Daikin EWYQ230DAYN [372/524] Dicn only inlet control

Functional Control for a Standalone Unit ESIE06-05

2–146 Part 2 – Functional Description

■ Loadup request of 1 compressor: request to add one additional compressor.

■ Loadup request of 2 compressors: request to add 2 additional compressors (with interval of 15

seconds in between).

■ The maximum number of compressors that can possibly be added in 1 request is limited to the total

number of units that are present in the DICN setup.

■ Example: A DICN Setup with two units meats load up requests of maximum two compressors at a

time.

Default and limit

values

Each 180sec (loaduptimer) 4 comp.

(15sec between

Each 180sec (loaduptimer) 3 comp.

(15sec between

Each 180sec (loaduptimer) 2 comp.

(15sec between

Each 180sec (loaduptimer) 1 comp.

DICN: ONLY INLET CONTROL !!!!!!!!!!!

compressor request

inlet water temperature evaporator (°C)

= Setpoint

Inlet control Default value Lower limit Upper limit

Step difference -a (K) 4.0(*) ---- ----

Step difference -b (K) 3.6(*) ---- ----

Step difference -c (K) 0.4(*) ---- ----

Loadup timer (sec) 180 15 300

Loaddown timer (sec) 180 15 300

Setpoint cooling (°C) 12.0 7.0 23.0

Setpoint heating (°C) 40.0 20.0 45.0