2
MARKING
This product marked conforms to the essential requirements of the Directives :
- Low voltage no. 73/23 EEC, modified 93/68 EEC,
- Electromagnetic Compatibility no. 89/336 EEC, modified 92/31 and 93/68 EEC.
CONTENTS
1 - General .................................................................................................................. 2
2 - Presentation ........................................................................................................... 3
3 - Installation .............................................................................................................. 4
4 - Connections ........................................................................................................... 4
5 - Operation of "COMPACT"
µ
CHILLER electronic control ....................................... 6
6 - Starting ................................................................................................................... 9
7 - Maintenance instructions ..................................................................................... 10
8 - Troubleshooting ................................................................................................... 10
9 - Pressure curves ................................................................................................... 11
10 - Wiring diagram ..................................................................................................... 11
APPLIANCES FILLED WITH R 407 C
R 407 C
• Fluid R 407 C, as opposed to R22, is not a pure fluid but a blend
composed of:
- 23% R 32 + 25% R 125 + 52% R 134 A.
• The compressors approved for operation with this fluid are filled
beforehand with polyalcohol oil.
Contrary to mineral oil, it is very hygroscopic: it absorbs the
humidity of the ambient air very quickly. This can modify its
lubricant properties and lead in time to the destruction of the
compressor.
MAINTENANCE INSTRUCTIONS
1 - Never add oil to the appliance; the compressor is filled with
polyalcohol oil, a special oil which cannot tolerate the presence
of other oils.
2 - The instruments used for:
- filling,
- pressure measurements,
- emptying under vacuum,
- recovering the fluid,
must be compatible and only used for the R 407 C fluid.
3 - The weight of the refrigerant contained in the storage bottle
must be checked constantly. Do not use it from the moment the
remaining weight is less than 10% of the total weight.
4 - In the case of a new charge:
- do not use the charging cylinder,
- use a balance and a dip pipe type R 407 C cylinder,
- charge the weight of R 407 C as per the value indicated on
the unit’s identification plate (for “split systems”, refer to the
installation instructions as the charge must consider the
length of the connecting lines),
- IMPORTANT: see paragraph 3.
5 - The charge must be undertaken in liquid phase.
6 - In case of leakage, do not complete the charge: recover the
remaining refrigerant for recycling and perform a total charge.
Recovery, recycling or the destruction of the fluid must be done
in compliance with the laws in force in the country concerned.
7 - If the refrigerant circuit is opened, you must:
- avoid the entry of air into the circuit as much as possible,
- replace the filter drier.
- perform the “vacuum operation” at a minimum level of 0.3
mbar (static).
1 - GENERAL
The installation must be specially designed in order to respect local noise regulations.
1.1 - GENERAL SUPPLY CONDITIONS
• Generally speaking, the material is transported at the consignee’s risk.
• The consignee must immediately provide the carrier with written reserves if he finds any damage caused during transport.