The Yamato LTF-901CP is the largest chest in the LTF Platinum line — a 766 L (27 cu.ft) chest-style low-temperature freezer holding 0 °C to −40 °C with single-stage refrigeration and touch-screen control. The Yamato LTF-901CP is engineered to guarantee its setpoint even in warm (+30 °C) rooms — every unit is factory-tested for seven days under demanding conditions — and its Platinum controller adds Hi/Low alarms with email and SMS notification, USB/FTP data logging, and VNC remote access. It consolidates high-volume −40 °C storage into a single cabinet for core facilities and larger laboratories.
Key Specifications
| Spec | Value |
| Model (focus) | Yamato LTF-901CP (LTF Platinum chest series) |
| Style | Chest / horizontal, top opening |
| Temperature range | 0 °C to −40 °C |
| Capacity | 766 L / 27 cu.ft |
| Rack capacity | 48 |
| Refrigeration | Single-stage, one hermetic compressor |
| Refrigerants | CFC-free & HCFC-free |
| Control | Touch-screen; displays set point + chamber temp |
| Alarming | Hi/Low alarm with email + SMS; dry-contact alarm & power-fail relays; battery back-up |
| Data | Temperature graph, USB/FTP logging, VNC remote access, multi-level security |
| Defrost | Manual |
| Access port | ½" porthole (left side) with plug |
| Construction | 14-ga zinc-coated galvanized chamber; 16-ga steel exterior, powder-coated cool gray |
| Internal dimensions | 67 × 23 × 31.25 in (170 × 57 × 79 cm) |
| External dimensions | 98 × 36 × 43.5 in (248 × 91 × 110 cm) |
| Electrical | 115V / 208V / 230V, 60 Hz, 1 phase (also 220V 50/60 Hz) — confirm at order |
Application Profile
Not every sample needs −80 °C. The LTF-901CP is the high-volume anchor of the −40 °C chest line, packing 27 cu.ft and a 48-rack capacity into one cabinet. For facilities standardizing on the 0 to −40 °C band — colder than a general lab freezer but short of ultra-low — it consolidates a large box inventory into a single footprint, and a single-stage compressor holds the range far more efficiently than a cascade ultra-low system of comparable volume would (see cold-storage-selection). Because Yamato tests every LTF for seven days in a warm room, the setpoint is guaranteed even in +30 °C ambient.
The chest format keeps dense cold air layered in the box when the lid is lifted, protecting a large stored inventory from thermal excursion during frequent access. The Platinum controller supplies the same monitoring stack as the ultra-low line — email/SMS alarms, downloadable temperature logs, and VNC remote access — so a large −40 °C repository is documented and protected rather than a blind spot in the cold chain (see cold-chain-sample-storage). A ½" access port supports external probes, and a chart recorder plus CO₂/LN₂ back-up are available as options.
Frequently Asked Questions
How much can the LTF-901CP hold? 766 L / 27 cu.ft with a 48-rack capacity — the largest chest in the LTF Platinum line — in a 0 °C to −40 °C cabinet.
How is a low-temperature freezer different from an ultra-low? A low-temp freezer like the LTF-901CP uses single-stage refrigeration to hold 0 to −40 °C even at 27 cu.ft, whereas ultra-low ULF units use cascade refrigeration to reach −80 °C. Matching the freezer to the required temperature saves energy and extends compressor life.
Will it hold −40 °C in a warm room? Yes — every LTF is factory-tested for seven days under demanding conditions and its setpoint is guaranteed in warm (+30 °C) environments.
How does it alarm and log? Touch-screen control with Hi/Low alarms via email and SMS, dry-contact alarm and power-failure relays, a battery-backed alarm, and downloadable temperature logs (USB/FTP) plus VNC remote access.
Is defrost automatic? No — manual defrost, standard for laboratory low-temperature storage.
Ordering & Configuration
quote-based. The LTF-901CP is a capital low-temperature freezer sold through a quote. At quote we confirm electrical service (115 V standard, or 208/220/230 V) given the larger unit's load, floor space and ventilation clearance for the 248 × 91 × 110 cm cabinet, rack configuration for the 48-rack capacity, and chart-recorder or CO₂/LN₂ back-up options. Warranty terms are confirmed with the quote, and lead time is provided at quotation. Request a quote to configure the LTF-901CP for your storage program.
LTF Platinum chest low-temperature, by capacity: the LTF-901CP (766 L / 27 cu.ft) is the high-volume flagship chest; drop to the LTF-501CP (400 L / 14 cu.ft) or LTF-101CP (83 L / 3 cu.ft) for smaller needs. For −80 °C storage, move to the ULF Platinum ultra-low line. All share the Platinum touch-screen controller and networked alarming.
