ZTS-500US Z-Wave Smart Thermostat 1
ZTS-500US, Z-Wave Smart Thermostat Introduction The ZTS-500US (Figure 1) is a Z-Wave enabled thermostat designed to control the majority of HVAC systems. Users can use local or remote control and monitor the temperature via an App on smart phone or PC while at home or away through a Z-Wave gateway. It can maximize energy conservation and comfort while minimizing the effort required to maintaining a desired temperature in your home. Figure 1.
Features List HVAC System Compatible: Standard (Gas/Electric) or Heat Pump HVAC systems Multi-stage System Compatible: Standard HVAC Systems: 2 stages heating, 2 stages cooling, 2 stages fan Heat Pump Systems: 2 stages heating, 2 stages cooling, 2 stages fan Heat Pump change over valve: Selectable change over with heat or cool (B or O output) Fan system: Selectable for gas or electric heat systems Temperature Display, Indication and Control: Temperature unit in °F or °C
Physical Installation and Wiring Cautions! We highly recommend that this installation procedure is performed by a trained HVAC technician. Read the enclosed instructions carefully before installing your new ZTS-500US. Pay close attention to all warnings and notes and carefully follow the installation steps in the order they are presented to save time and minimize the risk of damaging the thermostat or the system it controls.
sections are locked together (Figure 5). Figure 2. Open ZTS-500US front housing Figure 3.
RC/RH jumper W1 W2 O B G1 G2 Y1 Y2 C RC RH Figure 4. Terminal wiring Figure 5.
Thermostat Terminal Wiring RC/RH jumper Figure 6. Terminal block and pin assignment Terminals 1st stage Heater 2nd stage Heater Cool changeover (heat pump) Heat changeover (heat pump) 1st stage Fan 2nd stage Fan 1st stage Compressor 2nd stage Compressor 24Vac Common 24Vac Power for Cooling 24Vac Power for Heating Symbol W1 or W W2 O B G1 or G G2 Y1 or Y Y2 C RC RH RC/RH jumper: Most HVAC systems build-in a common heating and cooling transformer.
Non-Heat Pump (standard) HVAC System Important: If there is no C-wire in the HVAC system, the ZTS-500US must be powered by batteries and it will be operated in FLiRS mode after inclusion into a Z-Wave network.
ZTS-500US (Powered by batteries) Typical wire colour Non-Heat Pump (standard) HVAC System White W1 W2 O B G1 G2 Y1 Y2 C RC and RH are RC internal short! RH W - Heater No C-wire Red R - 24Vac Power 2-wires system with 1 heat only Figure 9. Non-heat pump (Standard Gas or Electric) 2-wires HVAC system wiring Heat Pump HVAC System Important: If there is no C-wire in the HVAC system, the ZTS-500US must be powered by batteries and it will be operated in FLiRS mode after inclusion into a Z-Wave network.
Typical wire colour Heat Pump HVAC System ZTS-500U W1 W2 O B G1 G2 Y1 Y2 C RC and RH are RC internal short! RH Orange Blue Green O - Cool changeover (heat pump) B - Heat changeover (heat pump) G - Fan Yellow Y - Compressor (Heat/Cool) Black (with C-Wire) C - 24Vac Common Red R - 24Vac Power Do not split RC/RH for Heat Pump systems! Single-stage: 1 Heat / 1 Cool Figure 11.
Setup and Operations Product Overview Mode Heat Cool Fan Brightness Z-Wave Disconnect Battery Low Current Temperature Terminals Figure 13.
User Interface Layout Operation menu: System setup menu: 12
Initial HVAC System Setting The ZTS-500US supports various different HVAC system types: - Pump systems: Non-Heat Pump or Heat Pump - Heat Fan systems: Gas-Powered or Electric-Powered - Fan stage systems: One or two stages fan To prevent abnormal operation, it is important that the ZTS-500US is set to the correct HVAC system type prior to use and Z-Wave inclusion.
For Fan Systems: Press > to navigate to the fan system (Fan) screen. Press + or – to entry the setting. Press + or - to select your fan system type, either gas-powered (Gas) or electric-powered (Ele). Press and keep holding > for 2 seconds to 3 confirm your selection. Press < to cancel the setting and back to the previous screen. Gas-powered : (pre-selected system) - Fan will maintain off state. Electric-powered: - Fan will be turned on when there is heating.
Note: If the user performs a Reset to Factory Default Settings or Z-Wave Exclusion operation, the ZTS-500US will retain the last selected HVAC system type. Thermostat Mode and Set point For normal setup and operations, ZTS-500US will take the action after key released and it will go back to standby menu after 3 seconds. Step Procedure / Description LED indication From the Standby screen, press > to navigate to the Mode screen and the Mode LED will keep flashing.
Explanations of Set point, Swing, Differential and Dead band HEAT mode: Thermostat controls the temperature according to the following diagram Example: If Heat Set point = 70°F, Swing = 1°F, Differential = 2°F, then => 1st stage heater turns on when room temp is 69°F and off at 71°F. => 2nd stage heater turns on when room temp is 67°F and off at 70°F.
Example: If Room temperature = 75°F, Dead band = 4°F, Swing = 1°F, Differential = 1°F Heat Set point = 73°F, Cool Set point = 77°F Then it will change the heat set point by +/- buttons. If keep 73°F in heat set point, then the minimum of cool set point will be limited to 77°F, => 1st stage heater turns on when room temp is 72°F and off at 74°F. => 2nd stage heater turns on when room temp is 71°F and off at 73°F.
LEDs Brightness Step Procedure / Description LED indication To adjust the brightness: From the Standby screen, press > or < to navigate to the Brightness screen and the Brightness LED will keep flashing. Press + or - to adjust the brightness level 1 (High/Med/Low). Note: It can extend the battery service life by decreasing the brightness of the LEDs display. System Settings: - To enter the System Main menu, press and keep holding > or < for 3 seconds to navigate to the System Main (SYS) screen.
Temperature Display Unit (oF/oC) Step Procedure / Description LED indication In the System Main (SYS) screen: Press > to navigate to the display unit (F/C) 1 screen. Press + or – to entry the setting. Press + or - to select temperature display unit (°F / °C). Press > to confirm your selection. Default is Fahrenheit (°F) 2 Sleep Timer Step Procedure / Description LED indication In the System Main (SYS) screen: Press > to navigate to the LED sleep timer (LED) 1 screen.
Check Firmware Version Step Procedure / Description LED indication In the System Main (SYS) screen: Press > to navigate to the Firmware (FM) screen. 1 Press + or – to entry the setting. Press + or - to check the firmware version. Press > or < to back to the previous screen. Z.222 = Z-Wave firmware version 2.22 U.222 = Main MCU firmware version 2.22 2 Battery Low Indication Step Procedure / Description LED indication “Battery low” icon will be displayed if the battery is running out.
Defrost Function Step Procedure / Description LED indication “Defr” message and heat icon will be displayed if room temperature is below 41°F / 5°C. 1 All heaters will be forced On, except in cool mode. Out of Temperature Range Control Function Step Procedure / Description LED indication “Cold” message and heat icon will be displayed if room temperature is below 32°F / 0°C. 1 All heaters will be forced On, except in cool mode.
Glossary Devices and nodes are all terms to describe an individual Z-Wave Device or Node device. These are all interchangeable when setting up your Z-Wave network. Inclusion Add a Z-Wave device to the network. Exclusion Remove a Z-Wave device from the network. Remove To take a device out of a group, scene, or association group while that device still exists in the same Z-Wave network.
Z-Wave Setup and Operations You may check Glossary for the definition of FLiRS mode and Always Listening Mode before select the Z-Wave operation mode. Select FLiRS or Always Listening Mode ZTS-500US can be powered by 4 x AA batteries, and/or 24Vac C wire. Before inclusion procedure, user needs to check the operation mode or the power source of ZTS-500US. - FLiRS mode (Batt) is targeted for battery operated applications and will enter sleep mode frequently in order to save battery life.
Check FLiRS / Always Listening Mode Step Procedure / Description LED indication In the System Main (SYS) screen: Press > to navigate to the Operation Mode (Mod) 1 screen. Press + or – to entry the setting. If the screen displayed “Batt”, then the ZTS- 500US will operate in FLiRS mode after inclusion into a Z-Wave network. 2 If the screen displayed “24V”, then the ZTS- 500US will operate in Always Listening mode after inclusion into a Z-Wave network. Press > or < to back to the previous screen.
- The “✔” symbol will be displayed on screen once the ZTS-500US is added into the network. The Z-Wave disconnect icon will also be removed from the standby screen. 3 - The “x” symbol will be displayed on screen if there is no action (time out) or unable to include the ZTS-500US into the network. Notes: 1. It is recommended to perform the Remove/Exclude procedure before performing an Add/Include procedure.
- The “✔” symbol will be displayed on screen once the ZTS-500US is excluded from the network. The Z-Wave disconnect icon will also be 4 displayed in the standby screen. - The “x” symbol will be displayed on screen if there is no action (time out) or unable to exclude the ZTS-500US from the network. Note: All Z-Wave configuration parameter values will keep no changes after excluding the unit from the network, except for the association groups information.
f) Cool set point (report in precision of 0.5oC or 1oF) g) Current room temperature (report in precision of 0.5 C or 1 F) o o (It will trigger room temperature report if there is 2oF / 1oC [default] differ from last report. You can change this setting by set the configuration parameter) Notes: Total 5 devices (nodes) can be assigned in total 3 association groups. Below table lists out the devices (nodes) allocations in the 3 association groups. No. of Node ID in No. of Node ID in No.
Z-Wave Configuration Parameters Different users have different preferred settings of their thermostat, you may use the below configuration parameters to change settings of corresponding functionality. The size of Parameter number is 1 byte; Parameter value can be 1, 2, or 4 bytes. Functions Parameter Number Parameter value range Scale of temperature 1 (0x01) o 0 (0x00) = C o 1 (0x01) = F (default) Swing 2 (0x02) o o o o o o o o o o o o o o o o 1 (0x01) = 1 F / 0.
o Example 68 F; input = 680 (0x02A8) in motel service, advance user Unit in C: o o Range from (5 C + dead band) to 37 C o Default = 7 C o Example 20 C; input = 200 (0x00C8) or administrator can limit the lower cool set point) Reset filter counter 7 (0x07) 0 (0x00) (default) Set filter counter 8 (0x08) 500 (0x01F4) to 4000 (0x0FA0) hours 500 (0x01F4) hours (default) Resolution = 1 (0x0001) hours Report filter counter 9 (0x09) 0 (0x0000) to 9999 (0x270F) hours 10 (0x0A) Temperature offset value.
2 (0x02) = Level-2 (middle) , default 3 (0x03) = Level-3 (bright) Sleep timer 12 (0x0C) 3 (0x03) to 60 (0x3C) seconds, 255 (0xFF) = Always On Step size = 1s, Batt = 5s, default 24Vac = 60s, default Repeat basic set counter 13 (0x0D) Value(X) (Association Group A and B 0 (0x00), 3 (0x03) to 255 (0xFF) only) 0 (0X00) = Disable, default 3 (0x03) to 255 (0xFF) minutes (Thermostat sends “Basic Set” command to its association node repeatedly in every X minutes) Trigger AUTO report if room 14 (0x0E) 0
9 (0x09) = 4.5 hrs 10 (0x0A) = 5.0 hrs 11 (0x0B) = 5.5 hrs 12 (0x0C) = 6.0 hrs 13 (0x0D) = 6.5 hrs 14 (0x0E) = 7.0 hrs 15 (0x0F) = 7.5 hrs 16 (0x10) = 8.0 hrs Sensor temperature calibration example: If sensor reading value = 77oF, offset value = -2OF Display temperature = sensor reading value + offset value = 77-2oF = 75oF If using decimal input: Parameter no. = 10; Parameter value = -2 If using hexadecimal input: Parameter no.
Frequently Asked Questions Q Why won’t my ZTS-500US work with the Z-Wave devices purchased in another country? A Due to differing regulations in different countries, Z-Wave products from different regions are set to different frequencies. Before purchasing new devices, be sure to check if the devices are compatible in your region. Q Do I need an electrician to install a ZTS-500US in my home? A It is strongly recommended that a qualified technician install this product.
Storage: 23 – 140 °F / -5 – 60 °C Dimension (L x H x T) Weight 160mm x 100mm x 28mm 190g (Batteries excluded) Checking Accessories After opening the cover of the packing box, check that the following accessories are included. ZTS-500US Screw + Wall Anchor x 2pcs AA batteries x 4pcs (optional) User Manual Warranty sheet Wireless Information This device has an open-air line-of-sight transmission distance of 132 feet (40m) which complies with the Z-Wave standards.
may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: - Reorient or relocate the receiving antenna. - Increase the separation between the equipment and receiver.
