Excel Power XL-DFAW-22S 20 kVA Single Phase Diesel Generator
Overview
The Excel Power XL-DFAW-22S is a robust, water-cooled diesel generator designed for dependable standby and light prime applications. With a compact acoustic canopy, heavy-duty Fawde engine and high-quality Depco alternator, it’s a smart choice for homes, farms, workshops, site offices and small commercial premises that cannot afford to be without power when the mains fails.
- Power output: 20 kVA / 20 kW (Prime), 22 kVA / 22 kW (Standby) at 230 V, 50 Hz.
- Engineered for reliability: Fawde 4DW92-35D water-cooled diesel engine with Depco DPC184G alternator.
- Clean power delivery: AVR with tight ±1 % voltage regulation for stable single-phase output.
- Quiet operation: Acoustic canopy with approx. 72 dB(A) @ 7 m in free-field conditions.
- Practical runtime: Integrated 71.4 L base fuel tank; around 13 hours at 100 % load (≈5.48 L/h).
- Easy control: Deepsea DSE6120 control panel supporting manual and automatic (AMF/ATS) operation.
- Built to last: Rugged construction, engine and alternator on anti-vibration mounts, weather-protected canopy.
Where it works well
- Emergency backup for homes, high-end residences and small offices.
- Standby power for workshops, light commercial premises and agricultural sites.
- Telecoms, IT rooms and other single-phase critical loads needing dependable backup.
- Sites with limited space where a compact, low-noise acoustic set is required.
Key features
- Prime & standby ratings: 20 kVA / 20 kW prime and 22 kVA / 22 kW standby at 50 Hz, 230 V.
- Fawde water-cooled diesel engine: 4-cylinder, 4-stroke 4DW92-35D engine running at 1500 RPM for long life.
- Depco alternator: DPC184G alternator with class H insulation, IP23 protection and shunt excitation.
- AVR (±1 %): Keeps voltage tight under changing loads to protect sensitive equipment.
- Acoustic canopy: Close-fitting, weather-resistant enclosure giving approx. 72 dB(A) @ 7 m.
- 71.4 L base fuel tank: Steel base tank for extended operation between fills.
- Deepsea DSE6120 controller: Full-featured digital control with monitoring, alarms and AMF capability.
- Integrated protection: Delixi MCCB output breaker and fully guarded moving parts for safety.
Optional extras & upgrades
- Coolant heater (to assist cold-weather starting).
- Battery charger (keeps starting battery topped up in standby).
- External fuel tank options (for extended runtime beyond the base tank).
- Automatic Transfer Switches (ATS) (automatic mains/generator changeover).
- Socket outlet panels (if you prefer plug-in connections rather than hard-wired only).
- Remote monitoring solutions (integration with building or site management systems).
Technical specifications
Generating set
| Manufacturer | Excel Power |
| Model | XL-DFAW-22S |
| Output rating | 50 Hz, 230 V, 1500 RPM, single phase |
| Prime power | 20 kVA / 20 kW |
| Standby power | 22 kVA / 22 kW |
| Voltage regulation | ±1 % (AVR) |
| Noise level | Approx. 72 dB(A) @ 7 m (free-field, acoustic canopy) |
| Connection | Hard-wired via Delixi MCCB (optional socket outlet panel available) |
| Mounting | Engine and alternator on anti-vibration mounts within steel baseframe |
| Emissions class | Non-emissions certified (not EU Stage V) |
Engine
| Make / Model | Fawde / 4DW92-35D |
| Governance | Mechanical |
| Cylinders / Arrangement | 4 / In-line |
| Bore × Stroke | 90 × 100 mm |
| Displacement | 2.54 L |
| Aspiration | Naturally aspirated |
| Cycle | 4-stroke diesel |
| Compression ratio | 17 : 1 |
| Cooling | Water-cooled with engine-driven fan |
| Frequency / Speed | 50 Hz / 1500 RPM |
| Gross engine power (Prime) | Approx. 26 kW |
| Fuel type | Diesel |
| Fuel consumption @ 100 % load | Approx. 5.48 L/hr |
Alternator
| Make / Model | Depco / DPC184G |
| Bearings | Single bearing |
| Insulation class | H |
| Ingress protection | IP23 |
| Excitation | Shunt excited with AVR |
Control panel
| Make / Model | Deepsea / DSE6120 |
| Functions | Digital controller providing engine and generator monitoring, alarms, manual and automatic (AMF/ATS) modes and clear fault indication. |
Dimensions & weight
| Length × Width × Height | Approx. 1900 × 780 × 1000 mm (acoustic canopy) |
| Dry weight | Approx. 673 kg |
| Fuel tank capacity | 71.4 L integrated steel base tank |
What’s in the box
- Excel Power XL-DFAW-22S diesel generator in acoustic canopy
- Deepsea DSE6120 control panel pre-installed
- Basic user and installation documentation
- Pre-delivery inspection and test report (where supplied)
Warranty & support
12-month warranty or 1000 operating hours (whichever occurs first). UK-based technical support is available, with extended service plans and on-site commissioning options on request.
Installation & compliance notes
- Install on a level, well-ventilated surface with adequate space around the canopy for cooling and servicing.
- All electrical connections must be carried out by a qualified electrician; add an ATS if automatic changeover is required.
- Provide correctly sized earthing, over-current and RCD protection in line with local regulations.
- Use suitable diesel fuel (e.g. EN 590 or equivalent) and check engine oil and coolant levels before first start.
Documents available to download
Frequently asked questions
Can I run sensitive electronics?
Yes. The AVR maintains voltage within approximately ±1 %, which is suitable for most sensitive single-phase loads. Ensure the generator is correctly sized and consider starting currents for motors and compressors.
Can it start automatically during a power cut?
Yes. When paired with a suitably rated Automatic Transfer Switch (ATS), the XL-DFAW-22S can start automatically and take over the load when mains power fails.
How noisy is it?
The acoustic canopy gives a noise level of around 72 dB(A) at 7 m in free-field conditions, which is relatively quiet for a set of this size. Site layout and shielding can further reduce perceived noise.
What’s the runtime?
At 100 % load, fuel consumption is approximately 5.48 L/hr, giving around 13 hours from the 71.4 L base tank. At typical part-load operation, you can expect longer runtimes.
Need help with sizing or options? Contact us and we’ll help you match the XL-DFAW-22S to your load profile, starting requirements and installation conditions.