RET B + RF - Thermostat DANFOSS - Free user manual and instructions

USER MANUAL RET B + RF DANFOSS

Electronic dial setting thermostat with LCD display User & Installation Instructions

Installation Instructions Important note RF products: Ensure that there are no large metal objects, such as boiler cases or other large appliances, in line of sight between the transmitter and receiver as these will prevent communication between thermostat and receiver. Installation Instructions

Temperature Accuracy ±1°C Contact Type SPDT Type 1B Transmitter frequency 433.92 MHz (RF models) Transmitter range 30m max (RF models) Power Supply 2 x AA/MN1500 alkaline batteries Control Pollution Situation Degree 2 Rated Impulse Voltage 2.5 kV Designed to meet BS EN 60730-2-9 (EN 300220 for RF) Ball Pressure Test 75°C Temperature Range 5-30°C Dimensions (mm) 85 wide x 86 high x 42 deep4 Mounting Fix at a height of 1.5m approx from the oor, away from draughts or heat sources such as radiators, open res or direct sunlight. Installation Instructions GB5 Wiring (not RF models) RET-B (3050 12/01)

Installation Instructions GB6 DIL switch settings Heating selection Slide the DIL switches to the settings required (see below) Cooling selection COOL ON/OFF 6 CYCLES

ON/OFF - boiler switches ON when below set temperature and OFF when above CHRONO - energy saving feature which res the boiler at regular intervals to maintain a set temperature, achieving a constant ambient environment for the user.

use 6 Cycles for radiator systems

use 3 Cycles for under oor heating COMPRESSOR DELAY Installation Instructions GB7 Receiver Wiring (RF only)

RX1 RX2 and RX3 Note: 1) For mains voltage operated systems, link terminal 2 to mains live supply 2) Power supply to unit must not be switched by timeswitch Locking & Limiting Installation Instructions GB8 Commissioning (RF only) If the thermostat and the receiver have been supplied together in a combined pack, the units have been paired in the factory and no commissioning is required (RX1 only). Step 1 RET B-RF Position the setting dial to number

1. Remove dial, press & hold LEARN

button for 3 seconds (located under setting dial). Do not replace the setting dial yet NOTE: Thermostat now transmits signal continuously for 5 mins. Step 2 RX1 Press and hold buttons PROG and CH1 until green light ashes. LEARN Installation Instructions GB9 Step 3 RX2/RX3 For RX2 or RX3 repeat steps 1 and 2 for each thermostat and channel, leaving at least 5 mins between the commissioning of each thermostat. Step 4 RET B-RF To replace the thermostat setting dial, position the dial to number 1. Installation Instructions GB10 What is a room thermostat? ... an explanation for householders. A room thermostat simply switches the heating system on and o 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 o 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. Neither does the setting a ect 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. User Instructions GB11 The heating system will not work if a timeswitch or programmer has switched it o . The way to set and use your room thermostat is to nd 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 18°C – 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. 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 di erent 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. Room thermostats need a free ow of air to sense the temperature, so they must not be covered by curtains or blocked by furniture. Nearby electric res, televisions, wall or table lamps may prevent the thermostat from working properly. User Instructions GB12 User Instructions Display The LCD displays actual room temperature until the setting dial is moved. Setting the temperature Turn setting dial to required temperature. The selected temperature will ash in the LCD to signify it is showing set temperature. After a short period the display stops ashing and shows actual room temperature. Thermostat status (heat mode only) A ame symbol will be lit whenever the thermostat is calling for heat. User Instructions GB13 Thermostat status (cool mode only) A snow ake symbol will be lit whenever the thermostat is calling for cooling. If this is seen to ash, the thermostat output is delayed for a short period to prevent compressor damage. Low battery indication A battery symbol will ash in the display when batteries require replacement. Batteries should be replaced within 15 days, after which the thermostat will turn o the load it is controlling. When this happens “Of” will be displayed. IMPORTANT: alkaline batteries must be used. User Instructions GB14 RET B-LS model only This model is tted with an Auto/O switch. When the switch is set in “I” position the thermostat controls at the temperature set by the setting dial. When set to “O” the thermostat output is turned o and “Of” is displayed. RET B-NSB model only This model is tted with a Day/Night switch. When the switch is set to the “Sun Symbol”, the thermostat controls at the temperature set by the setting dial. When set to the “Moon symbol”, the thermostat controls at 4°C below the temperature set by the setting dial. NOTE: if used to control cooling, thermostat controls 4°C higher, with switch in MOON position. User Instructions GB15 Instructions d’installation Remarque importante pour version sans l (RF):Veiller à ce qu’aucun gros objet métal- lique (caisson de chaudière ou autres gros appareils domestiques) ne fasse obstacle aux communications entre le thermostat et le récepteur. Instructions d’installation

KLEMME 6 NUR BEI RX3

RET B (RF)/RET B-LS (RF)/

RET B (RF)/RET B-LS (RF)/