Lennox V0STAT51P-2 User Manual

1
©2018 Lennox Industries Inc.
Dallas, Texas, USA
INSTALLATION/
OPERATION
INSTRUCTIONS
CONTROLS
507595-05
05/2018
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.
V0STAT51P-2 Touch Screen
Programmable Local Controller
General
The V0STAT51P-2 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 be-
fore installation.
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
Requirements
Be sure that power supply has been turned
o󰀨 before beginning installation. This control-
ler should be used only as described in this
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 di-
rect sunlight may be present.
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.

Lennox V0STAT51P-2 Specifications

General

Product Type	Thermostat
Stages	2 Heat/2 Cool
Compatibility	Conventional and Heat Pump Systems
Voltage	24 VAC
Operating Temperature	32°F to 122°F (0°C to 50°C)
Power Method	Battery or Hardwired

Summary

Installation Procedures

Connecting Indoor Units

Wiring instructions for single and multiple indoor units.

Mounting the Controller

Step-by-step guide for physically attaching the controller.

Operating Modes and Controls

ON/OFF Control

How to turn the indoor unit on or off via the controller.

Cooling Mode Operation

Instructions for operating the system in cooling mode.

Heating Mode Operation

Instructions for operating the system in heating mode.

Auto Mode Operation

How to use the automatic cooling/heating mode.

Dry Mode Operation

Instructions for operating the system in dry mode.

Fan-Only Operation

Fan Speed Adjustment

Temperature Setpoint Adjustment

How to adjust the desired temperature setpoint.

Schedule Management Features

Create or Modify Schedule

Setting up or changing daily operating schedules.

Copy and Paste Schedule

Holiday Schedule Setup

Reset Timer Parameters

Override Function Settings

Error Code Handling and Descriptions

Error Code Display

View Error Code History

Error Code Descriptions

Centralized Controller Lock Functionality

Lock Specific Functions

Service Configuration Options

Set System Type

Identifying the system as heat recovery or heat pump.

Set Temperature Unit Display

Set Temperature Setpoint Range

Defining limits for cooling and heating setpoints.

Set Fan Control

Adjust Auxiliary/Alternative Heat

Lock Function

Change User Password

Set Room Temperature Sensor Location

Set Room Temperature Sensor Calibration

Set Override Function

Advanced System Information

Indoor Unit Operating Data

Indoor Unit Error Code History

HHE Relay Dry-Contact Status

Firmware and Settings Management

Copy/Change Settings or Update Firmware

Managing settings and firmware via USB.

Export Settings to USB

Saving controller configuration to a USB drive.

Import Settings from USB

Loading controller configuration from a USB drive.

Update Software

Installing new software versions onto the controller.

Software Update Best Practices

Reset Settings

Restoring the controller to factory default settings.