B
A
3
MODEL A B C D E F G
12/14 370 600 855 780 110 92 56
15/19 370 600 855 780 110 92 56
20/25 370 600 855 780 110 92 56
26/32 520 600 855 775 110 92 56
32/50 520 775 997 917 110 120 56
50/70 520 935 997 917 110 160 56
3. Technical Data
Fig. 1. Principal Dimensions (All Dimensions are millimeters)
FRONT VIEW
SIDE VIEW
E
F
G
C
D
Model
POWER SUPPLY
HEATING FLOW
HEATING RETURN
FUEL LINE
MINIMUM FLUE
REQUIREMENT
HEARTH TEMPERATURE
MAXIMUM STATIC HEAD
PRIMARY WATER CAPACITY
WEIGHT
BURNER
WATER SIDE RESISTANCE
10°C Difference
WATER SIDE RESISTANCE
20°C Difference
EXIT FLUE GAS
MASS FLOW
CONTROL THERMOSTAT
RANGE
CONTROL THERMOSTAT
DIFFERENTIAL
HIGH LIMIT THERMOSTAT
BREAK POINT
MANUAL RESET THERMOSTAT
BREAK POINT
Balanced Flue Kit Balanced Flue Kit Balanced Flue Kit Balanced Flue Kit
Section 7.3 Section 7.3 Section 7.3 Section 7.3
N/A N/A
12/14 15/19 20/25 26/32 32/50 50/70
SPECIFICATIONS
230/240V 50 Hz 230/240V 50 Hz 230/240V 50 Hz 230/240V 50 Hz 230/240V 50 Hz 230/240V 50 Hz
1 in. BSP 1 in. BSP 1 in. BSP 1
1
/4 in. BSP 1
1
/2 in. BSP 1
1
/2 in. BSP
1 in. BSP 1 in. BSP 1 in. BSP 1
1
/4 in. BSP 1
1
/2 in. BSP 1
1
/2 in. BSP
10mm 10mm 10mm 10mm 10mm 10mm
Compression Compression Compression Compression Compression Compression
100mm (4 in.) 100mm (4 in.) 100mm (4 in.) 125mm (5 in.) 125mm (5 in.) 150mm (6 in.)
Class 2 Class 2 Class 2 Class 2 Class 1 Class 1
Below 260°C Below 260°C Below 260°C Below 260°C
Below 100°C Below 100°C Below 100°C Below 100°C Below 100°C Below 100°C
30m (98 ft. ) 30m (98 ft. ) 30m (98 ft. ) 30m (98 ft. ) 30m (98 ft. ) 30m (98 ft. )
20 litres (4.4 gal.) 20 litres (4.4 gal.) 23.5 litres (5.2 gal.) 29.1 litres (6.4 gal.) 44.3 litres (9.8 gal.) 54 litres (11.9 gal.)
93 Kg (205 lbs) 96 Kg (212 lbs) 106 Kg (234 lbs) 138 Kg (306 lbs) 192Kg (421lbs) 244Kg (536lbs)
97 Kg (214 lbs) 100 Kg (220 lbs) 110 Kg (242 lbs) 142 Kg (313 lbs) N/A N/A
Electro Oil Electro Oil Electro Oil Electro Oil Electro Oil Electro Oil
Inter B9 A Inter B9 B Inter B11C Sterling 40 Sterling 50 B20B
7 mbar 8 mbar 18 mbar 35 mbar 66mbar 195mbar
3 mbar 6 mbar 12 mbar 19 mbar 7mbar 10mbar
28 kg/hr 35 kg/hr 46 kg/hr 57 kg/hr 89 kg/hr 125 kg/hr
55°C minimum cut in to 82°C maximum cut out
5°C
100 + 0/ – 6°C
110 + 0/ – 6°C
CF
RS
CF
RS