Danfoss 103E5 Installation guide

103E5

Electronic Timeswitch

for Controlling Hot Water and Heating

(Including Factory Replacement Units FRU)

Danfoss Heating

Installation and User Guide

Index

Installation

Product speci cation 3

Installation 4-6

Wiring 6-9

Replacement 10-11

User

What is a timeswitch 12

Your timeswitch 13

Setting the clock 14

Factory preset programmes 15

Setting the programme - 24 hour 16

Setting the programme - 5/2 day 17

Running the programme 18

Temporary user overrides 19

Battery backup 20

INDEX

Contact details 24

Certification Mark

Danfoss can accept no responsibility for possible errors in catalogues, brochures, and other printed material. All trademarks in this material are property of the respective companies. Danfoss and the Danfoss logotype are trademarks of Danfoss A/S. All rights reserved.

Installation Instructions

Please Note:

This product should only be installed by a quali ed

electrician or competent heating installer, and should be in accordance with the current edition of the IEEE wiring

regulations.

Product speci cation

Speci cation

Power supply 230 Vac ± 15%, 50 Hz

Switching action 1 x SPST, Type 1B

Switch rating 264 Vac, 50/60Hz, 3(1)A

Timing Accuracy ±1 min./month

Power Reserve Minimum 14 days

Enclosure Rating IP30

Max. Ambient Temperature 45°C

Dimensions, mm (W, H, D) 102 x 136 x 47

Speci cation

Design standard EN 60730-2-7

Control Pollution Situation Degree 2

Rated Impulse Voltage 2.5kV

Ball Pressure Test 75°C

Installation

NB. For FRU units - go straight to point 6.

1. Loosen the  xing screw in the base of the unit to release the Wiring Cover.

2. Holding the unit face downwards, press  rmly in the centre of the wallplate and slide it apart and lift it from the module.

3. Fix the wallplate and terminal block to the wall, or plaster box, as required. Ensure that the screw heads do not protrude beyond the vertical centre rib of the wallplate,

Installation

or this will prevent the module correctly locating onto the wallplate.

Screw  xing holes (screwheads MUST NOT protrude above centre rib)

Vertical centre rib

Wallplate & Terminals

4. Surface cables can only enter from below the unit. Cut an appropriate cable aperture in the wiring cover. If the wallplate is mounted on a plaster box, cables can enter from the rear below the terminal block.

5. Electrical connections are simpli ed by using a Wiring Centre. However, if this is not used, the wallplate terminal identi cation is as shown.

LOAD

ON SPARE COM N L

123 5 6

Mains Supply

(via 3 amp. fuse)

If the system being controlled is 230 Vac then terminals

3 and L must be linked with insulated cable capable of carrying full load current. Whilst the unit does not require an earth connection, a terminal is provided on the wallplate for earth continuity purposes.

6. Referring to the wiring diagrams on page 6-9, connect the unit as shown.

7. Find out from the user whether the unit is required to operate in 24-hour mode (factory preset) or weekday/ weekend mode (5/2 day). To convert to 5/2 day mode remove the small two-way connector from the pins towards the left of the recess on the rear of the module, then press the SELECT/ADVANCE/+/- buttons all at the same time to RESET the unit.

8. Ensure all dust and debris are cleared from the area. Plug the module into the wallplate by locating it onto the wallplate and, when  ush with it, sliding it down, ensure the hook at the top of the wallplate engages with the slot at the back of the module.

Installation

9. Before setting the programme, check the unit and circuit. Press the SELECT button until the bar in the display lines up with the word ON. Adjust the remote thermostats to check the system operates correctly.

10. Then press the SELECT button until the bar lines up with the word OFF and check the system does not operate.

11. When the circuit check has been completed, replace the wiring cover and tighten the  xing screw. Cut any cable aperture in the wiring cover which may be necessary to accommodate surface mounted cables.

12. Finally set time of day and programmes required, noting that the unit is supplied with a pre-set programme, as stated on Page 14.

Wiring

103, 103E5

Typical Gravity DHW with pumped heating

COM

L N

ROOM ' STAT

LINK

CALL

BOILER TERMINALS

L N

103E5 TERMINALS

MAINS SUPPLY

FUSED 3 AMP

PUMP TERMINALS

Typical control of Pump for Central Heating on a Solid Fuel System

LINK

103E5 TERMINALS

MAINS SUPPLY

FUSED 3 AMP

COM

ROOM ' STAT

CALL

Wiring

L N

PUMP TERMINALS

Typical Heating Only system, Boiler and Pump control

COM

L N

ROOM ' STAT

LINK

CALL

BOILER TERMINALS

L N

103E5 TERMINALS

MAINS SUPPLY

FUSED 3 AMP

PUMP TERMINALS

Typical control of Low Voltage System requiring voltage free contacts

103E5 TERMINALS

Wiring

COM

LOW

VOLTAGE

ROOM

' STAT

CALL

MAINS SUPPLY FUSED 3 AMP

LOAD

LOW VOLTAGE SUPPLY

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