Tekno Point PICCOLO 12 Manuel D'installation page 53

INSTALLATION
10.5 CONNECTIONS BETWEEN INDOOR UNIT AND OUTDOOR UNIT
The indoor unit must be connected by means of the
condensing unit Flare connections of refrigeration quality
copper tube fitted at the ends of Flare and dice isolated
on the entire length. It is absolutely essential to respect
the diameters provided on the units PICCOLO doing may
10.6 PREPARATION OF TUBE REFRIGERATOR
Only use copper pipes as "cold" and that fit each model. The
"gas pipe" and the "liquid tube" must be absolutely isolated
with an insulator of 6 mm. of minimum thickness. Insert the
flare nuts on the ends of the tubes before you prepare them
10.7 PATH OF PIPES
The radius of curvature of the tubes must be equal to or
greater than three and a half times the diameter to the tube
axis. Do not bend the pipe more than three times in a row
and not make more than 10 bends on the total length of the
connection. In the case where there is a height difference
10.8 EXTRACTION AIR IN PIPES AND COOLING UNIT EVAPORATING
The refrigerant charge is contained only condensing unit. The
Indoor Unit contains a small amount of neutral gas. Therefore,
WARNING FOR THE TIGHTENING OF THE VALVE IS ESSENTIAL TO USE AN
SECOND KEY.
10.9 PROCEDURE FOR ASSEMBLY
The condensing LITTLE INVERTER MUST BE INSTALLED
in an accessible position for servicing safely, otherwise
the CAT (service centers) may refuse the CONDENSING
intervento.LA LITTLE
INSTALLED AS OUTSIDE DURING
THE WINTER MAY CAUSE DAMAGE TO THE CIRCUIT
PICCOLOULICO.PREVEDERE
WATER FILTER AN INSPECTION (≤ 500 micron mesh).
- Connect the connecting pipes condensing unit and Unit
Inner.
10.10 ADJUSTMENT OF REFRIGERANT CHARGE
In function of the connection length independent way, it may
be necessary to top up the refrigerant charge (the condensing
units are preloaded to a 5-meter line). This operation must
be performed by qualified personnel and in good standing of
the art refrigeration engineer. The completion of charging is
introduced through the fitting service valve Flare of condensing
INVERTER MUST NOT
ALWAYS THE
invalidate the warranty. In case of use of evaporating units
with different refrigerant connections from those projected on
PICCOLO inverter drives use special fittings reduce (attention
mounting said unit fittings evaporating).
with a flaring tool. The insulated pipe separately with the
respective fittings can then be bound to the evacuation pipe
of the condensate and to electric cables by means of cable
ties.
between the evaporating unit and the condensing unit greater
than 5 m. it will be mandatory to prepare a siphon every 3
m. The siphon must have a radius of curvature as tight as
possible.
after making the connections will be imperative to extract the
air contained in said links and Indoor Units.
- Connect the vacuum pump to the fitting (suction), set in
motion and make sure that the needle drops to - 0.1 MPa
(-76O mm. Hg). Before disconnecting the vacuum pump
check that the vacuum indicator remains stable for> 15
BE
minutes.
- Close the service valve and disconnect the vacuum pump.
- Remove the caps from "GAS" valve and "LIQUID" and open
ENTRY
them with an Allen key to release the contents in R32
INVERTER SMALL group, and then replace the plugs.
- Check the connections for leaks. Use order an electronic
leak detector or spray solution for leak detection.
(big road). If the refrigerant line is less than 5 m. "Download"
the amount of excess refrigerant. Any intervention on the
refrigerant circuits
recommendations elative disposal of R32 in the environment
(according local regulations).
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imply compliance
INSTALLATION MANUAL PICCOLO
elle
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