This article covers the specifications and features of the Friedrich SH15M30A, including cooling capacity, electrical requirements, Hazardgard certification criteria and installation dimensions.
Friedrich SH15M30A specifications and Hazardgard suitability
The Friedrich SH15M30A is a cooling-only hazardous location air conditioner for enclosed areas where flammable gases or liquids are handled. Its Hazardgard certification, T4 temperature classification and arc-free internal construction distinguish it from a standard room air conditioner intended for general commercial use.
Cooling capacity and efficiency
The SH15M30A specifications begin with its thermal output. The unit delivers 14,500 BTU/h at 230 V and 14,000 BTU/h at 208 V. Those figures are also stated as 15,700/15,700 BTUH and 4.6/4.10 kW, depending on the reference standard. Its EER of 9.7 measures energy efficiency by comparing BTU output with electrical watts consumed.
- Cooling capacity at 230 V: 14,500 BTU/h, equivalent to 4.6 kW of thermal removal from the protected enclosure.
- Cooling capacity at 208 V: 14,000 BTU/h, equivalent to 4.10 kW; the voltage difference produces a measurable output change.
- EER rating: 9.7, confirming the unit’s energy efficiency relative to its electrical power draw.
- Dehumidification: Moisture removal is rated at 4.0 pints per hour, supporting humidity control alongside thermal management.
The unit operates at 60 hertz and uses R-410A refrigerant in its sealed circuit. A hot-gas bypass system lets the compressor run without coil freeze-up in ambient temperatures as low as 45°F (7°C), which is useful where seasonal conditions vary. The SH15M30A has no heating capacity and is intended for cooling only.
| Parameter | 230 V | 208 V |
| Cooling capacity (BTU/h) | 14,500 | 14,000 |
| Power input (watts) | 1,495 W | 1,443 W |
| Current draw (A) | 6.9 A | 7.5 A |
| EER | 9.7 | 9.7 |
| Refrigerant | R-410A |
Electrical specifications and airflow
The SH15M30A requires a single-phase, 230/208 V electrical supply at 60 hertz. Circuit protection must use a 250 V, 15 A breaker or time-delay fuse. This is the specification to check first: verifying that the existing hazardous-area switchgear can accommodate a 250 V, 15 A breaker or time-delay fuse avoids retrofit delays.
- Supply voltage: 230/208 V, single phase, with dual-voltage compatibility for different site electrical standards.
- Circuit protection: A 250 V, 15 A breaker or time-delay fuse is required for the unit’s electrical circuit.
- Air circulation: 375 CFM total air flow, distributed through 8-way directional control for even enclosure coverage.
- Fan motor: The enclosed fan motor has a hermetically sealed overload for arc-free operation in classified zones.
At 230 V, current draw is 6.9 A; at 208 V, it rises to 7.5 A. The 375 CFM air circulation rate and 8-way directional control distribute conditioned air across laboratory or control-room enclosures with different layouts, while solid-state control relays switch the compressor and fan without mechanical relay arcing.
Hazardgard protection for hazardous locations
The SH15M30A carries UL Listing for Class I, Division 2, Groups A, B, C and D. Certification follows ISA 12.12.01, NFPA 70 (National Electric Code) and ANSI/UL 484. It’s T4 classification keeps surface temperatures below 135°C (275°F) during operation, supporting use where T4-rated flammable gases or vapours may be present.
The Friedrich Hazardgard room air conditioner uses a 22-gauge G60 steel cabinet with a powder-coated finish, a hermetically sealed on/off switch and gold-plated thermostat contacts. Outdoor coils receive advanced corrosion protection through Diamondblue coating. The SH15M30A also tolerates T3 high-ambient conditions up to 55°C (130°F), supporting outdoor-facing wall installations in warm industrial climates. Its slide-out chassis simplifies periodic inspection without requiring complete unit removal.
Dimensions and installation requirements
The SH15M30A cabinet measures 15 15/16 in high, 25 15/16 in wide and 27 3/8 in deep, with a net weight of 140 lb. Through-the-wall installation uses a sleeve and requires a wall opening 16 3/16 in high by 26 3/16 in wide, with a maximum wall depth of 6 in.
The unit extends 3 1/16 in into the room and 16 15/16 in outside. ATEX Online recommends checking the opening dimensions against the SH15M30A installation drawings before ordering the wall sleeve and associated hardware.
Frequently asked questions
What is the cooling capacity of the SH15M30A, and does voltage affect it?
The SH15M30A delivers 14,500 BTU/h at 230 V and 14,000 BTU/h at 208 V. The difference comes down to the voltage supplied at the installation point: the higher voltage produces slightly greater thermal output and a lower current draw, at 6.9 A versus 7.5 A. Power consumption also changes, from 1,443 watts at 208 V to 1,495 watts at 230 V. Specifiers should confirm the site supply voltage before selecting circuit protection.
Which hazardous location classifications does the SH15M30A meet?
The SH15M30A is UL Listed for Class I, Division 2, Groups A, B, C and D. It is certified to ISA 12.12.01 and NFPA 70. Its T4 temperature classification limits the maximum surface temperature to 135°C (275°F), making the unit suitable where flammable gases or vapours classified at T4 or below may be present. The Hazardgard certification targets laboratories, control rooms and storage enclosures in which volatile flammable liquids or gases are handled in closed containers. It does not cover open-area explosive atmospheres. Compliance starts with confirming that the site classification matches Division 2 requirements.
What installation dimensions are required for the SH15M30A wall sleeve?
In-wall installation of the SH15M30A requires an opening 16 3/16 in high by 26 3/16 in wide, with a maximum wall depth of 6 in. The unit extends 3 1/16 in into the room. For window mounting, the minimum opening is 16 1/2 in high by 27 7/8 in wide, with a maximum width of 42 in. The slide-out chassis provides maintenance access without removing the sleeve from the wall.