Danfoss 103E7 Assembly Instructions

103E7
Installation & User Instructions
including Factory Replacement Units (FRU)
7-day electronic timeswitch
for controlling hot water
and heating
®
Certification Mark

2
INDEX
Index
Installation
Product specification 3
Installation 4-6
Wiring 6-9
Replacement 10-11
User
What is a timeswitch? 12
Your timeswitch 13
Resetting the unit 13
24hr or AM/PM display 14
Setting the Time and Day 14
Factory preset programmes 15
Changing the preset programmes 16
Setting the programme - 7 day 17-18
Setting the programme - 5/2 day 19-20
Running your programme 21
Temporary user overrides 22
Battery backup 23
Contact details 24

3
Please Note:
Thisproduct should only be installed byaqualifiedelectrician
or competent heating installer, and should be in accordance
with the current edition of the IEEE wiring regulations.
Specification
Power supply 230Vac ± 15%, 50 Hz
Switching action 1 x SPST, Type 1B
Switch rating 264Vac, 50/60Hz, 3(1)A
Setting/Running 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
Rated Impulse Voltage 2.5kV
Ball Pressure Test 75°C
Product specification
Specification
Installation Instructions

4
Installation
NB. For FRU units - go straight to point 6.
1. Loosen the fixing screw in the base of the unit to release the
Wiring Cover.
2. Holding the unit face downwards, press firmly 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,
or this will prevent the module correctly locating onto the
wallplate.
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.
Installation
Screw fixing holes
(screwheads MUST
NOT protrude above
centre rib)
Vertical
centre rib
Wallplate & Terminals

5
5. Electrical connections are simplified by using a Wiring
Centre. However, if this is not used, the wallplate terminal
identification is as shown.
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. Refer 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 flap 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 flush with it, sliding it down, ensure
the hook at the top of the wallplate engages with the slot
at the back of the module.
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.
Installation
Load Mains Supply
(via 3 amp fuse)
ON SPARE COM NL
123 5 6

6
103, 103E5
Wiring
Wiring
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 fixing 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 15.

7
12356
L
N
MAINS
SUPPLY
FUSED
3 AMP
L N
COM CALL
ROOM
' S TAT
N
LINK
PUMP
TERMINALS
103E5
TERMINALS
L N L N
COM CALL
N
ROOM
' S TAT
L
N
BOILER
TERMINALS
PUMP
TERMINALS
LINK
103E5
TERMINALS
MAINS
SUPPLY
FUSED
3 AMP
123 56
Wiring
Typical Gravity DHW with pumped heating
Typical control of Pump for Central Heating on a
Solid Fuel System
103E7
TERMINALS
103E7
TERMINALS

8
12356
103E5
TERMINALS
L
N
LOAD
MAINS
SUPPLY
FUSED
3 AMP
LOW
VOLTAGE
SUPPLY
COM CALL
LOW
VOLTAGE
ROOM
' S TAT
COM CALL
N
ROOM
' S TAT
L N BOILER
TERMINALS L N PUMP TERMINALS
L
N
103E5
TERMINALS
MAINS
SUPPLY
FUSED
3 AMP
123 56
LINK
Wiring
Typical Heating Only system,
Boiler and Pump control
Typical control of Low Voltage System requiring
voltage free contacts
103E7
TERMINALS
103E7
TERMINALS

9
103E5
TERMINALS
123 56
MID-POSITION VALVE L N
L
N
MAINS
SUPPLY
FUSED
3 AMP
BOILER &
PUMP
TERMINALS
RED OR
ORANGE
WHITE
OR
BROWN
BLUE GREY
ROOM
' S TAT CYL.
' S TAT
SAT
CALL
COM
N
LINK
123 56
COM CALL
N
ROOM
' S TAT
INPUT OUTPUT NL
L
N
103E7
TERMINALS
MAINS
SUPPLY
FUSED
3 AMP
COMBI BOILER
TERMINALS
Wiring
Typical control of Heating when provided by
Combination type Boiler (see note below)
Typical Heating & Hot Water control system usuing
3 port mid-position valve
103E7
TERMINALS
103E7
TERMINALS
Note: Connection must only be made if input/output of boiler are 230V
signals

10
DANFOSS
RANDALL 103E7
LOAD MAINS SUPPLY
(via 3 amp fuse)
An additional terminal block is
required where these disconnected
leads (or pairs of leads) should be
terminated
ON SPARE COM
1 2 3 5 (N) 6 (L) A B C D
RANDALL 103, 103E, 103E7 123 56 RANDALL 3020 4 2 - 1,7 6 3 5 RANDALL TSR2 5 4 1 3 2 6 7 GRASSLIN 45, 45A, 45E 4 - 3 2 1 HORSTMANN 424 EMERALD & PEARL AUTO RANGE
4 2 3 N L,1 5
HORSTMANN 423 PEARL, EMERALD & TOPAZ 413 NL256
SANGAMO S254 Form 2, S408 Form 5, S251 Form 2
LOAD - - N L
SANGAMO S610 F2, S611 F2, S612 F2, S408 F4, S408 F6, S253 F2, S255 F2
LOAD - SWITCH
LIVE NMOTOR
LIVE
SANGAMO S409 F 8 216 3N5L
Replacement