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Flexit UNI 2 - User Manual

Flexit UNI 2
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User Manual
Air Handling Unit & Automatic Control
UNI 2
111537EN-11
2019-10
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Summary

Important Safety Instructions

General Safety Precautions

Essential safety guidelines for operating the ventilation unit, covering fire, shock, and injury risks.

Understanding Product Symbols

Symbol Definitions for Safety and Operation

Explains symbols used to denote danger, caution, and important notes for safe use and maintenance.

Ventilation System Functional Description

Fans (M1, M2) Operation

Details fan function, speed adjustment, and initial setup for optimal airflow.

Filters (FI1, FI2) and Air Quality

Describes the role of high-grade filters in maintaining clean air and unit efficiency.

Rotary Heat Exchanger (HR-R)

Explains the heat recovery process using the rotor wheel exchanger.

Electric Heating Element (EB1)

Covers the function of the electric heater and its safety mechanisms against overheating.

Temperature Sensor (B1, B4) Functions

Identifies the supply air and outdoor air sensors and their measurement roles.

Door Operation and Removal

Wall-Mounted Unit Door Handling

Instructions for opening, rotating, and unhooking the door on wall-mounted units.

Door Removal Safety Warning

Cautionary advice regarding the door's weight and safe removal procedures.

Floor-Mounted Unit Door Handling

Guide to operating the door on floor-mounted units, including hinge stops and straps.

Ceiling-Mounted Unit Door Handling

Steps for door operation on ceiling units, emphasizing safety features like hinge stops and door straps.

CI60 Control Panel Overview

CI60 Panel Components Identification

Labels and descriptions of all buttons, LEDs, and potentiometers on the CI60 control panel.

Using the CI60 Ventilation Control

CI60 Unit General Operation

Basic operation, control unit communication, and the unit's response to button presses.

Adjusting Airflow with CI60

Using switches and potentiometers to increase/decrease air supply and set airflow levels.

CI60 Temperature and Heating Control

Setting supply air temperature and enabling/disabling additional heating via the control panel.

CI60 Filter Replacement Alerts

Understanding the filter change indicator and the need to reset it after replacement.

CI60 Alarm Indicators and Faults

Interpreting alarm signals and their associated fault conditions, including flashing and steady lights.

Resetting CI60 Alarms and Faults

Procedure for resetting alarms after maintenance or repair, noting manual reset requirements for specific faults.

C1600 Control Panel Overview

C1600 Panel Layout and Indicators

Identification of buttons, the display screen, and indicator LEDs on the C1600 control panel.

Using the C1600 Ventilation Control

C1600 General Use and Idle Mode

Overview of the C1600 control unit's display, communication, and automatic transition to idle mode.

C1600 Menu Navigation and Help System

How to move through menus, select options, confirm actions, and access help contextually.

C1600 Initial Startup and Settings

Steps for setting language and date during the initial startup sequence before accessing the main menu.

C1600 Operational Status Monitoring

Understanding the green LED indicator for normal operation and how system issues are reflected.

C1600 Main Menu Options

Fan Speed Control (MIN, NORMAL, MAX)

Selecting and adjusting fan speeds for supply and extract air, including the MAX TIMER function.

MAX TIMER Functionality

Details on using the MAX TIMER for temporary speed boosts and adjusting its duration.

Accessing System Settings

Navigating to the Settings menu to configure various parameters like temperature, timers, and language.

Setting Supply Air Temperature

Adjusting the desired supply air temperature and controlling the heating element's ON/OFF status.

Setting MAX TIMER Duration

Configuring the time interval for the MAX TIMER function.

Programming Daily;Weekly Timers

Creating custom schedules for fan speed and temperature based on time and day.

Adjusting Time and Date Settings

Manually setting the current time and date for accurate operation.

Changing Control Panel Language

Selecting the preferred language for the control panel display.

Filter Alarm Management

Adjusting the filter change interval and resetting the filter alarm indicator.

Interpreting Alarm Messages

Understanding various alarm conditions, messages, and the necessary reset procedures.

Viewing Operating Status Information

Displaying real-time temperature data, timer activity, and system performance percentages.

C1600 Advanced User Functions

Accessing Advanced Menu with PIN

Procedure for entering the required PIN code to access advanced settings.

Advanced User Menu Structure

Overview of the advanced menu's capabilities for monitoring, configuration, and troubleshooting.

Temperature Regulation and Cooling Configuration

Setting up temperature control, cooling functions, and neutral zones for optimal climate.

Neutral Zone and External Temperature Control

Defining neutral zones for smoother temperature regulation and overriding settings via external inputs.

Fan Control and Air Volume Compensation

Configuring fan speeds, adjusting airflow for specific needs, and setting timer parameters.

Configuration: Sensors, Fire;Smoke, Communication

Calibrating sensors, setting up fire/smoke detection, and configuring communication modes like Home/Away.

Standby Mode and Operational Time Tracking

Adjusting the time delay for idle mode and viewing total operating hours for various unit functions.

Service Menu: De-icing Settings

Enabling and configuring the de-icing function, including start temperature, period, and fan speed adjustments.

C1600 Control Menu Navigation Tree

A visual map showing the hierarchical structure of all menus and submenus within the C1600 control panel.

Cleaning and Maintenance Procedures

How to Change Air Filters

Detailed steps for removing and replacing unit filters, with emphasis on proper installation and unit checks.

Fan Cleaning and Fan Housing Removal

Instructions for cleaning fan blades and safely removing fan housings for maintenance.

Replacing Rotor Brush Strips

Guide to changing worn brush strips on the rotor, including adjustment or replacement steps.

Rotor Belt Tightening and Rotor Cleaning

Procedures for tightening the rotor belt and cleaning the rotor assembly.

Exterior Unit Cleaning Guidelines

Recommendations for cleaning the unit's exterior surfaces safely and effectively.

Regular Maintenance Schedule

Troubleshooting Unit Faults

CE Declaration of Conformity

Flexit UNI 2 Specifications

General IconGeneral
Supply air temp.Adjustable
Heat recovery efficiencyUp to 85%
Operating temperature-20°C to +40°C
TypeAir handling unit
MountingWall-mounted
Fan typeEC fan
Control systemIntegrated
Power supply230V

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