Electric Heater Insulation Resistance; Resetting The Overheat Protector - Harvia HCBU1712241 Owner's/Operator's Manual

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Heater model
Input
kW
HCBU1712241
1,7
HCBU1912241
1,9
HCBU352401
3,5
Table 3. Supply wires
1.
2''
8,7''
7,1''
3,1-7,8''
Figure 7.
Installing the wall-mounting device (1.) and the heater (2.–3.)

3.6. Electric heater insulation resistance

When performing the final inspection of the electri-
cal 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.
Do not connect the power feed for the heater
through the RCD (residual current device)/GFI
(Ground Fault Interrupter)!

3.7. 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.
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 environ-
ment. 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.
Voltage
Ph
Frequency
V
Hz
120/240
1
60
120/240
1
60
1
60
240
2.
6 x
EN
Amperage
A
120 V
240 V
14,2
7,1
15,9
8
-
14,4
3.
Figure 8.
Reset button for overheat protector
Min. 90 °C Copper supply wire
AWG No.
120 V
240 V
14
14
14
14
-
14
Installation example, Parts not supplied
Exemple d'installation, pièces non fournies
11

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