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Selection for R41 OA Type
The capacity of downstream indoor units
counted by nominal cooling capacity (kW)
16. 8�W<22. 4
22. 4�W<33
33�W<47
47�W<71
71�W<104
104�W<154
154�W<180
180�W<245
245�W<269
Essentials for Cutting
Connecting portian
/
�
ut at the middle of connectin
lnstruction for lnstallation
1) The manifold type shall be selected according to the designad model selection guide based on the capacity of downstream indoor unit.
2) The undesired par! shall be cut off by dedicated tools (such as cutters) in accordance with the actual tube caliber size, taking EVRI-BP1 manifold
far gas side as example, the sequence of operation are as follows:
a. After the selection of EVRI-BP1 type, the obtained actual object as shown in Figure 1. supposing the tubing we presently use is <t> 15. 88. the
welded pipe of the manifold assembly shall be cut according to the Figure 2.
b. Then the independent tube shall be cut according to the Figure 2.
--
c. The independent tube shall be welded with U-shaped tee.
d. The manifold assembly shall be welded with the tube at site.
1) Pay attention to the distance of horizontal straight pipe.
0.5m or more
0.5m or more
a. The distance of the horizontal straight pipe between the copper pipe turning
place and the neighboring manifold shall be ;,;,:o.5m.
b. The distance of the horizontal straight pipe belween the two neighboring
manifolds shall be ;,;,:o.5m.
c. The distan ce of horizontal straight pipe connecting the indoor unit after
the manifold shall be ;,;,:Q.5m.
Gas side specification (mm)
W<16. 8
269�W
ortion
0.5m or more
Liquid side specification (mm)
<I> 15. 88
Cll9. 52
<I> 19. 05
Cll9. 52
<1>22. 2
<1>28. 6
<I> 12. 7
<1>28. 6
<P15.88
<1>31. 8
<I> 19. 05
<1>38. 1
<I> 19. 05
<1>41. 2
<I> 19. 05
<1>44. 5
<1>22. 2
<1>54
<P25. 4
<1>54
<P28. 6
/
Cut from here O
Figure 1
2) Pay attention to placement horizontally and vertically.
Wi t h i n �
°
±10
�
Horizontal tilt
angle withi�-±1 �
r�B
o
Accessory box number
EVRI-BP1
EVRI-BP2
<1>9. 52
EVRI-BP3
EVRI-BP4
EVRI-BP5
EVRI-BP6
EVRI-BP7
ª
µ
1
-
1
C,tf,om he,e
• 1
Figure 2
DirectionA
DI n
ff
V.1
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