2.8
Drainage
Drainage ditch should be provided to allow drainage of condensate that may form on the air side heat exchanger when
the unit is running in heating mode or domestic hot water mode. The drainage should ensure that condensate is directed
away from roadways and footpaths, especially in locations where the climate is such that condensate may freeze.
Figure 3-2.6: 5/7kW models drainage hole
Figure 3-2.7: 12/16kW models drainage hole
2.9
Spacing
2.9.1
Stacked installation
Outdoor units must be spaced such that sufficient air may flow through each unit. Sufficient airflow across heat
exchangers is essential for outdoor units to function properly. Figures 3-1.8 and 3-1.9 show the minimum spaces that must
be allowed between units and the minimum distances from obstacles in front of and behind units.
Figure 3-2.
8
: Installation with obstacles in front of the unit
Table 3-2.2: Minimum spacing from obstacles in front of the unit
Model name
A (mm)
HTW-V5W/D2N8
HTW-V7W/D2N8
≥
1000
HTW-V12W/D2N8
HTW-V16W/D2N8
HTW-V16W/D2RN8
≥
1500
Drain hole
This drain hole is covered by rubber
plug. If the small drain hole can not
meet the drainage requirements, the
big drain hole can be used at the same
time.
This drain hole is
covered by rubber
plug.
If
the
small
drain hole can not
meet the drainage
requirements, the big
drain hole can be
used at the same
time.
Drain hole
≥500mm
A
≥200mm
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