Precautions On Installation - Daikin RZQ20KCVJK Installation Manual

01_EN_3P281953-1B.fm Page 10 Tu esday, January 25, 2011 3:35 PM
2. In case obstacles exist in front of the air inlet.
• Do not exceed two levels for stacked installation.
• Install a roof cover similar to A (field supply), as outdoor units with downward drainage are prone to dripping
and freezing.
• Install the upper-level outdoor unit so that its bottom plate is a sufficient height above the roof cover. This
is to prevent the buildup of ice on the underside of the bottom plate. (A space of at least 500 mm is
recommended.)
• It is not necessary to install a roof cover if there is no danger of drainage dripping and freezing. In this case,
the space between the upper and lower outdoor units should be at least 100 mm. (Close off the gap
between the upper and lower units so there is no reintake of discharged air.)
4-4 IN CASE OF MULTIPLE-ROW INSTALLATION (FOR ROOF TOP USE, ETC.) (Units : mm)
1. In case of installing one unit per row.
2. In case of installing multiple units (2 units or more) in lateral
connection per row.
Relation of dimensions of H, A, and L are shown in the table
below.
L ≤ H
L > H

5. PRECAUTIONS ON INSTALLATION

〈 Drain pipe disposal 〉
• Potentially problematic locations for outdoor unit drainage
In locations where, for example, drainage may fall on passersby or frozen drainage may cause passersby
to slip over, install an enclosure (field supply) to prevent people approaching the outdoor unit.
• In regions where buildups of snow can be expected, the accumulation and freezing of snow in the space
between the heat exchanger and external plate may lower operating efficiency.
In this case, drill a knock hole in the lower part of the bottom frame so the snow can escape. When creating
a knock hole, use a φ6 mm drill bit to open round holes around the circumference of the knock hole (4
places).
English
L
0 < L ≤ 1/2H
150 (250) or more
1/2H < L ≤ H
200 (300) or more
Installation impossible.
A
100 or
more 100 or
more H
100 or
more
A
500 or more
200 or more
(300)
50 or more
(100)
1000 or more
(2000)
100 or more
(200)
500 or more
(1000)
100 or more
100 or more
100 or
more
100 or
more
L
A
2000 or more
(3000)
400 or more
(600)
1000 or more
(1500)
10