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2.1 BOILER TECHNICAL DATA

Table 2-1: Boiler technical data

Units

Outdoor Module External

15/21 15/26 26/36 36/46 46/58 58/70

Water content

litre 16.5 19 21 21 50 50

gal 3.6 4.2 4.7 4.7 11 11

Weight (dry)

kg 109 143 162 162 274 288

lb 240 315 357 357 604 635

Maximum heat output (Kerosene)

kW 21 26 36 46 58 70

Btu/h 71,700 88,700 122,800 157,000 197,900 238,800

Minimum ow rate (∆T=10°C) l/h 1,800 2,200 3,000 4,000 5,200 6.000

Minimum ow rate (∆T=20°C) l/h 900 1,100 1,500 2,000 2,600 3,000

Condensate connection 22 mm (only connect plastic pipe)

Flue diameter (conventional) 100 mm 125 mm*

Waterside resistance ∆T=10°C mbar 28.5 26.0

Waterside resistance ∆T=20°C mbar 10.0 9.5

Maximum static head m 28

Minimum circulating head m 1

Boiler thermostat range °C 50 to 75

Limit (safety) thermostat shut o󰀨

temperature

°C 110 ± 3

Maximum hearth temperature °C Less than 50

Electricity supply ~230 1ph 50Hz 5A fused

Burner motor power Watts 90 150

Absorbed motor power kW 0.15

Starting current Amps 4.2 6.4

Running current Amps 0.85 1.2

Oil connection ¼ʺ BSP male (on end of exible fuel hose)

Conventional ue draught

mbar Minimum: 0.087 - Maximum: 0.37

in wg Minimum: 0.035 - Maximum: 0.15

Maximum operating pressure -

sealed/open system

bar 2.0

Maximum operating pressure -

pressure relief valve

bar 3.0

Boiler type ON/OFF

* 125 mm diameter required for exible ue liner (Orange system). For rigid ue system, e.g. Green system, 100 mm diameter ue required. Refer to Section 9

(Flue System and Air Supply) for further details.

2.2 SEALED SYSTEM DATA

Table 2-2: Sealed System Data

15/21, 15/26, 26/36 and 36/46

Heating system pressure (cold) Maximum 1.0 bar | Minimum 0.5 bar

Operating pressure of pressure relief valve 3.0 bar

Expansion vessel size (pre-charged at 1 bar) 10 litres (15/21) | 12 litres (15/26) | 16 litres (26/36 and 36/46)

Maximum heating system volume (including boiler)* 104 litres (15/21) | 125 litres (15/26) | 171 litres (26/36 & 36/46)**

Cold water mains connection 15 mm copper pipe

Pressure relief valve discharge connection 15 mm copper pipe

* Based on vessel charge of 0.3 bar and system cold ll pressure of 0.5 bar. These values are the remaining system volume available after deducting the boiler

water content.

** Approximately

Section 2: Technical DataPage 6

2 TECHNICAL DATA