Test 2; Test 3; Test 4; Test 5 - Trane Voyager Commercial Installation & Operation Manual

Note: If voltage is incorrect, verify RTAM DIP switch settings.
2. If the voltage to the IGV/VFD is not present, verify that the wires are properly connected between
If Step 2 checks out and the voltage is still not present at the IGV/VFD output, replace the RTAM.

Test 2

Testing the Static Pressure Transducer (SPT) Input
1. With main power to the unit turned "Off", disconnect all of the tubing to the Static Pressure
2. With the system MODE "Off", apply power to the unit and measure the voltage between J1-4
3. Measure the voltage between J1-3 and J1-1 on the RTAM. The voltage should be approximately
4. Apply 2.0" w.c. pressure to the HI port on the static pressure transducer (SPT). Measure the
Note: The SPT is susceptible to interference from VFD's. Make sure the SPT is mounted on plastic

Test 3

Testing the VAV Setpoint Potentiometers
Turn the main power disconnect switch "OFF". Check each potentiometer listed in the table below
by measuring resistance. These potentiometers are built into the RTAM and are not replaceable.
Static Pressure Setpoint
Static Pressure Deadband
Reset Setpoint
Reset Amount
Morning Warmup Setpoint
Supply Air Cooling Setpoint
Supply Air Heating Setpoint

Test 4

Testing the Inlet Guide Vane Actuator (IGVA)
1. Using the "Step Test Mode" procedure described in the "Unit Startup" section (Step 1 for VAV).
2. If the voltage above is present and the actuator is not opening, verify that 24 VAC is present
Note: The IGVA can manually be driven open by shorting the (F) terminal to either the (+) or (-)
RT-SVX34C-EN
the RTRM or COMM (Communications Module) and the RTAM.
Transducer.
and J1-1 on the RTAM. The voltage should be approximately 5 VDC. If not, check the wiring
between the RTRM and the RTAM. If the wiring checks good, replace RTAM.
0.25 VDC. If not, check the wiring between the RTAM and the SPT. If the wiring checks good,
replace the SPT.
voltage between J1-1 and J1-3. The voltage should be 1.75 (± .14) VDC. If not, replace the SPT.
standoffs and is not touching any sheet metal.
Measure the voltage between the (+) and (-) terminals on the actuator. The voltage should be
8.5 VDC. If not, check the wiring between the RTAM and the IGV actuator. If the wiring checks
good, return to Test 1.
between terminals T1 and T2. If the voltage is present, replace actuator.
terminals. The IGVA will drive closed when the short is removed.
0-560 ohms (Approximate)
0-560 ohms (Approximate)
0-560 ohms (Approximate)
0-560 ohms (Approximate)
0-560 ohms (Approximate)
0-560 ohms (Approximate)
0-560 ohms (Approximate)
Diagnostics
RTAM J7-1,2
RTAM J7-7,8
RTAM J7-11,12
RTAM J7-5,6
RTAM J7-9,10
RTAM J7-3,4
RTAM J7-13,14
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