Esco SC-20D User Manual

12. NOTES.

12

SC-20

TEMPERATURE CONTROLLER

USER MANUAL / WARRANTY

Version 2.0

D

1. SPECIFICATIONS.

Input:

Sampling period:

330 ms

230V~ ±15% or 12V=/~, max 3VA

Operating conditions: -5...60°C; 0...85%RH (non-condensing)

Storage conditions: -40...85°C; 0...85%RH (non-condensing)

Power supply:

two temperature sensors: NTC 5k by 25°C
bistate input (normally opened or normally closed)

Measuring accuracy: ±0,5%

Display resolutio: 0,1°C in whole range

Control form:

ON-OFF with hysteresis

Display:

LED, 4 digits, 11mm height with graphic icons

Protection class:

Ip20 / II

Measuring range:: -50...+150°C

Setting resolution: 0,1°C in whole range

2

2. OUTPUTS CARRYING CAPACITY.

11.2. Domestic hot water circuit circulation pump and central heating circuit pump control system.

11

Output: Relay:

Maximum resistive

load (for example heater):

Maximum inductive

load (for example engine):

30A 250V~

5

10 cycles

20A, 4500W

8A, 1500W, 2HP(2KM)

8A 250V~

5

10 cycles

8A, 1500W

2A, 400W, 0.5HP(0.5KM)

OUTPUT1

OUTPUT2

3. FRONT PANEL.

temperature setting signalling
OUTPUT1 signalling. LIGHTS: output active; BLINKS: output waits for start-up
OUTPUT2 signalling. LIGHTS: min or max temperature value exceeded (see: F15 or F16);

BLINKS: output waits for start-up (see: F17)

temperature display
temperature sensor number
entry to the parameters menu
temperature setting button

value increasing button
value decreasing button

emergency states signalling

Functions performed by the controller in the system:

- domestic hot water circulating pump and central heating
pump control system.
Tips for parameters programming:
F10=1 (container T1 and boiler T2 temp measurement)
F11=setting specifying the boiler temperature growth in
relation to the container temperature so that the domestic
hot water pump switches on, for example 8 °C
F12=DHW pump switching hysteresis, for example. 2 C
F15=given water temperature in the container. DHW pump
has a priority, so that only after reaching this setting, central
heating pump switches on, for example 60 °C
F16=OFF; F17=0.1; F21=0; F29=COOL ; F50=0 ; F51=0
F52=0 (when central heating pump switches on, domestic
hot water pump switches off)

°

F12=2°C
F12=2°C

6°C

8°C

Main

output

Time

Time

Temp.

0

1

10°C

Auxiliary
output

when T1>F15

1

T2-T1

Time

0

F11

SC-20

T1 - boiler temperature sensor
T2 - fireplace temperature sensor
Collector pump and c.h. pump max. 400W 230V~

Power supply

230V~

20(8)A 8(2)A

T2

Pk

Pco

131415161211

D

M

set

Pch

Pdhw

Cold
water

T2

T1

Boiler

M

set