Gas Combination Boiler
Item No.: | SF C1 Series |

Available in 18, 24 KW
Features & Benifits:
*Natural Draught Type
*Easy operation.
*LED 2 digits display of temperature and operation status
*Floor heating mode with 60℃ temp limit protection
*Energy saving and comfort modes available for different needs.
*18 protective functions
*Magnetic filtering devices ensure normal operation in bad quality area.
Technical Data
Model | SF18-C1, SFP18-C1 | SF24-C1, SFP24-C1 | Unit |
Gas Type | NG, LPG, Town Gas |
| |
Dimension(L*H*W) | 725X403X325 | 725X403X325 | mm |
C.H. System | |||
Nominal heat input | 20 | 26.3 | KW |
Nominal heat output | 18 | 23.7 | KW |
Heat Efficiency | 90.1 | 90.1 | % |
CH System Working Pressure | 0.05~0.3 | Mpa | |
Max. Heating Temperature | 90 | ℃ | |
Adjustable CH flow Temp.range | 40~85(Floor heating 35~60) | ℃ | |
Power | 220V/50Hz | 220V/50Hz |
|
Protection Class | IPX4D | IPX4D |
|
Expansion Vessel Volume | 8 | 8 | L |
Expansion Vessel Pre-charge Pressure | 0.1 | 0.1 | Mpa |
Heating Area(For reference only) | 60~150 | 60~220 | M2 |
Applicable Water Tap Number | 1 | 2 |
|
NWT(boiler only) | 36 | 38 | kgs |
DHW System | |||
Max. Working Pressure | 0.6 | Mpa | |
Min. Working Pressure | 0.03 | Mpa | |
Continuous DHW Production △T=25℃ | 10.3 | 13.6 | kg/min |
Adjustable DHW flow Temp.range (±3℃) | 35~60 | ℃ | |
Min DHW flow | 2.5 | kg/min | |
DHW limited flow rate | 7.3 | 10 | kg/min |
Gas Pressure | |||
Natural Gas | 2000 | 2000 | Pa |
LPG | 2800 | 2800 | Pa |
Connection | |||
CH water outlet | 3/4" |
| |
DHW inlet | 3/4" |
| |
DHW outlet | 1/2" |
| |
Cold water inlet | 1/2" |
| |
Gas inlet | 3/4" |
| |
Pump delivery height | 5 | m |