4-4
M
aintenance
P/N 2400205_J
U.S. & Canada 1-800-922-1919 • Mexico 1-800-522-1900 • www.hussmann.com
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
x
Verify
that all the panels,
shields
and covers are in place.
Technician Notes:
Form HSCW03 Rev-29 OCTOBER13
P/N
0525210_C
