Networkable Touch-Screen Control for Guestroom Performance
The HotelTech Ultramax is a networkable hotel thermostat designed for hospitality applications where guest comfort, operational consistency, and centralized control need to work together.
Ultramax delivers touch-screen control with network-ready capability, helping you maintain consistent room settings across your property while simplifying management for engineering and operations teams.
Ultramax is built specifically for hospitality applications. It combines a clean touch-screen interface with centralized configuration capabilities to help your property maintain a consistent room experience.
Controls are designed to be simple for guests while giving your team the ability to standardize performance across rooms.
Guestroom controls should be easy to understand without explanation. Ultramax provides a straightforward touch-screen interface that reduces confusion and helps limit service calls.
This allows your team to maintain control without adding complexity to daily operations.
Ultramax is available in configurations that match common hospitality HVAC systems, including PTACs.
Supported system model types include:
Your HotelTech representative can help confirm the right Ultramax model for your property.
Ultramax is designed for hospitality teams that need consistent control across multiple rooms or properties.
HotelTech designs and manufactures guestroom thermostats, providing simple and reliable support to hospitality clients across North America.

HotelTech thermostats are built specifically for guestroom environments where comfort, consistency, and ease of use are essential.

Each Ultramax unit can be configured to match your HVAC system and operational requirements, supporting consistent performance across guestrooms.

You work directly with the manufacturer for product selection, configuration, and support, helping reduce delays and simplify communication.

HotelTech thermostats are UL and CSA certified, commercial-grade, and trusted in over one million installations since 1992.Ultramax thermostats are FCC certified.
If you’re looking for a networkable thermostat that supports consistent guestroom control while simplifying operations, Ultramax is built for hospitality environments. Contact HotelTech today to request a quote.
18-30 V AC/DC.
Approximately 5″h x 3.25″w x 1″d.
Single gang vertical junction boxes, or dual gang box with extra mounting plate. System wires connect to the screw terminal mounted on the thermostat bracket.
High density, textured UL flame retardant Poly Carbonate. Available in Black and White.
4.3″ LCD TFT Display 480×272 with Resistive Touch Panel, RGB.
Selectable Range: 60°-90°F (15°-32°C).
Touch button, red arrow up and blue arrow down, for easy temperature selection in 1°F or .5°C increments.
Default Hidden Cooling Limit: 66°F (18°C). Adjustable.
Default Hidden Heating Limit: 82°F (29°C). Adjustable.
4°F Deadband between heat and cool. Pilot Duty Circuits: One compressor circuit, one back-up electric heat circuit. Reversing Valve: Installation selectable Energize on Heat (B terminal) or Energize on Cool (O terminal) circuit.
Touch to cycle ON/OFF. Default set temperature upon start-up is 72°F (22°C). Adjustable.
Touching °F/°C allows the user to switch between °F and °C display. Default unit is °F (Adjustable).
Touch FAN to access the fan speed selection menu where the user selects the desired FAN speed and touches OK to save. AUTO FAN automatically selects optimal speed (high, low or off). Manual fan speed depends on system configuration.
Automatically switches between heating and cooling when Auto Changeover mode is selected. Heat Only, Cool Only, and Manual Changeover modes are also configurable.
This device has been designed to handle normal brown-out or surge situations.
For qualified maintenance personnel, Field Test Mode is available to troubleshoot the HVAC system.
For qualified engineers to customize features according to HVAC system and energy conservation requirements. Refer to separate programming documentation.
Mesh Network Capability with WIFI Gateway and accessible through HotelTech EMS Web Portal.
1) Optional Humidity Sensing.
2) Available both with and without PIR.
3) Standard Version without Network option.
Specifications subject to change.
Cost depends on HVAC type, voltage, configuration, and the number of rooms in your project.
HotelTech reviews your system and recommends the correct Ultramax configuration based on your setup.
Yes. Networkable configuration supports consistent settings across guestrooms.
Setback adjusts temperature when rooms are unoccupied and returns to comfortable settings when guests are present.
Ultramax models are certified to FCC standards.
Ultramax focuses on networkable touch-screen control, while Optimax ST provides built-in motion sensing for standalone setback operation.
HotelTech works directly with hospitality teams to match the right model, support your setup, and deliver a thermostat built for guestroom performance.
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