Hexa Controls STN855W WiFi Digital Programmable Thermostat Installation Manual

Hexa Controls STN855W WiFi Digital Programmable Thermostat

Introduction

The WiFi digital programmable thermostat allows you to control the temperature anytime and anywhere. It features a large backlight display and LCD Touch Screen for ease of programming. Compatible with any Smartphone-iOS and Android

Power Type

• A trained, experienced technician must install this product.
• Carefully read these instructions. You could damage this product or cause a hazardous condition if you fail to follow these instructions.

Specifications

• The display range of temperature …………….. 32°F to 99°F co·c to 40°C)
• The control range of temperature ………………. 41 °F to 90°F (5°C to 32°C)
• Load rating …………………………………………………….. 1 amp per terminal, 1.5 amp maximum all terminals combined
• Swing (cycle rate or differential) ……………….. Heating is adjustable from 0.2· to 2.0°
• Cooling is adjustable from 0.2· to 2.0·
• Power source ………………………………………………… 18 to 30 VAC, NEC Class II, 50/60 Hz for hardwire
• Operating ambient …………………………………….. 32°F to + 105°F (0°C to +41 °C)
• Operating humidity …………………………………… 90% non-condensing maximum
• Dimensions of thermostat ………………………… 4.7″W x 4.4″H x 1 “D

Installation

Subbase Installation

• Horizontal Mount
• Vertical Mount

For vertical mount put one screw on the top and one screw on the bottom. For horizontal mount put one screw on the left and one screw on the right.

Installation Tip: Electrical Hazard
Failure to disconnect the power before beginning to install this product can cause electrical shock or equipment damage.

Mercury Notice
All of our products are mercury free. However, if the product you are replacing contains mercury, dispose of it properly. Your local waste management authority can give you instructions on recycling and proper disposal.

Mount Thermostat
Align the 4 tabs on the subbase with corresponding slots on the back of the thermostat, then push gently until the thermostat snaps in place.

Getting to know your thermostat

• Fan Buttons
• Next step Buttons
• Set time Buttons
• Program Buttons
• Menu Buttons
• System Buttons
• Setpoint Buttons

1. Days of the week and time
2. Indicates the current room temperature
3. Displays the user-selectable setpoint temperature
4. Hold is displayed when the thermostat program is permanently overridden.
5. System Operation Indicators: The compressor delay is active if these are flashing.
6. Programmable TI me Periods: Residential uses 4 time periods – WAKE, RETURN, LEAVE and SLEEP.
7. Program Menu Options: Shows different options during programming.

Wiring

• lf you are replacing a thermostat, make note of the terminal connections on the thermostat that is being J replaced. In some cases, the wiring connections will not be color coded. For example, the green wire may not be connected to the G terminal.
• Loosen the terminal block screws. Insert wires then retighten the terminal block screws.
• Place non-flammable insulation into the wall opening to prevent drafts.

Terminal Designations
The following terminals on the thermostat wall plate are wired according to the type of HVAC system connected to and how the thermostat is configured.

Wiring Tips

Wire Specifications
Use shielded or non-shielded 18-22 gauge thermostat wire.

Note:
In many heat pump systems with no emergency heat relay, a jumper can be installed between E and W2 to turn the thermostat into a single-stage control for Emergency Heat Operation.

Wiring Diagrams

Technician Setup

• Press MENU button
• Press and hold the TECHNIAN SETUP button for 3 seconds. This 3-second delay is designed so that homeowners do not accidentally access the installer settings.
• Configure the installer desired using the table below.
• Use the change settings and the NEXT STEP or PREV
• STEP key to move from one p to another. Note: Only press key when )wants to exit the Technician Setup options.

Programming

Swing Setting Tip
The second stage will turn on at 2x the swing setting. The second stage will turn off when 1xthe swing is reached. For example, if the swing setting is 0.5 degrees for heating and the thermostat is set at 70°F, the first stage will turn on at approximately 695°F. The second stage will turn on at 69°F. The second stage will turn off at 695°F and the first will turn off at 705°F. If the third stage is used, it will turn on at 685°F and turn off at approximately 69°F

A Note About Keypad Lockout:
The function of activating your lockout choice takes place after you have exited tech setup. To lock or unlock the keypad hold down the MENU for 3 seconds.

Contractor Call Number Note:
If contractor call number is selected ON, your phone number will show in the display if there has been a continuous call for heating or cooling for 24 hours or if the FAN button is held down for 3 seconds. To remove the phone number from the display, hold the fan button down for 3 seconds

Set Time (If using programming)

•  Press the MENU button
•  Press SET TIME
•  Day of the week will be flashing. Use the key to select the current day of the week.
•  Press NEXT
•  The current hour is flashing. Use the key to select the current hour. When using 12-hour time, make sure the correct a.m. or p.m. choice is selected.
•  Press NEXT
•  Minutes are now flashing. Use the key to select current minutes.
•  Press DONE when completed.

Programming

• Select HEAT or COOL using the system key. Note: You have to program heat and cool each separately.
• Press MENU
• Press SET SCHED. Note: Monday is displayed and the WAKE icon is shown. You are now programming the WAKE time period for that day.
• Time is flashing. Use the W key to make your time selection for that day’s WAKE time period.
• If you want the fan to run continuously during this time period, select ON with the FAN key.
• Press NEXT.
• The setpoint temperature is flashing. Use the G key to make your setpoint selection for that day’s WAKE period.
• Press NEXT.
• Repeat steps 4 through 7 for that day’s LEAVE time period, RETURN time period, and SLEEP time period.

Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday
Repeat steps 4 thru 7 for the remaining days of the week.

All of our programmable thermostats are shipped with an energy-saving pre-program. Your thermostat can be programmed to have all the weekdays the same, a separate program for Saturday, and a separate program for Sunday. There are four time periods for each program (WAKE, LEAVE, RETURN, SLEEP

Thermostat Quick Reference

A Note About Auto Changeover:
If in Auto ~ou have the ability to switch between Auto Heat or Auto Coo by pressing the System key. This can be done once the current mode has reached its set point. For example: If in Auto Heat, the heat setpoint must be satisfied before the thermostat will allow you to switch to Auto Cool. You can switch out of Auto by holding down the System key. To get back into Auto, you must toggle t e System key to Auto

Note About Programmable Fan:
The programmable fan feature will run the fan continuously during any time period it is programmed to be on. This is the best way to keep the air circulated and eliminate hot and cold spots in your building.

Reminders Note:
Once a Reminder has been turned on and set, the elapsed time can be checked by navigating to its tech setup step. The elapsed time will then appear in the text field. It can also be reset at that time by a press and hold of the third button from the left for 3 seconds. Resetting an expired Reminder can be done without entering tech setup, by a press and hold of the 3rd button from the left for 3 seconds

Setting up the WiFi connection

This WiFi thermostat works with App “SmartTherm” which is available for iOS and Android systems, users could download the App from the Apple store or Google Play.

REFERENCE:

DOWNLOAD MANUALS:

Hexa Controls STN855W WiFi Digital Programmable Thermostat Installation Manual

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Hexa Controls STN855W WiFi Digital Programmable Thermostat APP Operating Manual

Hexa Controls STN855W WiFi Digital Programmable Thermostat Installation Manual