Lennox V0STAT54P-2 Istruzioni per l'installazione

Electrostatic discharge can aﬀ ect

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.

Dallas, Texas, USA

INSTALLATION/

OPERATION

INSTRUCTIONS

CONTROLS

507596-06

05/2018

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-2 Indoor Unit

Non-programmable

Controller

Lennox Industries Inc.

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-pro-

grammable local controller that controls

up to 16 VRF indoor units. These instruc-

tions are intended as a general guide and

do not supersede local codes in any way.

Consult authorities having jurisdiction be-

fore installation.

Requirements

• Four-conductor cable is required for

installation.

• Be sure that power supply has been

turned oﬀ before beginning installation.

• This controller should be used only as

described 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.

Power wiring between controller and

ﬁ rst indoor unit:

• Minimum 18 AWG stranded shielded

cable up to 164 feet (50 m).

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

• 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

inﬁ ltration.

• Ground the shielded control wiring.

• Do not use a megger to test insulation.

Communication wiring between indoor

units:

• Minimum 18 AWG stranded shielded

cable.

CAUTION

Read all of the information in this man-

ual before using this controller. All wiring

must conform to local and national build-

ing and electrical codes and ordinances.

This is a 12 VDC controller. Do not in-

stall on voltages 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

1. Remove the controller from the back

cover using a ﬂ at head screw driver as

shown. See Figure 1.

Return air (T1) sensor.

Do not insert screw

driver.

Use these slots

to remove the

back cover.

CAUTION

IMPORTANT

Figure 2. Installation

2. Attach the back cover using ﬁ eld-provided screws.

3. At the controller, wire the ﬁ eld-provided 4-conductor shielded cable to X / Y / GND (E)

/ 12V terminal of the controller. See Figure 3.

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

mounted ﬂ ush 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.

Figure 3. Connection at Controller

4-conductor wiring

Figure 4. Wire to One Indoor Unit

4. Reattach the controller to the back cover.

5. Connect the controller to one or more indoor units, up to 16. Use 4-conductor shield-

ed cable to connect to the ﬁ rst indoor unit. NOTE - Wiring is polarity sensitive. See

Figure 4.

GND

(E) 12V

Y12V X YE

NOTE - 1. Connect up to 16 indoor units

2. Ground cable shielding at indoor unit

3. Connect terminal “GND/(E)” on the controller to terminal “E” on the indoor unit

CAUTION

Connect “12V” on the controller to

terminal “12V” on the ﬁ rst indoor unit

only. 12V connection provides power

to controller; connection to multiple

indoor units will damage controller and

indoor unit boards.

Speciﬁ cations

Input voltage 12 VDC

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

Ambient humidity RH40%~RH90%

Table 1. Speciﬁ cations

Figure 5. Wire Multiple Indoor Units

12V XYE12V XYE12V XYE

GND

(E) 12V

NOTES - 1. Connect “R/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. Connect terminal “GND (E)” on the controller to terminal “E” on the

indoor unit.

3. Ground cable shielding at one end of each length of cable, except at

controller.

4. Use stranded, shielded, 18 GA cable.

5. Connect up to 16 indoor units.

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

terminals 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 seconds for initialization The indoor unit cannot

be controlled by the controller until initialization 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 dehumidiﬁ cation 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 local controller may also be controlled by a central-

ized 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 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 inactive.

User cannot change fan speed

using this controller.

Lock

temperature

increase

The Up-arrow button is inactive.

User cannot raise setpoint using

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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