EasyManuals Logo

Heatcraft BOHN MAC8X User Manual

Heatcraft BOHN MAC8X
52 pages
To Next Page IconTo Next Page
To Next Page IconTo Next Page
To Previous Page IconTo Previous Page
To Previous Page IconTo Previous Page
Page #47 background imageLoading...
Page #47 background image
47
Startup Checklist
Date of Start-up
Store 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
YES
Check compressor amps for COOLER and
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?
YES NO
Is heat tape plugged in and heating the drain
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:
FREEZER
Refrigerant Type R448A
Box Setpoint Temp. -10°F.
Superheat 8°F.
No. of Defrost/Day 4
Defrost End Temp. 65°F.
COOLER
Refrigerant Type R448A
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.)
YES NO
Check compressor superheat for the
FREEZER (Should be between 20°F. & 30°F.)
YES NO
Force unit into a defrost check heater amps.
Should match nameplate amps.
YES NO
Check LPS time delay relays. Should be
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 set-
point 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?
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?
YES NO
Start the FREEZER only. Does the compressor start and
evaporator fans run for this FREEZER?
YES NO

Questions and Answers:

Question and Answer IconNeed help?

Do you have a question about the Heatcraft BOHN MAC8X and is the answer not in the manual?

Heatcraft BOHN MAC8X Specifications

General IconGeneral
BrandHeatcraft
ModelBOHN MAC8X
CategoryHeat Pump
LanguageEnglish

Related product manuals