Unical KON R 18 Installation And Servicing Manual

13
Technical Features
ENGLISH
2.5 - GENERAL FEATURES
2.4 - OPERATING DATA ACCORDING TO UNI 10348
For the adjustment data: NOZZLES - PRESSURE - DIAGRAMS - FLOW RATES - CONSUMPTION refer to the par-
agraph ADAPTATION TO OTHER TYPES OF GAS.
KON R18/C18 R24/C24 R28/C28 R35/C35
Maximum heating thermal output (DHW) kW 18.0 (23.4) 23.4 (23.4) 28.0 (28.0) 33.0 (33.0)
Minimum heat output (propane) kW 3.0 (4.4) 3.0 (4.4) 4.4 (5.6) 4.4 (5.6)
Effective nominal output kW 17.4 22.6 27.2 32.0
Minimum effective output kW 2.9 2.9 4.3 4.3
Effective efciency at nominal load (100%) % 96.9 96.5 97.2 97.0
Effective efciency required (100%) % 95.5 95.7 95.9 96.0
Effective efciency at 30% load % 101.3 100.1 101.0 101.0
Effective efciency required (30%) % 92.7 93.1 93.3 93.5
Number of stars (according to 92/42 EEC) no.
Effective nominal output in condensation 50/30 kW 18.4 23.6 28.9 33.8
Minimum effective output in condensation 50/30 kW 3.2 3.2 4.7 4.7
Effective output with nominal load in cond. 50/30 % 102.3 100.9 103.1 102.3
Effective output with minimum load in cond. 50/30 % 107.0 107.2 106.2 106.2
Combustion efciencywithnominalload(100%) % 97.6 97.2 97.6 97.2
Combustion efciency with reduced load % 98.6 98.6 98.1 98.1
Heat loss at casing (min.-max.) % 2.0 - 0.74 2.0 - 0.7 1.47 - 0.43 1.47 - 0.2
(*) Flue gas temperature tf-ta (max.) °C 49 57.6 48 57
Flue gas mass ow rate (min.-max) g/s 1.3 - 7.9 1.3 - 10.3 2.0 - 12.5 2.0 - 14.7
Excess λ air % 20.6 20.6 23.0 23.0
CO
2
% 9.5 - 9.5 9.5 - 9.5 9.3 - 9.3 9.3 - 9.3
CO
at 0% of O
2
(min./max)
ppm 20 - 95 20 - 121 19 - 100 19 - 120
Maximum production of condensation kg/h 2.9 3.7 4.5 5.3
NOx(WeightedvalueaccordingtoEN297/A3orEN483) mg/kWh 35 39 39 43
NOx Class 5 5 5 5
Heat loss at chimneywithburneron(min.-max.) % 1.4 - 2.4 1.4 - 2.8 1.9 - 2.4 1.9 - 2.8
Heat loss at chimney with burner off % 0.60 0.46 0.41 0.34
Notes: (*) Room Temperature = 20°C Data detected with appliance running on Methane gas (G20)
KON
R18 C 18 R24 C 24 R28 C 28 R35 C35
Appliance category
II
2H3P
II
2H3P
II
2H3P
II
2H3P
Minimum heat. circuit output (∆t 35 °C) l/min
1.2 1.2 1.7 1.7
Minimum heating circuit pressure bar
0.5 0.5 0.5 0.5
Maximum heating circuit pressure bar
3 3 3 3
Primary circuit content l
2.2 2.2 2.8 2.8
Maximum operating temperature in heat. °C
85 85 85 85
Minimum operating temperature in heat. °C
30 30 30 30
Expansion vessel total capacity l
8 8 8 8
Expansion vessel pre-load bar
1 1 1 1
Maximum system capacity (maxtemp.calc.) l
184 184 184 184
Minimum domestic hot water circuit ow rate l/min.
- 2.0 - 2.0 - 2.0 - 2.0
Minimum domestic hot water circuit pressure bar
- 0.5 - 0.5 - 0.5 - 0.5
Maximum domestic hot water circuit pressure bar
- 6 - 6 - 6 - 6
Domestic hot water specic ow rate (∆t 30 °C) l/min.
- 11.2 - 11.2 - 13 - 16
Domestic hot water ow rate limiter l/min.
- 10 - 10 - 12 - 15
Production of D.H.W. in continuous operation with ∆t 45 K l/min.
- 7.34 - 7.34 - 8.6 - 10.1
Production of D.H.W. in continuous operation with ∆t 40 K l/min.
- 8.26 - 8.26 - 9.7 - 11.4
Production of D.H.W. in continuous operation with ∆t 35 K l/min.
- 9.44 - 9.44 - 11.1 - 13.0
Production of D.H.W. in continuous operation with ∆t 30 K l/min.
- 11.0 - 11.0 - 12.9 - 15.2
Production of D.H.W. in continuous operation with ∆t 25 K (*) l/min.
- 13.2 - 13.2 - 15.5 - 18.3
Temperature adjustable in domestic hot water mode °C
- 38-60 - 38-60 - 38-60 - 38-60
Voltage/Frequency electric power supply V-Hz
230/50 230/50 230/50 230/50
Fuse on the power supply A (F)
4 4 2 2
Maximum absorbed output W
132 132 132 132
Protection rating IP
X5D X5D X5D X5D
Net weight kg
32.5 34 32.5 34 35 36.5 35 36.5
Gross weight kg
35.5 37 35.5 37 38 39.5 38 39.5
(*) mixed
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Unical KON R 18 Specifications

General

Brand	Unical
Model	KON R 18
Category	Boiler
Language	English