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UBXC-UDXC-IOM (01-24) 1042980-0
NOTE: Four-point suspension is recommended. Two-point suspension is permitted only on unit
sizes 30–125 of model UDXC when installed without a downturn nozzle or stepdown transformer.
• A 3/8-16 threaded nut retainer is located at each suspension point. The heater may be suspended using either
3/8-inch threaded rods or a hanger kit option package.
• Shipped-separate option packages that should be installed before the heater is suspended include vertical louvers,
high-elevation kit, multiple heater control, sensor for DDC control, and/or stepdown transformer. Installation
instructions for these option packages are included in the option package.
Suspension of Heater Using Option CK8 or CK10 Hanger Kit
Options CK8 (two-point suspension, model UDXC unit sizes 30–125) and CK10 (four-point suspension) are for
suspending the heater using swivel connectors connected to 1-inch pipe. Install the swivel connectors at the 3/8-16
threaded nut retainers. Ensure that the swivel connectors are locked to the heater as shown in Figure 5.
Figure 5. Option CK8 or CK10 Hanger Kit
Suspension of Heater Using Option CK22 Hanger Kit (Model UDXC, Unit Sizes 30–125)
The ceiling suspension kit (option CK22) allows the heater to be installed 1 inch from the ceiling without hanger
rods. The ceiling suspension kit is used only on model UDXC unit sizes 30–125. Refer to the installation instructions
provided with the kit.
Heater Suspension Using Field-Supplied Threaded Rods
The heater may be suspended from 3/8-inch threaded rods using either two- (model UDXC unit sizes 30–125) or
four-point suspension. The recommended maximum rod length is 6 feet (1.8 meters). The length of the threaded
rod extending into the heater MUST NOT exceed 1/2 inch (13 mm). Ensure that the threaded rods are locked to
the heater as shown in Figure 6.
ADD 3/8-INCH
NUT AND
WASHER TO
LOCK ROD
TO HEATER
3/8-INCH
THREADED ROD
Figure 6. Heater Suspension Using Field-Supplied Threaded Rods
Suspension of Heater with Downturn Nozzle
Ensure that any unit with a downturn nozzle (option CD2, CD3, CD4, or CD5) is installed using one of the above
FOUR-POINT suspension methods. Follow the instructions provided with the downturn nozzle kit.
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