Drayton SM2 Manual

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Side 1/2
Quick Reference Guide
The table below describes the operation of each of the four numbered switching tappets.
The LED’s will light to indicate when the central heating and/or hot water is on.
Setting the timing dial
After the tappets have been set rotate the dial through 24 hours in the direction of the arrows printed on the dial, until the
correct time is shown opposite the timing mark.
In setting the time of day, optimum accuracy is achieved by moving the dial clockwise close to the correct time, then turn-
ing gently anti-clockwise against the stop mechanism. If necessary make a fine adjustment by one further click clockwise
and turn against the stop again. This replicates the action of the tappet against the cam as the dial rotates and enables
closer setting of the time.
Note: rotating the dial the wrong way could result in damage to the Timer
The SM1 Electro Mechanical Programmer is fitted with one advance button, the SM2 two advance buttons.
These buttons will advance the programme to the next switching event, i.e. if on it will go off, if off it will go on. For exam-
ple, by pressing the appropriate advance button when the time control is in the middle of a heating cycle will make the time
control move to a heating off position.
This facility enables you to override your programme temporarily. The programme will revert to normal timed operation at
the next switching event. Thus if you are going out in the evening and don’t want the rest of the evenings programme you
can press the advance button to turn the heating or hot water on/off until the next programmed event. If both circuits are
to be advanced each circuit should be treated as a separate function.
NB. If the programmer has been set to the Gravity hot water mode and the heating is off, pressing the heating advance
will also bring on the hot water circuit.
Set the link on the back of the time control to P or G according to type of system.
For a pumped system remove the link and for a gravity system leave the link in place
P– Fully PUMPED and controlled system, allowing heating and hot water to be selected and function separately.
G– GRAVITY fed hot water system which does not permit heating to be on without hot water. It is possible to have hot
water without heating.
Note: this link is not fitted on the SM1 timeswitch.
Make sure mains input has a 3 Amp fuse
Installation should be carried out by a qualified electrician or heating engineer and must conform to the I.E.E. Regulations
for Electrical Equipment of Buildings and all other relevant standards.
In many cases the SM2 programmer will fit directly on to the existing wall-plate without any changes to existing wiring. The
chart below shows which programmers can be directly replaced and the wiring detail of those that will need the wall-plate
to be changed.
Generally, when fitting the SM1 timeclock, although it will fit onto existing wall-plates, some wiring changes will be neces-
sary. Please consult the chart below for guidance. The SM1 has Volt-Free terminals so you need to fit a link from L to
Terminal 1 on the wall-plate if you want 230V output.
The SM1 timeswitch will automatically switch your boiler ON and OFF once or twice a day, at whatever times you choose.
The SM2 central heating programmer will automatically switch your heating and hot water system ON and OFF once or
twice a day, at whatever times you choose.
If you have a fully pumped and controlled system you will be able to have central heating without hot water and vice versa.
You can choose a different mode for your heating to hot water.
A gravity-fed hot water system does not allow heating to be on without hot water.
You also have the option to obtain continuous ON or OFF operation.
Type:
SM1 24-
Hour Timeswitch
SM2 24-Hour Programmer
Voltage:
Rating:
Ambient Temp:
0 °C to 50 °C Storage
Wiring:
Maintenance:
These Electro Mechanical Time Controls are simple to use central heating controllers which can be set to give the pro-
gramme you want as described below.
Using the switching tappets
The four tappets round the timing dial can be moved by pushing them in towards the dial and sliding them round to the
desired switching time. When they are released they engage with the underside of the dial where they are securely held
in position.
Twice a day setting
Push the hot water and/or central heating slide button to the “twice” position. Start with number 1 tappet which must be
pushed and moved round the dial to the first On setting time required, release pressure to secure. Move number 2 tap-
pet in the same way to the first chosen Off time. Move the number 3 tappet to your second
On time and the number 4
tappet to the last Off time.
Once a day setting
Slide the hot water and/or central heating slide buttons to the “once” position. The programmer will now only operate the
number 1 tappet for On, ignore the 2 and 3 tappets and operate the number 4 tappet for Off.
Note: it is important to use the correct tappets for the ON and OFF switchings otherwise the wrong programme will result.
SM1 & SM2 Electro Mechanical Time Controls
Before Installation
Central Heating slide button for OFF, TWICE A DAY,
ONCE A DAY, or 24 HR
Two LED's
Four numbered tappets which are moved to set the time
the timer is required to switch ON and OFF
Timing Dial
Advance buttons
Hot Water slide button for OFF, TWICE A DAY,
ONCE A DAY, or CONSTANT
Timing mark, set the actual time of day against this mark
CENTRAL HEATING
HOT WATER
ADVANCE OFF TWICE ONCE 24Hr
SM2
Set Link
Switching Tappet No. Twice a Day Setting Once a Day Setting
One Heating/Hot Water on Heating/Hot Water on
Two Heating/Hot water off Tappet not in use
Three Heating/Hot Water on Tappet not in use
Four Heating/Hot Water off Heating/Hot Water off
Timer Setting
Programming the SM1 & SM2
Installation
Pol ution degree:l
2
Rated impulse volatge:
2.5 kV
Ball pressure test temperature:
85°C
No user maintenance should be attempted.
Designed for fixed wiring only to comply with current I.E.E. regulations.
0 °C to 45 °C Operating
2 (1) A 230V AC
230V AC +10% -15% 50 Hz
TECHNICAL DATA
PROGRAMMER
PROGRAMMER
PROGRAMMER
PROGRAMMERPROGRAMMER
Make
Make
Make
MakeMake Model
Model
Model
ModelModel
Drayton N L 1 2 3 4SM2
Drayton miGenie Wish 2 N L 1 2 3 4
Drayton MiTime MT721R, MiTime RF Pack 2 & Pack 3 N L 1 2 3 4
Drayton Lifestyle LP112, LP241, LP522, LP722, LP241Si, LP522Si, LP722Si N L 1 2 3 4
Drayton Tempus 3, 4, 6, 7 (Old models), Tempus 6, 7 N L 1 2 3 4
Switchmaser 400, 600 (No connection to terminal 4 on 600) N L 4 3 1
Switchmaser 805. 900, 900i N L 4 2 3 1
ACL MP (Towerchron) 2 1
ACL FP (Towerchron) 2 1 8 611 10
British Gas EMP2, UP1, UP2 N L 1 2 3 4
Danfoss CP15, CP715, FP15, FP715 ( Mkl8), CP715Si, FP715Si N L 1 2 3 4
3020P, 3060 E 7 6 4 2
4033 (link 1-6) E 7 6 5 3 4 2
102, 102E, 102E5, 102E7, (link 6-3) E 5 6 1 2
701 (link L-5 and 5-6) E N L 3 1
702 (link L-5 and 5-6) E N L 4 2 3 1
922, 972 (link L-2 and 2-5) E N L 1 4 3 6
SET2, SET2E, SET3E, SET3M, FP975, SET5 (link L-2 and 2-5) E N L 3 6 1 4
Honeywell ST699/799 (link L-5 and 5-8) N L 7 4 6 3
ST7100 (link L-3 and 3-6) N L 7 4 8 5
Horstmann
Myson
Microtimer (link L-5 and 5-8)
N L 7 4 6 3
MEP2C N L 1 2 3 4
Potterton Myson All EP2000's, EP3000's, Eo6000's, (link L-5 and N-N) N L 1 2 3 4
Mini Minder N L 1 2 3 4
Siemens/Landis & Staefa RWB2, RWB2E, 20, 40, 102, 200, 252 & 270, RWB9, RWB29 N L 1 2 3 4
Sunvic Select 207, SunPro 2000 N L 1 2 3 4
SP50, SP100 (link L-3) N L 1 4 2 5
Salus EP200, SP220 N L 1 2 3 4
Grasslin Towerchron DP72, QE2 N L 1 2 3 4
Sangamo M5, (link 1-6) N L 1 8
Ch3
Ch3
Ch3
Ch3Ch3 on
on
on
on on
Ch4
Ch4
Ch4
Ch4Ch4 on
on
on
on on
Ear
Ear
Ear
EarEarth
th
th
thth
Neu
Neu
Neu
NeuNeutra
tra
tra
tratral
l
l
ll
Liv
Liv
Liv
LivLive
e
e
ee
Ch1
Ch1
Ch1
Ch1Ch1 on
on
on
on on
Ch2
Ch2
Ch2
Ch2Ch2 on
on
on
on on
6 1 4
525, 527, 425 Diadem, H21, H27, H121, Tiara, (link L-2 and L-5), Channelplus
H21Xl, H27Xl, H27ZXL
NE L 3
3 4
ST6200, ST6300, ST6400, ST6450, ST6400S, ST9400A/C, ST9400S,
ST9500C, Y9420H RF
2
Pack 2, Y9420S RF
2
Pack 3, Y9520Z RF
2
Pack 5
N L 1 2
TIMESWITCH
TIMESWITCH
TIMESWITCH
TIMESWITCHTIMESWITCH
Make
Make
Make
MakeMake Model
Model
Model
ModelModel
Drayton SM1 N L 1 2 3 4
Drayton miGenie Wish 1 N L 1 2 3 4
Drayton MiTime MT711R, MiTime RF Pack 1 N L 1 2 3 4
Drayton Lifestyle LP111, LP711, LP111Si, LP711Si N L 1 2 3 4
Drayton Tempus 1 and 2 N L 1 3 2 4
Drayton Tempus 1 and 2 (Old models) N L 1 2 3 4
Switchmaster 300, 980 N L 4 1
ACL TC (Towerchron) 2 1 4 7
British Gas EMT2, UT1, UT2 N L 1 3 2 4
Danfoss TS15, 75 (Mkl8) E N L 1 4 5/62
TS715, TS715Si N L 1 4 2 3
TS975 E N L 5 4 6 1,2,3
SET1, SET1E E N L 5 4 6
SET4 E N L 5 4 6
103, 103E, 103E5, 103E7 4 5 6 3 1 2
911, 971 E N L 5 6 4 2
Honeywell
ST7000B N L 1 2 3 4
Horstmann
Centaur SC1, SC7 L 3 2
Channelplus H17XL, H11XL
E
N L 4 6
Centaur Plus C11, C17, C17-ZW N L 2 4 3
Emerald 423, pear Auto N L 2 4 3
517, Coronet, H11, H17 E N L 3 4
Myson
Microtimer (link L-5 and 5-8)
E N L 5 4 6
MEPIC N L 1 3 2 4
Potterton Myson EP4000, 4001, 4002, 5002 N L 5 4 2
Siemens/Landis Staefa RWB3 N L 4 3
RWB27, RWB30, RWB50, 100, 152, 170 N L 4 4 3
RWB7 E N L 2 4 3
Sunvic Select 107, SunPro1000 N L 1 3 2 4
SP20, SP35 N L 3 5 4 5
Salus EP101,SP120 N L 4 3
Grasslin Towerchron N L 2 4QE1
T2001, T2001Q E N L 7
Sangamo E 4 6 3 1M6
Smiths Centroller Mk1 & Mk2 N L 3 2
Centroller 30 1 2 3/4
Centroller 300, 980 N L 4 1
Venner Vennerette N LINELOADL
ST6100A, ST6100C, ST6100S, ST9100A/C, ST9100S, Y9120H RF
2
PACK 1, Y9120W RF
2
PACK
4
N L 241
Off
Off
Off
OffOff
Spare
Spare
Spare
SpareSpare
Earth
Earth
Earth
EarthEarth
Neutral
Neutral
Neutral
NeutralNeutral
Live
Live
Live
LiveLive
Common
Common
Common
CommonCommon
On
On
On
OnOn
These are typical wiring diagrams and can be used to help with wiring the SM2 into existing systems.
The arrowed numbers relate to terminals on the junction box. If the boiler has pump overrun, please consult the boiler man-
ufacturers handbook.
#
ROOM THERMOSTAT
RTS 4,6,9&10
RTS 1&2
# - LINK L-1 FOR 230V OUTPUT
5
4
2
1
3
3
1
NL
3
L
N
HCN
L
E
Gravity HW, Pumped CH with Room Stat
SET TO
Switched and Fused
3
2
1
E
N
L
LWC3
E
NL
01 11 21
98
6
5
432
1
JUNCTION BOX
PUMP
5
2
3
L
N
E
E
N
L
3
2
7
BOILER
For Pump overrun boilers consult
Manufactures instructions
Mid-Position Valve System
SET TO
4
6
1
2
4
3
2
1L
N
SM2 PROGRAMMER
8
#
ROOM THERMOSTAT
RTS 4,6,9&10
RTS 1&2
# - LINK L-1 FOR 230V OUTPUT
5
4
2
1
3
3
1N
L
3
L
N
H
C
N
L
E
LWC3
EN
L
01 11 21
9
8
4
3
1
JUNCTION BOX
E
N
L
3
2
7
BOILER
Switched and Fused
3
2
1
E
N
L
For Pump overrun boilers consult
Manufactures instructions
PUMP
7
2
3
L
N
E
8 6 7
1
C
2
H
C
S
CYLINDER THERMOSTAT
W GR OR BL YG
5
8 7
2 3
MID-POSITION VALVE
Spring-Return 2-Valve System
SET TO
4
6
1
2
43
21
L
N
SM2 PROGRAMMER
#
ROOM THERMOSTAT
RTS 4,6,9&10
RTS 1&2
# - LINK L-1 FOR 230V OUTPUT
5
4
2
1
3
3
1N
L
3
L
N
H
CN
LE
LWC3
E
N
L
01 11 21
987
4
2
1
JUNCTION BOX
E
N
L
3
2
7
BOILER
Switched and Fused
3
2
1
E
N
L
For Pump overrun boilers consult
Manufactures instructions
PUMP
7
2
3
L
N
E
8 6
1
C
2
H
C
S
CYLINDER THERMOSTAT
GR OR BR BL YG
1
7 5
2 3
CH VALVE
GR OR BR BL YG
1
7 8
2 3
DHW VALVE
4
7
1
2
43
21
LN
SM2 PROGRAMMER
LINK L – 1 FOR 230V OUTPUT. NO LINK REQUIRED FOR LOW VOLTAGE
ACTIONS A - Fit onto existing wall-plate, no wiring changes required.
B- Use existing wall-plate but move wires as indicated on the chart.
C- Fit new wall-plate and wire as indicated on the chart.
Using an EXISTING WALL – PLATE
Switch off the mains. Loosen the securing screws on the old programmer and unplug it. Check that there is 59mm clear-
ance to the right of the wall-plate and 28mm above.
These clearances are required for fitting purposes not operation.
Plug the control onto the wall-plate. Re-tighten securing screws. Check the fuse is 3A and switch on mains. Set timing
and programme as detailed in Programming section.
Fitting NEW WALL – PLATE provided
Installation should be carried out by a qualified electrician or heating engineer and must comply with current I.E.E.
Regulations for Electrical Equipment of Buildings and all other relevant standards.
Position the wall-plate with 59 mm clearance to its right, 28 mm above and access to the securing screws underneath (See
Diagram). Ensure that the supporting surface will fully cover the back of the programmer. The ideal location is 1.4 m
above
floor level, accessible, reasonably lit and free from condensation or extremes of temperature.
Fix the wall-plate, terminals at the top, either direct to a flat wall using wall plugs and No. 6 x 1” wood screws or on a flush
mounting single conduit box type UA1 (BS4662) using M3.5 x 14 screws. DO NOT use a surface mounting box.
Ensure the mains supply is switched off then make wiring connections as shown on this leaflet.
After wiring, plug in the control and tighten the securing screws. Check the fuse is 3A and switch on the mains. Set the
time and programme as detailed in Programming section.
Always switch off the mains before removing the time control from the wall plate. NEVER FIT THE PROGRAMMER TO
A LIVE WALL – PLATE.
Accessories
The DPT2 decoration plate can be used to cover damaged paint/wallpaper when replacing programmers of a larger size.
This should be fitted to the wall prior to the new Wall-plate being fitted. The decorative plate is 180x160mm. Full instruc-
tions are supplied with the DPT2.
The SBT2 spacer box can be used if the existing programmer has been used as a wiring centre and you require more
space behind
the unit. There is sufficient space for a 10 way 3 Amp terminal block.
CONFORMS TO THE ESSENTIAL REQUIREMENTS OF THE FOLLOWING DIRECTIVE
/EEC – Electromagnetic compatibility
/EEC - Low voltage directive
2011/65/EU - RoHS directive
Technical Helpline: +44 (0)
Website: www
Email: customer
Wall Plate Clearance
Dimensions
138
83
28
59
13
Screwdriver
Access
55
SM2
r
Wall -plate
HW CH HW CH
OFF ON
N L
1
2
3
CLOCK
4
N L
1 2 3 4
Dual Channel: SM2 Single Channel: SM1
COM OFF ON
Link L and 1 for
230 V output
Key for Room and Cylinder thermostat
C = Common N = Neutral
H = Call for Heat E = Earth
S = Satisfied L = Live
Wiring colour codes
GR = Grey RD = Red
Y = Yellow W = White
BK = Black OR = Orange
BL = Blue BR = Brown
Y/G = Yellow/Green
Dimensions & Wiring Diagrams
6490015-1 IssD
What is a programmer?
...an explanation for householders
Programmers allow you to set ‘On’ and ‘Off’ time
periods. Some models switch the central heating
and domestic hot water on and off at the same
time, while others allow the domestic hot water
and heating to come on and go off at different
times.
Set the ‘On’ and ‘Off’ time periods to suit your
own lifestyle. On some programmers you must also
set whether you want the heating and hot water to
run continuously, run under the chosen ‘On’ and
‘Off’ heating periods, or be permanently off.
The time on the programmer must be correct.
Some types have to be adjusted in spring and
autumn at the changes between Greenwich Mean
Time and British Summer Time.
You may be able to temporarily adjust the heating
programme, for example, ‘Override’, ‘Advance’or
‘Boost’. These are explained in the manufacturer’s
instructions.
The heating will not work if the room thermostat
has switched the heating off. And, if you have a
hot-water cylinder, the water heating will not work
if the cylinder thermostat detects that the hot
water has reached the correct temperature.
Relevant EC Directives:
Standards:
EN60730-1; EN60730-2-7
7
2
5
6
7
3
5 6

Produkt Specifikationer

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