Specifications

RK0YG302 © Danfoss 04/2007 51
Controller application overview
Example: Controller for application number 3 satises requirement for
• room temperature control (thermostat) by pump down or compres-
sor start/stop.
• time controlled defrost using hot gas or electricity
• fan motor control
Function
Application no.
1234
Room temperature control by pump
down or compressor start/stop
Natural defrost
Temperature controlled defrost with
electricity or hot gas
Time-controlled defrost with electricity
or hot gas
Fan motor control
Application no. 1
Application no. 2
Application no. 3
Application no. 4
EKC 301
Room temperature control by pump down.
Natural defrost on pump down.
Room temperature control by compressor start/stop.
Natural defrost on compressor stop.
Room temperature control by pump down.
Temperature-controlled electric defrost.
Room temperature control by compressor
start/stop.
Temperature-controlled electric defrost.
Room temperature control by pump down.
Temperature-controlled hot gas defrost.
Room temperature control by compressor
start/stop.
Time-controlled electric defrost.
Room temperature control by pump down.
Time-controlled electric defrost.
Room temperature control by pump down.
Time-controlled hot gas defrost.
Room temperature control by compressor
start/stop.
Temperature-controlled electric defrost.
Room temperature control by pump down.
Temperature-controlled hot gas defrost.
Room temperature control by pump down.
Temperature-controlled electric defrost.