Riello Condexa Pro2 150 Evo IN A, Installation Instructions Manual

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34
WATER IN CENTRAL HEATING SYSTEMS
Detail 150 225 300 U.M.
Maximum rated heat input 166 249 332 kW
Minimum rated heat input 16,6 16,6 17 kW
Domestic hot water maximum rated thermal input (80-60) - - - kW
Domestic hot water minimum rated thermal input (80-60) - - - kW
PARAMETER
Seasonal heating energy efficiency class
- - - -
Water heating energy efficiency class - - - -
Rated input Prated 146,6 219,9 146,6 kW
Seasonal energy efficiency in central heating mode
ηs
- - - %
USEFUL HEAT OUTPUT
at rated thermal input and at high temperature rating
P4 146,6 219,9 146,6 kW
at 30% of rated thermal input and at low temperature rating P1 54,1 81,2 108,2 kW
EFFICIENCY
at rated thermal input and at high temperature rating
η4
88,3 88,3 88,3 %
at 30% of rated thermal input and at low temperature rating
η1
97,9 97,9 97,9 %
ADDITIONAL ENERGY CONSUMPTION
at full load
El max 200 300 400 W
at partial load El min 60 90 120 W
in stand-by PSB 4 6 8 W
OTHER PARAMETERS
Heat loss in standby mode
Pstby 1466 2199 2932 W
Energy consumption of the pilot light Ping - - - W
Annual energy consumption Q HE - - - GJ
Level of inner sound power LWA - - - dB
Emissions of nitrogen oxides NOx - - - mg/kWh
FOR COMBINATION HEATING APPLIANCES
Declared load profile
- - - -
Energy efficiency in DHW mode
ηWH
- - - %
Daily electrical energy consumption Qelec - - - kWh
Daily fuel consumption Qfuel - - - kWh
Annual electrical energy consumption AEC - - - kWh
Annual fuel consumption AFC - - - GJ
14 WATER IN CENTRAL HEATING SYSTEMS
INTRODUCTION
Water used in central heating systems MUST be suitably treated
to ensure the correct functioning of those systems and to guar-
antee an extended working life for boilers and all other system
components. This applies not only to existing systems but to
newly installed systems too.
Sludge, lime-scale and pollutants present in the water can cause
permanent damage to the heating unit, also within a short time
and regardless of the quality standards of the materials used.
Contact the Technical Assistance Service for any further informa-
tion on type and use of additives.
9
Always conform to the standards and legislation applicable
in the country of installation.
WATER IN CENTRAL HEATING SYSTEMS.
INSTRUCTIONS FOR THE DESIGN, INSTALLATION AND MANAGEMENT
OF CENTRAL HEATING SYSTEMS.
1. Chemical and physical characteristics of water
The chemical and physical characteristics of water used in cen-
tral heating systems must conform to the requirements of EN
14868 standard and to the following tables:
STEEL BOILERS
with furnace power < 150 kW
Initial filling
water
Regular service
water (*)
ph 6-8 7,5-9,5
Hardness °fH < 10° < 10°
Electrical
conductivity
µs/cm < 150
Chlorides mg/l < 20