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5b) Defrost: Freezer (auxiliary code P-6 and later) and RFH1-SSB-HD Freezer
(1) Time-Initiated Defrost or Manual-Initiated Defrost
a1)
Freezer (auxiliary code P-6 and later)–LEDs 1 (DH, DrH, DctH, and CordH)
and 3 (EvapFM off) are on:
DT terminates or manual defrost initiated.
20-minute minimum defrost timer starts. 1-hour maximum defrost timer starts.
DH, DrH, DcTH, and CordH energize. "dEF" displayed on DB. If energized,
Comp, ConFM, and EvapFM de-energize.
a2)
RFH1-SSB-HD Freezer–LEDs 1 (DH), 3 (EvapFM off), and 5 (CPH and
DrH (auxiliary code Q-5 and later)) are on:
DT terminates or manual
defrost initiated. 20-minute minimum defrost timer starts. 1-hour maximum
defrost timer starts. CPH and DrH (auxiliary code Q-5 and later) continue. DH
energizes. "dEF" displayed on DB. If energized, Comp, ConFM, and EvapFM
de-energize.
The time-initiated defrost is factory set to 6 times per day (every 4 hours). For
further details, see "II.E.1.b) Defrost Frequency."
Before changing this setting, contact Hoshizaki Technical Support at
1-800-233-1940 for recommendations.
Note: Some models may utilize any combination of the following heaters during defrost:
Duct Heater, Cord Heater, or Drain Heater. See "VII.Wiring Diagrams" for specific
model details.
(2) Defrost Termination: Defrost Recovery Step 1
a1)
Freezer (auxiliary code P-6 and later)–LEDs 3 (EvapFM off), 4 (Comp),
and 5 (ConFM) are on:
DTh warms to 100
°
F (38
°
C) or 1-hour defrost timer
terminates. DH de-energizes. 5-minutes later, Comp and ConFM energize.
a2)
RFH1-SSB-HD Freezer–LEDs 3 (EvapFM off), 4 (Comp and ConFM), and
5 (CPH and DrH (auxiliary code Q-5 and later)) are on:
DTh warms to
100
°
F (38
°
C) or 1-hour defrost timer terminates. DH de-energizes. 5-minutes
later, Comp and ConFM energize. CPH and DrH (auxiliary code Q-5 and later)
continue.
(3) Defrost Termination: Defrost Recovery Step 2
a1)
Freezer (auxiliary code P-6 and later)–LEDs 4 (Comp) and 5 (ConFM) are
on. LED 3 (EvapFM on) is off
: DTh cools to 70°F (21°C) or lower, EvapFM
energizes.
a2)
RFH1-SSB-HD Freezer–LEDs 4 (Comp and ConFM) and 5 (CPH and DrH
(auxiliary code Q-5 and later)) are on. LED 3 (EvapFM on) is off:
DTh cools
to 70
°
F (21
°
C) or lower, EvapFM energizes.
