Daikin RXYQ96PYDN, Service Manual

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Outside unit multi connection piping kit and Refrigerant branch kit selection Pipe size selection
•
Refrigerant branch kits can only be used with R410A.
•
When multi outdoor system are installed, be sure to use the
special separately sold Outside unit multi connection piping kit. (BHFP22P100U). (For how to select the proper kit, follow the table at right.)
•
Never use BHFP26M90U, BHFP22M90U for M type of this
series or T joint (field supplyed).
How to select the REFNET joint Piping between outside unit(*2) and refrigerant branch kit (partA)
How to select the REFNET header
When using REFNET joint at the first branch counted from the outside unit side, choose from the following table in accordance with the outside unit capacity type. (Example :REFNET jointA) Choose from the following table in accordance with the outside units system capacity type.
Piping between outside unit multi connection piping kit and outside unit (part B)
Choose from the following table in accordance with the capacity type of the outside unit connected.
Choose form the following table in accordance with the total capacity index of all the indoor units conncted below the REFNET header.
How to select the outside unit multi connection piping kit (This is required when the system is multi outside unit system.)
Choose from the following table in accordance with the number of outside units.
Choose the REFNET joints other than the first branch from the following table in a accordance with the total capacity index of all the indoor units connected below the REFNET joint.
Outside unit capacity type
RXYQ72 · 96P type RXYQ120 ~ 216P type RXYQ240P type
Indoor unit total capacity index
× < 72 72
≤
× < 111
111
≤
×
Refrigerant branch kit name
KHRP26M33T KHRP26M72TU KHRP26M73TU
Refrigerant branch kit name
KHRP26M22T KHRP26M33T KHRP26M72TU
Indoor unit total capacity index
× < 72 72
≤
× < 111
111
≤
×
Number of outside unit
2 units
Connecting piping kit name BHFP22P100U
Refrigerant branch kit name KHRP26M22H or KHRP26M33H KHRP26M33H KHRP26M72H
Example for indoor units connected downstream
Example REFNET joint C : Indoor units 5 + 6 + 7 + 8
Example REFNET joint B : Indoor units 7 + 8 Example REFNET header : Indoor units 1 + 2 + 3 + 4 + 5 + 6
Example REFNET header : indoor units 1 + 2 + 3 + 4 + 5 + 6 + 7 + 8
The thickness and material shall be selected in accordance with local code.
For an outside unit installation, make the settings in accordance with the following figure.
Outside unit
High side equalizer pipe (part C)
Piping between outside unit multi connection piping kit and outside unit (part B)
Piping between outside unit multi connection piping kits
Piping between outside unit and refrigerant branch kit (part A)
Outside unit capacity type RXYQ72P type RXYQ96P type RXYQ120P type RXYQ144P type RXYQ168P type RXYQ192 · 216P type RXYQ240P type
Piping size (O. D.) Piping size (O. D.)
Gas pipe
φ
3/4
φ
7/8
φ
1-1/8
φ
1-3/8
Liquid pipe
φ
3/8
φ
1/2
φ
5/8
Outside unit capacity type RXYQ72P type RXYQ96P type RXYQ120P type
Gas pipe
φ
3/4
φ
7/8
φ
1-1/8
Liquid pipe
φ
3/4
φ
1/2
Piping between refrigerant branch kits
Choose from the following table in accordance with the total capacity type of all the indoor units connected downstream.
Piping between refrigerant branch kit and indoor unit. High side Equalizer pipe (part C)(outside multi system only)
Match to the size of the connection pipng on the indoor unit.
*1 Connection piping must not exceed the refrigerant Piping size between outside
unit and refrigerant branch kit (part A)
Indoor capacity index
× < 54 54
≤
× < 72
72
≤
× < 111
111
≤
× < 162
162
≤
×
Indoor unit capacity type 07 · 09 · 12 · 18 24 · 30 · 36 · 48
Gas pipe
φ
1/2
φ
5/8
Liquid pipe
φ
1/4
φ
3/8
Piping size (O. D.)
φ
3/4
(unit : in.) (unit : in.)
Piping size (O. D.)
(unit : in.)
Piping size (O. D.)
(unit : in.)
(unit : in.)
Low side Equalizer pipe (part D)(outside multi system only)
Piping size (O. D.)
φ
3/4
(unit : in.)
Gas pipe
φ
5/8
φ
3/4
φ
7/8
φ
1-1/8
Liquid pipe
φ
3/8
φ
1/2
φ
5/8
Low side equalizer pipe (part D)