MK K4499 Installation guide

Brand: MK

Model: K4499

Type: Installation guide

432

Grid Plus 1-10V Analogue

Dimming Controller for HF

Fluorescent Ballasts

Please keep this leaflet for future reference

APPLICATION

This product must only be connected to the Low Voltage, 1-

10V Control Terminals

of a compatible High Frequency

Dimmable Ballast. The ballast must be compatible with

variable resistor dimming control.

The minimum box depth required for this product is 40mm.

This product does not include a mains ON/OFF switch for

turning HF ballasts on or off. This must be achieved via a

separate, suitable mains rated switch.

This product must not be connected to the mains supply.

This product is not a tungsten lamp dimmer.

47804 PL Ed. 2

FEATURES

Preset adjust to set minimum light level.

Preset adjust for use with multiple dimmable ballasts

Available with appropriately finished knobs to suit different

front plate finishes in the MK ranges, e.g. Edge, Albany,

Chroma, Logic Plus, etc.

SAFETY INSTRUCTIONS

• This product is a low voltage controller and must not be

connected to the mains supply.

• This pr

oduct must be installed by a competent person in

accordance with the current editions of the IEE Wiring

Regulations (BS7671) and Buildings Regulations. If in any

doubt, consult a qualified electrician.

• To prevent electrocution, do not work on any appliance live.

Turn off the mains supply before commencing work.

• If this product has a metal front plate it must be earthed.

• To prevent fire hazard do not exceed the rated load

specified for the product.

• Waste electrical products should not be disposed off with

the household waste. Please recycle where facilities exist.

Check with your Local Authority or retailer for recycling

advice.

INSTALLATION

To install this product in a MK Grid Plus System, please refer to

the Grid Plus System instruction leaflet.

1. Remove the knob from the shaft by gently pulling it away

from the controller (this is only necessary if using the

controller in Front Plates which are more than 2 Modules in

width).

2. Ensure that the Grid Plus Mounting Frame is installed into

the appropriate Mounting Box in accordance with sections

D1 to D5 of the Grid Plus System Instruction Leaflet.

NOTE: Minimum internal box depth required is 40mm.

ELECTRICAL CONNECTIONS

Use a 2 core cable for connections to the Dimming Controller,

as specified by the manufacturer of the High Frequency

Dimmable Fluorescent Ballast.

If the Dimming Controller is installed alongside a mains rated

switch to provide ON/OFF function for the HF Ballast, then the

insulation for the cable used to connect the Dimming

Controller must be rated for mains voltage.

CONNECTION TO A SINGLE BALLAST

Connect the terminal on the ballast marked + to terminal 1 of

the controller.

Connect the terminal on the ballast marked - to terminal 3 of

the controller. See fig. 1.

CONNECTION TO MULTIPLE BALLASTS

Depending on the ballast type, up to four ballasts can be

connected to this unit. See fig. 2.

Connecting more than four ballasts may limit the dimming action

to only the fully anticlockwise part of operation.

Connect the + terminals of the ballasts together, and connect

to terminals 1 and 2 of the controller, together.

Connect the - terminals of the ballasts together, and connect

to terminal 3 of the controller.

Do not mix + and – connections on the ballasts, or the circuit

will not function properly and the ballasts may be damaged.

MULTIPLE BALLASTS - ADJUSTMENT OF BEST FUNCTION

OF THE CONTROL KNOB

1. Turn the main control knob fully clockwise

2. Turn the preset control PR2 fully clockwise (see diagram on

page 6), using the trimming tool provided.

47804PL Ed2 2/2/2006 12:19 pm Page 1

765

3. While observing the light output from the fluorescent lights,

slowly turn PR2 back anticlockwise until a slight reduction in

the light level is noticed. Turn PR2 back slightly. This is the

best setting position for the unit.

ADJUSTMENT FOR MINIMUM LIGHT OUTPUT

When the control knob is set to minimum, this unit is factory set

to produce a 1V level on a single ballast.

To increase the minimum light level, adjust the preset control

PR1 clockwise (see diagram on page 6), using the trimming

tool provided or anticlockwise, to reduce.

Excessive force can damage the preset controls. Adjust

car

efully and by using the tool provided.

ABSOLUTE MAXIMUM RATINGS AND SPECIFICATION

Max recommended loading ................4 ballasts (1-10V type)

Max voltage allowable across terminals 1, 3..12V d.c. or a.c.rms

Max current rating (terminals 1,3) ......................................8mA

Ambient Temperature Range ................................0°C to 40°C

Nominal Control Resistance between terminals 1, 3 (terminal 2

unconnected) ..................................................................

110kV

Nominal Control Resistance between terminals 1, 3 (terminal 1

and 2 connected together)................................................

60kV

PR1

Min Level

PR2

Multi Ballast

Diagram showing the location of PR1 and PR2

Figure 1

HF Fluorescent

Ballast

1-10V

Dimming

Controller

HF Fluorescent

Ballast 1

1-10V

Dimming

Controller

HF Fluorescent

Ballast 2

Figure 2

MK Electric

Novar ED&S Ltd

The Arnold Centre, Paycocke Road, Basildon,

Essex SS14 3EA. U.K.

Tel: +44 (0) 1268 563000

Fax: 01268 563405

(UK Sales)

Fax: +44 (0) 1268 563360 (International)

email: technical@novar.com

web site: www.mkelectric.co.uk

Technical queries should be made to:

MK Electric, Technical Sales and Services Department

The Arnold Centre, Paycocke Road, Basildon, Essex SS14 3EA

Tel: +44 (0)1268 563720 Fax: +44 (0)1268 563064

All marks in this document identified with a R or TM symbol

adjacent to the mark are Trade Marks of Novar ED&S Limited.

47804PL Ed2 2/2/2006 12:19 pm Page 5

MK K4499 Installation guide

MK K4499 Installation guide

MK K4499 Installation guide

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