17.4. Package information card stating the central heating energy efficiency
of the package
17.4.1. Package Information - Combi Boiler
Seasonal Space Heating Energy Efficiency of the Combi Boiler (Table 7)
"I": The value of the seasonal heating efficiency of the primary central heater, expressed in %.
Temperature Controller
(Room Thermostat-Outdoor Air Sensor)
From the temperature controller
information sheet
Additional Combi
From the combi boiler information form
Solar Contribution
From the solar energy device data sheet
Collector size (m²)
( "III" x
''III'': Value of mathematical expression: 294/(11.Prated), where ''Prated'' refers to the preferred heater.
'IV': Value of mathematical expression: 115/(11.Prated), where ''Prated'' refers to the preferred heater.
(1) If tank rating is above A, use 0.95.
Additional Heat Pump Additive
From the heat pump data sheet
''II': The preferred factor for weighting the heat
output of a package's optional and additional heaters
is given in table 7.
Solar Additive and Additional Heat Pump
Choose the smaller value
Seasonal Space Heating Energy Efficiency of the Package
Seasonal Space Heating Energy Efficiency Class of the Package
Are the Boiler and Additional Heat Pump Mounted with 35°C Low Temperature Radiating Devices?
From the Heat Pump Data Sheet
The energy efficiency of the products in the package provided for this data sheet (fiche) may not represent the actual
energy efficiency when installed in a building, as the efficiency is affected by other factors such as heat loss in the
distribution system and the sizing of the products depending on the size and characteristics of the building.
Class I = 1%, Class II = 2%, Class III = 1.5%,
Class IV = 2%, Class V = 3%, Class VI = 4%,
Class VII = 3.5%, Class VIII = 5%
Seasonal space heating energy efficiency in %
Tank Volume (m
3
)
+ "IV" x
) x 0,9 x (
7
+ ( 50 x "II" ) =
(
-
A*=0,95, A = 0,91,
Collector
B=0,86, C = 0,83,
Efficiency
(%)
/ 100 x
Seasonal Space Heating Energy Efficiency (in %)
(
4
0,5 x
or 0,5 x
%
33
1
"I"
2
+
3
"I") x 0,1
= ±
Tank Class
D - G = 0,81
4
=
+
5
+
- "I" ) x "II" =
6
5
-
=
7
%
%
%
%
%
%
%
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