Start-up
RTU Open v3
CARRIER CORPORATION ©2019
Installation and Start-up Guide
All rights reserved
42
NOTES
•
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
.
•
We recommend you return every individual
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
High Speed Fan Test
to activate and deactivate the
High Speed Fan Relay
(BO - 7) output. Note that this
output is only applicable if
Fan Control
is set to
Two Speed
and
Unit Type
is NOT equal to
HP O/B Ctrl
.
•
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.
•
Use
Compressor 2 Test
to activate and deactivate the Compressor 2 (BO - 4) output. Always test the
Compressor 1 output first. For all units except the LC WeatherExpert™,
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. Applicable to Unit
Type
HP O/B Ctrl
only.
•
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.
•
Use
Power Exhaust Test
to activate and deactivate the power exhaust (BO - 8) output.
•
Use
Economizer Test
to set the (AO - 1) economizer output to any value from 0 to 100% of configured output
(2-10 Vdc or 0-10 Vdc).
•
VFD Speed Test
is used to set the (AO - 2)
VFD Speed Control
output to any value from 0 to 100% of
configured output (2-10 Vdc or 4-20 mA). Note that this output is only applicable if
Fan Control
is set to
Variable Speed
.
•
Analog Output 2 Test
(AO - 2) is currently unused and does not require testing.
•
Service Test mode does not timeout. Return all test variables to
Disable
or
0.00
. Set
Service Test
to
Disable
or cycle power to the RTU Open to return to normal operation.
Summary of Contents for RTU Open v3
Page 113: ......
