YJT Gas Heater Basics
The YJT series gas heater is fueled by natural or liquefied gas, CNG or LNG, and has near-zero exhaust gas. Features automatic program controlto ensure safe and reliable operation. Patented product, originated in China.
The YJT series gas heater has multiple protective features, which includes a temperature sensor, overtemperature protection, decompressor and gas leakage detector. These devices ensure the heater's safety and reliability. Its lon probe sensor acts as ignition sensor, which is accurately calibrated.
The YJT series gas heater has 12 types of index signals, which can indicate heater faults. This makes the YJT series liquid heater safer and more convenient to maintain.
Suitable for preheating engine with a cold start and heating the passenger compartment in various types of gas powered buses, passenger buses and trucks.
The motor (1) drives the fan (5) to rotate at high speed, the vacuum detector (2) detects the negative pressure, and the gas solenoid valve opens. The fan inhales the combustion air and the gas at the same time and air and gas are fully mixed in the air-fuel mixer (4) and then are discharged from the nozzle (9). The igniter (3) is discharged by the ignition electrode (7), ignites the combustion gas, the air-gas mixture is burned in the combustion chamber (11), heat generated passes through the lamella (8), and exhausts are discharged from the exhaust pipe to the atmosphere. The lamella (8) absorbs heat and heats the circulating liquid in the heat exchanger (10), and the liquid is discharged under the action of the circulation pump (6).
Working Schedule:
Turn on the heater power switch. When the water temperature is below 68℃, the heater works: the motor pre-purge for 10seconds, the ignition electrode is powered, and the power supply of the gas reducer solenoid valve works after 1 second. If flame probe detects successful ignition, the heater goes into the normal combustion state, the ignition electrode is powered off. When the water temperature rises to 81 ° C, the heater is stopped and the combustion indicator is off. After stopping the combustion, the motor is delayed for 150 seconds. When the water temperature drops to the starting temperature (68° C), the heater starts again.
