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4.5.5 Preparation of flue gas recirculation connection (Option)
In case of configuration of the boiler with optional flue gas recirculation (FGR), the fol‐
lowing preparation work has to be carried out:
❒ Remove the blanking plate on the fire box on the left by the infeed unit
❒ Fix the inter-flange for flue gas recirculation connection along with seal on the boil‐
er. Take the previously dismounted screws.
➥ The central c-profile in the inter-flange has to point downwards to the boiler.
➥ Press nuts have to be at the outer flange
Assembly
4
Mounting steps
Installation Instructions TX 150-250 | M1320112_en
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