38
FA ROTEX HPSU monobloc compact • 09/2017
5
x
Start-up
a)
On connection without room station RoCon U1:
Ɣ
Set the heating characteristic curve or required T-HS.
b)
On connection with room station RoCon U1:
Ɣ
Activate the room station.
Ɣ
Set the heating characteristic curve or required T-HS. If
necessary, activate the [Room Influence] parameter and
set the room target temperature.
5.2
Re-commissioning
5.2.1 Requirements
–
The ROTEX HPSU monobloc compact is fully connected.
–
The heating and hot water system has been filled and pres-
surised to the correct pressure (see chap. 7.4).
–
The storage tank is filled up to the overflow (see chap. 7.3).
5.2.2 Start-up
1.
Check the cold water connection and, where necessary, fill
the potable water heat exchanger.
2.
Switch on the power supply to the ROTEX HPSU monobloc
compact.
3.
Wait for the start phase.
4.
After the start phase has completed, in heating mode,
evacuate the heating system, check the installation pressure
and adjust if necessary (max. 3 bar, see chap. 7.4).
5.
Carry out a visual inspection for leaks on all joints internally.
Seal any leaks that occur in a professional manner.
6.
Set the rotary switch on the controller to the desired operating
mode.
7.
If a ROTEX
solar system is connected, commission it
according to the enclosed instructions. After shutting off the
ROTEX
solar system, again check the fill level in the
buffer storage tank.
CAUTION!
Setting up in frosty conditions can result in
damage to the entire heating system.
Ɣ
Commissioning at temperatures below 0 °C
only if a water temperature of at least 5 °C is
guaranteed in the heating system and the
storage tank.
ROTEX recommends not operating the installa-
tion in extremely frosty conditions.
If the storage tank temperature falls below specific
minimum values, the ROTEX HPSU monobloc
compact's safety settings prevent the heat pump from
being operated at low outside temperatures:
–
Outside temperature < -2 °C
, minimum
storage tank
temperature = 30 °C
–
Outside temperature < 12 °C
, minimum
storage tank
temperature = 23 °C
.
Without backup heater:
The storage tank water must be heated to the required mini-
mum storage tank temperature with an external heater booster.
With backup heater (BUxx):
At an outside temperature of < 12 °C and a storage tank tem-
perature of < 35 °C, the backup heater (BUxx) is automatically
switched on to heat the storage tank water to at least 35 °C.
Ɣ
To
speed up
the
heating process with backup heater
,
temporarily
set
–
parameter
[Function Heating Rod]
= "1" and
–
parameter
[Power DHW]
to the
maximum value of the
backup heater
.
–
Set the rotary switch to
operating mode, and set
the parameter [1x Hot Water] to "On". After heating, set
the parameter to "Off" again.