Combi Boiler

Model

SL28-B3

SL28-B5

Unit

Fuel

NG/LPG/Town Gas

C.H. system

Rated input capacity (heat load)

30

KW

Rated output capacity

28

KW

Min.C.H. heat input

6.2

KW

Min.C.H. heat output

6.5

KW

Min.DHW heat input

6.2

KW

Min.DHW heat output

6

KW

Heat efficiency (100%/30% heat load)

93/104.6

%

C.H. system working pressure

0.05~0.3

Mpa

Max. C.H. flow temperature

90

ºC

Adjustable C.H. flow temperature range(± 3ºC)

40~85(floor heating 35~60)

ºC

Rated power

141

W

Protection class

IPX4D

Expansion Vessel Volume

8

L

Expansion Vessel Pre-charge Pressure

0.1

Mpa

Heating area( for reference only)

80~280

sq.M

Power supply

~220V/50Hz

Fuel(NG 12T) consumption (for reference only)

0.6~3.1

m/h

Fuel(LPG 20Y) consumption (for reference only)

0.8~2.6

kg/h

Weight(boiler only)

55

kg

DHW system

Max working pressure

0.6

Mpa

Min working pressure

0.03

Mpa

DHW flow @△T=25K

16.6

kg/min

Adjustable DHW flow temperature range

35~60

ºC

Min DHW flow rate

2.5

kg/min

flow rate at constant temp.

>6

kg/min

Limited flow

12

kg/min

Rated Fuel Gas Pressure

NG rated pressure

2000

Pa

LPG rated pressure

2800

Pa