Grasslin Towerchron QM1 Guida
Installation and user instructions
EN
TOWERCHRON QM1 and QM2
2
ON
OFF
http://waterheatertimer.org/Intermatic-timers-and-manuals.html#Talento-400
2
Safety Instructions �������������������������������������������������������������3
What is a programmer? �����������������������������������������������������4
General installation instructions �����������������������������������������5
Specications ��������������������������������������������������������������������5
“TOWERCHRON QM1” ������������������������������������ 6
Applications (QM1) ������������������������������������������������������������6
Programming your “TOWERCHRON QM1” ��������������������������7
Internal wiring diagram (QM1) �������������������������������������������8
Wiring installation instruction (QM1)�����������������������������������9
“TOWERCHRON QM2” ���������������������������������� 13
Applications (QM2) ����������������������������������������������������������13
Programming your “TOWERCHRON QM2” ������������������������14
Internal wiring diagram (QM2) �����������������������������������������15
Wiring installation instruction (QM2)���������������������������������16
Table of Contents
EN 3
Safety Instructions
• Installation must be carried out by a qualied electrician and conformed to current IEE Regulations!
• Mains supply must be suitably fused (usually 3 amps) and provision made for Class A circuit
disconnection�
• Control is suitable for xed wiring only�
• If the unit is to be surface wired:
– Remove backplate by slackening xing screw and separating plate and timeswitch�
– Remove the knock out from the backplate and the timeswitch�
– Screw backplate to wall with counter sunk number 8� (Wood screws using xing holes provided�)
• For switch mounting:
– Use the centre two holes and x backplate to box using machine screws�
– To ensure clearence for the down ap, ensure that there is a minimum of 4 cm clearance under the
unit when mounted�
Danger! Risk of electric shock!
Connection and mounting must be performed by a professional electrician!
WARNING
4
What is a programmer?
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�
GBEN 5
Specications
Installation double insulated
Rating 5 amps (2 amps) at 240
volts 50 hertz
Fitting surface mounted or to a
single gang plaster depth
socket outlet
Dimensions 156 x 85 x 42
Maximum ambient
temperature
50° centigrade
Type 1 action
Micro disconnection
Type 1B
Pollution protection Normal pollution situation
General installation instructions
The TOWERCHRON QM1 and QM2 are both
double insulated so earth protection is not
required� However in the backplate a terminal for
earth continuity is provided which should be used
if earth conductors are present in your cable�
Make sure that the earth conductors are sleeved
to prevent accidental contact with live parts�
N
Fixing
Holes
Cable
Knockout Fixing
Screw
Earth
Terminal
Terminal
Block
Backplate
L1234
6
“TOWERCHRON QM1”
Applications (QM1)
• Any simple time switching application
up to the stated rating�
• Domestic heating system where both
heating and hot water services are
required to switch ON and OFF at the
same time�
• Controlling a “combi” or “combination
boiler”�
ON
OFF
OFF TIMED CONST.
EN 7
Programming your “TOWERCHRON QM1”
Setting time of day
Rotate the minute hand of the clock until the arrowhead in clock
face aligns with the correct time on the outer dial, i�e� 8 = 8�00 a�m�,
14 = 2�00 p�m�
Setting ON/OFF times
Move all tappets between ON and OFF times required to outer
position� The minimum switching time is 15 minutes�
Set any other ON/OFF periods in a similar manner
Slide switches (under drop down cover)
Pull top edge of drop down cover to gain access to slide switch�
The slide switch provide following functions:
– OFF service off completely
– TIMED service comes on between ON and OFF periods as set
on tappets on clock face
– CONST� service is on continuously
ON
OFF
OFF TIMED CONST.
OFFON
ON
OFF
8
Internal wiring diagram (QM1)
N
=~
L
OFF ON
1 2 3 4
• Carry out wiring installation using appropriate diagram as shown�
• When the TOWERCHRON QM1 timeswitch is to be used with a combination boiler, always refer to the
boiler manufacturers instructions concerning electrical wiring before using the information contained
in this leaet� In some cases the boilers manufacturers instructions will contain information regarding
removal of certain link wires and will always indicate the fuse rating for the mains electrical supply�
• Plug in unit and secure to the base by tightening xing screw�
EN 9
Simple circuit for for domestic central heating
boiler with gravity fed hot water supply
This diagram is correct for mains operated
systems� The link wire L-3 must be tted by the
installer�
TOWERCHRON QM1 is ideally suited for controlling combination boilers� The following basic circuit
diagrams apply for the range indicated�
Room stat conversation chart
Wiring installation instruction (QM1)
N L
D S
neutral
room stat
D = demand
S = satisfy
neutral
220/240V
50 Hz AC
main supply
boiler pump
1 2 3 4
TOWER SS
E
E
N
4
C
O
M
1
D
E
M
2
S
A
T
TOWER SSTRS E 4 1 3
ACL TS 142 E 4 1 2
DRAYTON RTE E 4 1 2 3
HONEYWELL T 6160B 2 1 3 4
LANDIS&GYR RAD 5 4 6 2
SWITCHMASTER SRT2 5 1 3 2
SUNVIC TLX2259 E 4 3 1
10
It is important that you always refer to
the Boiler Manufacturers Instructions
concerning electrical wiring before using
the information contained in this leaet�
In some cases the Boiler Manufacturers
Instructions will contain information
regarding removal of certain link wires
and will always indicate the fuse rating
for the main electrical supply�
Important note:
Combination Boiler Model
Chaffoteux Celtix 2�20 OFF N PH 7 6
FIM Leblanc GVM 420 see special circuit
Glowworm Fuelsaver N L 8 7
Ravenheat N L C D
Saunier Duval SD 620 F N L 2 3
Saunier Duval SD 123C N L 2 1
Saunier Duval SD 235C N L 2 1
Saunier Duval SD 135C N L 2 1
N
D S
room stat
D = demand
S = satisfy
QM1 Terminals
220-240V AC
50 Hz
FUSED
SUPPLY
L 1 2 3 4
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