Performing a manual output test
CNT-SVX05B-EN 85
Table 56. Manual output test sequence
Step
1
(number of times Test
button is pressed in
sequence)
Supply fan Cool output(s)
Heat
output(s)
Face and
bypass
damper
Outdoor
air damper
Exhaust
fan
Step 1
2
Off, 0% Closed Closed Bypass Closed Off
Step 2
3
On, 0% Closed Closed Face Closed Off
Step 3
On, DSP
4
Closed Closed Face Closed Off
Step 4 On, DSP
Open or On
5, 6
Closed Face Occupied
minimum
position
Off
Step 5 On, DSP Closed Open or
On
7
Face Occupied
minimum
position
Off
Step 6 On, DSP Closed Closed Bypass Open
On
8
Step 7
Return to normal operation
9
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.
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