TFC Group Towerchron QE2 User Manual

INSTALLATION AND USER INSTRUCTIONS

TOWERCHRON QE1/QE2

80.10.0662.7/07/11/02 - 11/00025

Congratulations. You are the proud owner of a new GRÄ SSLIN TOWERCHRON QE. We recommend that you read
the operation instructions carefully so that you can make the best use of all features offered by this product.

QE1

QE2

TECHNICAL DATA

Dimensions 156x85x42 [mm]
Power supply 240V/50Hz
Rating 5A (2A)/240V, per channel
Memory locations 28 per channel
Battery permanently fixed re-chargeable (not replaceable)
Battery reserve 500 hours plus (after 70 hours charge)
Installation double insulated
Fitting surface mounted or single gang plaster depth socket outlet
Maximum ambient temperature 50 °C
Type 1 Action type 1B
Micro disconnection type 1B
Pollution protection normal pollution situation

INSTALLATION PROCEDURE

Remove QE1/QE2 from packing and prepare it for use on fully pumped or for gravity hot water systems.

Remove QE1/ QE2 from packing and prepare it for use on fully pumped or for gravity hot water systems.

d.

For gravity systems the switch
located at the rear of the QE2

For fully pumped systems the switch

must be moved to the left - into

located at the rear of the “QE2” must

the gravity position

be moved to the right-
into the “fully pumped” position.

For “fully pumped systems” the
switch must be positioned to the
right of the slot.
(when viewed from the rear)

Slot

NB • Installation must be carried out by a qualified electrician and conform to current IEE Regulations.
NB • Mains supply must be suitably fused (usually 3 amps) and provision made for Class A circuit disconnection.

Switch

NB • Control is suitable for fixed wiring only.
NB • If the unit is to be surface wired:

- Remove backplate by slackening fixing screw and separate the plate from the timeswitch

- Remove the knock-out from the backplate and the timeswitch

- Screw backplate to wall with counter sunk No. 8. Wood screws, using fixing holes provided.

NB • For socket box mounting:

- Use the centre two holes and fit backplate to box using machine screws

- To ensure clearance for the down flap, ensure that there is a minimum of 4 cm clearance
under the unit when mounted

TABLE OF CONTENTS

“TOWERCHRON QE1”

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Programming your “TOWERCHRON QE1”

Setting current time and day . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Start the inbuilt standard program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
View the inbuilt standard program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Setting your own time program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-6
View/modify/delete your entered program selections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Manual override functions (boost, advance, constant, OFF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
General installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Internal wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Wiring installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 - 15

TABLE OF CONTENTS

“TOWERCHRON QE2”

Applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Programming your “TOWERCHRON QE2”

Setting current time and day . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Start the inbuilt standard program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
View the inbuilt standard program . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19, 20
Setting your own heating/hot water program

1. Setting your own heating times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Both heating and hot water will be turned ON and OFF at the same time . . . . . . . . . . . . . . . . . . . 22, 23
Heating and hot water will be turned ON and OFF at different times . . . . . . . . . . . . . . . . . . . . . . 24, 25

2. Setting your own hot water times . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26, 27
View/modify/delete your entered program selections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28, 29
Manual override functions (boost, advance, constant, OFF) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30, 31
General installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32
Internal wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Wiring installation instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34- 37

Open here, if you are programming Towerchron QE1.

8

“ TOWERCHRON QE1”

1

APPLICATIONS (QE1)

• Any simple time switching application up to
the stated rating

• Domestic heating systems 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 QE1”

SETTING CURRENT TIME AND DAY

 Open the keypad cover
 Make sure that the slide switch is on position “SET TIME AND DAY” to left.

If the battery is in a fully discharged condition at the moment of installation
then the screen will be blank. The screen will start to display approximately
2 minutes after plugging into mains supply. Now operate the “RESET” button.

 Press the “RESET” button with a dull pointed instrument once
 Press the “DAY” button until the actual day is marked
 Repeatedly press “HOUR +/-”, then “MINUTES +/-” buttons until

current time is displayed.

NB • If you are setting the clock in wintertime (GMT): The clock is now

correctly set.
If you are setting the clock in summertime (BST): Press
the “SUMMER/WINTER” button once. The arrowhead at the bottom
of the display moves to indicate Summertime, and the clock is
correctly set.

2

START THE INBUILT STANDARD PROGRAM

 Move the slide switch to position “RUN PRESET PROGRAM”.

NB • The inbuilt standard program is now active.

3

VIEW THE INBUILT STANDARD PROGRAM

 Make sure that the slide switch is on position “RUN PRESET PROGRAM”.

 Repeatedly press the “VIEW PRESET” button

NB • Each press displays, one step at a time, the ON and OFF times for

heating and hot water. Standard program is shown in the table.

ON OFF ON OFF
Monday to Friday 6.30 a.m. 8.30 a.m. 4.30 p.m. 10.30 p.m.
Saturday to Sunday 8.00 a.m. 11.00 a.m. 4.00 p.m. 11.00 p.m.

To return to time of day

 Press the “CLEAR” button
 The preset programm is activated

4

SETTING YOUR OWN TIME PROGRAM

It is recommended that you write down the switching times.
The following day groups are selectable: Mon...Fri, Sat + Sun, Mon...Sat,
Mon...Sun or any individual day.
 Move the slide switch to position “SET OWN PROGRAM”

1. To set “ON” time and day combination:

 Press “HOUR +/-” then “MINUTES +/-” buttons
 Press “DAY” button to select day/day groups

2. To store “ON” time and view the next program space
 Press the “SELECT” button

3. To set the first “OFF” time and day combination
 Press “HOUR +/-” then “MINUTES +/-” buttons

(the day/day groups that were selected during “ON” time
programming are still in memory for this “OFF” time)

5

4. To store “OFF” time and view the next program space
 Press “SELECT” button

Repeat steps 1 to 4 to enter further “ON” and “OFF” times.
28 program spaces are available.

After completing your own program:

 Move the slide switch to position “RUN OWN PROGRAM”

NB • The current time is displayed and your own

program is now active.

6

VIEW/MODIFY/DELETE YOUR ENTERED PROGRAM SELECTIONS

 Move the slide switch to position “ SET OWN PROGRAM”

To view/modify your entered ON/OFF times:
 Press the “ SELECT” button repeatedly

NB • While you are viewing any program selection, you can modify the

contents with the “DAY”, “HOUR” and “MINUTES” button.

To delete your entered ON/OFF times:

 Press the “ SELECT” button repeatedly until the desired ON or OFF

time to be deleted appears.

 Press the “ CLEAR” button. The selection displayed will be deleted.

To return time of day:

 Move the slide switch to “ RUN OWN PROGRAM”

7