DC 20-125
DC 33-160
Dual Fired Combi - Unique 2 in 1 heat exchanger eliminates the need for a Diverter valve and plate type heat exchanger.
You expect your boiler to provide enough heat water for both your kitchen and bathroom, as well as enough heat to make your home cosy and snug. Our DC Combi is designed to do just that. Whatever your exact heating and hot water requirements may be, one of our combies is sure to be a perfect match for you
Features
Technical Data
Connections
Touch Panel
Documentation
Features
| · Up to 96% AFUE with full ASME-rated vessel. |
| · Two independent copper coils embedded in a cast aluminium heat exchanger. |
| · Built-in boiler pump. |
| · PVC/CPVC/PPs approved. |
| · Low lead certified. |
| · Self-cleaning, self-draining vertical fin heat exchanger. |
· Built-in supply and return sensors control the heat exchanger temperature (versus water temperature), thus eliminating failures. |
| · Contractor friendly, fewer internal parts, easy to install, maintain and service. |
| · Outdoor reset technology increases efficiency by lowering the water temp automatically. |
| · Exceptional value and longevity. Over 2 million installed. |
| · Includes Air Vent, Outdoor Sensor & Relief Valve. |
| · 5 Year manufacturer’s parts warranty. |
| · 10 year limited heat exchanger warranty. |
Technical Data
| SPECIFICATION | DC 20-125 | DC 33-160 |
| CSA Input (Natural Gas or Propane) – MBH | 20 – 125 | 33 – 160 |
| CSA Input (Natural Gas or Propane) – KW | 5.6 – 36.6 | 9.7 – 46.9 |
| CSA Output – MBH | 18.6 – 110.8 | 30.4 – 140.0 |
| CSA Output – KW | 5.4 – 32.5 | 8.9 – 41.0 |
| DHW – CSA Input (Natural Gas or Propane) – MBH | 20 – 125 | 33 – 124 |
| DHW – CSA Input (Natural Gas or Propane) – KW | 95.6 – 36.3 | 9.7 – 36.3 |
| A.F.U.E | 95% | 94% |
| Min gas pressure (Nat. Gas or Propane) – inch w.c. | 5 | 5 |
| Max gas pressure (Nat. Gas or Propane) – inch w.c. | 14 | 14 |
| Power (120Vac/60Hz) – Watts @ full fire with internal pump | 130 | 164 |
| Weight (empty) – lbs/Kg | 105 / 48 | 105 / 48 |
| Pressure vessel water content – USG/Liters | 0.5/1.9 | 0.5/1.9 |
| Max boiler flow rate – USgpm | 11 | 11 |
| Min boiler flow rate – USgpm | 3 | 3 |
| Max operating pressure – Space Heating Coil – psig | 43.5 | 43.5 |
| Max operating pressure – Domestic Hot Water Coil – psig | 150 | 150 |
| 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) | 50/10 | 50/10 |
| Max water temperature – Space Heating (°F/°C) | 194/90 | 194/90 |
| Min water temperature – Domestic Hot Water (°F/°C) | 104/40 | 104/40 |
| Max water temperature – Domestic Hot Water (°F/°C) | 149/65 | 149/65 |
| Min flow rate to activate DHW heating – USgpm | 0.5 | 0.5 |
| Max flow rate DHW heating – USgpm | 4 | 4 |
| Max equivalent vent length 2″ (each side) | 35′ | 35′ |
| Max equivalent vent length 3″ (each side) | 120′ | 120′ |
| Domestic Hot Water delivery: @70°F/ 39°C temperature rise | 3.2 GPM | 3.2 GPM |
| EXHAUST PIPE SIZE | MAXIMUM EQUIVALENT VENT LENGTH |
| Schedule 40; CPVC or PPs | (each side) |
| 2” | 35’ |
| 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 |
| Flexible PPs | |
| 3” Flexible | 35 Actual feet |
Connections
| A | Exhaust Outlet | 3″ Schedule 40 |
| B | Combustion Air | 3″ 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 | 1/2″ Male NPT |
| H | Condensate Outlet | 3/4″ Hose |
| I | Knock-out (3) | 1/2″ |
| HEIGHT |
| DC 20-125 31.3″ [796] |
| DC 33-160 31.3″ [796 |
Touch Panel
| CONTROLLER AN INDICATOR BUTTONS | |||
| 1 | Power Indicator | A | Power – ON / OFF |
| 2 | Space Heating | B | Space Heating / DHW Toggle |
| 3 | Domestic Hot Water | C | Minus |
| 4 | Main Display | D | Plus |
| 5 | Fahrenheit and PSI | E | Fahrenheit/Celsius |
| 6 | Celsius and Bar | F | Domestic Hot Water Comfort / Eco |
| 7 | Comfort / ECO / OFF – Indicator | G | Service |
| 8 | Comfort / ECO / OFF – Indicator | H | Reset Button |
| 9 | Service Display | ||
| 10 | Flashes to indicate a fault | ||
Documentation
Download List of Manuals
| ↓ DC Series Installation & Operating Instructions Manual |
| ↓ DC Series User Manual |
| ↓ DC Series Controller Manual |
Download List of Literature
| ↓ DC Series Sales Brochure |
| ↓ DC Series Submittal Sheet |
