Installation manual

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EKCC7-W

Central control for hydroboxes

4P341705-1 – 2013.02

Installation and operation manual

To User settings

Opens the ‘User settings’ menu with following items:

 Time/date

Enter the correct time and date if you want to use the quiet

mode, room heating or DHW heating schedules.

 Quiet mode

Select OFF, ON, or SCHEDULED.

The central control will send the quiet mode command to the

units as selected. (Make sure to set the desired quiet mode level

on the units themselves. Refer to the installation manual of the

units – parameter [8-03].)

A schedule for the quiet mode can be entered in the ‘Settings’

menu (see below).

 Set room mode

Select OFF, COOLING, or HEATING mode.

If ‘By external contacts’ is selected in Installer settings - System

layout? - ON/OFF method, the mode cannot be selected on the

central control, but only by external contacts.

 Domestic hot water

Select the domestic hot water mode.

If set to ‘ON’, the domestic hot water will be heated in

accordance with the schedule that can be set in the ‘Settings’

menu (see below).

If ‘Reheat now?’ is set to ‘ON’, heating of the domestic hot water

will be started immediately until the set reheat temperature

(Reheat now till:) is reached.

 Settings

 Quiet mode schedule

Enter the quiet mode schedule for every day of the week.

(1 = quiet mode activated)

 Settings for room

- Room heating

• Leaving water temp.

Define the heating curve (leaving water temperature

in function of outdoor temperature).

1 LWT at low Ta

2 LWT at high Ta

3 Low Ta

4 High Ta

• Max. Ta heating

Enter the room temperature above which the system

should not heat.

• LWT schedule

Enter the deviation from the heating curve in function

of time.

- Room cooling

As above, but for cooling.

 Settings for DHW

- DHW schedule

Enter the desired domestic hot water temperature in function

of time.

- Disinfect params

Enter the desired disinfection temperature, disinfection

duration and day of the week and time to start disinfection.

The tank will be heated until the entered disinfection temperature for

an (accumulated) time equal to the disinfection duration is reached.

6. Alarm handling

Unit alarms and system alarms can occur. For both types of alarm,

the digital alarm output (C8-DO8) will be closed and an alarm will be

indicated in the upper right corner of the display when an alarm is

generated.

6.1. Unit alarms

When a unit alarm occurs, the central control will no longer use the

unit (or group of units connected to the same RTD-W), and the

remote controller of this unit (or group of units) will be set to OFF.

This implies that the alarm can no longer be seen on the remote

controller. (ON/OFF LED is OFF and no error code). However, the

alarm can be seen on the central control in the 'Unit info' menu.

After the cause of the alarm is tackled, the unit has to be switched ON

manually (press the ON button on the remote controller). The unit will

then be controlled again by the central control and will switch ON or

OFF as required.

6.2. System alarms

Following system alarms can occur:

 Faulty common leaving water sensor

When the common leaving water sensor indicates a value below

0°C or above 150°C (open sensor), an alarm is generated and

all units are switched ON in the currently requested mode up to

the currently requested setpoint.

Units configured for heating a centralized DHW tank are also

switched to room heating, but when DHW heating is requested,

the setpoint will be increased and the 3-way valve will be

energized, as in the normal DHW mode.

 Faulty domestic hot water sensor (centralized tank)

When the domestic hot water sensor indicates a value below

0°C or above 150°C (open sensor), an alarm is generated and

all units configured for DHW heating are operated for DHW

heating and the DHW 3-way valve is energized when the DHW

mode is requested.

(The system operates as if it sees a DHW temperature that

never reached the setpoint).

 Backup heater alarm

When the backup heater alarm is active (X2-M closed), an alarm

is generated.

INFORMATION

Set the schedule timer on the units to OFF.

INFORMATION

General note on schedule settings:

Settings with time 00:00 are neglected.

INFORMATION

There is no need to define the setpoint on the units.

The setpoint is transferred by the central control.

Make sure the weather dependent function on the

units is set to OFF!

INFORMATION

This setting may also be available on the units. Make

sure the setting on the unit is equal to or higher than

the setting on the central control.

INFORMATION

This setting only needs to be done in case of a

centralized tank! Centralized tank must be set in the

installer settings for this menu to be accessible.