Test Modes - Trane WSC036E Installation, Operation And Maintenance Manual

Test Modes

There are three methods in which the "Test" mode can be
cycled at LTB-Test 1 and LTB-Test 2.
• StepTest Mode -This method initiates the different
components of the unit, one at a time, by temporarily
shorting across the two test terminals for two to three
seconds.
For the initial start-up of the unit, this method allows
the technician to cycle a component "On" and have up
to one hour to complete the check.
• ResistanceTest Mode -This method can be used for
start-up providing a decade box for variable resistance
outputs is available.This method initiates the different
components of the unit, one at a time, when a specific
resistance value is placed across the two test
terminals.The unit will remain in the specific test mode
for approximately one hour even though the
resistance is left on the test terminals.
• AutoTest Mode -This method is not recommended for
start-up due to the short timing between individual
component steps.This method initiates the different
components of the unit, one at a time, when a jumper
is installed across the test terminals.The unit will start
the first test step and change to the next step every 30
seconds. At the end of the test mode, control of the unit
will automatically revert to the applied "System"
control method.
For unit test steps, test modes, and step resistance values
to cycle the various components, refer to
RT-SVX23F-EN
Table 8, p. 38.
Pre-Start
37