CLIMATEMASTER WATER-SOURCE HEAT PUMPS
Tranquility
®
(TRL) Series
R e v. : N o v e m b e r 1 1 , 2 0 2 1
C l i m a t e M a s t e r Wa t e r-S o u rc e H e a t P u m p s
30
Electrical – Power Wiring
⚠
WARNING!
⚠
WARNING!
Disconnect electrical
power source to prevent injury or
death from electrical shock.
⚠
CAUTION!
⚠
CAUTION!
Use only copper
conductors for field installed electrical
wiring. Unit terminals are not designed
to accept other types of conductors.
Electrical - Line Voltage
- All field
installed wiring, including electrical
ground, must comply with the National
Electrical Code as well as all applicable
local codes. Refer to the unit electrical
data for fuse sizes. Consult wiring
diagram for field connections that must
be made by the installing (or electrical)
contractor. All final electrical connections
must be made with a length of flexible
conduit to minimize vibration and sound
transmission to the building.
General Line Voltage Wiring
- Be sure
the available power is the same voltage
and phase shown on the unit serial plate.
Line and low voltage wiring must be done
in accordance with local codes and the
National Electric Code, as applicable.
Power Connection
- Line voltage
connection is made by connecting the
incoming line voltage wires to the “L” side
of the contactor as shown in Figure 15.
Consult electrical data tables for correct
fuse size.
Transformer
- All 208/230 voltage
units are factory wired for 208 volt. If
supply voltage is 230 volt, installer must
rewire transformer. See wire diagram for
connections.
Blower Speed Selection – CT ECM
- CT (Constant Torque) ECM blower
fan speeds can be changed at the
thermostat. Please see Table 6 for blower
speed settings. Consult the TRL submittal
and wire diagrams for reference to AHRI
rated air flow and factory default wiring.
Special Note for AHRI Testing:
To achieve
rated airflow for AHRI testing purposes
on all CT ECM products is necessary to be
wired to the correct fan motor tap. When
the heat pump has experienced less than
100 operational hours and the coil has
not had sufficient time to be “seasoned”,
it is necessary to clean the coil with a mild
surfactant such as Calgon to remove the
oils left by manufacturing processes and
enable the condensate to properly “sheet”
off of the coil.