c l i m a t e m a s t e r.c o m
15
Tranquility
®
(TRL) Series
R e v. : N o v e m b e r 1 1 , 2 0 2 1
CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Duct Work Installation
Proper duct sizing and design is critical
to the performance of the unit. The duct
system should be designed to allow
adequate and even airflow through the
unit during operation. Air flow through the
unit MUST be at or above the minimum
stated airflow for the unit to avoid
equipment damage. Duct systems should
be designed for quiet operation. Refer to
Figure 6 for horizontal duct system details.
A flexible connector is recommended
for both discharge and return air duct
connections on metal duct systems to
eliminate the transfer of vibration to
the duct system. To maximize sound
attenuation of the unit blower, the supply
and return plenums should include internal
fiberglass duct liner or be constructed
from duct board for the first few feet.
Application of the unit to uninsulated
ductwork in an unconditioned space is not
recommended, as the unit’s performance
may be adversely affected.
If air noise or excessive air flow is a
problem, the blower speed can be
changed. For airflow charts, consult
submittal data for the series and model of
the specific unit.
If the unit is connected to existing
ductwork, a previous check should have
been made to ensure that the ductwork has
the capacity to handle the airflow required
for the unit. If ducting is too small, as in
the replacement of a heating only system,
larger ductwork should be installed. All
existing ductwork should be checked for
leaks and repaired as necessary.
TRL products can be supplied with factory
or field configured supply air openings. If
factory configured supply air openings are
desired, the configurations can be either left
or right return air with right or left supply
air. Back supply air can also be selected
as field or factory configured but must be
paired with left or right supply air openings
on sizes 12 and 15. Please refer to Tables 1,
2, and 3 for minimum and maximum supply
air openings by size.
Flanges for connection to the supply air
are provided when factory configured
supply air openings are ordered. When
field configured supply air openings
are selected, supply air flanges are
integrated into the cabinet design.
Perforated supply air openings are
knocked out and then the supply air
flanges are bent back for connection to
supply air plenum or duct work.
NOTES: Only TRL sizes 006-009 can
be applied as back discharge supply
air only. Sizes 012-015 must be
applied as side discharge supply air
with the option to be combined with
back discharge supply air. Return air
configurations can not be converted in
the field.