Minimiser - Installation
2
GENERAL
CONTENTS
Air Supply ...................................................................... 6
Boiler Clearances .......................................................... 4
Boiler Exploded Diagram ........................................... 11
Electrical Connections ............................................... 21
Electrical Supply ........................................................... 6
Electrical Systems Diagrams ..................................... 23
Extension Ducts - Fitting ............................................ 20
Fault Finding ............................................................... 42
Flow Wiring Diagram .................................................. 22
Flue Fitting
Rear outlet .............................................................. 14
Side outlet .............................................................. 17
Flue Installation ............................................................. 5
Gas Safety (Installation & Use)
Regulations, 1994 ......................................................... 2
Gas Supply .................................................................... 5
Health & Safety Document No 635 .............................. 3
Installation ................................................................... 12
Mandatory Requirements ............................................. 4
Pump ............................................................................ 7
Servicing ...................................................................... 29
Short List of Parts ....................................................... 47
System Diagrams .......................................................... 7
Terminal Guards ............................................................ 5
Water Connections ....................................................... 4
Water and Systems ....................................................... 6
Wiring Diagrams.......................................................... 22
INTRODUCTION
Minimiser FF 30-80 are fully automatically controlled, wall
mounted, low water content, balanced flue, fanned super
efficient condensing gas boilers. They are spot-rated to
provide central heating outputs of 8.8 kW (30,000 Btu/h) to
23.4 kW (80,000 Btu/h).
Due to the high efficiency of the boiler a plume of water vapour
will form at the flue terminal during operation.
The boiler casing is of white painted mild steel with a drop-
down control pod door. The controls pod, also of white painted
mild steel, has fixed sides and a removable bottom panel.
The boiler thermostat is located behind the controls pod door.
The heat exchanger is of aluminium.
Note. These boilers cannot be used on systems which include
gravity circulation.
The boilers are suitable for connection to fully pumped, open
vented or sealed water systems. Adequate arrangements for
completely draining the system by provision of drain cocks
MUST be provided in the installation pipework.
OPTIONAL EXTRA KITS
Programmer Kit Fits neatly within the casing, is available.
Separate fitting instructions are included
with this kit.
Roof Flue Kit For vertical flue connection.
Powered Vertical For extended vertical flue connection.
Flue (K Pack)
Extension Ducts Up to 3.1m (122") are available.
Wall Mounting Enables the boiler to be mounted with the
Stand-off Kit Front flush with 300mm deep kitchen units.
GAS SAFETY (INSTALLATION AND USE)
REGULATIONS, 1994
It is law that all gas appliances are installed and serviced by a
CORGI registered installer (identified by
) in accordance
with the above regulations. Failure to install appliances
correctly could lead to prosecution. It is in your own interest,
and that of safety, to ensure the law is complied with.
The installation of the boiler MUST also be in accordance with
the latest I.E.E Wiring Regulations, local building regulations,
bye-laws of the local water authority, the building regulations
and the Building Standards (Scotland) and any relevant
requirements of the local authority.
Detailed recommendations are contained in the following British
Standard Codes of Practice:
BS. 6891 Low pressure installation pipes.
BS. 6798 Installation of gas fired hot water boilers of rated
input not exceeding 60 kW.
BS. 5449 Forced circulation hot water systems.
BS. 5546 Installation of gas hot water supplies for
domestic purposes (2nd Family Gases)
BS. 5440:1 Flues (for gas appliances of rated input not
exceeding 60 kW)
BS. 5440:2 Ventilation (for gas appliances of rated input not
exceeding 60 kW)
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