TrolMaster HS-1 User manual

Overview
Thank you for purchasing the TrolMaster’s HS-1 Humidistat Station. It is
specially designed to control dehumidifier with 24V terminal.
With the connection to Hydro-X by four data lines through the four ports on the
back panel, user can use HS-1 to control any dehumidifier with 24V terminal.
Choose your desired humidity setpoint for the Day / Night mode (see Humidity
Settings in Hydro-X’s instructions P19-20), the HS-1 will control the dehumidifier
based on the setpoint.
The LCD screen of HS-1 will display the setpoint humidity (upper part) and
current humidity (lower part). When the current measured humidity is higher
than the setpoint, the HS-1 unit will control the dehumidifier to decrease the
humidity to normal setpoint.
Features
Digital Control of Relative Humidity (digital set-point)
LCD Display, Easy Operation
Micro-SD for Firmware Update
Seamless Connectivity with Hydro-X
Control Dehumidifier based on Humidity Setpoint

Installation
Pull the 2 tabs outward to release the bracket from the unit, mount the bracket to
wall or surface near the dehumidifier. Peel off the outer sheath of all signal cable
of a dehumidifier to reveal the copper wire. Then, insert each bare wire into the
corresponding terminals on the back panel while pressing the button of the
terminal designation at the same time. Release the button to clamp the wire in
each terminal. Verify wire is firmly secured by gently pulling on wire. Finally,

place the unit back on the bracket and press the 2 tabs back in to lock the unit in
place.
Operation Instructions
1. Connection to Hydro-X
When the signal wires are successfully connected to the HS-1 unit, and then
connect the HS-1 to the Hydro-X with a RJ12 cable through the DEVICES
socket on the bottom of Hydro-X, so now you can see the performance of the
HS-1 unit. See below connection diagram for reference.

After power-on, the LCD screen of HS-1 will show “Please press Addressing
Key” accordingly when the HS-1 is connected correctly. Otherwise, it will show
“Offline” when the HS-1 is connected incorrectly.
2. Address Assignment
Press the Addressing button on the HS-1 unit so that the Hydro-X will assign an
address such as H1 to HS-1 unit accordingly. The LCD screen of Hydro-X will
display “Station H1 has been added”. Please note H1 is not the constant product
code, it can be H2 depending on the connection sequence of the dehumidifier
device. The first one is marked as H1, the second one as H2.

You can also check the address code on the Hydro-X as shown below :
3. FAN Setting
Press FAN button to select ON or AUTO (toggle to re-select) mode for the fan
inside an air-conditioner.
AUTO : Fan runs only when the heating or cooling system is on. Auto is the
most commonly used setting.
ON : Fan is always on.
NOTE : Options may vary depending on your heating/cooling equipment.

4. Firmware Upgrade
Press and hold “Addressing” button while replugging the RJ12 cable, the
upgrade process will be done automatically.
NOTE : Make sure the file name of firmware upgrade should be named as
“hs1_update.hex”.
5. Diagram Appendixes

6. SPECIFICATIONS
7. GENERAL INFORMATION
a ) Please use TrolMaster’s components for better performance.
b )In the case of defects of the Humidistat Station, the Humidistat Station will
either be replaced or repaired using new or reconditioned products or parts by
TrolMaster within three-year warranty from the original date of purchase. For
service, return the Humidistat Station in good packaging to our agent with the
original sale receipt.
c ) Non-professional DO NOT open the cabinet to prevent electric shock or
damage to the Humidistat Station.
WARNING : DO NOT allow the Humidistat Station to be exposed to water
or excessive heat. DO NOT open or attempt to repair or disassemble the
Humidistat Station, as there are no user-serviceable parts inside. Opening the
controller will void the warranty.
1 . If the surface of Humidistat Station is dirty, wipe it with a dry towel.
2 . The Control Board is designed for indoor use only, it should be operated
under natural ventilation conditions.
3 . For safety, it is necessary to connect the ground wire. If a short circuit did