Instructions premix Air heaters type XR10.. 60
Page 9/15
6.6 Functions of the DFC :
Lock out
(Red ) The alarmled lights up red,
when the DBC 577 is locked and the
alarmcontact is therefore active.
Burnerdemand Led
(Green ) This led lights up green,
when heat demand is present.
Service button
push 1 time = low load
push another time = high load
push 3 times = off (normal operation)
Reset button
push 1 time to reset
Potentiometer 1 (P1)
This one is for the manufacturer
only, it has no function for the end-
user.
Potentiometer 2 (P2)
This alters the set value for the the delta-T regulation to become active. This can be between
4°C (potentiometer completely anti-clockwise) and 15°C (potentiometer completely clockwise).
Factory setting: 10°C.
-
-
-
-
+
& #
#
# . ' /
+
& #
#
# . ' /
+
& #
#
# . ' /
+
& #
#
# . ' /
8.1 General
Prior to packaging, each unit is checked in detail on safety and well functioning. It is a.o.
adjusted to the right efficiency of combustion. In general, the heater is not needed to be
adjusted after installation, only a check of well functioning is necessary by a competent person.
Also obtain a flue gas analysis and record it for later reference.
Use only a calibrated instrument !
The CO2 value may be adjusted if necessary, only do this in case it turns out that the CO2
value is not correct. Do not ever turn injudiciously the adjusting screws!
Adjustment of the gascontrol without a supporting flue gas analysis will invalidate the warranty.
Once the unit is installed according this manual, the unit can be put into operation. Make sure
the gaspipe is clean, gastight and free from air.
Switch on the electric supply with the maintenance-switch, and open the door in order to be able
to observe the first start-up and so become familiar with the functioning of the heater.
Should the gas line not be purged correctly the heater will attempt to start twice before going
into a lock-out condition. Manual reset is necessary in that case.
Do not forget to instruct the end user about a safe use of the heater (presence of gas, place of
the manual gasvalve !), the operation of the heater (lock-out indication and reset) and about the
necessary maintenance. This manual must be left with the end user.
X4
1 2 3 4 5
1 2
3
1 2 3 4 5
Service
Reset
Red Green
IC
P1
P2
F1
2AT
3.15AT
F2
4
3
2
1
6 7 8
X5
X6
1
2
3
4
5
6
7
9
8
10
X2
X1
RE1
RE2
RE3
RE4
RE5
RE6
Fan High
F
an
M
ed
iu
m
Fa
n
Lo
w
D
B
C
O
N
A
la
rm
R
es
et
X3
DFC 100
