Trane Voyager RT-SVX17C-EN Installation Operation & Maintenance page 39

Commercial 27 1/2 to 50 ton 60 hz commercial 23 to 42 ton 50 hz cv or vav rooftop air conditioners with reliatel controls
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Figure 13
VAV Test Modes
TEST
MODE
STEP
1
IGV/VFD TEST
2
IGV/VFD TEST CLOSED/OFF
3
MINIMUM
VENTILATION
4
ECONOMIZER
5
COOL
STAGE 1
6
COOL
STAGE 2
7
COOL
STAGE 3
8
HEAT
STAGE 1
9
HEAT
STAGE 2
10
RESET
CV Test Modes (Also VAV w/o IGV)
TEST
MODE
STEP
1
MINIMUM
VENTILATION
2
ECONOMIZER
TEST OPEN
3
COOL
STAGE 1
4
COOL
STAGE 2
5
COOL
STAGE 3
6
HEAT
STAGE 1
7
HEAT
STAGE 2
8
RESET
Notes:
1. The IGV/VFD will be controlled to the supply pressure setpoint unless test mode has been running for 6 minutes or
longer. After 6 minutes, the IGV damper will drive to the full open position/VFD will drive to 100% .
2. The supply fan will not be allowed to go from an off state to an on state until the IGV are fully closed.
3. The Heat outputs will not be allowed to come on until the IGV are at the full open position/VFD will drive to 100% .
4. The condenser fans will operate any time a compressor is ON providing the outdoor air temperatures are
within the operating values listed in Table 16.
5. For 27.5 thru 35 Ton units, cool stage 2 is not used and cool stage 3 becomes the active sequence.
6. The exhaust fan will turn on anytime the economizer damper position is equal to or greater than the exhaust
fan setpoint.
7. The VHR relay output will be energized at the start of the test mode to allow time for the boxes to open. It takes
6 minutes for the boxes to drive from the full closed position to the full open position. The timing cannot be
changed in the field.
IGV/VFD
FAN
(Note 7)
OPEN/100%
OFF
OFF
(Note 1) IN
CONTROL
ON
(Note 1) IN
CONTROL
ON
(Note 1) IN
(Note 2)
CONTROL
ON
(Note 1) IN
(Note 2)
CONTROL
ON
(Note 1) IN
(Note 2)
CONTROL
ON
(Note 1)
(Note 2)
OPEN
ON
(Note 1)
(Note 2)
OPEN
ON
FAN
ECON
(Note 6)
MINIMUM
ON
POSITION
ON
OPEN
MINIMUM
ON
POSITION
MINIMUM
ON
POSITION
MINIMUM
ON
POSITION
ON
CLOSED
ON
CLOSED
Unit Start-Up (Continued)
ECON
COMP
COMP
(Note 6)
1
CLOSED
OFF
CLOSED
OFF
MINIMUM
POSITION
OFF
OPEN
OFF
MINIMUM
(Note 4)
POSITION
ON
MINIMUM
(Note 5)
(Note 4,5)
POSITION
OFF
MINIMUM
(Note 4)
(Note 4)
POSITION
ON
CLOSED
OFF
CLOSED
OFF
COMP
COMP
1
2
OFF
OFF
OFF
OFF
(Note 4)
ON
OFF
(Note5)
(Note 4,5)
OFF
ON
(Note 4)
(Note 4)
ON
ON
OFF
OFF
OFF
OFF
39
HEAT
HEAT
2
1
2
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
OFF
OFF
ON
OFF
OFF
(Note 3)
OFF
ON
OFF
(Note 3) (Note 3)
OFF
ON
ON
HEAT
HEAT
OHMS
1
2
OFF
OFF
4.7K
OFF
OFF
6.8K
OFF
OFF
10K
OFF
OFF
15K
OFF
OFF
22K
ON
OFF
33K
ON
ON
47K
OHMS
2.2K
3.3K
4.7K
6.8K
10K
15K
22K
33K
47K

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