Finlandia JM-20 User's Manual
Contents
1. The overheating limiter bulb Do not remove the overheating limiter bulb JM17 JM20 o Eco S foo gt fea Overheating limiter Thermostat Timer 1 8 120V Timer 1h 240V Fitting Supply terminal block Lamp Lamp 240 V Control box plastic part Scale plate Scale plate ZSV 330 ZSK 762 ZSJ 290 ZSA 720 ZSK 555 ZSK 779 ZSJ 245 ZSA 530 ZSA 480 ZSJ 3 ZSA 670 JM 30 JM 30 JM 30 10 11 12 13 14 15 16 17 18 19 20 Knob Mounting rakk Rock guard Wooden fence Water cask Axlelock Control compartment cover Bulb cover Heating element Heating element Heating element ZSA 660 ZSJ 170 ZSJ 180 ZSJ 190 ZSJ 200 ZSA 580 ZSV 150S ZSK 750 ZSJ 110 JM 17 ZSJ 320 JM 20 ZSJ 330 JM 302. heat protection such as mineral board fitted directly on the wall or ceiling may cause the temperature of the wall and ceiling materials to rise dangerously high 2 1 1 Room construction general information FRAMING CEILING HEIGHT INSULATION 2 x 4 Dry Douglas Fir 16 o c No higher than 7 O R11 Fiberglas with foil back in walls and ceiling foil facing into room See local codes Is not required in most residences See local codes for commercial If drywall is used apply 1 x 2 nailers so that wall and ceiling boards can be attached to solid wood Use kiln dried clear T amp G softwood such as California Redwood Western Red Cedar Alaska yellow Cedar with moisture content not exceeding 1196 DRYWALL PANELING VENTILATION MIN SQ IN INLET AND OUTLET JM 17 JM 20 JM 30 9 3 sq in 6000 mm 2100 mm MINIMUM 59 1 16 1500 mm MAXIMUM 6 10 11 16 Y AIR OUT lt 700 mm 38 700 965 mm 1 8 500mm me ca 27 H p E MIN 27 9 16 150 mm 1 7 480 mm C MIN 5 7 8 qui AIR IN gt Ik a D MAD Figure 4 Sauna room BENCHES Use matching wood of vertical grain with 2 x 2 tops 1 2 spacing and 2 x 4 facing fastenin
3. heater Cover tubing with wooden molding provided coil up excess tubing and place under heater close to floor Be sure to cover thermostat bulb with protective metal cover by threading bulb through holes in cover and fasten bulb cover to wall with screws provided Also take care when nailing protective wood strips over capillary tubing so that nails do not puncture tubing If punctured entire thermostat must be replaced See figure 7 3 4 Safety Railing If a safety railing is built around the heater the minimum distances given in fig 8 must be observed min 2 9 16 65 mm 5 1 8 130 mm min 11 13 16 Figure 6 Location of the mounting rack of the heater CEILING 3 75mm THERMOSTAT BULB COVER 5 THERMOSTAT BULB o lt CAPILLARY TUBING E E THERMOSTAT TUBING E S M woon MoLpiNG V NAILS to 1 n o z i oo N 2 lt 49 27 m 9 USENET Figure 7 Installation of the thermostat sensor min 3 16 min 3 16 STEAM DISTRIBUTOR ROCK GUARD THERMOSTAT SAFETY GUARD CONNECTION BOX FLEX CONDUIT RESET BUTTON Figure 8 Safety railing of the heater 8 Figure 9 Connections and parts of the heater 3 5 Electrical Connections The heater may only be connected t
4. in fig 5 and table 1 It is absolutely necessary to ensure that the installation is carried out according to these values Neglecting them can cause a risk of fire Only one electrical heater may be installed in the sauna room Outlet ventilation openings shall be located at the top of the wall as close to the ceiling as bossible and MIN DISTANCES TO COMBUSTIBLE MATERIALS shall comply with the minimum size requirements for inlet ventilations openings See fig 4 t Sauna shall be provided with intended ventilation as min 9 16 S required per the local code authorities 15 mm ming 1 8 gt 11 13 16 3 2 5 Hygienic Conditions of the Sauna Room 300 EL OU Good hygienic standards of the sauna room will make jini site bathing a pleasant experience 9 The use of sauna seat towels is recommended to za zn E ZA Zn prevent sweat from flowing onto the platforms The 2B towels should be washed after each use Separate towels should be provided for guests S It is advisable to vacuum or sweep the floor of the sauna room in connection with cleaning In addition 8 the floor may be wiped with a damp cloth Y EE The sauna room should be thoroughly washed at least every six months Brush the walls platforms by using a scrubbing brush and sauna Figure 5 Min di
5. the sauna as this may cause a risk of fire Excessive moisture content may also cause damage to the electrical equipment not place any combustible material over the sauna heater towels bathing suits wooden bucket or dipper e Keep away from the heater when it is hot The rocks and outer surface of the heater may burn your skin e Do not throw too much water on the rocks The evaporating water is boiling hot e Use only clean tap water on the rocks Do not use poolor spa water as chlorine gas can be produced and the heating elements can be damaged e Donotlet young handicapped or ill people bathe in the sauna on their own e Consult your doctor about any health related limitations to bathing e Parents should keep children away from the hot heater e Consult your child welfare clinic about taking little babies to the sauna age temperature of the sauna time spent in the warm sauna e Bevery careful when moving the sauna as the platform and floors may be slippery e Never go to a hot sauna if you have taken alcohol strong medicines or narcotics e not exceed 30 min in the sauna at one time as excessive exposure can be harmful to health The sauna should not be used as an endurance test e Hyperthermia occurs when the internal temperature of the body reaches a level several degrees above the normal body temperature of 98 6 F 37 C The symptoms of hyperthermia include an incre
6. does not belong in a Sauna 3 7 Testing of Sauna heater Before testing heater fill rock cavity with igneous stones provided with heater and fasten rock guard at top of heater See item 1 1 Piling of the Sauna rocks 1 After Sauna heater has been properly wired according to appropriate wiring diagram and local codes turn Sauna breaker on in the main breaker panel Note Electrician must label Sauna breaker 2 Turn thermostatic heat control to on position this is located on your heater Set timer to 10 or 15 minutes 3 Within 5 minutes you should be able to feel heat from heater elements when holding your hand over heater 4 f Sauna does not heat refer to troubleshooting information 5 It is normal for smoke to appear during the first heating as protective element coating needs to burn off TURN SAUNA ON FOR 1 HOUR BEFORE USING THE FIRST TIME TO ELIMINATE SMOKING TIMER 1 8h 120V 60Hz HEATING ELEMENTS 850W 120V 1 7 1000W 120V 2 0 LIMIT CONTROL THERMOSTAT TIMER 120V 60Hz 16 8h 1 JM 17 1 7kW 120V JM 20 2 0kW 120V TIMER 1h 230V 60Hz HEATING ELEMENTS 1500W 240V LIMIT CONTROL THERMOSTAT LINE 1 LINE 2 GROUND JM 30 3 0kW 240V Fig
7. limiter is reset by pressing the reset button which is located in bottom of heater See figure 3 To reset the overheating limiter locate the reset button and push upward until contactor kicks in If reset button continues to trip contact a qualified service person Do not remove the overheating limiter bulb See spare parts no 2 Prior to pressing the button the cause of the fault must be found e are the rocks crumbled and pressed together e has the heater been on for a long time while unused e has the heater been banged or shaken 1 4 Throwing Water on Heated Stones The air in the sauna room becomes dry when warmed up Therefore it is necessary to throw water on the heated rocks to reach a suitable level of humidity in the sauna 4 The humidity of the air in the sauna room is controlled by the amount of water thrown on the rocks A correct level of humidity makes the bather s skin sweat and makes breathing easy By throwing water on the rocks with a small ladle the bather should feel the effect of air humidity on his skin Both too high a temperature and air humidity will give an unpleasant feeling Staying in the hot sauna for long periods of time makes the body temperature rise which may be dangerous The maximum volume of the ladle is 2 decilitres The amount of water thrown on the rocks at a time should not exceed 2 dl because if an excessive amount of water is poured on the rocks only part of it will eva
8. ND O 7 N EEEE eS m o o028 vbo oct gt CN CN pis D TET yx S cto amp e V SAUNA wu NS e 29 9 Y gt e JM Instructions for installation and use of Electric Sauna Heater LISTED 6 21 SAUNA HEATER Purpose of the electric heater The JM heater is designed for the heating of family saunas to bathing temperature It is forbidden to use the heater for any other purposes The guarantee period of a JM electric heater in family use is one year and in communal use 3 months Please read the user s instructions carefully before using the heater NOTE These instructions for installation and use are intended for the owner or the personin charge of the sauna as well as for the electrician in charge of the electrical installation of the heater After completing the installation the person in charge of the installation should give these instructions to the owner of the sauna or to the person in charge of its operation Congratulations on your choice A CONTENTS 1 INSTRUCTIONS FOR USE 3 1 1 Piling of the Sauna rocks ane a aaga EEE RE E 3 1 2 Heating of the Sauna 3 1 397 ior coetui euer eae ees ERE iene 3 13 15 ce Lc E 3 23 2 Thermostat viet eom e
9. ain time The heater starts when the timer has turned the switch back to the instantly on section that is at number one 1 After this the heater will be on for about 1 hour unless the switch is turned to zero before that At zero O the supply to the elements is cut off and the heater is switched off See fig 2 The JM 30 heater is equipped with 1 hour timer without pre set time function See fig 2 If you wish to use the full 60 min cycle turn the timer knob past the first 1 to number 2 or 3 on the dial Then turn backward to the large 1 until a click is heard Leave knob at that setting and Sauna will operate for 1 hour before shutting off automatically JM 17 JM 20 HEATER ON section O 1h Bum THERMOSTAT TIMER PRE SET section 1 8h JM 30 HEATER ON section O 1h THERMOSTAT 4 t i NA Figure 2 Control panel Example 1 You want to go jogging and have a sauna bath after that The estimated duration of your run is 5 hours Turn the timer clockwise over the scale O 1 to the pre set section scale 1 8 at number 4 The timer will start and after four hours the heater will come on Because it takes about one hour for the sauna to be heated it will be warm and ready for bathing after about 5 hours that is when you come back from your run Example 2 If you want to bathe immediately and thus do not want to use the pre set timing the timer mu
10. ase in the internal temperature of the body dizziness lethargy drowsiness and fainting The effects of hyperthermia include a Failure to perceive heat b Failure to recognize the need to exit the room c Unawareness of impending hazard d Fetal damage in pregnant women e physical inability to exit the room f Unconsiciousness 1 7 Warning signs Warning signs are furnished with Sauna heater The metal CAUTION sign should be fastened to wall close to heater in a visible place The metal WARNING sign should be fastened outside to the Sauna room door 1 8 Malfunctions If the heater does not heat check the following points e the electricity has been switched on e timer has been switched to a section where the heater should be heated 0 1 e the thermostat shows a higher figure than the temperature of the sauna e the fuses to the heater are in good condition Note The stud does not always come out when the fuse has blown e the temperature guard has not gone off The timer sound is heard but the elements are not heated Reset the guard to its functioning position by pressing it so that a clicking sound is heard See item 1 3 2 Thermostat and 1 3 3 Overheating limiter 2 THE SAUNA ROOM 2 1 Insulation and Wall Materials of the Sauna Room In an electrically heated sauna all the massive wall surfaces which store plenty of heat such as bricks glass blocks plaster etc must be suff
11. ater should be dumped out after every use Scour buckets and dippers occasionally when film collects from usage Use plastic bucket liner in bucket to prevent water leakage Scrub benches with a soft brush using soap and water or a mild disinfectant when needed about once a week in commercial Saunas or depending upon sauna usage For sanitation each bather should sit or lie on a towel this will prolong bench life Remove Super Dek and wash waterproof floor with disinfectant e g Pine Sol about once a week or as often as needed Hose off Super Dek to clean To maintain beautiful appearance of Sauna heater remove water stains by wiping a damp cloth occasionally Harvia Sauna Heaters require no special maintenance when properly installed by a qualified electrical contractor After 1 years of usage the rocks may need replacing if they have crumbled or powered Harvia Sauna strongly recommends a floor that can be easily cleaned concrete ceramic tile or a poured type of flooring When this is provided the Sauna can be easily cleaned and kept in a sanitary condition with little effort A carpet is NOT recommended for a Sauna A carpet becomes a perfect breeding ground for bacteria in the moist conditions of a Sauna and a carpet promotes the spread of foot diseases such as athlete s foot For same reasons wooden duckboard should not be used for flooring In new construction a floor drain should also be provided especially in
12. commersial Saunas for sanitary cleaning and maintenance Seal wood around glass in door inside and outside with 7hompson s Water Seal to prevent warpage When Sauna wood becomes stained from perspiration the wood may lightly sanded with fine sandpaper to restore beautiful appearance We do not recommend stains or sealers as toxic vapors may appear when heated However 2 coats of Thompson s Water Seal may be used on the wood benches in a commersial Sauna so that the wood may be more easily cleaned and kept sanitary the wood will not absorb perspiration The Sauna room will heat faster if the higher vent is keptin a closed position when heating The lower vent may always be kept in an open position Required warning signs should be posted according to the instructions 3 11 Guarantee This HARVIA SAUNA heater is guaranteed for one year date of purchase and includes all heater parts such as heating elements controls contactors etc This guarantee covers faults in manufacture and material only and includes the exchange of new parts supplied by the manufacturer or manufacturer s agent after the faulty parts have been returned to same The replacement of parts under warranty does not extend the warranty period beyond the original one year The guarantee does not cover defects caused by normal wear and tear defects caused by improper installation poor maintenance or failure to follow the manufacturer s instructions for insta
13. figure 1 The rocks should be fitted loosely and not wedged between the heating elements Very small rocks should not be put into the heater at all Therocks should completely cover the heating elements However they should not form a high pile on the elements The rocks disintegrate with use Therefore they should be rearranged at least once a year or even more often if the sauna is in frequent use At the same time any pieces of rocks should be removed from the bottom of the heater anddisintegrated rocks should be replaced with new ones The guarantee does not cover any faults caused by the use of rocks not recommended by the plant Neither does the guarantee cover any faults caused by disintegrated or too small rocks blocking the heater ventilation No such objects or devices should be placed inside the heater rock space or near the heater that could change the amount or direction of the air flowing through the heater thus causing the resistance temperature to rise too high which may set the wall surfaces on fire 1 2 Heating of the Sauna When the heater is switched on for the first time both the heater and the rocks emit smell To remove the smell the sauna room needs to be efficiently ventilated The purpose of the heater is to raise the temperature of the sauna room and the sauna rocks to the required bathing temperature If the heater output is suitable for the sauna room it will take about an hour for a properly insulated
14. g from bottom to prevent burning of bathers HEATER GUARDRAIL Use matching softwood of 1 2 or 2 x 2 Must open out and should not have alock Size 2 O x 6 8 with fir rails and double sealed tempered glass Should be a vapor proof wall mounted type with rough in box mounted flush with inside paneling It should mount 6 150 mm from ceiling not directly over the Sauna heater and not over upper benches light bulb should not exceed 75 watts DOOR ROOM LIGHT Note Receptacles OR PLUGS are not allowed in a Sauna room If a speaker is installed in a Sauna room it should not be installed higher than 3 from floor away from the Sauna heater consult manufacturer for ratings 2 2 Sauna Room Floor Due to a large variation in temperature the sauna rocks disintegrate in use Small pieces of rock are washed down on the sauna room floor along with the water thrown on the rocks Hot pieces of rock may damage plastic floor coverings installed underneath and near the heater A light cocoured joint grout used for a tiled floor may absorb impurities from the rocks and water e g iron content To prevent aesthetic damage due to the reasons presented above only dark joint grouts and floor coverings made of rock materials should be used underneat and near the heater 2 3 Heater Output When the walls and ceiling are covered with panels and the insulation behind the panels is sufficient to prevent thermal flow int
15. iciently insulated in order to keep the heater output at a reasonably low level A wall and ceiling construction can be considered to have efficient thermal insulation if e the thickness of carefully fitted insulating wool inside the house is 4 100 mm minimum 2 50 mm e the moisture protection consists of e g aluminium paper with tightly taped edges The paper must be fitted so that the glossy side is towards the inside of the sauna e there is 3 8 10 mm vent gap between the moisture protection and panel boards recommendation e theinside is covered by 1 2 5 8 12 16 mm thick panelling e there is a vent gap of a few millimetres at the top of the wall covering at the edge of the ceiling panelling When aiming at a reasonable heater output it may be advisable to lower the ceiling of the sauna normally 6 10 11 6 2100 mm minimum height 59 1 16 1500 mm As a result the volume of the sauna is decreased and a smaller heater output may be sufficient The ceiling can be lowered so that the ceiling joists are fixed at a suitable height The spaces between the joists are insulated minimum insulation 4 100 mm and surfaced as described above Because heat goes upwards a maximum distance of 38 970 mm is recommended between the bench and ceiling NOTE Consult fire extinguishing authorities to find out which part of the fireproof wall may be insulated NOTE The protection of the walls or ceiling with
16. ie 9 3 6 Electric heater insulation resistance 9 3 7 Testing of Sauna heater 9 3 0 Tro bleshooting oe oe sr E E SERERE AXE SEE E SeESU RENI 10 3 9 Caution Electrician or service person 10 3 10 Maintenance instructions esses memes 10 3 11 Guarantee ooi eee rete eased 11 4 Spare Parts cem ecc E 12 Xe 2 1 INSTRUCTIONS FOR USE This heater shall not be operated unless the rock compartment the top of the heater is filled with the rocks and the guard is in place 1 1 Piling of the Sauna rocks The sauna rocks for an electric heater should be 1 9 16 3 1 8 4 8 cm in diameter The heater rocks should be solid blocks of rock specially intended for use in the heater Neither light porous ceramic rocks of the same size nor soft potstones should be used in the heater because they may cause the resistance temperature to rise too high as a result of which the resistance may be broken Rocks dust should be washed off before piling the rocks The rocks should be piled into the rock compartment over the grating between the heating elements resistances so that the rocks support each other The weight of the rocks should not lie on the heating elements The rocks should not be piled too tightly so that air can flow through the heater See
17. llation use and care or alterations made to the Sauna product This guarantee is void if the heater is used improperly Pool or spa water should not be poured over the Sauna stones as chemicals are harmful to the heater the Sauna room must be heated for at least 30 minutes before water is poured over the stones only one or two dippers ful of water should be poured over the hot stones at one time This guarantee will be void if a shower has been installed in the Sauna room The guarantee does not cover delivery costs of the faulty part or costs of the person carrying out the repair in the field If the Sauna heater is returned to the manufacturer or manufacturer s agent within five years after date of purchase the agent will provide free labor for repair but will charge for parts if date of purchase is past one year This guarantee will be void if installation and wiring is not carried out by a certified electrician or authorized and qualified service representative who must sign below This guarantee will be void if information below is not filled out and returned within 15 days of purchase and it applies only to original installation of product and to original purchaser SAUNA HEATER MODEL NUMBER DATE OF PURCHASE ORIGINAL OWNER ADDRESS PURCHASED FROM ELECTRICAL CONTRACTOR MUST SIGN HERE DATE OF ELECTRICAL WIRING amp HOOKUP 11 4 SPARE PARTS
18. o the electrical network in accordance with the current regulations by an authorised professional electrician Refer to the chart in table 2 to determine the wire size and circuit protection required The complete sauna system should be properly grounded as per NEC or as required by local codes grounding terminal is provided in the wiring compartment of each heater complate the wiring according to the appropriate wiring figure 10 See table 1 for required clearances Any wiring within internal Sauna walls must be rated for 90 194 F and copper wire must be used Run wire through seal tight flex conduit from wall to heater and connect to junction box Note If connection to heater will be made at alater time bring flex into Sauna room 4 6 100 150 mm from floor and leave 3 900 mm of flex for hookup can be cut to right lenght later Further instructions concerning exceptional in stallations can be obtained from local electrical authorities 3 6 Electric heater insulation resistance When performing the final inspection of the electrical installations a leakage may be detected when measuring the heater s insulation resistance The reason for this is that the insulating material of the heating resistors has absorbed moisture from the air storage transport After operating the heater for a few times the moisture will be removed from the resistors Note A ground fault interrupter GFI shoud not be installed in and
19. o the wall materials the heater outputis defined according to the cubic volume of the sauna See table 1 If the sauna has visible uninsulated wall surfaces such as walls covered with brick glass block concrete or tile each 10 square feet ca 1m of said wall surface causes the cubic volume of the saunato increase by 42 Cu Ft ca 1 2 Theheater output is then selected according to the values given in the table Because log walls are heated slowly the cubic volume of a log sauna should be multiplied by 1 5 and the heater output should then be selected on the basis of this information 2 4 Ventilation of the Sauna Room Sufficient ventilation is extremely important for the sauna The air in the sauna room should be changed six times per hour The fresh air pipe should come directly from outside Inlet ventilation openings shall be located at the bottom of the wall as close to the floor level as possible 3 INSTRUCTIONS FOR THE INSTALLATION 3 1 Prior to Installation e to installing the heater study the instructions for installation as well as checking the following points e Is the output and type of the heater suitable for the sauna room The cubic volumes given in table 1 should be followed e there a sufficient number of high quality sauna rocks e Is the supply voltage suitable for the heater e location of the heater fulfils the minimum requirements concerning safety distances given
20. oe Rx e ERE ge Sexe EVE e EE uv ERU E ERE UR cee s 4 1 3 3 Overheating an eee eee e 4 1 4 Throwing Water Heated 4 1 41 Saura Water ond aude ree soe n 4 1 4 2 Temperature and Humidity of the Sauna Room 5 1 5 Instructions for Bathing sesssssssssssm mene 5 126 DIEI 5 1 7 Warning 5 1 8 Malf nctloris 2 5 etie steer ebbe esed ELE 5 2 THE SAUNA ROOM 6 2 1 Insulation and Wall Materials of the Sauna Room 6 2 1 1 Room construction general information 6 2 2 Sauna Room FO Oto ities ee re be ee 6 2 3 Heater Output s eorr 7 2 4 Ventilation of the Sauna Room cissssssssssssseeeeen emen 7 2 5 Hygienic Conditions of the Sauna Room 7 3 INSTRUCTIONS FOR THE INSTALLATION nnns 7 Prior to Installation 7 3 2 Fastening the Heater on a 8 3 3 Installation capillary tubing and bulb 8 3 4 Safety Ballirigr iiem ich ree De ox ER EEERERTE RES ee ER A ERU Eau UE 8 3 5 Electrical Connections eenia owe ce Ere a D
21. porate and the rest may splash as boiling hot water on the bathers Never throw water on the rocks when there are people near the heater because hot steam may burn their skin 1 4 1 Sauna Water The water to be thrown on the heated rocks should meet the requirements of clean household water The factors essentially affecting the quality of water include the following e content colour taste precipitates e recommended content less than 12 mg litre e iron content colour smell taste precipitates e recommended content less than 0 2 mg litre e hardness the most important substances are manganese Mn and calcium Ca recommended e content of manganese 0 05 mg litre calcium less than 100 mg litre Calcareous water leaves a white sticky layer on the rocks and metal surfaces of the heater Calcification of the rocks deteriorates the heating properties Ferrous water leaves a rusty layer on the surface of the heater and elements and causes corrosion The use of humous chlorinated water and seawater is forbidden Only special perfumes designed for sauna water may be used Follow the instructions given on the package 1 4 2 Temperature and Humidity of the Sauna Room Hr MAG RESET BUTTON Figure 3 Place of the reset button Both thermometers and hygrometers suitable for use in a sauna are available As the effect of steam on people va
22. ries it is impossible to give an exact universally applicable bathing temperature or percentage of moisture The bather s own comfort is the best guide The sauna room should be equipped with proper ventilation to guarantee that the air is rich in oxygen and easy to breathe See item 2 4 Ventilation of the Sauna Room Bathing in a sauna is considered a refreshing experience and good for the health Bathing cleans and warms your body relaxes the muscles soothes and alleviates oppression As a quiet place the sauna offers the opportunity to meditate b Instructions for Bathing e Begin by washing yourself for example by taking a shower e Stay in the sauna for as long as you feel comfortable See item 1 6 Warnings e According to established sauna conventions you must not disturb other bathers by speaking in a loud voice e Do not force other bathers from the sauna by throwing excessive amounts of water on the rocks e Forget all your troubles and relax e Cool your skin down as necessary e If you are in good health you can have a swim if a swimming place or pool is available e Wash yourself properly after bathing Have a drink of fresh water or a soft drink to bring your fluid balance back to normal e Rest for a while and let your pulse go back to normal before dressing 6 Warnings e Sea air and a humid climate may corrode the metal surfaces of the heater Do not hang clothes to dry
23. sauna to reach that temperature See item 2 1 Insulation and wall materials of the Sauna Room A suitable temperature for the sauna roomis about 150 F 175 F 65 C 80 C The sauna rocks normally reach the required bathing temperature at the same time as the sauna room If the heater capacity is too big the air in the sauna will heat very quickly whereas the temperature of the rocks may remain insufficient consequently the water thrown on the rocks will run through On the other hand if the heater Capacity is too low for the sauna room the room will heat slowly and by throwing water on the rocks the bather may try to raise the temperature of the sauna However the water will only cool down the rocks quickly and after a while the sauna will not be warm enough and the heater will not be able to provide enough heat In order to make bathing enjoyable the heater capacity should be carefully chosen to suit the size of the sauna room See item 2 3 Heater Output Figure 1 Piling of the sauna rocks 1 3 Control Unit 1 3 1 Timer The heaters JM 17 and JM 20 are switched on by using the timer switch The indicator lights will come on The timer has two scales the first one with larger figures is the instantly on section that is the heater is on for a selected period of time 0 1 hours The other section is the so called pre set section 1 8 hours which is used to start the heater after a cert
24. st be set to the desired point in the section O 1 Then the heater will be switched immediately on and the sauna will be ready for bathing after about one hour Switch the heater off immediately after bathing and check that the sauna rocks are dry Sometimes it may be advisable to leave the heater on for a while to let the wooden parts of the sauna dry properly NOTE It is absolutely necessary to check that the timer has cut off the supply of the elements after the set time 1 3 2 Thermostat The temperature is adjusted by the thermostat to a position between minimum and maximum See figure 2 The correct position of the thermostat switch is found by experimenting Begin experimenting at the maximum position far right to find how quickly the sauna room and rocks can be heated to the desired temperature If during bathing the temperature seems to be becoming too high turn it down a little by turning the switch counter clockwise must be noted that even a small difference within the maximum section will change the temperature of the sauna considerably 1 3 3 Overheating limiter Each heater i equipped with a overheating limiter which is a safety device If for some reason the temperature of the sauna room becomes too high the overheating limiter will permanently cut off the supply of the resistances The overheating limiter cannot be reset to the position allowing electricity until the heater has cooled down The overheating
25. stances to combustible materials Wipe dust and dirt from the heater with a damp cloth HEATER SAUNA ROOM Ineh mm Min height Floor area Volume Widht 11 13 16 300 ves 2 E Min Max Min Max inch Sq Ft Cu Ft MODEL kW nm m m JM 17 1 7 5916 8 13 39 64 1500 0 7 1 1 1 0 2 597e 9 14 44 69 2 0 eee 1500 0 8 1 5 12 2 23 595 14 28 68 138 aie 2e 1500 1 3 2 6 2 4 Table 1 Installation details of a JM heater See fig 4 and item 2 3 Heater output 3 2 Fastening the Heater on a Wall 1 Fasten the wall mounting rack on the wall byusing the screws which come with the rack Observe the minimum safety distances given in table 1 and fig 5 The fastening of the mounting rack is shown in figure 6 NOTE There should be a support e g a board behind the panel so that the fastening screws can be screwed into a thicker wooden material than the panel If there are no boards behind the panel the boards can also be fastened on the panel See figure 4 2 Liftthe heater onto the rack on the wall so that the connecting box switches are easily accessible 3 The steam distributor rock guard must always be fastened on the wall side of the heater To turn the distributor guard loosen the fastening screw and then turn it See figure 9 3 3 Installation capillary tubing and bulb Before hooking up electrical wires to junction box of heater remove capillary tubing and bulb from junction box and bring up wall to left or right side of
26. th room heights and location Eg 180 F 82 C above Sauna heater 165 F 74 C on opposite wall 140 F 60 C on upper bench level 120 F 49 C on lower bench level 100 F 38 C at floor level 3 Check for proper wire size amp size and proper wiring according to diagrams and information also necessary copper wiring 4 Check for placement of stones to make sure they are loosely spaced around elements to insure good air flow Stones packed too tightly will restrict air flow and reduce heating capacity 5 Check for heat loss around or under door around ceiling light or fan we do not recommend ceiling light and a fan does not belong in the Sauna Is room properly insulated Is ceiling higher than in figure 4 After checking all of the above remove rocks and check heater elements for holes or burned areas Only if heater has been in use for some time DND 3 9 Caution Electrician or service person 1 Before servicing heater control or contactor turn power off at breaker 2 Open junction box to make sure wires are tightly secured with no loose connections Heater wire and all connecting wires should be copper 3 Check for burned spots or short in wiring of timer or thermostat 10 3 10 Maintenance instructions 10 11 12 Use only clean water on Sauna stones Do not use spa or pool water as it will destroy your heater Clean water should always be used in Sauna buckets and w
27. ure 10 Electrical connections of the heaters JM 17 JM 20 and JM 30 Heater Input Voltage Phase Amperage Min 90 C Copper supply Model kW wire A W G No 17 1 7 120 1 14 2 12 20 2 0 120 1 16 7 12 30 3 0 240 1 12 5 14 Table 2 Supply wires 3 8 Troubleshooting A If sauna does not operate after initial installation and wiring 1 Check breaker to be sure that it is on Also breaker should be correct size 2 Make sure that a neutral wire has been included 3 Checkcircuit breaker in contactor to be sure that it has not been shorted out 4 that thermostat and timer are both in on position 5 Besure that timer winds down If timer has been shorted out heater will not operate B If sauna has been in operation but heater ceases to operate 1 Check breaker to make sure it is on 2 Check timer to see if it winds down 3 Check high limit reset button in heater reset is under the heater to see if it has been released 4 Call your electrician or service person for further help Sauna heater operates but room does not come up to Sauna temperature 160 185 F 70 85 normal Sauna temperature 1 Youmustallow at least 30 minutes for Sauna heat up time 2 1 Sauna thermometer located 6 150 mm from ceiling and is it above or close to Sauna heater This is proper location for Sauna temperature reading Thermometer readings vary wi
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