Fujitsu WSYA050ML3 Design & Technical Manual page 106

• Electric immersion heater
Within the type of electric backup, 4 settings are possible:
– 3-stage:
Not used
– 2-stage excluding:
Not used
– 2-stage complementary:
The backup 1 starts alone, then the backup 2 starts alone, then the two backups starts simulta-
neously. Example for a 3 kW backup and a 6 kW backup, 1
stage: 3 + 6 = 9 kW.
– Modulating Ux:
The backup 1 is regulated as required.
• Basic unit EX/E
The type of contact can be selected as follows:
– NC:
The input's function is active when voltage is not present.
– NO:
The input's function is active when voltage is present. The descriptions relating to the functions
of the EX contact apply when an NO contact is selected.
• Sensor corrections
The outdoor temperature measuring value can be corrected within a range of ± 3 K.
3-13. Installation configuration functions
Line
5806 Type electric immersion heater flow
Line
5981 Contact type input EX1
5983 Contact type input EX2
5985 Contact type input EX3
Line
6098 Not used
6100 Readjustment outside sensor
Function
st
stage: 3 kW, 2
Function
Function
- (03-48) -
nd rd
stage: 6 kW, 3
3. Function table