Heat Controller HTV Series Installation, Operation & Maintenance Instructions Manual page 8

SOUND ATTENUATION
Sound attenuation is achieved by
enclosing the unit within a small
mechanical room or a closet. Additional
measures for sound control include the
following:
1. Mount the unit so that the return air
inlet is 90° to the return air grille.
Refer to Figure 3. Install a sound
ba e as illustrated to reduce line-of
sight sound transmitted through
return air grilles.
2. Mount the unit on a rubber or
neoprene isolation pad to minimize
vibration transmission to the building
structure.
Figure 3: Vertical Sound Attenuation
NOTICE! Units with clear plastic drain
lines should have regular maintenance
(as required) to avoid buildup of debris,
especially in new construction.
INSTALLATION
HTV/HTD/HTH SERIES
CONDENSATE PIPING
These units utilize a condensate hose
inside the cabinet as a trapping loop;
therefore an external trap is not
necessary. Figure 4A shows typical
condensate connections. Figure 4B
illustrates the internal trap for a typical
vertical heat pump. Each unit must be
installed with its own individual vent
(where necessary) and a means to ush
or blow out the condensate drain line.
Do not install units with a common trap
and/or vent.
Figure 4A: Condensate Drain Air
Figure 4B: Internal Condensate Trap
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Heat Controller, Inc.