# Symbols

These symbols are also used in the HVACV Visu Library.

## HVAC/MSR symbols <a href="#hvacmsr-symbole" id="hvacmsr-symbole"></a>

| Symbol                                                                                                                                                                                                                                 | German                                                                                                             | English                                                           |
| -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------ | ----------------------------------------------------------------- |
| <p><img src="/files/6156f13a22fa4cfe69761422b69fb9cd2f21c0ce" alt=""><img src="/files/12ee1df87c0c6d7ee4a1f14fca6dac53ea87c8e6" alt="" data-size="original"><br><img src="/files/f5fdf914322a95acaee1dcc240927e182965f59f" alt=""></p> | Fan (off/fault/on) e.g. ventilation system                                                                         | fan (off/error/on) e.g. air handling unit                         |
| ![](/files/483546ad218b658904021326f43d8173add126e4)![](/files/5240de71ab734f341ed6c372877108cf80371777)![](/files/3cce21e0dad878a9af0d33faeebbb43bf02ae67c)                                                                           | Pump (off/fault/on)                                                                                                | pump (off/error/on)                                               |
| ![](/files/d191de5972ca6f74522ab6ec727a56039faa900f)                                                                                                                                                                                   | 2-way valve with actuator, shut-off damper, passage valve                                                          | 2-way valve with motor                                            |
| ![](/files/532194b8acc0f75d04763ede59db3537e652f08c)                                                                                                                                                                                   | 3-way valve/mixer with actuator                                                                                    | 3-way valve with motor                                            |
| ![](/files/1074a6c8cd867f0b87fca2e4c81df0d0e49c3a33)![](/files/4a83ff24419bf8849a00a6850b95e9442ef933ae)                                                                                                                               | Filter (clean/dirty) e.g. in ventilation systems                                                                   | air filter (normal/pollution) e.g. in air handling untis          |
| ![](/files/a1622322b69f0bdefc59b32db1b321c3169ac32e)![](/files/ad932c0be10b5d83f60b34e56da62e33e913fccb)                                                                                                                               | Fire damper (normally open/closed) with motor                                                                      | fire dampter (normal open/closed) with motor                      |
| ![](/files/96a537e2a100f064c4c6ced2eda554c65e93bcd8)![](/files/ee0fb99b7b2c271580b89f7c9f6e880210c8b5be)                                                                                                                               | Fire damper (normally open/closed)                                                                                 | fire dampter (normal open/closed)                                 |
| ![](/files/47e697af25aa35a0848f58936bee8f69207c5fa7)                                                                                                                                                                                   | Air damper with motor                                                                                              | air damper with motor                                             |
| ![](/files/84be2b884de9125e3c4c10e8a5bb66c7518a1152)                                                                                                                                                                                   | Volumetric flow controller (VVR/VVS)                                                                               | variable air volume box (VAV)                                     |
| ![](/files/23f2d34161f38aa890abea34d98943a27f14a09b)                                                                                                                                                                                   | Storage/buffer for heating or cooling                                                                              | tank for cooling or heating                                       |
| ![](/files/f0f5eb7ba4489ab3b2e84bc4508a9a4a37c5cca8)![](/files/68e6657c4f7d3ed51e247746af7afa73d5bb78e9)                                                                                                                               | Rotary heat exchanger with motor in ventilation systems (two representations)                                      | rotary heat exchanger in air handling untis (two representations) |
| ![](/files/109a5415b362402b00da3add0386b2a9303ac224)                                                                                                                                                                                   | Crossflow exchanger (in heating or ventilation technology)                                                         | cross flow exchanger (in heating or air handling systems)         |
| ![](/files/14101718bea136cb3ed87bccdf7aa44e0b2ecf15)                                                                                                                                                                                   | Heating coil/heater in ventilation systems. Water or direct expansion heat pump.                                   | heater in air handling units                                      |
| ![](/files/0a331b4564d63c560d54287615ca0776ed2ea378)                                                                                                                                                                                   | Electric heating coil/heater in ventilation systems                                                                | electrical heater in air handling units                           |
| ![](/files/8e2f022658e8cfe300fdae3501978b850bfe84e4)                                                                                                                                                                                   | Cooling coil/cooler in ventilation systems. Water or direct expansion heat pump.                                   | cooler in air handling units                                      |
| ![](/files/71775f23f4527ef4dd92dfb9986ab5c63613b62d)                                                                                                                                                                                   | Combined heating-cooling coil switchable on water side or direct expansion heat pump with heating/cooling function | combination cooler/heater or heat pump                            |
| ![](/files/bb0e4ad931c5362105dd38f7d9a672faeeb948e1)                                                                                                                                                                                   | Steam humidifier or spray humidifier in ventilation systems                                                        | vapor humidifier in air handling units                            |


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