46
Installation and Servicing
Section 3 - Servicing
SER
VICING
3.16 CONDENSATE TRAP REPLACEMENT / CLEANING
1. Carefully release the six retaining clips and remove control
box cover.
2. Unplug all lead connections to the PCB.
3. Spring out the four side retaining clips and pull the PCB
upwards to clear the corner retaining posts.
4. Take the new PCB and re-connect all plug connections.
5. Reassemble in reverse order.
6. Switch mains power on, wait for “
u
P
” to be shown.
7. Simultaneously press Mode & Restart buttons so that “
o
F
” is
shown.
8. Switch mains power off and wait for 5s.
9. Switch mains power on, wait for “
F9
” to be shown.
10. Rotate the temperature knob until “
F9 H
” is shown.
11. Press Restart.
12. Rotate the temperature knob until “
F9
n” is shown.
13. Press Restart.
14. Rotate the temperature knob until the appropriate boiler
output is shown (12 kW, 15 kW, 18 kW, 24 kW or 30 kW).
15. Press Restart.
16. The boiler type (
H
), gas type (n), output (12/15/18/24/30)
and parameter set number will be shown in rotation.
If this is OK press Restart to complete the configuration,
otherwise switch mains power off to start again.
17. Check that the boiler operates.
WARNING:
It is critical that the correct boiler size
and fuel type is entered in to the boiler.
CAUTION:
Fit the earth strap provided with the PCB
to your wrist and secure to a suitable earth on the
boiler chassis.
1.
Drain the boiler.
2.
Pull off the electrical connection.
3.
Turn the retaining collar anti-clockwise and pull the head
from the housing.
4.
Fit the new water flow switch head, ensuring the electrical
lead connections wires point to the left as shown.
Refer to Section
2.33 & 2.34
Refer to Section
3.2
Refer to Section
3.3
3.17 FLOW SWITCH REPLACEMENT
3.18 PRIMARY PCB REPLACEMENT
1
Refer to Section
3.2
1
COMBI
HEA
T / SYSTEM
SL1
L
IN
L
IN
SL2
OPTIONAL
FROST STAT
ROOM
STAT/
TIMER L N
MAINS IN
UIN
230010 A01
L N
MAINS IN
3
Refer to Section
3.2
Содержание LOGIC HEAT2 H12
Страница 56: ...56 Installation and Servicing Section 6 Benchmark to Commissioning ...
Страница 62: ...62 Notes Installation and Servicing ...
Страница 63: ...63 Notes Installation and Servicing ...