Adjusting And Setting The Burner; Introduction - Lochinvar EcoForce EF80 Installation, Commissioning, User And Maintenance Instructions

ADJUSTING AND SETTING THE BURNER

Before carrying out any adjustments to the burner, carefully read this complete chapter.
I
NTRODUCTION
The burner must always be adjusted when:
A. - A new water heater is installed
- As part of a service/maintenance check, in case the CO
Adjustment procedures for the above can be found in 21.4.
B. - The gas control safety valve has been (re)placed
- Another type of gas is applied: gas conversion
Adjustment procedures for the above can be found in 0 .
In either of the four cases described in A and B, always check the gas/air ratio of the combustion figure (CO
First set the water heater at maximum load and subsequently at minimum load, and repeat if necessary.
Gas types and valves
The right type of valve must be selected, depending on the gas type. Gas types G20, G25 and G31 are commonly used; the water heaters are
equipped as standard with the A+C-class valves required for these types of gas.
Set-up of this chapter:
First, all required values are given in three tables below. A drawing of the gas valve(s) and setting screws is given in 21.3. In 21.3.1 a general
scheme to ensure you fully comply with these instructions using the correct procedure, A or B. After that, 21.4, a thorough description is given
of how to proceed in cases A and B respectively. Finally, two main procedures used in the previous sections are described in detail.
21.1.1 Adjustment tables
1)
gas type
G20
3)
propane G31
3) 4)
B/P G30/ G31
Cf. EN437.
2 All values measured without front door. The CO
table. Nominal values can be found in Technical specifications datasheet page.
3 Fan settings must be changed by altering parameter P4BD (display D8). (Only by a Service technician).
4 B/P: Propane/butane mixture.
Maximum fan speed has to be reduced to convert the boiler into a propane or B/P appliance.
Setting of parameter P4BD.
water heater type
EF 80-180
water heater type
EF 80-120
EF 150
EF 180
water heater type
EF 80-120
EF 150
EF 180
values turn out to be incorrect
2
CO [%]
2
max load min load
9.0 - 9.2 8.5 - 8.7
CO [%]
2
max load min load
10.3 - 10.5
10.4 - 10.6 9.1 – 9.3
10.5 - 10.7
CO [%]
2
max load min load
10.4 - 10.6
10.5 - 10.7 9.1 – 9.3
10.6 - 10.8
/ O values should always be between the values set in this
2 2
) at maximum and minimum input.
2
O [%]
2
max load min load
4.5 - 4.8 5.4 - 5.7
O [%]
2
max load min load
4.9 - 5.2
4.7 - 5.0 6.7 – 7.0
4.6 - 4.9
O [%]
2
max load min load
5.1 - 5.4
4.9 - 5.2 7.0 – 7.3
4.8 - 5.1
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