Table 2-2:Technical data Boilers - GRANT VORTEX BOILERHOUSE COMBI
Data Units
VORTEX BOILERHOUSE COMBI
18KW 24KW 32KW
Heating body volume litre 13 13 21
Boiler packed complete kg 121.250 121.250 135.140
Boiler & Burner fl oor weight kg 111.95 111.95 125.845
Dry weight boiler only kg 102.83 102.83 116.73
Maximum heating power kW 18 24 32
Heating flow connection 22mm 22mm 28mm
Heating return connection 22mm 22mm 28mm
Minimum fl ow (ΔT=10°C) l/h l/h 1780 2200 2280
Minimum fl ow (ΔT=20°C) l/h l/h 890 1100 1490
Condensate outlet connection 22 mm (connect only with pvc pipes) (a neutralizer is recommended)
Flue outlet diameter 18 & 24 kw =80mm 32kw =100mm
Waterside resistance ΔT=10°C mbar 28.5
Waterside resistance ΔT=20°C mbar 10.0
Maximum static height m 20
Minimum static height for pump operation m 1
Boiler thermostat range °C 55 à 75
T ° limit before safety thermostat cut-off °C 110 ± 3
Limit T ° of smoke before switching off the smoke safety
thermostat (for plastic smoke)
°C 90°C
Boiler base temperature °C less than 50
Power supply 230/240 V ~ 50 Hz protected at 5 Amp
Engine power watts
Oil connection ¼” BSP Male delivered with 1/4 1/8 reduced (on flexible oil outlet)
Chimney draft (depression pipe) N/m² Minimum 8.7 - Maximum 37
Maximum operating pressure - closed vessel bar 2
Maximum operating pressure - open vessel bar 3
Type boiler operation ON / OFF ON ELECTRICAL BOX (EXTERNAL TO THE BOILER)
Technical data
1. The data in the table are given as an indication likely to be adjusted according to the constraints of the site
2. Household fuel oil, bio fuel oil (<= 10%) and fuel oil with a low sulfur rate can be used
3. The smoke temperatures in the table are given at +/- 10%
4. When commissioning the air shutter must be adjusted to obtain the appropriate CO2 rate
5. In red, the burner is factory preset at powers 18kw, 24kw, 32kw.
6. The measuring point on the door can only be used for CO2 measurement and the smoke opacity test, but not for measuring the effi ciency or temperature
of the smoke
7. The installer must modify the data on the burner label if he changes the capacity.
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