Chaffoteaux & Maury Mira system FF Installation And Operating Manual Download Page 5

5

4.1 REGULATIONS

PRIVATE HOMES

STATUTORY REQUIREMENTS FOR INSTALLATION AND
MAINTENANCE

Installation and maintenance of the equipment must be car-
ried out by a qualified professional in accordance with cur-
rent legislative texts and state of the art, including:

- law of 2 August 1977

Technical and Safety rules applicable to combustible gas
and liquefied gas petroleum installations located inside
buildings or outbuildings

- law of 5 February 1999 modifying the law of 2 August

1977

after replacing a boiler with an identical one (same align-
ment and area as the previous equipment), the installer
must make out a "model 4" certificate of conformity

Standard DTU P 45-204 

gas installations (previously DTU N°61-1 - Gas
Installations - April 1982 + additional clause N°1 of July
1984)

Regional Health Regulations

Protection of the drinking water network:

• articles 16-7 and 16-8 of the Regional Health Regulations

require the installation to have a CB type disconnection
device with various non-controllable pressure zones,
conforming to the functional requirements of 

French

Standard NF P 43-011

, to prevent heating water being

returned to the drinking water network

• an NF backflow preventer is fitted in the boiler's tap fit-

tings unit

• 

French Standard NF C 15-100

- Low voltage electrical

installations - Rules

PUBLIC BUILDINGS

STATUTORY REQUIREMENTS FOR INSTALLATION

Installation and maintenance of the equipment must be car-
ried out by a qualified professional in accordance with cur-
rent legislative texts and state of the art, including:

- fire safety and panic control regulations for public

buildings:

a) General requirements

for all equipment:
• GZ 

articles

combustible gas and liquefied gas petroleum installations

• CH 

articles

heating, ventilation, refrigeration, air conditioning, steam
and domestic hot water production

b) Special requirements for each type of building with

public access (hospitals, shops, etc.)

Recommendation:

if the area is exposed to the risk of lightning (isolated ins-
tallation at the end of an electricity line, etc.) install a light-
ning conductor

Our warranty is subject to this requirement.

4.2 BOILER LOCATION

- the centre line of the external flue duct must be placed at a

distance of at least 0.40 m from any opening window and
a distance of at least 0.60 m from any ventilation hole
(depending on the type of outlet chosen, refer to the flue
kit instructions)

- if the boiler is installed in a bathroom, comply with the spe-

cial safety regulations in 

French standard NF C 15-100

(section 7)

- never install the boiler above hot-plates or ovens or in

general over any equipment producing greasy vapours
which could make the boiler dirty and affect its operation

- prepare a wall and mountings able to support the weight of

the boiler (weight: approx. 35 kg)

- take precautions to reduce noise

4.3  DESIGNING AND CARRYING OUT THE INSTALLA-

TION

Domestic hot water circuit 

(system plus)

- Avoid excessive loss of charge in preheating circuit

- if the water hardness is more than TH 25, install a water

softener

- if a non-return valve is present, a device allowing for

expansion is required (available as an option)

See domestic hot water technical directive (DTU)

Central heating circuit 

Circulation flow rate:

- when working out the measurements, be careful to main-

tain a minimum flow rate of 300 I/h with the thermostats
closed

Precautions against corrosion

Operating faults due to corrosion are likely to occur if the
system is built with components made of different materials.

To prevent such problems it is advisable to use a corrosion
inhibitor.

Take every precaution to prevent the treated water from
becoming corrosive.

Old installation: 

- fit a sediment trap to the lowest point on the return and

treat the system correctly

Recommendation:

- fit bleed valves on all radiators and to high points of the

installation; also fit drain cocks to low points

4. Installation requirements

Summary of Contents for Mira system FF

Page 1: ...C COMBINATION BOILER Heating only system Heating sanitary hot water together system plus Fanned Flue System Installation and Operating Manual GB TEMP MODE MAN AUTO THERMOREGULATION C O M PAT I B L E...

Page 2: ...chnical specifications 20 Page 1 description 3 2 dimensions 4 3 water specifications 4 4 installation requirements 5 5 air intake and burnt gas outlet connections 6 6 fitting the boiler 8 7 electrical...

Page 3: ...t thermistor 11 main heat exchanger outlet thermistor 12 electronic control unit 14 flue gas pressure control switch 15 ignitor 16 central heating pressure relief valve 19 heating circuit pressure gau...

Page 4: ...s the difference in metres between the highest point of the installation and the expansion vessel axis The minimum cold filling pressure of the installation is 0 7 bar recommended pressure between 1 2...

Page 5: ...for each type of building with public access hospitals shops etc Recommendation if the area is exposed to the risk of lightning isolated ins tallation at the end of an electricity line etc install a...

Page 6: ...t have leaks 5 2 TWIN FLOW FLUE TYPE C12 C32 C42 C52 C82 xy There is also the possibility of using an exhaust gas duct with separate tubes by using an adaptor on the outlet header and by inserting the...

Page 7: ...to be included in the calculation of developed length 3 The exhaust gas duct should jut above the roof by at least 0 5 m 4 The intake and exhaust gas ducts in C52 cannot be installed on opposite walls...

Page 8: ...n hole 16 MUST be connected to a waste water pipe Fit the flue device according to the type of connection chosen referring to section 5 Cleaning the appliance Once the water has been connected it is e...

Page 9: ...able is damaged it should be replaced by the manufacturer the after sales service or a person with a similar status in order to avoid potential danger Room thermostat connection When it leaves the fac...

Page 10: ...enables operation in modulating heating mode or all or nothing mode B1 allows the duration of post circulation in heating mode to be adjusted B2 allows the domestic hot water time delay TIC to be adju...

Page 11: ...sec Tempo D bistat Sanitaire 0 sec C lectic OFF ON Anticycle 30 s Fonctionnement TOUT OU RIEN Consigne chauffage 40 C Consigne chauffage variable de 35 85 C Post circulation 30 s Post circulation 3 m...

Page 12: ...ive film on the casing offer the casing up fig 14 engage hooks N in notches R operation 1 fit the top of the panel in place close the panel mounting clamps fig 15 N B It is essential to refit the lock...

Page 13: ...the pressure to the value shown in the table nominal output table Adjusting the minimum output disconnect a variable solenoid valve power supply cable fig 18 turn screw 4 using a 5 mm open ended spann...

Page 14: ...xchanger outlet sensor open 12 Main exchanger outlet sensor short circuited 13 Main exchanger inlet sensor open 14 Main exchanger inlet sensor short circuited 15 External sensor open 16 External senso...

Page 15: ...15 By pass valve assembly direction 12 Particular characteristics...

Page 16: ...re adjustment knob 23 heating temperature and operating fault indicator 24 orange burner operating indicator light 25 reset push button reset and red locking indicator light Taps and valves fig 21 31...

Page 17: ...emperature in the heating circuit according to seasonal requirements Indicator 23 displays the temperature Turn knob 22 towards Max in cold weather towards Min in mild weather Furthermore if your home...

Page 18: ...o you by service providers for all boiler servicing Contact your gas fitter or our commercial services The manufacturer s warranty which covers manufacturing faults should not be confused with servici...

Page 19: ...hapter 8 Room thermostat switched off Set up the room thermostat Red indicator alight Wait for a few minutes Press on reset button 25 fig 20 the red led turn off and the boiler attempts to re light If...

Page 20: ...re 35 to 85 C 35 to 85 C Adjustable hot water temperature system plus 40 to 60 C 40 to 60 C Electric voltage 230 volt single phase 50 Hz 230 volt single phase 50 Hz Electrical power consumption 150 W...

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