Vaillant ecoFIT pure Installation And Maintenance Instructions

Adapting the unit to the heating installation 8
0020230533_01 ecoFIT pure Installation and maintenance instructions 19
8.1 Burner anti-cycling time
To prevent frequent switching on and off of the burner and
thus prevent energy losses, an electronic restart lockout
is activated for a specific period each time the burner is
switched off. The burner anti-cycling time is only active for
the heating mode. Hot water handling mode during a burner
anti-cycling time does not affect the time function element.
8.1.1 Setting the burner anti-cycling time
1. Navigate to diagnostics code D.002 in the installer level
and confirm by pressing .
2. Set the burner anti-cycling time and confirm by pressing
.
T
Flow
(tar-
get)
[°C]
Set maximum burner anti-cycling time [min]
1 5 10 15 20 25 30
30 2.0 4.0 8.5 12.5 16.5 20.5 25.0
35 2.0 4.0 7.5 11.0 15.0 18.5 22.0
40 2.0 3.5 6.5 10.0 13.0 16.5 19.5
45 2.0 3.0 6.0 8.5 11.5 14.0 17.0
50 2.0 3.0 5.0 7.5 9.5 12.0 14.0
55 2.0 2.5 4.5 6.0 8.0 10.0 11.5
60 2.0 2.0 3.5 5.0 6.0 7.5 9.0
65 2.0 1.5 2.5 3.5 4.5 5.5 6.5
70 2.0 1.5 2.0 2.5 2.5 3.0 3.5
75 2.0 1.0 1.0 1.0 1.0 1.0 1.0
T
Flow
(target)
[°C]
Set maximum burner anti-cycling time
[min]
35 40 45 50 55 60
30 29.0 33.0 37.0 41.0 45.0 49.5
35 25.5 29.5 33.0 36.5 40.5 44.0
40 22.5 26.0 29.0 32.0 35.5 38.5
45 19.5 22.5 25.0 27.5 30.5 33.0
50 16.5 18.5 21.0 23.5 25.5 28.0
55 13.5 15.0 17.0 19.0 20.5 22.5
60 10.5 11.5 13.0 14.5 15.5 17.0
65 7.0 8.0 9.0 10.0 11.0 11.5
70 4.0 4.5 5.0 5.5 6.0 6.5
75 1.0 1.0 1.0 1.0 1.0 1.0
8.1.2 Resetting the remaining burner anti-cycling
time
▶
Press .
8.2 Setting the pump output
The product is equipped with a speed-regulated high-effi-
ciency pump, which adjusts independently to the hydraulic
conditions of the heating installation.
If you have installed a low loss header in the heating install-
ation, you should switch off the speed regulation and set the
pump output to a fixed value.
▶ If required, change the setting of the pump speed, which
depends on the operating mode, under diagnostics code
d.14.
Overview of diagnostics codes (→ Page 28)
8.2.1 Pump diagrams
12s:
0
50
100
150
200
250
300
350
0 200 400 600 800 1000
A
B
1
2
A Remaining feed head
[mbar]
B Flow rate [l/h]
1 Max. PWM
2 Min. PWM
15s:
0
50
100
150
200
250
300
350
0 200 400 600 800 1000 1200
A
B
1
2
A Remaining feed head
[mbar]
B Flow rate [l/h]
1 Max. PWM
2 Min. PWM
18s:

Vaillant ecoFIT pure Specifications

General

Fuel Type	Natural Gas
Dimensions (H x W x D)	700 x 390 x 295 mm
ErP Rating	A
Mounting	Wall-mounted
Modulation	1:5
Type	Combination Boiler
Warranty	2 Years
Efficiency Rating	94%