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EKS (NI, NIS, NV, NV PH, NV PTC/PS)
www.salda.lt
Standard circular duct heaters type EKS has no internal controller, in this case can be used external heating controllers EKR 15.1, EKR 15.1P, EKR
30, EKR 30P and temperature sensor TJK 10 K. Controllers and sensor are not included in the package of product.
Model
Controlled load [kW] Extra load control*
Full load
Relay output
Voltage output
EKR15.1
15
Up to 12 kW
27 kW
1x5A/230V
3x230/3x400
EKR15.1P
15
Up to 225 kW
240 kW
4x5A/230V
3x230/3x400
EKR30
30
Up to 42 kW
42 kW
1x5A/230V
3x230/3x400
EKR30P
30
Up to 420 kW
450 kW
4x5A/230V
3x230/3x400
* Extra load control with contactor
For one-phase and two-phase heaters control we recommend to use proportional controller EKR6.1 and temperature sensor TJK10K. Controller and
sensor are not included in the package of product.
Model
Controlled load [kW]
Maximum controlled current [A] Voltage output
EKR6.1
6,4 kW/400V
16 A
2x400V
3.2 kW/230V
1x230V
Electric duct heaters with built-in control has installed internal controller EKR-KN which works by algorithm impulse/pause..., that enables fine tem-
perature control. Regulator controls load by triacs without moving parts, which causes no-noise commutation. Following models of heaters are with
internals controllers, and there are differences between them:
Type
NV
- you can set temperature of heater with potentiometer installed on heaters casing.
Type
NI
- you can set temperature from distance with wired remote potentiometer
TR5K
Type
NIS
– heater control from distance with 0 – 10V signal.
Type
PTC
– heater with installed air flow sensor.
Type
PS
– heater with installed pressure sensor
Type
NV PTC/PS
or
NV PH
– heater with installed air flow sensor and pressure sensor.
Heaters with built-in controls comes with temperature duct sensor in the package of the product (except type EKS NIS).
The duct heaters are designed for a minimum air velocity of 1,5 m/s. If the air flow is lower than 1.5 m/s it can often be activated overheat protection.
Model
Control
Control type
EKS
External controller EKR
External control
EKS NV
Built-in controller EKR-KN
Control on heaters casing, default temperature
setpoint
0°C ... +30°C
EKS NV PTC/PS, EKS NV PH
Built-in controller EKR-KN
Control on heaters casing, default temperature
setpoint
-10°C ... +50°C
. Air flow sensor and
pressure sensor are installed inside the heater.
Difference between heaters is EKS NV PTC/PS
and EKS NV PH, that EKS NV PH temperature
setpoint is
-20°C iki -5°C
.
EKS NI
Built-in controller EKR-KN
Remote control with wired potentiometer, de-
fault temperature setpoint
0°C ... +30°C
EKS NIS
Built-in controller EKR-KN
0-10V control
In heaters type NV PTC/PS, NV PH are installed controllers with default temperature setpoint -10°C ... +50°C, on your needs we
can install controllers with different temperature setpoints:
-40 °C till -10 °C
0 °C till +30 °C
-5 °C till 0 °C
-20 °C till -5 °C
-10 °C till 0 °C
-
Please inform about needed temperature setpoint before production, othervise heater will be produced with factory default
setpoint.
