Trane Precedent THC036E, Руководство по установке и обслуживанию

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Installation
26 RT-SVX22J-EN
4. On original RETURN DUCT COVER, apply ¼”(6mm.)
continuous bead of 500°F RTV sealant around flange
(opposite insulation side), as shown.
5. Slide RETURN DUCT COVER (insulation side up) into
supply opening until inward edge of duct cover
engages with the 2 retaining clips on the duct flange.
Secure outward edge of the duct cover with two
screws.
Note: If unit is equipped with Return Air Smoke Detector,
refer to field conversion instructions for horizontal
discharge before installing return air duct.
Note: If unit is equipped with Discharge Air Sensing
option refer to the following figure for proper tube
positioning based on unit tonnage.
Note: Certain unit/electric heater combinations require a
limit switch change out for horizontal airflow
applications. Refer to the following instructions to
determine if this process is required for the unit
undergoing installation.
6. After completing installation of the duct covers for
horizontal discharge, proceed to TCO-A instructions.
TCO-A Instructions
If the unit being installed is listed in the following table and
is equipped with the corresponding model number of
factory installed electric heater package in the table, the
limit control TCO-A must be replaced with the extra limit
control shipped in the heater compartment. Replace TCO-
A following the instructions in steps 1 through 3 below. If
the unit being installed does not have a factory installed
electric heater package or is equipped with a factory
installed electric heater model that does not correspond to
any in this table, skip steps 1 through 3 and go on to next
step in the installation process.
1. Remove the heater section access panel and open the
electric heater dead front panel.
2. TCO-A is the limit control located in the central part of
the heater mounting plate and that is located on the
bottom of the two heater element assemblies. To
replace this device, first remove the two wires
connected to the terminals. Next, remove the two
screws which secure it to the heater element mounting
plate. Once TCO-A has been removed form the heater
element mounting plate, discard this device.
3. Obtain the replacement TCO-A which is secured by a
wire tie near the electric heater terminal block in the
heater compartment. Attach it to the heater element
mounting plate with the two screws that were removed
in step 2 above. Connect the two wires that were un-
hooked in step 2 to the terminals on the new TCO-A.
Refer to the heater package wiring diagram to assure
that the wiring is connected properly.
4. Close the electric heater dead front panel and replace
heat section access panel.
Figure 27. Supply duct cover
Figure 28. Return duct cover
Figure 29. Discharge air sensor
Supply Duct Cover
Screw into 4
dimples on top
edge
RTV Sealant
Downflow application
Horizontal application
Cap assembly
with insulation
Remove and discard this tube
for horizontal conversion
Cap assembly
with insulation
Secure with screw
Figure 30. Supply & return openings
Insulation side
down
Supply duct cover
Insulation side up
Return duct
cover