TEC 100 Manuale utente

TEC 100/200 Programming

& Installation Manual

As of software v7.2

Total Energy Controls

Contents

Description Page

Installation Instructions

GeneralNotes 3

MainsWiring 3

Control Wiring 4

Other Wiring Options 5

Fitting and Wiring Temperature Sensors 6

Temperature Display Calibration 8

Commissioning Instructions

Introduction 9

Keypad Overview 9

Establishing the System Max Flow Temp 11

Setting the Programs 12

Setting the Calendar 12

Programming the On / Off Times 14

Frequency (How the Time Clock works) 16

SelectDays 17

OptimiseOnTime 18

Optimise Off Time 19

Setting the Maximum Flow Temperature 20

Setting the Minimum Flow Temperature 21

Setting the Minimum Return Temperature 22

Setting the Mid Temperature 23

Setting the Night Temperature 24

Setting the Frost Temperature 25

Setting the External Cut-Off Temperature 26

The Plant Relay 27

HotWaterPriority 28

Internal / External Optimisation 29

Calibration 30

Rotation 32

Exiting Programming Mode 33

TEC 100/200 with Monitoring Socket

Monitor Installation and Operation 34

Installation

General Notes

The installation of all TEC units should be carried out by a qualified electrical

engineer familiar with heating systems and control wiring.

All control circuits of TEC units are ‘volt free’ and may be used to switch

240V AC or low voltage control systems.

Extreme care must be taken to ensure that all wiring is correct before applying

power, as irrepairable damage to the PCB could result due to incorrect

connections.

Mains Wiring

Unscrew the four screws of the TEC 100/200 and remove the lid to gain access

to the PCB and wiring connections.

A 240V AC 1Ph 50Hz supply may be taken from the existing time clock

switched or permanent supply, or direct from the boiler mains input connections

(where available), which ever is the most suitable. The 240V connection to the

TEC 100/200 is shown in Fig.1 below.

240 V Supply as described

TEC 100/200 PCB

Fig. 1

Control Wiring

NOTE: If a wiring harness is provided in the rear of the enclosure please

follow cables to TEC 100/200 PCB to determine connections as described in

the following sections.

Many boilers are provided with an accessible mains terminal block. Most

have a pair of connections (usually unused) for use with external controls.

These connections will have a link which needs to be removed so that the

TEC 100/200 control wires can be connected as shown in Fig.2.

TEC 100/200 PCB

NL E

Remove link

To boiler 2

(

TEC 200

)

To boiler

If the boiler is a simple

permanent pilot type, i.e.

Ideal Concord, Potterton,

Kingfisher etc, the

connections may be made

into the mains supply of

the boiler if more

convenient.

Fig. 2

Note: A 5-core heat resistant flex is ideal for connecting the TEC 100/200 to the

boiler. The recommended connection method is via a flexible nylon

conduit to house the cable.

Where a terminal block arrangement as shown in Fig.2 is not available, the

control wiring should be connected directly into the boiler thermostat wiring

as shown in Fig.3.

TEC 100/200 PCB

Boiler Thermostat

Boiler 2 (TEC200):

Connections as per

Boiler 1

NL E

Live in

Live to Burner

Fig. 3

Other Wiring Options

The TEC 100/200 has three control relays. On the TEC 100 the left hand relay

is the Plant Relay which may be used to control a circulating pump and the

right hand relay is the boiler control circuit. The centre relay (Tec 100 only)

make and breaks on RTN/HW settings and may be used to control a HW pump,

solenoid etc, see Fig 4. On the TEC 200 the left hand relay is the Plant Relay,

the middle relay is boiler 2 control circuit and the right hand relay is boiler 1

control circuit.

Pump

TEC 100/200 PCB

NL E

1P 2

Make on

RTN/HW

temperature

drop.

Neutral

Live

Fig. 4

Fitting and Wiring Temperature Sensors

The TEC 100/200 has three temperature sensor inputs, these being Flow,

Return/Hot Water and External. Connections are as shown in Fig.5.

FLOW Sensor

TEC 100/200 PCB

AuxExtnFlow Retn

P 2 1 N E

EXTERNAL Sensor

RETURN / HW Sensor

Fig. 5

Flow / Return Temperature Sensors (Cable Type)

Using heat resistant cloth tape, tightly strap the sensors to the relevant

flow and return pipes, close to boiler, before any branching connections.

Cover the sensors with heating pipe insulation and strap with ty-wraps or

similar. See Fig.6.

Heat Resistant Cloth Tape Sensor Head

Securing Ty-Wraps

Pipe Insulation fixed over Sensor

Flow / Return Pipe

Fig. 6

Optional Hot Water Tank Sensor connections (replaces Return Temperature

Sensor) are shown in Fig.7.

Fix Tank Sensor

with expanding

wire (supplied

with optional

Tank Sensor).

TEC 100/200 Return

Temperature Sensor

Optional HW Tank Sensor.

Connect in place of Return

Temperature Sensor.

Mount 1/3 to 1/2 way up

tank.

Fig. 7

If the hot water tank is a distance from the boiler, wiring to it may be

impractical.

If hot water priority is important then the Return Sensor should be fitted

to the Hot Water Tank Return Pipe. If this is also impractical, then fit

as normal to the main Return Pipe and set the Minimum Return

Temperature to provide an adequate level of hot water supply.

Where the tank option is used, set the Minimum Return Temperature

to the stored water temperature requirement.

External Sensor

The External Sensor should preferably be positioned on a north facing

exterior wall, and connected to the appropriate terminals of the TEC 100/200.

If it is not possible to mount the sensor on a north facing wall, then mount

in a shaded position, under eaves, and away from boiler house vent grilles etc.

Note A special reflective, insulated external sensor is available when fitting

in a position where solar heat is unavoidable.

Temperature Display Calibration

When required, the temperatures as displayed on the TEC 100/200 may be

adjusted to cater for heat losses on pipework, losses on external temperature

sensor etc. Program 17 (see page 30) can be used to calibrate the temperature

display by -10ºC/+20ºC.

ommissioning - Introduction

The TEC 100/200 Digital has 18 main programs, these being:

1. Calendar

2. On/Off Times (Two On/Off Periods per day)

3. Frequency (Once, Twice, 24 Hours)

4. Select Days (Every Day, Weekends, Week Days)

5. Optimise On Time ( 0 to 240 minutes)

6. Optimise Off Time ( 0 to 240 minutes)

7. Maximum Flow Temperature (30ºC to 85ºC)

8. Minimum Flow Temperature (25ºC to 85ºC)

9. Minimum Return Temperature (20ºC to 65ºC)

10. Mid Temperature (0ºC to 85ºC)

11. Night Temperature (0ºC to 85ºC)

12. Frost Temperature (0ºC to 35ºC)

13. External Cut Off Temperature (0ºC to 35ºC)

14. Differential (1ºC to 5ºC)

15. Hot Water Priority (Yes / No)

16. Internal/External Optimisation (Yes / No)

17. Calibration (-10ºC/+20ºC)

18. Rotation (Yes / No)

Certain Differentials and the Compensation Slope are fixed within the software,

i.e. Return Temp 2ºC, External Temp 2ºC, Compensation Slope 1.5.

Keypad and Running Mode Overview

Used to enter Programming Mode from normal running mode,

and to access Change Mode for the selected program.

PROGRAM

Used to cycle through the program list when in Programming

SELECT

Mode and to change program settings when in Change Mode.

Used to cycle through the program list when in Programming

Mode and to change program settings when in Change Mode.

RETURN

E Used to confirm a programming change and to exit from the

Programming Mode.

ENTER

The TEC 100/200 will go into Boost mode from a cold BOOST

S57 F20 R20 E12

start. It will stay in this mode for 15 minutes, or

until the Return Temp is within10ºC of the Flow

Temp If a Hot Water Sensor is fitted then the

TEC 100/200 will go into Boost mode if the HW Tank

is cold.

FIRING

S57 F50 R42 E12

Firing mode indicates that the boiler is firing.

Temp Set indicates that the actual Flow Temp is

above the system set temperature**. The boiler will TEMPERATURE SET

S57 F59 R53 E12

not be firing at this point.

Economising indicate that the TEC 100/200 has entered ECONOMISING

S57 F59 R53 E12

self learning mode and is making economies. The

boiler will not be firing at this point.

EXT

S57 F36 R34 E16

Ext ‘flashing’ indicates that the external temp

is above the level set in the Ext Cut-Off program.

** The system set temperature as indicated in the display, represents the

heating system aiming temperature based on current climatic conditions,

as determined by the TEC 100/200’s weather compensation circuitry.

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