Rooftop Installation - Heat Controller A-VFH24TA-1 Installation, Operation & Maintenance Manual

Heat Controller
• Avoid areas where water, snow, or ice may fall from
the roof onto the unit.
• In climates where snow is a consideration, locate
the unit away from areas prone to drifting.
• Ensure the location of the unit will not be subject
to snow drifts, heavy accumulation of snow or
leaves or other seasonal debris. If such a location is
unavailable, provide an awning for the unit. (Fig. 4
and Fig. 5)
1. An awning can be built over the outdoor unit
to prevent direct sunlight, rain exposure, or
snowfall.
2. Ensure that the awning does not impede the
unit's required clearances or obstruct air flow.
Fig. 4
Fence or
Obstacles

Rooftop installation

• If the outdoor unit is installed on a roof structure, be
sure to level the unit.
• Ensure the roof structure and anchoring method are
adequate for the unit location.
• Consult local codes regarding rooftop mounting.
• Ensure free flow of air into and out of the unit. All air
• During heating and defrost modes (heat pump
Min. 1.5ft (500mm)
Min. 1.5ft (500mm)
Min. 6.5ft (2000mm)
Fig. 6
• If the outdoor unit is installed on roof structures
• Oil traps must be made in the refrigerant line set
7
VFH InverterFlex
3. The awning should be at least 2 ft. (0.6m) away
from the top of the unit's housing.
inlet/outlets should be free of obstructions such as
walls and shrubs. Minimum clearances should be
maintained. (Fig. 1)
models only), the condensate should be properly
drained away from the unit. • Do not locate two or
more units in any way that will block discharge air
from one unit to another. Be certain that hot air from
one unit will not blow into a nearby unit to prevent
recirculation or discharge air. (Fig. 6)
Fig. 5
Min. 3.5ft (1000mm)
(Service space)
or external walls, excessive noise and vibration
may result, and may also be considered a non-
serviceable installation.
(every 10 ft.) when the outdoor unit is located above
the indoor unit.
- Outdoor Ductless Mini-Split
®