SALUS ST898ZB Optima S Thermostat

Product Information

OPTIMA S Thermostat
The OPTIMA S Thermostat is a device that helps regulate the temperature of your heating, ventilation, and air conditioning (HVAC) system. It comes with a mounting plate, wall plate spacers, wood screws, wall anchors, locking pins, wire labels, and two AA alkaline batteries. The thermostat is designed to be installed on a wall and connected to your HVAC system’s wiring.

Product Usage Instructions

Step 1: Turn off the power to the HVAC system
Before starting the installation process, turn off the power to your HVAC system.

Step 2: Determine the wiring configuration
Use the wire labels and the table provided in the user manual to keep track of wire colors on the old thermostat or on the heat pump/furnace/air conditioner. For new installations, refer to Appendix A and the Install Mounting Plate sections of the Optima S User Manual.

Step 3: Remove the old thermostat
Remove the old thermostat from the wall, taking care not to allow the wiring to fall inside the wall. Wrap the wire ends around a long stick (such as a pencil) to keep the wires from falling into the wall.

Step 4: Install the mounting plate
If there is space on the wall that needs to be covered, insert the Wall Plate between the Mounting Plate and the wall, and mount both plates using the same screws. Make sure the wires run through the center opening.

Step 5: Attach wiring
Attach the wiring to the thermostat according to the wiring configuration determined in Step 2.

Step 6: Connect batteries
Connect the two AA alkaline batteries to the thermostat.

Step 7: Attach the thermostat to the mounting plate
Align the connector pins and the plastic retention posts, then push the thermostat onto the Mounting Plate. Make sure the connector pins are not bent and that the thermostat is fully seated on the Mounting Plate.

Step 8: Turn the power back on to the HVAC system
After completing the installation, turn the power back on to your HVAC system.

Step 9: Initial Configuration
After the initial power-up, the thermostat will attempt to pair with a network for 10 minutes. You may need to initiate scanning for devices in your connected home system. Once paired, canceled with the Down button ( X ), or timed out, the device will ask for the following initial settings:

• EQPT TYPE
• REVERSE VALVE
• FAN CONTROL
• AUX FUNCTION
• ACTIVE TEMP SELINT TEMP OFFST RMT TEMP OFFST DLTA 1ST STAGE DLTA 2ND STAGE DLTA 1ST STAGE DLTA 2ND STAGE

IN THE BOX

IN THE BOX YOU WILL FIND THE FOLLOWING:

YOU WILL NEED THE FOLLOWING TOOLS

• 1 Phillips or flathead screwdriver

• Drill with 3/16” bit (only if you cannot mount the thermostat using the existing holes)

Optional Tools

• Smartphone or digital camera to take picture of wiring for later reference
• Screwdriver to disconnect wires from old thermostat
• Pencil

TURN OFF POWER TO THE HVAC SYSTEM

DETERMINE WIRING CONFIGURATION

Use the Wire Labels and the following table to keep track of wire colors on the old thermostat or on the heat pump/furnace/air conditioner.

For new installations, refer to Appendix A and the “Install Mounting Plate” sections of the Optima S User Manual.

REMOVE OLD THERMOSTAT

Remove the old thermostat from the wall, taking care not to allow the wiring to fall inside the wall.

TIP:
Wrap the wire ends around a long stick (such as a pencil) to keep the wires from falling into the wall.

INSTALL MOUNTING PLATE

• If there is space on the wall that needs to be covered, insert the Wall Plate between the Mounting Plate and the wall, and mount both plates using the same screws.
• Make sure the wires run through the center opening.

ATTACH WIRING

• Using the labels, match the wires to the appropriate terminal.
• For each wire, press the terminal button and fully insert the wire into the side hole.
• Release the terminal button to secure the wire.
• If you have RC and RH wires, remove the jumper betweeen RC and RJP.
• ST898ZBR works as a router and requires RH/RC and C-wire.

CONNECT THE BATTERIES

Pull the battery tab from the back of the thermostat to activate the batteries.

• If the C wire is connected, the thermostat will draw power from the AC connection and use the batteries as backup.
• Battery-only operation typically lasts 18 months.
• ST898ZBR works as a router and cannot run on batteries.

ATTACH THERMOSTAT TO MOUNTING PLATE

After the initial configuration, the home screen will be displayed, and the thermostat is ready to be attached to the Mounting Plate. Align the connector pins and the plastic retention posts, then push the thermostat onto the Mounting Plate. Make sure the connector pins are not bent and that the thermostat is fully seated on the Mounting Plate.

TURN POWER BACK ON TO THE HVAC SYSTEM

INITIAL CONFIGURATION

After initial power-up, the thermostat will attempt to pair with a network for 10 minutes. You may need to initiate scanning for devices in your connected home system. Once paired, canceled with the Down button ( X ), or timed out, the device will ask for the following initial settings.

To move forward and back through the Settings menu and make any changes to the settings, the buttons function as follows:

After 30 seconds of no user input, changes will be saved, and the device will return to the Home screen.

Configuration Parameters
See the “Configuring the Thermostat” section in the Optima S User Manual for more details.

OPTIONAL STEP CONFIGURE THE NEW THERMOSTAT

Settings that can be changed include:

Note: These settings will not appear if you are connected to the Internet.

SMC-QG-ST898ZB-EN-202208v1
Copyright © SALUS North America, Inc. 2022

SALUS North America, Inc.
2215 Cornell Avenue Montgomery, IL 60538
www.salusinc.com.

References

• Salus Inc Online Catalog

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