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CASSETTE
YORK CASSETTE (EN) 035T76015-000
9 - BRANCH DISCHARGE AND FRESH AIR INTAKE
Branch Discharge Duct Installation
1. Use when there are obstacles such as partitions
inside the room, and there are places where the air
from the air conditioner will not circulate well. See
figure
A
A retur n air duct shall be made as required,
depending on the amount of return air. In the case
that an adjoining room is also air conditioned. Always
provide a return grille.
2. Air flow rate should be approximately 25% against
the nominal air flow rate. In this case, the external
static pressure of duct side is 1~1.5 mm Aq.
Therefore the external static pressure will be adjusted
by ducting side. (Resistance on the ducting side)
See Figure
B
Possible openning Dimension For Duct Connection
Partition
Return
Grill
Return Grill
(Example)
Small
room
Return
Grill
Obstacle
Fig A
Fig
25 %
B
Air Discharge Knock Out Hole
Air Fresh Knock Out Hole
77
120
1
1
4
80
74
2
61.5
114
120
114
120
40
50
2
∅
5 (2 holes)
Back
Front
Back
Front
120
1
1
4
∅
5 (2 holes)
77
80
74
2
114
120
203
203
03_MKL-MKM.p65
17/6/02, 4:12 pm
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