Draining And Filling; Appliance Introduction - Saunier Duval 47-920-36 Instructions For Use Installation And Servicing

Caution: The boiler is installed as part of a sealed system
which must only be drained and filled by a competent person.
If the mains electricity and gas are to be turned off for any long
periods during severe weather, it is recommended that the
whole system, including the boiler, refer to diagram 1, should
be drained to avoid the risk of freezing. Make sure that, if
fitted, the immersion heater in the cylinder is switched off.
If in doubt, consult your servicing company.
F30E and F 35E
• If the boiler loses water: the pressure will be indicated (a)
and the boiler ON indicator (b) will flash red indicating a fault.
Fill the system by the filling device (c) at the bottom of the
boiler until the pressure gauge reads 1.0 bar. A mains pressure
of 2.0 bar is required to reach a fill pressure of 1.0 bar.
Reset boiler: refer to diagram 2, turn the On/Off switch to (0),
wait for five seconds. Turn the On/Off switch to ( I ) to reset
the appliance.
F30E SB Only
• If the boiler loses water: the pressure will be indicated (a)
and the running lamp (b) will flash red indicating a fault. Fill the
system with the external filling device until the pressure gauge
reads 1.0 bar.
Reset boiler: refer to diagram 2, turn the On/Off switch to (0),
wait for five seconds. Turn the On/Off switch to (I) to reset the
appliance.
• Warning: Take care not to overfill the boiler.
At a pressure of 2.5 bar or above indicating over pressure, the
boiler ON indicator (b) will flash red indicating a fault. The
pressure must be reduced to 1.0 bar by opening the drain
The F30E and F35 E boilers are wall mounted modulating
boilers with electronic ignition providing central heating and
hot water.
The F30E SB boiler is wall mounted modulating boiler with
electronic ignition providing central heating only.
The boiler is of the II category for use with Natural Gas (G20)
2H3+
as distributed in the United Kingdom, or Butane (G30), Propane
(G31) with the appropriate conversion kit.
The boiler has a fan assisted balanced flue which both
discharges the products of combustion to and draws the
combustion air from the outside of the room.
The central heating and domestic hot water (F30E/F35E only)
temperatures are user adjustable.
Domestic hot water demand (F30E/F35E only) always has
priority over heating demand.
The boiler is designed for use as part of a sealed water central
heating system with fully pumped circulation. The pump,
expansion vessel and associated safety devices are all fitted
within the boiler.
The boiler can be installed against either an external wall or on
an adjacent inside wall, that is, the flue system will pass directly

Draining and Filling

(a)
(b)
valve, refer to diagram 1. If the fault continues call the relevant
Servicing organisation or Saunier Duval Service using the
telephone number on the inside front cover of this literature.

Appliance Introduction

to the rear or to either side to the terminal fitted on the outside
wall face.
This boiler may be installed in any room, although particular
attention is drawn to the installation of a boiler in a room
containing a bath or shower where reference must be made to
the relevant requirements.
Any electrical switch or boiler control utilising mains electricity
should be placed so that it cannot be touched by a person
using the bath or shower.
In GB this is the current I.E.E. WIRING REGULATIONS and
BUILDING REGULATIONS.
In IE reference should be made to the current edition of I.S.813
"Domestic Gas Installations" and the current ETCI rules.
These instructions should be carefully followed for the safe and
economical use of your boiler. The 'User Controls and Lighting'
section describes how to safely use the boiler.
Note: The boiler serial number is marked on the data label
attached to the rear of the control box.
Accessories
A range of accessories are available.
For further information contact your supplier.
5
BOILER DRAIN
VALVE
(c)
Diagram 1
4000123924-2