AIRFLOW & PRODUCT LOAD
Hillphoenix cases provide maximum product capacity within the
refrigerated air envelope. Please keep products within the ap-
propriate load limit.
It is important that you do not overload the food product display
so that it impinges on the airfl ow pattern (Fig. 12). Overload-
ing will cause malfunction and the loss of proper temperature
levels.
DEFROST & TEMPERATURE CONTROLS
Cases are equipped with either Hot Gas or Timed-Off defrost at
the owner's option.
The hot gas defrost termination sensor bulb and probe are
attached to the dump line which is in the front, left-hand side
of the case.
W A R N I N G
Always keep product within the designated air
curtain. Failure to do so may result in case
malfunction and product losing proper tempera-
ture, resulting in sub-standard operation and
increased chances of food contamination.
▲
Fig. 12 Airflow pattern (QC-30-R)
DETERMINING SUPERHEAT
To identify proper superheat settings, complete the following:
1. Obtain suction pressure from access port; obtain suction
line temperature from area near TXV bulb at the outlet of
evaporator coil.
2. Using the suction pressure reading, convert pressure to
temperature using temperature pressure chart (see
Appendix C1).
3. Finally, subtract the converted temperature reading from
the actual temperature reading for superheat setting.
AIRFLOW & DEFROST
18
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