Airwell X ARV Installatie- en onderhoudshandleiding - Pagina 15
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TIGHTENING TORqUE FOR REFRIGERANT VALVES
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LIqUID:
(small valve) 15Nm
1 Newton-meter = 0,1 meter-kilo
FOLLOW THE CONNECTION INSTRUCTIONS FOR THE VALVES WITH NON-REMOVABLE
MEMBRANES
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Line up the 2 half couplings.
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Remove the protective plugs on each coupling.
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Check if the valves are greased on the inside; if not, lubricate them slightly with oil fit refrigeration
use.
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Give a few clockwise turns by hand, to make sure threading is engaged properly.
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Continue screwing clockwise with a wrench, while holding the rear part ( tube side ) with another
wrench placed counter-clockwise, until it is firmly tighten . Just then, resume locking with an additional
1/4 turn of the wrench.
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The reason for this last step is to crimp the internal metal gasket.
NOTE
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prior to final butt-screwing, a slight freon leak may be noticed which should stop quickly.
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proceed to leak tests.
THESE COUPLINGS WHILE CIRCUIT IS UNDER REFRIGERANT PRESSURE
HYDRAULIC CONNECTIONS
The cooling water inlet and outlet (water cooled models) is made by hoses situated in the lower part of the unit
with female union nuts on their ends Ø 20x27.
passage provided on the right or left side.
Condensate drain: the hose (20 x 25) coiled in the lower part of the unit must be brought out through the hole
5 page 8.
SAFETY DRAIN.
The sealed bottom of the indoor unit which collects condensate or abnormal overflow is equipped with a right or
left lateral outlet pipe 22mm outer diameter.
The condensate drain pipe must have a minimum slope of 2,5 cm/m in the flow direction.
In case of connection to the sewer it is necessary to provide a trap on the drain pipe.
Thermical insulation (6 mm mini) must be provided when necessary (risk of freezing or condensation).
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SUCTION:
(large valve) 55Nm
FOR SAFETY'S SAKE NEVER DISCONNECT
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