Controls And Adjustments; Emerson Pressure Control Settings - Hussmann Freedom Line series Installation & Operation Manual

R
2-12
efRIgeRatIon
Refrigeration Controls
Product
Model
Application
Medium Temp.
CF5X
(Dairy, Deli,
Produce)
Medium Temp.
DF5NX
(Dairy, Deli)
Medium Temp.
DDF5NX
(Dairy, Deli)
1. The controller controls refrigeration
temperature. This is factory installed in the
control panel. Adjust this control keypad to
maintain the discharge air temperature shown.
Measure discharge air temperatures at the
center of the honeycomb.
To ensure a thorough defrost, the defrost must
be terminated by the temperature termination
setting — not by time.
For medium temperature models, defrost is
time initiated and time terminated.
Blocked drain lines will cause water to back
up in the case and spill onto the floor, causing
a slip hazard.
P/N 0527427_M
/ e / c
lectRIcal

CONTROLS and ADJUSTMENTS

Discharge Air Defrost
Frequency
Temperature
(per day)
32° F
31° F
38° F
U.S. & Canada 1-800-922-1919 • Mexico 1-800-890-2900 • WWW.HUSSMANN.COM
ontRolleR
Defrost Controls
Type of
Defrost
4 Off Time
4 Off Time
1 Off Time
EMERSON PRESSURE CONTROL
ADJUSTMENT SETTING
Locate the Emerson Electronic Unit
Controller pressure safety control located on
the Copeland Condensing Unit. Follow the
instructions shown on the Emerson EUC, check
and adjust the LOW and HIGH side settings.
Recommended settings for R-404A refrigerant
are: LOW side cut-out is 10 psig, cut-in is 25
psig. HIGH side cut-out is 350 psig.
Failsafe
Termination
Time
Temperature
(Minutes)
45
48° F
45
48° F
50
40° F