Caution
It is recommended that:
S the manual is retained for the entire service life of the machine;
S the user reads the manual carefully before carrying out any operatio ns on the machine;
S the machine is used exclusively for the purpose for which it is intended; incorrect use of the machine shall release the
manufacturer from any liability.
This manual has been prepared to enable the end---user to carr y out only those operations that can be done with the panels
closed. Any operat ions that require the opening of doors or equipment panels must be carried out only by qualified pers on-
nel.
Each machine is equipped with an electric isolating device which allows the operator to work in conditions of safety. This
device must always be used to eliminate risks during maintenance (electric shocks, scalds, automatic restarting, moving
parts and remote control).
The panel key supplied with the unit must be kept by the person responsi ble for maintenance.
For identification of the unit (model and serial no.) in case of the necessity for assistance or spare parts, read the identification
labels affixed to the outside and inside of the unit.
IMPORTANT:
This manual may be subject to modification; for co mplete and up---to---date information the user should
always consult the manual supplied with the machine.
Index
1-- Introduction 1...............................................................................
1.1 --- Foreword 1....................................................................................
1.2 --- Responsibility 1................................................................................
1.3 --- Inspection 1...................................................................................
1.4 --- General description 1............................................................................
2 -- Preliminary Operations 1....................................................................
2.1 --- Operating limits 1...............................................................................
2.2 --- Sound pressure levels 1.........................................................................
2.3 --- Transport 2....................................................................................
2.4 --- Foundations 2..................................................................................
2.5 --- Service area 2..................................................................................
3 -- Installation 2................................................................................
3.1 --- Hydraulic connections 2.........................................................................
3.2 --- Connection of the safety valve discharge 3.........................................................
3.3 --- Electrical connections 4..........................................................................
4 -- Start-- Up and Operation 4...................................................................
4.1 --- Initial check 4..................................................................................
4.2 --- First start ---up (or after a long stop) 5...............................................................
4.3 --- Starting and stopping 5..........................................................................
4.4 --- Chillers serving special plants 5...................................................................
4.5 --- Freecooling 5..................................................................................
4.6 --- Microprocessor control 5.........................................................................
5 -- Refrigerant and Oil Charge 5.................................................................
5.1 --- Refrigerant charge 5............................................................................
5.2 --- Oil charge 5...................................................................................
6 -- Safety Devices Settings 6....................................................................
6.1 --- Setting thermostatic expansion valve 6.............................................................
7 -- Maintenance 7..............................................................................
7.1 --- Spare parts 7..................................................................................
7.2 --- Dismantling the unit 7...........................................................................
8 -- Options and Accessories 7...................................................................
8.1 --- Pump set 7....................................................................................
8.2 --- Wat er chiller with partial heat recovery (20%) 7......................................................
8.3 --- Water chiller with total heat recovery (100%) 8.......................................................
8.4 --- Hydraulic circuit accessories 8....................................................................
8.5 --- Water chill er with inertia tank 8....................................................................
Ta bl es 9..........................................................................................
Drawings 15......................................................................................
Circuits 23........................................................................................
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