Chapter 8 Status indicators for operation and communication
58 CNT-SVX06B-EN
Manual output test
The manual output test sequentially turns off and on all binary outputs
to verify their operation. The test overrides normal operation of the con-
troller, which is suspended while the test is being performed.
Use the manual output test to:
• Verify output wiring and operation
• Force compressor operation (on heat pumps) so that a technician can
use test equipment to verify unit operation.
• Force the water valve open (on 1 heat/1 cool units) to balance the
hydronic system
• Clear diagnostics and restore normal operation (although not a pri-
mary function of the manual output test)
The manual output test is performed either by repeatedly pressing the
Test button to proceed through the test sequence or by using the Rover
service tool. Table 13 on page 59 lists the outputs for heat pump configu-
rations in the sequence in which they are verified; Table 14 on page 59
lists the outputs for 1 heat/1 cool configurations in the sequence in which
they are verified. The procedure is as follows:
1. Press and hold the Test button for 3 to 4 seconds, then release the pin
to start the test mode. The green LED light goes off when the Test
button is pressed, and then it blinks (as described in Table 16 on
page 60) when the pin is released to indicate the controller is in man-
ual test mode.
2. Press the Test button (no more than once per second) to advance
through the test sequence. Table 13 shows the resulting activities of
the binary outputs.
Service button (pin)
The Service button (pin) is located as shown in Figure 15 on page 57. The
Service button is used to:
• Identify a device (see “Identifying a device” in the Rover Installation/
Operation/Programming guide (EMTX-SVX01A-EN)
• Add a device to the active group (see “Adding a device” in EMTX-
SVX01A-EN)
• Verify PCMCIA communications (see “Verifying PCMCIA communi-
cations” in EMTX-SVX01A-EN)
• Make the green LED “wink” to verify that the controller is communi-
cating on the link (see Table 16 on page 60 and “Setting the Auto-
wink option” in EMTX-SVX01A-EN)
Note:
The outputs are not subject to minimum on or off times during
the test sequence. However, the test sequence permits only one
step per second, which enforces a minimum output time.
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