Flue System - Potterton Envoy 30 Installation & Service Instructions Manual

INSTALLATION – Page 14
FIG. 10 REMOVING FUNCTIONAL CASE DOOR
FIG. 11 PIPE CONNECTIONS

FLUE SYSTEM

Assemble and attach the flue system to the boiler by following the instructions supplied with the flue kit.
Remove functional case door by undoing the two lower
securing screws and lift door off the two upper hinge
brackets.
Envoy 30 & 40 Only: These boilers are supplied with a
balancing disc in the separate fittings pack. The disc
should be fitted in the boiler return pipe before the
system pipework is connected to the boiler.
Envoy 30 disc - 7 mm diameter orifice
Envoy 40 disc - 9 mm diameter orifice
Connect system pipework to the boiler. A drain off tap
should be installed close to the boiler. Compression
nuts and olives are provided in Accessory pack 'C'.
Connect plastic condensate drain pipe to the outlet
connection at the base of the boiler.
Connect the gas supply pipe to the inlet connection of
the gas cock. The gas cock should be temporarily
disconnected from the gas control valve if a solder
connection is being made. Ensure that the 'O' ring seal
is correctly located between gas cock and gas control
valve on reassembly.
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