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Hussmann NRCV User Manual

Hussmann NRCV
34 pages
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Hussmann NRCV Specifications

General IconGeneral
BrandHussmann
ModelNRCV
CategoryMerchandiser
LanguageEnglish

Summary

INSTALLATION

LEVELING

Procedures and importance of leveling merchandisers for proper operation and drainage.

JOINING

Instructions for joining multiple merchandisers together to form a continuous display.

REFRIGERATION

REFRIGERANT PIPING

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

BRANCH LINE PIPING

Guidelines for sizing suction and liquid lines for different defrost types.

EXPANSION VALVE ADJUSTMENT

Procedure for adjusting expansion valves to ensure proper evaporator feed.

CONTROL SETTINGS - MEDIUM TEMPERATURE

Refrigeration and defrost control settings for medium temperature merchandisers.

PARALLEL COMPRESSOR RACK

Control settings and defrost considerations for parallel compressor rack configurations.

CONTROL SETTINGS - LOW TEMPERATURE

Refrigeration and defrost control settings for low temperature merchandisers.

ELECTRICAL

IDENTIFICATION OF WIRING

How electrical leads are identified using colored plastic bands and a color code sticker.

FIELD WIRING

Guidelines for sizing field wiring and connecting multiple merchandisers.

FAN AND HEATER CIRCUITS – ELECTRIC DEFROST (STANDARD) LOW TEMPERATURE

Wiring diagram and sequence for electric defrost circuits in low-temp units.

FAN AND HEATER CIRCUITS – GAS DEFROST (OPTIONAL) LOW TEMPERATURE

Wiring diagram and sequence for optional gas defrost circuits in low-temp units.

FAN AND HEATER CIRCUITS OFFTIME DEFROST (STANDARD) & GAS DEFROST (OPTIONAL) MEDIUM TEMPERATURE

Wiring diagram and sequence for off-time and gas defrost in medium-temp units.

SERVICE

ELECTRIC DEFROST HEATERS (LOW TEMPERATURE ONLY)

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

OPTIONAL GAS DEFROST HEATERS (LOW TEMPERATURE ONLY)

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

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