What it is

The Espec EN112 is the 112 cu ft (3,171 L) size of Espec's Platinum large-volume chamber line, a compact walk-in-style test chamber with a 48 in × 48 in × 84 in workspace that a technician can step into to load large assemblies, solar panels, and full products. It reaches −70 to +180 °C with temperature change rates to 8.6 °C/min and optional 10 to 95% RH humidity, using cascade or single-stage refrigeration depending on the low-temperature range. Four model families cover temperature-only or temperature-and-humidity at a −70 °C or −35 °C low end.

• Workspace 112 cu ft (3,171 L); 48 in × 48 in × 84 in interior
• Temperature range −70 to +180 °C (ENZ/ENX) or −35 to +180 °C (ENU/ENL)
• Humidity 10 to 95% RH (ENX/ENL families)
• Temperature change rates up to 8.6 °C/min (top water-cooled variant)
• Cascade refrigeration (−70 °C families) or single-stage (−35 °C families)
• 2,000 CFM airflow; three levels of overheat and two levels of overcool protection
• P-300 touch-screen controller; product-temperature control; web and API access
• UL 508A certified or CE-marked
• Stainless-steel interior; 4 in (100 mm) cable port; heated window with LED lighting

What it is used for

The EN112 brings walk-in-style capacity to a factory-built chamber:

• Large-assembly and full-product testing — temperature and humidity testing of large or completed products in a walk-in-style workspace
• Solar panel testing — batch conditioning of solar modules, a common 112 cu ft application
• Temperature cycling — hot and cold cycling to −70 °C and +180 °C
• Combined temperature-humidity work — 10 to 95% RH on the ENX and ENL families
• Batch reliability testing — conditioning multiple large units at once

Model families

Each family is available in three refrigeration and cooling tiers — 6NWL, 12NWL, and 15NW — that set the change rate and cooling capacity. Per-tier figures are in the Specifications tab.

Key features

Walk-in-style workspace. A 48 in × 48 in × 84 in interior (3,171 L) that a technician can enter, with a heated window and LED lighting.

Wide range with fast cycling. −70 to +180 °C and change rates to 8.6 °C/min in the 112 cu ft size.

Configurable refrigeration. Cascade (−70 °C) or single-stage (−35 °C) systems in three capacity tiers, water-cooled.

Serviceable and compliant. Hinged refrigeration service panels, analog refrigeration gauges, three levels of overheat and two levels of overcool protection, and UL 508A certification or CE marking.

Product-temperature control. The P-300 console supports feedback control from a sensor on the product, with a temperature-boost feature for faster transitions.

Controller

The exclusive Espec P-300 touch-screen programmer and controller runs the chamber from a console with a USB port and product-temperature control, and supports remote access via web browser or API.

Why engineers pick it

Walk-in capacity without a walk-in build. A 112 cu ft step-in workspace as a factory-built chamber rather than a custom room.

Full range in one unit. −70 to +180 °C with optional 10 to 95% RH.

Configurable speed and cooling. Three refrigeration tiers match change-rate and capacity needs.

Connected, product-aware control. P-300 with product-temperature control and web and API access.

Configuring and ordering

Choose the family (ENZ, ENU, ENX, or ENL) for your low-temperature range and humidity need, then the refrigeration tier (6NWL, 12NWL, or 15NW). Note that all tiers are water-cooled and require a facility cooling-water supply of 53 to 121 LPM (14 to 32 GPM) at a 30 °C inlet, and that the 15NW tier is significantly deeper than the NWL models.

Full per-model specifications are in the Specifications tab. Select your configuration on this page. For solar-panel fixturing, humidity configuration, or facility cooling-water planning, contact W5 Engineering and we will configure and quote it with you.