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6-3. Installation with Dual System Kit
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The Dual System Kit splits the refrigerant circuit into two circuits, enabling two-room air conditioning with a
single outdoor unit.
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When using the Dual System Kit, two indoor units (four units in total) can be connected to a single outdoor unit.
(1) First, remove the capi box to install the Dual System Kit.
(2) Connect the supplied connecting pipe to the Dual System Kit.
(3) Affix the Dual System Kit on the rear surface of the outdoor unit with the supplied tapping screws (4 pcs.) and
connect the Dual System Kit to the service valves of the outdoor unit as shown below. (Figs. 6-8a )
The tubing work for Indoor Units A and B have to be carried out after completion of Dual System Kit
installation, air purging and a leak test.
NOTE
18
Outdoor Unit
Indoor Unit C1
Indoor Unit C2
Dual System Kit
Capi box
Dual System Kit
Connecting pipes
Fig.6-7
AER522QC
Fig.6-8a