Hussmann RCA User Manual

Lists fan motors and blades for ice cream and frozen food merchandisers.

Details rear finned defrost heaters for 2, 3, 4, and 5 door units.

Lists front pan heaters for 2, 3, 4, and 5 door units.

Lists front and rear pan heaters for gas defrost models.

Describes RFA, RFVA, RCA, and RCVA merchandiser types and door configurations.

Outlines design parameters for low-temperature merchandisers in specific store conditions.

Procedures for inspecting equipment for shipping damage and filing claims.

Warnings against placing weight on merchandisers to prevent damage and injury.

Guidelines for placing merchandisers to avoid air disturbances and ensure proper operation.

Instructions for removing shipping braces and replacing bolts with cap screws.

How to install merchandisers level using shims for proper drainage and operation.

Instructions for adjusting doors after leveling and joining merchandisers.

Methods for joining multiple merchandisers for continuous display, including partition kits.

Proper installation of the waste outlet and water seal to prevent leaks and entry.

Recommendations for installing drip piping to ensure proper drainage and avoid issues.

Steps for installing splashguards after leveling and joining units.

Method for sealing splashguards to the floor using vinyl cove base trim.

Locating the correct refrigerant type from the serial plate.

Details on connection sizes, location, sealing, and insulation of refrigerant lines.

Guidance on piping multiple merchandisers on the same refrigeration system.

How to size refrigerant lines according to store legends or manuals.

Requirement for installing P-traps at the base of all suction line vertical risers.

Minimizing pressure drop by keeping lines short and using long radius elbows.

Recommended insulation for suction and liquid lines for different defrost types.

Procedure for adjusting expansion valves to properly feed the evaporator.

Location and installation of the refrigeration thermostat sensing bulb.

Location and routing of the factory-installed CDA sensor leads.

Location of the defrost termination thermostat behind the inside back access panel.

Recommended settings for discharge air, evaporator, fan cycling, and defrost parameters.

How to control merchandiser temperature using CDA or EPR with a parallel rack.

Electrical connection requirements must comply with NEC and local codes.

Leads are identified by colored plastic bands corresponding to a color code sticker.

Lists wire color codes for various components like thermostats, heaters, and fans.

Field wiring must be sized for component amperes and includes wiring for optional controls.

Table listing amperage draw for fans, heaters, and lights by model.

Wiring diagram and sequence for electric defrost fan and heater circuits.

Wiring diagram and sequence for gas defrost fan and heater circuits.

Wiring diagrams for horizontal lighting on standard 2/3 and 4/5 door models.

Instructions for maintaining merchandisers through proper cleaning procedures.

How to use shelf alignment strips to ensure shelves are flush and appear neat.

Guidelines for stocking products after controls are adjusted and temperature is stable.

Instructions for replacing fan blades, ensuring the correct orientation.

Refers to manufacturer's service manual for detailed door and frame servicing information.

Steps for cleaning honeycomb assemblies to maintain merchandiser performance.

Procedures for removing and replacing front and rear electric defrost heaters.

Procedures for removing and replacing front and rear gas defrost heaters.

Refers to door manufacturer's manual for servicing ballasts and lamps.

Instructions for removing lamp shields, accessing ballasts, and replacing lamps.

Recommended techniques and solders for field repair of aluminum coils.