140.925-IOM (APR 2019)
Page 7
XLP3 EVAPORATIVE CONDENSERS
INSTALLATION
Wiring the Factory Terminal Box (EC Fan System Only)
Electrical Power Quality
This unit requires clean electrical power to operate properly.
Voltage and frequency should be within 10% of the designed
voltage for the unit. Failure to provide this power may damage
the unit. The EC fan motors contain built-in protection circuits
that will shut down the fan if there is a power quality issue. If
the fans go into protection mode, the unit must be shut down
and restarted to return to normal operation.
WARNING
When connecting power to the unit, do not penetrate the
top of the control panel. Doing so may allow moisture to
enter the panel. All cable and conduit should be supported
separately from the unit. Do not penetrate the unit for
supports or other connections.
Power Connections
The XLP3 Condenser requires a 3 phase 60Hz power source (50Hz
also available). The voltages available are 200 to 240V and 380V
to 480V. Please ensure that the correct voltage is supplied to
the unit. If unsure, check your unit’s submittal to verify that the
provided power matches your unit. On the factory terminal box,
remove the NEMA plug located on the side of the panel near the
disconnect switch. This will maintain the panel’s NEMA 4 rating
and prevent water ingression to the unit.
NOTICE
Any motors or accessories shipped in the cold water basin
must be removed prior to installing the upper (mechanical
and coil casing) section.
Controls Connections
The controls wiring should be provided in a separate conduit
from any power wiring. Frick recommends penetrating the control
panel from the bottom or side panel observing standards. It is
also recommended to use shielded wire to avoid interference.
To control the XLP3 Evaporative Condenser fan speed, a control
signal of 4-20mA is used. The signal commands the fans off at
4mA and full speed at 20mA. The 4-20mA should be wired as
outlined in the wiring diagram in the submittal package. Control
wiring can be routed into the terminal box through the NEMA
plug located on the bottom of the panel.
Figure 6a — Terminal Box Location
Terminal Box
Figure 6b — Terminal Box
H