ermaf TR 75 - Setting Mode; Checking the Direction of Rotation; Of the Main Fan; Adjusting the Heater

GB-9
D
GB
F
NL
I
E
▷ The main fan cools the heater down until it
reaches switch-off temperature.
CAUTION
– Do not disconnect the heater from the electrical
power supply until the cooling process has been
completed.
▷ The display “–” will go out.
Setting mode
▷
You can go to Setting mode by pressing and
holding the MODE selection button when the
heater is switched off.
• Switch off the heater
OFF 1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
.
▷ Mode E: eBus addresses can be saved.
Mode A/F: multi-functional outputs can be pa-
rameterized.
MFA 2 MFA 1
eBus address
Mode E
Mode A/F
MODE
button
MODE button
MODE
button
MODE
button
eBus adddress 1 ... eBus address 8
Save eBus address
0 Inactive
1 Fault (NC)
2 Fault (NO)
3 Operation
4 Standby
0 Inactive
1 Main fan
active
2 Main fan
inactive
3 Modulation
enable
> 2 s MODE button
> 2 s MODE button > 2 s MODE button
> 2 s MODE button > 2 s MODE button > 2 s MODE button
> 2 s MODE button
OFF
▷ Press the RESET button to return to the previ-
ous menu.
▷ After a timeout of 20s, the display will auto-
matically return to the initial mode. The display
indicates “–”.
Checking the direction of rotation of the main
fan
 Switch on the power supply.
 Release the gas supply.
 Switch on the TR. Press ON/OFF
OFF 1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
.
4 Select operating mode
3
Controlled air flow.
▷ The main fan will start.
▷ If it is turning in the correct direction, the fan
blades will turn clockwise.
▷ If the direction of rotation is incorrect, fault
codeA 8 will be displayed.
5 Switch off the TR. Press ON/OFF
OFF 1
2
3
4
5
AUTO
+AUT
MODE
(RESET)
ON/OFF
O
.
6 Disconnect the heater from the electrical power
supply and rectify the fault, see page12 (As-
sistance in the event of malfunction).
Adjusting the heater
▷ The heater is set to the gas type specified in the
purchase order.
▷ The fine adjustment on the gas combination
control is made on the basis of the CO
2
meas-
urements on the chimney.
▷ The following are required for setting:
– 2.5mm Allen key,
– pressure gauge with display range 0to 50mbar,
– CO
2
flue gas analyzer. The flue gas analyzer must
be able to measure O
2
, CO and CO
2
. The sen-
sor should be suitable for temperatures of up to
300°C.
▷ The inlet pressurep
u
must comply with the tech-
nical data, see page27 (Technical data).
▷ The inlet pressure p
u
can be measured using a
test point on the combination control.
+
–
D
+–
N
k
p
u
–
+
CO
2
–
+
CO
2
 Open test point p
u
.
▷ Do not use force!
 Connect a pressure gauge to p
u
.
 Disconnect the system from the electrical power
supply.
▷ The heater may only be disconnected from the
electrical power supply once the device has been
switched off and post-cooling is complete.
4 Shut off the gas supply.
5 Remove the plastic cap from the CO
2
test point
on the chimney.