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Service test – Carrier RTU OPEN 11-808-427-01 User Manual

Page 43

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RTU Open

37

Service Test

Navigation:

i-Vu / Field Assistant:
BACview:

Properties

>

Equipment

>

Configuration

>

Service Configuration

>

Service Test

HOME

>

CONFIG

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SERVICE

>

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 59) 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 a BACview device, Field Assistant, or the i-Vu application. 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 device.

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.