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 operations 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 carry out only the operations that can made with the panels
closed. Any operations that require the opening of doors or equipment panels must be carried out only by qualified per-
sonnel.
Each machine is equipped with an Electric Insulating 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 responsible for maintenance.
For identification of the unit (model and serial no.) in case of the necessity for assistance or spare parts, read the identifica-
tion label placed on the outside and inside of the unit.
IMPORTANT: this manual may be subject to modification; for complete and up---to---date information the user should
always consult the manual supplied with the machine.
Index
1 --- Preliminary operations 1......................................................................
1.1 --- Foreword 1.......................................................................................
1.2 --- I ns pec t io n 1......................................................................................
1.3 --- Tr an spo rt 1.......................................................................................
1.4 --- Sealing the room 1................................................................................
1.5 --- Operating limits 1.................................................................................
1.6 --- Servicing areas 1.................................................................................
2 --- I n s t a l l a t i o n 1.................................................................................
2.1 --- Overall dimensions 1..............................................................................
2.2 --- Positioning the indoor unit 1........................................................................
2.3 --- Freecooling duct connections (optional) 1............................................................
2.4 --- Positioning the motor condensing unit 2.............................................................
2.5 --- Refrigeration connections 2........................................................................
2.6 --- Water connections 2...............................................................................
2.7 --- Electrical connections (see Fig. 6, Fig. 7 and the wiring diagram supplied with the unit) 3..................
2.8 --- Emergency cooling (optional) 3.....................................................................
3 --- S t a r t --- u p 3...................................................................................
3.1 --- Refrigerating circuit 3..............................................................................
3.2 --- First start---up (or after long halt) 3...................................................................
3.3 --- Start---up with low outside temperature 3.............................................................
3.4 --- Starting and stopping 3............................................................................
4 --- O p e r a t i o n 4..................................................................................
4.1 --- General information 4..............................................................................
4.2 --- Cooling (see Fig. 8) 4..............................................................................
4.3 --- Heating (optional) 4...............................................................................
4.4 --- Freecooling (optional) 4............................................................................
4.5 --- Adjustment of the condenser fan speed 4............................................................
4.6 --- Emergency cooling (optional) 4.....................................................................
5 --- Microprocessor controls 4....................................................................
5.1 --- Cooling only unit 4................................................................................
5.2 --- Cooling and heating unit 5.........................................................................
5.3 --- Unit with Freecooling 5............................................................................
6 --- R22 units refrigerant charge 6.................................................................
6.1 --- Characteristics of the refrigerant fluid R22 6..........................................................
6.2 --- Refrigerant charge R22 6...........................................................................
6.3 --- Oil charge 7......................................................................................
7 --- R407C units refrigerant charge 7..............................................................
7.1 --- Characteristics of the refrigerant fluid R407C 7........................................................
7.2 --- Refrigerant charge R407C 7........................................................................
7.3 --- Oil charge 7......................................................................................
8 --- C a l i b r a t i o n s 8................................................................................
9 --- Maintenance / Spare parts 8...................................................................
9.1 --- Dismantling the unit 8.............................................................................
9.2 --- Spare parts 8.....................................................................................
1 0 --- A p p e n d i x 9...................................................................................
10.1 --- Check the unit after the installation 9................................................................
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