Setting The Bypass Valve; Setting The Domestic Hot Water Temperature - Vaillant ecoFIT pure Series Installation And Maintenance Instructions Manual

B
350
300
250
200
150
100
50
0
0 200 400 600
A Remaining feed head
[mbar]
B Flow rate [l/h]
30c:
B
450
400
350
300
250
200
150
100
50
0
0 200 400 600
A Remaining feed head
[mbar]
B Flow rate [l/h]
35c:
B
400
350
300
250
200
150
100
50
0
0 500
A Remaining feed head
[mbar]
B Flow rate [l/h]
30
1
2
A
800 1000 1200
1 Max. PWM
2 Min. PWM
1
2
800 1000 1200
A
1 Max. PWM
2 Min. PWM
1
2
1000 1400 A
1 Max. PWM
2 Min. PWM
10.3

Setting the bypass valve

Caution.
Risk of material damage caused by incor-
rect setting of the high-efficiency pump
If the pressure at the bypass valve is in-
creased (by turning it clockwise) and the
pump output is set to less than 100%, the
product may not operate correctly.
▶
In this case, set the pump output to
5 = 100% using diagnostics parameter
d.14.
1. Remove the front casing. (→ Page 16)
1
2. Regulate the pressure using the adjusting screw (1).
Position of the adjusting
screw
Right-hand stop (screwed
all the way in)
Mid-position (six anti-
clockwise rotations)
Five further anti-clockwise
rotations starting from the
mid-position
3. Install the front casing. (→ Page 16)
10.4

Setting the domestic hot water temperature

1. Observe the applicable regulations regarding legionella
prevention.
Danger!
Risk of death from legionella.
Legionella multiply at temperatures below
60 °C.
▶
Ensure that the end user is familiar with
all of the Anti-legionella measures in order
to comply with the applicable regulations
regarding legionella prevention.
2. Set the domestic hot water temperature.
Installation and maintenance instructions ecoFIT pure 0020230531_06
Notes/application
If the radiators do not heat
up sufficiently at the factory
setting. In this case, you must
set the pump to the maximum
speed.
Factory setting
If noises are produced in the
radiators or radiator valves.