Sanyo DE User Manual download pdf (Page 5)

ENVIRONMENTALLY FRIENDLY TECHNOLOGY SUPER ABSORPTION

SANYO control system

Display and control board

■ Display(normal)

Table 1. Indication lamp Sample 1.

Sample 2.

Exhaust gas temp 236°C

CH W temp 12.3 7.1°C

Notice : Low level vacuum

Caution : Foul tube of COW

Name Lamp color

Running(Operation) indication lamp Red

Stop indication lamp Green

Alarm indication lamp Orange

Bunner combustion indication lamp Red

Cooling / Heating indication lamp Orange

Remote / Local select button with lamp Red

Mode select button with lamp Red

Data display LCD

symbol

Table 2. Typical operation data

High temperature generator

Exhaust gas

Chilled water

Cooling water

Hot water

Chiller / heater

Combustion

No.1 Absorbent pump

Refrigerant pump

Low level vacuum (Notice / Caution)

High concentration (Notice / Caution)

Foul tube of cooling water (Notice / Caution)

High cooling water temperature (Notice / Caution)

Foul chamber (Notice / Caution) (only for oil-fired types)

Chilled water

Hot water

Chiller / heater

Burner

Temperature

Operation hours

Message

Set point

ON-OFF

Table 3. Typical alarm data

Operation alarm

Others

Generator solution level

Thermal relay of No.1 Absorbent pump

Thermal relay of No.2 Absorbent pump

Thermal relay of burner blower

Thermal relay of oil pump

Thermal relay of refrigerant pump

Interlock of chilled water pump

Interlock of hot water pump

Interlock of cooling water pump

Interlock of system

Generator pressure

Chilled water flow rate

Hot water flow rate

Generator temperature

High concentration

Purge tank pressure sensor

Solution temp sensor

Condensed refrigerant temp sensor

Generator temp sensor

Chilled water sensor

Hot water sensor

Cooling water sensor

Refrigerant temp sensor

Power failure

The SANYO control system surpasses other proportional only control

systems available today. The digital PID(proportional, integral, and dif-

ferential) control maximizes unit performance by maintaining a ±0.5°C

deviation in leaving chilled water temperature from setpoint. Proportional

controls typically can only maintain a ±1°C deviation from setpoint. The

controller's innovative design also incorporates the ability to start and

stop the system chilled/hot and cooling water pumps. During shutdown

these pumps are sequenced to insure a complete dilution cycle.

The leaving chilled water temperature is measured every five seconds

and fuel input is changed according to the gradient of the leaving chilled

water temperature curve. System temperatures, setpoints, and opera-

tional records are displayed along with indicator lights for the chiller, pumps

and burner.

The SANYO control system offers its users self-diagnostics by constantly

monitoring the chiller's status and will automatically shut the chiller down

should a fault occur. The cause of shutdown will be retained in memory

and can be displayed for immediate operator review. The controller's

memory will also retain and display the cause of the last three system

fault conditions. This method of retaining fault conditions is extremely

useful for maintaining an accurate record of unit performance and fault

history.

MODE

SETTING

STOP RUN

CHILLER

BUZZER STOP

STOP LOCAL

REMOTE

OPERATION

ALARM

BURNER

HEATING

COOLING

REF PUMP

#1 ABS PUMP

#2 ABS PUMP

PURGE PUMP

BURNER BLOWER

H Generator temp 149.9°C

Display and control board

1 2 3 4 5 6 7 8 9 10 ... 49 50

Comments to this Manuals

No comments

Sanyo DE User Manual Page 5

Comments to this Manuals