STARTING AND STOPPING THE HYBRID SYSTEM
6 720 803 688 (2012/11)
7
4
STARTING AND STOPPING THE HYBRID
SYSTEM
The specified sequences and delays must always be observed when
starting and stopping the hybrid system. Otherwise the hybrid system
components could suffer severe damage.
4.1
STOPPING THE HYBRID SYSTEM
Switching off the hybrid system:
▶ Reset any current heat demands using the programming unit.
▶ After stopping the operation, wait at least 5 minutes. Only then isolate
the power supply to the hybrid manager and the external unit.
Otherwise, water leakage or breakdown may result.
4.2
ENSURING FROST PROTECTION
4.3
RESTARTING THE HYBRID SYSTEM AFTER AN
INTERRUPTION IN OPERATION
4.4
SETTING UP HEATING MODE
Make the following adjustments on the condensing boiler or on the
FW200 programming unit:
• Maximum flow temperature
With underfloor heating systems observe the maximum permissible flow
temperature. Older underfloor heating systems generally require higher
flow temperatures than more modern systems.
• Maximum DHW temperature
• Setback mode
• Summer mode
• Frost protection
4.5
SETTING HYBRID SYSTEMS
4.5.1
OVERVIEW OF THE CONTROL MODES
Symbols
Current room temperature
Flashing segment:
Current time (
09:30
to
09:45
)
Solid segments:
Time set for operating mode
= Comfort today (1
segment = 15 min)
Empty segments:
Time set for operating mode
= Economy today (1
segment = 15 min)
No segments:
Time set for operating mode
= Frost today (1 segment =
15 min)
Operating mode Comfort for heating circuit
Operating mode Economy for heating circuit
Operating mode Frost for heating circuit
Automatic mode for heating circuit
Holiday mode
Burner operation on display for heating circuit
+
Scroll menu/info text up
or increase value
–
Scroll menu/info text down
or decrease value
OK
Open menu, confirm setting/value or switch heating circuit
Return to next menu up
Delete/reset value
Bring forwards the next switching time and the associated
operating mode
= Comfort
= Economy
= Frost
for the heating circuit to now.
Activate DHW heating immediately. The DHW cylinder is
heated to the required temperature for 60 minutes or, with
combi boilers, comfort mode is activated for 30 minutes. If
the ECO button is active for combi boilers, the
button has no function.
The hybrid control module regulates the times the air to
water heat pump and the condensing boiler are in use,
subject to the parameters entered into the FW200
programming unit.
▶ Never isolate the power supply to the hybrid manager
and the external unit during standard operation.
9
21
15
3
advance
advance
advance
NOTICE:
Frost damage
When the heating system is switched off, it can freeze up
if there is a frost.
▶ In the case of a risk of frost, have the DHW circuit
drained by an a competent person or mix antifreeze
that is approved for use with the respective
condensing boiler into the heating water.
Whether antifreeze may be used and which type is
permissible depends on the installed condensing boiler.
▶ Observe the details in the condensing boiler
installation instructions.
NOTICE:
Damage to the external unit from low operating
temperature.
When restoring the power supply following an
interruption of operation.
The Power supply to the external unit must be ‘live’ for at
least 12 hours before starting operation. This is to
ensure that the compressor is warmed up sufficiently to
avoid any liquid refrigerant from entering the
compressor. This is particularly important during colder
periods.
The 12 hour period also compensates for any unsettling
of the lubricating oil within the compressor which may
have occurred during transportation.
If this 12 hour time period cannot be met damage to the
outdoor unit may result.
▶ If the appliances fail to start contact your installer.
The separate operating instructions of the condensing
boiler or the FW200 programming unit include
information on the steps required.
These parameters can be set either via the FW 200
weather-compensated controller or via the hybrid
control module. These values are transferred and
overwritten respectively. The following section will
describe how to make the settings using the FW 200
weather-compensated controller.
