Liquid Management
SUCTION LINE
ACCUMULATORS
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SUCTION LINE ACCUMULATORS
Low Pressure | MAXIMUM WORKING PRESSURE: 450 PSIG
Features
Suction line accumulators are designed to act as a temporary holding vessel between the outlet of the evaporator and the inlet of the compressor. During flood-back conditions, the accumulator traps the liquid charge and allows it to be evaporated and fed to the compressor at a controlled rate.
- Nitrogen tested for cleanliness
- Nickel plated connections and powder-paint finish
- Screened orifice for proper oil return
- Integrated 435°F fusible plug on vessels over 3″ in diameter (smaller vessels are exempt)
| Catalog Number | ODS | Dimensions | Recommended Tons of Refrigeration | Holding Capacity | |||||||||||||
| R134A | R22 | R404A | |||||||||||||||
| -40ºF | 40ºF | -40ºF | 40ºF | -40ºF | 40ºF | ||||||||||||
| A | B | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | R410A | |||
| Vert. | A3-04(HP)* | 1/2" | 3” | 11" | 0.01 | 0.07 | 0.1 | 0.58 | 0.02 | 0.16 | 0.15 | 0.91 | 0.02 | 0.14 | 0.12 | 0.72 | 1.50 lbs |
| A4-04 | 1/2" | 4" | 11" | 0.01 | 0.07 | 0.1 | 0.58 | 0.02 | 0.16 | 0.15 | 0.91 | 0.02 | 0.14 | 0.12 | 0.72 | 2.75 lbs | |
| A4-05 | 5/8" | 4" | 11" | 0.01 | 0.17 | 0.12 | 1.28 | 0.03 | 0.35 | 0.19 | 2.01 | 0.03 | 0.31 | 0.15 | 1.59 | 3.00 lbs | |
| A4-06 | 3/4" | 4" | 10" | 0.02 | 0.25 | 0.16 | 1.92 | 0.04 | 0.53 | 0.25 | 3.01 | 0.03 | 0.47 | 0.19 | 2.39 | 2.50 lbs | |
| A4-06B | 3/4" | 4" | 10.63" | 0.02 | 0.25 | 0.16 | 1.92 | 0.04 | 0.53 | 0.25 | 3.01 | 0.03 | 0.47 | 0.19 | 2.39 | 2.75 lbs | |
| A5-07 | 7/8" | 5" | 10" | 0.04 | 0.34 | 0.35 | 2.55 | 0.09 | 0.7 | 0.55 | 4 | 0.08 | 0.62 | 0.44 | 3.17 | 3.25 lbs | |
| A5-07F | 7/8" | 5" | 13" | 0.04 | 0.34 | 0.35 | 2.55 | 0.09 | 0.7 | 0.55 | 4 | 0.08 | 0.62 | 0.44 | 3.17 | 4.75 lbs | |
| A6-11 | 1 1/8" | 6" | 18.75" | 0.06 | 0.78 | 0.51 | 5.84 | 0.14 | 1.61 | 0.8 | 9.16 | 0.12 | 1.42 | 0.63 | 7.26 | 11.25 lbs | |
| A6-11W | 1 1/8" | 6" | 15" | 0.06 | 0.78 | 0.51 | 5.84 | 0.14 | 1.61 | 0.8 | 9.16 | 0.12 | 1.42 | 0.63 | 7.26 | 8.50 lbs | |
| A6-13 | 1 3/8" | 6" | 23" | 0.17 | 1.46 | 1.29 | 10.9 | 0.35 | 3.02 | 2.02 | 17.09 | 0.31 | 2.66 | 1.6 | 13.55 | 14.00 lbs | |
| A6-13Z | 1 3/8" | 6" | 20.25" | 0.17 | 1.46 | 1.29 | 10.9 | 0.35 | 3.02 | 2.02 | 17.09 | 0.31 | 2.66 | 1.6 | 13.55 | 12.00 lbs | |
| A6-15 | 1 5/8" | 6" | 23" | 0.44 | 2.42 | 3.27 | 18.04 | 0.9 | 4.99 | 5.12 | 28.27 | 0.79 | 4.4 | 4.06 | 22.42 | 13.00 lbs | |
| A6-15R | 1 5/8" | 6" | 24.75" | 0.44 | 2.42 | 3.27 | 18.04 | 0.9 | 4.99 | 5.12 | 28.27 | 0.79 | 4.4 | 4.06 | 22.42 | 14.25 lbs | |
| Horz | A6-11HZ | 1 1/8" | 6" | 16.5" | 0.06 | 0.78 | 0.51 | 5.84 | 0.14 | 1.61 | 0.8 | 9.16 | 0.12 | 1.42 | 0.63 | 7.26 | 10.75 lbs |
| A6-13HZ | 1 3/8" | 6" | 22.5" | 0.17 | 1.46 | 1.29 | 10.9 | 0.35 | 3.02 | 2.02 | 17.09 | 0.31 | 2.66 | 1.6 | 13.55 | 15.00 lbs | |
| A6-15HZB | 1 5/8" | 6" | 30" | 0.44 | 2.42 | 3.27 | 18.04 | 0.9 | 4.99 | 5.12 | 28.27 | 0.79 | 4.4 | 4.06 | 22.42 | 20.00 lbs | |
| A6-15HZC | 2 1/8" | 6" | 48" | 0.85 | 5.12 | 6.34 | 38.09 | 1.75 | 10.55 | 9.94 | 59.69 | 1.55 | 9.3 | 7.89 | 47.34 | 34.75 lbs | |
All capacities are calculated for 85%.
*For heat pump models, add “HP” to the end of the catalog number.
(ex: A3-04 becomes A3-04HP)
How to choose
The accumulator should not be sized for less than 50% of the total system charge. The minimum capacity is the lowest amount that will ensure proper oil return.
For refrigerants and conditions not listed, see our online sizing calculator or contact us for assistance.
SUCTION LINE ACCUMULATORS
High Pressure | MAXIMUM WORKING PRESSURE: 675 PSIG
Features
Suction line accumulators are designed to act as a temporary holding vessel between the outlet of the evaporator and the inlet of the compressor. During flood-back conditions, the accumulator traps the liquid charge and allows it to be evaporated and fed to the compressor at a controlled rate.
- Welded design for higher strength and a powder paint finish
- Nickel plated connections and powder-paint finish
- Screened orifice for proper oil return
- Integrated 435°F fusible plug on UL models over 3″ in diameter (smaller vessels are exempt)
| Catalog Number | ODS | Dimensions | Recommended Tons of Refrigeration | Holding Capacity | |||
| R410A | |||||||
| 40ºF | |||||||
| A | B | Min | Max | R410A | |||
| UL Listed | AH3-04(HP*) | 1/2" | 3” | 11" | 0.22 | 1.32 | 1.5 lbs |
| AH4-04 | 1/2" | 4" | 11" | 0.22 | 1.32 | 2.5 lbs | |
| AH4-05 | 5/8" | 4" | 11" | 0.28 | 2.91 | 3 lbs | |
| AH4-05A | 5/8" | 4" | 6.63" | 0.28 | 2.91 | 1 lbs | |
| AH4-05B | 5/8" | 4" | 11" | 0.28 | 2.91 | 3.25 lbs | |
| AH4-06 | 3/4" | 4" | 10" | 0.36 | 4.36 | 2.5 lbs | |
| AH4-06B | 3/4" | 4" | 10.63" | 0.36 | 4.36 | 3.5 lbs | |
| AH5-07 | 7/8" | 5" | 10" | 0.8 | 7.36 | 3.25 lbs | |
| AH5-07F | 7/8" | 5" | 13" | 0.8 | 7.36 | 4.75 lbs | |
| AH6-11 | 1 1/8" | 6" | 18.75" | 1.16 | 14.73 | 12 lbs | |
| AH6-11AE | 1 1/8" | 6" | 15" | 1.16 | 14.73 | 8.25 lbs | |
| AH6-13 | 1 3/8" | 6" | 23" | 2.93 | 24.74 | 13.5 lbs | |
| AH6-13Z | 1 3/8" | 6" | 20.25" | 2.93 | 24.74 | 11.5 lbs | |
| AH6-15 | 1 5/8" | 6" | 23" | 7.42 | 40.93 | 13 lbs | |
| AH6-15R | 1 5/8" | 6" | 24.75" | 7.42 | 40.93 | 13.5 lbs | |
| ASME | AH8-15 | 1 5/8" | 8.625" | 22" | 7.42 | 40.93 | 24 lbs |
| AH8-21 | 2 1/8" | 8.625" | 22" | 14.4 | 98.54 | 24 lbs | |
| AH10-21 | 2 1/8" | 10.75" | 22" | 14.4 | 98.54 | 33.75 lbs | |
| AH10-25 | 2 5/8" | 10.75" | 22" | 20.46 | 140.23 | 29.5 lbs | |
| AH10-31 | 3 1/8" | 10.75" | 25" | 28.8 | 208.45 | 25.25 lbs | |
| AH12-31 | 3 1/8" | 12.75" | 25" | 28.8 | 208.45 | 52 lbs | |
| Catalog Number | ODS | Dimensions | Recommended Tons of Refrigeration | Holding Capacity | |||
| R410A | |||||||
| 40ºF | |||||||
| A | B | Min | Max | R410A | |||
| UL Listed | AH3-04(HP*) | 1/2" | 3” | 11" | 0.22 | 1.32 | 1.5 lbs |
| AH4-04 | 1/2" | 4" | 11" | 0.22 | 1.32 | 2.5 lbs | |
| AH4-05 | 5/8" | 4" | 11" | 0.28 | 2.91 | 3 lbs | |
| AH4-05A | 5/8" | 4" | 6.63" | 0.28 | 2.91 | 1 lbs | |
| AH4-05B | 5/8" | 4" | 11" | 0.28 | 2.91 | 3.25 lbs | |
| AH4-06 | 3/4" | 4" | 10" | 0.36 | 4.36 | 2.5 lbs | |
| AH4-06B | 3/4" | 4" | 10.63" | 0.36 | 4.36 | 3.5 lbs | |
| AH5-07 | 7/8" | 5" | 10" | 0.8 | 7.36 | 3.25 lbs | |
| AH5-07F | 7/8" | 5" | 13" | 0.8 | 7.36 | 4.75 lbs | |
| AH6-11 | 1 1/8" | 6" | 18.75" | 1.16 | 14.73 | 12 lbs | |
| AH6-11AE | 1 1/8" | 6" | 15" | 1.16 | 14.73 | 8.25 lbs | |
| AH6-13 | 1 3/8" | 6" | 23" | 2.93 | 24.74 | 13.5 lbs | |
| AH6-13Z | 1 3/8" | 6" | 20.25" | 2.93 | 24.74 | 11.5 lbs | |
| AH6-15 | 1 5/8" | 6" | 23" | 7.42 | 40.93 | 13 lbs | |
| AH6-15R | 1 5/8" | 6" | 24.75" | 7.42 | 40.93 | 13.5 lbs | |
| ASME | AH8-15 | 1 5/8" | 8.625" | 22" | 7.42 | 40.93 | 24 lbs |
| AH8-21 | 2 1/8" | 8.625" | 22" | 14.4 | 98.54 | 24 lbs | |
| AH10-21 | 2 1/8" | 10.75" | 22" | 14.4 | 98.54 | 33.75 lbs | |
| AH10-25 | 2 5/8" | 10.75" | 22" | 20.46 | 140.23 | 29.5 lbs | |
| AH10-31 | 3 1/8" | 10.75" | 25" | 28.8 | 208.45 | 25.25 lbs | |
| AH12-31 | 3 1/8" | 12.75" | 25" | 28.8 | 208.45 | 52 lbs | |
All capacities are calculated for 85%.
*For heat pump models, add “HP” to the end of the catalog number.
(ex: AH3-04 becomes AH3-04HP)
How to choose
The accumulator should not be sized for less than 50% of the total system charge. The minimum capacity is the lowest amount that will ensure proper oil return.
For refrigerants and conditions not listed, see our online sizing calculator or contact us for assistance.
ASME ACCUMULATORS
MAXIMUM WORKING PRESSURE: 450 PSIG
Features
ASME accumulators are used to prevent costly damage of the compressor from liquid slugging during a flood-back condition. Our accumulators capture excess liquid leaving the evaporator, allowing the system to vaporize it during normal operation, returning only refrigerant vapor to the compressor. A weep hole is included on the internal tube to facilitate proper oil return from the accumulator to the operating system.
- Low pressure drop
- Positive oil return
- Powder paint finish to protect the accumulator during condensation
How To Choose
The accumulator is placed between the evaporator and compressor to intercept excess liquid. To size the accumulator, select the model with the tonnage nearest to the tonnage of the operating system.
Care must be taken to evaluate the amount of liquid holding capacity needed. We recommend the holding capacity not be less than 50% of the system charge. The minimum tonnage is the lowest capacity that will provide adequate oil return from the accumulator.
While these are general guidelines, it is the responsibility of the system designer to select and apply the accumulator properly.
Contact us for help in selecting the proper model.
| Catalog Number | Dimensions | ODS | Holding Capacity | Recommended Tons of R22 | Recommended Tons of R404A | ||||||||||||||||||||||
| -40°F | -20°F | 0°F | 20°F | 40°F | -40°F | -20°F | 0°F | 20°F | 40°F | ||||||||||||||||||
| A | B | R404A | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | |||||
| Vert. | A8-15 | 8.625" | 22" | 1 5/8" | 26 lbs | 0.9 | 4.9 | 1.4 | 8.1 | 2.3 | 12.8 | 3.5 | 19.3 | 5.1 | 28.2 | 0.7 | 4.4 | 1.3 | 7.4 | 2.1 | 12.1 | 3.4 | 18.8 | 5.1 | 28.3 | ||
| A8-21 | 8.625" | 22" | 2 1/8" | 26 lbs | 1.7 | 10.5 | 2.8 | 17.2 | 4.5 | 27 | 6.8 | 40.8 | 9.9 | 59.6 | 1.5 | 9.3 | 2.6 | 15.7 | 4.2 | 25.5 | 6.6 | 39.7 | 9.9 | 59.8 | |||
| A10-21 | 10.75" | 22" | 2 1/8" | 38 lbs | 1.7 | 10.5 | 2.8 | 17.2 | 4.5 | 27 | 6.8 | 40.8 | 9.9 | 59.6 | 1.5 | 9.3 | 2.6 | 15.7 | 4.2 | 25.5 | 6.6 | 39.7 | 9.9 | 59.8 | |||
| A10-25 | 10.75" | 22" | 2 5/8" | 38 lbs | 2.4 | 16 | 4 | 26.2 | 6.4 | 41 | 9.6 | 62 | 14.1 | 90.5 | 2.2 | 14.1 | 3.7 | 23.9 | 6 | 38.7 | 9.4 | 60.2 | 14.1 | 90.7 | |||
| A10-31 | 10.75" | 25" | 3 1/8" | 30 lbs | 3.5 | 23.4 | 5.7 | 38.3 | 9 | 60.1 | 13.6 | 90.6 | 19.8 | 132.4 | 3.1 | 20.6 | 5.2 | 35 | 8.5 | 56.6 | 13.2 | 88.1 | 19.9 | 132.7 | |||
| A12-31 | 12.75" | 25" | 3 1/8" | 55 lbs | 3.5 | 23.4 | 5.7 | 38.3 | 9 | 60.1 | 13.6 | 90.6 | 19.8 | 132.4 | 3.1 | 20.6 | 5.2 | 35 | 8.5 | 56.6 | 13.2 | 88.1 | 19.9 | 132.7 | |||
| A14-41 | 14" | 34" | 4 1/8" | 87 lbs | 12 | 37.2 | 19.7 | 61 | 30.8 | 95.7 | 46.5 | 144.4 | 68 | 211 | 10.6 | 32.9 | 17.9 | 55.7 | 29.1 | 90.3 | 45.2 | 140.3 | 68.2 | 211.4 | |||
| A16-41 | 16" | 31" | 4 1/8" | 92 lbs | 12 | 37.2 | 19.7 | 61 | 30.8 | 95.7 | 46.5 | 144.4 | 68 | 211 | 10.6 | 32.9 | 17.9 | 55.7 | 29.1 | 90.3 | 45.2 | 140.3 | 68.2 | 211.4 | |||
| A20-41 | 20" | 45" | 4 1/8" | 248 lbs | 12 | 37.2 | 19.7 | 61 | 30.8 | 95.7 | 46.5 | 144.4 | 68 | 211 | 10.6 | 32.9 | 17.9 | 55.7 | 29.1 | 90.3 | 45.2 | 140.3 | 68.2 | 211.4 | |||
| Horz. | A8-25HZA | 8.625" | 24" | 2 5/8" | 32 lbs | 1.7 | 10.5 | 2.8 | 17.2 | 4.5 | 27 | 6.8 | 40.8 | 9.9 | 59.6 | 1.5 | 9.3 | 2.6 | 15.7 | 4.2 | 25.5 | 6.6 | 39.7 | 9.9 | 59.8 | ||
| A10-31HZA | 10.75" | 24" | 3 1/8" | 46 lbs | 3.5 | 23.4 | 5.7 | 38.3 | 9 | 60.1 | 13.6 | 90.6 | 19.8 | 132.4 | 3.1 | 20.6 | 5.2 | 35 | 8.5 | 56.6 | 13.2 | 88.1 | 19.9 | 132.7 | |||
All capacities are calculated for 85%.
*Custom sizes are also available
HEAT EXCHANGE ACCUMULATORS
Vertical | MAXIMUM WORKING PRESSURE: 450 PSIG
Features
Heat exchange accumulators provide an internal coil or loop to provide heat transfer. Discharge gas or liquid refrigerant can be used in the coil/loop. The coil/loop does not have a rated capacity. Therefore, field testing will need to be considered for your application if relying on certain performance conditions.
All other characteristics are the same as non-heat exchange models. UL models include an integrated fusible plug rated to 430°F.
| Catalog Number | Dimensions | ODS | Coil Conn. | Holding Capacity | Recommended Tons of R22 | Recommended Tons of R404A | ||||||||||||||||||||||
| -40°F | -20°F | 0°F | 20°F | 40°F | -40°F | -20°F | 0°F | 20°F | 40°F | |||||||||||||||||||
| A | B | R404A | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | ||||||
| UL | A6-11HE | 6" | 15" | 1 1/8" | 5/8" | 9.00 lbs | 0.1 | 1.6 | 0.2 | 2.6 | 0.3 | 4.1 | 0.5 | 6.2 | 0.8 | 9.1 | 0.1 | 1.4 | 0.2 | 2.4 | 0.3 | 3.9 | 0.5 | 6 | 0.8 | 9.1 | ||
| A6-13HE | 6" | 23" | 1 3/8" | 5/8" | 12.75 lbs | 0.3 | 3 | 0.5 | 4.9 | 0.9 | 7.7 | 1.3 | 11.6 | 2 | 17 | 0.3 | 2.6 | 0.5 | 4.5 | 0.8 | 7.3 | 1.3 | 11.3 | 2 | 17.1 | |||
| A6-15HE | 6" | 23" | 1 5/8" | 5/8" | 11.25 lbs | 0.9 | 4.9 | 1.4 | 8.1 | 2.3 | 12.8 | 3.5 | 19.3 | 5.1 | 28.2 | 0.7 | 4.4 | 1.3 | 7.4 | 2.1 | 12.1 | 3.4 | 18.8 | 5.1 | 28.3 | |||
| ASME | A8-21HE | 8.625" | 19.75" | 2 1/8" | 7/8" | 17.00 lbs | 1.7 | 10.5 | 2.8 | 17.2 | 4.5 | 27 | 6.8 | 40.8 | 9.9 | 59.6 | 1.5 | 9.3 | 2.6 | 15.7 | 4.2 | 25.5 | 6.6 | 39.7 | 9.9 | 59.8 | ||
| A10-25HE | 10.75" | 21.5" | 2 5/8" | 1 1/8" | 29.50 lbs | 2.4 | 16 | 4 | 26.2 | 6.4 | 41 | 9.6 | 62 | 14.1 | 90.5 | 2.2 | 14.1 | 3.7 | 23.9 | 6 | 38.7 | 9.4 | 60.2 | 14.1 | 90.7 | |||
| A10-31HE | 10.75" | 21.5" | 3 1/8" | 1 1/8" | 28.75 lbs | 3.5 | 23.4 | 5.7 | 38.3 | 9 | 60.1 | 13.6 | 90.6 | 19.8 | 132.4 | 3.1 | 20.6 | 5.2 | 35 | 8.5 | 56.6 | 13.2 | 88.1 | 19.9 | 132.7 | |||
All capacities are calculated for 85%.
Heat Exchange Accumulators
Horizontal | MAXIMUM WORKING PRESSURE: 450 PSIG
Features
Heat exchange accumulators provide an internal coil or loop to provide heat transfer. Discharge gas or liquid refrigerant can be used in the coil/loop. The coil/loop does not have a rated capacity. Therefore, field testing will need to be considered for your application if relying on certain performance conditions.
All other characteristics are the same as non-heat exchange models. UL models include an integrated fusible plug rated to 362°F.
| Catalog Number | Dimensions | ODS | Coil Conn. | Holding Capacity | Recommended Tons of R22 | Recommended Tons of R404A | ||||||||||||||||||||||
| -40°F | -20°F | 0°F | 20°F | 40°F | -40°F | -20°F | 0°F | 20°F | 40°F | |||||||||||||||||||
| A | B | R404A | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | ||||||
| UL | A6-13HEZ | 6" | 22.5" | 1 3/8" | 5/8" | 17.00 lbs | 0.4 | 1.8 | 0.23 | 2.9 | 0.36 | 4.5 | 0.54 | 6.8 | 0.8 | 9 | 0.4 | 1.4 | 0.2 | 2.6 | 0.33 | 4 | 0.5 | 6.5 | 0.8 | 9 | ||
| A6-15HEZ | 6" | 30" | 1 5/8" | 3/4" | 23.00 lbs | 0.5 | 2.8 | 0.57 | 4.8 | 0.9 | 7.6 | 1.4 | 11 | 3 | 15.4 | 0.5 | 2.7 | 0.5 | 4.3 | 0.83 | 7 | 1.3 | 11 | 3.2 | 16.5 | |||
| A6-15HEZC | 6" | 48" | 2 1/8" | 7/8" | 34.00 lbs | 2 | 12 | 4 | 18 | 5 | 27 | 7 | 41 | 10 | 60 | 2 | 10 | 3 | 17 | 5 | 28 | 8 | 42 | 12 | 65 | |||
| ASME | A8-25HEZA | 8.625" | 24" | 2 5/8" | 1 3/8" | 18.00 lbs | 4 | 17 | 6 | 27 | 8 | 41 | 10 | 62 | 14 | 90 | 4 | 17 | 6 | 27 | 8 | 41 | 10 | 62 | 14 | 90 | ||
| A10-31HEZ | 10.75" | 24" | 3 1/8" | 1 3/8" | 42.00 lbs | 6 | 25 | 9 | 40 | 12 | 61 | 15 | 92 | 20 | 132 | 5 | 22 | 8 | 38 | 12 | 61 | 19 | 94 | 29 | 143 | |||
All capacities are calculated for 85%.