Excel Power XL-DFAW-22S 20 kVA Single Phase Diesel Generator

Limited quantity available - 12/14 weeks' lead time - we recommend the Excel XL-DK-22S as a replacement.

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

Engine

Alternator

Control panel

Dimensions & weight

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

• Excel Power XL-DFAW-22S 20 kVA 1-Phase Datasheet (PDF)

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.