Hussmann DBP-01, DBRP-03, DBP-03, DBRP-01 Installation And Operation Manual

Manual
REV. 0508
/CHINO
DBP, DBRP 01, 03
ISLAND PRODUCE
DBP, DBRP 01, 03
ISLAND PRODUCE
P/N IGIP-DBP, DBRP 01, 03-0508
INSTALLATION & OPERATION GUIDE
General Instructions
This equipment is to be installed to comply with the applicable NEC, Federal, State , and Local Plumbing and Construction Code h a v ing j u risdicti o n .
Table of Contents
General Instructions.....................................................2
Cut and Plan Views ......................................................3
Installation .....................................................................4
Location ..................................................................................... 4
Uncrating the Stand ................................................................... 4
Exterior Loading ......................................................................... 4
Setting and Joining .................................................................... 5
Leveling .....................................................................................5
Splash Guard ............................................................................. 5
Plumbing ....................................................................... 6
Waste Outlet and P-TRAP ......................................................... 6
Access Panels ........................................................................... 6
Installing Condensate Drain....................................................... 6
Hose Reel .................................................................................. 6
Spray Hose ................................................................................ 6
Refrigeration ................................................................. 6
Refrigerant Type ........................................................................ 6
Piping ......................................................................................... 6
Access Panels ........................................................................... 6
Refrigeration Lines ..................................................................... 6
Control Settings ......................................................................... 6
Access to TX Valves and Drain Lines ........................................ 7
Electronic Expansion Valve (Optional) ....................................... 7
Thermostatic Expansion Valve Location .................................... 7
Measuring the Operating Superheat.......................................... 7
T-STAT Location ........................................................................ 7
Electrical........................................................................7
Wiring Color Code .....................................................................7
Electrical Circuit Identication .................................................... 7
Electrical Service Receptacles (When Applicable) .................... 7
Field Wiring and Serial Plate Amperage .................................... 8
Ballast Location .........................................................................8
Wiring and Serial Plate Amperage ............................................. 8
Ashrae Color Code .................................................................... 8
User Information ........................................................... 8
Stocking ..................................................................................... 8
Important Steps .........................................................................8
Case Cleaning ........................................................................... 8
Maintenance .................................................................. 9
Replacing Fluorescent Lamps ................................................... 9
Replacement Lamp Part List .....................................................9
T-5 Bulbs .................................................................................... 9
Evaporator Fans ........................................................................ 9
Copper Coils .............................................................................. 9
Tips and Troubleshooting ........................................................ 10
Electrical Wiring Diagrams ........................................10
Wiring Diagrams ......................................................... 11
Appendices ................................................................. 24
Appendix A. - Temperature Guidelines - Refrigerated ............. 24
Appendix B. - Application Recommendations - Refrigerated ... 24
Appendix C. - Field Recommendations - Refrigerated ............ 24
Appendix D. - Recommendations to User - Refrigerated ........ 25
IGIP-DBP, DBRP 01, 03-0508
This Booklet Contains Information on:
DBP, DBRP 01, 03 Island Produce Cases
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 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 les 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
2
Rev. 0508
DBP-03
Standard Section
Produce
Scale = 3/8"
381/2"
701/4"
26
1
/
8
"
35
1
/
4
"
30"
153/
4
51"
3
/4"
Optional
Base Display
11"
141/4"
4"
26
1
/8
"
20
1
/
8"
5'-101/8"
41
5
/8"
DBRP
Straight Section
Scale = 1/4"
Straight
Racks
141/4"
4"
9"
73/8"
Optional
Step Racks
Mech.
stub-up
area
24" X 24"
C
L
70
1
/
4
"
DBRP-03
Plan View
NOTE: Mechanical Stub-Up Areas will vary with size of case
Scale = 1/4"
Variable
40"
Elec.
Drain
Ref.
6"
24"
1
6
"
26
1
/
8
"
DBRP-03
Shown with Optional Ref. High Center Divider and Refrigerated Lighted Shelves
Scale = 3/8”
30"
Optional Ref. High
Center Divider
and Ref. Lighted
Shelves
Optional
Base Display
C
L
DBP LINEUP
Modular Example
Scale = 1/8"
Crown
8'-73/4"
5’-9
1
/
2
"
10'-6
3
/
4
"
3
'
-
3
"
3'-3"
3'-101/2"
Center Display
Mech.
stub-up
area
6"
18"
18"
18"
Mech.
Stub-up
Area
24" X 24”
24"
X
24"
4"
DBRP
Crown Section
Scale = 1/4"
26
1
/8"
20
1
/
8
"
10'-63/4"
8'-1"
147/8"
73/8"
Straight
Racks
Optional
Step Racks
9"
4"
147/8"
DBRP
Octagon Section
Scale = 1/4"
Straight
Racks
Optional
Step Racks
4"
26
1
/
8
" 20
1
/
8
"
157/8"
9'-41/8"
6'-111/2" 157/8"
9"
7
3
/8"
4"
Cut and Plan Views
3
C
L
DBP LINEUP
Modular Example
Scale = 1/8"
Crown
8'-73/4"
5’-9
1
/
2
"
10'-6
3
/
4
"
3
'
-
3
"
3'-3"
3'-101/2"
Center Display
Mech.
stub-up
area
6"
18"
18"
18"
Mech.
Stub-up
Area
24" X 24”
24"
X
24"
4"
DBRP
Crown Section
Scale = 1/4"
26
1
/
8
"
20
1
/
8
"
10'-63/4"
8'-1"
14
7
/8"
7
3
/8"
Straight
Racks
Optional
Step Racks
9"
4"
147/8"
DBRP
Octagon Section
Scale = 1/4"
Straight
Racks
Optional
Step Racks
4"
26
1
/8" 20
1
/8"
157/8"
9'-41/8"
6'-11
1
/2" 157/8"
9"
73/8"
4"
9'-4
1
8
"
1
0
'
-
1
3
/
8
"
DBRP-OCTAGON
Plan View
Scale = 1/4"
Dra
in
Drain
R
e
f.
Elec
.
Crown
8'-73/4"
5'-9
1
/
2
"
10'-6
3
/
4
"
3
'-
3
"
3
'
-
3
"
3'-101/2"
DOUBLE DOG PLAN
Modular Example
Scal e = 1/8"
Cut and Plan Views (Cont'd)
IGIP-DBP, DBRP 01, 03-0508
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.
Installation
Uncrating the Stand
Place the xture 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 xture can now be lifted off the crate
skid. Lift only at base of stand!
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 xture.
4
Rev. 0508
It is the contractor’s responsibility to install
case(s) according to local construction and
health codes
BO LT LO C ATIO N S
SE A L ANT A P PLIC ATIO N
Installation (Cont'd)
Setting and Joining
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 joint.
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 ooring, begin lineup
leveling from the highest point of the store oor.
B. When wedges are involved in a lineup, set them rst.
All cases were leveled and joined prior to shipment to
insure the closest possible t when cases are joined in the eld. 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 oor where cases are to be set. Determine the highest point of the oor; cases will
be set off this point.
2. Set rst case, and adjust legs over the highest part of the oor so that case is level. Prevent
damage-case must be raised under leg or by use of 2x6 or 2x4 leg brace. Remove side and back leg braces after case is set.
3. Set second case as close as possible to the
rst case, and level case to the rst 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 gure) rst case. Apply heavy
amount to cover entire shaded area.
DO NOT USE PERMAGUM!
7. Apply bead of silicone to side of either half of case (if case is built in two pieces). Also apply silicone to seam between overhead light tubes.
8. Slide second half up to rst case snugly. To
compress silicone at joint, use two Jurgenson wood clamps to pull the inside of the bulkheads together. Make sure case is level from front to back and side to side at joint. DO NOT USE BOLTS TO DRAW CASES UP TIGHT! DAMAGE MAY OCCUR! Make sure cases are tight and bolted together in all locations (see diagram next page). Remove clamps. Cleanup excess silicone.
9. There may be an interlock system built into the tower, depending on the height of it. Joining involves a number of bolts, again dependent on the height.
10. Attach joint trim pieces, that will hide the loose joint where the case halves come together.
11. Connect case to eld electrical, refrigeration, and pipe to oor sink.
12. Install body covers.
13. Attach cart bumper, if applicable.
Splash Guard
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.
DO NOT SEAL JOINT TRIM TO FLOOR!
6. Slide second case up to rst case snugly. Then level second case to the rst case so glass front, bumper and top are ush.
5
Plumbing
IGIP-DBP, DBRP 01, 03-0508
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 xture.
A 1-1/2” P-TRAP and threaded adapter are supplied with
each xture. The P-TRAP must be installed to prevent air leakage and insect entrance into the xture.
NOTE: PVC-DWV solvent cement is recommended. Follow the
manufacturer’s instructions.
Access Panels
All electrical and drain access panels are clearly labeled on the deck of the produce stand. The access for condensing units (in the self contained units) is located on the side of
the stand, at the end. Ends of stand are tted for removal,
if condensing unit has to be taken out.
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 oor 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.
Refrigeration
Refrigerant Type
The standard refrigerant will be R-22 unless otherwise
specied on the customer order. Check the serial plate on
the case for information.
Piping
The refrigerant line outlets are located under the case.
Locate rst 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.
Access Panels
All electrical and drain access panels are clearly labeled on the deck of the produce stand. The access for condensing units (in the self contained units) is located on the side of
the stand, at the end. Ends of stand are tted for removal,
if condensing unit has to be taken out.
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.
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 ood rim of the oor 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 non absorbent insulation
material such as Armstrong’s Armaex.
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.
Hose Reel
If an optional hose reel is ordered, it will be installed at the factory. The water supply valve is located next to the access panel. Connect the water supply to the valve.
Spray Hose
If an optional quick-disconnect spray hose is ordered, a pressure regulating valve should be installed. If the water pressure exceeds 45 PSI, the valve should be set for 30 to 35 PSI outlet pressure.
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.
Control Settings
See DBP, DBRP 01, 03 technical data sheet for the appropriate settings for your merchandiser. Maintain these parameters to achieve near constant product temperatures.
Product temperature should be measured rst thing in
the morning, after having been refrigerated overnight. For all multiplexing, defrost should be time terminated. Loadmaster valves are not recommended. Defrost times should be as directed in the DBP, DBRP 01, 03 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.
6
Rev. 0508
BEFORE SERVICING
ALWAYS DISCONNECT ELECTRICAL
POWER AT THE MAIN DISCONNECT
WHEN SERVICING OR REPLACING ANY
ELECTRICAL COMPONENT.
This includes (but not limited to) Fans, Heaters
Thermostats, and Lights.
Refrigeration (Cont'd)
Access to TX Valves and 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.
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, unless otherwise specied by
customer.
Electrical
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 xture 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.
5. The difference is superheat.
6. Set the superheat for 5°F - 7°F.
T-STAT Location
T-STATS are located under access panels on the end of the case.
Wiring Color Code
CASE MUST BE GROUNDED
NOTE: Refer to label illustrated above that is afxed to case
to determine the actual conguration as checked in the
“TYPE INSTALLED” boxes.
Electrical Circuit Identication
Standard lighting for all models will be full length uorescent
lamps located within the case at the top. The switch controlling the lights, the plug provided for
digital scale, and the thermometer are located at the rear of the case mullion.
The receptacle that is provided on the exterior back of these
models is intended for computerized scales with a ve amp
maximum load, not for large motors or other high wattage appliances. It should be wired to a dedicated circuit.
Electrical Service Receptacles (When Applicable)
The receptacles located on the exterior of the merchandiser are intended for scales and lighted displays. They are not intended nor suitable for large motors or other external appliances.
7
Electrical (Cont'd)
IGIP-DBP, DBRP 01, 03-0508
Field Wiring and Serial Plate Amperage
Field Wiring must be sized for component amperes printed on the serial plate. Actual ampere draw may be less than
specied. Field wiring from the refrigeration control panel to
the merchandisers is required for refrigeration thermostats. Case amperes are listed on the wiring diagram, but always check the serial plate.
Ballast Location
Ballasts are located within the access panel that runs the length of the rear of the case. Refer to diagram on page 5.
Wiring and Serial Plate Amperage
Field Wiring must be sized for component amperes stamped on the serial plate. Actual ampere draw may be less than
specied. Field wiring from the refrigeration control panel to
the merchandisers is required for refrigeration thermostats. Case amperes are listed on the wiring diagram, but always check the serial plate.
User Information
Stocking
Improper temperature and lighting will cause serious product loss. Discoloration, dehydration and spoilage can be controlled with proper use of the equipment and handling of product. 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. Hussmann cases were not designed to “heat up” or “cool down” product-but rather to maintain an item’s proper temperature for maximum shelf life. To achieve the protection required always:
1. Minimize processing time to avoid damaging temperature rise to the product. Product should be at proper temperature.
2. Keep the air in and around the case area free of foreign gasses and fumes or food will rapidly deteriorate.
3. Maintain the display merchandisers temperature controls as outlined in the refrigerator section of this manual.
4. Do not place any product into these refrigerators until all controls have been adjusted and they are operating at the proper temperature. Allow merchandiser to operate a minimum of 6 hours before stocking with any product.
5. When stocking, never allow the product to extend beyond the recommended load limit. Air discharge
and return air ue must be unobstructed at all
times to provide proper refrigeration.
Ashrae Color Code
NOTE: All other manufacturers have no standard sensor codes.
Case Control Systems SENSOR COLOR Manufacturer ® > EIL CPC Location Coil Inlet
Coil Outlet
Discharge Air
Return Air
Defrost Term.
Liquid Line
Color Blue Blue Part# 225-01-1755 225-01-3255 Color Red Red
Part# 225-01-1757 225-01-3123 Color Green Green
Part# 225-01-1756 225-01-3260 Color Purple Green
Part# 225-01-1758 225-01-3260 Color White Orange Part# 225-01-0650 225-01-3254 Color White Blue Part# 225-01-0650 225-01-3255
6. There are vents located at the base of the front of the glass, just above the front rail. These vents supply a
continuous, gentle ow of air across the front glass
which inhibits condensation. Do not place any signs or other restrictive objects on the front of the refrigerator that will block these vents.
7. Avoid the use of supplemental ood or spot lighting.
Display light intensity has been designed for maximum visibility and product life at the factory.
The use of higher output uorescent lamps (H.O.
and V.H.O.), will shorten the shelf life of the product.
8. Cold coils remove heat and moisture from the case and deposit this as frost onto the coil. Thus, a defrost is required. The only other moisture within the case is that in the product itself. A single level of meat will dry out faster than a fully loaded case of 3-4 levels of meat.
Important Steps
1. Do not set temperature too cold, as this causes product dehydration. See Case Specs for Proper
Temperature: Settings.
Case Cleaning
Long life and satisfactory performance of any equipment are dependent upon the care given to it. To insure long life, proper sanitation and minimum maintenance costs, the refrigerator should be thoroughly cleaned frequently. SHUT OFF FAN DURING CLEANING PROCESS. It can be unplugged within the case, or shut off case at the source. The interior bottom may be cleaned with any domestic soap or detergent based cleaners. Sanitizing solutions will not harm the interior bottom, however, these solutions should always be used according to the manufacturer’s directions. It is essential to establish and regulate cleaning procedures. This will minimize bacteria causing discoloration which
leads to degraded product appearance and signicantly
shortening product shelf life.
8
Rev. 0508
CLEANING PRECAUTIONS
When cleaning:
• Do not use high pressure water hoses
• Do not introduce water faster than waste outlet can drain
• NEVER ON A SELF CONTAINED UNIT WITH AN EVAPORATOR FAN
• NEVER USE A CLEANING OR SANITIZING SOLUTION THAT HAS AN OIL BASE (these will dissolve the butyl sealants) or an AMMONIA BASE (this will corrode the copper componets of the case)
TO PRESERVE THE ATTRACTIVE FINISH:
• DO USE WATER AND A MILD DETERGENT FOR THE EXTERIOR ONLY
• DO NOT USE ABRASIVES OR STEEL WOOL SCOURING PADS (these will mar the finish)
BEFORE SERVICING
ALWAYS DISCONNECT ELECTRICAL
POWER AT THE MAIN DISCONNECT
WHEN SERVICING OR REPLACING ANY
ELECTRICAL COMPONENT.
This includes (but not limited to) Fans, Heaters
Thermostats, and Lights.
This lamp has been treated to resist breakage and must be replaced with a similarly treated lamp in order to maintain compliance with NSF Standards. NSF CODE 4.28.1
Contact HUSSMANN Chino for replacement
1-800-395 -9 22 9 x 2131
User Information (Cont'd)
Soap and hot water are not enough to kill this bacteria. A sanitizing solution must be included with each cleaning process to eliminate this bacteria.
1. Scrub thoroughly, cleaning all surfaces, with soap and hot water.
2. Rinse with hot water, but do not ood.
3. Apply the sanitizing solution according to the manufacturer’s directions.
4. Rinse thoroughly.
5. Dry completely before resuming operation.
Maintenance
Replacement Lamp Part List
Refrigerated Lamps
Replacing Fluorescent Lamps
Fluorescent lamps are furnished with a shatterproof protective coating. The same type of lamp with protective coating must be used if replaced.
Lamp Q150T3/CL J220/230V150W/79 Our Part No. 125-03-1081 125-03-1141 Voltage 120VAC 220VAC Rated Life 1500 Hrs 1500 Hrs Manufacturer General electric Ushio America, Inc. Our Cost $7.00 $2.55 Telephone 1-800-554-4680 1-800-760-7446
1-800-327-0097
General Electric has many national distribution locations. Call for your closest location.
Ushio America Inc. is located at: 10550 Camden Drive. Cypress, CA. 90630
T-5 Bulbs
Please note: T-5 lights must be turned off and on after bulb replacement.
Evaporator Fans
The evaporator fans are located at the center front of these merchandisers directly beneath the display pans. Should
fans or blades need servicing, always replace fan blades with the raised embossed side of the blade TOWARD THE MOTOR.
Copper Coils
The copper coils used in Hussmann merchandisers may
be repaired in the eld. Materials are available from local
refrigeration wholesalers. Hussmann recommends using #15 Sil-Fos for repairs.
9
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