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Startup Wizard
Navigation:
Equipment Touch:
Point Name/Description
Unit Type – The type of equipment that the RTU Open is controlling.
Options:
Heat/Cool – Standard rooftop air handling unit.
LC Weather Expert™ – A special factory-supplied 3-stage cooling unit
HP O/B Ctrl – Heat Pump application, uses reversing valve output to control heating
and cooling.
HP Y1/W1 Ctrl – Carrier Heat Pump application only.
Heat Type – The type of heating used by the unit.
Heat Stages – The number heat stages.
Compressor Stages – The number of mechanical cooling stages.
Fan Control – The type of fan control used on this unit.
Automatically set to Variable Speed if Unit Type is set to LC WeatherExpert™.
Economizer Exists – Set to Yes to enable economizer control for units equipped with an
economizer damper.
Economizer High OAT Lockout Temp– The outdoor air temperature above which
economizer cooling is inhibited.
Vent Dmpr Pos / DCV Min Pos – The minimum outdoor air damper position maintained
during occupied periods.
Economizer Purge Min Pos – The minimum outdoor air damper position maintained
during an unoccupied purge cycle when the Pre-Occ Purge mode is active.
Low Fan Econ Min Pos – The minimum outdoor air damper position maintained during
occupied periods when the fan is running at low speed (if configured for 2-speed fan
control) or the minimum VFD speed (if configured for variable speed fan control).
RH Control – Enables dehumidification control if an RH sensor or humidistat is
available and the unit has the Humidi-MiZer™ dehumidification option installed.
DCV Control – Enables demand controlled ventilation (DCV) if valid CO
available and the unit has an economizer installed.
RTU Open v3
Installation and Start-up Guide
Appendix C: RTU Open Points/Properties on the Equipment Touch
Startup Wizard
95
Range
D:
Heat/Cool
R:
Heat/Cool
LC WeatherExpert™
HP O/B Ctrl
HP Y1/W1 Ctrl
D:
Electric
R:
Electric/Gas
D:
2
R:
1 / 2 /0 (no heating)
D:
One Stage
R:
One Stage
Two Stages
D:
Single Speed
R:
Single Speed
Two Speed
Variable Speed
D:
No
R:
No/Yes
D:
75°F (23.9°C)
R:
55 to 80°F
(12.7 to 26.6°C)
D:
20% Open
R:
0 to 100%
D:
40% Open
R:
0 to 100% Open
D:
33% Open
R:
0 to 100% Open
D:
Disable
R:
Disable/Enable
D:
Disable
sensor value is
2
R:
Disable/Enable
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