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Fixing Slot
Fig. 35
Condensate
Discharge (remove
plug before connection)
ReturnFlow
Fig. 36
3
N
Fig. 37
1 2
7.0Installation
7.3Siting the Boiler
IMPORTANT - This product should be lifted and handled by two people. Stooping should be avoided and protective equipment worn where necessary. Carrying
&lifting equipment should be used as required, e.g. when installing on another floor.
1.Lift the boiler from the packing base and place into the opening.
2.Align the boiler centrally as far back in the opening as possible, and ensure the distance between each side and the opening is equal. Check that the boiler is level.
3.Mark the hearth through two of the slots in the base (Fig. 35). Remove the boiler and drill the hearth. Insert suitable plugs. Replace the boiler & check the alignment within the opening. Secure the boiler with suitable screws.
7.4Water Connections
1.The boiler has one return and one flow connection. The flow is the upper connection. It is essential the flow and return pipes are connected correctly (Fig. 36).
7.5Gas Connection
1.Connection to the gas supply is a 15mm compression fitting on the gas cock. The gas supply pipe must be routed from the right hand side.
2.The positioning of the gas supply pipe must not restrict the servicing of the boiler or installation of the firefront.
7.6Electrical Connection
1.The boiler requires an electrical supply from the heating controls system.
WARNING: The appliance must be earthed.
The input cable for the appliance should be 0.75mm2 to IEC Code 227 (heat resistant). The system external controls and the boiler must be supplied by the same isolator. The boiler MUST NOT be connected to the
same supply as the firefront as their fuse ratings are different.
7.7Making the Electrical Connection
1.Take the 5 pin plug from the boiler fitting kit, remove the securing screws and hinge the cover open.
2.Route the mains inlet cable under the cable clamp and connect Permanent Live, Neutral &Earth to 3, N &
respectively. Ensure that the Earth lead is longest.
3.Connect the switched output from the system external control system to terminal 1.
4.Refit the cover, tighten the screws to secure the cable and connect the plug to the one on the boiler.
24© Baxi Heating UK Ltd 2009