Operating and installation instructions Fonda duo Contents 1. Quick instructions for sauna heater Check before taking a sauna bath Using the heater's controls 2. Information for users Sauna room Recommended sauna ventilation Heating the sauna Sauna stones Disconnecting electrical heating, terminal #55 (output) If the sauna heater does not heat up Control unit T2 Operating the control unit...
Rearrange the unit's stones at least once a year and replace crumbled stones. This enhances air circulation between the stones, extending the life of the heating elements. Further information about sauna baths is available at: www.helo.fi 1.2 Using the heater's controls The main switch is located in the base of the heater.
Operating and installation instructions Fonda duo 2.2 Recommended sauna ventilation 1000 mm 500 mm Illustration 1 Recommended ventilation in the sauna 1. Sauna room 3. Electric sauna heater 5. Flue or channel 2. Bathroom 4. Exhaust air valve 6. The sauna room's door 7.
Operating and installation instructions Fonda duo 2.4 Sauna stones Good quality sauna stones should meet the following requirements: The stones must withstand heat and heat variation caused by vaporization of the water thrown on the stones. The stones must be rinsed before use in order to avoid odor and dust. The stones must have an uneven surface so that the water ”sticks”...
Operating and installation instructions Fonda duo 2.5 Disconnecting electrical heating, terminal #55 (output) The electric heating disconnecting applies to homes with an electric heating system. The sauna heater outputs 230-240V to terminal #55 when the heater is activated, i.e. this signal can be used to (partly) deactivate house heating when the sauna heater switches on the current to the heating elements.
Operating and installation instructions Fonda duo Meaning of activated symbols: The sauna heater is on / Drying of sauna room. The lighting in the sauna room is on. A preselected time has been set. The water tank is full / Water in the water tank / The water tank is empty (flashes) The button lock is on.
Operating and installation instructions Fonda duo 2.8 Operating the control unit Resting mode: When the control unit is in the resting mode its screen is blank. The screen is automatically activated when the control unit detects an object (e.g. a hand) closer than 5 cm from its front surface.
Operating and installation instructions Fonda duo Timer Setting preselected time. Start Time Activate You can set a preselected time by selecting the fourth menu on the front page. The preselected time is the time when you want the heater to start heating. A symbol in the 00:00 lower part of the display will indicate that a preselected time has been set.
Operating and installation instructions Fonda duo Emptying the tank Empty the water tank after each time it is used. This action reduces the risk of any limescale deposits which over time accumulate on the inside of the tank. Empty the tank as follows (see illustration). As the drainage hose and the water in the tank gets scalding hot during use of the heater it is safest to drain the tank after the heater has cooled down! Remove the water tank’s drainage hose from its support (located behind the sauna heater, underneath the...
Operating and installation instructions Fonda duo 3.2. Connecting the sauna heater to the mains The sauna heater must be connected to the mains by a qualified electrician and in compliance with current regulations. The electric sauna heater is semi-permanently connected to the mains. Use H07RN-F (60245 IEC 66) cables, or alternatively an equivalent or higher quality cable.
Operating and installation instructions Fonda duo 3.4. The sauna heater's safety clearances Safety clearance (mm) *) = Absolute **) = See section 3.3 dimension 20 min. min. 20 min. 30 30 min. Output Sauna room The heater's min. clearance Stones Volume Height From sides...
Operating and installation instructions Fonda duo 3.5. Installation steps 1. Secure the wall mounts in the wall with the accompanying screws (6 x 40 and 6 x 16). Note the heater’s minimum clearance. If the sauna heater is going to be fitted with legs you don't need to attach the bottom brackets.
Operating and installation instructions Fonda duo 3.6. Locating the junction box for the connection cable in the sauna Sauna heater Illustration 2 Junction box location A = Minimum safety clearance 1. Recommended location for junction box. 2. A metal junction box should be used within this area. 3.
Operating and installation instructions Fonda duo 3.7. Outline diagram when T2 is control unit Terminal block Limiter Sensor Heater 1 Blue 2 White 3 Red 4 Yellow Control panel Heater A Brown B White 11 Green 12 Yellow Sensor Control panel Silicone 4 * 0.25 LiYCY 4 * 0.25 Heater...
Operating and installation instructions Fonda duo 3.9 The settings menu The setting menu includes the following submenus: Sauna - Bath Type Priority • Default Priority • Sauna Priority • Steam Priority - Standby • Temperature drop at standby. Range of setting is 0 – 20°C (32 – 68°F). The control panel lowers the sauna room temperature by the set value when the heater enters standby-mode.
Operating and installation instructions Fonda duo 4. ROHS Ympäristönsuojeluun liittyviä ohjeita Anvisningar för miljöskydd Tämän tuotteen käyttöiän päätyttyä sitä ei Denna produkt får inte kastas med saa hävittää normaalin talousjätteen vanliga hushållssopor när den mukana, vaan se on toimitettava inte längre används. Istället ska den sähkö- ja elektroniikkalaitteiden kierrätykseen levereras till en återvinningsplats tarkoitettuun keräyspisteeseen.
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