Salda EKA User manual


EKA_P0093_AZ_0002
ELECTRIC DUCT HEATERS
EKA&9$0
EKA NI&9$03(
EKA NIS&9$039
EKA NV&9$03,
EKA NV PH&9$04,$
EKA NV PTC/PS&9$04,
USER MANUAL

2
EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt
Safety instructions and precautions 3
WARNING! SAFETY REQUIREMENTS 3
TRANSPORTING AND STORING 3
RECEIVING AND HANDLING 3
SERVICE 3
QUALITY 3
INGRESS PROTECTION (IP) RATING 3
CIRCULAR DUCT HEATER TYPES 4
SPECIFICATION 4
INSTALATION 4
Electrical connection 5
WIRING DIAGRAMS 6
HEATERS DESCRIPTION & STRUCTURE 11
Double overheat protection 11
Duct connection 11
CONTROL 11
External control of three-phase heaters 11
External control of one-phase & two-phase heaters 11
Heaters with built-in control 11
Air velocity 11
CIRCULAR DUCT HEATER TYPES 11
Appendix A. CIRCULAR DUCT HEATERS POWER &
DIMENSIONS 12
TROUBLESHOOTING 13
NOTES 15
WARRANTY 16
WARRANTY CLAIM FORM 16

3
EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt

The electrical heater’s model and serial number is located on the label of the product.
Parts of the heater become very hot when operating and immediately after operating.
Severe burns may occur if the heater is not allowed to cool down properly before servicing.

Do not perform any service with heater plugged in. Serious injury or death may occur if personnel come in contact with high voltage
lead.




year.
Inspect heater for any possible shipping damage. Inspect heater element wire for any deformation that could cause a short circuit or





IP44/IP55.
IP30.

read and understood its contents before using the heater.

4
EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt
To ensure long service time and quality heating we use heating elements from stainless steel.

Heater voltage 
Heater power        
Number of heating elements        
Heater voltage  
Heater power       
Number of heating elements     6x1.5  


EKA NV 400 15.00 3f PTC PS
Heater with installed pressure sensor


Number of phases.
Power of heater kW
Heater diameter
Heater type.



Circular duct heater

 through heater must be not less 1,5 m/s. Heaters can not be in
stalled in explosive and aggressive substances atmosphere. Heaters can be used only for clean air heating. Heaters intended for inside installation.
Heaters installation position:
Installation example EKA NV
D
EKA NIS
FV
D
EKA NV
3xD
TJ

Duct sensor
Room

5
EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt
D
EKA NIS
D
EKA NI
FV
3xD
D
EKA NIS
FV
TJ
D
EKA NIS
EKA NIS
F
D
LED1
PS
LED2
EKA NV...PTC/PS
TK-K10K
AHU*
3xD
R
RESET P1
Installation example EKA NI
Installation example EKA NV PTC/PS, EKA NV PH
Installation example EKA NIS
Temperature


Duct sensor
Room

Room

heater.
*AHU


3xD – we recommend install duct temperature sensor in minimum distance multiplied by the heater’s diameter. For example: heater

INDICATION of LED lamps on EKA NV PTC/PS casing
1. LED1

2. LED2

2. Power supply source must conform with data on heater label.
3. Power supply cable must be selected corresponding to heater electrical data.


6
EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt
technical data table.
5. Heater must be grounded.
6. For heaters install duct temperature sensor and connect as in wiring diagram.
EKA 1X230V

B – protection from over

C – protection from over



S – Automatic circuit



B – protection from over

C – protection from over



S – Automatic circuit



B – protection from over

C – protection from over



S – Automatic circuit



EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt


B – protection from over

C – protection from over



S – Automatic circuit

T – thermostat


sensor


B – protection from over

C – protection from over



S – Automatic circuit

T – thermostat


sensor


B – protection from over

C – protection from over



S – Automatic circuit

T – thermostat


sensor

8
EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt


B – protection from over

C – protection from over



S – Automatic circuit

T – thermostat


sensor
TR5K – external potentiom
eter


B – protection from over

C – protection from over



S – Automatic circuit

T – thermostat


sensor
TR5K – external potentiom
eter


B – protection from over

C – protection from over



S – Automatic circuit

T – thermostat


sensor
TR5K – external potentiom
eter


EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt


B – protection from over

C – protection from over



S – Automatic circuit

T – thermostat



B – protection from over

C – protection from over



S – Automatic circuit

T – thermostat



B – protection from over

C – protection from over



S – Automatic circuit

T – thermostat



EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt


B – protection from over

C – protection from over



S – Automatic circuit

T – thermostat


sensor





B – protection from over

C – protection from over



S – Automatic circuit

T – thermostat


sensor





B – protection from over

C – protection from over



S – Automatic circuit

T – thermostat


sensor




11
EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt
Duct heaters are designed to heat clean air in ventilation systems and to preheat air handling units. Corrosion resistant casing with excellent thermal

duct heaters are installed 2 protection thermostats and screw terminals for easy connection.
Heaters casings are produced from AluZinc coated steel and heating elements from stainless steel  
because for its properties:



Durability:15 years.



First overheat protection automatically activates if temperature reaches 50°C
automatically switches on.
Second overheat protection automatically activates if temperature reaches 100°C
manually
with the pushbutton on the heaters casing.
For easy duct connection heaters casing is with rolled rubber seals.
Model Controlled load [kW] Extra load control* Full load Relay output Voltage output
EKR15.1 15    
EKR15.1P 15    
     
     
* Extra load control with contactor


Model Controlled load [kW] Maximum controlled current [A] Voltage output
EKR6.1  16 A 
 



Type NV
Type NI
Type NIS
Type PTC
Type PS – heater with installed pressure sensor
Type NV PTC/PS or NV PH
Heaters with built-in controls comes with temperature duct sensor in the package of the product (except type EKA NIS).

Model Control Control type
EKA External controller EKR External control
EKA NV  


12
EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt
 


pressure sensor are installed inside the heater.



EKA NI       

EKA NIS  
In heaters type NV PTC/PS, NV PH+ are installed controllers with default temperature setpoint -10 °C ... +50 °C, on your needs

  
  
Please inform about needed temperature setpoint before production, othervise heater will be produced with factory default
setpoint.
All circular duct heaters EKA regardless of the type can be produced in following dimensions and power:
Type Diameter 3/h] Voltage [V/50Hz] Power [kW]

    

 125   

  
 
 
 

  
 
 
 

  
 
 
 


315
355
415

 
 
 
EKA NIS* 315   
 
EKA NIS*  
 

 


  
 
 
 
EKA NIS*    
 

    
 
EKA NIS*  1685









13
EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt

Production time can be longer as usually.






EKA NIS*  
 

 

No heat from heater              
         
press „RESET“ button on heaters cover.


 
data.


trical data.
 
Standard heaters EKA
No heating from heater               
         
press „RESET“ button on heaters cover.






5. PCB fault. Change PCB.
 




4. PCB fault. Change PCB.
 
data.


trical data.
 
Heaters with built-in controls EKA NV, EKA NI, EKA NIS


14
EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt
No heating from heater              
         
press „RESET“ button on heaters cover.




           

5. PCB fault. Change PCB.
 




4. PCB fault. Change PCB.
 
data.


trical data.
 
           

Heaters with built-in controls EKA NV PTC/PS, EKA NV PH

15
EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt

16
EKA (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt


2. In case of damaged or faulty product during warranty term customer must inform producer in 5 days and deliver product to manufacture as soon as
possible at customer’s costs. In other case warranty is not valid.
3. Manufacture is not responsible for damages which occur during transportation or installation.
- Warranty Claim Form has to be COMPLETELY
- Product or product part serial number and production date must be indicated.
- All defective products or product parts should be returned to factory with the copy of this form.

and etc.) has to be sent with this form. Photos must be taken in such a way that product or product part label and possible defect part is


product without written producer consent.
- An invoice has to be included to obtain warranty.
Date: Filled out by: Company:
Address:
Phone: Fax: 
Product or product part name:
Serial number: Production date: Malfunction date:


  

Operating data:




Full explanation of the malfunction:

Warranty Claim Form reception date: Received by: 

Producer decision and explanation: