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Service Test
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TEST
Service Test can be used to verify proper operation of compressors, heating stages, indoor fan, power
exhaust fans, economizer, and dehumidification. It is highly recommended to use
Service Test at initial
system start-up and during troubleshooting. See Appendix A: Points/Properties (page
58) for more
information.
Service Test differs from normal operation as follows:
• Outdoor air temperature limits for cooling circuits, economizer, and heating are ignored.
• Normal compressor time guards and other staging delays are ignored.
• Alarm statuses (except Fire and Safety Chain) are ignored, but all alarms and alerts are still broadcast on
the network, if applicable.
Service Test can be turned on or off from BACview, Field Assistant, or i-Vu. Select Default Value of Enable to
turn on and
Disable to turn off.
NOTES
• Service Test mode is password-protected when accessed from a BACview.
• Service Test allows testing of each controller output.
• Binary Service Test functions are on when the Default Value is set to Enable and off when set to Disable.
• The output of the Analog Service Test is controlled by the percentage (0-100%) entered into the Default
Value.
• It is recommended to return every Service Test variable to Disable or 0.00 after testing each function
(unless that test variable must be active to test a subsequent function, as in
Compressor 2 Test).
• All outputs return to normal operation when Service Test is set to Disable.
Service Test functions
• Use Fan Test to activate and deactivate the Supply Fan (BO - 1) output. Note that this output may enable
simultaneously with other
Service Test modes even with its Default Value set to Disable.
• Use Compressor 1 Test to activate and deactivate the Compressor 1 (BO - 5) output. The Supply Fan
output will be activated and deactivated in conjunction with this output. Leave
Compressor 1 Test on
Enable if Compressor 2 Test is required.
• Use Compressor 2 Test to activate and deactivate the Compressor 2 (BO - 4) output. Always test the
Compressor 1 output first.
Compressor 1 Test output must be set to Enable for Compressor 2 Test to
function.
• Use the Reversing Valve Test to activate and deactivate the reversing valve (BO - 7) output.
• Use the Dehumidification Test to activate and deactivate the Humidi-MiZer™ (BO - 6) output. The Supply
Fan output will be activated and deactivated in conjunction with the Dehumidification Test output.
• Use Heat 1Test to activate and deactivate the Heat 1 (BO - 3) output. The Supply Fan output is activated
and deactivated in conjunction with the
Heat 1Test output.
• Use Heat 2Test to activate and deactivate the Heat 2 (BO - 2) output. The Supply Fan output is activated
and deactivated in conjunction with the
Heat 2Test output.