ATC VARENA 500 - User Manual

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Overview

Function Description
Usage Features
Maintenance Features

The ATC Varena Digital Electric Radiators are designed for efficient and programmable heating, offering daily and weekly scheduling capabilities. These radiators are EcoDesign Compliant, emphasizing energy efficiency and environmental responsibility.

Function Description

The Varena radiators operate by heating a special oil contained within their aluminum elements, providing a consistent and comfortable warmth. They feature a large TFT-LCD screen with an orange backlight and white images for clear legibility, controlled by five keys. The core function is to maintain a desired room temperature through various operating modes and programmable settings.

The radiator can be switched between Standby and operational modes using a dedicated Standby key, which has a raised bump for easy identification by touch. In case of power failure, the radiator remembers its previous operating mode, temperature, and lock status for up to four days. Daily and weekly programs are permanently stored, even after extended power disconnections.

Usage Features

The Varena radiator offers several operating modes to suit different heating needs:

Comfort Mode: This is the default mode when the radiator is first connected or switched from Standby. Users can select a desired room temperature between 12 °C and 30 °C in 0.5 °C increments using the '+' and '-' keys. This mode is typically used during periods when the room is occupied.
Economy Mode: This mode automatically sets a temperature between 0.5 °C and 4.5 °C lower than the selected comfort temperature. The difference can be adjusted by the user. Economy mode is suitable for short periods of absence to prevent excessive temperature drops.
Anti-Frost Mode: Factory-set at 7 °C, this mode is designed to prevent freezing during long periods of absence.
Program Mode: This mode allows the radiator to automatically switch between Comfort, Economy, and Heating Off temperatures based on a user-defined daily and weekly program. A 24-hour bar chart on the display visually represents the program, with each one-hour interval programmable as comfort, eco, or heating off. The current time interval flashes to indicate the active set point.
Manual Mode: This mode allows users to temporarily override the programmed settings to boost heating (On) or turn it off (Off) for a set duration, ranging from half an hour to 365 days. After the set time expires, the radiator returns to its previous operating mode. The desired temperature in manual mode can be set between 7 °C and 30 °C.

The radiator includes several advanced control functions:

Open Window Function: When enabled in the configuration menu, the radiator automatically stops heating if it detects a sudden temperature drop (4 °C in 20 minutes), typically caused by an open window or door. To resume heating, the user must press the Standby key. This function contributes to energy efficiency.
Adaptive Start Control Function: When enabled, the radiator intelligently starts heating up to two hours before a programmed "on" time to ensure the room reaches the desired temperature precisely when scheduled. This function analyzes the upcoming two hours, calculates the necessary heating time based on the unit's heating speed, and progressively increases the set point temperature. This also contributes to energy efficiency.
Keyboard Lock: Users can lock the keyboard by pressing and holding the '-' and '+' keys for 2.5 seconds, preventing accidental changes to settings. The padlock icon appears on the screen when locked.

Configuration: The configuration menu allows users to adjust four parameters: screen backlight level at rest (0 to 100%), screen backlight time (1 to 240 seconds), and enabling/disabling the Open Window Function and Adaptive Start Control Function.

Editing Day, Time, and Program: The day, time, and program can be edited by pressing and holding the mode key for 2.5 seconds. This process involves setting the day of the week, hour, and minutes, followed by programming each one-hour interval of the day as comfort, economy, or heating off. Programs can be copied from one day to the next, simplifying setup.

Maintenance Features

The Varena radiators require minimal maintenance. Surfaces should be cleaned regularly with PH neutral products; abrasive or granular cleaners should be avoided. It is recommended to switch off the electric power before cleaning.

Failure to keep the radiators clean can lead to dust burning and depositing on the wall above the heater, creating dark streaks or patches. This type of marking is a direct result of inadequate cleaning of the heater and its surrounding area. The manufacturer disclaims responsibility for any damage caused by such neglect.

In the event of any oil leakage, the manufacturer or ATC should be contacted, as repairs requiring the opening of the oil tank must only be performed by qualified personnel.

The appliance is not intended for outdoor use and should not be located underneath an electrical connection. Proper air circulation around the heater is crucial, requiring a minimum distance of 100 mm from curtains, furniture, and the floor. In bathrooms, the heater must be installed outside protected zones (Zone 2 in the UK, Zone 3 in Ireland), maintaining at least 0.6 m from baths or showers, and switches should not be accessible from the bath or shower.

The power cord, if damaged, must be replaced by the manufacturer, its after-sales service, or similarly qualified persons to prevent hazards. The electric supply line should be protected with a high sensitivity differential device (RCBO).

The product is designed for responsible recycling at the end of its life, with specific instructions for disposal at selective collection centers for electrical and electronic appliances or return to the distributor.