Daikin GYEQ20AN Service Manual page 49

SiAUY361411EA
7 Installing the Outdoor Unit
Piping between the refrigerant branch kit/BS units and refrigerant branch kit/BS units
Choose one of the sizes
from the table on the
right hand depending on
t h e t o t a l c a p a c i t y o f
indoor units connected
downstream.
Pipes interconnecting
the branch kits must not
exceed the size of the
r e f r i g e r a n t p i p e s
c o n n e c t e d t o t h e
outdoor unit.
Piping between the refrigerant branch kit/BS units and indoor units
The size of the pipes
used should match the
indoor unit's pipe size.
Device Overview
Less than 7.0 kW
7.0 kW or more but less
than 22.4 kW
• Refrigerant branch kit
22.4 kW or more but less
to refrigerant branch
than 33.0 kW
kit
• Refrigerant branch kit
33.0 kW or more but less
to refrigerant branch
than 47.0 kW
kit
47.0 kW or more but less
than 71.0 kW
71.0 kW or more
Less than 7.0 kW
• BS unit to refrigerant
branch kit
7.0 kW or more but less
• Refrigerant branch kit
than 22.4 kW
to refrigerant branch
kit
22.4 kW or more but less
than 28.0 kW
Indoor unit capacity
20/25/32/40/50
63/71/80/100/125/140/145
180/200
250
– 10 –
Suction gas Discharge
pipe gas pipe
-
Pipe size
(outside diameter x minimum wall thickness) (in mm)
Gas pipe
Installation Work Manual
Fluid pipe
Fluid pipe
0FGHP-EN0801 DGJ002
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