Return Air Smoke Detector - Trane Precedent TSCSeries Installation And Maintenance Manual

Table 4. TCO-A replaced for horizontal duct
configuration
Unit Model Electric Heater
Number Model Number
BAYHTRA418, 427,
TSC120F4, THC092F
436, 454
BAYHTRAW18A, 36A,
TSC120FW
54A
THC072F4 BAYHTRU427, 436
TSC090F4 BAYHTRW427, 436
TSC090FW BAYHTRWW27, W36
Figure 31. TCO-A location

Return Air Smoke Detector

The factory installed Return Air Smoke Detector is
installed in the downflow discharge position. No
additional field setup is required.
If a unit is to be converted to horizontal discharge, the
following conversion must be performed:
1. If the unit has an economizer, it must be pulled out in
the operating position.
2. Remove the 3 screws from the mounting brackets.
Refer to downflow view for screw locations.
RT-SVX22J-EN
Figure 32. Downflow view
TCO-A location
Right
Right
Center
Center
Center
3. Lift the tube and bracket from the downflow duct
Figure 33. Horizontal view 1
opening. Rotate the tube and bracket assembly 180
degrees ensuring that the holes on the copper sensing
tube face away from the unit and face the return air
ductwork. Refer to horizontal views below.
Installation
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