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Daikin RXYQ5PY1 Service Manual: Size Of Main Gas And Liquid Pipes And Allowable Length

Daikin r-410a heat pump 50hz/60hz cooling only 50hz.
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Appendix
7.7

Size of Main Gas and Liquid Pipes and Allowable Length

7.7.1 Heat Pump 50Hz/60Hz, Cooling Only 50Hz (RX(Y)Q5~54P, 50PH)
∗Note 1
When the equivalent pipe length between outdoor and indoor units is 90m or more, the size of main pipes
(both gas-side and liquid-side) must be increased.
Depending on the length of the piping, the capacity may drop, but even in such case it is able to increase the size of main
pipes.
The first refrigerant branch kit
Outdoor unit
Main pipes
Increase
Diameter of above case
Model
φ19.1
RX(Y)Q5 Type
RX(Y)Q8 Type
φ25.4*
RX(Y)Q10 Type
RX(Y)Q12 Type
Increased
RX(Y)Q14 Type
Increased
φ31.8*
RX(Y)Q16 Type
φ31.8*
RX(Y)Q18 Type
Model
φ38.1*
RX(Y)Q34 Type
RX(Y)Q36 Type
Increased
RX(Y)Q38 Type
Increased
RX(Y)Q40 Type
Increased
RX(Y)Q42 Type
Increased
RX(Y)Q44 Type
Increased
RX(Y)Q46 Type
Increased
142
Indoor unit
Gas
Liquid
Not
RX(Y)Q20 Type
Increased
φ22.2
φ12.7
RX(Y)Q22 Type
φ12.7
RX(Y)Q24 Type
Not
φ15.9
RX(Y)Q26 Type
Not
φ15.9
RX(Y)Q28 Type
φ15.9
RX(Y)Q30 Type
φ19.1
RX(Y)Q32 Type
Gas
Liquid
φ22.2
RX(Y)Q48 Type
Not
φ22.2
RX(Y)Q50 Type
Not
φ22.2
RX(Y)Q52 Type
Not
φ22.2
RX(Y)Q54 Type
Not
φ22.2
*If available on the site, use this size.
Otherwise, it can not be increased.
Not
φ22.2
Not
φ22.2
Model
Gas
φ31.8*
φ31.8*
Not
Increased
φ38.1*
φ38.1*
φ38.1*
φ38.1*
Model
Gas
Not
Increased
Not
Increased
Not
Increased
Not
Increased
Liquid
φ19.1
φ19.1
φ19.1
φ22.2
φ22.2
φ22.2
φ22.2
Liquid
φ22.2
φ22.2
φ22.2
φ22.2
General Information
SiEN34-705

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  • GMacD Dec 22, 2015 11:58:
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