TFC Group Towerchron QM2 User Manual

TOWERCHRON QM1 and QM2

EN

Installation and user instructions

OFF

ON

2

Table of Contents

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

2

Safety Instructions

Danger! Risk of electric shock!



WARNING

• 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�

Connection and mounting must be performed by a professional electrician!

EN

3

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�

4

General installation instructions

Backplate

Fixing Screw

Terminal Block

Earth Terminal

N

L 1 2 3 4

Fixing Holes

Cable Knockout

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�

GBEN

Specications

Installation double insulated

Rating 5 amps (2 amps) at 240

Fitting surface mounted or to a

Dimensions 156 x 85 x 42

Maximum ambient temperature

Type 1 action Micro disconnection

Pollution protection Normal pollution situation

volts 50 hertz

single gang plaster depth socket outlet

50° centigrade

Type 1B

5

“TOWERCHRON QM1”

OFF

ON

6

Applications (QM1)

• Any simple time switching application

TIMED

OFF

CONST.

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”�

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

EN

OFF

TIMED

OFF

ON

OFFON

CONST.

7

Internal wiring diagram (QM1)

=

~

N

L

1 2 3 4

OFF ON

• 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�

8

Wiring installation instruction (QM1)

Simple circuit for for domestic central heating boiler with gravity fed hot water supply

220/240V 50 Hz AC main supply

N L

1 2 3 4

boiler pump

neutral

room stat

D S

D = demand S = satisfy

neutral

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�

EN

Room stat conversation chart

EEN4C

O

M

TOWER SS

1 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

D

S

E

A

M

T

2

9

Important note:

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

220-240V AC 50 Hz FUSED SUPPLY

regarding removal of certain link wires and will always indicate the fuse rating for the main electrical supply�

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

10

QM1 Terminals

N

L 1 2 3 4

room stat

D S

D = demand S = satisfy

Saunier Duval SD 625M see special circuit Vaillant VCW 20/1 T3W 1MP 2R 3 4 Vaillant VCW 25/1 T3W 1MP 2R 3 4 Vaillant VCW Sine 18 T3W 1MPN2R

Vaillant VCW GB 182 EH 1 2 3 4 Vaillant VCW GB 242 EH 1 2 3 4 Vokera 18/72 MCF N L 4 5 Vokera 21/84 MCF N L 4 5 Vokera 21/84 TURBO N L 4 5 Vokera 18/72 DMCF N L 3 4 Vokera 21/84 DMCF N L 3 4 Vokera 21/84 DC TURBO N L 3 4 Vokera 20/80 RS TURBO N L 3 4 Worcester Heatslave Senior 12 N L 2 4 Worcester Heatslave Senior 20430 N L 2 4 Worcester Heatslave Senior 6 N L 2 6 Worcester Heatslave 9-24 RSF N L 1 2 Worcester Heatslave 9-24 BF N L 1 2 Worcester Heatslave 9-24 OF N L 1 2 Worcester Heatslave High Flow BF N L 2 2 Worcester Heatslave High Flow OF N L 2 3

EN

L

Boiler Terminal Numbers

3 4

11

Saunier Duval SD625M

Always use special 24V thermostat supplied with this boiler, and wire as indicated in boiler instructions substituting time switch terminals A and B for terminals 3 and 4 respectively on QM1�

Elm Leblanc GVM 420Boiler with timeswitch and room thermostat

220/240V

50 Hz AC

main supply

room stat

N

COM�

D

D = demand S = satisfy COM = common

boiler terminals

1L 2 3 4

S

frost protection thermostat (if required)

240V 3 AMP fused supply

L

boiler connection box

12

timeswitch

E NLBA

J

1

N

E

342

6

5

ground

240V 3 AMP fused supply

thermostat

CKD H

N

L

“TOWERCHRON QM2”

OFF

ON

CH

TIMED

OFF

HW

CONST.

CH

HW

CONST.

TIMED

• Fully pumped central heating systems using mid position valves, spring return valves or “power open”, “power closed” valves�

• Gravity hot water, pumped heating systems with or without motorised valves tted into the domestic hot water primary circuit�

• Unit, as supplied is suitable for gravity hot water systems� For use on pumped primary systems, separate the backplate from the unit by slackening the securing screw and remove the red pin in the back of the programmers chassis�

Applications (QM2)

EN

13

Programming your “TOWERCHRON QM2”

OFF

CH

TIMED

CONST.

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 switches� Two switches are provided, one for heating, the other for hot water� Depending on system installed, each switch provides 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

14

OFF

TIMED

OFF

ON

OFFON

CONST.

CH

HW

CONST.

Internal wiring diagram (QM2)

N L

220/240V

AC 50 Hz fused 3A

1 2 3 4

HW OFFCHOFFHWONCHON

• Carry out wiring installation using appropriate diagram as shown�

• Plug in unit and secure to the base by tightening xing screw�

EN

15

Wiring installation instruction (QM2)

Gravity Hot Water / Pumped Heating - System with Room Stat to Control Pump

• With the above system, the following combination can not be selected on the slide switches:

– Heating TIMED, hot water off – Heating CONST, hot water off – Heating CONST, hot water timed

• Fully pumped systems

– Remove red pin (see applications

TOWERCHRON QM2)

EARTH NEUTRAL LINE

BOILER SWITCHED LIVE

REFER TO BOILER MANUFACTURER INSTRUCTIONS

TOWERCHRON QM2

N L 1 2 3 4

N

ROOMSTAT

EARTH NEUTRAL COMMON DEMAND

PUMP EARTH

NEUTRAL LINE

The following wiring diagrams are schematic only (for clarity the earth and neutral connections are omitted)� We suggest when wiring systems a suitable wiring centre is used (the Tower Controls wiring centre is purpose made and gives full information for wiring this programmer into systems using compatible equipment)�

16

Gravity Hot Water / Pumped Heating System - Two Port Valve in D�H�W� with Room and Cylinder Stats

Note: Only valves with “change over“ end switches are suitable�

TOWERCHRON QM2

N L 1 2 3 4

EARTH NEUTRAL LINE

CYLINDER STAT EARTH

COMMON DEMAND

VALVE GREEN/YELLOW

BLUE BROWN GREY WHITE ORANGE

N

ROOMSTAT

EARTH NEUTRAL

N

COMMON DEMAND

PUMP EARTH

N

NEUTRAL LINE

BOILER SWITCHED LIVE

REFER TO BOILER MANUFACTURER

EN

17

Fully Pumped System using 2 Port Spring Return

Fully Pumped System using 3 Port Mid-Position Valve

220-240V 50HZ main fused 3 AMP

EARTH NEUTRAL LINE

HEATING VALVE GREEN/YELLOW

BLUE BROWN WHITE or GREY BLACK or ORANGE

HOT WATER VALVE GREEN/YELLOW

BLUE BROWN WHITE or GREY BLACK or ORANGE

18

TOWERCHRON QM2

E

N

L 1 2 3 4

ROOMSTAT

EARTH NEUTRAL

N

COMMON DEMAND

CYLINDERSTAT EARTH

COMMON SATISFIED DEMAND

PUMP LINE

N

NEUTRAL EARTH

BOILER SWITCHED LIVE

REFER TO BOILER MANUFACTURER INSTRUCTIONS

TOWERCHRON QM2

220-240V 50HZ main fused 3 AMP

EARTH NEUTRAL LINE

MID-POSITION VALVE * GREEN/YELLOW

BLUE WHITE or BROWN GREY ORANGE

BOILER SWITCHED LIVE

REFER TO BOILER MANUFACTURER INSTRUCTIONS

* TOWER MP322C ACL 697B340 DRAYTON FLOW SHARE 2

E

N

L 1 2 3 4

ROOMSTAT

EARTH NEUTRAL

N

COMMON DEMAND

CYLINDERSTAT EARTH

COMMON SATISFIED DEMAND

PUMP LINE

N

NEUTRAL EARTH

HONEYWELL V4073A LANDIS & GYR SK 3L SUN VIC SD 1701

Conversion Chart for different Room / Cylinder Thermostats

Cylinder Stats Room Stats

E C

D

S

O

E

A

M

T TOWER CS1 ACL HTS 2 DRAYTON CS1 E 1 2 3 HONEYWELL L641 A C 1 2 LANDIS&GYR RAM 21 1 2 3 SWITCHMASTER SCT 1 2 3 SUNVIC SA 2451 E 3 1 2

RED

BLK

YEL

TOWER SS E 4 1 2 TOWER RS 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 2 SWITCHMASTER SRT2 5 1 3 SUNVIC TLX2259 E 4 3 1

E N C

D

S

O

E

A

M

T

EN

19

80�10�0791�7/07/11/03 - 11/0036

Grässlin GmbH

Bundesstraße 36

D-78112 St� Georgen

Germany

Phone: +49 (0) 7724 / 933-0 Fax: +49 (0) 7724 / 933-240

www�graesslin�de info@graesslin�de

TFC Group Towerchron QM2 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual