8 Commissioning
Installer and user reference guide
19
FFA25~60A2VEB(9)
Split system air conditioners
4P550955-4 – 2018.08
a
b
c
a
All-round air flow
b
3-way air flow (1 air outlet closed) (optional blocking pad kit
required)
c
2-way air flow (2 air outlets closed) (optional blocking pad
kit required)
Setting: Air volume when thermostat control is OFF
This setting must correspond with the needs of the user. It
determines the fan speed of the indoor unit during thermostat OFF
condition.
1
If you have set the fan to operate, set the air volume speed:
If you want
Then
1
Outdoor unit
M
C1
C2
General
2MX/3MX/4M
X/5MX
During cooling
operation
LL
2
12
(22)
6
01
Setup volume
2
02
During heating
operation
LL
2
Monitoring 1
2
12
(22)
3
01
Setup volume
2
Monitoring 2
2
02
Setting: Time to clean air filter
This setting must correspond with the air contamination in the room.
It determines the interval at which the
TIME TO CLEAN AIR FILTER
notification is displayed on the user interface. When using a wireless
user interface, you must also set the address (see the installation
manual of the user interface).
If you want an interval of…
(air contamination)
Then
1
M
C1
C2
±2500 h (light)
10 (20)
0
01
±1250 h (heavy)
02
No notification
3
02
8
Commissioning
8.1
Overview: Commissioning
This chapter describes what you have to do and know to
commission the system after it is installed.
Typical workflow
Commissioning typically consists of the following stages:
1
Checking the "Checklist before commissioning".
2
Performing a test run for the system.
8.2
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
Before starting up the system, the unit MUST be energised
for at least 6 hours. The crankcase heater needs to heat
up the compressor oil to avoid oil shortage and
compressor breakdown during startup.
NOTICE
NEVER operate the unit without thermistors and/or
pressure sensors/switches. Burning of the compressor
might result.
NOTICE
Do NOT operate the unit until the refrigerant piping is
complete (when operated this way, the compressor will
break).
NOTICE
Cooling operation mode
. Perform the test run in cooling
operation mode so that stop valves failing to open can be
detected. Even if the user interface was set to heating
operation mode, the unit will run in cooling operation mode
during 2‑3 minutes (although the user interface will display
the heating icon), and then automatically switch to heating
operation mode.
NOTICE
If you cannot operate the unit in test run, see
"8.5 Error
codes when performing a test run" on page 21
.
WARNING
If the panels on the indoor units are not installed yet, make
sure to power OFF the system after finishing the test run.
To do so, turn OFF operation via the user interface. Do
NOT stop operation by turning OFF the circuit breakers.
8.3
Checklist before commissioning
After the installation of the unit, first check the following items. Once
all below checks are fulfilled, the unit MUST be closed, ONLY then
can the unit be powered up.
You read the complete installation instructions, as
described in the
installer reference guide
.
The
indoor units
are properly mounted.
(1)
Field settings are defined as follows:
▪
M
: Mode number –
First number
: for group of units –
Number between brackets
: for individual unit
▪
C1
: First code number
▪
C2
: Second code number
▪
: Default
(2)
Fan speed:
▪
LL
: Low fan speed
▪
Setup volume
: The fan speed corresponds to the speed the user has set (low, medium, high) using the fan speed button
on the user interface.
▪
Monitoring 1, 2
: The fan is OFF, but runs for a short time every 6 minutes to detect the room temperature by Low fan
speed (1) or by Setup volume (2).
Summary of Contents for FFA25A2VEB9
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