6
Electrical heating coil
6.1 Layout and function of the electrical heating coil
Layout of the electrical heating coil
1
2
3
4
Fig. 19: Electrical heating coil, layout
1: Thermostat including
safety temperature limiter (STB)
2: Operating LED (On/Off)
3: Reset STB
4: Operating mode switch
(0 = off, I = automatic, II = manual mode)
Operating mode switch:
Automatic mode (I)
When the automatic mode is switched on, the
heating coil, in accordance with the set bivalence
point or the building heating load and selected inlet
temperature, is engaged after a time lag and
assists the heat pump in parallel operating mode.
Monoenergetic operation is not necessary for
the WSP series, as the heat source can guar-
antee year-round operation with the heat pump
if the system is appropriately rated. The heating
rod can be used for emergency heating, floor
drying or anti-freeze protection.
Manual operation (II)
When manual operation is engaged, the heating
coil is engaged directly, regardless of the parame-
ters in the Smart Control.
This function can be used in the emergency-heat
operation, or for the pre-heating of non-installed or
operationally capable outdoor units. The tempera-
ture is then set using the thermostat on the
housing.
In the manual mode of auxiliary heater, the circula-
tion pump in the hydraulic module of the heat
pump must be in operation.
NOTICE!
Pumps and changeover valves must be acti-
vated separately in manual operation.
It is not permitted to operate the heating coil
without the corresponding medium flow rate!
LED red (On):
This LED indicates if the heating coil is being acti-
vated or not.
Reset STB (Reset):
If the overheating of the heating coil has triggered
the safety temperature limiter (STL), it can be reset
after cooling down again by pressing this button.
However, the reason for it being triggered must be
analysed and remedied.
REMKO series WSP
36