Roberts Gorden UHD[X][S][R] 400 Manuel D’Utilisation

35

The heat exchanger consists of a four-pass design with 1.75" outer diameter [409 stainless steel] tube. The 
tube plates are made of [aluminized steel] [409 stainless steel]. The tube supports are made of 
[galvannealed steel] [409 stainless steel]. 

IT IS IMPORTANT THAT ONLY THE CORRECT FLUE BLOWER SPECIFIED FOR EACH MODEL TYPE 
IS USED WHEN REPLACING THESE ITEMS.
Carry out a start-up after working on or changing a flue blower. See Page 24, Section 11.

Flue Blower P/N

90710405

90710403

90710402

Remove screws securing 
outlet flange to the flue 
adapter.

Refit in reverse order.

Remove screws securing flue 
blower mounting plate to vent 
box.

Remove screws securing 
mounting plate to blower.

Refit in reverse.

Use new gaskets. 

Ensure sealed joints.

Ensure mounting plate orifice 
is clear and not obstructed.