Sentiotec A2 Bedienungsanleitung

Version 03/15 ID no. 1-023-473

INSTRUCTIONS FOR INSTALLATION AND USE

English

Sauna control unit

O-A2-9

WORLD OF WELLNESS

Table of Contents

1. About this instruction manual 4

2. Important information for your safety 5

2.1. Intended use 5

2.2. Safety information for the installer 6

2.3. Safety information for the user 7

3. Product description 8

3.1. Scope of delivery 8

3.2. Optional accessories 8

3.3. Product functions 8

4. Installation and connection 9

4.1. Installing the sauna control unit 10

4.2. Connecting wires 10

4.3. Installing the heater sensor with excess temperature fuse 12

4.4. Installing bench sensor F2 (optional) 13

4.5. Installing a door monitor (optional) 14

4.6. Performing tests 14

5. Troubleshooting for the installer 15

6. Connection diagram 17

7. Operating elements 18

8. Meaning of the displays 18

9. Operation 19

9.1. Switching on the light 19

9.2. Switching on the sauna control unit 19

9.3. Starting the sauna – Quick-start 19

9.4. Starting the sauna on a time-delay basis

(operation with preset time) 20

9.5. Deleting the preset time 20

9.6. Switching off the sauna control unit 21

9.7. Extended periods of non-use 21

9.8. How the optional door monitor works 21

WORLD OF WELLNESS

10. Cleaning and maintenance 23

10.1. Cleaning 23

10.2. Maintenance 23

11. Disposal 23

12. Troubleshooting for users 24

12.1. Exceeding the heating time 24

12.2. Light does not operate 24

12.3. Messages in the display 25

13. Technical data 26

WORLD OF WELLNESS

Instructions for installation and use p. 4/28

1. About this instruction manual

Read these installation and operating instructions carefully and keep them within

reach of the sauna control unit. This ensures that you can refer to information

about your safety and the operation at any time.

Symbols used for warning notices

These installation and operating instructions feature warning symbols next to ac-

tivities presenting a hazard to the user. Always observe the warning notices. This

prevents damage to property and injuries which could, in the worst case, be fatal.

The warning notices contain keywords, which have the following meanings:

DANGER!

Serious or fatal injury will occur if this warning notice is not observed.

WARNING!

Serious or fatal injury can occur if this warning notice is not observed.

CAUTION!

Minor injuries can occur if this warning notice is not observed.

ATTENTION!

This keyword is a warning that damage to property can occur.

Other symbols

This symbol indicates tips and useful information.

These installation and operating instructions can also be found in the

downloads section of our website: www.sentiotec.com/downloads.

WORLD OF WELLNESS

Instructions for installation and use p. 5/28

2. Important information for your safety

The A2 sauna control unit has been produced in accordance with the

applicable safety regulations for technical units. However, hazards

may occur during use. Therefore adhere to the following safety in-

formation and the specic warning notices in the individual chapters.

2.1. Intended use

The A2 sauna control unit is used for operating and regulating sauna

heaters in private households in accordance with the technical data.

It may only be used for operating and controlling 3 heating circuits

with a maximum heating capacity of 3 kW per heating circuit.

Any use exceeding this scope is considered improper use. Improper

use can result in damage to the product, in severe injuries or death.

WORLD OF WELLNESS

Instructions for installation and use p. 6/28

2.2. Safety information for the installer

●Installation may only be performed by a qualied electrician or

similarly qualied person.

●Installation and connection of the sauna control unit may only be

performed when the power supply is disconnected.

●An all-pole disconnecting device with full cut-off compliant with

overvoltage category III must be tted on-site.

●The sauna control unit must be installed outside the sauna room

at a height of approx. 1.70 m or in accordance with the rec-

ommendation issued by the sauna manufacturer. The ambient

temperature must be within a range spanning -10 °C to +40 °C.

●The heater sensor must be attached in a way that it is not af-

fected by a ow of air.

●Also comply with the regulations applicable at the installation

location.

●For your own safety, consult your supplier in the event of prob-

lems that are not explained in sufcient detail in the installation

instructions.

WORLD OF WELLNESS

Instructions for installation and use p. 7/28

2.3. Safety information for the user

●The sauna control unit must not be used by children under

8 years of age.

●The sauna control unit may be used by children above 8 years

old, by persons with limited psychological, sensory or mental

capabilities or by persons with lack of experience/knowledge

only when:

– They are supervised.

– They have been shown how to use the device safely and

are aware of the hazards that could occur.

●Children must not play with the sauna control unit.

●Children under 14 years of age may only clean the sauna control

unit if they are supervised.

● For health reasons, do not use the sauna when under the inu-

ence of alcohol, medication or drugs.

● Make sure that no ammable objects have been placed on the

sauna heater before the sauna control unit is switched on.

● Make sure that no ammable objects have been placed on the

sauna heater before you activate the pre-set timer function.

●For your own safety, consult your supplier in the event of prob-

lems that are not described in sufcient detail in the operating

instructions.

WORLD OF WELLNESS

Instructions for installation and use p. 8/28

3. Product description

3.1. Scope of delivery

●Single-component sauna control unit

●F1 heater sensor with integrated excess temperature fuse

●Sensor wires

●Installation accessories

3.2. Optional accessories

●F2 bench sensor (item number: O-F2)

●Power booster (item number: O-S2-18 / O-S2-30)

3.3. Product functions

The A2 sauna control unit is used for operating and controlling sauna heaters

within a temperature range spanning 40 °C to 125 °C above the heater. The sauna

control unit functions according to a single sensor system, and features an ex-

cess temperature fuse with a shut-off temperature of 139 °C above the heater.

If the sauna cabin temperature is lower than the set temperature, the sauna

control unit switches on the sauna heater. The sauna heater heats up. If the

sauna cabin temperature exceeds the set temperature, the sauna control unit

switches off the sauna heater. The sauna heater will not heat up again until the

sauna cabin temperature falls below the preset temperature.

For safety reasons, the heating time limit automatically switches off the sauna

control unit after heating for a period of 6 hours.

The A2 sauna control unit has a preset time function. The preset time can be

set to increments of minutes. The maximum preset time totals 23 hours and

45 minutes. Once the preset time has elapsed, the sauna heater switches on.

A power booster allows the maximum contact rating to be increased from 9 kW

to 18 kW or 30 kW.

WORLD OF WELLNESS

Installation instructions, for professionals only p. 9/28

4. Installation and connection

ATTENTION!

Damage to the unit

The sauna control unit is protected against jets of water, however direct contact

with water could still damage the unit.

●Install the sauna control unit in a dry place at which a maximum humidity

of 95% is not exceeded.

Observe the following points when installing and connecting the sauna control unit:

●The sauna control unit must be installed outside the sauna room at a height

of approx. 1.70 m or in accordance with the recommendation issued by the

sauna manufacturer. The ambient temperature must be within a range span-

ning -10 °C to +40 °C.

● There must be a xed connection for the electrical power supply.

●The heater sensor wires must be laid separately from the other mains wires

and control wires. Wires with only one layer of insulation must be protected

by using a pipe (double insulation).

●An all-pole disconnecting device with full cut-off compliant with overvoltage

category III must be tted on-site.

●The sensor may only be connected using the sensor wires provided with the

unit, which are heat-resistant up to 150 °C.

●The heater sensor must be installed in the sauna cabin above the middle

of the sauna heater. An clearance of approx. 15 cm to the roof of the sauna

room must be maintained.

● The heater sensor must be attached in a way that it is not affected by a ow

of air.

ATTENTION!

Damage to the unit

●The sauna control unit may only be used for operating and controlling 3 heating

circuits with a maximum heating capacity of 3 kW per heating circuit.

WORLD OF WELLNESS

Installation instructions, for professionals only p. 10/28

4.1. Installing the sauna control unit

Refer to Fig. 1 (page 11).

1. Press the clip lock 6 lightly using a screwdriver and remove

the cover from the housing.

2. Screw one cross-head screw (20 mm) into the wall of the sauna

at a height of approx. 1.70 m with a clearance of up to 7 mm.

3. Hang the sauna control unit onto the cross-head screw using

the attachment device cas an aid.

4. Guide the sensor wires through the cable bushing 4.

5. For the optional door monitor only:

Guide the wires for the door monitor through the cable bushing 2.

6. Guide the heater, power supply and light cables through the cable

bushing 7.

7. Screw two cross-head screws (20 mm) into the lower fastening

holes 3and 8.

8. Ensure that the sauna control unit is tted securely.

4.2. Connecting wires

Refer to Fig. 1 (page 11) and Fig. 3 (page 17).

1. Connect the white wire for the sensor heater to terminal F1 on the

terminal strip 1; it is not necessary to ensure correct polarity.

2. Connect the red wire for the sensor heater to terminal TS on the terminal

strip 1; it is not necessary to ensure correct polarity.

3. For the optional door monitor only:

Remove the jumper wire from the terminal DR on the terminal strip 1

and connect the wires for the door monitor.

4. For the optional bench sensor only:

Remove the jumper wire from terminal F2 to terminal strip 1and clamp on

the lines of the bench sensor; it is not necessary to ensure correct polarity.

5. Connect the heater, power supply and light cables (Fig. 3) to the terminal

strip 9 in accordance with the connection diagram.

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