HUUM HIVE Manual

PACKAGE CONTENTS

The HUUM HIVE electric sauna heater delivery set contains:

• electric heater;
• adjustable legs (x4);
• installation and operation manual for the electric heater.

ATTENTION! HUUM HIVE electric heater requires a control panel and stones. The product installation should be complete.
This installation and operation manual is intended for use by the sauna owner or maintenance person as well as the electrician responsible for the installation of the heater. Before using the heater, please read the instructions carefully.
ATTENTION! The electrical work described in this manual may only be performed by a licensed electrician.

THINGS TO CHECK BEFORE INSTALLATION

• Does the output (kW) match the volume (ft³/m³) of the sauna room? See Table 1-2.
• In case there are any uninsulated brick, tile, or glass walls in the sauna room, an additional 4,8 ft³ must be added to the sauna room volume for each 1 ft² of such wall; or 1,5 m³ for each 1 m².
• The suitable output of the heater will be determined based on that volume according to Table 1-2.
• The producer's warranty guarantee is invalid if the heater and sauna room have been dimensioned incorrectly!
• Minimal safe distances between the sauna room's ceiling and walls to consider in installing the electric heater are listed in Table 3.

INSTALLATION

Positioning the heater

• The heater must be positioned in such a way that there is a safe distance between flammable materials and the heater.
• The heater must be installed in a way that prevents people from having physical contact with the heater or that dangerous situations could emerge during the heating process.
• The heater holds approximately 528 lb (240 kg) of stones.
• The inputs of the power cable are on the bottom cover of the heater.

Screw down the legs (4 pcs) included in the package. Adjust the legs of the heater so that all four are equally supported and the heater is level.

Connecting the heater to the power supply

• A method to disconnect all poles from the mains (a circuit breaker) must be installed on the power circuit before the sauna controller.
• Only a certified electrician is allowed to connect the heater to the power supply.
• The power cable of the heater must meet the requirements (against sunlight, water and oil) of UL 62 in US and CSA 49 in Canada.
• It is recommended to connect the unit to the mains without a GFCI breaker.
• The maximum current intensity in the cross-sectional area of the cable and circuit breaker are listed in Table 2.
• The cable must be secured to the clamp on the cover screw.

ATTENTION! You shall not use a non-heat-resistant cable with PVC isolation as the power cable. The junction box must be waterproof and it must be located up to 20 in (50 cm) from the floor.

• Open the cover of the heater's electrical box.
• Attach the power cable on the terminal block according to the circuit diagram.
• Close the cover.
• Fix the cable on the output with a cable strap.

Fitting the stones

• Make sure that the heating elements are not bent during the process.
• There must be sufficient air circulation around the heater elements.
• Stack the stones sparsely between the heating elements. If the stones have been stacked too close to each other, the heating elements may overheat (= shorter useful life) and slow the heating of the sauna.
• Stones with a diameter of 1.97-3.94 in (5–10 cm) are suitable for the heater.
• The stones on the external surface of the heater must be stacked close to one another. The heating elements must not be visible.
• Using ceramic stones in the HIVE heater is allowed at the user's responsibility.

ATTENTION! If the stone container is filled too sparsely, it poses a fire hazard!
ATTENTION! We recommend a specialist to lay the stones on the heater.
Before switching the heater on, the insulation resistance might prove to be lower than the standard. The reason for that is the moisture that seeped into the insulating layer during storage in the warehouse and transportation.
The moisture evaporates after the electric heater has been heated for 1–2 hours.

CONTROLLING THE HEATER

All certified control panels with thermal control may be used in controlling the heater. The output of the heater must remain in the interval determined by the control panel's producer.
Product can be used only with controlunit with timer function. Including other than those for installation in public saunas, shall be provided with a timer. For appliances for use in blocks of flats, hotels and similar locations, the operating period of the sauna heater shall be limited to 12 h with a minimum rest period of 6 h before any automatic restarting. For other appliances, the operating period of the timer shall be limited to 6 h, automatic restarting not being allowed.

GUARD RAILS

• It is recommended to construct a guard rail around the heater. We recommend using materials with low heat capacity and bad thermal conductivity for the guard rail.
• Upon using flammable materials, it is necessary to leave the specified minimal safety clearances between the heater and flammable constructions.

ATTENTION! If the heater is installed closer to flammable constructions than at the distance of the minimal required protection belt it may cause a fire hazard!

SAUNA ROOM

Wall materials and insulating the sauna room
In a sauna with electric heating, all massive heat accumulating wall surfaces (brick, glass brick, rendering etc.) must be insulated to use the electric heater with a regular output.

The sauna wall and ceiling construction is considered to be sufficiently insulated:

• a carefully installed insulation wool layer of 4 in, minimum 2 in (100 mm, min. 50 mm);
• the construction is damp proofed with taped aluminium paper or other reflective material;
• there is a 0.4 in (10 mm) air gap between the damp protection and boarding
• light wooden boards with about a 0.5-0.65 in (12–16 mm) thickness have been used for interior finishing;
• there is an air gap of at least 0.2 in (5 mm) on the edge of the ceiling panels at the upper part of the wall panelling.

In order to use the heater with a regular output, it would be practical to bring the ceiling of the sauna lower regular 83 - 91 in, min. height of sauna room 78.7 in (2100–2300 mm, min. height of sauna room 2000 mm) so that the volume of the sauna room diminishes. The ceiling is insulated with an insulation layer at least 4 in (100 mm) thick and boarded according to the method described above. Wood should be used to cover internal surfaces; an exception may be made for heat resistant walls in the vicinity of the heater.
ATTENTION! Insulating the warm masonry wall has to be approved by a fire inspector. It is prohibited to insulate flues that are in use!
ATTENTION! Covering the walls or floor with light protective material, for example, mineral tiles that are installed directly on the surface of the walls or ceiling might cause the dangerous overheating of the wall or ceiling material.

Floor of the sauna room

The heater stones in use crumble due to temperature changes. The pieces breaking away from the heater stones and pebbles are washed on the sauna floor with the steam-making water. Pieces of hot stone may damage plastic flooring under and near the heater. Heater stone particles and spray from the steam-making water (e.g., with iron content) may absorb into the light joints of a tile floor. In order to avoid aesthetic damage (caused by the reasons mentioned above), ceramic tiles and dark joint filler should be used under and around the heater.

Ventilation of the sauna

In order to ensure sufficient oxygen supply and fresh air, the sauna's ventilation should be as efficient as possible (air should exchange six times an hour).
The ventilation system depends on whether the building has a natural air inlet and outlet or forced ventilation.

Sauna ventilation consists of at least two, as a rule three parts:

1. Supply air pipe. The supply air pipe diameter should be ∅ 2-4 in (50-100mm).
2. Exhaust air pipe. The diameter of the exhaust air pipe should be 2x the diameter of the supply air pipe, ∅ 4-7.9 in (100-200mm).
3. Drying pipe. In the absence of a drying pipe opening, the door may be left open for ventilation after using the sauna.

In case of a sauna room with mechanical ventilation, there should be:

1. Supply air pipe in the middle of the heater or higher (≥ 15.7 in / 400 mm).
2. Exhaust air pipe in the opposite side of the heater (≤ 23.6 in / 600 mm from the floor).
3. Drying pipe opening in the opposite wall of the heater under the ceiling.

In case of a gravity based ventilation sauna room, there should be:

1. Supply air pipe in the middle of the heater or higher (≥ 15.7 in / 400 mm).
2. Exhaust air pipe in the opposite wall at least 7.9 in (200 mm) higher than the supply air pipe (≤ 23.6 in / 600 mm from the floor).
3. Drying pipe opening in the opposite wall of the heater under the ceiling.

The supply air pipe should be fitted with an adjustable valve.
If the exhaust air pipe is located in the washroom, there should be a gap of at least 4 in (100 mm) under the door of the sauna room.
Use the drying pipe opening as a final ventilation after a sauna session or in between water ladling sessions if there have been a lot of people in the room at once and there is excessive humidity or lack of air. Keep the drying pipe opening closed while having sauna.

• Before turning on the electric heater, always check the sauna room and heater.
• The heater may be used only when it has been correctly filled with stones.
• Do not cover the heater — this causes fire hazard.
• Do not touch a working heater, it causes burns.
• Incorrect ventilation of the sauna room may dry the wood too much and cause a fire hazard in the sauna.
• Only tap water may be used for making steam.
• Never make steam by using a water hose.
• There must always be at least 2 in (5 cm) of fireproof heat insulation under the boarding.
• Sauna doors must always open outwards.
• Do not use the sauna for a purpose it is not intended for.
• Do not install more than one heater into the sauna room.
• Undiluted sauna essences etc. may ignite when poured directly onto the stones.
• Do not leave small children unattended in the sauna.
• Sudden cooling after staying in the steam room is not recommended for people with poor health. Consult a doctor.
• Enjoy the sauna as long as it is comfortable for you.
• Keep this information at a safe place.
• The product' s warranty guarantee does not extend to heating elements.

ATTENTION! The following instructions for electrical works must be carried out by a licensed electrician.
ATTENTION! We recommend a specialist to lay the stones on the heater.
ATTENTION! This appliance is not intended for use by persons (including children) with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety.
ATTENTION! Children should be supervised to ensure that they do not play with the appliance.
ATTENTION! The installation instructions for appliances for public saunas that do not have a timer shall state that a pilot lamp showing that the heater is switched on is to be installed in the attendant's room. The previously provided manual does not contain this information.
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