MHM Air Cooled Scroll Chiller
Packaged rooftop scroll chiller, 30–260 TR, R-410A, tandem compressors with 25% steps.
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Electric Chillers
MHM Water Cooled Screw Chiller
MHM · WCS Series · Shenzhen MHI, China
Semi-hermetic twin-screw chiller, 80–850 TR, R-134a, for plants with cooling towers.
Cooling capacity80–850 TR
RefrigerantR-134a
Power supply415 V / 3 ph / 50 Hz
COP (full load)5.5–6.1
Unloading25–100% stepless
Warranty18 months
Genuine spare parts and AMC available
The WCS series pairs semi-hermetic twin-screw compressors with flooded shell-and-tube evaporators to reach full-load COP above 5.5 with condenser water from a cooling tower. Continuous slide-valve unloading from 25% to 100% suits spinning mills and pharmaceutical plants where load moves with shift patterns.
Units are supplied with electronic expansion valves, oil separators, a colour touch controller and BACnet or Modbus gateway. MHM supplies the matching cooling tower, condenser pumps and plate heat exchanger for free cooling as one package.
| Model | Capacity (TR) | Capacity (kW) | Input power (kW) | Compressors | Condenser flow (m³/h) | L × W × H (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|
| MHM-WCS-080 | 80 | 281 | 52.0 | 1 × screw | 60.5 | 3200 × 1250 × 1850 | 2650 |
| MHM-WCS-150 | 150 | 527 | 96.8 | 1 × screw | 113.4 | 3900 × 1450 × 2050 | 4300 |
| MHM-WCS-250 | 250 | 879 | 160.2 | 2 × screw | 189.1 | 4400 × 1750 × 2200 | 6800 |
| MHM-WCS-400 | 400 | 1407 | 254.9 | 2 × screw | 302.6 | 4900 × 1950 × 2350 | 9900 |
| MHM-WCS-600 | 600 | 2110 | 380.3 | 2 × screw | 453.9 | 5600 × 2100 × 2500 | 13800 |
| MHM-WCS-850 | 850 | 2989 | 536.7 | 3 × screw | 643.0 | 6400 × 2300 × 2650 | 19200 |
Ratings at standard conditions. Capacities change with ambient, water temperatures and fouling; ask for a site-specific selection.
Hermetic scroll or semi-hermetic screw compressors
Low-vibration compressors with capacity staging keep part-load efficiency high across textile and pharma duty cycles.
Microprocessor controller with Modbus RTU
Leaving-water setpoint, alarms and run hours are readable on the panel and shared to a BMS over RS-485.
Electronic expansion valve
Stable superheat control at 25–100% load and during Dhaka summer ambient swings up to 42 °C.
Hydrophilic-coated condenser fins
Corrosion-resistant fins with 40% longer service life in humid, dusty rooftop conditions.
Phase and pressure protection
Phase-loss, reverse-phase, high/low pressure, anti-freeze and flow-switch interlocks as standard.
Factory run-tested
Every unit is charged, run-tested and tagged with a test certificate before dispatch.
Installed by MHM
Supplied, installed and commissioned by our own site team, with spare parts stocked in Mirpur and annual maintenance contracts.
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View detailsEnquire about MHM Water Cooled Screw Chiller
Tell us your capacity, site and timeline. We reply with a selection, price and delivery within two working days.