Specific R32 Gas Warnings; R32 Gas Charge; R32 Gas Disposal; Safety Rules For R32 Gas Transport And Storage - Trane Picco R32-140 User& Installer's Manual

4.5 SPECIFIC R32 GAS WARNINGS
The R32 refrigerant gas:
• is odourless;
• is flammable, but only if there are naked flame;
• it may cause an explosion, but only if a given concentration in air is reached.
It is a good practice to follow these guidelines:
• do not smoke near the unit;
• affix a no smoking sign near the unit;
• keep the premises where the unit is installed properly aerated;
• do not pierce or burn the unit;
• do not place the unit near ignition sources, such as naked flames, electric heaters etc.;
• every extraordinary maintenance or repair on the unit must be performed by skilled technicians or qualified personnel;
• a gas leak test must be performed after installation.
4.6 R32 GAS CHARGE
The procedures described below may only be performed by skilled technicians or qualified personnel:
• ensure the R32 is not contaminated by any other types of refrigerant;
• keep the gas cylinder in an upright position when charging;
• apply the appropriate label on the unit after charging;
• do not charge more refrigerant gas than needed;
• when charging is completed, perform leak tests before the operating test;
• once all the above operations have been completed, a second leak test should be performed.
4.7 R32 GAS DISPOSAL
The procedures described below may only be performed by skilled technicians or qualified personnel:
• do not dispose of the gas in areas at risk of explosive mixtures forming with air The gas should be disposed of in an appropriate torch with
backfiring stop device. Contact the supplier should you require operating instructions.
4.8 SAFETY RULES FOR R32 GAS TRANSPORT AND STORAGE
Before opening the unit's packaging, ensure there are no gas leaks in the environment with an appropriate gas detector. Ensure there are no fire
ignition sources near the unit.
No smoking near the unit.
Transport and storage must be performed in accordance with the national regulations in force. Specifically, according to ADR provisions, the total
maximum quantity by transport unit in terms of net mass for flammable gases is 333 kg.

5. INSTALLATION

CAUTION: All the operation described below must be done by QUALIFIED PERSONNEL ONLY. Before any operation on the
unit, make sure that power is disconnected. Also make sure that power cannot be accidentally switched back on until all the
operations are over, by means of specific locks.
5.1 GENERAL
When installing or intervening on the chiller unit, it is necessary to strictly follow the rules listed in this manual, to observe all the indications on
the unit and however to take all possible precautions. Failure to comply with the rules reported on this manual can create dangerous situations.
After receiving the unit, immediately check its integrity. The unit left the factory in perfect condition; any damage must be
immediately reported to the carrier and recorded on the Delivery Note before signing it.
The company must be informed, within 8 days, of the extent of the damage. The Customer should prepare a written statement of any severe
damage.
CAUTION: The units are designed for outdoor installation. The outside temperature must never exceed 46°C. Beyond this
value, the unit is no longer covered by the current regulations in the field of safety of pressure equipment.
CAUTION: The installation place must be without any fire risks. Therefore all the necessary measures should be adopted in
order to prevent the risk of fire at the installation place. The appliance must not be placed near naked flames and ignition
sources or heat sources.
The wall of the buildings near the unit must have an adequate fire resistance class, in order to contain any fire that may
develop inside the rooms. However it is recomended to place a fire extinguisher near the unit.
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Picco R32
Inverter air/water heat pumps with axial fan