EN
WL08F1 Rooftop Bus Air Conditioning Assembly
Document type: OEM replacement technical file | Model: WL08F1 (LM08F1 platform) | Status: Production & export verified
- Overview
- Recommended Products
1. Product Identity & Intended Application
The WL08F1 is a complete rooftop bus air conditioning assembly engineered as an OEM replacement / original fitment for mid-size buses, minibuses and light trucks with vehicle lengths of 5.0–6.0 m. It is a drop-in system: condenser, evaporator, twin fans, compressor interface and control wiring are delivered as one matched assembly, so fleet workshops avoid the risk of mixing unmatched components.
Product name |
Rooftop bus air conditioning assembly (complete unit) |
Model number |
WL08F1 (LM08F1 production platform) |
Vehicle range |
5.0–6.0 m buses, minibuses, light trucks |
Cooling capacity |
10 kW / 34,120 BTU/h |
Voltage system |
DC 12V or 24V — dual platform |
Refrigerant |
R134a, factory charge 1.8 kg |
Installation |
Roof-top, rear engine bay or under-chassis (bracket set per vehicle) |
2. Cooling Capacity File
Capacity is the first number a bus AC buyer checks. The WL08F1 is rated at 10 kW (34,120 BTU/h) — the standard sizing band for 5–6 m passenger compartments under tropical and mid-latitude summer loads. Total evaporator airflow of 1,600 m³/h distributes that capacity evenly from the front row to the rear seats.
Parameter |
Value |
Remarks |
Cooling capacity |
10 kW / 34,120 BTU/h |
Rated at 35 °C ambient, 60% RH |
Evaporator airflow |
1,600 m³/h |
Two evaporator fans |
Condenser airflow |
Dual fan, high static |
Two condenser fans |
Refrigerant |
R134a — 1.8 kg charge |
Globally serviceable |
Voltage |
12V / 24V DC |
Fits most commercial platforms |
Compressor displacement |
210 cc |
Balanced cooling vs engine load |
Fig. 1 — WL08F1 complete assembly (three-quarter view, glossy white housing, twin condenser fans on top deck)
3. System Architecture — Matched Components
A bus AC fails when one sub-system is mismatched. The WL08F1 is delivered with all four heat-exchange sub-systems pre-matched at the factory:
Sub-system |
Configuration |
Why it matters |
Condenser |
Parallel-flow aluminium coil |
Maximum heat rejection, minimum weight & charge |
Condenser fans |
2 × high-efficiency axial fans |
Even cooling at idle / low speed |
Evaporator |
Copper tube + aluminium fin |
Corrosion resistance, long service life |
Evaporator fans |
2 × fans, 1,600 m³/h total |
Fast pull-down, no rear-seat hot spots |
Compressor |
210 cc, engine belt driven |
Properly sized — avoids clutch cycling |
Control & harness |
Sealed electrical connections |
Vibration-resistant, IP-rated joints |
Fig. 2 — Internal layout: evaporator core (blue fin block), copper refrigerant lines, dual centrifugal blowers and control harness
Fig. 3 — Core detail: DC 24V dual-centrifugal blower assemblies and mounted control PCB — the serviceable heart of the unit
4. Vehicle Fitment & Matching Guideline
Use the table below as a first-pass selection guide. For custom vehicles send us your vehicle dimensions, voltage and target capacity — the same production line supports custom brackets, fan configuration and compressor displacement without MOQ lock-in.
Vehicle type |
Length |
Recommended unit |
Notes |
Minibus / shuttle |
5.0–5.5 m |
WL08F1 10 kW |
Standard roof fit |
City bus (mid) |
5.5–6.0 m |
WL08F1 10 kW |
High-idle duty |
Light truck cabin |
5.0–6.0 m |
WL08F1 10 kW |
Rear bay or roof |
Custom / special |
Any |
Custom build |
Brackets, fans, cc per spec |
5. Installation Interface & Physical Data
Overall dimensions |
1520 × 1100 × 203 mm |
Total weight |
≤ 55 kg (roof / frame mount safe) |
Mounting |
Roof-top, rear-engine bay, under-chassis |
Tools required |
Standard workshop tools |
Dual fan redundancy |
If one fan fails, remaining fan keeps partial cooling |
Maintenance access |
Service panels on top deck — no unit removal |
6. Factory Verification — What Ships After Testing
Every WL08F1 unit passes in-line verification before batch traceability labels are applied:
Fig. 4 — Production workshop: WL08F1 units on assembly stations with in-line QC and finished-goods storage
7. Packaging & Global Logistics
Units are shipped in a reinforced wooden + galvanized steel frame crate (see Fig. 5) that survives container stacking and rough handling. Sea, air or express shipment available; spare parts (fan motors, blades, expansion valves, filters, thermostats, control panels) are stocked for after-sales support.
Fig. 5 — Export packing: unit secured in wooden crate with galvanized steel rails, ISO 9001 certified production
8. Buyer FAQ
Q1. Is the WL08F1 a complete system or just the rooftop unit?
It is a complete assembly: condenser, evaporator, twin condenser fans, twin evaporator fans, compressor interface and wiring — matched and tested at the factory. The compressor itself is supplied separately or per your existing engine-driven set-up.
Q2. Can I run it on 12V or 24V?
Both. The WL08F1 is available in DC 12V and DC 24V versions — specify your fleet voltage when ordering.
Q3. What refrigerant does it use?
R134a with a factory charge of 1.8 kg — globally available and service-friendly. Parallel-flow condenser and copper/aluminium coils are compatible with standard service equipment.
Q4. What is the lead time for a single unit and for a fleet order?
Single units are dispatched from stock within 7 days; fleet orders (10+ units) follow the production schedule — monthly capacity is 500+ units.
Q5. Do you support custom brackets or dimensions?
Yes. The same production line supports custom dimensions, fan configurations, compressor displacement and mounting brackets, with no MOQ lock-in.
Q6. What is the warranty?
Extended warranty covering compressor, fans and coils, with technical documentation, spare-parts lists and remote troubleshooting included.
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.
