Hussmann MPCETNM6S, Installation & Operation Manual

Page: 27 / 40

P/N 3086855_C 4-5
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 U.S.A.
MPCETNM6S
Self-Contained Refrigeration Equipment Maintenance Check List
* * * * * Warranty does not cover issues caused by improper installation or lack of basic preventative maintenance. * * * * *
Record starting date
Store Name and Number
Store Address
Unit Model Number
Unit Serial Number
Contractor/Technician
Technician
PM date
PM activity-For v is ual inspection items, denote "ok or
complete" in the column to right when PM has been
performed . For measured data requested, record data
requested in the appropriate column to the right)
Quarterly
Semi-
Annually
Ql Q2 Q3 Q4 Ql Q2 Q3 Q4
Check in with store manager, record any complaints or issues
they have wi th unit.
x
Loo k unit over for any damage, vibratio n s or abnormal noise.
x
Verify unit is level side to side and front to rear.
x
Confirm refrigerant lines properly are secured and not touching
or rubbing other lin es, wires or frame work.
x
Verify fan motors and motor mounts are ti ght .
x
Confirm fan blade/s are tight and not rubbing or hitting.
x
Make sure all electrical connections, factory and field, are tight.
x
Verify electrical connections at lamp s are they secure and dry.
x
Check for and replace any frayed or chaffed wiring.
x
Check a ll electrical wiring make sure it is secured and not on
any sharp edges or hot lines.
x
Check for air disturbances external l to the unit. Heat and air
registers, fans, a nd doors etc.
x
Check for wa ter leaks.
x
Clean evaporator coil/s and fan blade/s. Do not use an acid
base cleaner. Rinse off any cleaner residue.
x
Clean discharge air honeycombs or grilles. Do not use an acid
base cleaner. Rinse off any cleaner residue.
x
Clean condenser coil/s and fan blade/s. Do not use an acid base
Cleaner. Rinse off any cleaner residue.
x
Clean condensate drain pan and drain lin e.
x
Verify condensate drain lin es are clear and functioning.
x
Record vo ltage reading at unit with unit off?
x
Verify condenser and evaporator fans are working.
x
Record condenser air inlet temperature
x
Record condenser air outlet temperature
x
I s condenser air inlet or air exhaust restricted or recirculating?
x
Verify there are no visua l oil or refrigerant l eaks.
x
Record voltage reading w ith unit running.
x
Record compressor amp draw.
x
Record defrost heater voltage and amp draw.
x
Record anti-sweat heater voltage and amp draw.
x
Record case product temperature.
x
Record unit discharge air temperature.
x
Record unit return air temperature.
x
Record ambient conditions around unit (wet Bulb temperature
and dry bulb temperature).
x
Check product lo ading, do not load beyond the units load limit s.
x
Verify clearances o n sides/back of unit.
x
Check unit controller for proper operation. See controller or 1/0
Manual for proper controller operation .
x
Confirm door switches function.
x
Verify unit doors and lids work and are sealed correctly.
x
Verify that all the panels, shields and covers are in place.
x
Technician Notes:
Form HSCW03 Rev-29 OCTOBER13 P/N 0525210_C