Grasslin Towerchron QM1 Guida

Installation and user instructions

TOWERCHRON QM1 and QM2

OFF

http://waterheatertimer.org/Intermatic-timers-and-manuals.html#Talento-400

Safety Instructions ��3

What is a programmer? ��4

General installation instructions ��5

Specications ��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 qualied 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

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

Specications

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�

Fixing

Holes

Cable

Knockout Fixing

Screw

Earth

Terminal

Block

Backplate

L1234

“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”�

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

OFF

OFF TIMED CONST.

OFFON

OFF

Internal wiring diagram (QM1)

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 leaet� 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

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

It is important that you always refer to

the Boiler Manufacturers Instructions

concerning electrical wiring before using

the information contained in this leaet�

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

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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