System Design
5. Outdoor unit positioning requirements
D-18
(1) Combined installation criteria
If several outdoor units are installed on, for example, the roof of a building, the space required for normal
operating airflow may be insufficient, causing exhaust air from one outdoor unit to be sucked into another,
creating a kind of airflow short circuit. This can cause an increase in the effective ambient air temperature,
impeding cooling capability or even forcing emergency shutdown.
Therefore, when installing multiple GHP units, follow the instruction criteria below to ensure sufficient airflow.
Compared with cooling, the effect on heating is slight, so there should be no problems if the installation
criteria for cooling are satisfied.
Note: In unusual installation circumstances, give these criteria appropriate consideration when making
installation decisions.
(1) Scope of applicability of criteria
These criteria apply to installations in either of the following situations:
•
When eight or more outdoor units are installed in combination
•
When seven or fewer outdoor units are installed where walls are present that may impede air
circulation
(2) Conditions for combined installation
To ensure adequate airflow, the following conditions must be met in combined installations:
•
Adequate spacing must be provided between each outdoor unit and between rows of units.
•
Adequate clearance for airflow from the surroundings must be provided for the combined outdoor units.
(3) Parameters for combined installations
[1] Rows of outdoor units
L
a
= Average distance between outdoor units (m)
•
When the distance between outdoor units is unequal, L
a
is the average.
•
Locate no more than three outdoor units near each other.
•
If there are six or more units in a row, leave a one-meter gap every three units.
L
u
= distance between rows (m)
•
All distances Lu should be equal.
L
N
= Row length (m)
L
M
= Depth of outside of installation (m)
L
W
= Distance from wall to nearest outdoor unit (m)
•
If no wall, LW = 6.
U
W
= Width of outdoor unit (m)
U
D
= Depth of outdoor unit (m)
Summary of Contents for ECO G SGP-EW120M2G2W
Page 3: ...A 1 System Configuration Contents 1 Type Configuration 1 Outdoor unit A 2 ...
Page 12: ...Outdoor Unit 3 External Dimensions B 8 ...
Page 13: ...Outdoor Unit 4 Wiring Diagram B 9 ...
Page 14: ...Outdoor Unit 5 Performance Characteristics B 10 Cooling Heating SGP EW120M2G2W ...
Page 15: ...Outdoor Unit 5 Performance Characteristics B 11 Cooling Heating SGP EW150M2G2W ...
Page 16: ...Outdoor Unit 5 Performance Characteristics B 12 Cooling Heating SGP EW190M2G2W ...
Page 17: ...Outdoor Unit 5 Performance Characteristics B 13 Cooling Heating SGP EW240M2G2W ...
Page 18: ...Outdoor Unit 6 Operating Sound Level Characteristics B 14 1 Standard Mode ...
Page 19: ...Outdoor Unit 6 Operating Sound Level Characteristics B 15 ...
Page 20: ...Outdoor Unit 6 Operating Sound Level Characteristics B 16 ...
Page 21: ...Outdoor Unit 6 Operating Sound Level Characteristics B 17 ...
Page 22: ...Outdoor Unit 6 Operating Sound Level Characteristics B 18 2 Quiet Mode ...
Page 23: ...Outdoor Unit 6 Operating Sound Level Characteristics B 19 ...
Page 24: ...Outdoor Unit 6 Operating Sound Level Characteristics B 20 ...
Page 25: ...Outdoor Unit 6 Operating Sound Level Characteristics B 21 ...
Page 28: ...Control Related 1 System Block Diagram C 2 ...
Page 29: ...Control Related 2 Remote Control Warning List C 3 ...
Page 30: ...Control Related 2 Remote Control Warning List C 4 ...
Page 31: ...Control Related 2 Remote Control Warning List C 5 ...
Page 76: ...Installation Work 1 Points regarding refrigerant pipe work E 3 APR P680BG ...
Page 77: ...Installation Work 1 Points regarding refrigerant pipe work E 4 APR P1350BG ...
Page 78: ...Installation Work 1 Points regarding refrigerant pipe work E 5 APR CHP680BG APR CHP1350BG ...
Page 86: ...Installation Work 2 Points regarding electrical work outdoor unit E 13 ...
Page 87: ...Installation Work 3 Outdoor unit installation work E 14 ...
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