Atag A325ECX Installation & Servicing Instructions

Installation & Servicing instructions ATAG A-Series
33
Parameter-chapter
PAR
A
Factor
y
Description
Ran
g
e
518 5 Gradient s
p
eed CH 0 - 15
(
0=off
)
520 5 Night decrease temperature (only active at 100% weather dependant):
The day temperature will be decreased by this value
0 - 10 K
532 24 Heating line CH-water temperature (see also heating line graph) 10 - 40
541 max. Maximum power CH in %
Can only be reduced. 0 = low load
0 - max
555 Outside sensor functions (only when outside sensor is connected):
b0 and b1: no function
off b2: off = weather dependant control with room thermostata leading and
outside temperature on the background
on = 100% weather dependant control acoording day and night heating line
contact open = night heating line; contact closed = day heating line; When ON par. 520 is active
on - off
b3: no function
on b4: frost protection CH
from +1.5°C until -5: 10 min./ 6 hour pump on; < -5 °C pump continuously.
on - off
b5 t/m b7: no function
637 4,6
Do not chan
g
e
651* 1
Do not chan
g
e
1 - 3
652* 0 Quick selection CH installation:
CH Tmax: 85°C; Gradient: 5; Heating line 24 1
CH Tmax: 70°C; Gradient: 5; Heating line 19 2
CH Tmax: 60°C; Gradient: 4; Heating line 15 3
CH Tmax: 50°C; Gradient: 3; Heating line 11 4
This parameter copies the choosen value over CH Tmax., P518 and P532.
It is a quick selection, where the separate values will be independantly adjustable.
After selection this parameter will always show 0.
680 0
Service-
p
arameter. Do not chan
g
e
0 - 10
681 off Green button function
Dependant of the level the factory settings at selection b7 and OK will be set back,
P651 excluded.
on - off
682 D
y
namic functions:
off
b0: Do not chan
g
e
on - off
b1 until b6: no function
off b7: confirmation Service-parameter on - off
683 0% Correction factor fan speed for ø60/100 flue system
See table at flue lenghtes. The adjusted value will increase the fan range with that
percentage. Write down this value on the sticker on the boiler.
OSS1: 0-15%
OSS2: 0-30%
684 Pum
p
function:
off b0:
p
um
p
automatic
(
= off
)
or continuousl
y (
= on
)
on - off
on b1: DHW function eco
(
= off
)
or comfort
(
= on
)
on - off
When both selected ON than function 'pump continously' is leading
in case of frost dan
g
er
687 4,0
Do not chan
g
e
* Note When an adjustment is made and it is confirmed with OK the boiler will restart and
the de-aerationprogramm will start.
Parameter chapter Table 11.4.a

Atag A325ECX Specifications

General

Brand	Atag
Model	A325ECX
Category	Boiler
Language	English