Trane BAY24X042, Руководство по установке

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Installation
ACC-SVN67M-EN 9
8. TCO-A is the limit control located in the center or right part
of the heater mounting plate that is located on the bottom
of the two heater element assemblies. See
Figure 4 . 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 from the heater element mounting
plate, discard this device.
9. Obtain the replacement TCO-A which is secured with a
wire tie near the unit/heater terminal block located on the
electric heater control panel. Attach it to the heater element
mounting plate with the two screws that were removed in
step 8. Connect the two wires that were un-hooked in step
8 to the terminals on the new TCO-A. Refer to the heater
package wiring diagram to assure that the wiring is
connected properly.
Note: The back of the electric heater element assembly
is supported by a factory installed Electric Heat
Support Rod Hanger or other sheet metal device in
the unit.
10. Tilt the back of the electric heater element assembly
slightly upward as it is positioned in the opening to engage
the support rod with the support rod hanger. The
BAYHTRA, BAYHTRB, and BAYHTRD models will have a
guide rod and a support bracket to help with the
installation. See
Figure 5 . Be very careful to avoid
dragging the heater element on the edges of the opening
in vestibule panel, as this could damage or pinch the heater
elements resulting in a short circuit. Engage the bottom
edge of heater element panel with the two locator tabs. See
Figure 3 . BAYHTRB and BAYHTRD kits will have 4 locator
tabs along the top, a filler panel to be placed below the
heater, and 12 screws to attach the assembly in place. See
Figure 6 .
Table 2. TCO-A replaced for horizontal duct
configuration
Unit Model Number
Electric Heater Model
Number
TCO-A
location
TSC120H4, WSC120H4 BAYHTRA454 Right
TSC120HW, TZC072FW,
TZC090FW, and TZC102FW
BAYHTRAW18,
BAYHTRAW36, W54
Right
TZC120FW, WHC120HW
BAYHTRBW18A,
BAYHTRZW36A,
BAYHTRZW54A,
BAYHTRBW36, W54
Right
THC092F4, THC074F4,
THC102F4, TSC120H4,
TZC072F4, TZC090F4, and
TZC102F, TZ102F4
BAYHTRA427,
BAYHTRA436,
BAYHTRZ409,
BAYHTRA418
Right
THC072E4, WSC090H4 BAYHTRU427, 436 Center
WSC090HW BAYHTRUW27, W36 Center
WSC072H3 BAYHTRW327, 336 Center
TSC090E4, WSC072H4 BAYHTRW427, 436 Center
TSC090EW, WSC072HW BAYHTRWW27, W36 Center
WSC092H3, WSC102H3 BAYHTRU336 Center
WSC092H4, WSC102H4 BAYHTRU436 Center
Figure 4.
TCO-A LOCATED ON THE RIGHT
TCO-A LOCATED IN THE CENTER
Figure 5.
GUIDE ROD GUIDE ROD
SUPPORT BRACKET SUPPORT BRACKET