SFC 125-1
SFC 199-1
Simple - Reliable - Efficient
A dual fired combi the SFC provides not only high-efficiency space heating, but unrivaled domestic hot water efficiency too. We call this ‘Double HE’. The secret lies in our patented two-in-one heat exchanger that ensures optimal heat transfer and minimal heat loss.
Flue gases are condensed with both space heating and domestic hot water production ensuring heat extraction to the fullest extent possible.
The SFC assures you unrivaled high-efficiency and economical operation year in, year out.
Features
Technical Data
Connections
Touch Panel
Documentation
Documentation (Fr)
Features
| SIMPLE |
| Mount > Connect > Plug In > Enjoy endless heat and hot water |
| 2 independent copper waterways embedded in a cast aluminum block |
| A total of 5 moving parts -(Fan, Pump, Bypass Valve, Gas Valve, and Damper) |
| Illuminated touchscreen control display panel |
| Factory installed domestic water strainer saves installation time |
| 2” venting up to 65 ft |
| Standard pipe size connections |
| Extended pipe fittings |
| RELIABLE |
| 30-year track record, 2 million installations worldwide |
| Innovative state of the art electronic control |
| Compatible with standard Propylene Glycol |
| Built-in bypass valve to prevent temperature fluctuations (SFC 199-1) |
| No need for a 3-way valve or secondary DHW plate heat exchanger |
| Will accept a 0-10 VDC signal. |
| EFFICIENT |
| Up to 96% AFUE with full ASME-rated heat exchanger |
| Wireless cascade up to 8 units (SFC 199-1). Multiple domestic and space heating cascade configurations available. |
| Packaged with a high efficiency variable speed pump (ECM) |
| Outdoor reset technology increases efficiency by lowering the water temperature automatically |
| Advanced modulating temperature control |
Technical Data
| SPECIFICATIONS | SFC 125-1 | SFC 199-1 |
| CSA Input (Natural Gas or Propane) – MBH | 16.5-99 | 28.5-125 |
| CSA Input (Natural Gas or Propane) – KW | 4.8-29 | 8.4-36.6 |
| CSA Output – MBH | 15.8-89 | 27.1-111 |
| CSA Output – KW | 4.6-26.1 | 7.9-32.5 |
| DHW – CSA Input (Natural Gas or Propane) – MBH | 16.5-125 | 28.5-199 |
| DHW – CSA Input (Natural Gas or Propane) – KW | 4.8-36.6 | 8.4-58.3 |
| A.F.U.E. | 95% | 95% |
| Min. Gas Pressure (Nat. Gas or Propane) – Inch W.C. | 4 | 4 |
| Max. Gas Pressure (Nat. Gas or Propane) – Inch W.C. | 14 | 14 |
| Power (120Vac/60Hz) – Watts at Full Fire w/ Internal Pump | 120 | 120 |
| Weight (empty) – lbs/Kg | 85/39 | 84/38 |
| Pressure Vessel Water Content – USG/Liters | 0.5/1.9 | 0.19/0.72 |
| Max. Boiler Flow Rate – GPM/LPM | 10/37.9 | 12/45.4 |
| Min. Boiler Flow Rate – GPM/LPM | 2/7.6 | 2/7.6 |
| Max. Operating Pressure – Space Heating Coil – psig | 43.5 | 43.5 |
| Max. Operating Pressure – Domestic Hot Water Coil – psig | 150 | 150 |
| Min. Water Pressure – psig | 8 | 8 |
| Approved Installation Altitude – ASL | 10,000 ft | 10,000 ft |
| Ambient Temperature – Low (°F/°C) | 32/0 | 32/0 |
| Ambient Temperature – High (°F/°C) | 122/50 | 122/50 |
| Max. Relative Humidity (Non-Condensing) | 90% | 90% |
| Min. Water Temperature – Space Heating (°F/°C) | 51/10 | 51/10 |
| Max. Water Temperature – Space Heating (°F/°C) | 194/90 | 194/90 |
| Min. Water Temperature – Domestic Hot Water (°F/°C) | 105/40 | 105/40 |
| Max. Water Temperature – Domestic Hot Water (°F/°C) | 149/65 | 149/65 |
| Min. Flow Rate to Activate DHW Heating – GPM/LPM | 0.5/1.9 | 0.5/1.9 |
| Max. Flow Rate DHW Heating – GPM/LPM | 4/15.1 | 7/26.5 |
| Max. Equivalent Vent Length 2” (each side) | 65′ | 65′ |
| Max. Equivalent Vent Length 3” (each side) | 120′ | 120′ |
| DHW Delivery: At 67°F/37.2°C Temperature Rise – GPM/LPM | 3.2/12.1 | 5/18.9 |
| VENTING | MAXIMUM EQUIVALENT LENGTH |
| Schedule 40 PVC, CPVC or PPs | (each side) |
| 2” | 65’ |
| 3” | 120’ |
| 2″ or 3″ 90′ Long Sweep Vent Elbow | Allow 5 equivalent feet |
| 2″ or 3″ 90′ Short Sweep Vent Elbow | Allow 8 equivalent feet |
| 2″ or 3″ 45′ Vent Elbow | Allow 3 equivalent feet |
| PPs | |
| PPs 87-90′ Elbow | Allow 8 equivalent feet |
| Flex PPS | |
| 3″ PPs Flex | (Max. 35) actual feet times 1.4 |
Connections
| Connection Dimensions | SFC | |
| A | Exhaust Outlet | 2″ Schedule 40 |
| B | Combustion Air | 2″ Schedule 40 |
| C | Cold Domestic Water Connection | 3/4″ Male NPT |
| D | Hot Domestic Water Connection | 3/4″ Male NPT |
| E | Heating Water Inlet (Return) | 1″ Male NPT |
| F | Heating Water Outlet (Supply) | 1″ Male NPT |
| G | Gas Inlet | 3/4″ Male NPT |
| H | Condensate Outlet | 3/4″ Hose |
| I | Control Wiring Passage | 7/16” Rubber |
Touch Panel
The SFC controller functions as an interactive touch-sensitive panel with buttons that light up, showing indicators such as numbers, icons, or letters. Some of these lit indicators signify boiler operational status. Other indicators enable you to program the boiler.
| A | Numerical Display | Main Display |
| B | Plus & Minus | Temperature Adjustment |
| C | Flame | Burner ON Indicator |
| D | Dot | Power ON Indicator |
| E | Faucet | DHW Indicator |
| F | Radiator | Heating Indicator |
| G | Wrench | Service / Reset |
| H | Return Arrow | Enter / Save |
| I | Numerical Display | Service |
Documentation
Manuals
| ↓ SFC User Manual |
| ↓ SFC Controller Manual |
| ↓ SFC Engineering Submittal |
Literature
| ↓ SFC Sales Brochure |
| ↓SFC-1 Sales Specification Sheet |
Other Downloads
| ↓ SFC Junction Box |
| ↓ |
Documentation (Fr)
Manuals
| ↓ SFC-1 Instructions d’ Installation et Mode d’Emploi |
| ↓ SFC-1 Manuel d’Utilisation |
| ↓ SFC-1 Unité de commande de chaudière à écran tactile |
Literature
| ↓ SFC Brochure – Bientôt disponible |
| ↓ SFC Sales Specification Sheet – Bientôt disponible |
