Daikin SERHQ032BAW1, Инструкция по установке и эксплуатации

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8 Commissioning
Installer and user reference guide
43
SERHQ020~0 SEHVX20~64BAW
Split packaged air-cooled water chiller
4P508020-1A – 2018.01
(b) If the indoor temperature is lower than 15°C due to leak
detection operation and the outdoor temperature is lower
than 20°C, the heating operation will start to maintain basic
comfort heating level.
7.4 Switching between cooling and
heating
Switching the unit between cooling and heating can be done in
2 different ways, depending on how the temperature is controlled,
i.e. based on room temperature or based on leaving water
temperature.
Switching between cooling and heating with the user interface
If unit control is based on room temperature (external room
thermostat or user interface room thermostat), switching between
cooling and heating is done by pushing the cooling/heating button on
the user interface.
TO IN/D
UNIT
F1 F2
DS1
1 2 3 4
OFF
ON
O
U
T
I
N
F1 F2 P1 P2 P1 P2
a
a User interface
Switching between cooling and heating with the cool/heat
selector
If unit control is based on leaving water temperature, we suggest
using the ABC terminals on the outdoor unit. The location of the
terminals is shown in the following figure.
A B C
A B C
a
DS1
1 2 3 4
OFF
ON
O
U
T
I
N
a Cool/heat selector
1 Press BS5 for 5 seconds to re-initialise communication of the
unit.
▪ Cooling: voltage free contact between terminals A and C is
open
▪ Heating: voltage free contact between terminals A and C is
closed
EB0568(A)
R4 C2 R2 R1 C1 R3
X1M
PHC2 PHC1
X1A
1
A B C
INFORMATION
Thermostat input has priority over leaving water
temperature setpoint.
It is possible that the leaving water temperature becomes
lower than the setpoint if the unit is controlled by room
temperature.
8 Commissioning
8.1 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 the outdoor
unit".
2 Checking the "Checklist before commissioning the indoor unit".
3 Performing a final check.
4 Performing a test run.
5 If necessary, correcting errors after abnormal completion of the
test run.
6 Operating the system.
8.2 Precautions when commissioning
DANGER: RISK OF ELECTROCUTION
DANGER: RISK OF BURNING
CAUTION
Do NOT perform the test operation while working on
the indoor units.
When performing the test operation, NOT only the outdoor
unit, but the connected indoor unit will operate as well.
Working on an indoor unit while performing a test operation
is dangerous.
CAUTION
Do NOT insert fingers, rods or other objects into the air
inlet or outlet. Do NOT remove the fan guard. When the
fan is rotating at high speed, it will cause injury.
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
Be sure to turn on the power 6 hours before operation in
order to have power running to the crankcase heater and
to protect the compressor.
CAUTION
▪ Make sure that the circuit breaker on the power supply
panel of the installation is switched off.
▪ Make sure that the power wire is securely attached.
▪ Make sure there is no missing or wrong N-phase.