[3] ETR warning 1
[4] * ETR trip 1
[5] ETR warning 2
[6] ETR trip 2
[7] ETR warning 3
[8] ETR trip 3
[9] ETR warning 4
[10] ETR trip 4
ETR (Electronic Thermal Relay) functions 1-4 will calculate the load when the set-up where they were selected
is active. For example, ETR-3 starts calculating when Set-up 3 is selected. For the North American market: The
ETR functions provide class 20 motor overload protection in accordance with NEC.
NOTE: Trane recommends using 24 VDC as thermistor supply voltage.
1-91 Motor External Fan
Option: Function:
[0] * No No external fan is required, i.e. the motor is derated at low speed.
[1] Yes Applies an external motor fan (external ventilation), so that no derating
of the motor is required at low speed. The graph below is followed if the
motor current is lower than nominal motor current (see par.1-24
Motor
Current). If the motor current exceeds nominal current, the operation
time still decreases as if no fan were installed.
4-32 TR200 Programming Guide
To Next Page
Loading...
