Hitachi YUTAKI M RASM-2VRE Instruction Manual page 27

UNIT INSTALLATION
d) In case that upper side obstacles exist (serial units)
0 < L ≤ 1/2 H A ≥ 500
1/2 H < L ≤ H A ≥ 1000
0 < L ≤ 1/2 A ≥ 500
1/2 H < L ≤ H A ≥ 1000
g) Horizontal (multiple units)
0 < L ≤ 1/2 H A ≥ 100
1/2 H < L ≤ H A ≥ 200
≥ 1000
Do not stack more than two units in height. - Close gap (*) to avoid recirculating discharge air flow.
7 PMML0506 rev.2 - 01/2021
300
200
f) In case that surrounding wall exist (serial units)
L
A
≥ 250
250
250
≥ 2000
≥ 400
e) In case of front side and either of the sides are open (serial units)
0 < L ≤ 1/2 H A ≥ 200
1/2 H < L ≤ H A ≥ 350
h) Vertical (multiple units)
400
≤ 300
1000
≥ 250
400
250