
2| CK 15-20 E / CKT 15-20 E WWW.STIEBEL-ELTRON-USA.COM
CONTENTS | OPERATION
IMPORTANT INSTRUCTIONS
OPERATION
1. Important Instructions_______________________________________2
1.1 Document information__________________________________________ 2
1.2 Safety information_______________________________________________ 3
1.3 Other symbols in this document______________________________ 3
2. Safety__________________________________________________________3
2.1 Intended use______________________________________________________ 3
2.2 Safety information_______________________________________________ 3
2.3 General information_____________________________________________ 4
2.4 Test symbols ______________________________________________________ 4
2.5 Licences / certificates ___________________________________________ 4
3. Register your product _______________________________________4
4. Appliance description _______________________________________4
4.1 Control with external room temperature controller _____ 4
5. Operation CK 15 E / CK 20 E _________________________________4
5.1 Starting heating__________________________________________________ 4
5.2 Stopping heating / frost protection __________________________ 4
6. Operation CKT 15 E / CKT 20 E ______________________________5
6.1 Starting heating__________________________________________________ 5
6.2 Adjusting the time switch______________________________________ 5
6.3 Stopping heating / frost protection __________________________ 5
7. Cleaning, care and maintenance ___________________________5
8. Storage ________________________________________________________5
9. Troubleshooting ______________________________________________5
INSTALLATION
10. Safety__________________________________________________________6
10.1 General safety information ____________________________________ 6
10.2 Instructions, standards and regulations ____________________ 6
11. Appliance description _______________________________________6
11.1 Standard delivery________________________________________________ 6
12. Installation____________________________________________________6
13. Electrical connection_________________________________________6
13.1 Terminal block____________________________________________________ 6
14. Appliance handover__________________________________________6
15. Specification __________________________________________________7
15.1 Dimensions________________________________________________________ 7
15.2 Minimum clearances to hard surfaces ______________________ 7
15.3 Specification table_______________________________________________ 8
15.4 Wiring diagram CK 15 E ________________________________________ 9
15.5 Wiring diagram CKT 15 E_______________________________________ 9
15.6 Wiring diagram CK 20 E _______________________________________ 10
15.7 Wiring diagram CKT 20 E______________________________________ 10
16. Warranty ____________________________________________________ 11
OPERATION
1. Important Instructions
SAVE THESE INSTRUCTIONS
When using electrical appliances, basic precautions should always
be followed to reduce the risk of fire, electric shock, and injury to
persons, including the following:
1. Read all instructions before installing or using this heater.
2. This heater is hot when in use. To avoid burns, do not let bare
skin touch hot surfaces. Keep combustible materials, such as fur-
niture, pillows, bedding, papers, clothes, etc. and curtains at least
3 feet (1 m) from the front of the heater and keep them at least 3
feet (1 m) away from the sides and rear.
3. Extreme caution is necessary when any heater is used by or
near children or invalids and whenever the heater is left operating
and unattended.
4. Do not operate any heater after it malfunctions. Disconnect
power at service panel and have heater inspected by a reputable
electrician before reusing.
1.1 Document information
The chapter Operation is intended for users and heating contrac-
tors.
The chapter Installation is intended for heating contractors.
Note
Read these instructions carefully before using the ap-
pliance and familiarize yourself with its functions. Keep
these instructions safe. Pass on the instructions to a new
user if required.