Adjusting the hot water temperature 9
0020200967_00 SUSTAIN ..s Installation and maintenance instructions
21
Overview of diagnostics codes (
→
Page 28)
8.2.1
Pump diagrams
0
1
2
3
4
5
6
7
0,0
0,2
0,4
0,6
0,8
1,0
1,2
1,4
1,6
1,8
A
B
PWM 5%
PWM 20%
PWM 31%
PWM 41%
PWM 52%
PWM 62%
PWM 73%
A
Remaining feed head
[mbar]
B
Flow rate [m
3
/h]
8.3
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
.
If the pump operating mode
d.14 Pump speed target value
= Auto (∆p limit) is set, the default setting must not be
changed.
▶
Remove the front casing. (
→
Page 10)
1
▶
Regulate the pressure using the adjusting screw
(1)
.
Position of the adjusting
screw
Notes/application
Right-hand stop (screwed
all the way in)
If the radiators do not heat
up sufficiently at the default
setting. In this case, you must
set the pump to the maximum
speed.
Mid-position (six anti-
clockwise rotations)
Default setting
Five further anti-clockwise
rotations starting from the
mid-position
If noises are produced in the
radiators or radiator valves.
▶
Fit the front panel. (
→
Page 10)
9
Adjusting the hot water temperature
You can reset/change the system parameters (
→
section
"Using diagnostics codes").
Overview of diagnostics codes (
→
Page 28)
9.1
Setting the hot water temperature
Danger!
Risk of death from Legionella.
Legionella multiply at temperatures below
60 °C.
▶
Ensure that the operator is familiar with all
of the Anti-legionella measures in order
to comply with the applicable regulations
regarding legionella prevention.
▶
Set the hot water temperature.
Conditions
: Water hardness: > 3.57 mol/m
³
–
Hot water temperature:
≤
50
℃
10 Handing the product over to the
operator
▶
When you have finished the installation, attach the sticker
supplied (in the operator's language) to the product
cover.
▶
Explain to the operator how the safety devices work and
where they are located.
▶
Inform the operator how to handle the product.
▶
In particular, draw attention to the safety information
which the operator must follow.
▶
Inform the operator of the necessity to have the product
maintained on a regular basis.
▶
Instruct the operator about measures taken to ensure the
supply of combustion air and flue gas pipe.
11 Inspection and maintenance
11.1
Observing inspection and maintenance
intervals
▶
Comply with the minimum clearances for the inspection
and maintenance. Depending on the results of the in-
spection, it may be necessary to bring maintenance work
forward.
Inspection and maintenance work
–
Overview
(
→
Page 37)
Содержание ENERGY 12s-A
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