Step 8 Performing The Gas Leak Test - Samsung ACBN1DCH Series Installation Manual

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Table Of Contents

Table of Contents

Installation Procedure

NOTE

• If the pipes must be shortened, see Step 6 Cutting

and flaring the pipes on page 14.

2 Be sure to use an insulator thick enough to cover the

refrigerant pipes to improve the efficiency of the unit

and to prevent condensate water formation on the

outside of the pipes falling onto the floor.

3 Cut off any excess foam insulation.

4 Make sure that there are no cracks or waves on the

bent area.

5 It is necessary to double the insulation thickness

(0.39inch or more) to prevent condensation on the

insulator when the installed area is warm and humid.

6 Do not use joints or extensions for the pipes

connecting the indoor and outdoor units. The only

permitted connections are those for which the units

are designed.

CAUTION

• Connect the indoor and outdoor units using pipes

with flared connections (not supplied). For the lines,

use insulated, unwelded, degreased and deoxidized

copper pipe (Cu DHP type to ISO 1337 or UNI EN

12735-1), suitable for operating pressures of at least

4.2MPa (609.2 psig) and for a burst pressure of at least

20.7MPa (3002.3 psig). Copper pipe for hydro-sanitary

applications is completely unsuitable.

• For sizing and limits (height difference, line length,

max. bends, refrigerant charge, etc.) see the outdoor

unit installation manual.

• All refrigerant connection must be accessible, in order

to permit either unit maintenance or removing it

completely.

• If the pipes require brazing, make sure that oxygen

free nitrogen (OFN) is flowing through the system.

• Nitrogen blowing pressure range is 0.02 to 0.05 MPa

(2.9 to 7.3 psig).

English

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