Lennox V0STAT54P-2 User manual

Dallas, Texas, USA

INSTALLATION/

OPERATION

INSTRUCTIONS

CONTROLS

507596-04

04/2017

THIS MANUAL MUST BE LEFT WITH

THE OWNER FOR FUTURE REFERENCE

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.

Frequent changes to operating mode

may cause system malfunction.

Allow at least one minute between

mode changes to allow the system to

stabilize.

IMPORTANT!

V0STAT54P-2 Indoor Unit

Non-programmable Controller

Electrostatic discharge can affect elec-

tronic components. Take precautions

to neutralize electrostatic charge by

touching your hand and tools to metal

prior to handling the control.

IMPORTANT!

Shipping and Packing List

Package 1 of 1 contains;

1 – Wired Controller

1 – Installation and operation manual

2 – Plastic spacers

General

The V0STAT54P-2 is a wired non-program-

mable local controller that controls up to 16

VRF indoor units. These instructions are

intended as a general guide and do not su-

persede local codes in any way. Consult au-

thorities having jurisdiction before installation.

Requirements

• Four-conductor cable is required for in-

stallation.

• Be sure that power supply has been

turned off before beginning installation.

• This controller should be used only as de-

scribed in this manual.

• Do not 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.

CAUTION

!CAUTION

Power wiring between controller and ﬁrst

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

controller to avoid false readings from

inﬁltration.

• Ground the shielded control wiring.

• Do not use a megger to test insulation.

Communication wiring between indoor

units:

• Minimum 18 AWG stranded shielded

cable.

Do not operate controller with wet

hands.

CAUTION

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) be-

tween low voltage control wire and high

voltage power wires.

IMPORTANT!

Figure 1. Remove Controller from Back Cover

1. Remove the controller from the back cover using a ﬂat head screw driver as shown. See

ﬁgure 1.

Figure 2. Installation

4. At the controller, wire the ﬁeld-provided 4-conductor shielded cable to X / Y / GND / 12V

terminal of the controller. See ﬁgure 3.

2. Adjust the length of the two plastic spacers as needed to allow the controller to be mounted

ﬂush with the wall. NOTE – Be sure to provide for future maintenance by allowing enough

slack in the wiring to allow the controller to be removed from the wall if needed. See ﬁgure 2.

3. Attach the back cover using ﬁeld-provided screws.

Figure 3. Connection at Controller

4-conductor wiring

X 12VY GND

Figure 4. Wire to One Indoor Unit

5. Reattach the controller to the back cover.

6. Connect the controller to one or more indoor units, up to 16. Use 4-conductor shielded cable

to connect to the ﬁrst indoor unit. NOTE - Wiring is polarity sensitive. See ﬁgure 4.

COM 12VX Y 12V X Y E

NOTE - Connect up to 16 indoor units

NOTE - Ground cable shielding at indoor unit

Speciﬁcations

Input voltage 12 VDC

Ambient temperature 23~110°F (-5~43°C)

Ambient humidity RH40%~RH90%

Table 1. Speciﬁcations

Figure 5. Wire Multiple Indoor Units

COM 12VX Y

12V X Y E 12V X Y E 12V X Y E

NOTE - Connect up to 16 indoor units

NOTE - Ground cable shielding at one end of each length of cable

7. Daisy chain 3-conductor control wiring to each additional indoor unit using the X Y E termi-

nals in the electrical control box of the indoor unit. Do not daisy chain 12V power cable. See

ﬁgure 5. NOTE - Wiring is polarity sensitive.

Description of Buttons

Power

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

Operation

After powering on the controller, wait 30 sec-

onds for initialization The indoor unit cannot

be controlled by the controller until initializa-

tion is complete.

Start/Stop Operation

Press the power button.

• Controller ON: LED display lit.

• Controller OFF: LED display not lit.

Set Operation Mode

Press the Mode button to scroll through the

mode selections.

• Cool – System operates in cooling mode.

• Heat – System operates in heating mode.

• Auto -- System operates in auto mode.

• Dry -- System operates in dehumidiﬁca-

tion mode. NOTE - fan speed cannot be

adjusted 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 local con-

troller may also be controlled by a centralized

controller. Indoor units respond to the last

command sent. It is recommended that in-

door units be controlled from a single source

of control, either local controller or central-

ized controller but not both, to avoid conﬂicts

in commands.

MODEFAN SPEED

FAN SPEED

COOL

HEAT

ROOM TEMP.

Figure 6. Function Lock Indicator

Function Lock

Indicator

Louver Swing Operation

Press both the up-arrow button and the down-

arrow button simultaneously to start louver

auto swing operation. The louvers will move

automatically until stopped.

Press both the up-arrow button and the

down-arrow button simultaneously again

to stop the swing operation. The louvers

will remain in position where stopped. Do

not move louvers manually; only move

louvers using the auto swing function.

NOTE - Not available on all indoor unit types.

Lock Operation

Some operational functions can be locked.

See table 2

Lock Type Operation

Simultaneously press the buttons

shown below

User Experience

Lock operation

mode

The Mode button is inactive.

User cannot change operation

mode using this controller.

Lock fan speed The fan speed button is inac-

tive. User cannot change fan

speed using this controller.

Lock temperature

increase

The Up-arrow button is inactive.

User cannot raise setpoint us-

ing this controller.

Lock temperature

decrease

The Down-arrow button is inac-

tive. User cannot lower setpoint

using this controller.

Lock ON/OFF

status

The Power button is inactive

User cannot turn the indoor unit

on or off using this controller.

Lock all buttons

All buttons are inactive. User

cannot make any changes

to the indoor unit using this

controller.

Unlock all buttons All buttons are active. User

can make any changes to the

indoor unit using this controller.

Table 2. Lock Operation Functions

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