Carrier RTU Open v3 User Manual

Appendix C: RTU Open Points/Properties on the Equipment Touch
RTU Open v3 CARRIER CORPORATION ©2019
Installation and Start-up Guide All rights reserved
95
Startup Wizard
Navigation:
Equipment Touch:
Startup Wizard
Point Name/Description
Range
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.
D:
R:
Heat/Cool
Heat/Cool
LC WeatherExpert™
HP O/B Ctrl
HP Y1/W1 Ctrl
Heat Type
– The type of heating used by the unit. D:
R:
Electric
Electric/Gas
Heat Stages
– The number heat stages. D:
R:
2
1 / 2 /0 (no heating)
Compressor Stages
– The number of mechanical cooling stages. D:
R:
One Stage
One Stage
Two 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™
.
D:
R:
Single Speed
Single Speed
Two Speed
Variable Speed
Economizer Exists
– Set to
Yes
to enable economizer control for units equipped with an
economizer damper.
D:
R:
No
No/Yes
Economizer High OAT Lockout
Temp
– The outdoor air temperature above which
economizer cooling is inhibited.
D:
R:
75°F (23.9°C)
55 to 80°F
(12.7 to 26.6°C)
Vent Dmpr Pos / DCV Min Pos
– The minimum outdoor air damper position maintained
during occupied periods.
D:
R:
20% Open
0 to 100%
Economizer Purge Min Pos
– The minimum outdoor air damper position maintained
during an unoccupied purge cycle when the Pre-Occ Purge mode is active.
D:
R:
40% Open
0 to 100% Open
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).
D:
R:
33% Open
0 to 100% Open
RH Control
– Enables dehumidification control if an RH sensor or humidistat is
available and the unit has the Humidi-MiZer™ dehumidification option installed.
D:
R:
Disable
Disable/Enable
DCV Control
– Enables demand controlled ventilation (DCV) if valid CO
2
sensor value is
available and the unit has an economizer installed.
D:
R:
Disable
Disable/Enable

Carrier RTU Open v3 Specifications

General

Brand	Carrier
Model	RTU Open v3
Category	Controller
Language	English