Controls And Adjustments - Hussmann microSC MDN-BA Installation & Operation Manual

P/N 9FQ-6-P110-075-00_B
Model Product Application
MDN4775BA/SA
Med Temp ‐ DOE

CONTROLS AND ADJUSTMENTS

MDN3575BA/SA Med Temp ‐ NSF 7
The controller controls refrigeration temperature . The controller is factory installed in the control
panel mounted on the merchandiser's fascia .
55
50
Discharge air temperatures should be measured at the center of the honeycomb . Defrosts are time
45
initiated and temperature terminated for these models . The defrost setting is set in the factory .
40
The product application is factory set for Med . Temp . - NSF7 as shown below .
35
30
25
20
Model Product Application
MDN4775BA/SA
Med Temp ‐ DOE
MDN3575BA/SA
*Med Temp ‐ NSF 7
*Factory Setting
Model Product Application
MDN4775BA/SA
Med Temp ‐ DOE
MDN3575BA/SA Med Temp ‐ NSF 7
55
50
45
40
35
30
25
20
Model Product Application Discharge Air Temperature ( Avg Ref mode ) Controller Set Point ( ° F ) Defrost Frequency ( per day ) Type of Defrost Temp. Termination Failsafe time ( min )
MDN4775BA/SA
Med Temp ‐ DOE
MDN3575BA/SA
*Med Temp ‐ NSF 7
*Factory Setting
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
Discharge Air Temperature ( Avg Ref mode )
25 ° F ‐ 27 °F ( ‐4 °C to ‐3 °C )
MDN4775BA/SA @ NSF Type 2 Conditions ‐ Discharge Air Temperature
Discharge Air Temperature ( Avg Ref mode ) Controller Set Point ( ° F ) Defrost Frequency ( per day ) Type of Defrost Temp. Termination Failsafe time ( min )
25 ° F ‐ 27 °F ( ‐4 °C to ‐3 °C )
Discharge Air Temperature ( Avg Ref mode )
25 ° F ‐ 27 °F ( ‐4 °C to ‐3 °C )
MDN4775BA/SA @ NSF Type 2 Conditions ‐ Discharge Air Temperature
27 ° F ( ‐ 3 ° C )
25 ° F ‐ 27 °F ( ‐4 °C to ‐3 °C )
25 ° F ( ‐ 4 ° C )
Update this table with the info described
below:
We are adding the controller settings for each
application
Controller Set Point ( ° F ) Defrost Frequency ( per day )
27 ° F ( ‐ 3 ° C )
25 ° F ( ‐ 4 ° C )
Update this table with the info described
27 ° F ( ‐ 3 ° C )
below:
6
We are adding the controller settings for each
25 ° F ( ‐ 4 ° C )
application
Controller Set Point ( ° F ) Defrost Frequency ( per day )
27 ° F ( ‐ 3 ° C )
6
25 ° F ( ‐ 4 ° C )
6 Off Time
Type of Defrost
6 Off Time
Off Time 45 ° F ( 7 ° C )
Type of Defrost Temp. Termination
Off Time 45 ° F ( 7 ° C )
45 ° F ( 7 ° C ) 50
Open Vertical Merchandisers
2-3
Temp. Termination Failsa
45 ° F ( 7 ° C )
50
Failsafe time ( min )
50