Simple Guestroom Control and Easy-to-Read Display
The HotelTech Optimax is a guestroom thermostat designed for properties that need clear guest control, dependable operation, and a clean in-room appearance.
With its large backlit display, slim wall profile, tactile buttons, and tamper-resistant construction, Optimax supports everyday guest comfort with manufacturer support and competitive pricing.
Optimax is built for hospitality spaces where thermostat controls need to be easy to understand at a glance. Guests can adjust temperature and fan settings using clear, familiar controls, while your team gets a commercial-grade thermostat designed for high-use room environments.
Optimax keeps room control easy with a large LCD display, clear fan mode visibility, and push-button temperature selection in 1°F or 1°C increments. Optimax supports:
Your personnel can access hidden programming features when settings need to be adjusted, while guests see simple controls.
Optimax is available in models that support common guestroom HVAC applications. This makes it a practical thermostat for hotels using a variety of configurations.
Supported system model types include:
Your HotelTech representative can help confirm the Optimax model that best fits your property’s specific HVAC setup.
HotelTech manufactures thermostats for rooms that see frequent guest use, regular staff access, and everyday operational demands. Optimax is designed to support consistent comfort while remaining simple for guests and practical for property teams.
Optimax is suited for:
HotelTech designs and manufactures guestroom thermostats for hospitality properties across North America.

Our Optimax thermostats are designed for guestroom environments where consistent comfort, durability, and ease of use all matter.

HotelTech manufactures thermostats directly, helping properties access commercial-grade, high-quality guestroom controls at affordable prices.

A direct relationship with the manufacturer helps simplify communication when you need answers about your thermostats.

Our products are UL/CSA certified, commercial-grade, and trusted in over one million installations across North America since 1992.
If you need a dependable hotel thermostat with a large display, simple guest controls, and commercial-grade construction, Optimax is built for hospitality use. Contact HotelTech today to request pricing for your property.
24, 120, 208/230 or 277 VAC available.
Approximately 5″h x 5″w x 3/4″d.
2″ x 4″ or 4″ x 4″ mounting box. Larger wall plates available.
Commercial-grade, high-density, high-impact, textured and fire-retardant Polycarbonate.
LCD with Backlighting. Easy to read; shows selected Set Temperature and Fan Mode. Display size is approximately 3″w x 1-1/2”h.
24V AC/DC: 1 amp Max. per stage; Not to exceed 2 amps Total Combined Load
110-120 VAC: Pilot Duty Heat or Cool, 2 amps Max; Max Fan, 4.4 FLA; 26 LRA
208-240 VAC: Pilot Duty Heat or Cool, 2 amps Max; Max Fan, 2.2 FLA; 13 LRA
265-277 VAC: Pilot Duty Heat or Cool, 2 amps Max; Max Fan, 1.8 FLA; 10.8 LRA
Certified to UL and CSA standards.
Selectable Range: 60°-90°F (16°-29°C).
Adjustable Range (“Limits”): 66°F (19°C) Cooling limit. 82°F (30°C) Heating limit.
Push button, red and blue arrows, for easy temperature selection in 1°F or 1°C increments.
Press to start up the display. The default set temperature upon start-up is 72°F (22°C). Adjustable.
Pressing the °F/°C button allows the user to change from a °F to °C display.
Press to toggle through available Fan Speed or Mode options. One-, two- or three-speed models are available. The device can automatically select the optimal fan speed for performance and energy efficiency.
User-friendly, automatic switching between heating and cooling. Heat/Cool Temperature Dead Band is 4°F (2°C). Cool-only and Heat-only models are also available.
Designed to handle typical brown-out/surge situations.
For engineering diagnostic purposes, the thermostat can interchangeably display the actual room temperature AND the set temperature and fan status by simultaneously pressing and holding the red and blue buttons for 7 seconds, then releasing.
Simple and hidden, for qualified personnel to field-customize features according to their HVAC system and to their energy conservation requirements.
Specifications subject to change.
Optimax combines a large display, tactile buttons, a slim profile, and tamper-resistant construction. It is designed for straightforward guest control and reliable performance in hospitality rooms.
Yes. Optimax uses a clear LCD display, simple red and blue temperature buttons, a fan button, and °F/°C changeover for familiar guestroom operation.
Yes. Optimax is available for PTAC applications, along with fan coil, heat pump, and split systems. Your HotelTech representative can confirm the right model for your system.
Yes. Optimax is built with tough, commercial-grade construction and a tamper-resistant design for hospitality environments where thermostats need to hold up to regular guest use.
Optimax focuses on simple guest-friendly control with a large display and tactile buttons. Optimax ST adds built-in passive infrared motion sensing for automatic setback operation.
Yes. Optimax models include available fan speed options, and the device can automatically select the optimal fan speed for performance and energy efficiency.
HotelTech works directly with hospitality teams to match the right thermostat model to your property’s HVAC system and room requirements.
Request A Quote