Commissioning; System Setup; System Configuration; Settings - Grant Aerona 290 Installation & Operating Instructions Manual

9 COMMISSIONING

9.1

SYSTEM SETUP

With the desired system installed and completed, commissioning
will be required.
! CAUTION !
It is important that all information in this section is
read sequentially by the installer and that the system is
configured as applicable.
9.1.1 PRE-OPERATION CHECKS
Checks before initial start-up:
Ensure the power supply is isolated before making any
connections.
After the installation of the unit, check the following before
switching on the circuit breaker:
• Installation wiring: Make sure that the installation wiring
between the local consumer unit, isolator, heat pump,
controls and valves (when applicable), domestic hot
water cylinder, and backup immersion heater, have been
connected following the instructions described in section 6 in
accordance with the IET wiring regulations.
• Fuses, circuit breakers, or protection devices: Check that
the fuses or the locally installed protection devices are of the
size and type specified in section 6. Make sure that no fuses
or protection devices have been bypassed.
• Backup heater circuit breaker: Do not forget to turn on
the backup heater circuit breaker (applies only to units with
optional domestic hot water cylinder installed).
• Ground wiring: Make sure that the earth wires have
been connected properly and that the earth terminals are
tightened.
• Internal wiring: Visually check the switch box for loose
connections or damaged electrical components.
• Mounting: Check that the heat pump is properly mounted to
avoid abnormal noises and vibrations when starting up the
heat pump.
• Damaged equipment: Check the inside of the heat pump for
damaged components or squeezed pipes.
• Refrigerant leak: Check the inside of the unit for refrigerant
leakage. If there is a refrigerant leak, contact Grant UK.
• Power supply voltage: Check the power supply voltage
from the local consumer unit. The voltage must correspond to
the voltage on the identification label of the unit.
• Automatic air vent: Make sure the cap on the automatic air
vent is open (at least 2 turns).
• Isolation valves: Make sure that both the isolation valves
are fully open.
9.1.2 TURNING THE HEAT PUMP ON
The installed isolator is the primary switch and as such, the heat
pump will start once the isolator has been set to 'ON'.
9.1.3 TURNING THE SMART CONTROLLER ON
The power switch for the Grant Aerona Smart controller is located
on the left side of the wiring centre, when facing it from the front.
For information relating to the powering ON of the Grant Aerona
Smart Controller, refer to Section 5 of your supplied manual:
• DOC 0203 - for systems without Grant QR pre-plumbed
cylinder
• DOC 0205 - for systems with Grant QR Smart pre-plumbed
cylinder
Page 40
9.1.4 INITIAL START-UP AT LOW OUTDOOR AMBIENT
TEMPERATURE
For under floor heating systems, during initial start-up and when
water temperature is low, it is important that the water is heated
gradually. Failure to do so may result in concrete floors
cracking due to rapid temperature change.
9.1.5 FAULT ON INITIAL SWITCH ON
If nothing is displayed on the touch screen display, it is necessary
to check for any of the following problems:
• Wire Disconnection or wiring error (between the heat pump,
wiring centre and touch screen display)
• The fuse on the hydraulic module PCB may have failed
• The fuse on the Smart Controller wiring centre PCB may
have failed
If the touch screen display shows a 'P01' error code, there is a
possibility that there is air in the system, or the water level in the
system is less than the required minimum.
If the touch screen display shows a 'E01' error code, check the
connections between the wiring centre and heat pump.
Refer to section 11 for details on error codes.
9.2

SYSTEM CONFIGURATION

The Grant Aerona Smart Controller integrated system
configuration creator will aid with the setup of the space heating
and DHW system within the software of the touchscreen display.
The steps in the configuration creator should reflect the system
you have designed and electrically connected to the wiring centre.
For information relating to System configuration on of the Grant
Aerona Smart controller, refer to Section 6 of your supplied
manual:
• DOC 0203 - for systems without Grant QR pre-plumbed
cylinder
• DOC 0205 - for systems with Grant QR Smart pre-plumbed
cylinder
9.2.1 COMMISSIONING CHECKLIST
The supplied manual for the Smart controller offers an easy to
follow commissioning checklist for the installer. In addition, the
section includes suggested circuit settings based on concept
drawings offered by Grant UK (Refer to Online resources section
for QR links) and common heating circuits required.
For information relating to the commissioning on of the Grant
Aerona Smart controller, refer to Appendix F of your supplied
manual:
• DOC 0203 - for systems without Grant QR pre-plumbed
cylinder
• DOC 0205 - for systems with Grant QR Smart pre-plumbed
cylinder
9.2.2 WEATHER COMPENSATION
For information relating to Weather compensation on the Grant
Aerona Smart controller, refer to Section 7.13 of your supplied
manual:
• DOC 0203 - for systems without Grant QR pre-plumbed
cylinder
• DOC 0205 - for systems with Grant QR Smart pre-plumbed
cylinder
9.3

SETTINGS

The parameters to control the heat pump and the installed space
heating and DHW are managed via the touchscreen display.
There are multiple levels of access which manage various
elements:
• User settings
• System settings
• Heat pump parameters
Section 9: Commissioning