Daikin EWAP460MBYN [242/452] Capacity limitation

Functional Control for a Standalone Unit ESIE05-07

2–46 Part 2 – Functional Description

2.11 Capacity Limitation

Introduction This function allows you to limit the capacity of the chiller. Depending on the adjusted mode, it is

possible to control the capacity limitation via remote digital input, programmable schedule timer. From

software version V3.0M6 onwards it is also possible to activate and deactivate the limitations manually

or through BMS.

The limitation settings can be set in the user settings menu. In manual mode this function is not active.

If the limitation of that circuit is activated then:

P It is not possible to go to a higher capacity than the limitation. The compressor will stop uploading

when compressor capacity > (limit x - 5 seconds download).

P If the present capacity is higher then the limitation than the compressor will download till:

compressor capacity < (limit x - 5 seconds download).

Remote digital

input mode

There are four different possible limitation settings which can be set in the user settings menu (L1CIR1

CIR2, L2 CIR1 CIR2, L3 CIR1 CIR2 and L4 CIR1 CIR2).

To activate the remote digital input mode just set one of the digital inputs to the desired setting in the

service menu (DI1, DI2, DI3 and DI4) (possible settings: CAP. LIMIT 1, 2, 3 or 4) and connect the

limitation switch to the right remote digital input terminals.

Schedule timer

mode

The schedule timer screen of the user settings menu allows the user to define the capacity limitation

setting according to a programmed time.

P MON, TUE, WED, THU, FRI, SAT and SUN: are used to define to which group each day of the

week belongs (-/G1/G2/G3/G4).

P For each of the four groups up to nine actions can be set, each with their respective timing.

P Beside these four groups there is also a holiday period group which is set the same way as the

other groups. Up to 12 holiday periods can be entered in the HD PERIOD screen. During these

periods the schedule timer will follow the settings of the holiday period group.

Unit Limitation

LIM 1

This unit Limitation “ LIM1” allows the user to use the limitation setting 1 (L1, CIR1, CIR2) without the

need of a digital input, or schedule timer. To activate this unit Limitation just set “ Mode LIM1” and

change the capacity of L1, CIR1 and CIR2 to the desired value.

Remark: Only the first limitation setting (L1) can be used in “LIM1” mode.

ESIE05-07.book Page 46 Wednesday, October 11, 2006 10:42 AM