• Gas-fired GeneLink

Gas-fired GeneLink

Gas consumption reduced by 40%*1 by using waste heat
Enhanced waste heat recovery type Gas-fired Gene-Link (EXJE series)

*1 Large chilled water temperature differential catalogue standard specification.

422〜3.516kW (120〜1,000USRT) [Gas-fired]


  • Greatly diminished gas consumption rate by increased the amount of waste hot water recovery
    By increasing the amount of the waste heat recovered, fuel reduction rate of 40% has been achieved and gas consumption has been cut dramatically. Moreover, the chiller can be operated with wasted hot water only, under low load condition (approx. 58% or lower).
  • Utilizing waste hot water during heating mode can simplify the system design (option)
    By placing a plate heat exchanger used for heating on the Gene-Link side, waste heat can be utilized during heating mode.
    This obviates the need*1) for a heat exchanger for heating at the facility side, and helps to simplify the system and can cut 55% to 69% of the gas consumption rate for heating.
  • Use of hot water-heated solar heat
    In addition to the waste hot water of cogeneration systems, solar heat can also be used.

*1 Only in case when all heating demand can be covered by wasted hot water.
*2 Fuel consumption reduction rate during waste heat recovery heating mode varies from one model to another.

Gas consumption

<h3>Gas consumption</h3>
<p>The input of waste hot water reduces gas consumption by approx. 40% during rated cooling operations.<br>
Furthermore, cooling capacity up to 58% can be covered by waste heat recovery cooling only.</p>
<p>The waste hot water outlet temperature will be approx. 77℃ during waste heat recovery operation mode.</p>

Amounts of waste hot water recovery

During partial load operations, priority is given to the use of waste hot water so the amount of gas consumed can be significantly reduced.


■ Chilled water temperature 15 -7 ℃, Cooling water temperature 32-37℃ (43% energy saving model), waste hot water temperature 90-80℃, COP=1.47 (without waste heat recovery)
LHV basis [cooling mode]

Cooling capacity kW 422 738 949 1,407 1,758
USRT 120 210 270 400 500
Cooling capacity
(Operation with waste hot water only)
kW 245 428 551 816 1,020
USRT 69.6 121.8 156.6 232 290
% 58
Fuel reduction rate
(During rated cooling operations)
% 40
Heating capacity kW 337 591 844 1,000 1,291
Cooling capacity kW 2,110 2,461 2,813 3,165 3,516
USRT 600 700 800 900 1,000
Cooling capacity
(Operation with waste hot water only)
kW 1,224 1,428 1,632 1,835 2,039
USRT 348 406 464 522 580
% 58
Fuel reduction rate
(During rated cooling operations)
% 40
Heating capacity kW 1,613 1,936 2,264 2,264 2,695