REMEHA Quinta 85 Technical Information download pdf (Page 51)

15. Re-establish power supply to boiler and isolate controls.

16. Use manual override to start the boiler (press and hold for 5 seconds[-]-key (green

LED should appear in h-symbol)

17. The boiler should start with the run sequence (3) indicated in the ‘code’-display,

see Par. 6.3.

18. Check the boiler for correct gas/air setup in full load by measuring the O

levels in

the flue gas (direct measurement of CO

can lead to inaccuracies due to varying

levels of CO

in the natural gas). Proceed as follows:

Correct gas/air setup:

18 a. Force the boiler into high fire by pressing ‘m’ and [+] -keys simultaneously. The

code box will show and H in the display

18 b. When full load speed is reached check values against Table 16 (setting data) and

adjust if necessary using the screw on the venturi, turning screw anti clockwise

will increase CO

, turning screw clockwise will decrease CO

, (see Fig. 20)

18 c. Check flame via inspection window, the flame should be stable, mainly blue with

burner surface covered with orange dots.

18 d. Force the boiler into low fire by pressing the m’ and [-] -keys simultaneously.

The code box will show an L in the display; please see Par. 6.1.3.

When part load speed is reached, check values against Table 16 and adjust if

necessary using the screw on gas combi block,(adjustment screw is protected by

a cover - both cover and adjustment screw are torx star type keys) turning screw

clockwise will increase CO

, turning screw anti clockwise will decrease CO

, (see

Fig. 20) Check flame via inspection window, the flame should be stable, with a

regular blue flame distribution and orange burner surface

Fig. 20 Setting screws

00.W4H.79.00005

ß full-load setting screw

Þ part-load setting screw

1 2 ... 46 47 48 49 50 51 52 53 54 55 56 ... 67 68

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REMEHA Quinta 85 Technical Information Page 51