Heatcraft Refrigeration Products H-IM-79E Manuale Utente
35
Service Record
Date of Start-up
Location Address
CONDENSING UNIT
MODEL #
SERIAL #
COOLER UNIT
MODEL #
SERIAL #
FREEZER UNIT
MODEL #
SERIAL #
ELECTRICAL
•
Check Primary Supply voltage.
If 208 V, change transformer wiring in the
Cooler and Freezer to the 208 V tap
Cooler and Freezer to the 208 V tap
YES
• Check Compressor Amps for COOLER and
FREEZER compressors. Should match
nameplate.
FREEZER compressors. Should match
nameplate.
YES
NO
PIPING
• Is suction line trapped at the Cooler?
YES
NO
• Is suction line trapped at the Freezer?
YES
NO
DRAIN LINES
• Are drain lines sloped properly?
YES
NO
• Is drain line trapped outside the Cooler?
YES
NO
• Is drain line trapped outside the Freezer?
YES
NO
• Is heat tape wrapped along entire length of
the drain line in the Freezer?
the drain line in the Freezer?
YES
NO
• Is heat tape plugged in and heating the drain
line?
line?
YES
NO
INSULATION
• Are Liquid lines fully insulated?
YES
NO
• Are Suction lines fully insulated?
YES
NO
SETTINGS
• Check Beacon II board settings for the
following:
following:
FREEZER
Refrigerant Type
R404A
Box Setpoint Temp.
-10°F.
Superheat
8°F.
No. of Defrost / Day
4
Defrost End Temp.
65°F.
COOLER
Refrigerant Type
R22
Box Setpoint Temp.
35°F.
Superheat
8°F.
No. of Defrost/Day
2
Defrost End Temp.
50°F.
SYSTEM CHECKS
• Check Compressor Superheat for the
COOLER (Should be between 20°F. & 30°F.)
COOLER (Should be between 20°F. & 30°F.)
YES
NO
• Check Compressor Superheat for the
FREEZER (Should be between 20°F. & 30°F.)
FREEZER (Should be between 20°F. & 30°F.)
YES
NO
• Force unit into a Defrost Check heater amps.
Should match nameplate amps.
Should match nameplate amps.
YES
NO
• Check LPS Time Delay Relays. Should be
set at 1 minute for both the COOLER and
FREEZER.
set at 1 minute for both the COOLER and
FREEZER.
YES
NO
• Check Low Pressure Switch on FREEZER. Should
be set at 0 psig Cut-out/10 psig Cut-in.
YES
NO
• Did FREEZER and COOLER cycle off on LPS at
Setpoint Temperature?
YES
NO
• Is the sight glass free of bubbles?
YES
NO
• Are the COOLER and FREEZER fans at proper
speeds?
YES
NO
• Check system for refrigerant leaks. Are there any
leaks on the COOLER, FREEZER, CONDENSING
UNIT or INTERCONNECTING PIPING?
UNIT or INTERCONNECTING PIPING?
YES
NO
• Check system piping for unusual vibration or
noise. Is there any unusual vibration or noise on
the COOLER, FREEZER, CONDENSING UNIT or
INTERCONNECTING PIPING?
the COOLER, FREEZER, CONDENSING UNIT or
INTERCONNECTING PIPING?
YES
NO
• Start the FREEZER only. Does the compressor
start and evaporator fans run for this FREEZER?
YES
NO