Russell RU-RLV-1021A Low Velocity Center Mount Unit Cooler Instruction Manual

: June 8, 2024
: Russell

Table of Contents

Features
Highlighted Features and Options
EVAPORATOR APPLICATION RATINGS
Specifications
Physical Dimensions
References
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Download This Manual (PDF format)

Publication No. RU-RLV-1021A
Replaces RU-RLV-0221A and all previous versions

LOW VELOCITY CENTER MOUNT
UNIT COOLER
Small to Medium Walk-In
Cooler Applications
Air and Electric Defrost
4,300 to 32,500 BTUH

Features

Low Velocity Center Mount Unit Coolers mount flush to the ceiling to provide extra storage space. Units are ideal for florist boxes; produce storage; meat cutting, holding and packing rooms; and similar applications. Features include two-way air flow to provide for even circulation and temperature, easy serviceability, usability with multiple refrigerants, and are available in air and electric defrost models.

SIZES
There are a wide array of sizes available with capacities ranging from 4,300 to 32,500 BTUH at a 10° TD. One through five fan models are available with air flow spanning a range of 632 to 3,160 CFM.
HOUSING
The embossed aluminum casing is lightweight yet durable. Each fan section is baffled to prevent short cycling of the discharge air. The units are designed to mount flush to the ceiling and are compliant with NSF requirements. Top panel contains 3/8” mounting holes to simplify installation. The housing is sloped to provide more efficient condensate draining. An uniquely shaped control access cover allows for easy access for service in confined spaces.
COIL
Copper hairpins consist of high efficiency 3/8” enhanced copper tubes which are staggered and mechanically expanded into corrugated aluminum fins achieving maximum heat transfer while reducing refrigerant charge. Die formed fin collars provide even fin spacing. All models are available with 6 fins per inch (FPI). Sweat connections are standard on all models.
FANS
Aluminum 12” fans are balanced to provide vibrationfree operation. Improved black plastic fan guard design and deep draw venturi achieve optimal air pattern. Fan motors and blades can be easily accessed by removing the fan guard.
MOTORS
Standard models feature highly efficient Dual Speed Electronically Commutated (EC) motors. Dual Speed EC motors are available for 115V or 208/230V and are compliant with California Title 24 regulations. All motors include thermal overload protection.
ELECTRICAL
Available for 115V, and 208/230V. All components are factory wired to terminal strips and are UL and cUL listed.
AIR DEFROST
Air Defrost models (RV6A) are designed for use in coolers down to 35°F.
ELECTRIC DEFROST
Electric Defrost models (RV6E) are designed for use in coolers and freezers down to 28°F.

Optional Features

EcoNet® Enabled Controller1 factory-installed
EcoNet® Command Center (loose)
Thermostat – Mechanical or Electric (mounted or loose)
Thermostatic Expansion Valve (mounted or loose)
Electronic Expansion Valve (mounted or loose)
Liquid Line Solenoid Valve (mounted or loose)
Insulated Drain Pan
Painted Cabinet (White or Black)
Stainless Steel Cabinet
Coated Coil (Russproof, Heresite, Bronz-Glow, or Electrofin®)
Heat Exchanger (loose)

Notes

EcoNet Control Package includes: EEV; suction pressure transducer; suction, entering air coil temp. thermistors; local on-board two-row LCD display and push-button adjustments. (Controller replaces TXV, liquid line solenoid valve, room thermostat, defrost termination and fan delay, and time clock.)

MODEL NUMBER NOMENCLATURE
CONFIGURABLE BASE MODEL

R	V	6	A	043
Brand	Style	Fins Per Inch	Defrost Type	**BTUH in
Hundreds**	Unit Voltage^	Motor Type	Revision
R – Russell	V – Low Velocity Center Mount	6 FPI	A – Air
E – Electric		A – 115/1/60
D – 208-230/1/60	D – Dual Speed EC

Note
^ 50 Hz available. Contact Factory for additional information.

Highlighted Features and Options

Russell RU-RLV-1021A Low Velocity Center Mount Unit Cooler - Fig
1

FANS AND HOUSING

Extra low height — mounts flush to ceiling
Two-way air flow for even air circulation and consistent temperature
12” aluminum fans are balanced for vibration-free operation
High efficiency fan guard design and deep draw venturi provide optimal air flow
Easy access to fan motors
Sloped housing for efficient condensate draining
UL and NSF approved

Russell RU-RLV-1021A Low Velocity Center Mount Unit Cooler - Fig
2

COILS AND DEFROST HEATERS

Available in 6 FPI
Electric defrost heaters are mounted on the air intake coil face to provide optimal performance and are easily accessible by removing the venturi panel
Independent defrost termination on each coil slab for efficient defrosting
Independent drain pan per coil

ECONET ENABLED UNIT COOLERS (Optional)
Developed in conjunction with Rheem Manufacturing specifically for walk-in coolers and freezers — it builds on the reliability and efficiency of Rheem’s EcoNet technology.

Saves energy in refrigeration systems through precise superheat and space temperature control, fan cycling, and controlling how often the system goes into defrost based on compressor runtime
Eliminates unnecessary defrosts
Maximizes energy efficiency with less compressor runtime
Reduces fan speed to 50% during off cycle for energy savings
Can be used with a condensing unit in single and multiple evaporator installations as a group
Optional EcoNet Command Center with intuitive graphical interface controls up to 32 devices (including the Command Center) through one display, provides continuous communication between system components, and the remote mount display allows for EcoNet Enabled Unit Coolers to be programmed, monitored and troubleshot outside of the space being cooled
Unique design of control access cover allows for service in confined spaces
Ample room in electrical and piping compartments for easy access

EVAPORATOR APPLICATION RATINGS

Multiple conditions combine to determine the application capacity of an evaporator. Walk-in space temperature, relative humidity, saturated suction temperature difference, and outdoor ambient temperature. All of the factors are considered when calculating an evaporator application rating. These ratings are considerably higher than the net capacity value used for DOE ratings (AWEF).
The AWEF of an evaporator is calculated using the dry coil capacity and the daily evaporator power consumption. Power consumption included fan and defrost power. Evaporator net capacity reported to the DOE database is dry coil capacity less the full power fan watts. DOE test conditions are at 10°F evaporator/SST temperature difference and less than 50% relative humidity and 96°F liquid temperature. These conditions create a uniform test method, but should not be used for equipment selection. The equipment selected would be too large for the application. Russell’s published application ratings are a guideline for proper equipment selection. They account for true operating conditions experienced by equipment.

Application Rating and Electrical Data – Air Defrost Models

| **Model Number| BTUH Capacity @ 25°F S.T. & 10°F TD| CFM| No. of Fans| Total Fan Motor AMPS – 1 Phase| MCA| MOPD
---|---|---|---|---|---|---|---
R404A| R407A/R448A/ R449A/B^| Dual Speed EC Motors †
115V| 208- 230V| 115V| 208- 230V| 115V| 208- 230V
****6 FPI*| RV6A043DA| 4,300| 5,100| 654| 1| 0.8| 0.5| 15.0| 15.0| 20.0| 20.0
RV6A053DA| 5,300| 6,300| 632| 1| 0.8| 0.5| 15.0| 15.0| 20.0| 20.0
RV6A085DA| 8,500| 10,100| 1,308| 2| 1.6| 1.0| 15.0| 15.0| 20.0| 20.0
RV6A106DA| 10,600| 12,600| 1,264| 2| 1.6| 1.0| 15.0| 15.0| 20.0| 20.0
RV6A129DA| 12,900| 15,300| 1,962| 3| 2.4| 1.5| 15.0| 15.0| 20.0| 20.0
RV6A158DA| 15,800| 18,800| 1,896| 3| 2.4| 1.5| 15.0| 15.0| 20.0| 20.0
RV6A176DA| 17,600| 20,800| 2,616| 4| 3.2| 2.0| 15.0| 15.0| 20.0| 20.0
RV6A218DA| 21,800| 26,000| 2,528| 4| 3.2| 2.0| 15.0| 15.0| 20.0| 20.0
RV6A271DA| 27,100| 32,500| 3,160| 5| 4.0| 2.5| 15.0| 15.0| 20.0| 20.0

AWEF Ratings – Air Defrost Models

Air Defrost Department of Energy Annual Walk-In Energy Factor (AWEF) Ratings

Consult Factory for 50Hz Operation

Each asterisk represents a variable character based on voltage ordered. See page 4 for nomenclature.
^ Refrigerants with large glides are rated at dew point temperature. Use R407A capacity ratings for R407C and R407F.
† Dual-speed EC motors are compliant with California Title 24 regulations.

Models were designed in anticipation of the July 2020 Department of Energy AWEF regulations for evaporators for Walk-in Coolers and Freezers in boxes less than 3,000 sq. ft. See below for AWEF compliance ratings.

If the model has a numerical value in the AWEF table, the following statement applies: “The refrigeration system is designed and certified for use in walk-in cooler applications.”

Application Rating and Electrical Data – Electric Defrost Models

| **Model Number| BTUH Capacity @ 25°F S.T. & 10°F TD| CFM| ****No. of Fans| ****208-230V/1
---|---|---|---|---|---
****R404A| ****R407A/R448A/ R449A/B^| Dual Speed EC Motors †| MCA| MOPD
Total Fan
Motor AMPS| Base
Model| EcoNet
Enabled| Base
Model| EcoNet
Enabled
6 FPI| RV6E043DDA| 4,300| 5,100| 654| 1| 0.5| 15.0| 15.0| 20| 20
RV6E053DDA| 5,300| 6,300| 632| 1| 0.5| 15.0| 15.0| 20| 20
RV6E085DDA| 8,500| 10,100| 1,308| 2| 1.0| 15.0| 15.0| 20| 20
RV6E106DDA| 10,600| 12,600| 1,264| 2| 1.0| 15.0| 15.0| 20| 20
RV6E129DDA| 12,900| 15,300| 1,962| 3| 1.5| 15.0| 15.0| 20| 20
RV6E158DDA| 15,800| 18,800| 1,896| 3| 1.5| 15.0| 15.0| 20| 20
RV6E176DDA| 17,600| 20,800| 2,616| 4| 2.0| 15.0| 15.0| 20| 20
RV6E218DDA| 21,800| 26,000| 2,528| 4| 2.0| 15.0| 15.0| 20| 20
RV6E271DDA| 27,100| 32,500| 3,160| 5| 2.5| 15.0| 15.0| 20| 20
| ****Model Number| Heater Amps| ****Heater Watts
---|---|---|---
230V/1
6 FPI**| RV6E043DDA| 2.6| 600
RV6E053DDA| 2.6| 600
RV6E085DDA| 5.2| 1,200
RV6E106DDA| 5.2| 1,200
RV6E129DDA| 7.8| 1,800
RV6E158DDA| 7.8| 1,800
RV6E176DDA| 7.8| 1,800
RV6E218DDA| 10.4| 2,400
RV6E271DDA| 13.0| 3,000

Consult Factory for 50Hz Operation
^ Refrigerants with large glides are rated at dew point temperature. Use R407A capacity ratings for R407C and R407F.
† Dual-speed EC motors are compliant with California Title 24 regulations.

AWEF Ratings – Electric Defrost Models

Electric Defrost Department of Energy Annual Walk-In Energy Factor (AWEF) Ratings

Models were designed in anticipation of the July 2020 Department of Energy AWEF regulations for evaporators for Walk-in Coolers and Freezers in boxes less than 3,000 sq. ft. See below for AWEF compliance ratings.

If the model has a numerical value in the AWEF table on left, the following statement applies: “The refrigeration system is designed and certified for use in walk-in cooler applications.”

Distributor Nozzle – All Models

Model Number	Part Numbers	Number of Circuits
Air Defrost	Electric Defrost	Nozzle @ Liq. Temp.
@ Liq. Temp.**	EEV @ Liq. Temp.
50°F	100°F	50°F

R404A

6 FPI| RV6A043DA| RV6E043DDA| L, #1/6| L, #1/2| SBFSE-AA-C| SBFSE- AA-C| SER-AA| SER-A| 2
---|---|---|---|---|---|---|---|---|---
RV6A053DA| RV6E053DDA| L, #1/6| L, #1/2| SBFSE-AA-C| SBFSE-AA-C| SER-AA| SER-A| 2
RV6A085DA| RV6E085DDA| L, #1/4| L, #3/4| SBFSE-A-C| SBFSE-A-C| SER-A| SER-B| 2
RV6A106DA| RV6E106DDA| L, #1/3| L, #1| SBFSE-A-C| SBFSE-A-C| SER-A| SER-B| 4
RV6A129DA| RV6E129DDA| L, #1/2| L, #1-1/2| SBFSE-A-C| SBFSE-B-C| SER-B| SER-B| 6
RV6A158DA| RV6E158DDA| L, #1/2| L, #1-1/2| SBFSE-A-C| SBFSE-B-C| SER-B| SER-B| 6
RV6A176DA| RV6E176DDA| L, #3/4| L, #2| SBFSE-A-C| SBFSE-B-C| SER-B| SER-C| 6
RV6A218DA| RV6E218DDA| L, #3/4| L, #2| SBFSE-B-C| SBFSE-C-C| SER-B| SER-C| 8
RV6A271*DA| RV6E271DDA| G, #1| G, #2-1/2| SBFSE-B-C| SBFSE-C-C| SER-C| SER-C| 12

R407A/ R448A/ R449A/B†

6 FPI| RV6A043DA| RV6E043DDA| L, #1/6| L, #1/2| SBFDE-AAA-C| SBFDE- AA-C| SER-AA| SER-AA| 2
---|---|---|---|---|---|---|---|---|---
RV6A053DA| RV6E053DDA| L, #1/4| L, #1/2| SBFDE-AA-C| SBFDE-AA-C| SER-AA| SER-A| 2
RV6A085DA| RV6E085DDA| L, #1/3| L, #3/4| SBFDE-AA-C| SBFDE-A-C| SER-A| SER-A| 2
RV6A106DA| RV6E106DDA| L, #1/2| L, #1| SBFDE-A-C| SBFDE-A-C| SER-A| SER-B| 4
RV6A129DA| RV6E129DDA| L, #1/2| L, #1-1/2| SBFDE-A-C| SBFDE-A-C| SER-A| SER-B| 6
RV6A158DA| RV6E158DDA| L, #3/4| L, #1-1/2| SBFDE-A-C| SBFDE-B-C| SER-B| SER-B| 6
RV6A176DA| RV6E176DDA| L, #3/4| L, #2| SBFDE-A-C| SBFDE-B-C| SER-B| SER-B| 6
RV6A218DA| RV6E218DDA| L, #1| L, #2| SBFDE-B-C| SBFDE-B-C| SER-B| SER-C| 8
RV6A271*DA| RV6E271DDA| G, #1| G, #2-1/2| SBFDE-B-C| SBFDE-C-C| SER-C| SER-C| 12

Distributor lines are 3/16” diameter and 14” long. Distributor connection size is 1/2” for Air and Electric Defrost models with “L” nozzle and 7/8” for models with “G” nozzle.

Each asterisk represents a variable character based on voltage ordered. See page 2 for nomenclature.
^ TXV selections are based on +25°F suction temp., 8°F to 12°F evaporator TD. Contact factory for operating conditions outside of this range.
† SBFDE expansion valves are compatible with R407A, R448A and R449A/B. For other valves, follow manufacturers selection guidelines.
If unit is not configured with a factory installed TXV, unit will include shipped-loose nozzles sized for 100°F liquid temperature.

Specifications

**Model Number| TXV †
Type| Refrigerant Connections| ****No. of Hanger Slot Locations| ****Dimensions (Inches)| Approx. Weight (Lbs.)
---|---|---|---|---|---
Air Defrost| Electric Defrost| Liquid Line 1| Suction| Length| Width| Height| Figure| Net| Ship
6 FPI| RV6A043A| RV6E043D*A| EXT| 3/8| 5/8| 2| 32| 28-3/8| 13-3/4| 1| 60| 195
---|---|---|---|---|---|---|---|---|---|---|---|---
RV6A053A| RV6E053D*A| EXT| 3/8| 5/8| 2| 32| 28-3/8| 13-3/4| 1| 60| 195
RV6A085*A| RV6E085DA| EXT| 3/8| 5/8| 3| 52| 28-3/8| 13-3/4| 2| 80| 215
RV6A106A| RV6E106D*A| EXT| 3/8| 5/8| 3| 52| 28-3/8| 13-3/4| 2| 80| 215
RV6A129A| RV6E129D*A| EXT| 3/8| 7/8| 4| 72| 28-3/8| 13-3/4| 3| 100| 235
RV6A158*A| RV6E158DA| EXT| 3/8| 7/8| 4| 72| 28-3/8| 13-3/4| 3| 100| 235
RV6A176A| RV6E176D*A| EXT| 3/8| 7/8| 5| 92| 28-3/8| 13-3/4| 4| 125| 285
RV6A218*A| RV6E218DA| EXT| 3/8| 7/8| 5| 92| 28-3/8| 13-3/4| 4| 125| 285
RV6A271*A| RV6E271DA| EXT| 3/8| 1-1/8| 6| 112| 28-3/8| 13-3/4| 5| 155| 340

Each asterisk represents a variable character based on voltage and motor ordered. See page 2 for nomenclature.
† Externally equalized.
1. For units with mounted TXV components. See Nozzle/TXV table for distributor connection size when TXV is field installed.

Physical Dimensions

Russell RU-RLV-1021A Low Velocity Center Mount Unit Cooler - Fig
6

Notes:

Measurements noted on the end view drawing are the same for all units.
All mounting holes are 3/8” diameter.
Mounting holes on four and five fan units are located 20” on center at each tube sheet.
All dimensions are in inches.

Russell RU-RLV-1021A Low Velocity Center Mount Unit Cooler - Fig
7

Mounts flush to ceiling to maximize storage space Easy access to fan motors Sloped housing for efficient condensate draining

Physical Dimensions

Russell RU-RLV-1021A Low Velocity Center Mount Unit Cooler - Fig
8 Russell RU-RLV-1021A Low
Velocity Center Mount Unit Cooler - Fig 9

Physical Dimensions

Russell RU-RLV-1021A Low Velocity Center Mount Unit Cooler - Fig
10

Russell’s Low Velocity Center Mount Unit Cooler can be used in combination with Next-Gen MiniCon Condensing Units to provide complete refrigeration solutions for small to medium walk-ins

Physical Dimensions

Russell RU-RLV-1021A Low Velocity Center Mount Unit Cooler - Fig
12

Due to continuing product development, specifications are subject to change without notice.

201 Thomas French Drive, Scottsboro, AL 35769
• PHONE 256-259-7400
• FAX 256-259-7478
• russell.htpg.com
E-mail or call us for help: parts@htpg.com
or 1-855-HTPARTS (1-855-487-2787)