ENGO CONTROLS EPC11W Pump Controller User Guide
- June 13, 2024
- ENGO CONTROLS
Table of Contents
ENGO CONTROLS EPC11W Pump Controller
Introduction
Controller is designed to control water pump in central heating system or pump of the hot water tank. It can be used also as a safety thermostat. Controller will turn on or turn off the pump depends on the sensor temperatures. Pump is running after exceeding the setpoint temperature „C” set by user and it will stop after exceeding setpoint temperature „U”.
Product Compliance
This product complies with the essential requirements and other relevant provisions of the following EU Directives: EMC 2014/30/EU, RoHS 2011/65/EU.
Safety Information
Use in accordance to national and EU regulations. Use the device as intended,
keeping it in dry condition. Product for indoor use only. Installation must be
carried out by a qualified person in accordance to national and EU
regulations.
Before carrying out any activities related to the power supply (connecting
wires, device installing etc.), make sure that main power is not connected to
the controller! Incorrect wiring connections may cause device damage.
Controller description
- Power supply indicator
- Pump operation indicator
- Display
- Increasing setpoint temperature or value
- Menu button
- Decreasing setpoint temperature or value
- Controller power supply
- Pump power supply
- Temperature sensor
- ON/OFF power supply switch
Technical specification
| Power supply | 230V AC 50Hz |
|---|---|
| Max load of the pump output | 3 (1) A |
| Temp. measurement range | 0 – 99°C |
| Adjustable temp. range (ON) | 5 – 75°C |
| Adjustable temp. range (OFF) | 10 – 80°C |
| Sensor temp. range | -10 – 120°C |
| Sensor cable lenght | 1,5m |
| Dimension [mm] | 155 x 70 x 39 |
Wiring diagrams – examples
- CENTRAL HEATING PUMP CONTROL
- NOTE! The „U” parameter should be set to the maximum value. Pump will be turned on when temperature sensor exceed the value of „C” parameter.
- HOT WATER PUMP CONTROL OR WORK AS A SAFETY THERMOSTAT
- NOTE! The „C” parameter should be set to the minimum value. Pump will be turned off when temperature sensor exceed the value of „U” parameter.
Principle of operation
- U – above this temeprature pump is turned OFF
- C – above this temeprature pump is turned ON
Controller operation
- Setpoint temperature of the pump start can be changed by pressing button (menu option). On the display appears flashing „C” letter. At this point „C” setpoint temperature can be changed with or buttons. After a few seconds controller will go it self into operating mode and display the current temperature.
- Setpoint temperature of the pump stop can be changed by pressing the twice button (menu option). „U” parameter is the next parameter after „C”. On the display appears flashing „U” letter. At this point „U” setpoint temperature can be changed with or buttons. After few seconds controller will go itself into operating mode and display the current temperature.
- C – activation temperature of the CH pump above the set value (setting range 5-75°C).
- U – maximum HW reservoir temperature (deactivates the HW pump above the set value, setting range 10-80°C).
Manual mode
This function allows to check if connected pump is working correctly.The pump
will be turned on after pressing buttons and . Pressing these buttons again
will turn off the pump.
Histeresis
This is the difference between setpoint temperature of the pump start and
setpoint temperature of the pump stop. Controller has a constant hysteresis of
2°C. For example:
- When „C” parameter is set to 30°C, then pump will turn on after exceeding 30°C and turn off when temperature will drop to 28°C.
- When „U” parameter is set to 50°C, then pump will turn off after exceeding 50°C and turn on when temperature will drop to 48°C.
Additional functions
- Controller has an „anti-stop” function which protects pump against lime scale when there is no heating season. Pump is turned on every 14 days for 15 seconds.
- An additional protection is the frost protection function, which runs pump permanently when temperature on the sensor drops below 5°C.
Alarm
The controller is equipped with an acoustic alarm signaling:
- Too high temperature on the boiler 90 ° C.
- Short circuit in the CH sensor
Error Code
- E1 – short circuit in the CH sensor
- E2 – broken CH sensor
PLEASE NOTE! If the E1 or E2 error is displayed, the CH pump works all the time until the fault is removed.
CONTACT
- Producer:
- Engo Controls S.C.
- 43-200 Pszczyna
- ul.Górnośląska. 3E
- Polska
Distributor:
- QL CONTROLS Sp z o.o. Sp. k.
- 43-262 Kobielice
- 4 Rolna St.
- Poland
- www.engocontrols.com.
- Ver. 2 Release date: V 2023