Technical Data; Boiler Technical Data - Grant Vortex Series Installation And Servicing Instructions

2

TECHNICAL DATA

2.1

BOILER TECHNICAL DATA

Table 2-1: Boiler technical data
Water content
(including 32 litre primary store)
Weight (dry) *
Maximum heat output (Kerosene)
Heating system flow and return connections
Cold water mains inlet
Domestic hot water outlet
Minimum flow rate (∆T=10°C)
Minimum flow rate (∆T=20°C)
Pressure relief valve discharge
Maximum heating system pressure (cold)
Minimum heating system pressure (cold)
Expansion vessel volume (pre-charged at 1 bar)
Maximum heating system volume **
Minimum domestic hot water flow rate
Maximum domestic hot water temperature
Maximum mains water inlet pressure
Minimum recommended mains water inlet
pressure
Condensate connection
Flue diameter (conventional)
Waterside resistance ∆T=10°C
Waterside resistance ∆T=20°C
Maximum static head
Minimum circulating head
Boiler thermostat range
Limit (safety) thermostat shut off temperature
Maximum hearth temperature
Electricity supply
Burner motor power
Absorbed motor power
Starting current
Running current
Oil connection
Conventional flue draught
Maximum operating pressure
Maximum operating pressure - pressure relief
valve
Boiler type
* Weight includes burner (and expansion vessel) but excludes flue
** Based on expansion vessel charge and initial cold system pressure of 0.5 bar
Page 6
Units
Combi 21
litre 48.0
gal 10.6
kg 147
lb 325
kW 21
Btu/h 71,600
mm 22
mm 15
mm 15
l/h 1,800
l/h 900
mm
bar
bar
litres
litres
°C
bar
bar
mm
mbar
mbar
m
m
°C
°C
°C
Watts
kW
Amps 4.2
Amps
mbar
in wg
bar
bar
Outdoor
Combi 26
48.5
10.7
188
415
26
88,700
22
15
15
2,200
1,100
15
1.0
0.5
24
255
3.0 litres/min (0.66 gal/min)
65 (factory set)
8.0
2.5
22 mm (only connect plastic pipe)
100
28.5
10.0
28
1
65 to 75
110 ± 3
Less than 50
~230 1ph 50Hz 5A fused
90
0.15
2.6
0.85
¼ʺ BSP male (on end of flexible fuel hose)
Minimum: 0.087 - Maximum: 0.37
Minimum: 0.035 - Maximum: 0.15
2.0
2.5
ON/OFF
Section 2: Technical Data
Combi 36
53.5
11.8
218
481
36
122,800
28
22
22
3,000
1,500
26.0
9.5
2.6