Design and Technical Manual

3. OUTDOOR UNIT & BRANCH BOX
MULTIPLE OUTDOOR UNIT INSTALLATION3-1-2.
Provide at least 1in. (25mm) of space between the outdoor units if multiple units are installed.
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When routing the piping from the side of an outdoor unit, provide space for the piping.
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No more than 3 units must be installed side by side.
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When 3 units or more are arranged in a line, provide the space as shown in the following
example when an obstruction is present also in the upward area.
WHEN THE UPWARD AREA IS OPEN
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Obstacles at rear only
z
z
Obstacles at front only
z
Obstacles at front and rear only
12 (300)
60 (1500) or more
20 (500)
60 (1500) or more
WHEN AN OBSTRUCTION IS PRESENT ALSO IN THE UPWARD
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AREA
Obstacles at rear and above only
z
60 (1500)
60 (1500)
20 (500)
Max. 12 (300)
OUTDOOR UNITS INSTALLATION IN MULTI ROW3-1-3.
Single parallel unit arrangement
z
z
Multiple parallel unit arrangement
6 (150)
24 (600)
40 (1000)
79 (2000) or more
20 (500)
24 (600)
60 (1500)
119 (3000) or more
- (03 - 07) -
OUTDOOR UNITS OUTDOOR UNITS