Viessmann BWT 241.A Series, Installation And Service Instructions Manual

Page: 15 / 124

15
N
1 / N / PE
230 V/ 50 Hz
N
N
L1
L1
L1
N1
N1
N1
L1
L1
L1
PE
PE
Instantaneous heating water heater
power supply 230 V~
3 / N / PE
400 V/ 50 Hz
N
L2
L3
L1
N2
L2
L3
L1
N3
N1
PE
PE
Instantaneous heating water heater
power supply 400 V~
Required parameter settings
To call up "Coding level 1" for setting
the parameters, see the commissioning
assistant on page 59 and page 62.
Parameter Setting
"System definition"
■ "System scheme 7000" "6"
DHW heating:
"Time program DHW heating" Set time program (see oper-
ating instructions)
"Time program DHW circulation"
(if a DHW circulation pump is installed)
Set time program (see oper-
ating instructions)
"DHW"
■ "Enable booster heaters for DHW heating 6014" "1"
■ "Enable electric heaters for DHW heating 6015" "1"
"Solar"
■ "Type solar control unit 7A00" "4"
Instantaneous heating water heater :
"Electr booster heater"
■ "Enable instantaneous heating water heater
7900" "1"
■ "Enable instant. heating water heater for central
heating 7902" "0"
"Heating water buffer cylinder"
■ "Enable buffer cylinder / low loss header 7200" "1"
Remote controls (if installed):
"Heating circuit 1"
■ "Remote control 2003" "1"
"Heating circuit 2"
■ "Remote control 3003" "1"
Preparing for installation
System example, ID: 4605091_1102_03
(cont.)
5601 598 GB
Installation