Danfoss 102E7 Assembly Instructions

102E7
Installation & User Instructions
including Factory Replacement Units (FRU)
7-day electronic
mini-programmer for
controlling hot water
and heating
This product complies with the following EC Directives:
Electro-Magnetic Compatibility Directive.
(EMC) (2004/108/EC)
Low Voltage Directive.
(LVD) (2006/95/EC)

2
INDEX
Index
Installation
Product specification 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
Temporary user overrides 21
Changing clocks forward/back 22
Battery backup 23
Contact details 24

3
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.
Specification
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
Enclosure Rating IP30
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 below.
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 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
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.
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.
Installation
Water Heating
COM
Mains Supply
(via 3 amp fuse)
ON ON NL
123 5 6

6
102, 102E5, 102E7
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. 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 fixing 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 stated on Page 14.

7
Wiring
12356
L N L N
L
N
MAINS
SUPPLY
FUSED
3 AMP
ROOM
' S TAT
LINK
COM
CALL N
PUMP
TERMINALS
BOILER
TERMINALS
102E5
TERMINALS
Typical Gravity DHW with Pumped Heating
Typical domestic gas or oil-fired 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).
102E7
TERMINALS

8
12356
L N
L
N
MAINS
SUPPLY
FUSED
3 AMP
ROOM
' S TAT
LINK
COM
CALL N
BOILER &
PUMP
TERMINALS
102E5
TERMINALS
MID-POSITION VALVE
BLUE GREY
SAT
WHITE
OR
BROWN
CALL
COM
CYL.
' S TAT
RED OR
ORANGE
Wiring
Typical Heating and Hot Water control system using
3-port mid-position valve
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.
102E7
TERMINALS

9
12356
102E5
TERMINALS
L N
BOILER &
PUMP
TERMINALS
L
N
MAINS
SUPPLY
FUSED
3 AMP
LINK
COM
CALL
N
N
COM
CYL.
' S TAT
CALL
N
SAT
ROOM
' S TAT
HEATING
VALVE
D.H.W
VALVE
Wiring
Typical Heating and Hot Water control system using
2-port zone valves
The above control system is available as the Danfoss
Randall 102E7 HEATPLAN pack, which also includes the
RMT room thermostat, AT cylinder thermostat, two 22mm
HPP zone valves and a WB12 wiring box.
102E7
TERMINALS

10
DANFOSS RANDALL 102E7 Water
ON
Heating
ON COM MAINS SUPPLY
(via 3 amp fuse)
An additional terminal block is re-
quired where these disconnected
leads (or pairs of leads) should be
terminated
1 2 3 5 (N) 6 (L) A B C
RANDALL 102, 102E, 102E7 123 56 RANDALL 3020P, 3060 4 2 - 1,7 6 3 5 RANDALL MKII R6 4 5 - 3 1,2 6 7 HORSTMANN CORAL 423 & 424
Boiler
(8)
Air ‘Stat
(8) - 2,3 1 4,7 5 6
HORSTMANN DIAMOND 423 2 4 - N L,1,3 5 6 HORSTMANN DIAMOND 424 2 4 - N L,1,3 5 6 POTTERTON 423 2 4 - N L,1,3 5 6 SANGAMO S409 F1 & F4 2 5 - N,1,3 L 4,6 SANGAMO (Early model) S410 Form 4 1,3 4 - N,2 L
Replacement