background image

1

Electrostatic  discharge  can  affect 

electronic components. Take precau-

tions to neutralize electrostatic charge 

by touching your hand and tools to 

metal prior to handling the control.

Frequent changes to operating mode 

may cause system malfunction. 

Allow at least one minute between 

mode changes to allow the system to 

stabilize. 

INSTALLATION/

OPERATION 

INSTRUCTIONS 

CONTROLS 

507898-01

01/2019

THIS MANUAL MUST BE LEFT WITH 

THE OWNER FOR FUTURE REFER-

ENCE

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.

!

V0STAT54P-3 Indoor Unit  

Non-programmable  

Controller

IMPORTANT

!

IMPORTANT

!

©2018 Lennox Industries Inc.  Dallas, Texas, USA

VRF

Summary of Contents for V0STAT54P-3

Page 1: ...tem to stabilize INSTALLATION OPERATION INSTRUCTIONS CONTROLS 507898 01 01 2019 THIS MANUAL MUST BE LEFT WITH THE OWNER FOR FUTURE REFER ENCE 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 V0STAT54...

Page 2: ...ot install the controller on outside walls where there is unconditioned space on opposite side of wall or in locations where direct sunlight may be present Installation Clean controller using a clean damp cloth Do not spray cleanser on or around controller Do not install controller in areas where harmful gases containing sulfur or other damaging agents may exist or the controller may be damaged CA...

Page 3: ...tages higher than 12 VDC Do not operate controller with wet hands This manual provides the installation instructions for this controller Refer to the included wiring diagrams to con nect 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 Figure 1 Remove Controller from Back Cover CAUTI...

Page 4: ...Do not twist screw driver or use the screw driver to pry up the cover plate Use caution to prevent damage to casing 2 Do not twist the screw driver or use the screw driver to pry up the face plate or the casing could be damaged Use cau tion to avoid damaging the controller Do not insert the screw driver in the T1 Return Air sensor hole See Figure 2 3 Adjust the length of the two plastic spacers as...

Page 5: ...he back cover using factory provided screws or other fixing method as appro priate for the application See Figure 3 5 At the controller wire the field provided 4 conductor shielded cable to 12V COM HB HA terminals of the controller See Figure 4 6 Reattach the controller to the back cover ...

Page 6: ...tiple indoor units will damage controller and indoor unit boards 7 Connect the controller to one or more indoor units up to 16 Use 4 conductor shield ed cable to connect to the first indoor unit NOTE Wiring is polarity sensitive See Figure 5 COM 12V HB HA NOTE 1 Connect up to 16 indoor units 2 Ground cable shielding at indoor unit 3 All wiring is polarity sensitive COM 12V HB HA ...

Page 7: ...ction 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 COM 12V HB HA COM 12V HB HA COM 12V HB HA COM 12V HB HA 8 Daisy chain 2 conductor control wiring to each additional indoor unit using the HB HA terminals in the electrical control box of the indoor unit Do not ...

Page 8: ...Button Fan Speed Button Up Arrow Button Mode Button Cooling Mode Heating Mode Auto Mode Dry Mode Fan Mode Locked Function Centralized Controller Locked Cooling Setpoint Heating Setpoint Down Arrow Button Room Temperature Swing Fan Speed Sub ...

Page 9: ...n dehumidification mode NOTE fan speed cannot be ad justed during dry mode Fan Fan only no heating or cooling To set or change the room temperature setting setpoint Press the up arrow down arrow buttons to adjust the setpoint When in Auto mode separate heating and cooling setpoints can be set Press the Mode button to switch between heating and cooling setpoints NOTE Indoor units connected to a loc...

Page 10: ... and stop as shown in Figure 7 Do not move louvers manually only move louvers using the louver swing function on the controller NOTE Not available on all indoor unit types Lock Operation Some operational functions can be locked Use Settings No 29 33 to lock the functions of the controller See Table 2 Figure 7 Louver Swing Operation AUTO AUTO Locked Function Centralized Controller Locked ...

Page 11: ...on to accept the current setting and move backwards to the previous setting Press and hold the Fan speed button and the Mode button for 3 seconds to exit the setting Centralized Controller Locks Controller If a function of the indoor unit is locked by a centralized controller e g mode temperature setpoint swing etc the V0STAT54P controller will not be able to adjust that locked func tion The funct...

Page 12: ...ing off When power is restored the controller mode will be set to Auto mode off When Auto mode is being used the controller will not memorize the user setting of Auto mode before powering off When power is restored the controller mode will be set to the operation mode of indoor unit cooling or heating 2 Temperature unit C C The controller and connect ed indoor units will display C F F default The ...

Page 13: ...t Lock the maximum cooling setpoint on the controller The Lock icon will display on the controller when this setting is set to anything other than the default 6 Indoor unit addressing 0 63 Set the indoor unit address connected to the controller One to one connection of controller to indoor unit only 7 Indoor display board display 0 OFF Enable Disable the digital display of the indoor unit 1 Normal...

Page 14: ...roller default Return air sensing takes place at the controller 00 62 From indoor unit Return air sensing takes place at the specified indoor unit 10 Room tempera ture calibration 5 F C 5 F C Calibrate the room tempera ture by the set value 4 F C 4 F C 3 F C 3 F C 2 F C 2 F C 1 F C 1 F C 0 F C 0 F C Default 1 F C 1 F C 2 F C 2 F C 3 F C 3 F C 4 F C 4 F C 5 F C 5 F C ...

Page 15: ...r time 15 15 minutes default Set the minimum time gap between heating and cooling changeover 30 30 minutes 60 60 minutes 90 90 minutes 13 Auto mode dead band limit 3 F C 3 F C Default Set the cooling and heating setpoint gap of auto mode 4 F C 4 F C 5 F C 5 F C 6 F C 6 F C 7 F C 7 F C 14 Auto mode dead band limit type 0 Minimum dead band default Set the cooling and heating setpoint gap is a minimu...

Page 16: ...59 F 15 C 59 F 15 C default When the indoor unit is in heating when the coil tem perature is lower than the set value the indoor unit fan will force to run low speed or stop for preventing providing cold air 68 F 20 C 68 F 20 C 75 F 24 C 75 F 24 C 79 F 26 C 79 F 26 C 17 Indoor unit fan setting when cooling satisfied OFF default Set the indoor unit fan status when cooling is satisfied 1 Low speed 2...

Page 17: ... is satisfied 1 Low speed 2 Medium speed 3 High speed F Maintain last speed 19 Reserved 20 Reserved 21 Reserved 22 Auxiliary Alter native heater installation 0 No aux alt heat installed default Set the installation scenario of the auxiliary alternative heater 1 Aux alt heat installed at Indoor unit or in duct 2 Other aux alt heat installation ...

Page 18: ...lt 4 F C 4 F C 5 F C 5 F C 6 F C 6 F C 7 F C 7 F C 24 Auxiliary heat off 4 F C 4 F C The AUX ALT contact will open when the room tem perature is set value higher than the setpoint 3 F C 3 F C 2 F C 2 F C 1 F C 1 F C 0 F C 0 F C 1 F C 1 F C Default 2 F C 2 F C 3 F C 3 F C 4 F C 4 F C 25 Dehumidifier contact enabled 0 Disabled default Enable Disable the dehumid ifier contact 1 Enabled ...

Page 19: ...he dehumidifier contact control When the room temperature reaches the setpoint less this set value the dehumidi fier contact will open 4 F C 4 F C default 5 F C 5 F C 6 F C 6 F C 28 Unoccupied heating set back 54 F 12 C 54 F 12 C The set back setpoint of the heating setpoint of unoccupied 62 F 17 C 62 F 17 C default 70 F 21 C 70 F 21 C 29 Lock all buttons 0 Unlocked default Lock Unlock all control...

Page 20: ...FF button When locked the ON OFF button on this controller becomes disabled The indoor unit cannot be turned on or off from this controller 1 Locked 32 Lock up down buttons 0 Unlocked default Lock Unlock up down buttons When locked the up and down buttons on the controller become disabled 1 Locked 33 Lock swing 0 Unlocked default Lock Unlock controller function 1 Locked 34 Reset Controller 0 Unloc...

Page 21: ...oor unit query Press the Up arrow and Down arrow buttons navigate to the next previous the indoor unit address Press the Fan speed button to view the selected indoor unit indoor information Figure 8 Indoor Unit Query Indoor Unit Address Current Indoor Unit Order Number Total Indoor Unit Quantity ...

Page 22: ...uttons navigate to the next previous query num ber Press the Fan speed button again to return to the previous screen Figure 9 Indoor Unit Information Query Number Lower Upper See Table 3 for details about each indoor unit information query ...

Page 23: ...Lower T2 3 Upper T2A Lower T2B 4 Upper Indoor EXV opening thousands hundreds Lower Indoor EXV opening tens ones 5 Upper Room temperature sensor location Lower Controller room temperature sensor 6 Upper Contact 01 Lower Contact 01 status 7 Upper Contact 02 Lower Contact 02 status 8 Upper Contact 03 Lower Contact 03 status Table 3 Indoor Unit Information ...

Page 24: ...atus 11 Upper Lower Indoor unit type See indoor unit type table 12 Upper Indoor unit capacity kbtu thousands hundreds Lower Indoor unit capacity kbtu tens ones 13 Upper Lower Controller software version 14 Upper Lower Indoor unit software version 15 Upper Lower Master indoor unit address means no master indoor unit ...

Page 25: ...Description 1 V33B 3x3 Cassette 2 VWMB Wall Mounted 3 VMDB Medium Static Pressure Ducted 5 VVCB Vertical Air Handler 6 VHIB High Static Pressure Ducted 7 V22B 2x2 Compact Cassette 8 VCFB Ceiling Floor 9 Reserved 14 Reserved 21 Reserved ...

Page 26: ...button to access the fault code query The last 10 fault codes are stored n Indoor Unit o Outdoor Unit c Controller d MS Box Press the up down arrow buttons to scroll through the fault codes NOTE At the fault code query screen press Mode Fan Up and Down buttons and hold for 3 seconds will clear all the fault code records Error No Address Error Code ...

Page 27: ...it E2 T1 Room temperature sensor malfunction E3 T2 Middle of evaporator sensor malfunction E4 T2B Outlet of evaporator sensor malfunction E5 T2A Inlet of evaporator sensor malfunction E6 DC fan motor error E7 EEPROM failure Eb EEV malfunction Ed ODU fault EE High water alarm A0 Emergency stop D8 Remote off U4 MS self inspection error F8 MS error ...

Page 28: ...r module temperature sensor error E7 Discharge temp sensor error E8 Incorrect ENC 1 main sub configuration E9 Compressor driver error H0 Communication error between main control chip and inverter driver chip H2 Quantity of outdoor unit decreased H3 Quantity of outdoor unit increased H4 Compressor inverter module protection appears three times in 60 minutes X stands for corresponding module H5 Low ...

Page 29: ...tlet temperature sensor error F5 ODU subcooler inlet temperature sensor error F6 EEV A B C error Y will be 1 2 or 3 stands for A B C F9 Communication error between low ambient cooling kit LAC kit and ODU PCB P1 High pressure protection CI CO 4 4 3 2 Mpa or 638 464 PSIG P2 Low pressure protection CI CO 05 15 Mpa or 7 25 21 8 PSIG P3 Over current protection of inverter compressor P4 Compressor disch...

Page 30: ...r module error Compressor inverter module protection L1 Low voltage protection of DC bus Compressor inverter module protection L2 Over voltage protection of DC bus Compressor inverter module protection L4 Compressor module protection L5 Low drive frequency error L7 Incorrect phase sequence L8 Frequency differential error L9 Uniformed frequency error A0 Emergency stop A2 Power leakage protection ...

Page 31: ...first PCB to the other PCBs in the same MS box LL S1 S2 setting is not consistent to communication wiring Table 8 Wired Controller Error Codes Error Code Description F0 Communication Address error between indoor units and wired controller F1 Communication Wiring error between indoor units and wired controller E2 Controller temperature sensor error F2 Controller EEPROM error F8 Mode Selection Box e...

Page 32: ...32 Technical Support 1 844 GET VRF1 1 844 438 8731 vrftechsupport lennoxind com www LennoxVRF com Download the app from the Apple App Store or the Google Play store ...

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