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Catalogue Absorption

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ENVIRONMENTALLY FRIENDLY TECHNOLOGY

SUPER ABSORPTION

Gas train

Burner description

The DE direct-fired chiller/heaters are equipped with a nozzle mix burner. The burner maximizes flame retention at all capacity ranges of modula-The burners are capable of firing with natural gas. tion, thus ensuring long life and efficient operation.

The burner is factory wired and tested prior to shipment. Manual modulation from low fire to high fire during startup and routine maintenance procedures is provided by an operation switch in the chiller control panel.

The following drawing illustrates some of the common components found in a typical gas train and unit installation. Individual jobs may vary depending on chiller size and specific application.

Table 8. Burner model


Model No.	Gas burner	Oil burner		Dual fuel (combination) gas / oil burner
	Natural gas	Kerosene / light oil	Heavy oil	Natural gas & kerosene	Natural gas & heavy oil
	Model	Model	Model	Model	Model
DE-11	G1 ZMD	—	-	RGL3 ZMD	—
DE-12	G3 ZMD	RL3 ZMD	-	RGL3 ZMD	-
DE-13	G3 ZMD	RL3 ZMD	-	RGL3 ZMD	-
DE-14	G3 ZMD	RL3 ZMD	-	RGL3 ZMD	-
DE-21	G5 ZMD	RL3 ZMD	-	RGL5 ZMD	-
DE-22	G5 ZMD	RL5 ZMD	-	RGL5 ZMD	—
DE-23	G5 ZMD	RL5 ZMD	-	RGL5 ZMD	-
DE-24	G7 ZMD	RL5 ZMD	RMS 7 ZMD	RGL7 ZMD	RGMS7 ZMD
DE-31	G7 ZMD	RL7 ZMD	RMS 7 ZMD	RGL7 ZMD	RGMS7 ZMD
DE-32	G7 ZMD	RL7 ZMD	RMS 7 ZMD	RGL7 ZMD	RGMS7 ZMD
DE-41	G7 ZMD	RL7 ZMD	RMS 7 ZMD	RGL7 ZMD	RGMS7 ZMD
DE-42	G7 ZMD	RL7 ZMD	RMS 7 ZMD	RGL7 ZMD	RGMS7 ZMD
DE-51	G8 ZMD	RL7 ZMD	RMS 8 ZMD	RGL8 ZMD	RGMS8 ZMD
DE-52	G8 ZMD	RL8 ZMD	RMS 8 ZMD	RGL8 ZMD	RGMS8 ZMD
DE-53	G9 ZMD	RL8 ZMD	RMS 9 ZMD	RGL9 ZMD	RGMS9 ZMD
DE-61	G9 ZMD	RL8 ZMD	RMS 9 ZMD	RGL9 ZMD	RGMS9 ZMD
DE-62	G9 ZMD	RL8 / 2 ZMD	RMS 9 ZMD	RGL9 ZMD	RGMS9 ZMD
DE-63	G9 ZMD	RL8 / 2 ZMD	RMS 10 ZMD	RGL9 ZMD	RGMS10 ZMD
DE-71	G10ZMD	RL9 ZMD	RMS 10 ZMD	RGL10ZMD	RGMS10 ZMD
DE-72	G10ZMD	RL10ZMD	RMS 11 ZMD	RGL10ZMD	RGMS11 ZMD
DE-73	G11 ZMD	RL10ZMD	RMS 11 ZMD	RGL11 ZMD	RGMS11 ZMD
DE-81	G11 ZMD	RL10ZMD	RMS 11 ZMD	RGL11 ZMD	RGMS11 ZMD
DE-82	G11 ZMD	RL11 ZMD	RMS 50/2 ZMD	RGL11 ZMD	RGMS50 / 2 ZMD

Figure 31. Typical burner and gas train

Table 9. Gas train


	symbol	Parts name.
	®	Ball valve
	©	Pressure gauge with push button valve
	®	Gas filter
	©	Low pressure governor
	©	Gas pressure switch
	©	Double solenoid valve (DMV)
	©	Gas butterfly valve
	©	Valve proving system (VPS)
	©	Solenoid valve for ignition gas
	©	Blower
	©	Air pressure switchl
	©	Air damper
	®	Burner