WCFXE-HP Screw Heat Pump

Cooling Capacity from 59 to 769 RT (208 to 2704 kW)
Heating Capacity from 53 to 862 RT (185 to 3030 kW)

The WCFXE-HP features:

• Improved Quiet, Reliable Series of Vertical Screw Compressors
• Improved Flooded Shell & Tube Evaporator and Condenser
• High Efficiency and COP
• Advanced Vision Controller
• Colour Touch Screen Display
• Green Refrigerants

The Dunham Bush WCFXE-HP Series represents a milestone in thermal engineering, designed to replace wasteful conventional boiler setups with an eco-friendly heat recovery system. While traditional facilities run separate, energy-intensive boilers for hot water and standalone chillers for cooling, the WCFXE-HP acts as a dual-purpose solution, recycling rejected heat from the air conditioning cycle to generate hot water for free.

At the heart of the system is the patented Dunham Bush vertical twin-screw compressor. The vertical layout ensures exceptionally low vibration profiles, smaller mechanical footprints, and optimal internal oil management under heavy continuous loads. Because the compressor features a hermetic direct-drive profile without external gears or shaft seals, internal casing leaks are eliminated, vastly extending runtime intervals between routine overhauls.

To achieve maximum thermodynamic output, the WCFXE-HP utilizes flooded shell-and-tube configurations for both its evaporator and condenser vessels. Fully submerged copper tubes optimize heat transfer coefficients, helping the system achieve an excellent Coefficient of Performance (COP). Controlled by an advanced electronic expansion valve (EEV) and monitored via a full-color Vision touchscreen display, this heat pump maintains tight water temperature stability even when facility loads fluctuate wildly.

Key Technical Highlight Matrix

Core Functions of the Dunham Bush WCFXE-HP Series

• Simultaneous Heating & Air Conditioning: Captures the thermal heat rejected from your indoor cooling water loop and upgrades it into usable high-temperature hot water, maximizing systemic efficiency.

• Stepless Capacity Modulation: Utilizes a rugged, hydraulically actuated internal slide valve mechanism. This allows the compressor loading to ramp smoothly from $100\%$ down to $25\%$ matching real-time process changes without energy-wasting on/off cycles.

• Flooded Evaporator/Condenser Fluid Dynamics: Keeps copper heat transfer paths completely flooded with liquid refrigerant. Removable water heads permit rapid mechanical tube brushing to eliminate hard-water scaling common in regional industrial water networks.

• Intelligent Vision Microprocessor Monitoring: Constantly evaluates system vitals—including oil pressure differentials, motor temperature limits, and refrigerant flows—and takes self-protective adjustments before an electrical or mechanical fault can occur.

Strategic Importance Across Bangladesh

1. Government Institutes, Public Health & Defense Facilities

State infrastructure—including central specialized public hospitals, national research labs, and modern public security academies—requires heavy air conditioning alongside vast volumes of hot water for sanitation, kitchens, and laundry loops.

• Slashes Public Energy Demands: By eliminating or reducing reliance on natural gas boilers, the WCFXE-HP saves millions of cubic feet of domestic gas, supporting national carbon reduction goals.

• Quiet Operation for Recovery Zones: The smooth operation of the vertical screw compressor limits acoustic vibrations, making it perfectly suited for placement near hospital wards or administrative offices.

2. Private Industrial Sectors, Pharmaceuticals & Textile Mills

For highly controlled industrial sectors—such as cleanroom pharmaceutical production lines, fabric dyeing complexes, and garment washing setups—thermal inconsistencies can ruin entire production runs.

• Zero Boiler-Fuel Vulnerability: With fluctuating natural gas supply pressures across industrial zones like Gazpur, Narayanganj, and Chattogrom, switching to an electric heat pump guarantees a continuous, reliable source of process hot water.

• Sustained Energy Savings: The extreme part-load values (IPLV) significantly reduce monthly grid utility charges, allowing fast return on investment for green factory upgrades.

Why Buy From Bhai Bhai Engineering?

Procuring a heavy-duty water-cooled screw heat pump plant requires a qualified engineering partner. Bhai Bhai Engineering provides full-scale industrial technical services throughout Bangladesh:

• Direct Factory Sourcing Access: We secure and import brand-new, 100% authentic Dunham Bush machinery directly from authorized manufacturing tracks with verified factory check sheets.

• Complete Mechanical & Electrical Commissioning: Our skilled engineering team assists through foundation checks, hydronic balancing, loop sensor calibration, and live startup testing.

• Straightforward BDT Commercial Estimates: Avoid unexpected import logistics surprises. We offer transparent commercial quotes in Bangladeshi Taka (BDT) designed to align cleanly with your enterprise budgeting processes or government tender structures.

• Dedicated Local Spare Parts Inventory: We keep a local inventory of genuine maintenance kits, control chips, and electronic expansion valves to keep your process machinery running year-round.

Contact Us for a Quotation

Equip your commercial project with elite thermal heat pump technology. Get in touch with our specialized project sales engineering desk in Dhaka today to get a detailed commercial proposal and technical product data sheets based on your specific load configurations.

• Corporate Headquarters: Podirdia, Khilbarirtek, Vatera, Dhaka-1212. (Nur-E-Madina Mosjid Complex)

• Sales & Project WhatsApp: +8801722039029

• Corporate Mailbox: bhaibhaiengineering51@gmail.com

• Engineering Portal: https://www.bhaibhaiengineering.com/

Frequently Asked Questions (FAQs)

Q1: How can the WCFXE-HP save money compared to a gas boiler?

Ans: Traditional boilers convert fuel to heat at an efficiency below 100%. The WCFXE-HP screw heat pump moves heat from one loop to another, achieving a Coefficient of Performance (COP) where 1 kW of electrical input can yield 4 to 5 kW of usable heat energy, significantly lowering monthly operational bills.

Q2: What is the benefit of the vertical screw design used in this heat pump?

Ans: The vertical screw design provides a very balanced mechanical load distribution, making it significantly quieter and more vibration-free than older horizontal compressors. It occupies less floor space and does not require a complex external oil pump layout.

Q3: Can this heat pump work if my facility only needs heating and no cooling?

Ans: Yes. The advanced Vision controller allows the system to manage its cycles flexibly. It can source heat from a variety of water inputs, such as underground well water or industrial effluent streams, making it highly versatile for process heating.

Q4: Is it easy to clean the heat exchangers if our water supply contains heavy mineral scaling?

Ans: Yes. Both the evaporator and condenser utilize cleanable shell-and-tube designs with fully removable water heads. Your maintenance personnel can mechanically brush out the interior copper tubes regularly to remove scaling and maintain peak heat exchange efficiency.