INSTALLATION | Commissioning
982000-AIR-M2-M4-EN03.1 | www.ochsner.com 43
11.5 Necessary conditions for commissioning
Before commissioning, the system installer must ensure
the following points:
►
The design and installation of the system have been
approved by OCHSNER.
►
The OCHSNER guidelines have been observed
(system installed according to OCHSNER standard
hydraulic schemes or a special OCHSNER hydraulic
system).
►
The system datasheet is available and has been fully
and correctly completed.
1. The heat sink system is fully ready (heating and
DHW heating).
►
The hydraulic pipework has been correctly di-
mensioned and installed such that the required
nominal flow rates can be set.
►
The heat sink system has been flushed, filled and
vented according to the required standards.
►
The quality of the system fill water is assured to
meet the required standards (VDI 2035).
►
Operating pressure has been set and the system
temperature and buffer temperature lie between
20°C and 30°C at the time of commissioning.
►
The necessary safety devices are in place and
have been adjusted and checked according to sys-
tem requirements.
►
A DHW cylinder is present and has been filled for
commissioning.
►
All shut-off valves have been opened, adjusted
and checked.
►
The flow meter has been checked for correct
functioning.
►
The system has been hydraulically balanced.
2. The heat source system has been prepared.
►
The hydraulic pipework has been correctly di-
mensioned and installed such that the required
nominal flow rates can be set.
►
The necessary safety devices are in place and
have been adjusted and checked according to sys-
tem requirements.
►
The wall outlet has been properly sealed.
►
In the case of air/water and direct evaporation/
water heat pumps, if the routing of the con-
nection lines by the system installer has been
contractually agreed:
Ensure that the refrigerant lines between the
indoor and outdoor units have been correctly
routed in accordance with refrigeration engineer-
ing guidelines. The refrigerant lines have been
correctly channelled through the wall outlets with
some surplus length between the connections at
the indoor and outdoor units.
►
In the case of brine/water heat pumps:
The system pressure and addition of frost pro-
tection additive (between -12°C and -15°C) have
been assured. The heat source system has been
flushed, filled and vented according to standards.
►
In the case of water/water heat pumps:
All filters have been checked and cleaned.
The
water quality is in accordance with OCHSNER
guidelines.
i
Information
OCHSNER will accept no liability for damage (e.g.
to plate heat exchangers) caused by poor water
quality.
3. The electrical installation has been completed.
i
Information
Provisional electrical installations are not permissi-
ble and will lead to commissioning being cancelled.
►
Electrical connection and installation work has
been carried out, checked and completed in ac-
cordance with national and regional regulations.
►
A safety device that will shut down across all poles
has been provided on every supply (compressor,
heat source pump and controller). Every additional
heat generator is also provided with its own safety
device.
►
The three-phase supply has been checked to en-
sure a clockwise rotating field.
4. On site requirements
►
An authorised and technically competent repre-
sentative of the system installer (the heating or
electrical contractor) is present along with the sys-
tem user during the commissioning.
►
Customer-specific controller settings are available
(heating curve and functional logic, according to
system datasheet).
►
Where connections are in a duct or on the roof, an
assistant has been provided by the customer.
►
Climbing aids and/or fall protection (compliant
attachment points) have been provided on site in
accordance with the required standards.
