Hussmann Multideck Meat 3750 User manual

June 2014 Rev: A
MJPE Multideck and SMD/SME Low Height Multideck Case
Installation Manual
Reference: IM-1004
66 Glendenning Road, Glendenning NSW 2761
PO Box 42 Doonside NSW 2767
t: [phone] f: [phone]

Installation manual MJPE multideck and SMD/SME Low Height Multideck
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Contents
Pre installation 2
Case services dimensions 2
Operating environment 4
Handling and transporting cases 4
Shipping damages and shortages 4
Installation 5
Positioning and levelling 5
Sealing case joins 7
Joining the cases 8
Attaching kickplates 11
Connecting refrigerant lines 13
Installing the waste drain 15
Installing sensor probes 16
Mounting fixtures 17
Commissioning 18
Cleaning case 18
Starting up 18
Start up checks 18
Decommissioning 19
Disposal 19
Troubleshooting 20
Appendixes 21
Appendix 1 Wiring diagrams 21
Appendix 2 Risk analysis 22
Appendix 3 Warranty 23

Installation manual MJPE multideck and SMD/SME Low Height Multideck
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Pre installation
Case Services Dimensions
LEG and ELECTRICAL BOX POSITION
LENGTH
A
B
1250
-
870
1875
-
655
2500
-
985
3750
1835
930
SMD/SME
SMD/SME - CROWN
ELECTRICAL
BOX
LEG
POSITIONS

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MJPE
LEG POSITIONS
LENGTH
A
1250
-
1875
-
2500
-
3750
1835
MJPE –CROWN
Figure 1:- Service layout for cases
NOTE: This information is a reference only. Always refer to the latest Product Engineering Data sheet.

Installation manual MJPE multideck and SMD/SME Low Height Multideck
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Operating Environment
Cases have been factory tested to AS1731, 25C at 60% RH. For best performance, store temperature should be
maintained at or below 24C at 50% RH, if not an “air ventilation kit” may be required.
To avoid condensation build-up, cases should be positioned to allow air to freely circulate around the underside and rear
of the case. Ideally, the floor will be level.
Cases must not be positioned in areas that may be subject to heat or air currents such as ventilation ducts, open doors or
windows, direct sunlight, electric fans or ovens, etc.
NOTE
Refer to product MSDS for all hazardous
substances used during installation in
relation to their application, PPE, first aid,
disposal and emergency management.
Refer page 20 (Risk Analysis)
For MSDS sheet contact your Hussmann
Representative
Handling and Transporting cases
Case dimensions can be found in the product engineering data sheets.
(This manual is a guide only. Always refer to the latest case information available from Hussmann Customer Service)
Always ensure that the moving device is of a suitable type, and has sufficient lifting capacity for the case weight and
dimension. Always lift cases from the underside.
Refer to and follow the manual handling policies of your Company when moving cases.
CAUTION
Care must be taken to avoid damage to drainage
outlets and electrical equipment mounted under or
at the rear of cases.
Shipping Damage and Shortages
If possible, it is recommended that packaging be removed from the cases before they are moved into the store.
After removing packaging, inspect the case for any shipping damage and ensure that all case inclusions, such as trims
etc are accounted for. Immediately report any shipping damage to the carrier and inform Hussmann Customer Service of
any short supplies.

Installation manual MJPE multideck and SMD/SME Low Height Multideck
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Installation
NOTE
Information in this manual is to be followed in conjunction
with specifications, work practices and regulations of the
customer, installing company and relevant industry.
Unwrap the cabinet and remove the shipping braces. Lift up cabinet and remove shipping base
Figure 2 Levelling feet adjustment
Positioning and Levelling
CAUTION
Ensure the lifting capacity of the trolley, etc is sufficient
for the case. Refer to the product engineering data tables
at the front of this manual for case weights and Risk
Analysis (page 22).
To position the cases:
1. If the plinth surface is not level, determine where the highest point of the plinth is, and position the case allocated
to this position first.
2. Snap a chalk line on the floor to use as a guide for positioning the front of the cases in the line-up. Determine the
position of the case and choose a part of the case that will relate to the chalk line.
3. Adjust the case height using the adjustable feet (if fitted) or metal shims (do NOT use timber) to ensure the case
is level to within +/- 1.5mm from front to back and side to side and chassis of case is NOT twisted. Maximum
30mm adjustment.
Figure 3:- Levelling feet adjustment

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NOTE
It is important that all cases are level for correct
case joining and operation.
DO NOT SET CASE LEVELS OFF THE
PATCH END fitted to a case.
Figure 4:- Case levelling
Figure 5:- Line up cases
Make sure case is level:
Front to Back: +/- 1.5mm
Side to Side: +/- 1.5mm
Make sure Chassis
of case is NOT
TWISTED.

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Sealing Case Joins
Before joining, all cases must be sealed to protect against water and air leakage.
To seal the joins
1. Remove the shelving, racks, mirrors etc, from the end bays, where necessary
CAUTION
Take care if removing Shelves when joining the
cases
Shelf light leads may need to be disconnected
2. Cases joints must be air tight to prevent formation of ice or condensation. Foam tape has already been fitted to
the end of the case. Check to ensure sealing integrity can be achieved, remedy if foam tape has been damaged,
before final joining of both cases together.
Figure 6:- Prepare cases for joining
Foam tape. (already
fitted)

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Joining the Cases
Ensure cases are sealed before joining them to other cases
CAUTION
Do not walk or sit on cases.
To join the cases
1. Align the canopy by inserting the “multiplexing rods” into the aluminium canopy decoration panel
Figure 7:- Insert multiplexing rods for joining
2. Draw up the required case tightly against the case already in position
CAUTION
Case joining bolts should only be used, with
care, at the final pulling-up stage.

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3. Use hex bolt M8, hex nut M8, plane washer M8 and spring washer M8 to connect with joining frame of each case
through the access holes.
4. Ensure that the case is level, from front to back and side to side, with the existing case.
5. Insert the joining bolts, found in the blister pack, into the end holes and tighten
Figure 8:- Joining cases
Figure 9:- Seal between cases
6. Apply either black or white silicon (depending on the interior colour of the case) all the way along the top of the
join, between the endframes of the cases, only
7. Applying slight pressure, run your finger along the length of the silicon.
Seal along this edge only when
cases are joined together

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Joining and Lining up an End Case
The additional steps necessary when lining up and End case, involves:
•There are additional locating holes with rivnuts in the back of the Crown case.
•Screw the threaded rod into these holes.
•Keep screwing the rod into place until 15mm still protrudes, proud of the surface of the back of the case.
Figure 10:- Joining the end case
Figure 11:- End case fixing bolts
•Pull up the next case and the End case.
•Carefully push the next case to ensure the threaded rods can be located to the connection holes of the next
cases.
•Use the M8 plain washer and nuts to tighten them together.
Figure 12:- End case join

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Attaching Kickplates
(This should be done after final Installation of Refrigeration and Drainage connections)
•Use hex screws 6.3 x 19mm to fix the kickplate support to the base. (These parts are in the accessories box).
•Do NOT fix the kickplate support to the base too tightly. It should be able to slip up and down through the oblong
hole. This will enable the kickplate to be moveable and it will naturally sit correctly in relation to the floor.
Figure 13:- Kickplate support assembly
•Cut the gasket 45° and fit to the lower kickplate panel.
Figure 14:- Kickplate assembly

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Figure 15:- Install lower kickplate
Clip Kickplate panel over
support bracket.

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Connecting Refrigerant Lines
Connection of refrigeration lines is to be undertaken by qualified persons only.
Refrigeration pipes are located under the pan decks and can be run from case to case through designated access holes
in the end frames and/or out via the base of the case. See figure 1: service layout for location of the refrigerant up-stand.
Up to four cases can share one refrigeration up-stand, however, to ensure best performance, it is recommended that no
more than three cases share an up-stand.
The evaporator coils have been charged with dry nitrogen in the factory.
Figure 16:- Refrigeration connection
CAUTION
Do not run refrigeration lines from another compressor through a case.
Since pressure in the first system responds to the coldest location,
refrigeration lines from the first system running through a second system
may be chilled to the point that it’s pressure control will respond to the
pressure from the second system. This is called cross controlling and
should be avoided.
To connect refrigeration lines:
1. Ensure the evaporator coils are fully charged by checking the dry nitrogen holding charge against the pressure
written on the tag attached to the coil –it should read between 450kpa and 500kpa.
2. Braze the pipes to the coil using dry nitrogen to prevent any foreign matter being left in the lines. Keep pressure
below 1700kPa (250 Psig).
CAUTION
Remove or protect the expansion (TX) valve feeler
bulbs (or power lead if electronic valve) from heat.
Ensure the power lead is clear of heat and flame.
Refrigeration entry through
base of case.
Can be either on LH end or
RH end

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3. Insulate all external pipe work to Standard practice and Customer specifications.
4. Seal off all external access holes with polyurethane foam and then bituminous paint to prevent leakage and
condensation.
5. Connect to condensing unit or compressor.
6. Pressure test all welded and fastened connections to ensure they are free of leaks.
7. Dehydrate the refrigeration system using the triple evacuation method. Use a vacuum pump to 1000
microns for the first two evacuations and 500 microns on the third, or to the customer’s specific requirements.
Break evacuations 1 and 2 with dry nitrogen, allowing the pressure to rise above atmospheric pressure each time.
8. Charge with refrigerant after final (3rd) evacuation.

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Installing a Waste Drain
NOTES
Drains must be connected to local
council requirements.
All joins must be solvent welded.
Each case must be connected to its own waste drain See figure 1: service layout for of the drain up-stand. The case is
supplied with the Ø40mm (outside diameter) PVC piping, drain trap and elbows
To install a waste drain:
1. Install PVC drain parts using recommended PVC cleaner, primer and cement per manufacturer’s
recommendation.
CAUTION
Incorrectly installed drain traps will result in
adverse air leaking into the case.
2. Apply PVC specific threaded pipe sealer on the male threads of the plug.
3. Thread plug into adapter until snug, but not to exceed four (4) full rotations.
4. Installed drain piping may require additional support depending on the number and location of the hub floor
drains. The installer should always provide adequate support to all drain piping arrangements to prevent excess
stress on all drain piping components. The installer must provide additional support when “evac” type waste
water systems are applied.
figure 17 drain trap orientation
5. Test for leakage by pouring water down the drain and ensure trap is primed before starting refrigeration.
6. NOTE: All joints to be glued with suitable adhesive.

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Installing Sensor Probes
If required and not already fitted, one sensor probe needs to be installed (supplied by installation contractor) in the ceiling
panel of each case.
CAUTION
Refer to relevant State or Territory legislation
relating to safe working heights.
To install the probe:
1. Unscrew the plate from the ceiling panel to get access to the conduit for the probe wire. A coloured piece of wire
acting as a draw string is located behind the plate in the conduit (see figure 18: location of probe)
figure 18 location of probe
2. Attach the sensor to the back of the plate inside the case.
3. Secure the end of the sensor wire to the draw string wire.
4. On the roof of the case, pull draw wire and sensor wire all the way through the conduit.
5. Seal end of the conduit with putty or silicon
6. Repeat for each case.
CAUTION
Do not walk or sit on cases.
Inside case in ceiling
Outside roof of case

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Mounting fixtures
Replace racks and shelves etc, as necessary to store requirements
NOTE
Incorrect shelf configurations may
compromise case performance.

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Commissioning
Cleaning case
•Remove the PVC protective coating on stainless steel, where applicable
•Remove any residue, silicon or tape marks with a cloth moistened with rubbing alcohol
•Remove all debris from in and around the case
•Wipe case with a clean, damp cloth, if necessary
Starting up
•Check supply power is ready and correct voltage. (by Licensed Person)
•Confirm correct operation of RCD (if fitted) (by Licensed Person)
Turn case power on
Start up checks –by qualified persons only
•Ensure that the drain trap is installed the right way up (refer to figure 7: drain trap orientation in the section
installing the waste drain)
•Check that all fans and lights (and light RCDs, if installed) are working correctly.
•Check the anti sweat circuit, ensuring the thermostat is set correctly.
•Set expansion valves and EPRs as per Product Engineering Data –Available from Hussmann.
•Approximately 24 hours after start-up, check that the case is at correct operating temperature (refer the Product
Engineering Data).

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Decommissioning
Plan and risk assess the decommissioning process to include the following:
•Isolate the case from both the refrigeration and electrical systems. Disconnection is to be undertaken by qualified
persons only.
•Removal of the case is to be in the reverse order of installation listed previously.
Disposal
Case disposal is to be carried out by the following:
•Metal component removed and recycled
•Remaining by commercial waste management