Trane Tracer AH540 Setup And Operation page 95

Table 56. Manual output test sequence
1
Step
(number of times Test
button is pressed in
sequence)
2
Step 1
3
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
1 The following diagnostics cause the Tracer AH540/541 to exit the manual output test:
• Duct Static-pressure High Limit
• Low Supply Fan Air Flow
• Low Temp Detect
• Unit Shutdown
2 When the manual output test starts, all outputs are turned Off or closed. The status LED blinks once if there are no diagnostics
and blinks twice if any diagnostics are present.
3 At the beginning of step 2, the controller attempts to clear any existing diagnostics. If the controller is unsuccessful clearing a
diagnostic, the controller exits the manual output test.
4 If the controller is configured for variable-air-volume (VAV) control, the controller tests duct static-pressure (DSP) control dur-
ing steps 3 through 6.
5 If the Tracer AH540/541 cooling type is hydronic or two-pipe changeover, the valve will open 100% in step 4. If the cooling type
is DX the first stage of cooling will be energized in step 4, and each additional DX output will energize sequentially with each
Test button press (maximum of 4-stages).
6 DX cooling stages will not energize if defrost operation is active. See "Defrost operation" on page 65 for more information.
7 If the Tracer AH540/541 heating type is hydronic or steam, the valve will open 100% in step 5. If the heat type is staged electric
or analog electric the first stage of heating will be energized in step 5, and each additional electric heat output will energize
sequentially with each Test button press. Staged electric can have a maximum of 4-stages. Analog electric can have a maxi-
mum of 6 stages.
8 If an exhaust-fan status diagnostic occurs, the controller turns Off the exhaust fan during step 6.
9 The controller exits the test by initiating a reset and returning the controller to normal operation.
CNT-SVX05B-EN
Supply fan Cool output(s)
Off, 0% Closed
On, 0% Closed
Closed
4
On, DSP
On, DSP
Open or On
On, DSP Closed
On, DSP Closed
Performing a manual output test
Face and
Heat
bypass
output(s)
damper
Closed Bypass
Closed Face
Closed Face
5, 6 Closed Face
Open or Face
On 7
Closed Bypass
Return to normal operation
Outdoor Exhaust
air damper fan
Closed Off
Closed Off
Closed Off
Occupied Off
minimum
position
Occupied Off
minimum
position
Open 8
On
9
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