Hussmann Q2-SS Original operating instructions

Q2-SS
SELF SERVICE
CASE
INSTALLATION & OPERATION GUIDE
/CHINO
Q2-SS SELF SERVICE CASE
Installation
&Operation
Manual
REV. 1222

A publication of HUSSMANN®Chino
13770 Ramona Avenue • Chino, California 91710
[phone] FAX
[phone]
[phone]
www.hussmann.com
This Booklet Contains Information on:
Q2-SS refrigerated, service deli merchandiser.
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 all equipment is uncrated,aclaimfor
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 immediately, 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.
1. General Instructions
/CHINO
2

2. Table of Contents
1. General Instructions...................................................................................................................2
2. Table of Contents .......................................................................................................................3
3. Cut and Plan Views ....................................................................................................................4
4. Installation...................................................................................................................................5
5. Plumbing .....................................................................................................................................9
6. Refrigeration ...............................................................................................................................9
7. Spec Sheet ................................................................................................................................10
8. Electrical....................................................................................................................................12
9. Wiring Diagrams index.............................................................................................................13
10. Wiring Diagrams .....................................................................................................................14
11. User Information .....................................................................................................................31
12. Maintenance............................................................................................................................32
13. Troubleshooting Guide ..........................................................................................................35
14. Appendices .............................................................................................................................37
15. Controller Parameters............................................................................................................40
16. Danfoss Controller Operations .............................................................................................44
17. Dixell Controller Operations……………………………………………………………………….45
3

Front close-off
Case leg
Rear close-off 4
(102)
End
Panels
11/8
(29)
44 5/8
(1133)
48 variable
(1219)
11
(279)
4
(102)
291/2 (749)
441/2 (1130)
Q2-SS-SC
Self-Service Self-Contained
251/4
(641)
17
483/8
(1229)
(432)
331/4 (845)
18
(457)
11(279)
3. Cut and Plan Views
Q2-SS-SC Self Service Self-Contained
10 (254)
4

4. Installation
1. Using case blueprints, measure off and mark on the
floor the exact dimensions of where the cases will
sit. Snap chalk line for front and back positions of
base rail or pedestal. Mark the location of each joint
front and back. Find the highest point throughout
the lineup. FLOORS ARE NORMALLY NOT LEVEL!
Determine the highest point of the floor; cases will
be set off this point. All cases in the entire lineup
must be brought up to the highest level of the case
sitting at the highest point in the lineup. This may be
done a few different ways.
a) Walk the floor looking for any mounds or dips.
b) Use a string level.
c) Use a transit.
If a wedge is used in the middle of a lineup, the
wedge must be set on the highest point on the floor
FIRST, with the rest if the lineup being leveled from
it. The Q2-SS case has adjustable legs to allow for
leveling.
2. Set first case over the highest part of the floor and
adjust legs so that case is level. Remove side and
back leg braces after case is set and joined.
3. Set second case within one foot (1') of the first case,
and remove leg skids. Keep the supports along the
length of the case and far end of case. 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 and body work on
both cases to be joined.
5. Apply liberal bead of case joint sealant (butyl) to first
case. Sealant area is shown using a dotted line in
illustration in Step 8. Apply heavy amount to cover
entire shaded area.
DO NOT USE PERMAGUM!
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 bolts to pull cases together.
5
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.
NOTE: MAINTAIN MIN. CLEARANCE OF 15' FROM
DOORS, VENTS OR HIGH HEAT SOURCES.
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. Keep in place, attached case until ready to set/
bolt to adjoining case.
Tighten Glass Screws
Tighten screws along clamshell located on the underside
of glass before placing unit into operation.
Exterior Loading
These models have not been structurally designed to
support excessive external loading. Do not walk on
their tops; This could cause serious personal injury and
damage to the fixture.
Setting and Joining
The sectional construction of these models enable them
to be joined in line to give the effect of one continuous
display.
An Alignment pin kit is supplied with every case and
must be used in alignment.
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.

FRONT BODY PANEL REMOVED
FOR ACCESS TO FRONT CASE BOLTING
FRONT CASE BOLT
(UPPER 3/8" HOLE)
LINE-UP PLATE
(INSERT INTO VERTICAL SLOT)
LINE-UP PIN
(INSERT INTO OUTER 1/2" HOLE)
CASE BOLTING (MULTIPLE 3/8" HOLES)
ACCESS BEHIND AIR DISCHARGE WALL
LINE-UP PLATE
(INSERT INTO ALUMINUM PROFILE)
CASE BOLTING
USE 1/4"- 20 X 1 1/2" SCREW AT TOP
Q SERIES CASE JOINING GUIDE
LINE-UP TAB
(AT BACK OF BUMPER)
• Drawing is typical to Q-Series
cases, self-service Q-series
cases are excluded from
galss and derive form the
drawing as shown below.
It is the contractor’s responsibility to install
case(s) according to local construction and
health codes.
Installation (Cont'd)
7. To compress butyl 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 via the bolts pictured in the
illustration below.
9. Apply bead of butyl to top of bulk heads and slip on
stainless steel bulkhead cap. Also apply silicone to
seam between joints.
10. Use finger to smooth silicone as thin as possible at
masking tape on inside and outside of rear mullion
(apply additional silicone if necessary). Remove
tape applied on line #4.
11. Remove front, back and end shipping braces.
6

Installation (Cont'd)
Bumper Installation Instructions
Step 1: Make sure the aluminum
channel and end caps are installed.
Step 3: Starting on one end: while
inserting the bumper, push it up against
the end cap to prevent the bumper from
shrinking after installation (when it gets
cold).
Step 2: Use silicone lubricant to help the
bumper slide into the channel.
Step 4: As you insert the bumper into
the channel with one hand, pull the
bumper toward you with the other
to open the inside lips. Slowly apply
pressure by rolling the bumper into the
track.
7

Body Panel Removal
Unfasten screws to
remove front Lower Body
Panels.
8
DF Controller access
cover plate located on
rear Body Panel. Lift and
pull outward to remove.
FRONT BODY PANEL
REAR BODY PANEL
To remove the lower body panels follow the demonstration shown below.

5. Plumbing
6. Refrigeration
Refrigerant lines should be sized as shown on the
9
Waste Outlet and P-TRAP
The waste outlet is located off the center of the case on
one side allowing drip piping to be run lengthwise under
the fixture.
A 1-1/2” 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.
NOTE: PVC-DWV solvent cement is recommended. Follow the
Hussmann’s instructions.
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.
Refrigerant Type
The standard refrigerant will be R-404A unless otherwise
specified on the customer order. Check the serial plate
on the case for information.
Piping
The refrigerant line outlets are located under the case.
Locate first the electrical box, the outlets are then on the
same side of the case, but at the opposite end. Insulate
suction lines to prevent condensation drippage.
Refrigeration Lines
Liquid Suction
3/8” O.D. 5/8” O.D.
NOTE: The standard coil is piped at 1/2” (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.
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.
Control Settings
See Q2-SS technical data sheet 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. For all multiplexing, defrost should be time
terminated. Defrost times should be as directed in the
Q2-SS technical data sheet. 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.

7. Spec Sheet
10