WCSK & WHPSK Series
Explosion Proof Window / Thru Wall Units
The WCSK (Cool Only) and WHPSK (Heat Pump) Series provide versatile, compact climate control for hazardous locations. Designed for both land-based and offshore applications, these units feature a slide-out chassis design for easy installation through windows or walls, delivering superior performance in Class I, Division 2 environments.
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Versatile Compact Cooling & Heating
The WCSK & WHPSK Series offer the most advanced window and thru-wall solution for hazardous locations. Constructed with a rugged, powder-coated 22-gauge enamel housing, these units are engineered to withstand extreme harsh environments, including offshore platforms and chemical facilities.
The series is defined by its installation flexibility. The WCSK provides dedicated cooling, while the WHPSK adds a reverse-cycle Heat Pump for year-round temperature management. Both models utilize a "slide-out chassis" design, allowing the outer sleeve to be installed permanently in the wall or window before sliding the refrigeration chassis into place. This simplifies maintenance and ensures a secure, hermetically sealed fit.
Slide-Out Chassis: Allows for permanent sleeve installation and easy maintenance access.
Advanced Controls: Built-in Division 2 LCD display for status/mode; optional remote mounted controls available.
Dual Configurations: Available as Cool Only (WCSK) or Heat Pump (WHPSK).
Rugged Construction: Powder-coated 22-gauge steel housing with dense insulation for noise reduction.
Global Compatibility: Available in 60Hz (115V/208V/230V) and 50Hz (220V) models.
Safety: Hermetically sealed refrigeration system with totally enclosed Div 2 fan motors.
Product Overview
Refrigerant
R-410A
R-410A
Sleeve Sizes
Q, S, M, L (Based on capacity)
S, M, L (Based on capacity)
Certification
Class 1 Div. 2, Groups B,C,D
Class 1 Div. 2, Groups B,C,D
Dehumidification
Controls
Digital w/ LCD Display
Digital w/ LCD Display
Voltage
115V / 208-230V (1-Phase)
115V / 208-230V (1-Phase)
Compliance
Heating Capacity
N/A
8,800 – 21,000 BTU/hr
Cooling Range
6,000 – 35,000 BTU/hr
10,000 – 24,000 BTU/hr
Pressurization
Function
Cool Only
Heat Pump (Cool + Heat)
Features
WCSK Series
WHPSK Series
Features
VAC Series
VACPB Series
Airflow Config
Mount Type
Dimensions (Indoor)
Dimensions (Outdoor)
System Type
Economizer Activation
Lead Time
Dimensions
Voltage
Hazardous Location
Refrigerant
Weight
Housing Material
Configurations
Product Series
WCSK & WHPSK Series
Features
Specification
Target Application
Cooling Range
Compressor Speed
Evaporator Airflow
Condenser Airflow
Reheat System
Controls
Heating Capacity
Quick Specifications
Series Product, WCSK Series
Series Product, WCSK Series
The MS Series offers a versatile split-system solution for hazardous environments where space is limited. Comprising a slim indoor air handler and a rugged outdoor condensing unit, this series utilizes inverter-driven technology to deliver precise cooling (and optional heating) ranging from 9,000 to 36,000 BTU/hr.
MS Series
The RT® Series units are engineered to provide superior performance in extreme and hazardous conditions where space is at a premium. With capacities ranging from 13,500 to 15,000 BTU/hr, these compact rooftop units are the ideal solution for crane cabins, guard shacks, and small operator buildings located in Class I, Division 2 environments.
RT Series
The VAC Series provides robust, industrial-grade cooling and heating for extreme environments, offered in capacities from 1.5 to 6 tons. For hazardous locations requiring positive pressure, the VACPB model builds upon this platform by integrating an automatic pressurization system compliant with NFPA 496 Type Z, eliminating the need for separate filtration and blower modules.
VAC & VACPB Series
