On May 11, 2026, LONGWELL opened a project to evaluate converting an existing fan coil unit design from an AC motor configuration to an EC motor setup. The request focused on model designation LWFC-34WA-07, featuring an ABS centrifugal fan housing, intended for hydronic cooling applications. The customer requested an EC motor option along with pricing for a return air plenum box configuration.
Engineering Specification and Design Output
LONGWELL engineering completed the technical drawing for model LWFC-34WA-07 on May 14, 2026, with technical review completed on May 15, 2026. The drawing details the physical envelope and baseline specification for the unit.
| Specification Label | Value |
|---|---|
| Model Designation | LWFC-34WA-07 |
| Voltage / Frequency | AC 220 V / 50/60 Hz |
| Air Flow (m³/h) | 360 / 260 / 170 |
| Cooling Capacity (W) | 1800 |
| Input Power (W) | 44 (30 pA) |
| Noise (dBA) | 40 |
| Water Flow (Kg/h) | 310 |
| Water Pressure Loss (KPa) | ≤ 30 |
| Maximum Allowable Working Pressure | 1.6 MPa |
| Dimension A / B / C (mm) | 460 / 490 / 750 |
The engineering output includes mechanical dimensions and standardized piping interfaces, including 3/4-inch internal threads for inlet, outlet, and condensate drain connections.
Discuss a similar requirement
If you require custom EC motor fan coil units or modified centrifugal blowers for HVAC retrofits, contact our engineering team with your required airflow, duty point, voltage supply, and physical envelope constraints.
Contact LONGWELL Engineering or explore fan configurations on LONGWELL Fan Selector.
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