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System Design
3) Judge the inflow area
From the required inflow area calculated in 1), and the effective inflow area calculated in 2)-C),
satisfy the following two conditions.
1) Overall effective inflow area (Set) must be greater than required inflow area Sr.
2) In an array with three or more rows, the smallest value of inflow area of two adjoining walls
(Se
, Se
12
23
If these conditions are not satisfied, apply the following measures, and recalculate.
•
Increase mounting height
•
Install exhaust ducts
•
Change from pads to catwalk mounts
•
Increase wall opening size
•
Lower the height of walls
•
Increase the distance from walls to units
(6) Correction of cooling capability
By meeting these criteria, the temperature of the intake air in this combined installation is expected to rise
by 3ºC during cooling.
Obtain the reduction in cooling capability for each unit from the characteristics for that model type.
, Se
or Se
) must be greater than 25% of Sr: Min(Se
34
41
5. Outdoor unit positioning requirements
D-24
) ≥ 0.25 × Sr
, Se
, Se
or Se
12
23
34
41
Return to paragraph (5) -[1]
Return to paragraph (5)-[3]-2)
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