Model 102.pdf

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102
electro-mechanical mini-
programmer for controlling
hot water and heating
Installation & User Instructions
including Factory Replacement Units (FRU)
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Index
Installation
Product specifi cation
3
Installation
4-5
Wiring
6
User
Your programmer
7
Setting the time of day
8
Setting the programme
8-9
Selecting operating mode
10
Temporary overrides
11
Contact details
12
2
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Installation Instructions
Please Note:
This product should only be installed by a qualifi ed
electrician or competent heating installer, and
should be in accordance with the current edition of
the IEEE wiring regulations.
Product specifi cation
Specifi cation
Power supply
230Vac ± 15%, 50 Hz
Switching action
1 x SPST, Type 1B
Max. Switch rating
264Vac, 50/60Hz, 6(2)A
Timing Accuracy
±1 min./month
Enclosure Rating
IP20
Max. Ambient Temperature
55°C
Dimensions, mm (W, H, D)
112 x 135 x 69
Design standard
EN 60730-2-7
Control Pollution Situation
Degree 2
Rated Impulse Voltage
2.5kV
Ball Pressure Test
75°C
3
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Installation
Pre-Selector wheel
Selector switch
Plug-in replacement
module
Wallplate/Terminal
block (not with FRU
units)
NB. For FRU units - go straight to to point 4 on page 5
wallplate/
terminal
block
1.
Loosen the fi xing screw in
the base of the unit to release
the grey plastic Wiring Cover.
Ensure the protective tape
over the thumbwheel remains
in place.
2.
Holding the unit clockface
downwards, press fi rmly in
the centre of the wallplate
and slide it from the module
as shown.
plug-in
module
4
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3.
Fix the Wallplate/Terminal Block to the wall with
countersunk No.8 woodscrews or to a steel box to BS
4662. 1970 or a surface mounting steel or moulded
box having centres of 23/8” (60.3mm).
4.
Referring to the Wiring Diagrams on page 6, connect
the unit as shown. Ensure that terminals 3 and 6 are
linked where required (Mains Voltage applications) with
insulated cable capable of carrying full load current.
5.
Ensure all dust and debris has been cleared away
from the area, then plug the module fi rmly into the
wallplate ensuring that the hook at the top of the
wallplate engages with the slot at the back of the body.
Press the module down until it locates solidly.
6.
Cut a cable aperture in the Wiring Cover if necessary;
replace the Wiring Cover, and tighten the fi xing screw.
7.
Switch on Mains & test for correct operation as follows:
i)
Remove protective tape from pre-selector wheel.
ii)
Remove dial cover & rotate the clock dial two
complete revolutions to clear the mechanism.
ii)
Check that all positions of the Selector Switch
and Tappets operate correctly. (See instructions
in User Booklet.)
8.
Replace the dial cover. Finally leave this booklet,
containing the USER instructions with the Householder.
9.
If the unit is to be left turned off and is in a dusty
atmosphere, protect the pre-selector wheel by re-
affi xing the protective tape.
IMPORTANT: Remove tape prior to putting unit into service .
5

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