Temporarily unavailable. Yamato Scientific America has temporarily suspended sales of the ULF and LTF freezer series to comply with EPA and CARB refrigerant requirements. Yamato is replacing them with the VUF and VLF series.
Why order the ULF901C from LabSupplies.com
Chest Style Ultra Low Freezers -40°C To -80°C, 27 cu.ft., Manual Defrost Overview
A cascade refrigeration system pairs two hermetic compressors with CFC-free R-508B and HCFC-free R-404A refrigerants. Air-cooled condensing uses two heavy-duty fans, so no liquid coolant is required. The chamber is 14-gauge zinc-coated galvanized steel; its 16-gauge steel exterior carries a powder-coated cool gray finish. Interior space accepts up to 48 racks across 766 liters.
Key Features
- Cascade refrigeration: two hermetic compressors drive the -40°C to -80°C range using CFC-free R-508B and HCFC- and CFC-free R-404A refrigerants.
- Battery-backed alarm system: audible and visual signals fire on mechanical or electrical failure, with over/under-temperature settings, an alarm silencing switch, a battery test switch, and a relay for remote alarm hook-up.
- Automatic power-failure recovery: an integrated timer system restarts the unit after a power outage.
- Air-cooled condenser: two heavy-duty fans handle heat rejection, eliminating any liquid coolant requirement.
Specifications
| Specification | Detail |
|---|---|
| Capacity | 27 cu.ft. |
| Temperature Range | -40°C to -80°C |
| Defrost | Manual |
| Interior Capacity | 766 L / 27 cu.ft. |
| Rack Capacity | 48 racks |
| Interior Dimensions | 67" × 23" × 31.25" (170 × 57 × 79 cm) |
| Exterior Dimensions | 98" × 36" × 43.5" (248 × 91 × 110 cm) |
| Temperature Control System | Digital control with dual display (set point and chamber temperature); scan button for temperature setting; tamper-proof lockout |
| Refrigeration System | Cascade type — two hermetic compressors |
| Refrigerant | CFC-free R-508B and R-404A (CFC- & HCFC-free) |
| Condenser | Air-cooled with two heavy-duty fans; no liquid coolant required |
| Alarm System | Battery-operated alarm emits an audible and visual signal on mechanical or electrical failure; over- and under-temperature settings, alarm silencing switch, and battery test switch; relay provided for remote alarm hook-up |
| Power Failure Recovery | Automatic timer system restarts the unit after a power failure |
| Electrical Requirements | 115V / 208V / 230V, 60 Hz, 1-phase; 220V, 50/60 Hz, 1-phase |
| Optional Accessories | Chart recorder; CO₂ and LN₂ back-up system; racks; cold safety gloves |
| Material | Chamber is 14-ga. Zinc coated galvanized steel. Exterior is 16-ga. steel. Power coated cool gray |
| Country of Origin | USA |
| GTIN (Barcode) | 797059929924 |
| Shipping Weight | 1125 lbs |
| Shipping Dimensions (L × W × H) | 101 × 43 × 53 in |
| Component Size | 27 CF |
| Other Certification | UL Listed |
| Warranty | 1 year (Yamato Scientific America) |
| Service | Calibration and preventive maintenance on site by Yamato-certified technicians or at Yamato's California service center |
Compare ULF Series Models
| Model | Capacity | Temperature range | Racks | Interior (W × D × H) | Exterior |
|---|---|---|---|---|---|
| ULF001C | 2 cu.ft. | -40°C to -85°C | 6 racks | 17" × 14" × 14" (43 × 35 × 35 cm) | 25.25" × 25.75" × 40" (64 × 65 × 101 cm) |
| ULF101C | 3 cu.ft. | -40°C to -85°C | 8 racks | 24" × 12" × 18" (60 × 30 × 45 cm) | 34.5" × 25.25" × 48" (87 × 64 × 121 cm) |
| ULF201C | 5 cu.ft. | -40°C to -85°C | 15 racks | 30" × 18" × 16" (76 × 45 × 40 cm) | 40.5" × 31" × 47" (102 × 81 × 119 cm) |
| ULF301C | 9 cu.ft. | -40°C to -85°C | 16 racks | 46" × 16" × 20" (116 × 40 × 50 cm) | 57.5" × 29" × 46.5" (146 × 73 × 116 cm) |
| ULF401C | 12 cu.ft. | -40°C to -85°C | 27 racks | 55" × 19" × 20" (139 × 48 × 50 cm) | 65.5" × 32" × 47.5" (166 × 81 × 120 cm) |
| ULF501C | 14 cu.ft. | -40°C to -85°C | 30 racks | 62" × 20" × 20" (157 × 50 × 50 cm) | 72.5" × 33" × 47.5" (184 × 83 × 120 cm) |
| ULF601C | 17 cu.ft. | -40°C to -85°C | 36 racks | 69" × 20" × 21" (175 × 50 × 53 cm) | 81.25" × 33.5" × 48.5" (206 × 85 × 123 cm) |
| ULF701C | 21 cu.ft. | -40°C to -80°C | 36 racks | 81" × 21.5" × 21" (205 × 54 × 53 cm) | 91" × 36" × 49" (231 × 91 × 124 cm) |
| ULF801C | 22 cu.ft. | -40°C to -85°C | 36 racks | 67" × 19" × 30" (170 × 48 × 76 cm) | 98" × 36" × 43.5" (248 × 91 × 110 cm) |
| ULF901C (this model) | 27 cu.ft. | -40°C to -80°C | 48 racks | 67" × 23" × 31.25" (170 × 57 × 79 cm) | 98" × 36" × 43.5" (248 × 91 × 110 cm) |
Ordering Information
| Catalog number | GTIN / UPC |
|---|---|
| ULF-901C | 797059929924 |
| Manufacturer | Yamato Scientific |
| Manufacturer part number | ULF-901C |
| UNSPSC | 41103000 — Ultra Low Freezer |
| Export classification (ECCN) | EAR99 |
Documents & Downloads
More in This Series
- Yamato ULF801UP Platinum Upright Style Ultra Low Freezers -40°C To -80°C, 28 cu.ft., Manual Defrost
- Yamato ULF901UP Platinum Upright Style Ultra Low Freezers -40°C To -80°C, 30 cu.ft., Manual Defrost
- Yamato ULF801C Chest Style Ultra Low Freezers -40°C To -85°C, 22 cu.ft., Manual Defrost
- Yamato ULF801CP Platinum Chest Style Ultra Low Freezers -40°C To -85°C, 22 cu.ft., Manual Defrost
- Yamato ULF701CP Platinum Chest Style Ultra Low Freezers -40°C To -80°C, 21Cu.Ft., Manual Defrost
- Yamato ULF901U Upright Style Ultra Low Freezers -40°C To -80°C, 31 cu.ft., Manual Defrost
View all Ultra-Low Temperature Freezers →
Frequently Asked Questions
What is the storage capacity and how many racks does it hold?
Interior capacity is 27 cu.ft. (766 liters), and the chamber accepts up to 48 racks. Interior dimensions measure 67" × 23" × 31.25" (170 × 57 × 79 cm).
What electrical supply does the ULF901C require?
The unit supports 115V, 208V, and 230V at 60 Hz single-phase, plus 220V at 50/60 Hz single-phase. Confirm your available circuit before installation.
What happens to stored samples during a power failure?
An automatic timer system restarts the unit after a power outage. A battery-backed alarm also emits audible and visual signals on electrical or mechanical failure, with a relay for remote alarm hook-up.
Is the refrigerant environmentally compliant?
Yes. The ULF901C uses CFC-free R-508B and CFC- and HCFC-free R-404A refrigerants, paired with an air-cooled condenser that needs no liquid coolant.
What is the UNSPSC code for the Yamato ULF901C?
The Yamato ULF901C is classified under UNSPSC 41103000 (ultra low freezer).
Where is the Yamato ULF901C manufactured?
Yamato Scientific lists USA as the country of origin for the ULF901C.
Is there a spec sheet or brochure for the Yamato ULF901C?
Yes. The Yamato ULF Series Ultra-Low Freezer brochure (845 KB PDF) is linked under Documents & Downloads on this page.
How does the Yamato ULF901C compare with the other ULF Series models?
Yamato builds this ULF Series line in 10 sizes: 2 cu.ft. (ULF001C), 3 cu.ft. (ULF101C), 5 cu.ft. (ULF201C), 9 cu.ft. (ULF301C), 12 cu.ft. (ULF401C), 14 cu.ft. (ULF501C), 17 cu.ft. (ULF601C), 21 cu.ft. (ULF701C), 22 cu.ft. (ULF801C) and 27 cu.ft. (ULF901C). The comparison table on this page lists capacity, temperature range, racks, interior (w × d × h) and exterior side by side.
Which alarms does the Yamato ULF901C have?
Yamato lists these alarms for the ULF901C: battery-operated alarm emits an audible and visual signal on mechanical or electrical failure; over- and under-temperature settings, alarm silencing switch, and battery test switch; relay provided for remote alarm hook-up.
What are the interior dimensions of the Yamato ULF901C?
The Yamato ULF901C chamber measures 67" × 23" × 31.25" (170 × 57 × 79 cm) inside (W × D × H).
What certifications does the Yamato ULF901C carry?
Yamato lists the ULF901C as UL Listed.
What optional accessories are available for the Yamato ULF901C?
Yamato offers these options for the ULF901C: chart recorder; CO₂ and LN₂ back-up system; racks; cold safety gloves.
What are the electrical requirements for the Yamato ULF901C?
Yamato specifies 115V / 208V / 230V, 60 Hz, 1-phase; 220V, 50/60 Hz, 1-phase for the ULF901C.
What are the shipping dimensions and weight of the Yamato ULF901C?
Yamato's shipping data lists the ULF901C at 101 × 43 × 53 in and 1125 lb packed.
