Daikin EWYQ230DAYN [366/524] Changeable digital inputs

Functional Control for a Standalone Unit ESIE06-05

2–140 Part 2 – Functional Description

3.12 Changeable digital inputs

Introduction 4 changeable digital inputs are available and can be assigned to 12 different functions in the service

menu.

Functions overview Possible settings for changeable digital inputs.

■ When NONE is selected

-No function is allocated to this changeable input.

■ When STATUS is selected:

- In the I/O menu the status of Changeable input (connected switch) can be displayed

(open/closed).

■ When DUAL SETPOINT is selected:

- A digital input (voltage free contact) can be used to switch between 2 specified setpoints.

- Open contact --> Setpoint 1.

■ When REMOTE ON/OFF is selected:

- A digital input (voltage free contact) can be used to switch the unit ON and OFF.

- Closed contact --> chiller ON.

- Remote ON/OFF has priority on “unit ON/OFF password” (no password needed when Remote

on/off is selected)

■ When FAN FORCED ON is selected :

- A digital input (voltage free contact) van be used to switch on the fans of the unit (by use of

changeable input).

■ When CAP. LIMIT 25% / 50% / 75 % / SET is selected :

- A digital input (voltage free contact) can be used to limit the maximum capacity of the unit.

■ In case Limit Set mode is selected, each compressor must be defined (C11/C12/C21/C22).

- OFF: These compressors will always be switched off

- ON : These compressors will still be used by the thermostat according to the required load.

■ When LOW NOISE is selected : (only if OPIF is installed)

- A digital input (voltage free contact) can be used to switch on the Low noise mode.

■ When FREE COOLING REQ is selected:

- A digital input (voltage free contact) can be used to switch on the Free cooling mode.

30-40 HP 50-100 HP Remarks

Lim 25 - 25% 1 comp is running

Lim 50 50% 50% 2 comps running

Lim 75 - 75% 3 comps running

Lim SET User can select number of compressors running