IBC HPX 3, Инструкция по установке и эксплуатации, Страница: 22 / 68

6.2.1 Installation clearances
Warning
Exposed water piping and associated components (relief valves, circulators, etc.,
should not be in contact with combustible materials. Check local codes for required
clearances and / or provide adequate insulation.
Many jurisdictions set maximums for allowable dB during operations: the IBC HPX 5
produces only 53 dB at full operation, as measured 3'3½" (1m) from the unit. Some
jurisdictions impose a stricter dB level at night: users can easily program a quiet
operation schedule.
The unit must be mounted above the anticipated snow level. Do not mount at ground
level where grass trimmings can block the fan vents.
IBC recommends mounting the unit on a cement pad with rubber or neoprene blocks to
absorb vibration noise, or a similarly durable, level and permanent mounting surface.
The selected location should be protected from roof drip-line: this is particularly important
in areas of high snow-fall. A canopy structure may be needed.
The location must be protected from strong winds. If the site is subject to strong winds
consider building a windbreak around the unit.
The selected location must be in an area accessible for maintenance.
Penetrations through outside walls should be sloped downward to the outside at 1.5% to
encourage water to drain away from the interior.
Where heating load exceeds cooling load, it is recommended to locate the unit on the
south side of the building to take advantage of winter solar warming.
6.3 Important Design Considerations
Determine the water temperatures needed before selecting heat pump. Not only outdoor
temperature but also target water temperature significantly impacts COP and available heat
output. For example, in this HPX 5 heat COP chart (at 60 Hz) we see that the efficiency for
operation with 106°F supply water temperature at -4°F outdoors is as high as the efficiency with
140°F water at 95°F outdoors:
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Section: Installation