Dorchester DR-FC Evo condensing water heater

Fully automatic, condensing direct fired water heater for domestic hot water.
7 models available with continuous outputs (@44°C ∆T) of 600, 630, 970, 1200, 1700, 2000 & 2400 l/h.

Product information

Power outputs 30-119kW and storage capacities of 227-504 litres.
Safe and clean domestic hot water generation.
Reduces energy use and running costs by maximising condensing water heater performance.
Meets the strict standards for efficiencies and NOx emissions in new buildings.
Ultra-quiet operation means it can be installed close to point of use without disturbance to occupants.
Closely matches hot water demand, reducing wastage.
Down firing pre-mix modulating burner reduces the risk of scale build up impacting on the heat transfer.
Large range of time and temperature control features built in as standard.
Electronic Anode fitted as standard.
Natural gas and lpg water heater options.
Easy access for service and maintenance.
Full project assistance available from our dedicated hot water expert to help with hot water sizing and selection of equipment to match the application.
Extensive back up and support from our team of experienced engineers across the UK.
Long term commitment to spare parts.
Water heater BIM objects available to assist in project design and management
Available for next day delivery (dependent on stock availability, charges apply, order cut-off 12pm).

New build projects.
Large commercial and public buildings including schools, hospitals and hotels.
Locations with substantial and continuous hot water demands including hospitals, hotels and sports facilities.
To see where Dorchester condensing water heaters have been used, visit the case study section of our website.

Unvented water supply kit - essential for any unvented application and includes an expansion vessel sized for the water heater and local pipework only.
Top to bottom pump recirculation pump kit to prevent stratification and protect against legionella within the water heater.
Remote monitoring unit.
Room Sealed Flue Systems:
- Concentric flue systems type C13–Horizontal termination.
- Concentric flue systems type C33–Vertical termination.
- Twin duct flue systems type C53–Vertical flue termination with Horizontal air inlet.
Conventional Open Flue Systems:
- Open flue systems type B23–Vertical termination.
Choose from a wide range of service contracts to help maintain optimum performance.
Ensure your new Hamworthy products are set to our recommendations and benefit from improved warranty terms with a commissioning package.

Energy

	Units	DR-FC Evo 25	DR-FC Evo 30	DR-FC Evo 45	DR-FC Evo 60	DR-FC Evo 80	DR-FC Evo 95	DR-FC Evo 120
Building Regulations thermal efficiency gross	%	96	98	96	95	97	95	95
ErP efficiency rating (modules ≤ 70 kW only)	-	A	A	A	A	N/A	N/A	N/A
Heating-up time, ΔT = 44°C	min.	23	37	24	20	19	16	13
Heating-up time, ΔT = 50°C	min.	26	42	27	23	21	18	15
Heating-up time, ΔT = 55°C	min.	29	46	30	25	23	20	16
Standby losses	kW/24h	4.2	4.7	4.7	4.7	6.7	6.7	6.7

Water

	Units	DR-FC Evo 25	DR-FC Evo 30	DR-FC Evo 45	DR-FC Evo 60	DR-FC Evo 80	DR-FC Evo 95	DR-FC Evo 120
Continuous output with 44°C ΔT	l/h	600	630	790	1200	1700	2000	2400
1st hour output with 44°C ΔT	l	730	870	1300	1500	1900	2200	2600
Continuous output with 50°C ΔT	l/h	530	560	850	1100	1500	1700	2100
1st hour output with 50°C ΔT	l	630	730	1100	1300	1700	1900	2300
Continuous output with 55°C ΔT	l/h	480	510	780	930	1300	1600	1900
1st hour output with 55°C ΔT	l	560	640	930	1100	1500	1700	2000
Storage capacity	litres	227	386	386	386	504	504	504
Maximum operating water pressure (open vented)	bar	8	8	8	8	8	8	8
Maximum operating water pressure (unvented)	bar	5.3	5.3	5.3	5.3	5.3	5.3	5.3
Expansion relief valve setting (unvented kit)	bar	6	6	6	6	6	6	6
ErP load profile	-	XXL	XXL	XXL	XXL	3XL	3XL	3XL

Nat Gas

	Units	DR-FC Evo 25	DR-FC Evo 30	DR-FC Evo 45	DR-FC Evo 60	DR-FC Evo 80	DR-FC Evo 95	DR-FC Evo 120
Input, gross – maximum	kW	31.6	32.6	51.2	62.1	85	103.4	126.3
Output – maximum	kW	30.5	32	49.3	59.3	82.6	98.7	119.4
Gas inlet pressure – nominal	mbar	20	20	20	20	20	20	20
Gas flow rate – maximum @1013.25 mbar and 15°C	m3/h	3.1	3.2	5	6	8.3	10.1	12.3

LPG

	Units	DR-FC Evo 25	DR-FC Evo 30	DR-FC Evo 45	DR-FC Evo 60	DR-FC Evo 80	DR-FC Evo 95	DR-FC Evo 120
Input, gross – maximum	kW	31	32	50.1	60.8	83.2	101.2	123.6
Output – maximum	kW	30.5	32	49.3	59.3	82.6	98.7	119.4
Gas inlet pressure – nominal	mbar	37	37	37	37	37	37	37
Gas flow rate – maximum@1013.25 mbar and 15°C	kg/h	2.3	2.3	3.7	4.4	6.1	7.4	9

Flue

	Units	DR-FC Evo 25	DR-FC Evo 30	DR-FC Evo 45	DR-FC Evo 60	DR-FC Evo 80	DR-FC Evo 95	DR-FC Evo 120
Approximate flue gas volume @15°C, 9.8% CO2, N.T.P. (Nat. Gas - G20)	kg/h	51.7	53.5	84.6	103.7	141.9	172.9	213.3
Flue gas temperature – maximum	°C	45	50	60	65	50	55	60
NOx emission, dry air free,European Class 5. Maximum (at part load)	mg/kWh	24	32	36	37	34	36	37
Pressure at the flue outlet only (B23) with zero pressure at air inlet	Pa	52	62	133	173	88	126	180

Electrical

	Units	DR-FC Evo 25	DR-FC Evo 30	DR-FC Evo 45	DR-FC Evo 60	DR-FC Evo 80	DR-FC Evo 95	DR-FC Evo 120
Start current–maximum (maximum power)	A (W)	0.59 (135)	0.59 (135)	0.59 (135)	0.59 (135)	0.61 (140)	0.61 (140)	0.61 (140)
Run current–maximum (maximum power)	A (W)	0.2 (45)	0.2 (45)	0.32 (75)	0.5 (115)	0.41 (95)	0.63 (145)	1.05 (240)
Electrical supply	Vac	230 V 1 PH 50 Hz	230 V 1 PH 50 Hz	230 V 1 PH 50 Hz	230 V 1 PH 50 Hz	230 V 1 PH 50 Hz	230 V 1 PH 50 Hz	230 V 1 PH 50 Hz
Voltage tolerance	% of Vac	-15% +10%	-15% +10%	-15% +10%	-15% +10%	-15% +10%	-15% +10%	-15% +10%

Misc.

	Units	DR-FC Evo 25	DR-FC Evo 30	DR-FC Evo 45	DR-FC Evo 60	DR-FC Evo 80	DR-FC Evo 95	DR-FC Evo 120
Noise level @2m from flue terminal	dB(A)	<45	<45	<45	<45	<45	<45	<45
Number of (power) anodes	-	1	2	2	2	2	2	2
Weight when empty	kg	196	239	239	239	405	405	405
Approximate shipping weight	kg	215	260	260	260	426	426	426
Maximum floor load/ weight filled with water	kg	423	625	625	625	909	909	909