Piazzetta ME 90/44 D, Instructions For Installation, Use And Maintenance Manual, Page: 8 / 32

H07022210 - DT2000371 - 04
36
English
Check the load-bearing capacity of the fl oor by adding together: the weight of the protections (lining walls), insulating materials, surround (given in the
surround instruction booklet) and the fi replace (given in the paragraph “
TECHNICAL DATA
”).
If the fl oor has an unsuitable load-bearing capacity, take adequate countermeasures.
Check the heating capacity of the appliance by comparing the rated power given in the paragraph “
TECHNICAL DATA
” with the power required by the
environment to be heated.
The energy requirement may be calculated approximately by multiplying the square metres of area by the height of the ceiling; the result is then multiplied
by a coeffi cient, which depends on the degree of insulation of the building, that is, on internal and external factors of the dwelling:
a)
Internal factors:
type of window and door frames, thickness of the insulation and walls, type of building materials, presence of stairwells, walls with
extensive glazing, high ceilings, position of the rooms to be heated in relation to other adjacent heated or unheated rooms, …
b)
External factors:
geographical position, average outdoor temperature, exposure, wind speed, latitude, altitude, …
Example of approximate calculation of the energy requirement to heat a fi xed volume to 18/20° C:
The
coeffi cient
that is normally
used
is determined according to the real conditions as they occur case by case.
From 0.04 to 0.05 kW
per cubic metre in a
well insulated environment
From 0.05 to 0.06 kW per cubic metre in a poorly insulated environment
3 rooms measuring 20m
2
X (H ceiling) 2.7m = 162 m
3
(volume)
In an environment with a good degree of insulation, an average value (coeffi cient) of 0.045 kW may be taken
162 (volume) X 0.045 (kW) = 7.3 kW necessary (6300 kcal/h)
Conversion 1kW = 860 kcal/h
Consult a heating technician or engineer for a correct check and calculation of the requirement of the environments to be
heated (see “REFERENCE STANDARDS”).
Rated power being equal, products with the Multifuoco System
®
can evenly distribute heat throughout the rooms to be heated.
DT2010033-02
1.5 INSTALLATION ENVIROMENT
DT2010071-01
1.6 LOAD-BEARING CAPACITY OF THE FLOOR
DT2010130-01
1.7 HEATING CAPACITY
The appliance should be installed in a location which allows safe and convenient use as well as easy maintenance. If the product being installed requires
an electrical socket, the room must also be provided with an earthed power supply in accordance with current regulations. The room where the appliance
is to be installed must comply with the following requirements.
It can not be used as a garage, store for combustible material or for activities with a risk of fi re.
It can not be in a vacuum in relation to the outside environment due to the effect of contrary draught caused by the presence in the
room where the fi replace is installed of another appliance or an extractor device.
Do not use two stoves, a fi replace and a stove, a fi replace and a wood-fi red cooking range, etc. in the same environment, since the
draught of one could affect the draught of the other.
- Devices suitable for cooking food with relative hoods without an extractor fan may only be used in kitchens.
- Gas appliances of type C are allowed (refer to current legislation and regulations in the place of installation)
Gas appliances of type B are not allowed (refer to current legislation and regulations in the place of installation).
The fi replace must not be used simultaneously with collective type ventilation ducts with or without extractor fan, other devices
or other appliances such as: forced ventilation systems or other heating systems using ventilation to change the air. Such systems
could cause a vacuum in the environment of installation even if installed in adjoining or communicating rooms.
The fi replace must not be used: in stairwells except in buildings with no more than two apartments; in corridors for common use; in
bedrooms; in bathrooms or shower-rooms.