Grasslin Towerchron QM1 Installation And User Instructions Manual
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Grasslin Towerchron QM1 Installation And User Instructions Manual

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TOWERCHRON QM1 and QM2
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Installation and user instructions
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Summary of Contents for Grasslin Towerchron QM1

  • Page 1 TOWERCHRON QM1 and QM2 Installation and user instructions...

  • Page 2: Table Of Contents

    What is a programmer? �����������������������������������������������������4 General installation instructions �����������������������������������������5 Specifications ��������������������������������������������������������������������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...

  • Page 3: Safety Instructions

    Safety Instructions Danger! Risk of electric shock! Connection and mounting must be performed by a professional electrician! WARNING • Installation must be carried out by a qualified electrician and conformed to current IEE Regulations! • Mains supply must be suitably fused (usually 3 amps) and provision made for Class A circuit disconnection�...

  • Page 4: What Is A Programmer

    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�...

  • Page 5: General Installation Instructions

    Fixing Maximum ambient 50° centigrade Knockout Screw temperature The TOWERCHRON QM1 and QM2 are both Type 1 action Type 1B double insulated so earth protection is not Micro disconnection required� However in the backplate a terminal for earth continuity is provided which should be used...

  • Page 6: Towerchron Qm1

    “TOWERCHRON QM1” Applications (QM1) • Any simple time switching application up to the stated rating� TIMED • Domestic heating system where both CONST. heating and hot water services are required to switch ON and OFF at the same time� • Controlling a “combi” or “combination...

  • Page 7: Programming Your "Towerchron Qm1

    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�...

  • Page 8: Internal Wiring Diagram (Qm1)

    Internal wiring diagram (QM1) • 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 leaflet�...

  • Page 9: Wiring Installation Instruction (Qm1)

    SWITCHMASTER SRT2 5 1 3 2 systems� The link wire L-3 must be fitted by the SUNVIC TLX2259 E 4 3 1 installer� TOWERCHRON QM1 is ideally suited for controlling combination boilers� The following basic circuit diagrams apply for the range indicated�...
  • Page 10 Important note: It is important that you always refer to QM1 Terminals the Boiler Manufacturers Instructions concerning electrical wiring before using 220-240V AC the information contained in this leaflet� 50 Hz room stat FUSED In some cases the Boiler Manufacturers...
  • Page 11 Saunier Duval SD 625M see special circuit Vaillant VCW 20/1 T3W Vaillant VCW 25/1 T3W Vaillant VCW Sine 18 T3W Vaillant VCW GB 182 EH Vaillant VCW GB 242 EH Vokera 18/72 MCF Vokera 21/84 MCF Vokera 21/84 TURBO Vokera 18/72 DMCF Vokera 21/84 DMCF Vokera 21/84 DC TURBO Vokera 20/80 RS TURBO...
  • Page 12 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� Boiler with timeswitch and room thermostat...

  • Page 13: Towerchron Qm2

    “TOWERCHRON QM2” Applications (QM2) • Fully pumped central heating systems using mid position valves, spring TIMED return valves or “power open”, CONST. “power closed” valves� • Gravity hot water, pumped heating systems with or without motorised valves fitted into the domestic hot CONST.

  • Page 14: Programming Your "Towerchron Qm2

    Programming your “TOWERCHRON QM2” 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�...

  • Page 15: Internal Wiring Diagram (Qm2)

    Internal wiring diagram (QM2) • Carry out wiring installation using appropriate diagram as shown� • Plug in unit and secure to the base by tightening fixing screw� 220/240V AC 50 Hz fused 3A...

  • Page 16: Wiring Installation Instruction (Qm2)

    Wiring installation instruction (QM2) Gravity Hot Water / Pumped Heating - System with Room Stat to Control Pump • With the above system, the following TOWERCHRON QM2 combination can not be selected on the slide N L 1 2 3 4 switches: ROOMSTAT –...
  • Page 17 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 ROOMSTAT EARTH EARTH NEUTRAL NEUTRAL LINE COMMON...
  • Page 18 Fully Pumped System using 2 Port Spring Fully Pumped System using 3 Port Return Mid-Position Valve TOWERCHRON QM2 TOWERCHRON QM2 220-240V 220-240V L 1 2 3 4 L 1 2 3 4 50HZ 50HZ main fused main fused 3 AMP 3 AMP ROOMSTAT ROOMSTAT...
  • Page 19 Conversion Chart for different Room / Cylinder Thermostats Cylinder Stats Room Stats E N C TOWER CS1 TOWER SS E 4 1 2 ACL HTS 2 TOWER RS E 4 1 3 DRAYTON CS1 E 1 2 3 ACL TS 142 E 4 1 2 HONEYWELL L641 A C 1 2...
  • Page 20 Grässlin GmbH Bundesstraße 36 D-78112 St� Georgen Germany Phone: +49 (0) 7724 / 933-0 Fax: +49 (0) 7724 / 933-240 www�graesslin�de 80�10�0791�7/07/11/03 - 11/0036 info@graesslin�de...

This manual is also suitable for:

Towerchron qm2

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