HARVIA HPCS6U1HB Cilindro Half Series 6kW Sauna Heater Owner’s Manual

HARVIA HPCS6U1HB Cilindro Half Series 6kW Sauna Heater

Product Information
The HPC electric heater is manufactured by Sauna Specialist
Inc. The model options available are:

• HPCS6U1HB – 6.0 kW
• HPCS7U1HB – 6.8 kW
• HPCS8U1HB – 8.0 kW
• HPCS9U1HB – 9.0 kW

The manufacturer’s contact information is as follows:
Sauna Specialiste Inc. Dessere Nord Autoroute 440
Laval, Quebec, H7L 3W3
Toll-free: 1 855-689-2422
Harvia US Inc. 3567 Jefferson St. N, Lewisburg, WV 24901+1 304-497-3991

Warnings
It is important to read the instructions for use carefully before using the heater. The hot surface should be handled with caution to avoid burns. The HPC electric heater is designed for use in a well-heat-insulated family sauna and should not be used for any other purposes.

Guarantee
The guarantee period for the HPC electric heater is one year for family use and three months for communal use. Please refer to the user’s instructions for more details.

Maintenance Instructions
Regular maintenance is required for optimal performance of the sauna heater. The sauna stones should be rearranged at least once a year, or more frequently if the sauna is used frequently. Any disintegrated stones should be replaced with new ones to maintain optimal heating capability and prevent overheating. It is important to monitor the settling of the stones and ensure that the heating elements do not become visible over time. When operating the heater for the first time, proper ventilation of the sauna room is necessary to remove any initial smell emitted by the heater and stones. Before switching on the heater, always check that there are no objects on top of the heater or within the designated safety distance.

Sauna heater installation, wiring, operating instructions, troubleshooting, maintenance, and guarantee.
IMPORTANT! This manual must be left with the owner, manager, or operator of the Sauna after it is used by the electrician!

The overheat protector of the device can go off also at temperatures below -5˚C / 23˚F (storage, transport, environment). Before installation takes the device to a warm environment. The overheat protector can be reset when the temperature of the device is approx 18˚C / 64˚F. The overheat protector must be reset before using the device. See the user manual > Resetting the Overheat Protector. The overheat protector of the device can go off also at temperatures below -5˚C / 23˚F (storage, transport, environment). Before installation take the device to the warm environment. The overheat protector can be reset when the temperature of the device is approx 18˚C / 64˚F. The overheat protector must be reset before using
the device. See the user manual > Resetting the Overheat Protector.

INSTRUCTIONS FOR USE

Piling of the Sauna Stones
The piling of the sauna stones has a great effect on both the safety and the heating capability of the heater.
Important information on sauna stones:

• The stones should be 2-4’’ (5–10 cm) in diameter.
• Use solely angular split-face sauna stones that are intended for use in a heater. Peridotite, olivine-dolerite and olivine are suitable stone types.
• Neither light, porous ceramic “stones“ nor soft soapstones should be used in the heater. They do not absorb enough heat when warmed up. This can result in damage to heating elements.
• Wash off dust from the stones before piling them into the heater. Please note when placing the stones:
• The aim is to pile a dense layer of stones against the steel grid and pile the rest of the stones loosely. The dense layer prevents direct heat radiation from overheating materials around the heater. Be especially careful with the corners where the heating elements are near the grid. The loose piling of stones in the middle lets the airflow through the heater, resulting in good heating of the sauna and sauna stones.
• Do not drop stones into the heater.
• Do not wedge stones between the heating elements.
• Pile the stones so that they support each other instead of lying their weight on the heating elements.
• Support the heating elements with stones so that the elements stay vertically straight.
• 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 a heater that could change the amount or the direction of the air flowing through the heater. A bare heating element can endanger combustible materials even outside the safety distances. Check that no heating elements can be seen behind the stones.

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. Pay attention, especially to the gradual settling of the stones. Be sure that the heating
elements do not appear with time. The stones settle most rapidly within the first two months of piling.

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 a half 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 149–167 °F (65–75 °C). Before switching the heater on always check that there isn’t anything on top of the heater or inside the given safety distance.

Using the Heater
Heater models are equipped with a timer and a thermostat. The timer is for setting the on-time for the heater (60 minutes) and the thermostat is for setting a suitable temperature. 1.3.1.–1.3.4.

Heater On
Turn the timer switch (section A in figure 3) past the first 1 to number 2 or 3 on the dial. Then turn backward to the first 1 until you hear a click. The heater starts heating immediately. Allow at least 30 minutes for the sauna room to heat up to an average Sauna temperature.

Pre-setting Time (timed switch-on)

Turn the timer switch to the ”pre-setting” section (section B in figure 3, 0–8 hours). The heater starts heating when the timer has turned the switch back to the ”on” section (section A in figure 3). After this, the heater will be on for an hour.
Example: You want to go walking for two and half hours and have a sauna bath after that. Turn the timer switch to the “pre-setting” section at number The timer starts. After two hours, the heater starts heating. Because it takes about half an hour for the sauna room to be heated, it will be ready for bathing after about two and half hours, that is, when you come back from your walk.

Hardness: most important substances are magnesium (Mg) and lime, i.e. calcium (Ca)| Precipitates| Mg: <100 mg/l

Ca: <100 mg/l

Chloride-containing water| Corrosion| Cl: <100 mg/l
Chlorinated water| Health risk| Forbidden to use
Seawater| Rapid corrosion| Forbidden to use
Arsenic and radon concentration| Health risk| Forbidden to use

Heater Off
The heater switches off, when the timer turns the switch back to zero. You can switch the heater off at any time by turning the timer switch to zero yourself. Switch the heater off after bathing. Sometimes it may be advisable to leave the heater on for a while to let the wooden parts of the sauna dry properly. Always check that the heater has switched off and stopped heating after the timer has turned the switch to zero.

Setting the Temperature
The purpose of the thermostat (figure 3) is to keep the temperature in the sauna room on a desired level. By experimenting, you can find the setting that suits you best. Begin experimenting at the maximum position. If, during bathing, the temperature rises too high, turn the switch counter-clockwise a little. Note that even a small difference within the maximum section will change the temperature of the sauna considerably.

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. You can adjust the nature of the heat from soft to sharp by throwing water either to the front of the heater or straight on top of the stones The maximum volume of the ladle is 0,05 gal (0.2 litres). 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 by throwing 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.

Troubleshooting

All service operations must be done by professional licensed maintenance personnel. The heater does not heat.

• Check that the breakers 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 protectors have not gone off. See figure 8.

• Check that the breaker is switched on. Also, breaker should be correct size. The sauna room heats slowly. The water thrown on the sauna stones cools down the stones quickly.

• Check that the breakers 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 ( 2.4.).

• The sauna room heats quickly, but the temperature of the stones remain insufficient.
  Water thrown on the stones runs through.

• Check that the heater output is not too high ( 2.3.).

• Check that the sauna room ventilation has been arranged correctly ( 2.4.).

• Panel or other material near the heater darkens quickly.

• Check that the requirements for safety distances are fulfilled ( 3.2.).

• Check the sauna stones ( 1.1.). Too tightly piled stones, the settling of stones with time or wrong stone type can hinder the air flow through the heater, which may result in overheating of surrounding materials.

• 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 2.1.2.

• The heater emits smell.

• See section 1.2.

• The hot heater may emphasize odours mixed in the air that are not, however, caused by the sauna or the heater. Examples: paint, glue, oil, seasoning.

• The heater makes 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.

THE SAUNA ROOM

Insulation and Wall Materials of the Sauna Room In an electrically heated sauna, all the massive wall surfaces that store plenty of heat (such as bricks, glass blocks, plaster etc.), must be sufficiently 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:

• the thickness of carefully fitted insulating wool inside the structure is 4” (100 mm) minimum 2” (50 mm).
• the moisture protection consists of e.g. aluminum paper with tightly taped edges. The paper must be fitted so that the glossy side is towards the inside of the sauna.
• there is a 1/4” (10 mm) vent gap between the moisture protection and panel boards (recommendation).
• the inside is covered by 1/2” – 5/8” (12–16 mm) thick paneling.
• there is a vent gap of a few millimeters at the top of the wall covering at the edge of the ceiling paneling.
• When aiming at a reasonable heater output, it may be advisable to lower the ceiling of the sauna, (minimum height 75” (1900 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 47” (1200 mm) is recommended between the bench and ceiling.
• NOTE! The protection of the walls or ceiling with 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.

Room construction – general information
FRAMING
2” x 4” (50 x 100 mm) any suitable wood material,
16” (406 mm) o.c.

CEILING HEIGHT
No higher than 7’ 6” (2300 mm).

INSULATION
R11 Fiberglas with foil back in walls and ceiling, foil facing into the room.

DRYWALL
See local codes. Is not required in most residences. See local codes for commercials. If drywall is used apply 1” x 2” (25 x 50 mm) nailers so that wall and ceiling boards can be attached to solid wood.

kW

| __

inch mm

| __

lb/kg

| __

max. lb/kg

| 2.3.!| | __

min. inch/mm

min. CuFt/m³| max. CuFt/m³| min sqft| max sqft
HPCS6U1HB| 6,0| 14/13/40| 37,5| 17| 200| 90| 141| 4| 294| 8| 23| 47| 75| 1900
360/340/1010
HPCS7U1HB| 6,8| 14/13/40| 37,5| 17| 200| 90| 141| 4| 354| 10| 23| 57| 75| 1900
360/340/1010
HPCS8U1HB| 8,0| 14/13/40| 37,5| 17| 200| 90| 141| 4| 431| 12| 23| 69| 75| 1900
360/340/1010
HPCS9U1HB| 9,0| 14/13/40| 37,5| 17| 200| 90| 141| 4| 494| 14| 23| 79| 75| 1900
360/340/1010

PANELING
Use kiln-dried softwood (with moisture content not exceeding 11 %).

BENCHES
Use matching softwood. Fasten from the bottom to prevent the burning of bathers.

DOOR
Must open out and should not have a lock. Types of door fastenings that may be used are magnetic catches, friction catches, spring-loaded or gravity-loaded door closers, and the like.

ROOM LIGHT
Should be a vapor-proof, wall-mounted type, with a rough-in box mounted flush with inside paneling. It should be mounted 6’’ (150 mm) from the ceiling, not directly over the sauna heater, and not over upper benches. It could be installed under benches. Light bulbs should not exceed recommended watts of the light manufacturer.
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’ (914 mm) from floor, away from the Sauna heater (consult the manufacturer for ratings).

Heater model| Input kW| Voltage| Ph| Amperage| Min. 90 °C Copper supply wire AWG No.
---|---|---|---|---|---
| 1-Group connection| 2-Group connection| 1-Group connection| 2-Group connection
HPCS6U1HB| 6,0| 240| 1| 25| 16,7| 12| 14
HPCS7U1HB| 6,8| 240| 1| 28,25| 18,9| 10| 12
HPCS8U1HB| 8,0| 240| 1| 33,4| 22,3| 8| 12
HPCS9U1HB| 9,0| 240| 1| 37,5| 25| 8| 10

Darkening of the Sauna Walls
It is perfectly normal for the wooden surfaces of the sauna room to darken in time. The darkening may be accelerated by

•  sunlight
• heat from the heater
• protective agents on the walls (protective agents have a poor heat resistance level)

Sauna Room Floor
Due to a large variation in temperature, the sauna stones disintegrate in use. Small pieces of stone are washed down on the sauna room floor along with the water thrown on the rocks. To prevent aesthetic damage only dark joint
grouts and floor coverings made of rock materials should be used underneath and near the heater.

Heater Output
When the walls and ceiling are covered with panels, and the insulation behind the panels is sufficient to prevent thermal flow into the wall materials, the heater output is defined according to the cubic volume of the sauna. See table 2. 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.

Sauna Room Ventilation
Should be provided by lower vent close to heater, 4” (100 mm) from floor, and upper vent on opposite wall (if possible) 6” (150 mm) from ceiling or as low as 24” (600 mm) from floor. Vents should be adjustable and should allow air to change 5 times per hour. Sauna shall be provided with intended ventilation as required per the local code authorities. See figure 4.

Hygienic Conditions of the Sauna Room
Good hygienic standards of the sauna room will make bathing a pleasant experience. The use of sauna seat towels is recommended to prevent sweat from flowing onto the platforms. The towels should be washed after each use. Separate
towels should be provided for guests. It is advisable to vacuum or sweep the floor of the sauna room in connection with cleaning. In ad- dition, the floor may be wiped with a damp cloth. The sauna room should be thoroughly washed at least every six months. Brush the walls, platforms and floor by using a scrubbing brush and sauna cleanser. Then rinse the sauna room by using clean household water. Remove lime stains from the heater using a 10% citric acid solution and rinse. Wipe dust and dirt from the heater with a damp cloth.

INSTRUCTIONS FOR INSTALLATION

Prior to Installation
Prior to installing the heater, read all the instructions for installation (figure 7), as well as checking the following points: The heater volume should be suitable for the sauna room volume. Table 2 shows the minimum and maximum volumes for each heater output. A precondition for the given values is that the sauna room is well heat insulated. The walls and ceiling are covered with wood panel.

• Check that supply voltage and amperages are available for the heater.
• The breakers and the connection cables conform with valid regulations and their dimensions are in accordance with table 3.
• The location is suitable for the heater ( 3.2.).
• 3.7. Resetting the Overheat Protector
• Note! Only one electrical heater may be installed in the sauna room.

Place and Safety Distances
The minimum safety distances are described in figure 4 and 5.

• It is absolutely necessary to install the heater according to these values. Neglecting them causes a risk of fire. ( 3.6.)
• Hot pieces of stone can damage floor coverings and cause a risk of fire. The floor coverings of the installation place should be heat-resistant.

Heater fence
It is necessary for safety and should be constructed of softwood to match sauna interior. See figures 4 and 5 for clearances from sauna heater. Fence should be attached to wall and should not be placed higher than top of heater below rock line.

Electrical Connections
The heater may only be connected to the electrical network in accordance with the current regulations by an authorized, licensed professional electrician. The heater must be connected with a fixed all poles disconnection device, that provides full disconnection under overvoltage category III conditions. The connection must be made according to current local and general regulations. The wiring diagrams are included in the control unit’s installation instructions. Further instructions concerning exceptional installations can be obtained from local electrical authorities.

1. Remove heater from carton and place in proper location in sauna room. Observe proper clearances as per figures 4 and 5. After final hookup, electrical contractor should secure heater to floor with at least two screws or bolts.
2. See the applicable wiring diagram for heater model (figure 6). The heater must be permanently installed by using seal tight conduit between the heater and the wall of the sauna room (pigtails or plugs are not allowed in the sauna room). Wiring must be done by a licensed electrician, who must follow the wiring diagram provided and adhere to local codes. Use proper AWG rated wire size and use copper wire suitable for 194 °F (90 °C) within sauna walls. Use grounding terminals provided in sauna heater to properly ground the equipment as per NEC and local codes.

Inside the heater box there are two signs. Please place the metal ”CAUTION” sign on the interior wall of the sauna room directly above the heater in a visible place (screws and nails included). Place the metal ”WARNING” sign outside, on the door of the sauna room. ”MAINTENANCE INSTRUCTIONS” are at the end of this manual.

Installing the Heater See Figure 7.

1. Install the wall-mounting device.
2. Connect cables to the heater.
3. Place the heater and adjust the heater vertically straight using the adjustable legs.
4. Use fixing kits (2 pcs) to fix the heater to the sauna’s structures.

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, and transport). After operating the heater for a few times, the moisture will be removed from the resistors. Do not connect the power feed for the heater through the RCD (residual current device)/GFI (Ground Fault Interrupter)!

Resetting the Overheat Protector

If the temperature of the sauna room becomes dangerously high, the overheat protector will permanently cut off the supply of the heater. The overheating protector can be reset after the heater has cooled down. See Figure 8. Please check that
the stones are piled properly. ! The overheat protector of the device can go off also at temperatures below -5˚C / 23˚F (storage, transport, environment). Before installation take the device to the warm environment. The overheat protector can be reset when the temperature of the device is approx 18˚C / 64˚F. The overheat protector must be reset before using the device. See the user manual > Resetting the Overheat Protector

SPARE PARTS

Use only parts approved by the manufacturer!

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