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3. Set parameter 92 and 93
The fan speed has to be changed in the software of the water heater according to the tables below:
Water heater
type
EFW 85
Internal
EFW 105
igniter
EFW 125
EFW 155
1. From status screen, press MENU button once.
2. Press UP/DOWN ↑ ↓ to select "Settings" and press ENTER
3. Press UP/DOWN ↑ ↓ to select "Boiler Settings" and press ENTER
4. Enter installer password by pressing UP/DOWN ↑ ↓ and LEFT ← / RIGHT → and press ENTER
5. Press UP/DOWN ↑ ↓ to select "Boiler parameters" and press ENTER
6. Press UP/DOWN ↑ ↓ to select parameter "(92) Fan Speed Maximum" and press ENTER
7. Press UP/DOWN ↑ ↓ to adapt the fan speed according to the table and press ENTER
8. Press UP/DOWN ↑ ↓ to select parameter "(93) Fan Speed Minimum" and press ENTER
9. Press UP/DOWN ↑ ↓ to adapt the fan speed according to the table and press ENTER
To return to the status screen, press ESCAPE
Check during start-up of the water heater no gas mixture is leaking on all parts that have been apart.
4. Adjust the O
/ CO
percentage
2
2
Perform O
/ CO
adjustments according to the procedures in § 19.2;
2
2
water heater type
EFW 85
EFW 105
EFW 125
EFW 155
REMARKS:
Allowed tolerances are O
All values measured without front door.
5. Check the gas pressure
Measure the gas pressure at high fire. The pressure (dynamic) should be at least 25 mbar. If there are more
boilers in the boiler room the gas pressure should be checked on the boiler at the end of the gas line, with all
boilers burning at high fire. If gas pressure is too low, check gas lines, reducers and propane tank.
6. Confirmation
When finished:
- Apply the corresponding sticker at the appropriate position in the
water heater.
- Mark the box for the used gas type.
- Mark the box "Type", indicating that the correct parameter values
have been set for this heater.
It is possible to improve the ignition spark by using an external ignition transformer. Available on request, see
the accessories list.
Fan speed high fire
parameter 92
Propane G31
Nat. gas
6500
7400
7300
7900
7200
7950
5750
6450
or MENU
O
2
max load
4.9 / 10.5
5.2 / 10.3
5.2 / 10.3
5.2 / 10.3
± 0.2 and CO
± 0.1
2
2
E93.1804.014
Fan speed low fire
parameter 93
Propane G31
1850
2000
1950
2000
4 times, or RESET
once.
/ CO
(%) Propane G31
2
min load
6.7 / 9.3
6.7 / 9.3
6.4 / 9.5
6.4 / 9.5
Nat. gas
1800
1900
2000
1800
115
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