Service Manual

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4.5 Gas Manifold
The gas manifold is a gas distribution pipe with integrated drilled injectors.
Figure 15 – Disassembling the manifold from the heat cell
To disassemble the manifold from the burner the necessary steps are the following:
1. Remove the fan
2. Disconnect the solenoids from the top left of the manifold
3. Disconnect the segmentation safety valves
4. Remove the HMI for installer (see figure 13). In the first picture the HMI is already removed
except its base.
5. Remove 4 screws from the manifold to separate it from the burner.
6. Loosen the screw from the gas tube.
7. Rotate and push up the manifold at the same time to remove it from the appliance
To assure a wide modulation range for the appliance, the manifold cover allows the gas supply to be
utilized across 3 different segments.
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