Technical information

Alarm configuration parameters

Parameters Description Level VS Unit Max. Min. Value

P01 Alarm delay by flow switch at start-up. U 63 (R/W) Seconds 150 0 20

P02 Alarm delay by flow switch with unit in operation. U 64 (R/W) Seconds 120 0 5

P03 Alarm delay by low-pressure switch at start-up. U 65 (R/W) Seconds 200 0 60

P05

Alarm reset

6= High and low-pressure switch manual reset at

third activation in one hour. Antifreeze control is

manually reset

F 67 (R/W) 6

P06

Cool and heat cycle symbols.

1= "Sun" heat cycle, "Snowflake" cool cycle

0= "Sun" cool cycle, "Snowflake" heat cycle

F 19 (R/W) 1 0 1

P08

Digital input 1 for flow switch Do not modify this

parameter

F 69 (R/W) 1

P09

Digital input 2 for the remote Cool/Heat function.

Do not modify this parameter

F 70 (R/W) 9

P15

Low-pressure alarm selection.

0= Inoperative with the compressor OFF

1= Operative with the compressor OFF

F 76 (R/W) 1 0 1

P16 High-temperature alarm for return water U 38 (R/W) °C 80 -40 30

P17 High-temperature delay at start-up U 77 (R/W) Minutes 250 0 30

P18

High-pressure alarm by transducer

0= function disabled

F 39 (R/W) bar 99,9 0,1 41

P19 Low-temperature alarm for return water U 40 (R/W) °C 80 -40 10

P20

Alarm activation for high and low water temper‐

ature at start-up.

1= function enabled

0= function not enabled

U 20 (R/W) 1 0 0

1 Technical Information

1.13 Operating instructions