Sub-Zero SZ-CR2 - Page 15

SZ-CR2 14
Function: To set type of computation for Defrost Time
Duration.
This parameter is used to decide the time calculation for
Defrost to happen for both Compressors.
When set to,
(0)
= Defrost Frequency time calculation will
start once the Controller is ON (Real
Time).
(1)
= Defrost Frequency time calculation will
be done only when Compressor is ON.
Note:
This parameter is considered only if P71, P72 not equal to
0.
Min.
Max.
Fac.
Function: Defrost duration for Compressor1.
This is the maximum amount of time allowed for a
defrost. If set to 0, there will be no defrost cycle.
Example: If this parameter is set to 15 minutes, and P81
Parameter is set at 6 hr. Then ‘6 hr’ after power is applied
to the controller, defrosting for 15 minutes will take
place. This cycle will repeat every ‘6 hr’.
Note:
This parameter is not considered if CS = C2.
Min.
Max.
Fac.
0 Min
99 Min
30 Min
Function: Defrost duration for Compressor2.
This is the maximum amount of time allowed for a
defrost. If set to 0, there will be no defrost cycle.
Example: If this parameter is set to 15 minutes, and P82
Parameter is set at 6 hr. Then ‘6 hr’ after power is applied
to the controller, defrosting for 15 minutes will take
place. This cycle will repeat every ‘6 hr’.
Note:
This parameter is not considered if CS = C1.
Min.
Max.
Fac.
0 Min
99 Min
30 Min
Function: This parameter is used to set the frequency for
Defrost Cycle for Compressor1.
This is the amount of time between two Defrost Cycles.
Example: As explained for P71 Parameter.
Note:
• This parameter is not considered if CS = C2 and
P71 = 0.
Min.
Max.
Fac.
1 Hr
31 Hrs
6 Hrs