Trinnity HD: water-air heater for halls, workshops and warehouses, supplied with heating water from a boiler, heat pump or district heating; the fan distributes the air heated at the heat exchanger throughout the room. On this page, you can choose between 4 sizes (HD25, HD40, HD50, HD70) with heating capacities of 24.5 to 70.0 kW according to the page^* and accessories as required (with swivel bracket and 3-speed controller with CTS thermostat, with swivel bracket and programmable CHMI control, complete set). Connected to 230 V, AC motor according to the page; three fan speeds (AC fan).

Performance and range of application

Heating capacity according to the page: HD25 24.5 kW; HD40 37.8 kW; HD50 48.5 kW; HD70 70.0 kW. Nominal values according to the page without specification of the water and air temperatures; the technical data is provided on the page exclusively as an image. For a water-air heater, the heating water determines the performance: a high flow temperature from the boiler achieves the upper end of the range, while low temperature from a heat pump achieves the lower end. We determine the number and size of the units upon request based on the heating load and water temperature of your hall. Range of application: according to the page, medium and large rooms: industrial halls, workshops, warehouses, pavilions, sports halls, churches; heating water from the boiler.

* The heating capacity of a water-air heater depends on the flow and return temperatures of the heating water, the air inlet temperature and the fan speed; the range stated on the page covers these operating points. The decisive factors for the number and size of the units are the calculated heating load of the hall, not the floor area. The binding design is carried out on an object-specific basis. For the design of your property, please contact us.

The most important advantages at a glance

• 4 sizes from 24.5 to 70.0 kW according to the page (HD25, HD40, HD50, HD70), one page for the entire range.
• Heating water from the existing system: boiler, heat pump or district heating, 3/4 inch connection.
• Three fan speeds (AC fan).
• Accessories as an option: CTS, swivel bracket; complete set with hoses and valve with actuator.
• Housing: EPP; adjustable air guide louvres according to the page.

Detailed functions

Heat exchanger and heating water

Heat exchanger: information about the heat exchanger is provided on the page exclusively as an image; available upon request. 3/4 inch connection (according to the page for hoses and valve of the complete set). The page does not state the maximum water temperature and maximum operating pressure; available upon request. For operation with a heat pump at a low flow temperature, we check the achievable performance upon request.

Fan and air distribution

Three fan speeds (AC fan). The page does not state the air volume, sound pressure level and throw distance in the text; they are provided there exclusively as an image; we provide the values upon request. The air guide louvres are adjustable according to the page.

Control and accessories

CTS: 3-speed rotary controller with thermostat, operating modes heating, ventilation or thermostat operation (at the setpoint temperature, the valve closes and the fan stops; in continuous operation, the fan continues to run). CHMI: programmable control with built-in thermostat, weekly program with 6 time zones, frost protection when switched off, connection to building management systems possible, temperature sensor built-in or as a wall sensor CNTC, plastic housing.

Installation

Swivel bracket in every set; according to the page, installation on walls in any orientation (horizontal, vertical, angled), the recommended distances to walls must be observed. Installation, hydraulic connection, venting and electrical connection are carried out by a specialist company.

Scope of delivery

Depending on the selected option according to the page:

• with swivel bracket: air heater and swivel bracket
• with swivel bracket and 3-speed controller with CTS thermostat: air heater, swivel bracket, CTS controller
• with swivel bracket and programmable CHMI control: air heater, swivel bracket, CHMI control
• complete set: air heater, swivel bracket, CTS controller, 2 hoses HC 3/4 inch, 1 valve 3/4 inch with actuator

What you need additionally

• Heating water supply with flow and return (boiler, heat pump or district heating), piping to the unit, shut-off valves and hoses, unless included in the complete set
• 230 V electrical supply line, AC motor according to the page with fuse, control cable to the controller
• Installation, hydraulic and electrical connection as well as commissioning by a specialist company

Technical data

Model	HD25	HD40	HD50	HD70
Heating capacity according to the page	24.5 kW	37.8 kW	48.5 kW	70.0 kW
Air volume	not stated on the page	not stated on the page	not stated on the page	not stated on the page
Sound pressure level	not stated on the page	not stated on the page	not stated on the page	not stated on the page
Power consumption	not stated on the page	not stated on the page	not stated on the page	not stated on the page
Throw distance	not stated on the page	not stated on the page	not stated on the page	not stated on the page
Heating water connection	3/4 inch (according to the page for hoses and valve of the complete set)	3/4 inch (according to the page for hoses and valve of the complete set)	3/4 inch (according to the page for hoses and valve of the complete set)	3/4 inch (according to the page for hoses and valve of the complete set)
Max. medium temperature / operating pressure	not stated on the page	not stated on the page	not stated on the page	not stated on the page
Power supply	230 V, AC motor according to the page	230 V, AC motor according to the page	230 V, AC motor according to the page	230 V, AC motor according to the page
Weight	not stated on the page	not stated on the page	not stated on the page	not stated on the page
Dimensions	not stated on the page	not stated on the page	not stated on the page	not stated on the page
Housing	EPP according to the page	EPP according to the page	EPP according to the page	EPP according to the page
Manufacturer according to the page	not mentioned on the page	not mentioned on the page	not mentioned on the page	not mentioned on the page

Frequently Asked Questions

Which size of the Trinnity HD is suitable for my hall?

The decisive factors are the heating load and water temperature, not the square meters: The page states 24.5 kW to 70.0 kW for the 4 sizes, but this is only achieved with correspondingly warm heating water. For large halls, several units distribute the heat better than a single one. We determine the units upon request.

What water temperature does the air heater need?

The limits for water temperature and pressure are not stated on the page; available upon request. The warmer the water, the more performance: boiler temperatures achieve the upper end of the range, heat pump temperatures the lower. We calculate what value is achieved at your flow upon request.

What is included in the individual options?

According to the page: with swivel bracket: air heater and swivel bracket; with swivel bracket and 3-speed controller with CTS thermostat: air heater, swivel bracket, CTS controller; with swivel bracket and programmable CHMI control: air heater, swivel bracket, CHMI control; complete set: air heater, swivel bracket, CTS controller, 2 hoses HC 3/4 inch, 1 valve 3/4 inch with actuator. Piping, shut-off valves outside the complete set, electrical supply line and installation material are not included.

How is the air heater controlled?

Via the accessories on this page: CTS: 3-speed rotary controller with thermostat, operating modes heating, ventilation or thermostat operation (at the setpoint temperature, the valve closes and the fan stops; in continuous operation, the fan continues to run). CHMI: programmable control with built-in thermostat, weekly program with 6 time zones, frost protection when switched off, connection to building management systems possible, temperature sensor built-in or as a wall sensor CNTC, plastic housing. Without control, the fan is switched externally, automatic temperature maintenance is then not possible.

How loud is the unit and how far does the airflow reach?

The sound pressure level and throw distance are not stated in the text on the page (the data is provided there exclusively as an image); we provide the values for each fan speed upon request.

Can I connect the air heater to a heat pump?

Yes, to any heating water source with flow and return, so also to a heat pump. At a low flow temperature, the performance drops significantly; we calculate upon request whether the size and number of units then still fit the heating load.

Where is the unit mounted?

Swivel bracket in every set; according to the page, installation on walls in any orientation (horizontal, vertical, angled), the recommended distances to walls must be observed. The airflow should point towards the living area, without blowing directly on people; the throw distance helps in choosing the installation location.

Can I install and connect the air heater myself?

No. Installation, hydraulic connection with venting, electrical connection and commissioning are carried out by a specialist company; this also applies to the connection of the controller and a valve with an actuator.