Daikin EWYQ180DAYN [374/524] Unit 1 unit 1 master master

Functional Control for a Standalone Unit ESIE06-05

2–148 Part 2 – Functional Description

A1 ~A4 Load up request of 1~ 4 compressors

B no action

C1~C4 load down request of 1~ 4 compressors.

D Inlet setpoint.

Remark: The EWYQ080DAYN* has a modified control in heating mode when the ambient temperature

is <

5 °C.

■ If the ambient temperature < 5 °C and the master makes a request to load up a EWYQ080 or

EWYQ100 unit, then the 2 compressors of this unit will start up (30 sec between the startup of the

first compressor and the second compressor).

Settings on the

controller

DICN settings for the PCASO controller

Remark: The remote start/stop, is the same as with individual units. In case of DICN, the remote

start/stop to be used, is the one from then master unit. In case of a disconnect unit, you must use the

remote start-stop of this unit.

STEP 1 : Go to the Service menu, submenu communication.

1 Enable the DIII communication on each chiller

2 Specify a different address for each chiller

3 Enable the power parameter on one chiller in the DICN network (Master).

= Setpoint

Inlet water temperature

condenser (°C)

DIII:

ADDR:

POWER:

YES YES YES YES

1-00 1-01 1-02 1-03

YNNN

Unit 1

Master

Unit 2

Slave 1

Unit 3

Slave 2

Unit 4

Slave 3