EN
WL14DB Aeroclimatizator pro elektrické autobusy — systém chlazení a vytápění s vysokým napětím
EV system file EV-WL14DB | Purpose-built for battery-electric buses: high-voltage compressor drive, heat-pump heating and low auxiliary power consumption.
- Praevisio
- Producta Commendata
1. Built for the Electric Bus Platform
An electric bus runs its AC directly from the high-voltage traction battery (DC 250–750 V) — there is no engine belt and no engine-driven compressor. The WL14DB is purpose-built for this: an electric compressor (LM-50) driven through a DC/DC converter, delivering 16 kW cooling and 12 kW heating for 6.0–7.0 m electric buses at a total power draw of just 4.6 kW.
2. Official Technical Data
Parameter |
Valor |
Potentia refrigerationis |
16 KW |
Capacitas calefactionis |
12 kW (heat-pump / PTC hybrid) |
Vehiculum applicabile |
6.0 – 7.0 m electric bus |
Voltage input |
DC 250 – 750 V |
Consumptio potentiae |
4.6 kW total |
Fluxus aeris per evaporatorem |
3,200 m³/h |
Fluxus aeris condensatoris |
4,800 m³/h |
Electricus (LM-50) |
|
Refrigerans |
R407c |
Dimensiones |
2325 × 1560 × 265 mm |
Pondus |
≤ 155 kg |
Imperium Software |
Systema programmabile incorporatum Airjoy |
Fig. 1 — Tabula parametrorum technicorum WL14DB officialis (data ex catalogo fabricantis)
Fig. 2 — Dispositio interna: compressor electricus, spire, ventiles et systema controlis altius voltatis
3. Architectura Systematis Altius Voltatis
Component |
Configurationis |
Compressor electricus |
LM-50 (OEM) |
converter DC/DC |
250–720 V / 2 kW |
separator vapor-liquid |
WQYZ-3 (Airjoy) |
Valvula Expansionis |
electronic TS-6 (Danfoss / Honeywell) |
valve four-way |
reversing for heat mode |
Ventilatores condensatoris |
24V brushless × 2 |
blowers evaporator |
24V / 293 L × 4 |
Tabula Imperii |
LM824D (Airjoy) |
Fig. 3 — Unit in export transport frame (external view)
4. Efficiency Logic
With only 4.6 kW drawn from the traction battery, the WL14DB adds roughly 1–2% to the bus's auxiliary energy consumption at full cooling — versus 8–12% for older fixed-displacement belt-driven designs. The electronic expansion valve (TS-6) modulates refrigerant feed continuously instead of cycling, holding capacity with less energy.
5. Installation & Roof Opening
Fig. 4 — Manufacturer's roof-opening drawing with service hatch (mm)
6. Buyer FAQ
Q1. Which buses does the WL14DB fit?
6.0–7.0 m battery-electric buses and minibuses with DC 250–750 V traction systems.
Q2. Does it provide heating?
Yes — heat-pump heating at 12 kW with reversing four-way valve, plus PTC option for extreme cold.
Q3. What voltage does it accept?
DC 250–750 V input through the DC/DC converter; the control system runs on 24 V auxiliary.
Q4. What refrigerant does it use?
R407c.
Q5. How efficient is it?
4.6 kW total power draw at full cooling — typically 1–2% of traction battery consumption on a 6–7 m bus.
Adhibe turmam nostram exportatricem
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.
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