Disconnect Switch External Handle; Electric Heat Units (Seh_) - Trane IntelliPak Installation, Operation And Maintenance Manual

Disconnect Switch External Handle

(Factory Mounted Option)
Units ordered with the factory mounted disconnect switch
comes equipped with an externally mounted handle.This
allows the operator to disconnect power from the unit
without having to open the control panel door.The handle
locations and its three positions are shown below;
"ON" - Indicates that the disconnect switch is closed,
allowing the main power supply to be applied at the unit.
"OFF" - Indicates that the disconnect switch is open,
interrupting the main power supply to the unit controls.
"OPEN COVER/RESET" -Turning the handle to this
position releases the handle from the disconnect switch,
allowing the control panel door to be opened.
Once the door has been opened, it can be closed with the
handle in any one of the three positions outlined above,
provided it matches the disconnect switch position. See
Figure 39.
The handle can be locked in the "OFF" position. While
holding the handle in the "OFF" position, push the spring
loaded thumb key, attached to the handle, into the base
slot. Place the lock shackle between the handle and the
thumb key.This will prevent it from springing out of
position.
An overall layout of the field required power wiring is
illustrated in Figure 40.To ensure the unit's supply power
wiring is properly sized and installed, follow the guidelines
outlined below.
Figure 39. Disconnect switch handle positions
Note: All field installed wiring must conform to NEC
guidelines as well as State and Local codes.
RT-SVX36K-EN
WARNING
Live Electrical Components!
During installation, testing, servicing and
troubleshooting of this product, it may be necessary to
work with live electrical components. Have a qualified
licensed electrician or other individual who has been
properly trained in handling live electrical components
perform these tasks. Failure to follow all electrical
safety precautions when exposed to live electrical
components could result in death or serious injury.
Verify that the power supply available is compatible with
the unit's nameplate rating for all components.The
available power supply must be within 10% of the rated
voltage stamped on the nameplate. Use only copper
conductors to connect the 3-phase power supply to the
unit.
CAUTION
Hot Surface!
Surface temperatures may exceed 300°F (150°C) on
condensing unit and carbon tank.
skin burns, stay clear of these surfaces. If servicing is
required allow surfaces to cool or wear protective gear.
Failure to do so could result in minor to moderate
injury.
NOTICE:
Use Copper Conductors Only!
Unit terminals are not designed to accept other types
of conductors. Failure to use copper conductors could
result in equipment damage.

Electric Heat Units (SEH_)

WARNING
Proper Field Wiring and Grounding
Required!
All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes. Failure to
follow code could result in death or serious injury.
SEHL (20 through 89Ton) electric heat units operating on
200/230 volts require two power supplies as illustrated in
Figure 40. Unless the unit was ordered with the optional
factory mounted non-fused disconnect switches, two
field-supplied disconnect switches must be installed.
The power wires for the electric heat is routed into the
electric heat control panel using the thru-the-base access
provided in the heating section. Refer to the appropriate
illustration in Figure 15, p.
Installation
To avoid possible
29, (Unit Base layout and
55