hussman 406928 User Manual
Euro Deli
Service Merchandisers
Delicatessen Merchandisers
(Includes Wedge Installation)
Installation &
Operation Manual
Shipped With Case Data Sheets
P/N 406928.
Impact Series
April 2001
IIMMPPOORRTTAANNTT
Keep in store for future reference!
Merchandisers
P/N 406928 iii
TTAABBLLEE OOFF CCOONNTTEENNTTSS
INSTALLATION
Location . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
Front Glass Caution . . . . . . . . . . . . . . . . . 1-1
Shipping Damage . . . . . . . . . . . . . . . . . . . 1-2
Exterior Loading . . . . . . . . . . . . . . . . . . . . 1-2
Merchandisers Shipped with End Installed 1-2
Shipping Braces . . . . . . . . . . . . . . . . . . . . 1-2
Shipping Rider . . . . . . . . . . . . . . . . . . . . . 1-2
Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
Joining Instructions . . . . . . . . . . . . . . . . . . 1-4
REFRIGERATION / ELECTRICAL
Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . 2-1
Refrigerant Piping . . . . . . . . . . . . . . . . . . . 2-1
Insulation . . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Suction Line . . . . . . . . . . . . . . . . . . . . . . . 2-2
Liquid Line . . . . . . . . . . . . . . . . . . . . . . . . 2-2
Control Settings . . . . . . . . . . . . . . . . . . . . 2-3
Refrigeration Thermostat . . . . . . . . . . . . . . 2-3
Defrost Termination Thermostat . . . . . . . . 2-3
Merchandiser Electrical Data . . . . . . . . . . 2-4
Electrical Connections . . . . . . . . . . . . . . . . 2-4
Field Wiring . . . . . . . . . . . . . . . . . . . . . . . 2-4
Identification of Wiring . . . . . . . . . . . . . . . 2-4
DRIP PIPING AND SPLASHGUARDS
Waste Outlet and Water Seal . . . . . . . . . . . 3-1
Installing Drip Piping . . . . . . . . . . . . . . . . 3-1
Installing Splashguard and
Lower Front Panel . . . . . . . . . . . . . . . . . 3-2
Installing Bottom Rear Panel . . . . . . . . . . . 3-4
START UP / OPERATION
Start Up . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Stocking . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
Load Limits . . . . . . . . . . . . . . . . . . . . . . . 4-1
Load Limit Profiles . . . . . . . . . . . . . . . . . . 4-2
MAINTENANCE
Care and Cleaning . . . . . . . . . . . . . . . . . . . 5-1
Interior Cleaning Steps . . . . . . . . . . . . . . . 5-2
Removable Parts . . . . . . . . . . . . . . . . . . . 5-3
Fan Plenum . . . . . . . . . . . . . . . . . . . . . . 5-3
Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . 5-4
Removing Scratches from Bumper . . . . . . 5-4
SERVICE
Replacing Fan Motors and Blades . . . . . . . 6-1
Removing Polycarbonate Lamp Covers . . . 6-2
Electrical Service Receptacles . . . . . . . . . . 6-2
Replacing Fluorescent Lamps . . . . . . . . . . 6-3
Replacing Lamp Holders and End Caps . . 6-3
Replacing Electronic Ballast . . . . . . . . . . . 6-4
Replacing Cylinders —
Single Pane Glass . . . . . . . . . . . . . . . . . . 6-5
Replacing Single Pane Front Glass . . . . . . 6-6
Replacing Glass Hand Grip . . . . . . . . . . . . 6-7
Hinge Hardware . . . . . . . . . . . . . . . . . . . . 6-7
Repairing Aluminum Coils . . . . . . . . . . . . 6-8
WARRANTY
GARANTIA
IMPORTANT
KEEP IN STORE FOR FUTURE REFERENCE
Quality that sets industry standards.
This merchandiser conforms to the
Commercial Refrigerator Manufacturers Association
Health and Sanitation Standard
CRS-S1-96.
®
12999 St. Charles Rock Road • Bridgeton, MO 63044 U.S.A. • (314) 291-2000 • FAX (314) 298-4767
LOCATION
These merchandisers are designed for displaying
products in air conditioned stores where temperature is maintained at or below 75°F (24°C) and
relative humidity is maintained at or below 55%.
Placing refrigerated merchandisers in direct sunlight, near hot tables or near other heat sources
could impair their efficiency.
Like other merchandisers, these are sensiti ve to air
disturbances. Air currents passing around merchandisers will seriously impair their operation.
Do NOT allow air conditioning, electric fans,
open doors or windows, etc. to create air currents
around the merchandisers.
Product should always be maintained at proper
temperature. This means that from the time the
product is received, through storage, preparation
and display, the temperature of the product must
be controlled to maximize the life of the product.
P/N 406928 1-1
EEuurroo DDeellii MMeerrcchhaannddiisseerrss
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 (Printed in U.S.A.)
IINNSSTTAALLLLAATTIIOONN
The top cylinders, which allow the raising and
lowering of this glass, have been carefully
installed and tested for the proper tension before
shipment. Howev er , during shipment and storage,
the lubricant inside the cylinders may have settled.
This settling can cause excessive or uneven tension on the glass to the point of breakage.
To avoid any damage, please do the following
before completely raising the front glass.
1. Slowly raise and lower each glass section
6 times to a height of 6 in. (152 mm).
2. Increase the height to about 12 in. (305
mm) and raise and lower the glass 6 times.
3. Then raise the glass to the full extension
and lower.
This should release any settled lubricant in the
cylinders and prevent any stress on the front
glass.
Read before raising front glass.
CAUTION
!
6 in.
(152 mm)
SHIPPING DAMAGE
All equipment should be thoroughly examined for
shipping damage before and during unloading.
This equipment has been carefully inspected at
our factory. Any claim for loss or damage must be
made to the carrier. The carrier will provide any
necessary inspection reports and/or claim forms.
Apparent Loss Or Damage
If there is an obvious loss or damage, it must be
noted on the freight bill or express receipt and
signed by the carrier’s agent; otherwise, carrier
may refuse claim.
Concealed Loss Or Damage
When loss or damage is not apparent until after
equipment is uncrated, retain all packing materials
and submit a written request to the carrier for
inspection, within 15 days.
EXTERIOR LOADING
Do NOT walk on top of merchandisers or
damage to the merchandisers and serious personal
injury could occur. Merchandisers
ARE NOT
STRUCTURALLY DESIGNED TO SUPPORT EXCESSIVE
EXTERNAL LOADING such as the weight of a
person. Do not place heavy objects on the case.
MERCHANDISERS SHIPPED
WITH END INSTALLED
If the case was shipped with the end installed, two
long bolts were used to hold the shipping brace to
the end. If the shipping bolts are reinserted after
removing the brace, they will extend into the
product area. Therefore, be sure to replace these
bolts with the shorter bolts provided. Refer to the
detailed information provided in the separate
End Kit Instruction shipped with each end.
Note: Be careful not to damage the factory
installed end while moving the case. Make sure
that tools are positioned past the end and beneath
the merchandiser’s support bar.
SHIPPING BRACES
Move the fixture as close as possible to its permanent location and then remove all packaging and
shipping braces. Check for damage before discarding packaging. Remove all separately packed
accessories such as kits, and shelves.
Remove all nut retainers used with shipping
braces.
SHIPPING RIDER
Each case is shipped on a rider to protect factoryinstalled legs, and to make positioning the case
easier. Remove the rider after the case has been
positioned.
Note: Once the rider is removed, the case must
be lifted –NOT PUSHED– to reposition.
To remove the rider, remove screws attaching
each leg to rider. Remove screws holding rider
cross-members, then slide cross-members out
from between sides. Once cross-members are out,
slide the sides out.
1-2 INSTALLATION
P/N 406928
Do NOT remove shipping braces until
the merchandisers are
positioned for installation.
Do not walk or put heavy objects on case.
!
WARNING
CAUTION
!
LEVELING
Merchandisers must be installed level to
ensure proper operation of the refrigeration
system and to ensure proper drainage of
defrost water.
Set a long level (4 ft [1220 mm] or more) on
the upper front panel of the merchandiser.
Use an open-end wrench to turn leg levelers
until the merchandiser is level from end to
end and from front to back. Check all 6 legs
on 8 ft (2438 mm) cases, or 8 legs on 12 ft
(3658 mm) cases.
Note: To avoid removing concrete flooring,
begin lineup leveling from the highest point
of the store floor.
P/N 406928 1-3
EEuurroo DDeellii MMeerrcchhaannddiisseerrss
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 (Printed in U.S.A.)
Cross-Members
Sides
Screws
(each leg)
Screws
Shipping Rider
for 8 ft Case
(two each end
of each
cross-member)
Leg
U
Level on
Upper Front
Adjustable
Leg Leveler
Panel
MINIMUM
HEIGHT
MAXIMUM
HEIGHT
Raise
Lower
JOINING INSTRUCTIONS
Sectional construction means that two or more
merchandisers may be joined in line yielding one
long continuous display requiring only one pair
of ends.
All joints must be air-tight to prevent formation
of ice or condensation.
Refer to the detailed information provided in the
separate Joining Instruction shipped with each
case.
1-4 INSTALLATION
P/N 420057
REFRIGERANT
The correct type of refrigerant will be stamped on
each merchandiser’s serial plate. The case refrigeration piping is factory sealed, pressurized and
leak tested. Before making refrigeration hookups,
depress universal line valve to ensure that coils
have maintained pressure during shipment.
REFRIGERANT PIPING
Connection Location
The refrigerant line connections are at the righthand end of the merchandiser (as viewed from the
front) beneath the display pans. A sticker marks
the location of the connection “pod. ”The installer
must saw a hole through the pod to exit the case.
After connections have been made, seal this outlet
thoroughly. Seal both the inside and the outside.
We recommend using an expanding polyurethane
foam insulation.
Multiplexing
Piping of merchandisers operating on the same
refrigeration system may be run from merchandiser to merchandiser. DO NOT RUN REFRIGERANT
LINES THROUGH MERCHANDISERS THAT ARE NOT
ON THE SAME REFRIGERATION SYSTEM BRANCH as
this may result in poor refrigeration control and
compressor failure.
Interconnecting piping inside the merchandiser
must be located as shown below to allo w room for
lifting the hinged fan plenums and for clearance
beneath the display pans. The interconnecting
piping may be run outside the case.
Line Sizing
Refrigerant lines should be sized as shown on the
refrigeration legend that is furnished for the store
or according to ASHRAE guidelines. Refer to the
information on the next page for branch line
piping of Hussmann Equipment.
Oil Traps
P-traps (oil traps) must be installed at the base of
all suction line vertical risers.
Pressure Drop
Pressure drop can rob the system of capacity. To
keep the pressure drop to a minimum, keep the
refrigerant line run as short as possible using a
minimum number of elbows. Where elbows are
required, USE LONG RADIUS ELBOWS ONLY.
P/N 406928 2-1
EEuurroo DDeellii MMeerrcchhaannddiisseerrss
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 (Printed in U.S.A.)
RREEFFRRIIGGEERRAATTIIOONN // EELLEECCTTRRIICCAALL
Refrigeration lines are under pressure
and should be depressurized before
attempting to make any connections.
When brazing pipes be sure to use the
insulation blanket shipped with the
merchandiser to prevent damage to the
plastic case bottom.
!
WARNING
Piping Location
Display Pan
Fan
Coil
CAUTION
!
INSULATION
The suction and liquid lines should be clamped or
taped together and insulated for a minimum of
30 ft (9144 mm) from the merchandiser.
Additional insulation for the balance of the liquid
and suction lines is recommended wherever
condensation drippage is objectionable or lines
are exposed to ambient conditions.
SUCTION LINE
• Pitch in direction of flow.
• May be reduced by one size at one third of
case run load and again after the second third.
Do not reduce below the case suction line
size.
• Case suction lines should enter at the top of
the branch line.
LIQUID LINE
• May be reduced by one size after one half the
case run load. Do not reduce below the case
liquid line connection size.
• Take-offs to case liquid lines should exit the
bottom of the branch liquid line. Provide an
expansion loop for each evaporator take-off.
(Minimum 3 in. [76 mm] loop.)
2-2 REFRIGERATION
/ E
LECTRICAL
P/N 406928
Minimum Loop
3-in. (76 mm)
Liquid Line Take Off
8 Ft Case
(2438 mm)
Suction Line Return
12 Ft Case
(3658 mm)
Offtime Defrost
8 Ft Case
(2438 mm)
12 Ft Case
(3658 mm)
Liquid Line
Suction Line
CONTROL SETTINGS
Merchandiser data sheets are shipped with this
manual. The data sheets provide case control
settings and defrost data.
An evaporator pressure regulator or EPR
(primary control) and a 3 – 5ºF (1.7 – 2.7ºC)
differential thermostat (secondary control) must
control refrigeration temperature. The EPR must
be set to maintain the proper saturated evaporator
temperature as listed in the data sheets. The
thermostat must be set a couple degrees colder
than the discharge air temperature specified in the
data sheets. The thermostat will prevent product
freezing should the EPR temperature drift downward during reduced load periods (lights off,
lower ambient). The thermostat will be wired to
control the compressor motor contactor (single
compressor) or a liquid line solenoid valve
(parallel compressor systems).
Defrost is Off Time. Defrost control settings are
listed in the data sheets. When these merchandisers are connected to parallel compressor systems,
a suction stop valve must be used to isolate the
evaporator during defrost periods.
REFRIGERATION THERMOST AT
The bulb for the optional refrigeration thermostat
is located in the discharge air of the evaporator.
The optional refrigeration thermostat is located
behind the exterior rear panel.
DEFROST TERMINATION THERMOSTAT
The standard disc type defrost termination
thermostat is not adjustable. This thermostat
is clamped to the inlet of the coil on the lefthand (facing front) end of the merchandiser.
P/N 406928 2-3
EEuurroo DDeellii MMeerrcchhaannddiisseerrss
HUSSMANN CORPORATION • BRIDGETON, MO 63044-2483 (Printed in U.S.A.)
Standard Defrost
Termination
Thermostat
Loading...