Sanyo DE operation manual Burner description, Gas train

ENVIRONMENTALLY FRIENDLY TECHNOLOGY

Burner description

The DE direct-fired chiller/heaters are equipped with a nozzle mix burner. The burners are capable of firing with natural gas.

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

Table 8. Burner model

The burner maximizes flame retention at all capacity ranges of modula- tion, thus ensuring long life and efficient operation.

SUPER ABSORPTION

Gas train

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

	Gas burner	Oil burner		Dual fuel (combination) gas / oil burner
Model No.	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	G10 ZMD	RL9 ZMD	RMS 10 ZMD	RGL10 ZMD	RGMS10 ZMD
DE-72	G10 ZMD	RL10 ZMD	RMS 11 ZMD	RGL10 ZMD	RGMS11 ZMD
DE-73	G11 ZMD	RL10 ZMD	RMS 11 ZMD	RGL11 ZMD	RGMS11 ZMD
DE-81	G11 ZMD	RL10 ZMD	RMS 11 ZMD	RGL11 ZMD	RGMS11 ZMD
DE-82	G11 ZMD	RL11 ZMD	RMS 50 / 2 ZMD	RGL11 ZMD	RGMS50 / 2 ZMD

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 switch1

Air damper

Burner

Figure 31. Typical burner and gas train

11 12 13 9 14

Air

P

GAS

P

1 2 3 4 5 8 6 7

40 41