MULTIPOINT FF
Room Sealed Fan-Assisted Water Heater
6 720 607 160 (04.02) JS
Please leave these instructions with the user
User Operating, Installation
and Servicing Instructions
2 6 720 607 160
Natural Gas
Main Multipoint FF
G.C. No 52-467-02
User information
Your Main Multipoint FF is designed to meet all relevant
standards.
Main provide a 12 month guarantee on the appliance. The
guarantee operates from the date installation is completed
for the customer who is the original owner.
Any component or part which becomes defective during the
guarantee period as a result of faulty workmanship or
materials whilst in normal use will be repaired or replaced
free of charge.
This appliance conforms to European Standard EN 26.
Type test for purpose certified by Notified Body CE-0087.
Product/Production certified by Notified Body CE-0464.
For GB / IE only.
Care must be taken when lifting and handling this appliance,
seek assistance where appropriate. Protective equipement
(e.g. gloves) should be warn as necessary.
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1. User’s operating instructions ...................................... 4
2. General layout ............................................................... 5
3. Technical Data ...............................................................6
4. Dimensions and fixings .................................................7
5. General inormation ....................................................... 8
6. Installation Regulations ................................................ 8
7. Siting the Appliance ..................................................... 9
8. Siting the Flue Terminal ............................................ 10
9. Air supply ....................................................................... 11
10. Gas supply ................................................................... 11
11. Electrical ...................................................................... 13
12. Installation .................................................................... 13
13. Commissioning ............................................................ 18
14. Performance optimization ......................................... 19
15. Inspection and Servicing .......................................... 20
16. Replacement of parts ................................................ 22
17. Fault Finding ................................................................ 24
18. Short Parts List ........................................................... 25
19. Notes ............................................................................. 26
page
Contents
Section
4 6 720 607 160
1. User’s Operating Instructions
Switching on and off:
On
1. Turn the main switch to position I.
Water temperature control:
1. Turn the control to the desired temperature.
Fault indication:
The appliance incorporates a fault indication system.
Fault indication is shown by a red light on the reset button.
If pressing the reset button does not restart the appliance,
consult your installer.
1. Turn the main switch to position 0.
Off
The hot water temperature is set by the control position.
Turn the control clockwise to increase the temperature and
anticlockwise to decrease.
When the control is set at the maximum position the highest
water temperature is achieved by controlling the flow at the
tap.
Note: if the appliance is to be left unused in an unheated
area during cold weather the electricity, gas and water
supplies should be isolated and the system drained.
Your installer will be able to advise you.
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2. General Layout
Fig. 3
Appliance water flow diagram.
Fig. 4
Appliance components
4 Electronic control box
5 Heat sensor
6 Water flow sensor
10 Main switch
11 Temperature control
12 Reset button
13 Burner Indicator Button
17 Safety solenoid EV1
25 Water filter
28 Hot water pipe
29 Cold water pipe
35 Gas inlet pipe
42 Gas filter
49 Injector
50 Burner
55 Heat exchanger
92 Gas valve
117 Ignition electrode
118 Sensing electrode
119 Temperature limit stat
200 Minimum gas flow adjustment
screw
201 Maximum gas flow adjuster
210 Main valve
221 Flue support ring
222 Exhaust gas collector
224 Flow sensor
226 Fan
228 Pressure switch
229 Sealed box
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3. Technical Data
T ABLE 1 - GENERAL
T ABLE 3 - PERFORMANCE
T ABLE 2 - FLUE DET AILS
The appliance and flue components are packed in separate cartons.
The appliance is for use with Natural Gas only.
The Installation notes in these Instructions, particularly those regarding Maximum Flue Lengths and Configuration
Options, take precedence over any universal instructions included in flue component packs.
Wall hole size 110 mm Diameter
Standard Horizontal Flue Kit
490mm wall thickness rear outlet Sales Code 430183
400mm wall thickness side outlet
Horizontal Flue Kit
680mm wall thickness rear outlet Sales Code 430184
590mm wall thickness side outlet
Flue Extension 1m Sales Code B4286
90° Bend Kit Sales Code 31/19034
135° Bend Kit Sales Code 31/19035
Telescopic Flue In Line Elbow Adaptor Sales Code 430174
Vertical Adaptor Sales Code 238014
Concentric Vertical Flue Kit Sales Code 238015
Flat roof flashing kit Sales Code 31/19040
Pitched roof flashing kit Sales Code 31/19041
Wall liner / internal flu e fixing kit Sales Code 238012
Terminal guard Sales Code 205792
Maximum cold water supply inlet pressure 12 bar
Minimum cold water supply inlet pressure to operate the appliance 0.3 bar
Domestic hot water delivery with temperature control knob fully anticlockwise 4 to 14 litres/minute at
25°C tem
p
erature rise
Domestic hot water delivery with temperature control knob fully clockwise 2.5 to 6 litres/minute at
55°C tem
p
erature rise
Natural Gas
Gas category
I
2H
Appliance Type
C
12
, C
32
Minimum rated output 10 kW
Maximum rated output 23.8 kW
Rated input (Net) 27 kW
Gas rate (CV 34 MJ/m
3
)2.9 m
3
/hr
Inlet pressure 20 mbar
Number of injectors 14
Injector diameter 1.20 mm
Injector marking 120
Burner pressure (max) 12.7 mbar
Burner pressure (min) 2.5 mbar
Height 700 mm
Width 388 mm
Depth 220 mm
Dry weight 20 kg
Gas connection 15mm Copper
Hot/cold water connections 15mm Copper
Electrical
p
rotection IPX4D
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4. Dimensions and Fixings
Fig. 5
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5. General Information
5.1 GENERAL INSTALLATION
If the appliance is to be fitted into a compartment, the
compartment must conform to the requiremens of BS 6798.
Do not place anything on top of the appliance.
The clearances specified for servicing must be maintained.
5.2 SHOWERS
If a shower control is supplied from the appliance it should
be of the thermostatic or pressure balanced type.
Thermostatic type shower valves provide the best comfort
and guard against water at too high a temperature. Existing
controls may not be suitable - refer to the shower valve
manufacturer.
6.1 Warning - Check the information on the data plate is
compatible with local conditions.
The installation must be carried out by a CORGI Registered
Installer or other registered competent person and be in
accordance with the relevant requirements of the current
Gas Safety (Installation and Use) Regulations, the building
regulations (Scotland) (Consolidation), the local building
regulations, the current I.E.E Wiring Regulations and the
bye laws of the local water undertaking.
Where no specific instruction is given, reference should be
made to the relevant British Standard Code of Practice. For
Ireland, install in accordance with IS 813 “Installation of
Gas Appliances”.
6.2 B.S Codes of Practice
Standard Scope
BS 6891 Gas Installation
BS 5546 Installation of water supplies for
domestic purposes
BS 6798 Installation of gas fired hot water boilers
BS 5440 Part1 Flues
BS 5440 Part2 Ventilation
WARNING - The addition of anything that may interfere
with the normal operation of the appliance without the
express written permission of Baxi Potterton could invalidate
the appliance warranty and infringe the Gas Safety
(Installation and Use) Regulations.
6. Installation Regulations
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7. Siting the Appliance
7.1 The appliance is NOT suitable for external installation.
7.2 The appliance is NOT suitable for SEDUCT
application.
7.3 The appliance does not require any special wall
protection.
7.4 The wall must be capable of supporting the weight of
the appliance. See Technical Data – Table 1.
7.5 If the appliance is to be fitted in a timber framed
building, refer to the Institute of Gas Engineers, ”Guide
for gas installations in timber framed housing” IGE/UP/7.
7.6 The following advisable clearances must be available
for installation and for servicing:
7.7 The minimum clearances required for Operation are:
7.8 The appliance can be installed in a cupboard used
for airing clothes provided that requirements of BS 6798
and BS 5440:2 are strictly followed. See section 9 for further
detail.
7.9 The airing space must be separated from the appliance
space by a perforated non-combustible partition. Expanded
metal or rigid wire mesh are acceptable provided that the
major dimension is less than 13 mm.
See BS 6798
Table 4
Above case 120 mm
In front 600 mm
Below 50 mm
Ri
g
ht hand side 10 mm
Left hand side 10 mm
Table 5
Above case 120 mm
In front 60 mm
Below 50 mm
Ri
g
ht hand side 10 mm
Left hand side 10 mm
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