The Yamato LTF-701CP is a 594 L (21 cu.ft) chest-style low-temperature freezer holding 0 °C to −40 °C with a 42-rack capacity, built on the LTF Platinum platform with single-stage refrigeration and touch-screen control. The Yamato LTF-701CP guarantees its setpoint even in warm (+30 °C) rooms — every unit is factory-tested for seven days — and its Platinum controller adds Hi/Low alarms with email and SMS notification, USB/FTP data logging, and VNC remote access. It is the large-capacity −40 °C chest freezer for labs consolidating reagents, enzymes, and samples that do not require ultra-low storage.
Key Specifications
| Spec | Value |
| Model (focus) | Yamato LTF-701CP (LTF Platinum chest series) |
| Style | Chest / horizontal, top opening |
| Temperature range | 0 °C to −40 °C |
| Capacity | 594 L / 21 cu.ft |
| Rack capacity | 42 |
| 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 | 81 × 21.5 × 21 in (205 × 54 × 53 cm) |
| External dimensions | 91 × 36 × 49 in (231 × 91 × 124 cm) |
| Electrical | 115V 60Hz 1-phase (208V / 230V / 220V options) |
Application Profile
At 21 cu.ft and 42 racks, the LTF-701CP is the consolidation freezer for a lab's −20 °C to −40 °C inventory — the large volume of reagents, enzymes, buffers, media stocks, and samples that store correctly below ultra-low but must still stay reliably frozen. Using a right-sized low-temperature freezer for this material, rather than filling an −80 °C ultra-low, saves energy and spares compressor wear (see cold-storage-selection). Its single-stage refrigeration is sized to hold 0 to −40 °C, and because Yamato tests every LTF for seven days in a warm room, the setpoint is guaranteed even where ambient conditions are marginal.
The chest format keeps cold in the box on door openings and recovers well under a large load, which matters when 42 racks are accessed by multiple users. The Platinum controller supplies the full monitoring stack — email/SMS alarms, downloadable temperature logs, and VNC remote access — so a big −40 °C store is documented and defensible rather than an unwatched liability (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
What temperature and capacity does the LTF-701CP provide? 0 °C to −40 °C in a 594 L / 21 cu.ft chest cabinet with a 42-rack capacity.
Why choose a low-temperature freezer instead of an ultra-low? Reagents, enzymes, and many samples store correctly at −20 to −40 °C. A single-stage low-temp freezer like the LTF-701CP holds that band efficiently, while cascade ultra-low ULF units reach −80 °C for material that genuinely needs it. Matching the freezer to the temperature saves energy and 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-701CP is a capital low-temperature freezer sold through a quote. At quote we confirm electrical service (115 V standard, or 208/220/230 V), floor space and ventilation clearance for the 231 × 91 × 124 cm cabinet, rack configuration, 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-701CP for your storage program.
LTF Platinum chest low-temperature, by capacity: the LTF-701CP (594 L / 21 cu.ft, 42 racks) is the large chest unit; the LTF-301CP (255 L / 9 cu.ft) is the mid-capacity chest option, and the upright LTF-501UP trades door-opening cold retention for adjustable-shelf access. For −80 °C storage, move to the ULF Platinum ultra-low line. All share the Platinum touch-screen controller and networked alarming.
