Trane Voyager Commercial - Compressor Oil, Phasing, and Restrictors; Compressor Oil Check and Management; Electrical Phasing for Compressors; Precision Suction Restrictor Functionality

RT-SVX34C-EN 91
Startup
Verify that the fans are operating properly and the CFM is within the job specifications. Refer to
power exhaust fan performance tables beginning with Table 42, p. 92 for the exhaust fan
performance characteristics.
Available power adjustments:
1. The power exhaust fan(s) comes on based on the position of the of the exhaust fan setpoint
potentiometer on the RTOM (Reliatel Options Module). The setpoint is factory set at 25%. The
exhaust fan(s) will come on anytime the economizer damper position is equal to or greater than
the exhaust fan setpoint.
2. Physical damper blade stops limit the amount of exhaust airflow by limiting the maximum
opening of the damper blades. These stops (sliding brackets secured with wing-nuts) are
present under the rain hood on the non-modulating power exhaust option. There is one stop
on each side of each damper. The practical range of blade position control is between 1.5" and
4.0" blade opening. The damper is wide-open at 4.0". The stops on each side of a damper must
be in the same position, such that the damper blade connecting member contacts the stops at
the same time.
3. The modulating power exhaust actuator tracks the position of the economizer damper actuator
such that the power exhaust dampers proportionally follow or track the fresh air damper
position.
4. When the Statitrac option is selected, the exhaust actuator will operate independently of the
economizer in order to relieve positive building pressure. If a Space Pressure Transducer failure
occurs, the unit will revert back to fresh air tracking control.
5. The proportional offset between the dampers is adjusted under the rain hood by hole position
selection on the power exhaust actuator jack shaft on the damper linkage arm.
Note: The damper is a barometric damper that continues to function as a pressure relief damper
up to the maximum stop position.
Note: To adjust the damper blade stops, refer to figures Figure 47, p. 93 to Figure 50, p. 94
If the fan speed needs to be changed from the current operating speed, refer to the unit wiring
diagram and the XTB1 and XTB2 terminal strip located in the economizer section.