INSTALLATION | Commissioning
30
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11. Commissioning
OCHSNER Customer Service or an authorised custom-
er service partner must be requested to commission the
system. In order to be allocated an appointment, a com-
pleted and signed commissioning form must be provided.
Commissioning appointments must be requested at least
two weeks in advance.
11.1
Before switching on for the first time
The heat pump has no separate ON/OFF switch. In an
emergency, the system must be shut down via the specified
safety equipment. The safety equipment must be acces-
sible so that an emergency shutdown can be performed
at any time.
WARNING: Electrocution
First-time start-up of electrical systems is permitted
only in the presence of a qualified contractor.
»
Make sure that no persons can be put at risk during
the first start-up.
»
Make sure that the heat sink system (heating and
DHW production) has been connected to the heat
pump.
»
Make sure that the hydraulic system is filled with
water.
»
Make sure that the system has been fully vented.
»
Make sure that the electrical installation has been
carried out and completed professionally.
Material damage
Operating the circulation pumps without water in
the system will destroy the pumps.
The power supply to the main power circuit (compressor)
must not be switched on until the brine circuit has been
filled with heat transfer medium (brine) and the hydraulic
system with the correct medium.
11.2 Testing the control circuit
Once all the above conditions have been checked, the pow-
er supply to the control circuit (OTE controller, 230 VAC)
can be switched on so that the individual functions can
be tested.
»
Check all of the sensors and their values for
plausibility.
»
Check all of the controller outputs used on your hy-
draulic system for correct function.
11.3
Adjusting the flow rate
The nominal flow rates of the heat sink and heat source
system must be ensured in each operating mode (DHW
charging, heating, cooling mode via separate cooling heat
pump buffer tanks, etc.).
The flow rate is measured using
the installed flow meters.
The measured values can be
read off from the master controller display on the indoor
unit.
11.3.1 Flow rate of the heat sink system
The flow rate of the heat sink system is adjusted using the
adjusting screw on the heat generator pump (HGP). To ena-
ble hydronic balancing according to the relevant standards,
in particular during combined heating or heating/cooling
and DHW heating modes, the appropriate balancing valves
must be installed and the system regulated accordingly.
11_02_200_204_01_019
1
1 Heat generator pump (HGP)
i
Information
To be able to change the flow rate in the heat sink
system, you will have to turn the adjusting screw
on the heat generator pump.
»
Remove the front casing panel of the indoor
unit to gain access to the heat generator
pump. (see page 20, Disassembling the ap-
»
Switch on the heat generator pump via the relay test
menu on the master controller.
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