PCT503-W Thermostat Quick Start Guide 1. Introduction The PCT503-W Thermostat allows you to control the thermostat remotely using a mobile phone. It can control:
Heating: one and two stages (W1, W2) Cooling: one and two stages (Y1, Y2) Heat pump: with auxiliary and emergency heat Fan (G) Power (C, RH, RC) 2. Get to know your device 2.1. PCT503 at a glance LED indicator Display Rotary button Movement Sensor 2 Home button Away button Hold button 2.2. Buttons Introduction Rotary button Choose options Confirm options Home button Switch between home screen and date & time screen Away button Switch between home screen and away screen 3 Hold button Enter Permanent hold Tips: operational details will be described below. 2.3. LED Indicator The LED indicator status is as below:
LED status Red Flashes Alternately flashing in RGB Green solid on Green flashes What it means The device has not joined a network. Thermostat initializing. Entering update mode. In the process of updating 2.4. Activity sensor Activity sensor is used to detect the activity so that the display could be on/off automatically. 4 Current Temperature Current Humidity 2.5. Display Status Target Temperature 2.6. Icon introduction icon What it means System Fan Home Schedule Settings Done 5 3. Get started To get started, you will need:
A PCT503-W Thermostat The SmartOWON mobile app Then follow the steps below:
Step 1: Install the PCT503 Thermostat. Please follow the Installation Guide on page 10 to install this device. Step 2: Set to suit your HVAC. After installing, press the rotary button, and then follow the setup guide. Step 3: Follow the guide on the PCT503 thermostat to connect to your mobile phone. It will lead you to the main login screen once the device is successfully connected to the phone. Then, you can log in and remotely control the thermostat. 6 7 4. Technical Specifications SOC Embedded Platform Multiple Sensor Power Supply LCD Screen Dimensions CPU: Cortex M4 RAM: 192K Temperature, Humidity, Motion AC 24V 3.5 TFT Color LCD 320 x 480 pixels 160 (L) x 87.4(W) x 33 (H) mm 8 5. Safety Notice This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, 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.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help Changes or modifications not expressly approved by the party responsible for compliance could void the users authority to operate the equipment. This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference, and
- This device must accept any interference received, including interference that may cause undesired operation. RF Exposure Warning Statements:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment shall be installed and operated with minimum distance 20cm between the radiator & body. 9 WARNING: Failure to follow these safety notices could result in fire, electric shock, other injuries, or damage to the device or other property. Read all the safety notices below before using the device. Avoid high humidity or extreme temperatures. Avoid long exposure to direct sunlight or strong ultraviolet light. Do not drop or expose the unit to intense vibration. Do not disassemble or try to repair the unit yourself. Do not expose the unit or its accessories to flammable liquids, gases or other explosives. 10 6. Installation Guide 6.1. In the box Thermostat Wiring Module SWB511 (Optional) 11 6.2. Thermostat Installation Step 1: Turn power off This protects yourself and your equipment. Turn off the power at the breaker box or switch that controls your heating/cooling system. And please check that your system is off. Breaker box Switch Step 2: Remove the old thermostats cover Some covers pop off, while others need to be unscrewed Step 3: Check your system CAUTION: Do not connect PCT503 thermostat to high voltage wires. If your old thermostat is labeled 120V or 240V or has thick wires with wire nuts, your system is high voltage. If you are not sure, please contact support. 12 Step 4: label wires with Tags Label the wires using wire labels as you disconnect them Terminals What it means RC RH W1 W2 Y1 Y2 G C O/B S 24V AC power from Cooling transformer 24V AC power from Heating transformer 1st stage Primary heating relay / Aux heat 2nd stage Secondary heating relay / Aux heat 1st stage Primary cooling compressor contactor 2nd stage Secondary cooling compressor contactor Fan relay
*24V AC common Changeover valve for heat pumps Wiring Module Connection Multiple use reserved, including but not limited to:
emergency heat line, humidifier control
*
13 Step 5: Install the wiring module (Optional) Note: Check your wires, see if there's C-wire. If you have the C-wire, skip this step 5 and go to step 6, if you don't have the C-wire, go on step 5. The C-wire provides power to the smart thermostat, if you don't have a C-wire in your old system, you need to install the wiring module to use the exiting wires to power your thermostat. 1. Find the control board of your HVAC system, use the tags provided to label the wires from the control board to the thermostat. Control board Thermostat 2. Disconnect the R/RC, W-O/B, Y, G wires form the control board and reconnect them correspondingly to the 4 terminals side of the wiring module. For Y-wire and G-wire, you can connect the Y-wire to S-terminal, G-wire to C terminal, then change the label of the Y-wire to the S-wire, the G-wire to the C-wire. Take a picture of your wires with new label to help you remember. 14 3. Generally the control board will have R, G, Y, W, C terminal, connect the prewired side of the wiring module (5 terminals) to the corresponding terminals. 4. Install your control board Replace the Y-wire tag with the S tag and the G-wire tag with the C tag Terminals to Thermostat Terminals from the control board 15 Step 6: Remove the old thermostat base Unscrew the old thermostat base from the wall, gently pull it out and ensure wires not fall back into the hole in the wall. Step 7: Attach the base of the PCT503 to the wall Bundle and insert wires through the hole in the base of the PCT503, then attach the base to the wall with the screws. Step 8: Connect wires Connect wires to the corresponding terminal in the base. If you have installed a wiring module in step 5, use the picture to help you remember the name of wires. Take a picture of the wires when you done to help you remember, you will be asked for the wiring configuration in the setup wizard. 16 Step 9: Switch the DIP switch Switch the DIP switch in the back of the thermostat to RC if you have connected both RC-wire and RH-wire to the wall plate, otherwise switch it to the RC&RH side. Step 10: Attach the PCT503 to the base Gently push the PCT503 to the base until it clicks. Step 11: Power on your system Turn the power back on to the Heating/Cooling system. 17 6.3. Wiring Diagrams Below will show you the wiring diagrams for common HVAC equipment. 1. Conventional heating and cooling system Air conditioner Furnace For 2 heat and cool if applicable Remove the jumper for RC or RH, switch the DIP switch in the back of the thermostat to RC if you have connected both RC-wire and RH-wire to the wall plate, otherwise switch it to the RC&RH side. 18 2. Heat pump (air or geothermal) with auxiliary heat Heat pump Air handler For 2 heat and cool if applicable Remove the jumper for RC or RH, switch the DIP switch in the back of the thermostat to RC if you have connected both RC-wire and RH-wire to the wall plate, otherwise switch it to the RC&RH side. 19 3. Boiler or radiant system with air handler and conventional cooling or heat pump Air conditioner or Heat Pump Boiler For 2 heat and cool if applicable
* For heat pump only Remove the jumper for RC or RH, switch the DIP switch in the back of the thermostat to RC if you have connected both RC-wire and RH-wire to the wall plate, otherwise switch it to the RC&RH side. 20