Instructions For Use; General; Operating Switches And Components - Harvia AV-4 Instructions For Installation Manual

1. INSTRUCTIONS FOR USE

This heater shall not be operated unless the rock
compartment is filled with the rocks.

1.1. General

The AV electric heater is the right choice for those
who like to bathe several times a week whenever they
feel like it, because the heater is always ready for
bathing. It only takes a few minutes (5–15) to raise
the sauna room temperature to a pleasant bathing level
(50–60 °C) provided that both the lid of the heater
and the air circulation valve are open and the heater
power is switched on.
The heater is effectively heat-insulated to maintain
the bathing temperature of the rock space (at approx.
310 °C) using a very low electric power level, ie a
standby power of 250 W.
On standby, the heater's daily energy requirement
from the electric network is only (24 hours x 0.250 kW)
6 kWh. This is turned into heat energy used for the
sauna premises, ie, the heater acts as a 250 W electric
radiator.
The heat power released by the heater is not wasted
because it is normally sufficient to keep the well heat-
insulated sauna room warm and dry. The amount of
heat energy required for the sauna can be balanced by
reducing the power produced by other heating devices
on the sauna premises.

1.2. Operating Switches and Components

1. The lid, with a silicon rubber packing, directs the
course of the steam coming from the hot rocks.
2. The wooden part of the lid handle allows the lid to
be safely closed by pressing the lid against the
locking bolt, whereupon the lid is locked.
3. By pressing the lid bolt, the lid springs open
assisted by the spring in the hinge. Slow down the
opening movement of the lid with your hand!
Figure 1. Operating Switches and Components
1. Lid
2. Lid Handle
3. Lid Bolt
4. Air Circulation Valve
Controller
5. Timer for Heater Power
6. On/Off Switch for Standby
Power
7. Reset Button for
Overheating Limiter
8. Junction Box
9. Control Box
10. Adjustable Legs
4. Use the air circulation valve regulator to open and
close the air valve on the bottom of the heater.
The air flowing through the heater enables the
heater to warm up. If the sauna room temperature
rises too high, close the valve slightly.
Always remember to close the valve after bathing!
5. The timer allows you to switch on the heater power
to the maximum for one hour to speed up the
warming of the sauna room. The turning of the
timer knob extends the time if one hour is not
enough.
NOTE! When the heater power is switched on, the
lid must be open. If the lid is closed and the heater
power is on, the temperature inside the heater will
quickly reach the switch-off temperature,
controlled by the thermostat, and the heater will
be switched off completely for several hours.
The heater's maximum output is required to ensure
that the rocks, warmed up by standby heat, will
remain hot. The timer will return from the set time
to zero; switch off the heater power and leave the
heater on standby. Make sure that the timer has
returned to zero before you close the lid!
6. The heater's standby power can be switched off
by the standby on/off switch if the heater is not
going to be used for a long time
7. The reset button of the overheating limiter is in
connection with the thermostat, located under the
cover of the heater's control box. If the overheating
limiter has permanently switched off the currents
to the heater, the regulator is reset in accordance
with Point 1.3.2.
8. Under the connection box cover, there is a terminal
block where to the heater's supply cable has to be
connected. The cables are brought to the terminal
block through the bottom of the heater.
9. The control box cover can be opened by
unscrewing the two screws on the cover. Under
the splashproof cover are the heater's electrical
components.
3.