Configuration Manual

Version Document

001

ccess V4.X Configuration manual

26 (56) 2018-07-11

Fan levels

Activate Configuration > function Configuration > Function Activation

Fan levels

 Normal

 Low-Normal

 Normal-High

 Low-Normal-High

Select the fan stages to use in operation.

The time settings in the scheduler show only the selected steps.

Setpoints for Fans need to be updated.

Changeover

Configure: Configuration > Function Configure

 Changeover 1 sequence for heating Heater

 Changeover 1 sequence for cooling Cooler

 Changeover 2 sequence for heating disable

 Changeover 2 sequence for cooling desible

Operation settings: Data & Settings > In-/output status > Digital input (Analogue output)(digital

output)*

Change-over is a function for installations with 2-pipe systems. It makes it possible

to use the same pipe for both heating and cooling, depending on whether heating

or cooling is required.

A special analogue output signal, "Changeover 1 (2)*

", is used for Change-over

control. Switching between heating and cooling can be done in two ways. A digital

Change-over input signal “Cooling/(heating) changeover 1(2) is normally used.

Open contact gives heating control and closed contact gives cooling control. If the

input has not been configured, change-over is handled by the internal controller

signal. The output signal (AO “changeover 1(2)” and DO “changeover 1(2)”) will

follow the two regular output signals "Heating" and "Cooling". For heating control,

the digital outputs Heating “Sequence-A start” or “Sequence-A pump” are active.

For cooling control the digital outputs Cooling “Sequence-C start” or “Sequence-C

pump” are activate.

If frost protection sensor has been configured, it will function in the usual way

when heating is active. However, when cooling is active, it will only be used for

indicating temperature.

Digital input (Analogue output)(digital output) = Digital input, Analogue outputs

and Digital outputs

Changeover 1(2) = Changeover 1 and Changeover 2