The Haier DW-86L830BPT is a variable-speed, -86°C ultra-low temperature freezer that pairs 830 L (29.3 cu ft) of upright storage with Haier Biomedical's intelligent frequency-conversion refrigeration. Two variable-speed compressors modulate output to hold cabinet temperature to ±3°C stability while cutting energy draw, and a full-width LCD touchscreen puts setpoint, alarm history and USB data export at eye level. It is built for centralized biobanks and core facilities that need large-capacity -80°C storage without the energy penalty of fixed-speed cascade systems.
Key Specifications
| Spec | Value |
| Temperature range | -40°C to -86°C |
| Cooling performance | -86°C |
| Capacity | 830 L / 29.3 cu ft (brochure column: 829 L / 29.2 cu ft) |
| Cabinet type | Upright |
| Refrigeration | Dual variable-speed (frequency-conversion) compressors, 100% HC refrigerant |
| Temperature stability | ±3°C |
| Controller / display | Microprocessor, LCD touchscreen |
| Inner doors | 4 |
| Shelves | 3 stainless-steel adjustable |
| Sample capacity | 600 2-inch boxes |
| Sound level | 43.5 dB(A) |
| Max power | 1400 W |
| Alarms | High/low temp, power failure, door ajar, hot condenser, low battery, sensor error, high ambient, high/low voltage, start-up delay |
| Backup systems | LN₂ and CO₂ backup optional |
| Certification | UL, ENERGY STAR |
| List price | $21,800.00 |
| LLS price | $18,530.00 |
Application Profile
Frequency conversion is the headline of the BPT platform. Instead of cycling fixed-speed compressors on and off, the DW-86L830BPT continuously trims compressor speed to the actual heat load, which is why Haier rates it as ENERGY STAR qualified and quotes a sound level of just 43.5 dB(A) — quiet enough to sit in an occupied lab. The 100% hydrocarbon refrigerant circuit has effectively zero global-warming potential, aligning the unit with institutional sustainability targets while keeping cascade cooling reliable down to -86°C.
The 830 L cabinet is organized into four insulated inner doors and three adjustable stainless-steel shelves, so opening one section to retrieve samples exposes only a quarter of the load to ambient air. That compartmentalization, paired with the ±3°C uniformity, protects long-term stability of cell lines, plasma, reagents and nucleic-acid libraries. Two rear porthole access ports (25 mm) accept independent monitoring probes, and optional LN₂ or CO₂ backup can hold temperature through a compressor or power failure — a genuine consideration for irreplaceable biorepository inventory.
Frequently Asked Questions
What temperature range does the DW-86L830BPT reach? It operates across -40°C to -86°C with a cooling performance of -86°C, and holds cabinet stability to ±3°C.
How is it different from a standard fixed-speed -86°C freezer? The DW-86L830BPT uses two variable-speed (frequency-conversion) compressors that modulate to the load rather than cycling on/off. That delivers ENERGY STAR efficiency, a lower 43.5 dB(A) sound level and tighter temperature control than conventional cascade freezers.
How many samples does it hold? The 830 L cabinet accommodates up to 600 standard 2-inch cryoboxes across three adjustable stainless-steel shelves and four inner doors.
What power supply does it require? This US configuration is specified at 208-230V/60Hz. The frequency-conversion platform itself is rated for 100-230V/50-60Hz universal input.
Does it have battery backup for power failures? Alarms (including power failure and low battery) run on backup, and optional LN₂ or CO₂ backup systems can maintain -80°C storage temperature during an outage.
Ordering & Configuration
The DW-86L830BPT is a capital purchase. Add it to a quote and a Legacy Lab Supplies specialist will confirm freight class, delivery access, receptacle/voltage and any LN₂/CO₂ backup options before order, and route factory warranty registration. Lead time is quoted per configuration; contact us for current availability.
Choose the DW-86L830BPT when you need large-capacity, energy-efficient -86°C storage and want variable-speed control for quieter operation and lower running cost. Step down to the DW-86L578J or DW-86L728JA if a fixed-speed cascade freezer fits the budget; step up to the TwinCool DW-86L828BPST when dual-independent refrigeration redundancy is the priority.
