Danfoss SET 3E Manuale utente

SET 3E

Electronic 24 Hour Programmer

for Heating and Hot Water

Installation Guide

Danfoss Heating

MAKING MODERN LIVING POSSIBLE

SET3E

For a large print version of these instructions

please call Marketing on 0845 121 7400.

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.

Certification Mark

Danfoss Heating 3

Installation Instructions

SET3E

Electronic 24-Hour Programmer

for Heating and Hot Water

Index

1.0 Installation Guide .....................................................................................4

2.0 System Overview.......................................................................................4

3.0 Installation ...................................................................................................4

3.1 Wiring.....................................................................................................6

3.2 Typical Gravity DHW Pumped HTG .............................................7

3.3 Typical Fully Pumped System with Spring Return Zone

Valve in Heating .................................................................................8

3.4 Typical Gravity DHW Pumped HTG with Spring Return

Zone Valve in DHW............................................................................9

3.5 Typical Fully Pumped System with 3-Port Mid-Position

Valve .................................................................................................... 10

3.6 Typical Fully Pumped System with Spring Return Zone

Valve in each Service ..................................................................... 11

3.7 Typical Fully Pumped System with Fully Motorised

Zone Valve in each Service.......................................................... 12

4.0 Replacement............................................................................................. 13

SET3E

Speciﬁcation

Power supply 230 ± 15% Vac, 50/60Hz

Switch action 2 x SPDT Type 1B

Switch rating

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

Timing accuracy ± 1 min/month

Power reserve minimum 10 hours

Enclosure rating IP30

Max. ambient temperature 45°C

Dimensions, mm (W, H, D) 158 x 99 x 38

Design standard EN 60730-2-7

Control Pollution Situation Degree 2

Rated Impulse Voltage 2.5kV

Ball Pressure Test 75°C

1.0 Installation Guide

2.0 System Overview

Please Note:

This product should only be installed by a qualiﬁed electrician or

competent heating installer and should be in accordance with the

current edition of the IEEE wiring regulations.

1. Fix the wallplate to the wall or ﬂush mounted box as required.

The connections are at the top and the vertical centre line of

the unit, at the position shown on the diagram C/L (in line with

terminal ).

2. Surface cables can only enter from below the unit. If mounted on

a ﬂush mounted box, cables can enter from the rear through the

aperture in the wallplate.

3. For mains voltage applications a link must be ﬁtted between

terminals L, 2 and 5.

4. Whilst the unit does not require an Earth connection, a terminal is

provided on the wallplate for Earth continuity purposes.

3.0 Installation

Danfoss Heating 5

5. Referring to the wiring diagrams on page 6-12, connect the unit

as shown.

6. The unit is supplied ready for use in systems having PUMPED

primaries. Should the unit be required for use in a system having

GRAVITY primaries, remove the small link located on the rear of

the unit. The link, which is clearly labelled can be found on the

bottom RIGHT hand side of the unit.

7. Ensure all dust and debris are cleared from the area.

8. Locate the module on the latches at the bottom of the wallplate

and hinge upwards to fully engage the unit connectors into the

wallplate. Tighten the two ﬁxing screws to secure the unit to the

wallplate.

9. Before setting the programme, check the unit and circuit. Switch

ON the mains supply and press both WATER & HEATING rocker

switches to the ON position - both red LED’s should now be

illuminated. Adjust any remote thermostat to check the services

operate correctly.

10. Then press both WATER and HEATING rocker switches to the OFF

position and check that both services do not operate.

11. Finally, press both WATER and HEATING rocker switches to

TIMED position prior to programming the unit.

Leave at least

25mm below

product Rear entry

cable access

Cable aperture

knockouts

Wall or

plasterbox

ﬁxing

Terminal

block

Outline of

programmer

Leave suﬃcient space

for screwdriver access

C/L

SET3E

NOTE: For mains voltage applications links must be ﬁtted between

terminals L, 2 and 5.

3.1 Wiring

N/O

NOTES:

FOR SET2E LINK

TERMINALS 1 & 5

FP975 ON A SET

WALLPLATE

NL123456

TIMER

OFF

COM

DHW

N/C

COM

HTG

OFF

N/O N/C

Typical wiring diagrams for various types of systems are shown on

the following pages.

Note: Whilst every attempt has been made to ensure the accuracy of this

information it is recommended that the speciﬁc information relating to

the ancillary controls is obtained from the manufacturers concerned.

Danfoss Heating 7

DHW = Domestic Hot Water

3.2 Typical Gravity DHW Pumped HTG

N L 1 2 3 4 5 6

3 amp fuse

D.H.W. HTG

ON OFF

Mains

Supply

Programmer

Terminals

Boiler Pump

Room

Stat

ON OFF

Links

SET3E

3.3 Typical Fully Pumped System with Spring

Return Zone Valve in Heating

N L 1 2 3 4 5 6

3 amp fuse

D.H.W. HTG

ON OFF

Mains

Supply

Programmer

Terminals

Boiler

& Pump

S.R.Z.V

in HTG

Room

Stat

ON OFF

Cyl.

Stat

Links

Other Danfoss Randall products suitable for use with above circuit:-

AT cylinder thermostat;

2 x HP22 or HP28 motorised zone valve with spring return actuator

and SPST auxiliary switch.

Danfoss Heating 9

3.4 Typical Gravity DHW Pumped HTG with

Spring Return Zone Valve in DHW

Other Danfoss Randall products suitable for use with above circuit:-

AT cylinder thermostat;

HP28C motorised zone valve with spring return actuator and SPDT

auxiliary switch.

N L 1 2 3 4 5 6

3 amp fuse

D.H.W. HTG

ON OFF

Mains

Supply

Programmer

Terminals

Boiler Pump

Room

Stat

ON OFF

NS.R.Z.V

in DHW

Cyl.

Stat

SET3E

3.5 Typical Fully Pumped System with 3-Port

Mid-Position Valve

N L 1 2 3 4 5 6

3 amp fuse

D.H.W. HTG

ON OFF

Mains

Supply

Programmer

Terminals

N3-port

mid pos

valve

Room

Stat

ON OFF

Boiler

& Pump

Cyl.

Stat

Links

Other Danfoss Randall products suitable for use with above circuit:-

AT cylinder thermostat

HS3 3-port mid-position valve with spring return actuator.

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