Hussmann MD-10 Installation & Operation Manual
Md series.
medium temperature
self contained open vertical
merchandisers
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Also See for MD-10:
- Accessories manual (6 pages) ,
- Installation & operation manual (9 pages)
Table of Contents
Related Manuals for Hussmann MD-10
Summarization of Contents
INSTALLATION
UL LISTING
Merchandisers meet ANSI/UL 471 safety standards; proper installation maintains listing.
FEDERAL / STATE REGULATION
Merchandisers meet federal/state regulations; proper installation ensures compliance.
HUSSMANN PRODUCT CONTROL
Serial number and shipping date recorded for warranty/parts; correspondence requires serial number.
SHIPPING DAMAGE
Equipment must be checked for damage before/during unloading; claims must be made to the carrier.
LOCATION
Merchandisers designed for AC stores; sensitive to air disturbances; avoid sunlight and heat sources.
SELF CONTAINED (LOCATION)
Position merchandisers properly; maintain proper temperature; allow air circulation for condensing unit.
MODEL DESCRIPTION
Open, vertical, medium temp, self-contained display merchandisers with own condensing unit.
EXTERIOR LOADING
Do not walk on or damage merchandisers; not designed for excessive external loading.
UNLOADING
Use lever bar/mule/forklift for unloading; check for damage; remove accessories; avoid dragging.
SHIPPING SKID
Merchandisers shipped on skid; remove crate/walls/skids; do not tilt.
MERCHANDISER LEVELING
Level merchandiser on all four corners for proper operation and drainage.
SERIAL PLATE LOCATION
Located interior top left end; contains model, serial, amp, refrigerant info.
REFRIGERATION UNIT ACCESS
Lower front panel removal for access; screws may need removal on self-contained models.
SEALING MERCHANDISER TO FLOOR
Optional sealing with vinyl cove base trim; may affect panel removal for servicing.
ELECTRICAL / REFRIGERATION
MERCHANDISER ELECTRICAL DATA
Refer to merchandiser serial plate for electrical information.
FIELD WIRING
Field wiring must be sized for component amperes stamped on the serial plate.
ELECTRICAL CONNECTIONS
All wiring must comply with NEC and local codes; self-contained models are cord-connected.
ELECTRICAL OUTLET
Check outlet voltage; use dedicated circuit; do not use extension cords; never plug in more than one unit per circuit.
POWER SWITCH
Main power switch in electrical box controls all power; must be OFF for cleaning/service.
REFRIGERATION (Self Contained Models)
Equipped with own condensing unit and control panel; refrigerant type on serial plate.
WATER OUTLET AND WATER SEAL
Condensate water outlet at front corners; drains to evaporator pan; lower panels must be in place.
START UP / OPERATION MD-10 & MD-14
CONTROLLER OPERATION
Electronic controller in cassette compartment; factory set; remove front grille for access.
KDEPLUS BUTTONS
Description of the KDEPlus keyboard and its 4 keys for controller interaction.
SETPOINT: SETTING AND EDIT LOCK
Guide on displaying, changing, and locking the Setpoint value.
DISPLAY PROBES VALUE
Procedure to display measured values from connected probes.
KEY-ACTIVATED FUNCTIONS
How UP, DOWN, and ESC keys can be configured for specific functions.
Typical Sensor to Control Configuration (MD-10)
Diagram showing sensor and output connections to the RTN400 controller for MD-10.
Typical Sensor to Control Configuration (MD-14)
Diagram showing sensor and output connections to the RTN400 controller for MD-14.
CONTROLS and ADJUSTMENTS
Summary of refrigeration and defrost control settings.
SHELVES
Information on shelf installation, adjustability, loading, and capacity.
LOAD LIMITS
Importance of respecting load limits and not blocking air louvers.
STOCKING
Guidelines for stocking product, including pre-operation time and product rotation.
THERMOMETER
Location and reading units of the internal thermometer.
LIGHTING
Interior lighting type, replacement, and optional LED lighting.
NIGHT COVER
Description and replacement procedure for the standard night cover.
MAINTENANCE
CARE AND CLEANING
General guidelines for weekly cleaning of exterior and interior surfaces.
DO NOT USE:
List of cleaning agents and tools to avoid to prevent damage.
Do:
Recommended cleaning procedures and precautions.
CLEANING UNDER FAN PLENUM
Procedure for cleaning the fan plenum, ensuring proper lowering after cleaning.
CLEANING STAINLESS STEEL SURFACES
Methods for cleaning stainless steel surfaces using mild detergents.
CLEANING COILS
Instructions for cleaning condenser coils monthly to maintain airflow and performance.
CLEANING EVAPORATION PAN (SELF CONTAINED ONLY)
How to clean the condensate evaporation pan and prevent overflow.
REMOVING SCRATCHES FROM BUMPER
Procedure for removing scratches and dings from the bumper.
SERVICE
REPLACING FAN MOTORS AND BLADES
Step-by-step guide for replacing fan motors and blades, including correct blade orientation.
REPLACING ELECTRONIC BALLASTS / LED POWER SUPPLIES
Procedure for accessing and replacing canopy ballast or LED power supplies.
REPLACING FLUORESCENT LAMPS
Instructions for replacing fluorescent lamps, including keeping the protective shield.
REPLACING LED FIXTURES
How to rotate and release LED fixtures for replacement.
APPENDIX A — TECHNICAL DATA
Standard Parts
List of standard parts with part numbers for MD-10UL and MD-14UL models.
Refrigeration
Technical data for refrigeration components like condensing units, coils, and motors.
Condensate Pan
Part numbers for condensate pan assembly, heater, and float switch.
Sheet Metal Replacement Parts Painted
Part numbers for painted sheet metal components like panels and shelves.
MD — Plan View
Diagram showing dimensions and layout of the merchandiser from a top-down perspective.
MD — Cross Section
Diagram illustrating the internal cross-section of the merchandiser, showing components and dimensions.
REFRIGERATION DATA
Data on condensing unit horsepower, capacity, and defrost frequency/termination.
PHYSICAL DATA
Information on refrigerant charge for different models.
Electrical Data
Electrical specifications for fans, heaters, condensing units, and compressor ratings.
Product Data
AHRI total display area and model dimensions, weight, and electrical plug type.
MD-10 Wiring Diagram
Electrical wiring schematic for the MD-10 model, showing component connections.
MD-14 Wiring Diagram
Electrical wiring schematic for the MD-14 model, showing component connections.
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