Danfoss 102E7 User Manual

102E7

7-Day electronic mini-programmer

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

Your programmer 12

Resetting the unit 12

24hr or AM/PM display 13

Setting the Time and Day 13

Factory preset programmes 14

Changing the preset programmes 15

Setting the programme - 7 day 16-17

Setting the programme - 5/2 day 18-19

Running your programme 20

INDEX

Temporary user overrides 21

Battery backup 22

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

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

Running/Setting Accuracy ±1 min./month

Power Reserve Minimum 24 hours

Max. Ambient Temperature 45°C

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

Design standard EN 60730-2-7

Control Pollution Situation Degree 2

Speci cation

Rated Impulse Voltage 2.5kV

Ball Pressure Test 75°C

Installation

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

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

Vertical centre rib

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.

Water Heating

ON ON

123 5 6

COM

Mains Supply

(via 3 amp fuse)

If the system being controlled is 230Vac 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 7-day 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 button marked R/S under the  ap 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. Set the rocker switch to WATER & HEATING. 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. Set the rocker switch to WATER ONLY. Press the SELECT button until the bar in the display lines up with the word ON and check that the water circuit only operates.

12. 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.

13. Finally set time of day and programmes required, noting that the unit is supplied with a pre-set programme, as

Wiring

stated on Page 14.

102, 102E5, 102E7

Typical Gravity DHW with Pumped Heating

COM

CALL

L N

LINK

ROOM ' STAT

BOILER TERMINALS

L N

102E7

102E5

TERMINALS

MAINS

PUMP TERMINALS

SUPPLY FUSED 3 AMP

Typical domestic gas or oil- red central heating system with gravity hot water and pumped heating. (If a room thermostat is not used, wire pump live directly to terminal 2 of the 102E7).

Wiring

Typical Heating and Hot Water control system using 3-port mid-position valve

ROOM ' STAT

CALL

WHITE OR BROWN

CYL. ' STAT

SAT

GREY

LINK

COM

BLUE

MID-POSITION VALVE

CALL

RED OR ORANGE

L N

102E7

102E5 TERMINALS

TERMINALS

MAINS

SUPPLY FUSED 3 AMP

BOILER & PUMP TERMINALS

Wiring

The above control system is available as the Danfoss Randall 102E7 HEATSHARE pack, which also includes the RMT room thermostat, AT cylinder thermostat, HS3 mid-position valve and a WB12 wiring box.

+ 16 hidden pages