Sime MURELLE 20, User Instructions

Page: 6 / 12

2
Main burner nozzles Pilot injector Gas consumption (*)
BOILER MODEL Quantity Natural gas G30-G31 Natural gas G30-G31 Natural gas L.P.G. G30 L.P.G.G31
N° ø mm ø mm ø mm ø mm m
3
s/h kg/h kg/h
MURELLE 20 13 1,30 0,75 0,25 0,20 2,72 2,02 1,99
MURELLE 25 15 1,30 0,77 - - 3,23 2,41 2,37
MURELLE 20 BF 13 1,30 0,75 0,27 0,20 2,72 2,02 1,99
MURELLE 25 BF 15 1,30 0,77 - - 3,47 2,58 2,54
TABLE 3
Burner gas pressure Gas supply pressure
BOILER MODEL Natural gas L.P.G. (G30) L.PG. (G31) Natural gas L.P.G. (G30) L.P.G. (G31)
mbar mbar mbar mbar mbar mbar
MURELLE 20-20 BF 10 28 35 20 30 37
MURELLE 25-25 BF 11 28 35 20 30 37
TABLE 4
NOTE: The burner header gas pressure and inputs shown in the table refer to the boiler max. capacity. These values must be kept to
in the D.H.W. production.
(*) The gas consumptions refer to the calorific value at standard conditions at 15°C - 1013 mbar
Power Smokes Smokes D.H.W. D.H.W. flow rate Minimum D.H.W. pressure
BOILER MODEL consumption temperature flow Heat Output ∆t 30°C D.H.W. flow rate Min. Max.
°C gr/s kW
I/min I/min
bar bar
MURELLE 20 105 (150 vers. TX) 100 24.7 23.3 11.0 2 0.5 7
MURELLE 25 120 100 29.4 27.6 12.9 2 0.5 7
MURELLE 20 BF 150 136 17.2 23.3 11.0 2 0.5 7
MURELLE 25 BF 160 136 22.8 29.6 12.9 2 0.5 7
TABLE 2
1.4 TECHNICAL FEATURES
Heat Output Heat Input Electr. protection Maximum Expans. vessel Expans. vessel Weight
BOILER MODEL (adjustable) (adjustable) grade water head contents preloading
kW kW W bar l bar Kg
MURELLE 20
9.3 ÷ 23.3 10.8 ÷ 25.7 – 3 7 1 40
MURELLE 25
11.6 ÷ 27.6 13.5 ÷ 30.6 – 3 7 1 48
MURELLE 20 BF
9.3 ÷ 23.3 10.8 ÷ 25.7 IP 44 3 7 1 48
MURELLE 25 BF
15.1 ÷ 29.6 18.0 ÷ 32.8 IP 44 3 7 1 54
TABLE 1