwp rc cwp hp 1
- Control system 2
- Dismantling demolition and scrapping 2
- English 2
- Foreword 2
- General description 2
- Installation 2
- Maintenance 2
- Safety 2
- Spare parts 2
- Start up 2
- Table of contents 2
- Technical data 2
- Transport lifting and positioning 2
- Troubleshooting 2
- An introduction to the manual 3
- Emergency stop normal stop 3
- Foreword 3
- Introduction 3
- Warranty 3
- Definitions 4
- English 4
- Foreword 4
- Safety 4
- Access to the unit 5
- General precautions 5
- Precautions against residual risks 5
- Safety 5
- English 6
- Precautions during maintenance operations 6
- Safety 6
- Aus outlet 7
- Ein inlet 7
- Entrée entrata 7
- Safety 7
- Safety labels 7
- Sortie uscita 7
- English 8
- Safety 8
- Safety regulations 8
- Safety 9
- English 10
- Safety 10
- Anchoring 11
- Inspection 11
- Storage 11
- Transport lifting and positioning 11
- Unit handling 11
- Connection diagram 12
- English 12
- External hydraulic circuit 12
- Flow meter installation 12
- Installation 12
- Positioning of the unit 12
- Vibration isolators 12
- Hydraulic connection of the condenser 13
- Installation 13
- Electrical connections 14
- English 14
- Hydraulic connection 14
- Installation 14
- Power supply 14
- Preliminary check 15
- Start up 15
- Checking the operation 16
- Delivery to the customer 16
- English 16
- Start up 16
- Antifreeze function 17
- Control system 17
- Cwp control system 17
- Temperature controller 17
- Μchiller 17
- Control system 18
- English 18
- Summary of the key functions 18
- The meaning of each key in the different modes is summed up in the table below 18
- Control system 19
- Heat exchanger heater thermostat 19
- High pressure control 19
- Low pressure control 19
- Pressostatic valve kit optional 19
- Compressors 20
- Condenser except for cwp rc 20
- English 20
- Evaporator 20
- General description 20
- General specifications 20
- Introduction 20
- Refrigeration circuits 20
- Switchboard 20
- Cwp hp refrigeration circuit 02 to 05 21
- Cwp rc refrigeration circuit 02 to 05 21
- Cwp refrigeration circuit 02 to 05 21
- General description 21
- Page 20 21
- Cwp hp refrigeration circuit 06 to 21 22
- Cwp rc refrigeration circuit 06 to 21 22
- Cwp refrigeration circuit 06 to 21 22
- English 22
- General description 22
- Page 21 22
- Cwp hp refrigeration circuit 25 to 35 23
- Cwp rc refrigeration circuit 25 to 35 23
- Cwp refrigeration circuit 25 to 35 23
- General description 23
- Page 22 23
- English 24
- Page 23 24
- Pressure drops 24
- Technical data 24
- Page 24 25
- Technical data 25
- English 26
- Page 25 26
- Technical data 26
- Page 26 27
- Technical data 27
- English 28
- Page 27 28
- Technical data 28
- Page 28 29
- Technical data 29
- Electrical data 30
- English 30
- Page 29 30
- Technical data 30
- Condenser inlet 1 1 4 female sizes 02 to 09 1 1 2 female sizes 15 31
- Condenser outlet 1 1 4 female sizes 02 to 09 1 1 2 female sizes 15 31
- Cwp cwp hp cwp rc 02 to 15 31
- Evaporator inlet 1 1 4 female sizes 02 to 09 1 1 2 female sizes 15 31
- Evaporator outlet 1 1 4 female sizes 02 to 09 1 1 2 female sizes 15 31
- External source water inlet 31
- External source water outlet 31
- Overall dimensions 31
- Page 30 31
- Technical data 31
- Water leaving to installation 31
- Water return from installation 31
- Condenser inlet 1 1 4 female 32
- Condenser outlet 1 1 4 female 32
- Cwp cwp hp cwp rc 18 21 32
- Discharge line 1 1 8 32
- English 32
- Evaporator inlet 1 1 4 female 32
- Evaporator outlet 1 1 4 female 32
- For cwp cwp hp 32
- For cwp rc 32
- Liquid line 7 8 32
- Page 31 32
- Technical data 32
- Condenser inlet 2 female 33
- Condenser outlet 2 female 33
- Cwp cwp hp cwp rc 25 to 35 33
- Discharge line 1 5 8 33
- Evaporator inlet 2 female 33
- Evaporator outlet 2 female 33
- For cwp cwp hp 33
- For cwp rc 33
- Liquid line 1 1 8 33
- Page 32 33
- Technical data 33
- English 34
- Page 33 34
- Service spaces 34
- Technical data 34
- General requirements 35
- Maintenance 35
- Planned maintenance 35
- Compressor 36
- Condenser 36
- Dehydrating filter 36
- English 36
- Maintenance 36
- Refrigerant charge 36
- Sight glass 36
- Evaporator 37
- Maintenance 37
- Thermostatic expansion valve 37
- English 38
- Troubleshooting 38
- Troubleshooting 39
- English 40
- Oil for compressors 40
- Spare part list 40
- Spare parts 40
- Wiring diagrams 40
- Dismantling demolition and scrapping 41
- Generalities 41
- Itelco industry 42
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