BENDIX BW1671 Manuale Utente Scaricare il pdf (Pagina 9)

6. Install o-ring(5) into its groove in the piston(6). Install

piston(6) into the M-12

™

modulator body. The piston stem

fits into the small hole in the center of the body.

7. Install o-ring(4) onto the protrusion on the bottom of the

M-12

™

modulator solenoid assembly(2). Install the

solenoid assembly onto the valve body(3). The solenoid

assembly will fit on the M-12

™

modulator body in any of

four orientations, 90 degrees apart. Secure the solenoid

assembly to the valve body with the four 1/2" bolts. Torque

the bolts to 120-150 in. lbs.

8. Install gasket(7) onto the EC-11

™

controller. Install the

EC-11

™

controller(1), as shown in Figure 9, by plugging

the 4-pin electrical connector from the solenoid assembly

into the socket in the bottom of the controller. Press in

until lock tab engages. Ensure engagement by pulling

the connector lightly. Place the controller on to the

solenoid assembly and secure with the four 1/2" bolts

and lockwashers. Torque to 30-60 in. lbs.

DIAGNOSING AND LOCATING A SYSTEM

PROBLEM

GENERAL

The EC-11

™

controller contains self-test and diagnostic

circuitry that continuously checks for proper operation of

the entire antilock system, including wiring continuity. A dash

light, controlled by the EC-11

™

controller, advises the driver

of the antilock system condition. Specific component

condition is provided by a series of Light Emitting Diodes

(LEDs) displayed through a “window” in the EC-11

™

controller

housing.

The dash light’s separation from the EC-11

™

controller

diagnostic window allows the driver to be aware of any

problems that occur but not to be confused by diagnostic

information.

A special feature of the MC-11

™

antilock system is failure

latching. When the controller senses an error, it stores the

condition in memory, disables antilock, and illuminates the

dash light and the appropriate LEDs on the EC-11

™

controller.

The condition is truly stored–it is not cleared by loss of

power to the EC-11

™

controller. The LEDs will re-light when

power is restored and will remain illuminated until the problem

is corrected. After the actual problem is discovered and

corrected, maintenance personnel can clear the EC-11

™

controller diagnostics by passing a small magnet over the

RESET area in the “window.”

DIAGNOSTIC LEDs

There are six LEDs and a magnetic reset switch on the

EC-11

™

controller diagnostic window.

“VOLT” LED

This red LED illuminates when power to the EC-11

™

controller

falls outside the acceptable range of 9-18 volts. If the voltage

returns to within the acceptable range, the VOLT LED will

go off. This is the only LED that will reset itself when the

failure condition no longer exists.

“MOD” LED

This red LED illuminates AND LATCHES ON when solenoid

resistance is not within the acceptable range of 9.5-11.5

ohms. It can also illuminate if excessive electrical spikes

are present in the power line.

“SNS 1” AND “SNS 2”

The red SNS LEDs illuminate AND LATCH ON to indicate

any one of a number of permanent or intermittent failures.

(For example, open or shorted wheel speed sensor, open or

shorted sensor wiring, no wheel speed signal.)

“CONT” LED

This red LED illuminates AND LATCHES ON if the EC-11

™

controller is malfunctioning, or if excessive electrical spikes

are present in the power line.

“PWR” LED

This green LED illuminates and remains on during vehicle

operation to indicate that vehicle power is reaching the

EC-11

™

controller.

TROUBLESHOOTING

GENERAL

While the EC-11

™

controller diagnostic display locates a

specific problem area, it is still necessary to determine

whether the problem resides in the component itself or the

wiring. Basically, the troubleshooting procedure that follows

is devoted to narrowing down the problem to either the wiring

or a specific antilock component.

RESET

VOLT

MOD

SNS1

SNS2

CONT

PWR

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 19 20

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Dimplex LA16ASR Manuale delle Istruzioni (24 pagine)

Marchio: Dimplex | Categoria: Heat pumps | Dimensione: 2.96 MB |

Indice

MOUNTING and OPERATING MANUAL

LA 16ASR

READ IMMEDIATELY

CAUTION!

APPENDIX

Dimension Drawing

Equipment Data

APPENDIX: 11.2 EQUIPMENT DATA

11.3.1 Heating Mode

APPENDIX: 11.3 SCHEMATICS

11.3.2 Cooling Mode

Cable diameters all 0,75mm

Control lead 20x1,0mm

Heat pump controller

11.4.3 Terminal Diagram

11.4.4 Legend

Hydraulic Block Diagram

Requirements of category II

D-95326 Kulmbach

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BENDIX BW1671 Manuale Utente Pagina 9

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