Riello Thermital TBOX BASIC ACS Technical manual

TBOX BASIC ACS
USE, INSTALLATION AND
MAINTENANCE MANUAL

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Lecco, 18th January 2012
The company
Riello SpA Heating Products Direction
Via Risorgimento 13
23900 Lecco
ITALY
hereby declares that the control panels bearing the brand: THERMITAL
models:
TBOX CLIMA COMFORT, TBOX CLIMA TOP, TBOX CLIMA MIX,
TBOX BASIC and TBOX BASIC ACS
conform to European Directive 2004/108/EC (Electromagnetic Compatibility), to European Directive
2006/95/EC (Low Voltage) and to the following European standards:
EN 60730-1:2000 Automatic electrical controls for household and similar use.
EN 60730-2-9:2000 Part 2: Particular requirements for temperature sensing controls.
EN 60529:1992 Specication for degrees of protection provided by enclosures (IP code).
EN 61000-6-2:2001 Electromagnetic compatibility. Immunity per industrial environments.
EN 61000-6-3:2001 Electromagnetic compatibility. Emission standard for residential, commercial
and light-industrial environments.

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Dear heating engineer,
Congratulations on having chosen a TBOX control panel. You have selected a modern, quality
product that is designed to give dependable, efficient and safe service and to provide comfort in
the home for many years to come. This manual provides information that is essential to the instal-
lation of the appliance. Used in conjunction with your own knowledge and expertise it will enable
you to install the appliance quickly, easily, and correctly.
Once again, please accept our thanks and our congratulations on your choice of product.
THERMITAL
MODEL CODE
TBOX BASIC ACS 20017207
RANGE

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CONTENTS
General Safety Information 5
Precautions 5
Product description 6
Identification 6
Technical specifications 7
Accessories 7
Unpacking the product 8
Dimensions and weight 8
Installation 9
Accessing internal components 11
Electrical connections 12
Positioning the sensors 13
Wiring diagrams 14
Layout 15
Description of functions 16
Useful information 18
This manual, Code 20020619 - Rev. 5 (04/17) is made
up of 20 pages.
The following symbols are used in this manual:
b = Identifies actions that require caution and ade-
quate preparation.
a = Identifies actions that you MUST NOT do.

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The operation of any appliance that uses electrical power demands that a number of fundamental safety precautions
be respected. In particular:
bCheck that the product is complete and undam-
aged as soon as you remove it from its packaging.
Contact the THERMITAL reseller from whom you
purchased the product if you notice any problems.
bThis product must be installed by a legally qualified
heating engineer. (In Italy heating engineers are
regulated by law no. 37 of the 22/01/2008.) On com-
pletion of the installation, the installer must issue the
owner with a declaration of conformity confirming
that the installation has been completed to the high-
est standards in compliance with the instructions
provided by THERMITAL in this instruction manual,
and that it conforms to all applicable laws and stand-
ards.
bThis control panel is designed and made for use with
boilers generating hot water up to 110°C, and must
be used exclusively for this purpose and within its
specified performance limits.
bThe manufacturer declines all responsibility, con-
tractual or other, for damage to property or injury to
persons or animals caused by improper installation,
adjustment, maintenance or use.
bThis instruction manual is an integral part of the
product. It must be kept safe and must ALWAYS
accompany the product, even if it is sold to another
owner or transferred to another user or to another
installation. If you damage or lose this manual,
order a replacement immediately from your local
THERMITAL Technical Assistance Centre.
aAlways turn the electrical power supply OFF at the
main switch before commencing any cleaning or
maintenance.
aDo not tamper with or adjust the safety or control
devices without prior authorisation and instructions
from the boiler’s manufacturer.
aNever pull, disconnect, or twist the electrical cables
coming from the appliance even if it is disconnect-
ed from the mains electricity supply.
aDispose of packaging materials in compliance with
applicable standards and legislation governing the
disposal of urban, domestic and industrial waste.
aNever switch the control panel on even for a short
period if the safety devices are not functioning cor-
rectly or have been tampered with.
aAll maintenance and repairs must be carried out by
a legally qualified heating engineer.
aDo not use water to extinguish fire in the control
panel. Switch power OFF at the mains power switch
to isolate the control panel electrically first. Then
use a class E fire extinguisher (marked “SUITABLE
FOR LIVE ELECTRICAL ITEMS”) to extinguish the
flames.
GENERAL SAFETY INFORMATION
PRECAUTIONS

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TABLEAU DE CONTROLE
CONTROL PANEL
PANNELLO DI CONTROLLO SCHALTTAFEL CUADRO DE MANDO
20Kgmax
–
–
l'Etichetta Caratteristiche Tecniche
il N° di codice riportato sull'imballo
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40
60
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100
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Cod. :
20017207
Made in Italy
Mod. :
TBOX BASIC ACS
20017699_E0
230 V AC - 50 Hz - 6.3 (A) T
IDENTIFICATION
PRODUCT DESCRIPTION
TBOX BASIC ACS control panels are thermostatic con-
trol panels for boilers with single stage jet burners for
central heating and domestic hot water production in
storage cylinders. All thermostatic control devices com-
ply with applicable technical and safety standards, and
are housed in an ABS box and protected by a cover.
All the electrical control and safety devices in TBOX
BASIC ACS control panels are factory tested in com-
pliance with applicable technical standards. Control
panels may be installed on top of the boiler or on
one of its side panels, using the optional side panel
mounting kit.
TBOX BASIC ACS control panels are identified by:
bTo make the electrical connections to the various system components and to the burner, refer to the instructions on
page 12 and to the specific instructions supplied with each item and with the burner.
APPLICATION CHART
Burner Cascaded
boilers
Cascaded
boilers
Solar water
heating
systems
DHW storage
cylinders
Direct
zone
1st mixed
zone
2nd mixed
zone
TBOX
BASIC ACS
1
2 1
2-stage
with kit
- the code number on the box
- the technical data label

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ACCESSORIES
TECHNICAL SPECIFICATIONS
Description TBOX BASIC ACS
Power supply 230 (+/-10%) ~ 50 V ~ Hz
Maximum current draw 6,3 A
Main power switch (two pole) 250 ~ 10(4) V ~ A
Summer/Winter selector (single pole) 250 ~ 10(4) V ~ A
Fuse 250 ~ 6,3 T V ~ A
Power consumption - W
Function indicators 230 V
Manual reset safety thermostat (TS) (*) 110 (+0/-6) °C
Boiler control thermostat (TR) - field of adjustment 30 ÷ 82 (+/-3) °C
Storage cylinder control thermostat (TB) - field of adjustment 0 ÷ 70 (+/-3) °C
Minimum temperature thermostat (Tm)
Control range 30 ÷ 90 (+/-3)
°C
Working setting 40 °C
Maximum temperature thermostat (TL82)
Control range 30 ÷ 90 (+/-3)
°C
Working setting 82 °C
Boiler overtemperature dispersal thermostat (TL90)
Control range 30 ÷ 90 (+/-3)
°C
Working setting 90 °C
Boiler temperature gauge (TeC) 0 ÷ 120 °C
Storage cylinder temperature gauge (TeB) 0 ÷ 120 °C
Index of protection X4D IP
Cable length 3 m
(*) Homologated
ACCESSORY CODE
Two-stage burner control kit 4031067
Wall mounting kit 20010056
The following accessories are available, to be ordered separately:

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UNPACKING THE PRODUCT
TBOX BASIC ACS control panels come in a cardboard
box that also contains the instruction manual.
TABLEAU DE CONTROLE
CONTROL PANEL
PANNELLO DI CONTROLLO SCHALTTAFEL CUADRO DE MANDO
20Kgmax
BA
D
C
G
E
F
H
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80
100
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Description
A348 mm
B353 mm
C160 mm
D170 mm
E
236 mm
F
75 mm
G
208 mm
H
218 mm
Weight
3,2 kg
DIMENSIONS AND WEIGHT

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ASSEMBLY
TBOX BASIC ACS control panels can be installed either on the top of the boiler or on one of its side panels. Before
commencing installation, check the arrangement of the holes on the top panel or side panel of the boiler.
311
170
41
218
208
75
Lato SUPERIORE della CALDAIA
Lato ANTERIORE della CALDAIA
Lato SUPERIORE della CALDAIA
Lato FRONTALE della CALDAIALato FRONTALE della CALDAIA
Pannellatura LATERALE
Pannellatura SUPERIORE
Lato ANTERIORE della CALDAIALATERALE della CALDAIA
LATERALE della CALDAIA
Once you have identified the right holes for the type of installation required, proceed as follows:
- Push out the pre-formed slots on the boiler casing corresponding to the oval cable grommets in the control panel
- Perforate the membranes of the control panel cable grommets. Pull out the thermostat cable and route it through the
slot in the top panel
- Secure the control panel to the boiler casing.
FRONT of boilerSIDE of boiler FRONT of boilerSIDE of boiler
SIDE panels
TOP panels
FRONT of boiler FRONT of boiler
TOP of boiler

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to sensor socket
in boiler
to sensor socket
in boiler
FRONT OF BOILER
FRONT OF BOILER
HORIZONTAL installation
B
A
A
C
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VERTICAL installation
to sensor socket
in boiler
Before you can install the control panel on a boiler side panel, proceed as follows:
- Remove the 4 screws (A).
- Remove the front trim (B), turn it through 180°, and fit it back on the body of the control panel (C).
- Install the control panel as instructed above.
A dedicated wall mounting kit is available. Refer to the instructions provided with the kit for details on installation.