Ecotherm Hybrid High Capacity Water Heater EHHE with external shell & tube heat exchanger for steam/water or water/water operation

The EHHE hybrid high-capacity water heater, with a capacity from 50–2,000 kW, features two different primary heat sources and a secondary connection, operating with either steam or water for heating. ECOTHERM (Austria) is a world-leading brand with a history dating back to 1880, inheriting and building on its strengths in mechanical engineering and specialized solutions. Thousands of hospitals, hotels, schools, industrial plants, and large buildings worldwide have benefited from ECOTHERM's superior central hot water and steam solutions. PGTECH is honored to be ECOTHERM's authorized representative, bringing these core values and world-leading advanced technological solutions to the Vietnamese market, so that the market can benefit from these excellent technological values, "Made in Austria."

The Hybrid Water Heater Type “EHHE” can be used for water/water and steam/water operation. It is designed for two different primary heat sources and is equipped with one secondary connection. For example, waste heat or a low temperature heat pump is preheating the water and heated to final temperature by a different primary source such as hot water boiler or steam.

Features:

• ideal solution for heat recovery from waste heat
• suitable for preheating with low temperature heat pump
• one heat exchanger with two primary heat sources one secondary connection
• independent of availability of pre-heating source
• maximum efficient utilizing of the available heat sources with maximum hygiene

Model EHHE: Hybrid High Capacity Water Heater (50 – 2.000 kW for water / steam operation)

• Multiple-stage heating of water in two shell and tube heat exchangers by individual and independent primary heat sources
• Efficient utilizing of the available heat sources with maximum hygiene since no stagnation of water with less than 60°C will occur
• Possibility of thermal disinfection of the water at >70°C in the second heat exchanger
• Highly efficient heat transfer and most extensive prevention of liming and scaling through self-cleaning effect of patented shell & tube heat exchangers with free floating turbulator rods made of stainless steel.
• Fibre-Fleece insulation of storage tank with robust outer sheathing made of PP (RAL 7037), patented aluminum closure strips and self-fixing closure caps, quick and easy installation, 80 mm insulation up to 1,000 liters and 100mm above. 100% recyclable, fire protection class B2 (B1 upon request)

Example:

• Pre-heating of the water to e.g. 45°C by utilizing e.g. a heat pump or heat recovery of a chiller or any other waste heat
• Systems can be designed that the entire heating can be accomplished by the second primary source only, if the first primary source is not available

The working principle of Model EHHE

1. Stainless steel hot water storage tank, standing, with removable fibre-fleece insulation

2. Stainless steel heat exchanger for pre-heating with patented floating tubular rods, pre-assembled with piping

3. Stainless steel heat exchanger for after-heating with patented floating tubular rods, pre-assembled with piping

4. 2 way condensate control valve with electric

actuator controlled by T3 to regulate the hot water temperature

5. Manual gate valve for inspection or removal of

heat exchanger without draining the tank or losing service

6. Safety pressure valve set at 10 or 6 bar, corresponding to maximum tank operating pressure

7. Automatic air vent and anti-vacuum valve, with

manual cock for rapid air expulsion during tank filling

8. Non-return valve for prevention of hot water/ condensate convection back flow during standby

9. Steam trap ensures protection of control components from steam

10. Differential pressure sensor for monitoring heat exchanger fouling

11. Vacuum breaker

12. Shut off valve: Shut off from steam and condensate system

13. Two way high temperature safety and shut off valve with electric actuator

14. Strainer to protect control components

PGTECH is the authorized representative of ECOTHERM® (Austria) in Vietnam, a world-leading brand for solutions for central hot water systems, steam systems, and solar energy for hotels, hospitals, and industrial facilities. Ecotherm impresses with its "Individual Heat Transfer Solutions" for its hot water and steam systems. Ecotherm provides turnkey solutions for hot water, steam, and solar energy systems, while also offering solutions for hotels, hospitals, and industrial applications that meet the specific requirements of each facility.

PGTECH GROUP LIMITED – Authorized Distributor of HVAC System Products in Vietnam and Regional Markets

News Editorial Board: PGTECH

Engineer: Manh Thang

PGTECH GROUP LIMITED

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