Honeywell DT90A Digital Room Thermostat User Guide

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Operating indicators / Indicadores de funcionamiento / Indicateurs de fonctionnement /  

Bedrijfsmodussymbolen / Betriebsanzeige / Indicatore di funzionamento / Kezelési  

útmutató / Stavové symboly / Wskaźniki pracy regulatora / Stavové symboly  

GB  

E

HC = 1  

Heat/cool changeover  

What is a room thermostat? …an explanation for householders  

Cambio calefacción/aire acondicionado  

Chauffage/Réfroidissement  

Overschakeling warmen/koelen  

Wechsel heizen/kühlen  

A room thermostat simply switches the heating system on and off as necessary.  

It works by sensing the air temperature, switching on the heating when the air  

temperature falls below the thermostat setting, and switching it off once this set  

temperature has been reached. Turning a room thermostat to a higher setting will  

not make the room heat up any faster. How quickly the room heats up depends on  

the design of the heating system, for example, the size of boiler and radiators.  

F

3 s  

NL  

D

DT90A  

Digital Room Thermostat  

GB  

Heating demand indicator  

I

E

Cambiamento caldo/freddo  

Hűtés/fűtés váltás  

Indicador de demanda de calefacción  

HU  

CZ  

PL  

SK  

F

Indicateur de demande de chauffage  

User Guide / Guía del Usario / Utilisation / Gebruikershandleiding / Bedienung /  

Guida per l’Utente / Használati Utasítás / Návod k Použití / Obsługa / Návod na Použitie  

NL  

Změna topení/chlazení  

Warmtevraagsymbool  

Neither does the setting affect how quickly the room cools down. Turning a room thermostat to a lower setting will result in the  

room being controlled at a lower temperature, and saves energy.  

3 s  

D

Zmiana ogrzewanie/chłodzenie  

Zmena kúrenia a chladenia  

Anzeige Heizlastanforderung  

I

Indicatore di richiesta riscaldamento  

The heating system will not work if a time switch or programmer has switched it off.  

GB  

E

CZ  

PL  

SK  

Room temperature  

Aktuální pokojová teplota  

Odczyt temperatury  

Izbová teplota  

HU  

Hőigény jelzés  

Indicación de temperatura ambiente  

Lecture de la température ambiante  

Ruimtetemperatuurweergave  

Raumtemperatur-Istwert  

CZ  

Symbol požadavku na sepnutí kotle  

The way to set and use your room thermostat is to find the lowest temperature setting that you are comfortable with, and then  

leave it alone to do its job. The best way to do this is to set the room thermostat to a low temperature – say 18ºC – and then  

turn it up by one degree each day until you are comfortable with the temperature. You won’t have to adjust the thermostat  

further. Any adjustment above this setting will waste energy and cost you more money.  

F

PL  

Wskaźnik włączonego palnika  

NL  

D

SK  

Symbol požiadavky na zopnutie kotla  

I

Lettura temperatura ambiente  

Aktuális helyiséghőmérséklet  

If your heating system is a boiler with radiators, there will usually be only one room thermostat to control the whole house.  

But you can have different temperatures in individual rooms by installing thermostatic radiator valves (TRVs) on individual  

radiators. If you don’t have TRVs, you should choose a temperature that is reasonable for the whole house. If you do have  

TRVs, you can choose a slightly higher setting to make sure that even the coldest room is comfortable, then prevent any  

overheating in other rooms by adjusting the TRVs.  

Frost protection is not available in cooling operation  

GB  

Frost protection  

HU  

La protección antihielo no está activada en modo refrigeración  

E

Protección antihielo  

La protection antigel n’est pas active en mode froid  

F

Fonction de protection antigel  

Vorst beveiliging is niet beschikbaar in koeling.  

NL  

Vorstbeveiliging  

GB  

E

CZ  

PL  

SK  

Set temperature, inquiry  

Zobrazení žádané teploty  

Odczyt temperatury zadanej  

Informácia o teplote  

Frostschutz ist im Kühlbetrieb nicht möglich  

D

Frostschutz  

Room thermostats need a free flow of air to sense the temperature, so they must not be covered by curtains or blocked by  

furniture. Nearby electric fires, televisions, wall or table lamps may prevent the thermostat from working properly.  

Consulta de temperatura deseada  

Lecture de la température demandée  

Uitlezen van de ingestelde temperatuur  

Eingestellte Temperatur anzeigen  

Interrogazione temperatura impostata  

Beállított hőmérséklet lekérdezése  

La protezione antigelo non è attivata in modalità raffrescamento  

I

Protezione antigelo  

F

A fagyvédelem nem elérhető hűtési üzemmódban.  

HU  

Fagyvédelem  

NL  

D

Protimrazová ochrana je v chladícím režimu vypnuta  

CZ  

Protimrazová ochrana  

Ochrona przeciwzamarzaniowa nie jest aktywna w trybie chłodzenie  

PL  

Ochrona przeciwzamarzaniowa  

I

Protimrazová ochrana je v chladiacom režime vypnutá  

SK  

Protimrazová ochrana  

HU  

GB  

E

I

Fault indicator  

Indicatore anomalia  

Hiba jelzés  

GB  

E

Set temperature, adjustment  

HU  

CZ  

PL  

SK  

Indicador de fallo  

Indicateur de défaut  

Storingssymbool  

Störunganzeige  

°C  

°C  

=

=

Ajuste de temperatura deseada  

Réglage de la température demandée  

Wijzigen van de ingestelde temperatuur  

Eingestellte Temperatur ändern  

Modifica temperaura impostata  

Kívánt hőmérséklet beállítása  

Nastavení žádané teploty  

F

Výskyt poruchy  

Usterka  

F

NL  

D

NL  

D

Výskyt poruchy  

I

HU  

CZ  

PL  

SK  

GB  

E

Low battery indicator  

Ustawianie temperature zadanej  

Nastavenie požadovanej teploty  

Indicador de pilas agotadas  

Indication d’usure de piles  

F

NL  

D

Symbool voor batterijvervanging  

Anzeige für Batteriewechsel  

Indicazione cambio delle batterie  

Kimerült elem jelzés  

I

2 x LR6 AA Alkaline  

GB  

E

HU  

CZ  

PL  

SK  

Switch ON/OFF (frost protection enabled)  

This product and its associated documentation and packaging are protected by various intellectual property rights  

belonging to Honeywell Inc and its subsidiaries and existing under the laws of the UK and other countries. These  

intellectual and property rights may include patent applications, registered designs, unregistered designs, registered  

trade marks, unregistered trade marks and copyrights. Honeywell reserves the right to modify this document, product  

and functionality without notice. This document replaces any previously issued instructions and is only applicable to  

the product(s) described. This product has been designed for applications as described within this document. For use  

outside of the scope as described herein, refer to Honeywell for guidance. Honeywell cannot be held responsible for  

misapplication of the product(s) described within this document.  

Botón de encendido / apagado (protección antihielo activada)  

Bouton Marche/Arrêt (avec protection anti-gel)  

AAN/UIT-toets (vorstbeveiliging actief)  

Indikace vybité baterie  

2 s  

F

Wskaźnik wyładowania baterii  

Indikácia vybitých batérii  

1

NL  

D

Schalter Ein / Aus (Frostschutz aktivieren)  

I

Interruttore ON / OFF (protezione antigelo abilitata)  

KI/BE kapcsoló (fagyvédelem aktivizálása)  

HU  

CZ  

PL  

SK  

2 s  

Spínač Zapnuto/Vypnuto (aktivovaná protimrazová ochrana)  

Włącz/Wyłącz (aktywna ochrona przeciwzamarzaniowa)  

Spínač Zapnutý/Vypnutý (aktivovaná protimrazová ochrana)  

Manufactured for and on behalf of the Environment and Combustion Controls Division of Honeywell Technologies Sàrl,  

ACS-ECC EMEA, Z.A. La Pièce 16, 1180 Rolle, Switzerland, by its Authorised Representative Honeywell Inc.  

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http://europe.hbc.honeywell.com  

© 2008 Honeywell International Inc.  

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Name	Honeywell DT90A Digital Room Thermostat User Guide
Make	Honeywell
Language	English
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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• Honeywell

Honeywell DT90A Digital Room Thermostat User Guide Overview

Summary of Contents

• Page 1: Operating indicators Heat/cool changeover What is a room thermostat? A room thermostat simply switches the heating system on and off as necessary. Turning a room thermostat to a higher setting will not make the room heat up any faster. The heating system will not work if a time switch or programmer has switched it off. Frost protection is not available in cooling operation. Room thermostats need a free flow of air to sense the temperature. Fault indicator Low battery indicator
• Page 2: Digital room thermostat Installation Parameter flow-chart Minimum ON/OFF time Cycle rate Proportional band width Temperature measurement offset Upper setpoint limit Lower setpoint limit Installer mode