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9 Commissioning
9
Commissioning
9.1
Overview: Commissioning
This chapter describes what you have to do and know to
commission the system after it is configured.
Typical workflow
Commissioning typically consists of the following stages:
1
Checking the "Checklist before commissioning".
2
Performing an air purge.
3
Performing a test run for the system.
4
If necessary, performing a test run for one or more actuators.
5
If necessary, performing an underfloor heating screed dryout.
9.2
Precautions when commissioning
INFORMATION
During the first running period of the unit, the required
power may be higher than stated on the nameplate of the
unit. This phenomenon is caused by the compressor, that
needs a continuous run time of 50 hours before reaching
smooth operation and stable power consumption.
NOTICE
NEVER operate the unit without thermistors and/or
pressure sensors/switches. Burning of the compressor
might result.
9.3
Checklist before commissioning
Do NOT operate the system before the following checks are OK.
Depending on the system layout, not all components may be
available.
You read the complete installation instructions, as
described in the installer reference guide.
The outdoor unit is properly mounted.
The control box is properly mounted.
The option box is properly mounted.
Only if you use the optional backup heater:
The backup heater is properly mounted.
The following field wiring has been carried out according
to the available documentation and the applicable
legislation:
▪ Between the local supply panel and the outdoor unit
▪ Between the outdoor unit and the control box
▪ Between the control box and the option box
▪ Between the control box and the backup heater
▪ Between the local supply panel and the control box
▪ Between the local supply panel and the option box
▪ Between the outdoor unit and the valves
▪ Between the control box and the room thermostat
The system is properly earthed and the earth terminals
are tightened.
The fuses or locally installed protection devices are
installed according to this document, and have not been
bypassed.
The power supply voltage matches the voltage on the
identification label of the unit.
Installer reference guide
66
There are NO loose connections or damaged electrical
components in the switch box.
There are NO damaged components or squeezed
pipes on the inside of the outdoor unit.
Only if you use the optional backup heater:
Depending on the backup heater type, backup heater
circuit breaker F1B (on the switch box of the backup
heater) is turned ON.
The correct pipe size is installed and the pipes are
properly insulated.
There are no water leaks inside the outdoor unit.
The shut-off valves are properly installed and fully open.
The pressure relief valve purges water when opened.
The minimum water volume is guaranteed in all
conditions. See "To check the water volume" in
"6.3 Preparing water piping" on
The water circuit is properly protected against
freezing, according to the instructions set out in
protect the water circuit against freezing" on
If glycol was added to the system, confirm the correct
glycol concentration, and check if glycol setting [E‑0D]=1.
NOTICE
▪ Make sure glycol setting [E-0D] matches the liquid
inside the water circuit (0=water only, 1=water+glycol).
If the glycol setting is NOT set correctly, the liquid
inside the piping can freeze.
▪ When glycol is added to the system, but the glycol
concentration is lower than prescribed, the liquid inside
the piping can still freeze.
INFORMATION
The software is equipped with an "installer-on-site" mode
([4‑0E]), that disables automatic operation by the unit. At
first installation, setting [4‑0E] is by default set to "1",
meaning automatic operation is disabled. All protective
functions are then disabled. If the user interface home
pages are off, the unit will NOT operate automatically. To
enable automatic operation and the protective functions,
set [4‑0E] to "0".
36 hours after the first power-on, the unit will automatically
set [4‑0E] to "0", ending "installer-on-site" mode and
enabling
the
protective
installation – the installer returns to the site, the installer
has to set [4‑0E] to "1" manually.
9.4
Checklist during commissioning
The minimum flow rate is guaranteed in all conditions.
See "To check the water volume and flow rate" in
"6.3 Preparing water piping" on
To perform an air purge.
To perform a test run.
To perform an actuator test run.
Underfloor screed dryout function
The underfloor screed dryout function is started (if
necessary).
Packaged air-cooled water chillers and packaged air to water heat
page 23.
"7.7.6 To
page 35.
functions.
If
– after
first
page 23.
EWAQ+EWYQ004+005BAVP
pumps
4P492900-1 – 2017.06
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