Configuration Manual

ManualsBrandsSystemair ManualsAir Handling UnitsTopvex SR100-L-EL7,1 230V3~ - S-SR100-L-N-ePM1/60-RC-N-C2-EL7,1-ePM10/60-AC

Version Document

001

ccess V4.X Configuration manual

15 (56) 2018-07-11

Sequence Heating Cooling Start

Heating

Start

Cooling

Sequence name

Sequence-A 3 2 Off 0% 0% Heating

Sequence-B 1 1 0% 0% Exchanger

Sequence-C Off 2 0% 0% Cooling

Sequence-D Off Off 0% 0% Recirculation 1

Sequence-E Off Off 0% 0% Recirculation 2

Sequence-F Off Off 0% 0% Fan heating/cooling

Sequence-G 2 Off Off 0% 0% Heating 2

Sequence-H Off Off 0% 0% Cooling 2

Sequence-I Off Off 0% 0% Exchanger extract

Sequence-J Off Off 0% 0% Extra heating/cooling capacity

Configure: Configuration > Function Configuration > Function Activation> Sequence Configure

type > Heating (Heating 2)

Heating type:

 Water

 Electric

 Combi battery

 Condenser (DX)

Water heating

Control

When the unit is in running mode the heating valve is controlled by the analogue

output and digital output (“Sequence-A pump”) for pump control and/or signal

(“Sequence-A start”) for start heating.

Pump indication

A feedback from pump (“Feedback sequence-A”) can be used, “running indication

or alarm indication.

Frost protection temperature sensor

The heater return water temperature is measured using the analogue input (”Frost

protection sensor”). Low temperatures will generate an internal, proportional signal

that is used to force the heating valve open thereby preventing freeze-up of the

heater.

The internal signal will begin to rise as the frost protection temperature falls below

“Alarm limitation running mode” + “P-band running mode” in order to reach 100 %

output when the signal has fallen to “Alarm limitation running mode”.

Frost guard

When ”Internal signal” reaches 100 % or the digital input (”Defrost switch”) is

activated, the unit is shut down, the heating output is set to completely open mode

and an alarm is activated. The unit is restarted when the alarm has been

acknowledged and the temperature for the frost protection sensor has risen above

“Alarm limit frost” + “P-Band”.

The frost protection alarm limits is set in the Data & settings > Temperature control

> Heating and/or Heating 2.