6 Commissioning
Installation manual
17
EWAQ+008BAVP
Packaged air-cooled water chillers and packaged air to water heat
pumps
4P478610-1 – 2017.02
6
Commissioning
NOTICE
NEVER operate the unit without thermistors and/or
pressure sensors/switches. Burning of the compressor
might result.
6.1
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.
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
"3.2 Preparing water piping" on page 5
.
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 functions. If – after first
installation – the installer returns to the site, the installer
has to set [4‑0E] to "1" manually.
6.2
Checklist during commissioning
The
minimum flow rate
is guaranteed in all conditions.
See "To check the water volume and flow rate" in
"3.2 Preparing water piping" on page 5
.
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).
6.2.1
To perform an air purge
Prerequisite:
Make sure that the leaving water temperature home
page and room temperature home page are turned OFF.
1
Go to [A.7.3]:
> Installer settings > Commissioning > Air
purge.
2
Set the type.
3
Select Start air purge and press
.
4
Select OK and press
.
NOTICE
The outdoor unit is equipped with a manual air purge
valve. The air purge procedure requires manual action.
NOTICE
When purging air with the manual air purge valve of the
unit, collect any fluid that might leak out of the valve. If this
fluid is NOT collected, it might drip on internal components
and damage the unit.
