Technical Information - Grant Combi 90 V3 User, Installation & Servicing Instructions

4.1
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Boiler technical data - Outdoor Combi 90 V3 and Outdoor Combi Max boilers
Boiler water content
Model
* Weight (dry)
Max. heat input (Kerosene)
Connections:
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
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
* Weight includes burner but excludes flue
** 22 mm hot water pipe can be connected to the Combi Max if required.
*** Based on expansion vessel charge and initial cold system pressure of 0.5 bar.
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4 – BOILER TECHNICAL INFORMATION
litre
gal
kg
lb
kW
Btu/h
Heating flow and return
Cold water mains inlet
Domestic hot water outlet
Pressure relief valve discharge
Outdoor Combi 90 V3, Combi Max and Condensing Combi
40
Combi 90 V3
8.8
158
348
27.6
94 200
22 mm copper pipe
15 mm copper pipe
15 mm copper pipe **
15 mm copper pipe
26.5 mbar
9.5 mbar
75˚ to 85˚C
111˚C ± 3˚C
1.0 bar
0.5 bar
2.5 bar
12 litres (pre-charged at 1.0 bar)
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
1/4" BSP Male (on end of flexible fuel line)
40
Combi Max
8.8
159
350
36.8
125 500