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WL24F1 Roof-Mounted Bus Air Conditioner — Long-Haul Duty Profile
Duty profile DP-WL24F1 | Built for long-haul passenger service: sustained capacity, dual-zone airflow and a drive train matched to continuous highway operation.
- Overview
- Recommended Products
1. The Long-Haul Duty Profile
An 8.6–10.5 m intercity or tourist coach runs 8–12 hours a day, often at full passenger load in high ambient heat. The AC must deliver sustained capacity, not just peak: the WL24F1 is rated 26 kW (88,712 BTU) with 4,800 m³/h evaporator airflow and a 6-fan condenser bank that keeps discharge pressure stable hour after hour.
2. Official Technical Data
Parameter |
Value |
Cooling capacity |
26 kW (88,712 BTU) |
Applicable vehicle |
8.6 – 10.5 m bus / coach |
Dimensions |
2835 × 1820 × 230 mm |
Weight |
≤ 150 kg |
Voltage |
DC 24V |
Evaporator airflow |
4,800 m³/h |
Condenser airflow |
9,600 m³/h |
FKX40-655K — 550 / 750 cc |
|
Refrigerant |
R134a — 2.8 kg |
Condenser / evaporator fans |
6 / 4 pcs |
Condenser coil |
Parallel flow (aluminium) |
Evaporator coil |
Fin and tube (copper) |
Fig. 1 — Official WL24F1 technical parameter table (manufacturer's catalogue data)
3. Six Condenser Fans — The Idle & Climb Solution
Highway coaches spend hours at constant speed, but they also idle at terminals and climb mountain grades. The 6-fan condenser bank (LNF273107C) delivers 9,600 m³/h of rejection airflow — enough to hold head pressure in stop-and-go and low-speed climb conditions where single-fan designs lose capacity.
Fig. 2 — WL24F1 on vehicle: roof profile with 6-fan condenser deck
Fig. 3 — Production line: WL24F1 units before final assembly
4. Drive Train for Continuous Duty
The FKX40-655K compressor (550/750 cc) is matched with a 210/260 clutch, SPB belt and an optional 120 A / 28 V alternator — the electrical headroom a coach needs when running lights, wipers, entertainment systems and the AC simultaneously on a 24V system.
Fig. 4 — Internal layout: matched evaporator and condenser sections
5. Kit Configuration — Component BOM
Component |
Model / Brand |
Qty |
Compressor |
FKX40-655K (joint venture) |
1 |
Clutch |
210 / 260 |
1 |
Belt |
SPB (Samsung Korea/Japan) |
1 set |
Alternator (optional) |
120 A / 28 V |
1 |
Evaporator blower |
ZHF283502 (joint venture) |
6 |
Condenser fan |
LNF273107C (joint venture) |
4 |
Expansion valve |
TGEN7.0T (Danfoss) |
1 |
Sight glass |
SGN12S (Danfoss Denmark) |
1 |
Drier filter |
LM8109001-18F1-00 |
1 |
Control panel |
LM824 (Liming) |
1 |
6. Installation & Roof Opening
Fig. 5 — Manufacturer's roof-opening drawing: cut-outs and mounting points (mm)
7. Buyer FAQ
Q1. What buses does the WL24F1 fit?
8.6–10.5 m intercity coaches, tourist buses and large shuttle fleets.
Q2. Why 6 condenser fans?
Idle and low-speed climb performance — 9,600 m³/h rejection airflow holds head pressure in conditions where 2–3 fan units lose capacity.
Q3. Is it 12V or 24V?
The WL24F1 is a DC 24V system, with an optional 120 A / 28 V alternator for heavy electrical load.
Q4. What refrigerant does it use?
R134a with 2.8 kg factory charge.
Q5. Is the compressor included?
Full kit includes FKX40-655K compressor, 210/260 clutch, SPB belt and lines; roof-only option also available.
Contact Our Export Team
Hunan Weili Auto Parts Appliance Co., Ltd. — founded in 2007, ISO 9001 & IATF 16949 certified manufacturer of bus & truck AC parts, electric fans, blowers, lighting and alternator components.
WhatsApp / WeChat: +86-18670382782 | Landline: +86-0731-82034997 / 82034998
E-Mail: [email protected] | Websites: www.weilipart.com | www.weiliautomotive.com | www.cooliparts.com
Send us your OEM part number, vehicle model or drawing — we will reply within 24 hours with a quotation and technical data sheet.
