Trane RT-SVX10C-EN specifications Live Electrical Components, Figure, a.Measure the actual fan RPM

Figure 4-1

Condenser Fan Location with Human Interface Designator

5.Use Table 4-1 to program the Supply Fan for operation by scrolling through the displays.

6.Once the configuration for the Fan is complete, press the NEXT key until the LCD displays the “Start test in __Sec.” screen. Press the + key to designate the delay before the test is to start. This service test will begin after the TEST START key is pressed and the delay desig- nated in this step has elapsed. Press the ENTER key to confirm this choice.

WARNING

Live Electrical Components!

During installation, testing, servicing and troubleshoot- ing of this product, it may be necessary to work with live electrical components. Have a qualified licensed electri- cian 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.

7.Press the TEST START key to start the test. Remember that the delay designated in step 6 must elapse before the fans will begin to operate.

8.With the system in the SERVICE MODE and the supply fan rotating in the proper direction, measure the amper- age at the supply fan contactor 1K16 & 1K15 (additional contactor for 90 thru 130 Ton units). If the amperage ex- ceeds the motor nameplate value, the static pressure is less than design and the airflow is too high. If the amper- age is below the motor nameplate value, static pressure may be too high and CFM may be too low. To determine the actual CFM (± 5%);

a.Measure the actual fan RPM

b.Calculate the Theoretical BHP

Actual Motor Amps X Motor HP)

Motor Nameplate Amps

c. Plot this data onto the appropriate Fan Performance Curve in Figure 4-2. Where the two points intersect, read straight down to the CFM line.

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