119
ENGLISH
10 START-UP AND CONFIGURATION
The unit should be configured by the installer to match the installation environment (outdoor climate, installed options, etc.) and user expertise.
It is important that all information in thi
s chapter is read sequentially by the installer and that the system is configured as applicable.
10.1 DIP switch settings overview
10.1.1 Function setting
DIP switch S1,S2 and S4 are located on the main control hydraulic module board (see "9.3.1 main control board of hydraulic module").
1 2 3 4
1
2 3 4
S1
S2
ON
OFF
1
2 3 4
S4
Switch off the power supply before making any changes to the DIP switch settings.
DIP
switch
ON= 1
OFF=0
Factory Defaults
DIP
switch
ON= 1
OFF=0
Factory Defaults
DIP
switch
ON= 1
OFF=0
Factory Defaults
S1
1/2
0/0=IBH (One-step
control)
0/1=IBH (Two-step
control)
1/1=IBH (Three-step
control
Refer to eletri
-
cally controlled
wiring diagram
S2
1
Start pump_o
after six
hours will be
invalid
Start pump
after six
hours will
be valid
Refer to eletri
-
cally controlled
wiring diagram
S4
1
M a s t e r
unit: clear
addresses
of all slave
units
Slave unit:
clear its
own ad
-
dress
Keep the
current
address
Refer to eletri
-
cally controlled
wiring diagram
3/4
0/0 = without BH and
AHS
1/0 = with IBH
0/1 = with AHS for heat
mode
1/1 = with AHS for heat
mode and DHW mode
2
without TBH
with TBH
2
Reserved Reserved
3/4
0/0=pump 1
0/1=pump 2
1/0=pump 3
1/1=pump 4
3/4
Reserved
10.2
Initial start-up at low outdoor ambient temperature
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. Please contact the responsible cast concrete building contractor for further details.
To do so, the lowest water flow set temperature can be decreased to a valve between 25°C and 35°C by adjusting the FOR SERVICEMAN.
Refer to 10.5.12 "SPECIAL FUNCTION" .
10.3 Pre-operation checks
Checks before initial start-up.
b
DANGER
Switch off the power supply before making any connections.
After the installation of the unit, check the following before switching on the circuit breaker:
Field wiring: Make sure that the field wiring between the local supply panel and unit and valves (when applicable), unit and room
thermostat (when applicable), unit and domestic hot water tank, and unit and backup heater kit have been connected according to the
instructions described in the chapter 9.7 "Field wiring", according to the wiring diagrams and to local laws and 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 14 "Technical specifications". 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 in the switchbox (it depends on the backup
heater type). Refer to the wiring diagram.
Booster heater circuit breaker: Do not forget to turn on the booster heater circuit breaker (applies only to units with optional domestic
hot water tank installed).
Ground wiring: Make sure that the ground wires have been connected properly and that the ground terminals are tightened.
Internal wiring:Visually check the switch box for loose connections or damaged electrical components.
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