Ultra Low Ambient Heat Pumps (ULAHP) By Trigen DC
Engineered for Extreme Cold. Designed for Reliable Heating at Temperatures as Low as –35°C.
Traditional heating systems lose efficiency, become inconsistent, or entirely fail under extreme cold. This is where Ulta Low Ambient Heat Pumps (ULAHP) by Trigen DC redefine what thermal systems can achieve.
Designed, developed, and manufactured by Trigen DC, these specialized heat pumps are built to perform in environments where temperatures range from –35°C to +30°C ambient, delivering stable, efficient, and highly cost-effective heating. Whether for industrial applications, commercial establishments, or cold-climate residential settings, Ultra Low Ambient Heat Pumps are the next-generation solution for superior thermal resilience.
Engineered with robust components, advanced refrigerant cycles, and intelligent controls, Trigen DC’s ULAHP ensures optimal performance even in the harshest winters—making it a benchmark in cold-climate heating technology.
Engineered for Extreme Cold. Designed for Reliable Heating at Temperatures as Low as –30°C.
Traditional heating systems lose efficiency, become inconsistent, or entirely fail under extreme cold. This is where Ulta Low Ambient Heat Pumps (ULAHP) by Trigen DC redefine what thermal systems can achieve.
Designed, developed, and manufactured by Trigen DC, these specialized heat pumps are built to perform in environments where temperatures range from –30°C to ambient, delivering stable, efficient, and highly cost-effective heating. Whether for industrial applications, commercial establishments, or cold-climate residential settings, Ultra Low Ambient Heat Pumps are the next-generation solution for superior thermal resilience.
Engineered with robust components, advanced refrigerant cycles, and intelligent controls, Trigen DC’s ULAHP ensures optimal performance even in the harshest winters—making it a benchmark in cold-climate heating technology.
What Is an Ultra Low Ambient Heat Pump (ULAHP)?
An Ultra Low Ambient Heat Pump (ULAHP) is a high-performance heating system designed to operate efficiently in extremely cold climates — even at temperatures as low as –35°C. Unlike conventional heat pumps that lose capacity or shut down near freezing conditions, a ULAHP continues to extract heat from the frigid outdoor air and deliver stable, reliable heating for industrial, commercial, and residential applications.
Using advanced refrigerant cycles, robust reciprocating compressors, frost-resistant heat exchangers, and intelligent PLC/HMI controls, ULAHPs ensure consistent hot water output (up to 40°C) and dependable performance in high-altitude, cold-desert, and snow-prone regions. This makes them a next-generation solution for energy-efficient, zero-combustion heating in the harshest winter environments.
These systems utilize:
- High-efficiency reciprocating compressors
- Advanced thermal or electronic expansion valves
- Specialized low-temperature refrigerant circuits
- Intelligent PLC/HMI control logic
- Durable heat exchangers designed for frost-prone conditions
This deep-tech engineering allows ULAHP systems to extract heat even when ambient air appears to contain none.
Trigen DC’s Ultra Low Ambient Heat Pumps are optimized for:
- Industrial process heating
- Commercial heating needs
- Large residential complexes
- Industrial temperature control in cold deserts and snow-covered regions
- Applications where conventional heat pumps fail
With capacities extending up to 100 kW and beyond, these systems can be customized for a wide range of environmental, industrial, and residential applications.
Product Overview:
What Are Trigen DC’s Reversible Heat Pumps?
Reversible Heat Pumps (RHP) from Trigen DC are advanced dual-function thermal systems that seamlessly switch between heating and cooling modes depending on process requirements. This integrated system eliminates the need for separate boilers, chillers, or electric heaters—reducing both operational complexity and energy consumption.
These systems are intelligently engineered using high-efficiency screw compressors, advanced thermal/electronic expansion valves, PLC-based controls, and resilient metallurgy to ensure maximum durability even in demanding environments.
Trigen DC’s Reversible Heat Pumps are ideal for industries that require seasonal, daily, or even hour-to-hour switching between heating and cooling—making them one of the most cost-efficient and flexible thermal utilities available today.
Built on years of thermal engineering innovation, Trigen DC’s RHP portfolio offers:
- Heating capacities up to 737 kW
- Cooling capacities up to 545 kW
- Hot water generation up to 50°C
- Chilled water output as low as 10°C
- High heating COP up to 4.0
- High cooling COP up to 3.0
- Fully optimized for 24×7 industrial duty
Key Advantages of Trigen DC’s Ultra Low Ambient Heat Pumps
Extreme cold typically causes heating equipment to lose capacity and efficiency. But Trigen DC’s ULAHP systems are engineered specifically for ultra-low ambient performance, ensuring:
- Consistent heating output
- Reliable thermal comfort
- High energy efficiency
- Smooth operation regardless of external temperatures.
This capability makes them ideal for industries operating in Himalayan states, high-altitude zones, cold storage regions, and global cold-weather markets.
Trigen DC utilizes optimized refrigerant selection, heat exchanger geometry, and cycle engineering to ensure strong heating performance in freezing temperatures. This advanced thermodynamic design maximizes heat extraction even from extremely cold air.
Despite operating in extreme weather, the ULAHP systems maintain a COP (Coefficient of Performance) of up to 2.1, which is significantly higher than:
- Electric resistance heaters
- Diesel-fired heaters
- Oil-fired boilers
- Direct gas heating
This means industries and facilities get more heat output per unit of electricity consumed—leading to major cost savings.
The rated outlet water temperature of 40°C makes ULAHP ideal for:
- Building heating systems
- Radiant floor heating
- Space heating
- Preheating for industrial processes
This versatility supports a wide variety of cold-climate applications.
Equipped with PLC or embedded controllers with HMI, Trigen DC’s ULAHP systems offer:
- Automated defrosting cycles
- Smart temperature optimization
- Real-time system diagnostics
- Parameter visibility and control
- IoT enabled
- Predictive behavior insights
These intuitive controls ensure the system performs optimally regardless of weather fluctuations.
The compressors/heat exchangers and other components use in the construction are internally engineered and designed for rugged operating condition to ensure durability, frost resistance, and long-term performance in harsh environments.
Regions in northern India and globally that depend on:
- Diesel burners
- Electric heaters
- Kerosene heaters
- Firewood heaters
can dramatically reduce energy cost and carbon emissions by switching to Trigen DC's clean, electrified heating systems.
With no combustion, no soot buildup, and no fuel storage, Ultra Low Ambient Heat Pumps deliver:
- Cleaner operation
- Lower maintenance cost
- Safer working environments
Deep-Tech Engineering
Behind Trigen DC’s Drying System
Deep-Tech Engineering Behind Trigen DC’s Drying System
Advanced High-Temperature Heat Pump Cycle
At the core of the system lies Trigen DC’s proprietary high-temperature heat pump cycle, allowing the system to achieve reliability:
- Hot air output from 60°C to 120°C.
- High thermal stability.
- Rapid temperature rise.
- Consistent heat across large volumes of air.
This makes the system ideal for industrial drying processes that require uniform, controlled hot air.
Reliable Compressor Technology
Equipped with a robust compressor, the system maintains:
- High efficiency.
- Low vibration.
- Longer lifespan.
- Quiet, reliable operation.
Our compressors also provide smooth modulation — essential for precise temperature control.
Smart Thermal & Electronic Expansion Valves
Depending on customer needs, the system can use:
- Thermal Expansion Valve (TXV)
OR
- Electronic Expansion Valve (EEV).
Both ensure optimal refrigerant flow, improved temperature stability, and high system responsiveness under varying load conditions.
Intelligent Controls for Precision Drying
Every unit is equipped with an advanced control system enabling:
- Real-time temperature monitoring.
- Fine-tuned airflow control.
- Stable drying conditions.
- Energy-optimized operation.
This is critical for industries like textiles, food, chemicals, printing, and pharma, where temperature uniformity directly affects product quality.
Why Choose Trigen DC’s
Ultra Low Ambient Heat Pumps?
Why Choose Trigen DC’s Ultra Low Ambient Heat Pumps?
Trigen DC’s engineering team has developed a highly specialized refrigeration cycle capable of operating reliably at –35°C ambient temperatures—something most heat pumps worldwide fail to deliver.
With electrical input as low as 3–27 kW* and strong COP performance, ULAHP drastically reduces heating costs compared to diesel or gas systems.
* Subject to heating capacity
No fossil fuels, no emissions, no fire hazards - ideal for industries aiming for ESG compliance and net-zero transitions.
Systems can be customized for:
- Flow rate
- Heating intensity
- Heat exchanger type
- Control logic
- Wide ambient conditions
Engineered using corrosion-resistant materials and frost-optimized components, ULAHP guarantees long-term reliability with minimal maintenance.
Performance & Efficiency Superiority
High COP = Lower Energy Cost
The system delivers a COP of 1.7–3.5, meaning:
Superior Drying Quality
Industries often face issues like:
- Overdrying.
- Uneven drying.
- Product damage.
- High reject rates.
Trigen DC's system solves this with:
- Precise temperature control.
- Stable airflow.
- Even heat distribution.
- Zero flame contamination.
This leads to consistent output and improved product quality.
Intelligent Airflow Management
With airflow up to 34,000+ CMH, the system ensures:
- Fast drying cycles.
- Large volume air movement.
- Consistent humidity control.
- Better moisture removal.
Ideal for bulk drying applications.
Wide Operating Range
- Ambient operating: 10–45°C.
- Designed for a 25°C standard ambient.
- Can operate efficiently across varied climates, including hot industrial environments
Industry Applications - Where Ultra Low Ambient Heat Pumps Excel
Trigen DC’s ULAHP systems are widely applicable across industries that require reliable heating in sub-zero climates.
Cold-Climate Industrial Facilities
Industries in northern India, high-altitude areas, and extremely cold international markets benefit from stable, low-cost heating for:
Process heating, Hot water for cleaning, Worker comfort heating, Machine warm-up cycles
Residential & Commercial Buildings
ULAHPs are ideal for:
High-rise apartments, Villas in cold regions, Commercial complexes, Government housing, Resort and hospitality heating
particularly in regions like Himachal, Uttarakhand, Kashmir, Sikkim, Leh, and Ladakh.
Agriculture, Dairy & Farming
Cold weather heating for:
Hatcheries, Greenhouses, Dairy hot water, Storage facilities
ensures operational stability even during freezing winters.
Food & Beverage Manufacturing
ULAHP supports:
Processing room temperature control, Hot water generation for cleaning, Sanitization water heating, Fermentation room heating
All at significantly reduced operational cost
Hospitals & Healthcare
Heating solutions for:
Hot water, Patient rooms, Laundry systems, Sterilization processes
where reliability is mission-critical
Pharmaceutical & Chemical Manufacturing
Critical industries that require stable environmental control for:
Reaction chamber pre-heating, Water heating, Vessel heating, Cold-air extraction compensation
can rely on ULAHP during harsh winters
Tourism & Hospitality in Cold Regions
Hotels, lodges, and resorts need:
Hot water, Room heating, Pool heating, Bath heating systems
which ULAHP can deliver efficiently, even at –30°C.
Data Centers & Telecom Stations
Equipment rooms in extremely cold climates benefit from controlled heating solutions for:
Server room thermal stability, Anti-condensation heating, Equipment warm-up
In all these sectors, the ability to generate both heating and cooling from one efficient system drives significant cost savings and operational efficiency.
Technical Highlights
| Technical Parameters | Units | Values |
|---|---|---|
| Heating Capacity | kW | 6 to 55 and above |
| Rated Outlet Water Temperature | °C | 40 |
| Heat Exchanger | - | BPHE / Shell & Tube / Tube-in-Tube / Shell & Coil |
| Controller Type | - | PLC with HMI / Embedded Controller with HMI |
| Compressor Type | - | Reciprocating Compressor |
| Throttle Type | - | Thermal ExV / Capillary / Electronic ExV |
| Power Supply | V/Ph/Hz | 380 - 440V / 3Ph / 50Hz / 60Hz |
| Heating COP | - | 2.1 (typical) |
| High/Low Pressure & Overload Protection | - | Yes |
| Working Temperature Condition | °C | –35 to +30 Ambient |
Sustainability & Carbon Reduction Impact
Industries transitioning from diesel, LPG, or kerosene heating to ULAHP can reduce carbon emissions significantly.
Typical Emissions Reduction: 30 – 180 Metric Tonnes of CO₂ Per Year
(Depending on system capacity and operating temperature and operating hours.)
Sustainability & Carbon Reduction Impact
Industries transitioning from diesel, LPG, or kerosene heating to ULAHP can reduce carbon emissions significantly.
Reliable Heating for the Coldest Climates
Trigen DC’s Ultra Low Ambient Heat Pumps redefine cold-climate heating with unmatched reliability, efficiency, and sustainability. From industrial plants and commercial buildings to cold regions and high-altitude environments, these systems ensure heating remains uninterrupted – even at –35°C.
With advanced deep-tech engineering, intelligently designed refrigerant cycles, smart controls, and robust construction, Ultra Low Ambient Heat Pumps provide a future-ready alternative to fossil-fuel heating. The result: lower operational cost, higher efficiency, and a significantly reduced carbon footprint.
Trigen DC continues to push thermal engineering boundaries – enabling industries and communities to stay warm, efficient, and sustainable even in the harshest climates.
Why Choose TRIGeN DC?
TRIGeN DC is India’s foremost deep-tech developer of high-temperature industrial heat pumps, delivering solutions unmatched globally.
Advantage TRIGeN DC:
- Pioneer of India’s first steam-generating heat pump.
- Leader in 120°C–145°C high-temperature electrified heat.
- World’s First heat pump operating at high altitude of 17900 ft.
- Built for 24×7 industrial duty cycles.
- IoT-driven predictive intelligence.
- Complete design-to-commissioning capability.
- Proven deployment across diverse sectors
Trigen DC — Engineered for the World. Made in India.
Ready to upgrade to a cleaner,
smarter, and more energy-efficient system?
Ready to upgrade to a cleaner, smarter, and more energy-efficient system?
Contact Trigen DC today for a free consultation, detailed ROI analysis, or a customized Steam Generating Heat Pump solution tailored to your industrial needs.