IMC 230Vac Immersion Controller User Guide

IMC 230Vac Immersion Controller

Installation Instructions

Factory Default Settings

• Clock: 24 hour
• Daylight saving : On
• Backlight: Auto
• Keypad lock: Off
• PIN lock : Off
• Programming mode: 24H

Specifications

• Power supply : 230V~, 50Hz
• Power consumption: 10mA
• Ambient temperature: 0…45°C
• Admissible ambient humidity : 5-95%RH
• Dimensions: 170 x 116 x 63 mm
• Contact rating : 230V~, 50Hz, Max. 13A resistive
• Program memory backup : Internal
• Battery: LIR 2032
• Backlight: White
• IP rating : IP20
• Pollution degree : Pollution Degree 2
• Rated impulse voltage: Resistance to voltage surge 2KV as per EN60730
• Automatic action: Type 1C

LCD Symbol / Button Description

LCD Display

Button Description

Mounting & Installation

Caution!

• Installation and connection should only be carried out by a qualified person.
• Only qualified electricians or authorized service staff are permitted to open the controller.
• If the controller is used in a way not specified by the manufacturer, its safety may be impaired.
• Prior to setting the controller, it is necessary to complete all required settings described in the section.
• Do not use sharp tools to push any button.
• WARNING! Isolate the mains supply before commencing installation and ensure the unit is properly earthed.

The IMC is supplied with its own surface mounting box, which can be mounted over a single or double gang-USH wall box. It should not be mounted on an unearthed metal surface.
An immersion heater must have its own radial circuit.
This should be protected by a 16 Amp RCBO. A three core heat resistant flexible cable with a minimum conductor size of 1.5mm2 must be used to connect the IMC controller to the immersion heater and must be well insulated.

1. Loosen the 2 screws on the front housing of the controller.
2. Remove the appropriate break-outs before xing the surface mounting box.
3. Secure the back housing with fixing screws as shown. Wire the controller as per the wiring diagram.
4. Replace the front housing and tighten the 2 screws.

Note

• Use a cable with a minimum conductor size of 1.5mm2 for a 3kW heater to connect the element(s) to the IMC controller.
• When wiring is complete ensure that all terminal screws, including the earth terminal screws, are securely tightened.
• Clamp all surface wiring adjacent to the back housing of the controller or use trunking where appropriate.
• Secure the heat-resistant flexible cords from the immersion heater using the cable clamp on the back housing

Installation Drawing

Wiring

Caution

• Mains voltage output only

Terminal Connections

• Terminal 1 : Live In
• Terminal 2 : Neutral In
• Terminal 3 : Neutral Out
• Terminal 4: Boost Load
• Terminal 5: Timed / Off Peak Load

Single Element Immersion Heaters

1. Connect the Neutral to Terminal 3.
2. Connect the Earth to the Earth terminals.
3. Connect the Live to both Terminal 4 and Terminal 5.

Dual Element Immersion Heaters

1. The heaters should be controlled through separate thermostats. In practice the thermostat for the top (short) element is usually set 5 – 10 °C less than the thermostat for the (long) Off Peak element.
2. Connect the Neutral to Terminal 3.
3. Connect the Earth to the Earth terminals.
4. Connect the short element (Boost Load) to Terminal 4.
5. Connect the long element (Timed/Off Peak Load) to Terminal 5.

Note:
The 3 core flexible cable from the immersion heater to the IMC controller should be heat resistant and rated to 85˚C

Operating Instructions

Setting the date, time and programming mode

Operating Switch

This function allows you to change the operating mode of the controller.
There are two selections ‘OFF’ and ‘Timed’.

Setting Controller to OFF

Use the Operating Switch to set the controller to OFF.
The controller will not operate when the switch is set to OFF.

Setting Controller to TIMED

Use the Operating Switch to set the controller to TIMED.
The controller will switch on and o based on the time programs set by the user in the PROG mode. (Factory settings )

Setting Controller to BOOST

Note: Boost is only possible when the operating switch is set to TIMED

Press the once for 30 minutes, twice for 1 hour, three times for 2 hours, four times for 3 hours. Press to confirm the BOOST time required.

The controller will activate for the selected period and then revert to its previous timed program.

Programming Modes

The IMC Controller has the following programming modes available:

24 Hour mode: Programming all 7 days as one block with the same times.

5/2 Day mode: Programing Monday to Friday as one block and Saturday and Sunday as a 2nd block.

There are 3 On and Off times per day possible.

7-Day mode: Programming all 7 days individually with different times.

If 7 D mode is selected, you can program each day of the week with 3 On and Off times.
If 24H mode is selected, you can only program each day of the week with the same 3 On and Off times.

Factory Program Setting

Programming Timed Mode

Adjusting the program settings in 24H Mode

There are three On/Off times per day possible, represented by P1, P2 and P3.

Press the once.

The day(s) of the week being programmed will appear at the top of the screen, the different modes (5/2 d, 7 d & 24 hr) can be chosen in the TIME menu

Adjusting the program settings in 5/2D Mode

Press the once.

MON – FRI will appear at the top of the screen.

Repeat this process for P2 and P3 On / Of times.
SAT-SUN will appear at the top of the screen.
Repeat this process for the Saturday and Sunday programs

Press or wait 30 seconds to return to normal operation.

Adjusting the program settings in 7D Mode

Press the once.

MON will appear at the top of the screen.

Repeat this process for P2 and P3 On / Off times.
TUE will appear on the screen, repeat this process for the remaining days of the week.

Press or wait 30 seconds to return to normal operation.

Keypad Lock Function Unlocked

The Keypad Lock function allows the user to prevent changes being made by disabling the buttons.

Locking the keypad

To lock the keypad, press and hold both the together for 10 seconds.

will appear on the screen. Keypad is now locked.

Unlocking the keypad

To unlock the keypad, press and hold both the together for 10 seconds.

will disappear from the screen. Keypad is now unlocked.

Note: The user can still use the operating switch to change between TIMED and OFF modes even when the keypad is locked.

Menu Function

This menu allows the user to adjust additional functions on the controller.

P01 – Backlight Function Auto

There are two settings for selection, the factory default setting is AUTO.

AUTO: On pressing any button the backlight stays on for 10 seconds.
ON: Backlight is permanently ON.

To adjust the backlight function, press .
P01 will be flashing on the screen. Press

Press either to select between AUTO and ON mode.

Press to confi rm and to return to normal operation.

Menu Function

P02 – Holiday Function Off

This function lets the user set the controller to the o position for a set duration.

‘HOLIDAY’ and ‘TO’ will appear on the screen and the ‘year’ will be flashing.

The controller is now in holiday mode and will not activate until the holiday
period finishes. The screen will display the holiday end date and time.
All buttons, except become inactive during the holiday period.
To cancel holiday mode, simply press once.

P03 – PIN lock Off

The PIN lock function lets the user lock the controller with a PIN number to prevent changes to the programming.

‘0000’ will appear on the screen.

Use to choose a value between 0 and 9 for the first digit of the PIN.

Press

Repeat this process for the remaining 3 digits of the PIN.

Press

Menu Function

P03 – PIN lock (Continued)

COnF’ will appear on the screen, the user needs to re-enter the PIN to confirm. Enter your PIN number again by using and

• Note
  When the PIN is confirmed, the PIN lock is activated immediately.

• When the PIN lock is activated, will flash on the main screen.

• The user can still use the mode switch to change between TIMED and OFF modes even when the keypad is PIN-locked.

• When the PIN lock is activated, Boost is limited to 30 minutes or 1 hour.

To cancel PIN lock:

Press and enter your PIN number again by using and

P04 – Reset Function

The Reset function lets the user reset the controller to factory default settings.

Press

‘P01’ will be flashing on the screen.

‘No’ and ‘rst’ will appear on the screen.

Device will now restart and revert to its original factory settings.

EPH Controls IE

• technical@ephcontrols.com
•   www.ephcontrols.com/contact-us
• +353 21 471 8440
• Cork, T12 W665

EPH Controls UK

• technical@ephcontrols.co.uk
•  www.ephcontrols.co.uk/contact-us
• +44 1933 322 072
• Harrow, HA1 1BD

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