6.2 Emergency-heat operation
Should you experience faults with the Smart-Con-
trol or the outdoor module during operation of your
heat pump system, it is possible to activate a
manual emergency-heat operation. To do so, the
electric heating coil, internal primary pump, and if
necessary the circulation pumps heating cycle
must be switched on manually.
To activate
emergency-heat operation if the
Smart-Control fails
, proceed as follows:
1.
Open the front panel (door).
2.
Set the black knob of the electrical terminal
box (located on the left-hand side) for the
auxiliary heater to "position 2".
3.
Set the thermostat on the electrical terminal
box of the auxiliary heater to the desired tem-
perature, e.g. floor heating 35 °C, heating
element 50 °C.
4.
Remove the control line plug of the internal
circulation pump in the indoor unit of the heat
pump. By pulling out the control line, the cir-
culation pump runs at full load in manual
mode.
5.
If you are using external heating cycle groups
(pumps), adjust these using the handwheel
on the front.
6.
If you are using external heating cycle groups
(pumps), HGU or HGM from Remko, you
should also set the rotating wheel on the
front of the pump to the "5 o'clock" position.
7.
Remove the servo motor of the three-way
changeover valve by pulling out the safety
split pin between motor and valve body (see
separate "Three-way changeover valve"
operating instructions).
8.
Pull the motor away from the valve body.
9.
Turn the cylindrical ball valve in the direction
of Outlet B using the round side (FBH
heating side or heating element).
To switch to providing hot water, proceed as fol-
lows:
1.
Turn the cylindrical ball valve in the direction
of Outlet A using the round side (drinking
water storage tank).
2.
Set the thermostat on the electrical terminal
box of the booster heater to the desired tem-
perature, e.g. 50 °C.
The following directions of flow must be realised
manually:
Valve connection B - Heating
Valve connection A - Drinking water storage tank
The respective operating modes must be
switched manually!
To activate
emergency-heat operation if the
compressor fails
, proceed as follows:
1.
Pressing the menu key (---) of the Smart-
Control for approx. 5 seconds takes you to
the "Expert" level. Enter the password
"0321".
2.
Deactivate the heat pump in the "Settings -
Basic settings - System configuration" menu
point of the expert level. After the heat pump
has been switched off, the auxiliary heating
will be released.
3.
The electric heating element is then acti-
vated.
4.
Check the set temperature on the thermostat
of the electric heating element.
5.
If necessary set it above the max. desired
temperature (HW target temperature), e.g. if
HW target temperature = 45 °C, then heating
element = 50 °C.
6.
The Smart-Control takes full control of heat
regulation and the activation of the heating
element.
1
2
3
4
5
Fig. 20: 3-way switching valve
1: Servo motor
2: Safety split pin
3: Connection A, Drinking water storage tank
4: Connection B, Heating
5: Connection AB
37