Boiler Technical Data - Vortex Combi Boilers; Boiler Technical Information - Grant Combi 70 V3 User's Installation Manual

4 - BOILER TECHNICAL INFORMATION

4.2

Boiler technical data - Vortex Combi boilers

Model
Boiler water content
(including 32.5 litre primary store)
* Weight (dry)
Max. heat input (Kerosene)
Connections: Heating flow and return
Cold water mains inlet
Domestic hot water outlet
Pressure relief valve discharge
Condensate connection
Flue size (conventional)
Waterside resistance Flow/Return temp. diff. of 10°C
Waterside resistance Flow/Return temp. diff. of 20°C
Boiler thermostat range
Limit (safety) thermostat switch off temp.
Maximum heating system pressure (cold)
Minimum heating system pressure (cold)
Pressure relief valve
Expansion vessel (pre-charged at 1 bar)
Maximum heating system volume**
Maximum operating pressure
Minimum domestic hot water flow rate
Maximum domestic hot water temperature
Maximum mains water inlet pressure
Minimum recommended mains water inlet pressure
Max. hearth temperature
Electricity supply
Motor power
Starting current
Running current
Oil connection
Conventional flue
* Weight includes burner but excludes flue
** Based on expansion vessel charge and initial cold system pressure of 0.5 bar
litre
gal
kg
lb
kW
Btu/h
Combi V3, Combi Max and Vortex Combi models
Vortex Combi 26
48.5
10.7
188
415
26
88 700
22 mm copper pipe
15 mm copper pipe
15 mm copper pipe
15 mm copper pipe
22 mm plastic pipe
100 mm (4 in) diameter
28.5 mbar
10.0 mbar
65 to 80°C
111°C +0 -3°C
1.0 bar
0.5 bar
2.5 bar
12 litres
128 litres
2.5 bar
3.0 litres/min (0.66 gal/min)
65°C (factory set)
8.0 bar
2.5 bar
Less than 50°C
230/240 V ~ 50 Hz Fused at 5 Amp
90 W max.
2.60 Amp
0.85 Amp
¼" BSP Male (on end of flexible fuel line)
Minimum flue draught - 8.7 N/m² (0.035 in wg)
Maximum flue draught - 37 N/m² (0.15 in wg)
Vortex Combi 36
53.5
11.8
218
481
36
123 000
28 mm copper pipe
22 mm copper pipe
22 mm copper pipe
26.0 mbar
9.5 mbar
14 litres
148 litres
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