HARVIA HL135 Electric Sauna Heater Instruction Manual
- May 15, 2024
- HARVIA
Table of Contents
HARVIA HL135 Electric Sauna Heater
Product Information
Specifications
- Models : HL135, HL160, HL22
- Part Number : 01082023/ZCU-752
- Intended Use : Heating sauna room to bathing temperature product Usage Instructions
Sauna Room Structure
Ensure the sauna room is properly constructed to withstand the heat generated by the heater.
Sauna Room Ventilation
Proper ventilation is essential for a comfortable sauna experience. Ensure adequate airflow in the sauna room.
Heater Output
Refer to the specific model’s manual for information on the heater’s power output and adjust as needed for the desired temperature.
Sauna Room Hygiene
Maintain cleanliness in the sauna room by regularly cleaning surfaces and removing any debris.
FAQ
- Q: Can the heater be used for purposes other than heating a sauna room?
- A : No, the heater is specifically designed for heating a sauna room to a bathing temperature and should not be used for any other purpose.
- Q: Who should receive the installation and usage instructions?
- A : The owner or person in charge of the sauna, as well as the electrician responsible for the electrical installation of the heater, should receive and follow these instructions.
Instructions for Installation and Use of Electric Sauna Heater
These instructions for installation and use are intended for the owner or the person in 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. Please read the instructions for use carefully before using the heater.
The heater is designed for the heating of a sauna room to bathing temperature. It is not to be used for any other purpose.
The heater is designed for the heating of a sauna room to bathing temperature. It is not to be used for any other purpose.
Congratulations on your choice!
Guarantee:
- The guarantee period for heaters and control equipment used in saunas by families is two (2) years.
- The guarantee period for heaters and control equipment used in saunas by building residents is one (1) year.
- The guarantee period for heaters and control equipment used in saunas by institutions is three (3) months.
- The guarantee does not cover any faults resulting from failure to comply with installation, use or maintenance instructions.
- The guarantee does not cover any faults resulting from the use of stones not recommended by the heater manufacturer.
INSTRUCTIONS FOR USE
Piling of the Sauna Stones Sauna heater stones are significant in terms of the unit’s safety. In order for the warranty to remain valid, the user is responsible for proper maintenance of the stone space in accordance with the specifications and instructions.
Important information on suitable sauna stones:
- Suitable sauna stone materials are peridotite, olivine diabase, olivine, and vulcanite.
- Only use a cleavage surface and/or rounded stones for your sauna heater.
- If the heating elements of an electric sauna heater are in contact with the stones, rounded stones may only be used in the outer layers of the stone space, so that they do not come into contact with the heating elements.
- Ceramic stones and decorative stones may only be used if they have been approved by the manufacturer and are used according to the their instructions.
- Note that decorative stones are only suitable on the top layer of the stone space. Decorative stones must be placed loosely to ensure sufficient air circulation. Place any decorative stones so that they do not touch the heating elements of an electric sauna heater. If you have a wood-burning stove, make sure the stones do not touch the stove’s hot inner frame.
- The warranty does not cover any defects that have been caused by the use of decorative stones or by sauna stones not recommended by the manufacturer.
- The stones should be 10–15 cm in diameter.
- Wash off the dust from the stones before piling them into the heater.
Please note when placing the stones:
- Do not drop stones into the heater.
- Place the stones sparsely to ensure that air can circulate between them.
- Do not form a high pile of stones on top of the heater.
- No such objects or devices should be placed inside the heater stone space or near the heater that could change the amount or direction of the air flowing through the heater.
Maintenance
Due to large variations in temperature, the sauna stones disintegrate in use. Rearrange the stones at least once a year or even more often if the sauna is in frequent use. At the same time, remove any pieces of stones from the bottom of the heater and replace any disintegrated stones with new ones. By doing this, the heating capability of the heater stays optimal and the risk of overheating is avoided.
Heating of the Sauna
When operating the heater for the first time, both the heater and the stones emit a smell. To remove the smell, the sauna room needs to be efficiently ventilated. If the heater output is suitable for the sauna room, it will take about an hour for a properly insulated sauna to reach the required bathing temperature (2.3.). The sauna stones normally reach the bathing temperature at the same time as the sauna room. A suitable temperature for the sauna room is about 65–80 °C.
Before switching the heater on always check that there isn’t anything on top of the heater or inside the given safety distance. 1.4.
Using the Heater
The heater is controlled from a separate control unit. See the instructions for use of the selected control unit model.
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 stones to reach a suitable level of humidity in the sauna. The effect of heat and steam on people varies – by experimenting, you can find the levels of temperature and humidity that suit you best.
The maximum volume of the ladle is 0.2 liters. If an excessive amount of water is poured on the stones, only part of it will evaporate and the rest may splash as boiling hot water on the bathers. Never throw water on the stones when there are people near the heater, because hot steam may burn their skin. The water to be thrown on the heated stones should meet the requirements of clean household water (table 1). Only special aromas designed for sauna water may be used. Follow the instructions given on the package.
Instructions for Bathing
- Begin by washing yourself.
- Stay in the sauna for as long as you feel comfortable.
- Forget all your troubles and relax.
- According to established sauna conventions, you must not disturb other bathers by speaking in a loud voice.
- Do not force other bathers from the sauna bythrowing excessive amounts of water on the stones.
- Cool your skin down as necessary. If you are in good health, you can have a swim if a swimming place or pool is available.
- Wash yourself after bathing.
- Rest for a while and let your pulse go back to normal. Have a drink of fresh water or a soft drink to bring your fluid balance back to normal.
Warnings
- Staying in the hot sauna for long periods makes the body temperature rise, which may be dangerous.
- Keep away from the heater when it is hot. The stones and outer surface of the heater may burn your skin.
- Keep children away from the heater.
- Do not let young, handicapped or ill people bathe in the sauna on their own.
- Consult your doctor about any health-related limitations to bathing.
- Consult your child welfare clinic about taking little babies to the sauna.
- Be very careful when moving in the sauna, as the platform and floors may be slippery.
- Never go to a hot sauna if you have taken alcohol, strong medicines, or narcotics.
- Never sleep in a hot sauna.
- Sea air and a humid climate may corrode the metal surfaces of the heater.
- Do not hang clothes to dry in the sauna, as this may cause a risk of fire. Excessive moisture content may also cause damage to the electrical equipment.
Symbols descriptions
Read the operator’s manual.
Do not cover.
Troubleshooting
All service operations must be done by professional maintenance personnel.
The heater does not heat.
- Check that the fuses to the heater are in good condition.
- Check that the connection cable is connected.
- Check that the control panel shows a higher figure than the temperature of the sauna.
- Check that the overheat protector has not gone off. The sauna room heats slowly. The water thrown on the sauna stones cools down the stones quickly.
- Check that the fuses to the heater are in good condition.
- Check that all heating elements glow when the heater is on.
- Turn the temperature to a higher setting.
- Check that the heater output is sufficient ( 2.3.).
- Check that the sauna room ventilation has been arranged correctly ( 2.2.).
The sauna room heats quickly, but the temperature of the stones remains insufficient. Water thrown on the stones runs through.
- Turn the temperature to a lower setting.
- Check that the heater output is not too high ( 2.3.).
- Check that the sauna room ventilation has been arranged correctly ( 2.2.). Panel or other material near the heater blackens quickly.
- Check that the requirements for safety distances are fulfilled ( 3.1.).
- Check that no heating elements can be seen behind the stones. If heating elements can be seen, rearrange the stones so that the heating elements are covered completely ( 1.1.).
- Also see section 2.1.1. The heater emits a smell.
- See section 1.2.
- The hot heater may emphasize odors mixed in the air that are not, however, caused by the sauna or the heater. Examples: paint, glue, oil, seasoning.
- The heater makes a noise.
- Occasional bangs are most likely caused by stones cracking due to heat.
- The thermal expansion of heater parts can cause noises when the heater warms up.
SAUNA ROOM
Sauna Room Structure
A. Insulation wool, thickness 50– 100 mm. The sauna room must be
insulated carefully so that the heater output can be kept moderately low.
B. Moisture protection, e.g. aluminum paper. Place the glossy side of the
paper towards the sauna. Tape the seams with aluminum tape.
C. Vent gap of about 10 mm between the moisture protection and panel
(recommendation).
D. Low mass 12– 16 mm thick panel board. Before starting the paneling,
check the electric wiring and the reinforcements in the walls required by the
heater and benches.
E. Vent gap of about 3 mm between the wall and ceiling panel.
F. The height of the sauna is usually 2100– 2300 mm. The minimum height
depends on the heater (see Table 2). The space between the upper bench and
ceiling should not exceed 1200 mm.
G. Use floor coverings made of ceramic materials and dark joint grouts.
Particles disintegrating from the sauna stones and impurities in the sauna
water may stain and/or damage sensitive floor coverings.
NOTE! Check with the fire authorities which parts of the firewall can be insulated. Flues that are in use must not be insulated.
NOTE! Light protective covers which are installed directly to the wall or ceiling may be a fire risk.
NOTE! Make sure that the water dripping onto the sauna floor enters the floor drain.
Blackening of the Sauna Walls
It is perfectly normal for the wooden surfaces of the sauna room to blacken in time. The blackening may be accelerated by
- sunlight
- heat from the heater
- protective agents on the walls (protective agents have a poor heat resistance level)
- fine particles disintegrating from the sauna stones which rise with the airflow.
Sauna Room Ventilation
The air in the sauna room should change six times per hour. Figure 3 illustrates different sauna room ventilation options.
A. Supply air vent location. If mechanical exhaust ventilation is used,
place the supply air vent above the heater. If gravity exhaust ventilation is
used, place the supply air vent below or next to the heater. The diameter of
the supply air pipe must be 50–100 mm. Do not place the supply air vent so
that the air flow cools the temperature sensor (see the temperature sensor
installation instructions in the control unit installation instructions)!
B. Exhaust air vent. Place the exhaust air vent near the floor, as far
away from the heater as possible. The diameter of the exhaust air pipe should
be twice the diameter of the supply air pipe.
C. Optional vent for drying (closed during heating and bathing). The
sauna can also be dried by leaving the door open after bathing.
D. If the exhaust air vent is in the washroom, the gap underneath the
sauna door must be at least 100 mm. Mechanical exhaust ventilation is
mandatory.
Heater Output
When the walls and ceiling are covered with panels and the insulation behind the panels is adequate, the heat output is defined according to the volume of the sauna. Non-insulated walls (brick, glass block, glass, concrete, tile, etc.) increase the need for heater output. Add 1,2 m³ to the volume of the sauna for each non-insulated wall square meter. For example, a 10 m³ sauna room with a glass door equals the output requirement of about a 12 m³sauna room. If the sauna room has log walls, multiply the sauna’s volume by 1,5. Choose the correct heater output from Table 2.
Sauna Room Hygiene
Bench towels should be used during bathing to prevent sweat from getting onto the benches. The benches, walls, and floor of the sauna should be washed thoroughly at least every six months. Use a scrubbing brush and sauna detergent. Wipe dust and dirt from the heater with a damp cloth. Remove lime stains from the heater using a 10% citric acid solution and rinse.
INSTRUCTIONS FOR INSTALLATION
Before Installation
Before installing the heater, study the instructions for installation. Check the following points:
- Is the output and type of the heater suitable for the sauna room? The cubic volumes given in Table 2 should be followed.
- Is the supply voltage suitable for the heater?
- The location of the heater fulfills the minimum requirements concerning safety distances given in Fig. 4 and Table 2.
- Note! Only one electrical heater may be installed in the sauna room. The heater should be installed so that the warning texts can also be read without difficulty after the installation.
Place and Safety Distances
The minimum safety distances are described in Figure 4. It is absolutely necessary to install the heater according to these values. Neglecting them causes a risk of fire.
Safety Railing
If a safety railing is built around the heater, the minimum distances given in fig. 4 or in the railing’s instructions for installation must be observed.
Installation of the Control Unit and Sensor
- The control unit includes detailed instructions for fastening the unit on the wall.
Opening the cover of the service hatch
Connections of the heater
- Connection box
- Connection cable
- Junction box HL135/HL160/HL220 I group
- Junction box HL220 II group
Replacing the Heating Elements
Figure 5.
Install the temperature sensor as shown in figure 6. If the heater is installed further than 150 mm from the wall, the sensor must be installed on the ceiling. Do not place the supply air vent so that the air flow cools the temperature sensor. Figure 3.
Suitable control units
HL135/HL160:
- Harvia Griffin CG170
- Harvia C90+ LTY17
- Harvia C150VKK
- Harvia C260
- Harvia Xenio CX170
HL220:
- Harvia Griffin CG170+LTY17
- Harvia C260
- Harvia Xenio CX170+LTY17
3.5. Electrical Connections
The heater may only be connected to the electrical network in accordance with the current regulations by an authorized, professional electrician.
- The heater is semi-stationarily connected to the junction box (figure 5:3) on the sauna wall. The junction box must be splash-proof, and its maximum height from the floor must not exceed 500 mm.
- The connecting cable (figure 5:2) must be of rubber cable type H07RN-F or its equivalent.
- NOTE! Due to thermal embrittlement, the use of PVC-insulated wire as the connecting cable of the heater is forbidden.
- If the connecting and installation cables are higher than 1000 mm from the floor in the sauna or inside the sauna room walls, they must be able to endure a minimum temperature of 170 when loaded (for example, SSJ). Electrical equipment installed higher than 1000 mm from the sauna floor must be approved for use in a temperature of 125 °C (marking T125).
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 elements
has absorbed moisture from the
air (storage, transport). After operating the heater for a few times, the
moisture will be removed from the heating elements.
Do not connect the power feed for the heater through the RCD (residual current device)!
Installing the Heater See figure 5.
1. Connect cables to the heater ( 3.5.).
2. Place the heater and adjust the heater vertically straight using the
adjustable legs. The heater is fixed to the floor at its two legs, at the
legs’ fixing points.
Replacing the Heating Elements See Figure 5.
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