Lennox V0STAT51P-3 Operation Manual
©2019 Lennox Industries Inc. Dallas, Texas, USA
VRF
!
WARNING
Improper installation, adjustment,
alteration, service or maintenance can
cause property damage, personal injury
or loss of life.
Installation and service must be
performed by a licensed professional
HVAC installer (or equivalent) or service
agency.
CAUTION
To ensure proper system performance and
reliability, Lennox does not recommend
operation of VRF systems during any phase
of construction. Construction debris, low
temperatures, harmful vapors, and operation
of the unit with misplaced lters can damage
the units. Failure to follow these guidelines
will result in the warranty being voided.
IMPORTANT
Frequent changes to operating mode
may cause system malfunction. Allow at
least one minute between mode changes
to allow the system to stabilize.
This manual must be left with the
owner for future reference.
INSTALLATION/
OPERATION
INSTRUCTIONS
V0STAT51P-3 Touch Screen
Programmable Local Controller
CONTROLS
507900-01
03/2019
General
The V0STAT51P-3 is a wired touch screen
programmable local controller for VRF Heat
Recovery and Heat Pump indoor units with
convenient timed schedules for daily operation.
These instructions are intended as a general
guide and do not supersede local codes in any
way. Consult authorities having jurisdiction before installation.
Requirements
Be sure that power supply has been turned
o before beginning installation. This controller should be used only as described in this
manual.
Shipping and Packing List
Package 1 of 1 contains;
1 – Wired Controller
1 – CR2032 Lithium battery
2 – Phillips screws
2 – Plastic spacers
2 – 1/8” polymer toggle anchors
1 – Installation and operation manual
Tools Needed
#2 Phillips screwdriver
Slotted precision screwdriver
Level
1/8” wall anchor tools
Controller Placement
Avoid installing local controller in high load
or heat loss areas such as exterior walls or
walls that are against unconditioned spaces,
near entry doors and windows, or where direct sunlight may be present.
1
Contents
General ........................................................................................................................................1
Requirements ..............................................................................................................................1
Shipping and Packing List ..........................................................................................................1
Tools Needed...............................................................................................................................1
Controller Placement ..................................................................................................................1
Installation ...................................................................................................................................4
Connecting to One Indoor Unit ............................................................................................5
Connecting to Multiple Indoor Units ....................................................................................6
Mounting the Controller .......................................................................................................7
Home Screen Display ................................................................................................................10
Operation ...................................................................................................................................14
ON/OFF .............................................................................................................................14
Error Code Display ............................................................................................................15
Mode Settings............................................................................................................................16
Cooling Mode Operation ...................................................................................................16
Heating Mode Operation ..................................................................................................17
Auto Mode Operation ........................................................................................................18
Dry Mode Operation ..........................................................................................................20
Fan-Only Operation ...........................................................................................................21
Temperature Setpoint .......................................................................................................22
Space Temperature and Space Humidity Display ............................................................23
Temperature Unit Switching (ºF/ºC) ...................................................................................24
Fan Speed .........................................................................................................................25
Swing .................................................................................................................................26
Weekly Schedule Settings Quick Access ..........................................................................27
Override Settings ...............................................................................................................28
Schedule Management..............................................................................................................29
Setup Schedule Templates ................................................................................................31
Paste a Schedule ..............................................................................................................32
Copy and Paste a Schedule Template ..............................................................................32
Copy a Schedule ..............................................................................................................32
Rename a Schedule Template ..........................................................................................34
Delete a Schedule Template .............................................................................................35
Add a Daily Schedule Action .............................................................................................36
Delete a Daily Schedule Action .........................................................................................37
Rename a Daily Schedule Action ......................................................................................37
Edit a Daily Schedule Action .............................................................................................38
Setup a Weekly Schedule .................................................................................................39
Tap the Add button. ...........................................................................................................40
Rename a Weekly Schedule .............................................................................................41
Delete a Weekly Schedule ................................................................................................42
Modify a Weekly Schedule ................................................................................................43
Select the Weekly Schedule to Use ..................................................................................44
Setup Holiday and Special Day Schedules .......................................................................45
Add a Holiday and Special Day Schedule .........................................................................46
Rename a Holiday and Special Day Schedules ................................................................47
Modify a Holiday and Special Day Schedules ...................................................................48
Delete a Holiday and Special Day Schedules ...................................................................49
Override Scheduled Settings .............................................................................................50
General Settings Conguration .................................................................................................52
Time Format Settings ........................................................................................................53
Time Settings .....................................................................................................................53
Theme Settings .................................................................................................................54
2
Brightness Settings ...........................................................................................................54
Controller Touch Tone (Sound) Settings ............................................................................ 55
Standby Interface (Screen Saver) Settings .......................................................................56
Standby (Screen Saver) Duration Settings .......................................................................57
Swing Angle Settings ................................................................................................................. 58
Daylight Savings Time Settings .................................................................................................58
Room Temperature and Humidity Display Settings ...................................................................61
Contractor Information Input ......................................................................................................62
Service Menu.............................................................................................................................63
Access Service Menu ........................................................................................................63
Change Password .............................................................................................................64
Master / Sub Wired Controller Settings .....................................................................................65
Master / Sub Wired Controller Operation ..................................................................................66
Indoor Unit Address Settings .....................................................................................................68
Indoor Unit Display Board & Buzzer (Sound) Settings ..............................................................69
Room Temperature Sensor Settings .........................................................................................70
Auto Mode Settings ...................................................................................................................72
Draft (Cold Blow) Prevention Settings .......................................................................................74
Stand-by Fan Speed Settings....................................................................................................75
Indoor Unit Static Pressure Settings..........................................................................................76
Occupancy Sensor Function Settings .......................................................................................77
Dry Mode Settings .....................................................................................................................78
Auxiliary / Alternate Heat Settings .............................................................................................79
Setpoint Limit Settings ...............................................................................................................81
Locking Function Settings .........................................................................................................82
Advanced Information................................................................................................................83
Device Operation Information Query .................................................................................84
Device Operation Error History Query ...............................................................................86
HHE Dry Contact Relay Interface Status Query ................................................................90
Controller Information ........................................................................................................91
Firmware and Setting Information .............................................................................................92
Software Version ...............................................................................................................93
Controller Software Update ...............................................................................................94
Indoor Unit Software Update .............................................................................................96
Setting Parameters Backup ...............................................................................................99
Setting Parameters Import ..............................................................................................100
Reset Settings .................................................................................................................101
Help .........................................................................................................................................102
Get On-screen Help ........................................................................................................102
3
Installation
!
WARNING
Be sure that power supply has been
turned o before beginning installation.
Do not operate controller with wet hands.
!
CAUTION
Do not install controller in areas where
harmful gases containing sulfur or
other damaging agents may exist or the
controller may be damaged.
Clean controller using a clean, damp
cloth. Do not spray cleanser on or around
controller.
IMPORTANT
Electrostatic discharge can aect electronic
components. Take precautions to neutralize
electrostatic charge by touching your hand
and tools to metal prior to handling the control.
IMPORTANT
Read all of the information in this manual
before using this controller. All wiring must
conform to local and national building and
electrical codes and ordinances. This is a
12 VDC controller. Do not install on voltages
higher than 12 VDC.
• This manual provides the installation
instructions for this controller. Refer to the
included wiring diagrams to connect the
controller to the indoor unit.
• The controller uses low voltage. Keep a
minimum distance of 12” (305 mm) between
low voltage control wire and high voltage
power wires.
Power wiring between controller and rst
indoor unit:
• Minimum 18 AWG stranded, shielded cable
up to 164 feet (50 m).
• Ensure there are no gaps between the controller back cover and the mounting surface.
• Fill any holes in the wall behind the control-
ler to avoid false readings from inltration.
• Ground the shielded control wiring.
• Do not use a megger to test insulation.
Communication wiring between indoor
units:
• Minimum 18 AWG stranded, shielded cable.
4
Connecting to One Indoor Unit
Connect the controller to one indoor unit main control board using 4-conductor shielded 18 GA
cable. Connect to terminals 12V,COM,HA,HB. See Figure 1.
HB
HB
HA
NOTE - 1. Connect up to 16 indoor units
2. Ground cable shielding at indoor unit
3. All wiring is polarity sensitive
Figure 1. Connect Controller to Single Indoor Unit Wiring Connections
COM
12V
HA
COM
12V
5
Connecting to Multiple Indoor Units
Connect the controller to multiple indoor units, up to 16. Use 4-conductor shielded cable to connect
to the rst indoor unit, then daisy chain control wiring to each indoor unit using the HA/HB terminals
in the electrical control box of the indoor unit. Do not daisy chain 12V power cable. See Figure 2.
NOTE – All of the indoor units connected to the controller must be on the same refrigerant circuit,
connected to the same outdoor unit.
HB
HA
HB
HA
COM
COM
12V
12V
NOTES - 1. Connect “+12V” on the controller to terminal “+12V” on the first indoor
unit only. 12V connection provides power to controller; connection to
multiple indoor units will damage controller and indoor unit boards.
2. Ground cable shielding at each indoor unit.
4. Use stranded, shielded, 18 GA cable.
5. Connect up to 16 indoor units.
HB
HA
COM
12V
Figure 2. Connect Controller to Multiple Indoor Units Wiring Connections
CAUTION
Connect “12V” on the controller to
terminal “12V” on the rst indoor unit
only. 12V connection provides power to
controller; connection to multiple indoor
units will damage controller and indoor
unit boards.
HB
HA
COM
12V
6
Mounting the Controller
1. Remove the back cover from the controller. See Figure 3.
Figure 3. Remove Back Cover from Controller
2. Attach the back cover to the wall using screws. See Figure 4.
Figure 4. Attach Back Cover to Wall
7
3. Connect the controller to one indoor unit main control board using 4-conductor shielded 18 GA
cable. Connect to terminals 12V,COM,HA,HB on the back of the controller.
HA HB
12V COM
HB
HA
COM
P12V Q
Figure 5. Connect Cabling
4. Insert the controller into the bottom snap joints of the back cover at an angle. See Figure 6.
Figure 6. Insert Controller into Back Cover
8
5. Push the controller back toward the wall until it “snaps” into place. See Figure 7.
Figure 7. Snap Controller Into Place
9
Home Screen Display
3
4
7
5
8
2
10
6
9
1
Figure 8. Home Screen Display 1
15
11
14
13
12
Figure 9. Home Screen Display 2
10
16
17
18
Table 1. Home Screen Display
Number Display Item Description
1 ON/OFF button Tap to turn the indoor unit on or o.
2 Settings button Tap to access the menu screen.
3 Time Display Displays the current system time.
Select Auto mode when the indoor unit is ON, and then
4 Auto Mode Settings
the indoor unit will run in Auto mode (the icon illuminates
after selection).
Select Cooling mode when the indoor unit is ON, and
5 Cooling Mode Settings
then the indoor unit will run in Cooling mode (the icon
illuminates after selection).
Select Heating mode when the indoor unit is ON, and
6 Heating Mode Settings
then the indoor unit will run in Heating mode (the icon
illuminates after selection).
Select Dry mode when the indoor unit is ON, and then the
7 Dry Mode Settings
indoor unit will run in Dry mode (the icon illuminates after
selection).
Select Fan mode when the indoor unit is ON, and then the
8 Fan Mode Settings
indoor unit will run in Fan mode (the icon illuminates after
selection).
9
Temperature Unit Settings
Switch the temperature unit: display in
Fahrenheit/Celsius temperature.
10 Operation Mode Displays the mode of operation of the indoor unit.
11
12
Fan Speed Control
Button
Indoor Temperature
and Humidity Display
Select fan speed, and tap “Auto”, “High”, “Med”, or “Low”
to conrm the selection.
Display the temperature and humidity of the room in
which the indoor unit is located.
13 Setpoint Displays the setpoint.
14
15
16
17
18
Setpoint Adjustment
Slider
Vertical Swing Angle
Display
Horizontal Swing Position Display
Weekly Schedule
Display
Override Status
Display
Adjust the setpoint by pressing and sliding.
Displays the vertical swing angle of the indoor unit; tap to
access the vertical swing angle settings.
Display the horizontal swing angle of the indoor unit; tap
to enter the horizontal swing angle settings.
Display the setting status of the weekly schedule status,
and tap to access the weekly.
Display the Override status and tap here to set the
Override settings.
11
Table 2. Special Status Symbol Displays
No. Icon Name Description
1 Fan
2 Cool
3 Heat
4 Dry
5 Cooling operation in Auto mode
6 Heating operation in Auto mode
7 Centralized controller lock
8 Group control
9 Occupancy sensor
Displays when the indoor unit is in Fan
mode.
Displays when the indoor unit is in
Cooling mode.
Displays when the indoor unit is in
Heating mode.
Displays when the indoor unit is in Dry
mode.
Displays when the indoor unit is in Auto
mode providing cooling operation.
Displays when the indoor unit is in Auto
mode providing heating operation.
Displays when some functionality is
locked by a centralized controller.
Displays when more than one indoor
unit is connected to the controller.
Displays when an occupancy sensor
is active.
10 Help Tap to see the Help screens.
Displays when the indoor unit is in
11 Mode conict prompt
mode conict with the outdoor unit
(heat pump systems)
12 Auto Dry function Displays when auto dry function is ON.
13 Master controller Displays if the controller is a master.
14 Master controller Displays if the controller is a sub.
15 Outside air ducted indoor unit
16 ON/OFF lock
Displays if the connected indoor unit is
providing outside air.
Displays when some functionality is
locked by settings on this controller.
17 Mode lock Displays when Mode is locked.
12
No. Icon Name Description
18 Setpoint lock Displays when Setpoint is locked.
19 Schedule lock Displays when Schedule is locked.
20 Defrosting or oil return
20 Cold air prevention
Displays when the outdoor unit is in
defrost or oil return operation.
Displays during period of time before
the coil warms to the determined cold
air prevention temperature. The fan
will not run during this time period.
13
Operation
NOTE - Indoor units connected to a local controller may also be controlled by a centralized controller. Indoor units respond to the last command sent. It is recommended that indoor units be controlled from a single source of control, either local controller or centralized controller but not both,
to avoid conicts in commands.
ON/OFF
Tap the On/O button to turn the indoor unit on or o.
Figure 10. ON/OFF Operation
14
Error Code Display
When the connected indoor units or outdoor unit has an error, the original set temperature interface will display the error code.
Tap the error display area and to open the error code description interface.
Figure 11. Error Code Display
15
Mode Settings
Cooling Mode Operation
When the indoor unit is powered on, tap COOLING in the operating mode selection interface.
The selected icon will illuminate when the indoor unit runs in Cooling mode. The Cooling icon is
displayed in the upper right corner of the home page.
To adjust the setpoint, tap the setpoint slider and drag the slider to the new setpoint temperature.
The default setpoint range is 62°F to 86°F (17°C to 30°C).
Figure 12. Cooling Mode Operation
16
Heating Mode Operation
When the indoor unit is powered on, tap HEATING in the operating mode selection interface. The
selected icon will illuminate when the indoor unit runs in Heating mode. The Heating icon is displayed in the upper right corner of the home page.
To adjust the setpoint, tap the setpoint slider and drag the slider to the new setpoint temperature.
The default setpoint range is 62°F to 86°F (17°C to 30°C).
Figure 13. Heating Mode Operation
17
Auto Mode Operation
When the indoor unit is powered on, tap AUTO in the operating mode selection interface. The selected icon will illuminate when the indoor unit runs in Auto mode. The Auto icon or the Cooling icon
is displayed in the upper right corner of the home page.
NOTE - During Auto mode, both operation mode (cooling or heating) setpoints display on the Home
screen. The current operation mode setpoint displays larger than the non-current operation
mode.
In Auto mode the Cooling setpoint range is 68°F to 86°F (20°C to 30°C), the Heating setpoint range
is 62°F to 81°F (17°C to 27°C).
To adjust the setpoint of either cooling or heating while in Auto mode, tap the appropriate setpoint,
either cooling or heating. That setpoint will display as the larger number. Drag the temperature
slider to the new setpoint temperature. If the setpoint you adjusted is not the current operation
mode, after 10 seconds, the current operation mode setpoint will display as the larger number.
NOTE - The setpoint deadband between cooling and heating setpoints is setup in the Settings
menu.
Figure 14. Auto Mode Operation
18
Figure 15. Auto Mode Setpoints
19
Dry Mode Operation
When the indoor unit is powered on, tap DRY in the operating mode selection interface. The selected icon will illuminate when the indoor unit runs in Dry mode. The Dry icon is displayed in the
upper right corner of the home page.
Fan speed cannot be adjusted during Dry mode.
Figure 16. Dry Mode Operation
20
Fan-Only Operation
When the indoor unit is powered on, tap FAN in the operating mode selection interface. The selected icon will illuminate when the indoor unit runs in Fan mode. The Fan icon is displayed in the
upper right corner of the home page.
The indoor unit fan operates without heating or cooling.
Figure 17. Fan-Only Mode Operation
21
Temperature Setpoint
To adjust the setpoint, tap the setpoint slider and drag the slider to the new setpoint temperature.
The default setpoint range is 62°F to 86°F (17°C to 30°C). The setpoint range can be adjusted using the Setpoint Limit screen in the Service menu.
Figure 18. Temperature Setpoint
22
Space Temperature and Space Humidity Display
On the main screen of the controller, you can view the current setpoint, space temperature and
space humidity.
When the master wired controller chooses the Follow function, the Space Temp will display the
temperature and corrected value detected by the temperature sensor of the master wired controller
itself.
When the master and Sub wired controllers do not choose the Follow function, their Space Temp
will display the temperature detected by their own temperature sensors (without a corrected value).
The temperature sampling range is -16°F to 156°F (-9°C to 70°C). The humidity sampling range
is 0% to 100%.
Figure 19. Setpoint, Space Temperature & Space Humidity Display
23
Temperature Unit Switching (ºF/ºC)
Tap TEMPERATURE UNIT SETTING at the lower right corner to switch the temperature display
unit between Fahrenheit and Celsius.
Figure 20. Fahrenheit or Celsius Temperature Display
24
Fan Speed
Tap Auto, High, Med, or Low to change the fan speed. The corresponding icon illuminates after
selection.
Figure 21. Fan Speed Operation
25
Swing
Tap the Vertical Swing Angle Settings icon and the Horizontal Swing Angle Settings icon to enter
the swing angle settings interface.
Figure 22. Swing Settings
26
Weekly Schedule Settings Quick Access
Tap the Weekly Schedule Settings icon to enter the weekly schedule settings interface.
Figure 23. Quick Access to Weekly Schedule Settings
27
Override Settings
Tap the Override icon and the Override delay time selection box displays.
Figure 24. Override Settings
28
Schedule Management
NOTE – If schedules are used and a centralized controller is installed on the system, controller
functions should not be locked from the centralized controller.
Tap the Schedule button to access the schedule management settings interface.
Set by week, and run dierent set statuses at dierent times of the day.
Before setting Schedule Templates, Schedule Setup, and Holiday and Special Day Schedule, you
must rst complete the date and time settings.
Figure 25. Tap Schedule Button to access Schedule Settings
29
If the system time is detected to be earlier than 01:00 AM Dec 30, 2017 (the factory default time is
2017-12-30), the setting date and time box will display.
Tap “YES” to open to the date and time settings screen, or tap “NO” to return to the previous
page.
Figure 26. Set System Date & time
30
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