hussman IGSS-FMSS-0301 User Manual
Manual
Installation
& Operation
/Chino
FMSS
Rev.0301
Case-front Self Service
FMSS
Case-front Self Service Refrigerated Merchandiser
p/n IGSS-FMSS-0301
INSTALLATION & OPERATION GUIDE
Ta b l e of Contents
IGSS-FMSS-0301
General Instructions
THIS BOOKLET CONTAINS INFORMATION ON:
General Instructions ................................................. 2
Cut & Plan Views ....................................................... 3
Installation (cont.) .................................................... 4
LEVELING.............................................................................................................. 4
Plumbing .................................................................... 5
WASTE OUTLET AND P-TRAP .............................................................................. 5
JOINT TRIM........................................................................................................... 5
Refrigeration ............................................................. 6
T-STAT LOCATION.................................................................................................. 6
Electrical .................................................................... 7
WIRING COLOR CODE ......................................................................................... 7
Wiring Diagram ........................................................ 8
User Information ...................................................... 13
STOCKING.............................................................................................................. 13
CASE CLEANING.................................................................................................... 13
Maintenance .............................................................. 14
ELECTRICAL PRECAUTIONS ................................................................................... 14
REPLACING FLUORESCENT LAMPS ....................................................................... 14
PLEXIGLASS & ACRYLIC CARE .............................................................................. 14
TIPS & TROUBLESHOOTING ................................................................................. 14
Specifications............................................................. 15
Appendices ................................................................ 16
APPENDIX A. – Temperature Guidlines .............................................................. 16
APPENDIX B. – Application Recommendations.................................................. 16
APPENDIX C. – Field Recommendations ............................................................ 16
APPENDIX D. – Recommendations to user ....................................................... 17
FMSS-Remote
The FMSS is a single-deck, refrigerated, self-service merchandiser, which offers additional related display when
positioned in front of a “Parent” service case.
SHIPPING DAMAGE
All equipment should be thoroughly examined for shipping damage before and during unloading.
This equipment has been carefully inspected at our factory and the carrier has assumed responsibility for safe
arrival. If damaged, either apparent or concealed, claim must
be made to the carrier.
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. The carrier will
supply necessary claim forms.
CONCEALED LOSS OR DAMAGE
When loss or damage is not apparent until after equipment
is uncrated, a claim for concealed damage is made. Make
request in writing to carrier for inspection within 15 days,
and retain all packaging. The carrier will supply inspection
report and required claim forms.
SHORTAGES
Check your shipment for any possible shortages of material. If a shortage should exist and is found to be the responsibility of Hussmann Chino, notify Hussmann Chino. If
such a shortage involves the carrier, notify the carrier imme-
diately, and request an inspection. Hussmann Chino will
acknowledge shortages within ten days from receipt of
equipment.
HUSSMANN CHINO PRODUCT CONTROL
The serial number and shipping date of all equipment has
been recorded in Hussmann’s files for warranty and replacement part purposes. All correspondence pertaining
to warranty or parts ordering must include the serial number of each piece of equipment involved, in order to provide the customer with the correct parts.
Keep this booklet with the case at all times for future reference.
/Chino
A publication of
Hussmann® Chino
13770 Ramona Avenue • Chino, California 91710
(909) 628-8942 FAX
(909) 590-4910
(800) 395-9229
The Hussmann warranty is printed on the back
of this guide.
2
Rev.0301
*24"
Cut & Plan Views
"
8
/
1
"
2
/
1
13
12
1
n
a
F
/4"
6
*26"
"
2
/
1
*10
*Dimensions
adjust at these
points to match
service case
height
16"
FMSS
Remote
Self-Service Shown with
Optional Special Height
Scale = 1"
ASC
PARENT CASE
20"
FMSS
Height Modified to
match the ASC case
Front-Mount Self-Service case. Can be ordered to mount in front
of ANY service case. Base height can be modified to match any
service case bumper height.
“Field” Close Off
FMSS
4 1/2"
"
2
/
1
12
"
2
/
1
3
Elec.
Drain
4'
(VARIABLE LENGTHS)
24"
Ref. Drop In
2 5/8"
"
8
/
7
9
"
16
FMSS
Plan View
Scale = 1/2"
3
Installation (cont.)
LOCATION
The refrigerated merchandisers have been designed for
use only in air conditioned stores where temperature and
humidity are maintained at or below 75°F and 55% relative humidity. DO NOT allow air conditioning, electric fans,
ovens, open doors or windows (etc.) to create air currents around the merchandiser, as this will impair its correct operation.
Product temperature should always be maintained at a
constant and 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 life of the product.
UNCRATING THE STAND
Place the fixture as close to its permanent position as
possible. Remove the top of the crate. Detach the walls
from each other and remove from the skid. Unbolt the
case from the skid. The fixture can now be lifted off the
crate skid. Lift only at base of stand!
EXTERIOR LOADING
These models have not been structurally designed to sup-
port excessive external loading. Do not walk on their
tops; This could cause serious personal injury and damage to the fixture.
SETTING AND JOINING
The case that the FMSS connects to (the parent case)
through the rear of the case must be leveled and set prior
to installing the FMSS. The sectional construction of these
models enable them to be joined in line - to give the effect
of one continuous display. A joint Trim Kit is supplied with
each case line to cosmetically “mask” the sectional joints.
See the “Finishing Touches” section for more information
on joint trim.
IGSS-FMSS-0301
Determine the highest point of the floor; cases will
be set off this point.
2. Level and set the first case, carefully guiding the
electrical, regfrigeration and drain lines through the
parent case. Case must be raised under legs where
support is best to prevent damage to case. Internal
bracing may be removed at this time.
3. Set second case as close as possible to the first case
carefully guiding its electrical, refrigeration and drain
lines through the parent case, and level case to the
first using the instructions in step one.
4. Apply masking tape 1/8" in from end of case on
inside and outside rear mullion on both cases to be
joined.
5. Apply
liberal bead of case joint sealant (butyl) to
dotted area shown in (Fig.2, #1) of first case. Apply
heavy amount to cover entire shaded area.
DO NOT USE PERMAGUM!
Fig. 2, #1
LEVELING
IMPORTANT! It is imperative that cases be leveled from front to back and side to side prior to
joining. A level case is necessary to insure proper
operation, water drainage, glass alignment, and
operation of the hinges supporting the glass. Leveling the case correctly will solve most hinge operation problems.
NOTE: A. To avoid removing concrete flooring, begin lineup
leveling from the highest point of the store floor.
B. When wedges are involved in a lineup, set them first.
All cases were leveled and joined prior to shipment to
insure the closest possible fit when cases are joined in the
field. When joining, use a carpenters level and shim legs
accordingly. Case must be raised correctly, under legs
where support is best, to prevent damage to case.
1. Check level of floor where cases are to be set.
It is the contractor’s responsibility to install
case(s) according to local construction and
health codes.
6. Slide second case up to first case snugly. Then level
second case to the first case so glass front, bumper
and top are flush.
Do not use the top bracket on the rear mullion
to pull the cases together.
4
Rev.0301
7. To compress silicone at joint, use two Jurgenson
wood clamps. Make sure case is level from front to
back and side to side on inside bulkheads at joint.
8. Attach sections together with the two 3/8” bolts
provided, below the deck at the mullion towards the
rear of the FMSS. Remove clamps.
9. Apply bead of silicone to top of bulkheads and slip
on stainless steel bulkhead cap. Also apply silicone
to seam between overhead light tubes.
10. VERY IMPORTANT! Apply liberal amounts of
black silicone to fill all voids down to bulkhead.
Proper case-joint sealing is
extremely important to prevent
water leaks!
Installation (cont.)
(apply additional silicone if necessary). Remove tape
applied on line #3.
JOINT TRIM
After cases have been leveled and joined, and refrigeration, electrical, and wasted piping work completed, install
the splashguards. Fasten along the top edge, or center, with
#10 X 3/3" sheet metal screws.
D
O NOT SEAL JOINT T RIM T O FLOOR!
11.Use finger to smooth silicone as thin as possible at
masking tape on inside and outside of rear mullion
Plumbing
WASTE OUTLET AND P-TRAP
The waste outlet is located at the left hand end of these
fixtures allowing drip piping to be run under the fixture
lengthwise.
A 1" P-trap and threaded adapter are supplied with each
fixture. The P-trap must be installed to prevent air leakage
and insect entrance into the fixture.
INSTALLING CONDENSATE DRAIN
Poorly or improperly installed condensate drains can seriously interfere with the operation of this refrigerator,
and result in costly maintenance and product losses. Please
follow the recommendations listed below when installing
condensate drains to insure a proper installation:
1. Never use pipe for condensate drains smaller than
the nominal diameter of the pipe or P-trap supplied
with the case.
2. When connecting condensate drains, the P-trap
must be used as part of the condensate drain to
prevent air leakage or insect entrance. Store plumbing system floor drains should be at least 14" off the
center of the case to allow use of the P-trap pipe
section. Never use two water seals in series in any
one line. Double P-traps in series will cause a lock
and prevent draining.
3. Always provide as much down hill slope (“fall”) as
possible; 1/8" per foot is the preferred minimum.
PVC pipe, when used, must be supported to maintain the 1/8" pitch and to prevent warping.
4. Avoid long runs of condensate drains. Long runs
make it impossible to provide the “fall” necessary for
good drainage.
5. Provide a suitable air break between the flood rim of
the floor drain and outlet of condensate drain. 1" is
ideal.
6. Prevent condensate drains from freezing:
a. Do not install condensate drains in contact with
non-insulated suction lines. Suction lines should be
insulated with a nonabsorbent insulation material
such as Armstrong’s Armaflex.
b. Where condensate drains are located in dead air
spaces (between refrigerators or between a
refrigerator and a wall), provide means to prevent
freezing. The water seal should be insulated to
prevent condensation.
5
Refrigeration
REFRIGERANT TYPE
The standard refrigerant will be R-404 unless otherwise
specified on the customer order. Check the serial plate
on the case for information.
Piping for more than one case on a condensing unit is run
underground with either common suction and liquid lines
from the machine room or individual suction and liquid
lines joined together in the machine room.
REFRIGERATION LINES
LIQUID SUCTION
3/8" O.D. 5/8" O.D.
NOTE: The standard coil is piped at 5/8" (suction); however,
the store tie-in may vary depending on the number of
coils and the draw the case has. Depending on the case
setup, the connecting point in the store may be
5
/8", 7/8", or 11/8". Refer to the particular case you are
hooking up.
Refrigerant lines should be sized as shown on the refrigeration legend furnished by the store.
Install P-traps (oil traps) at the base of all suction line vertical risers.
Pressure drop can rob the system of capacity. To keep the
pressure drop to a minimum, keep refrigerant line run as
short as possible, using the minimum number of elbows.
Where elbows are required, use long radius elbows only.
For refrigerators with KOOLGAS defrost, suction, and
liquid lines should not contact each other and should
be insulated for a minimum of 30' from the refrigerator. Additional insulation for the balance of liquid and
suction lines is recommended and required wherever
condensation and dripping would be objectionable.
CONTROL SETTINGS-Remote
See the “Case Specs” section of this guidebook for the
appropriate settings for your merchandiser. Maintain these
parameters to achieve near constant product temperatures. Product temperature should be measured first thing
in the morning, after having been refrigerated overnight.
Defrost times should as directed in the Case Specifications section of this guide. The number of defrosts per day
should never change. The duration of the defrost cycle
may be adjusted to meet conditions present at your location.
CONTROL SETTINGS-Self Contained
On Self Contained cases all functions, defroat, fans, temperature are controlled by Pagon ERC-2 controller. See
case spects for proper temperature and defrost settings.
ACCESS TO TX VALVES & DRAIN LINES
MECHANICAL - Remove product from end of case. Remove
product racks. Remove refrigeration and drain access panels
(labeled). TX valve (mechanical only) and drain are located
under each access panel at end of the case.
IGSS-FMSS-0301
ELECTRONIC - The Electronic Expansion valve master and
slave cylinder(s) are located within the electrical access
panel(s).
ELECTRONIC EXPANSION VALVE (OPTIONAL)
A wide variety of electronic expansion valves and case
controllers can be utilized. Please refer to EEV and controller manufacturers information sheet. Sensors for electronic expansion valves will be installed on the coil inlet,
coil outlet, and in the discharge air. (Some supermarkets
require a 4th sensor in the return air). Case controllers
will be located in the electrical raceway or under the case
THERMOSTATIC EXPANSION VALVE LOCATION
This device is located on the same side as the refrigeration stub. A balanced port expansion valve model is furnished as standard equipment.
EXPANSION VALVE ADJUSTMENT
Expansion valves must be adjusted to fully feed the evaporator. Before attempting any adjustments, make sure the
evaporator is either clear or very lightly covered with frost,
and that the fixture is within 10°F of its expected operating temperature.
MEASURING THE OPERATING SUPERHEAT
1. Determine the suction pressure with an accurate
pressure gauge at the evaporator outlet.
2. From a refrigerant pressure temperature chart,
determine the saturation temperature at the
observed suction pressure.
3. Measure the temperature of the suction gas at the
thermostatic remote bulb location.
4. Subtract the saturation temperature obtained in step
No. 2 from the temperature measured in step No. 3.
3. The difference is superheat.
5. Set the superheat for 5°F - 7°F.
T-STAT LOCATION
Thermostats are located within the electrical raceway. The
raceway location is dependent on the style of the front
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