What does the TrolMaster HS-1 do?
The HS-1 allows a Hydro-X controller to operate a compatible commercial dehumidifier through its 24V external humidistat connection.
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TrolMaster HS-1 Humidistat Station - 24V Commercial Dehumidifier Controller for Hydro-X
Please sign in to see pricing
5500
£55.00
Unit price perEstimated delivery between November 01 and November 03.
The TrolMaster HS-1 Humidistat Station allows the Hydro-X environmental control system to directly control compatible commercial dehumidifiers equipped with a 24V low-voltage humidistat connection.
Many larger commercial dehumidifiers provide low-voltage terminals that allow an external humidistat to control the unit. The HS-1 connects to these terminals in the same way as a conventional external humidistat, while allowing humidity control to be managed centrally by the TrolMaster Hydro-X.
This approach avoids switching the dehumidifier's high mains current through a plug-in control module. Instead, the HS-1 uses the dehumidifier's dedicated 24V control circuit, making it particularly suitable for high-capacity commercial dehumidification equipment with substantial running and inrush current.
Separate day and night humidity targets can be configured through the Hydro-X. The HS-1 then operates the connected dehumidifier according to the required humidity setpoint.
Why choose the TrolMaster HS-1?
- Designed for commercial dehumidifiers - controls compatible units equipped with a 24V external humidistat terminal.
- Avoids high-current mains switching - uses the dehumidifier's low-voltage control circuit rather than switching its main electrical load.
- Hydro-X integration - brings commercial dehumidification directly into the TrolMaster environmental control system.
- Automatic humidity control - activates the connected dehumidifier when humidity rises above the configured setpoint.
- Separate day & night settings - allows different humidity targets to be used during light and dark periods.
- Built-in LCD display - displays the humidity setpoint and current measured relative humidity.
- Addressable device - integrates into the Hydro-X device network using TrolMaster's addressing system.
- Plug-and-play Hydro-X connection - supplied with RJ12 cables and T-Splitter for integration with the controller.
- Firmware upgradeable - built-in Micro-SD facility allows compatible firmware updates.
How the HS-1 controls a dehumidifier
A compatible commercial dehumidifier has a low-voltage control terminal designed for connection to an external humidistat. The HS-1 is wired to this control connection and effectively replaces the conventional stand-alone humidistat.
The HS-1 is then connected to the Hydro-X through the controller's device network. Humidity settings are configured through the Hydro-X rather than independently at the dehumidifier.
When the current measured relative humidity rises above the selected setpoint, the HS-1 signals the connected dehumidifier to operate. Once humidity has been reduced to the required level, the system stops calling for dehumidification.
Local LCD humidity display
The HS-1 has its own LCD display, providing useful information directly beside the dehumidifier.
TrolMaster configures the display to show the humidity setpoint in the upper section and the current relative humidity in the lower section. This allows the operating condition to be checked locally without returning to the main Hydro-X controller.
Ideal for high-capacity commercial dehumidifiers
Large dehumidifiers can draw significant current, particularly when compressors start. This can make direct mains switching unsuitable for some conventional environmental-control modules.
The HS-1 avoids that issue by using the dehumidifier's own low-voltage external control connection. The HS-1 is therefore not carrying the compressor's mains electrical load.
This is the key difference between the HS-1 and a plug-in TrolMaster DSH humidity device station. A DSH module switches mains power to a connected humidifier or dehumidifier, while the HS-1 operates the dedicated 24V humidistat terminals provided on compatible commercial dehumidifiers.
24V dehumidifier compatibility
The HS-1 is designed for commercial dehumidifiers that provide a compatible 24V external humidistat terminal.
TrolMaster publishes connection information for commercial dehumidification equipment including compatible Quest and Anden systems, but compatibility should always be confirmed against the exact dehumidifier model before wiring.
A dehumidifier that only provides a mains plug and does not have a compatible low-voltage external humidistat connection will normally require a different TrolMaster control method.
Installation & connection
The HS-1 can be wall or surface mounted near the dehumidifier using its removable mounting bracket. The dehumidifier's low-voltage control wiring is connected to the appropriate terminals on the HS-1.
The HS-1 then connects to the Hydro-X device network using the supplied RJ12 cabling. Once connected, the addressing button is used to assign the HS-1 to the controller.
Because terminal functions and wiring arrangements can vary between dehumidifier manufacturers and models, the TrolMaster wiring diagram and the dehumidifier manufacturer's instructions should be followed during installation.
The HS-1 is designed for indoor use and should be protected from water, excessive heat and condensation.
TrolMaster HS-1 product details
| Brand | TrolMaster |
|---|---|
| Model | HS-1 |
| Product type | Humidistat Station |
| Primary application | Control of compatible commercial dehumidifiers with 24V external humidistat terminals |
| Control system | TrolMaster Hydro-X |
| Dehumidifier control | Low-voltage external humidistat interface |
| Control output | 24V |
| Maximum control current | 1A |
| Humidity control | Digital relative-humidity setpoint through Hydro-X |
| Day / night control | Separate humidity setpoints supported through Hydro-X |
| Display | LCD - displays setpoint humidity & current relative humidity |
| Hydro-X connection | RJ12 device network |
| Address assignment | Yes |
| Firmware updates | Micro-SD card |
| Working temperature | 32-122°F / 0-50°C |
| Working humidity | Up to 90% RH |
| Package dimensions | 160 x 86 x 86mm |
| Installation environment | Indoor use |
What's included?
| Controller | 1 x TrolMaster HS-1 Humidistat Station |
|---|---|
| Long connection cable | 1 x 16ft RJ12 Cable |
| Short connection cable | 1 x 4ft RJ12 Cable |
| Splitter | 1 x RJ12 T-Splitter |
TrolMaster HS-1 Humidistat Station FAQs
What type of dehumidifier is the HS-1 designed for?
It is intended for larger commercial dehumidifiers equipped with a compatible 24V low-voltage terminal for an external humidistat.
Does the HS-1 switch the mains power to the dehumidifier?
No. The HS-1 uses the dehumidifier's low-voltage humidistat control circuit rather than switching the high-current mains supply to the compressor.
Why is low-voltage control useful for commercial dehumidifiers?
Large dehumidifiers can have substantial running and compressor inrush current. Using their dedicated low-voltage control connection avoids passing that mains load through an external plug-in switching module.
Can the HS-1 control humidity automatically?
Yes. When measured humidity rises above the configured setpoint, the HS-1 calls for dehumidification. The connected dehumidifier then operates to bring humidity back towards the target.
Can I use different humidity settings during the day and night?
Yes. The Hydro-X supports separate day and night humidity settings, allowing the HS-1 to control the dehumidifier against different targets during each period.
What does the HS-1 display show?
The LCD displays the selected humidity setpoint in the upper section and the current measured relative humidity in the lower section.
Will the HS-1 work with every dehumidifier?
No. The dehumidifier must provide a compatible 24V external humidistat connection. Always confirm compatibility with the exact dehumidifier model before installation.
Can the HS-1 control Quest commercial dehumidifiers?
TrolMaster provides HS-1 wiring guidance for compatible Quest dehumidifiers. The exact model and terminal arrangement should still be checked before connection.
Can the HS-1 control Anden dehumidifiers?
TrolMaster also publishes HS-1 connection guidance for compatible Anden dehumidifiers. Confirm the requirements of the specific model before installation.
What is the difference between the HS-1 and DSH-1?
The HS-1 controls compatible commercial dehumidifiers through their 24V low-voltage humidistat terminals. The DSH-1 is a mains-powered device station that switches power to compatible plug-in humidification or dehumidification equipment.
How does the HS-1 connect to Hydro-X?
The HS-1 connects to the Hydro-X device network using RJ12 cabling and is assigned an address using the button on the station.
Are the connection cables included?
Yes. The package includes a 16ft RJ12 cable, a 4ft RJ12 cable and an RJ12 T-Splitter.
Can the HS-1 firmware be updated?
Yes. The HS-1 includes Micro-SD firmware update capability. TrolMaster specifies a Micro-SD card of 32GB or less when carrying out compatible firmware updates.
Can the HS-1 be installed in a wet area?
No. The HS-1 is intended for indoor use and should be protected from water, condensation and excessive heat.
TrolMaster HS-1 Humidistat Station - 24V Commercial Dehumidifier Controller for Hydro-X
Please sign in to see pricing
5500
£55.00
Unit price perThe TrolMaster HS-1 Humidistat Station allows the Hydro-X environmental control system to directly control compatible commercial dehumidifiers equipped with a 24V low-voltage humidistat connection.
Many larger commercial dehumidifiers provide low-voltage terminals that allow an external humidistat to control the unit. The HS-1 connects to these terminals in the same way as a conventional external humidistat, while allowing humidity control to be managed centrally by the TrolMaster Hydro-X.
This approach avoids switching the dehumidifier's high mains current through a plug-in control module. Instead, the HS-1 uses the dehumidifier's dedicated 24V control circuit, making it particularly suitable for high-capacity commercial dehumidification equipment with substantial running and inrush current.
Separate day and night humidity targets can be configured through the Hydro-X. The HS-1 then operates the connected dehumidifier according to the required humidity setpoint.
Why choose the TrolMaster HS-1?
- Designed for commercial dehumidifiers - controls compatible units equipped with a 24V external humidistat terminal.
- Avoids high-current mains switching - uses the dehumidifier's low-voltage control circuit rather than switching its main electrical load.
- Hydro-X integration - brings commercial dehumidification directly into the TrolMaster environmental control system.
- Automatic humidity control - activates the connected dehumidifier when humidity rises above the configured setpoint.
- Separate day & night settings - allows different humidity targets to be used during light and dark periods.
- Built-in LCD display - displays the humidity setpoint and current measured relative humidity.
- Addressable device - integrates into the Hydro-X device network using TrolMaster's addressing system.
- Plug-and-play Hydro-X connection - supplied with RJ12 cables and T-Splitter for integration with the controller.
- Firmware upgradeable - built-in Micro-SD facility allows compatible firmware updates.
How the HS-1 controls a dehumidifier
A compatible commercial dehumidifier has a low-voltage control terminal designed for connection to an external humidistat. The HS-1 is wired to this control connection and effectively replaces the conventional stand-alone humidistat.
The HS-1 is then connected to the Hydro-X through the controller's device network. Humidity settings are configured through the Hydro-X rather than independently at the dehumidifier.
When the current measured relative humidity rises above the selected setpoint, the HS-1 signals the connected dehumidifier to operate. Once humidity has been reduced to the required level, the system stops calling for dehumidification.
Local LCD humidity display
The HS-1 has its own LCD display, providing useful information directly beside the dehumidifier.
TrolMaster configures the display to show the humidity setpoint in the upper section and the current relative humidity in the lower section. This allows the operating condition to be checked locally without returning to the main Hydro-X controller.
Ideal for high-capacity commercial dehumidifiers
Large dehumidifiers can draw significant current, particularly when compressors start. This can make direct mains switching unsuitable for some conventional environmental-control modules.
The HS-1 avoids that issue by using the dehumidifier's own low-voltage external control connection. The HS-1 is therefore not carrying the compressor's mains electrical load.
This is the key difference between the HS-1 and a plug-in TrolMaster DSH humidity device station. A DSH module switches mains power to a connected humidifier or dehumidifier, while the HS-1 operates the dedicated 24V humidistat terminals provided on compatible commercial dehumidifiers.
24V dehumidifier compatibility
The HS-1 is designed for commercial dehumidifiers that provide a compatible 24V external humidistat terminal.
TrolMaster publishes connection information for commercial dehumidification equipment including compatible Quest and Anden systems, but compatibility should always be confirmed against the exact dehumidifier model before wiring.
A dehumidifier that only provides a mains plug and does not have a compatible low-voltage external humidistat connection will normally require a different TrolMaster control method.
Installation & connection
The HS-1 can be wall or surface mounted near the dehumidifier using its removable mounting bracket. The dehumidifier's low-voltage control wiring is connected to the appropriate terminals on the HS-1.
The HS-1 then connects to the Hydro-X device network using the supplied RJ12 cabling. Once connected, the addressing button is used to assign the HS-1 to the controller.
Because terminal functions and wiring arrangements can vary between dehumidifier manufacturers and models, the TrolMaster wiring diagram and the dehumidifier manufacturer's instructions should be followed during installation.
The HS-1 is designed for indoor use and should be protected from water, excessive heat and condensation.
TrolMaster HS-1 product details
| Brand | TrolMaster |
|---|---|
| Model | HS-1 |
| Product type | Humidistat Station |
| Primary application | Control of compatible commercial dehumidifiers with 24V external humidistat terminals |
| Control system | TrolMaster Hydro-X |
| Dehumidifier control | Low-voltage external humidistat interface |
| Control output | 24V |
| Maximum control current | 1A |
| Humidity control | Digital relative-humidity setpoint through Hydro-X |
| Day / night control | Separate humidity setpoints supported through Hydro-X |
| Display | LCD - displays setpoint humidity & current relative humidity |
| Hydro-X connection | RJ12 device network |
| Address assignment | Yes |
| Firmware updates | Micro-SD card |
| Working temperature | 32-122°F / 0-50°C |
| Working humidity | Up to 90% RH |
| Package dimensions | 160 x 86 x 86mm |
| Installation environment | Indoor use |
What's included?
| Controller | 1 x TrolMaster HS-1 Humidistat Station |
|---|---|
| Long connection cable | 1 x 16ft RJ12 Cable |
| Short connection cable | 1 x 4ft RJ12 Cable |
| Splitter | 1 x RJ12 T-Splitter |
TrolMaster HS-1 Humidistat Station FAQs
What does the TrolMaster HS-1 do?
The HS-1 allows a Hydro-X controller to operate a compatible commercial dehumidifier through its 24V external humidistat connection.
What type of dehumidifier is the HS-1 designed for?
It is intended for larger commercial dehumidifiers equipped with a compatible 24V low-voltage terminal for an external humidistat.
Does the HS-1 switch the mains power to the dehumidifier?
No. The HS-1 uses the dehumidifier's low-voltage humidistat control circuit rather than switching the high-current mains supply to the compressor.
Why is low-voltage control useful for commercial dehumidifiers?
Large dehumidifiers can have substantial running and compressor inrush current. Using their dedicated low-voltage control connection avoids passing that mains load through an external plug-in switching module.
Can the HS-1 control humidity automatically?
Yes. When measured humidity rises above the configured setpoint, the HS-1 calls for dehumidification. The connected dehumidifier then operates to bring humidity back towards the target.
Can I use different humidity settings during the day and night?
Yes. The Hydro-X supports separate day and night humidity settings, allowing the HS-1 to control the dehumidifier against different targets during each period.
What does the HS-1 display show?
The LCD displays the selected humidity setpoint in the upper section and the current measured relative humidity in the lower section.
Will the HS-1 work with every dehumidifier?
No. The dehumidifier must provide a compatible 24V external humidistat connection. Always confirm compatibility with the exact dehumidifier model before installation.
Can the HS-1 control Quest commercial dehumidifiers?
TrolMaster provides HS-1 wiring guidance for compatible Quest dehumidifiers. The exact model and terminal arrangement should still be checked before connection.
Can the HS-1 control Anden dehumidifiers?
TrolMaster also publishes HS-1 connection guidance for compatible Anden dehumidifiers. Confirm the requirements of the specific model before installation.
What is the difference between the HS-1 and DSH-1?
The HS-1 controls compatible commercial dehumidifiers through their 24V low-voltage humidistat terminals. The DSH-1 is a mains-powered device station that switches power to compatible plug-in humidification or dehumidification equipment.
How does the HS-1 connect to Hydro-X?
The HS-1 connects to the Hydro-X device network using RJ12 cabling and is assigned an address using the button on the station.
Are the connection cables included?
Yes. The package includes a 16ft RJ12 cable, a 4ft RJ12 cable and an RJ12 T-Splitter.
Can the HS-1 firmware be updated?
Yes. The HS-1 includes Micro-SD firmware update capability. TrolMaster specifies a Micro-SD card of 32GB or less when carrying out compatible firmware updates.
Can the HS-1 be installed in a wet area?
No. The HS-1 is intended for indoor use and should be protected from water, condensation and excessive heat.
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