Owon PCT503 User manual

PCT503 Smart Thermostat (EU)
Quick Start Guide

2
Safety Notice
WARNING: Failure to follow these safety notices could result in fire,
electric shock, other injuries, or damage to the Smart Thermostat and
other property. Read all the safety notices below before using the Smart
Thermostat.
• 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 on yourself.
• Do not expose the unit or its accessories to 󽗊ammable liquids, gases or
other explosives.

3
Technical speci󽗉cations
Thermostat:
Compatibility
Compatible systems
• Y-PLAN /S-PLAN Central Heating and hot
water
• 230V combi boiler
• Dry contact combi boiler
Temp. Sensing Range • − 10° C to 125° C
Temp. Resolution • 0.1° C, 0.2° F
Temp. Setpoint Span • 0.5° C, 1° F
Humidity Sensing Range • 0 to 100% RH
Humidity Accuracy • ±4% Accuracy through the range of 0% RH
to 80% RH
Humidity Response Time • 18 seconds to reach 63% of the next step
value
Wireless Connectivity
Wi-Fi • ZigBee 2.4GHz IEEE 802.15.4
Output Power • +3dBm (up to +8dBm)
Receive Sensitivity • -100dBm
ZigBee pro󽗉le • Home Automation Pro󽗉le
RF Characteristics
• Operating frequency: 2.4GHz
• Internal PCB Antenna
• Range outdoor/indoor: 100m / 30m

4
Heat receiver:
Wireless Connectivity • ZigBee 2.4GHz IEEE 802.15.4
RF Characteristics
• Operating frequency: 2.4GHz
• Internal PCB Antenna
• Range outdoor/indoor: 100m / 30m
Power input • 100-240 Vac
Dimensions • 64 x 45 x 15 (L) mm
Weight • 63g
Wiring • 18 AWG
Physical Speci󽗉cations
Embedded Platform • MCU: 32-bit Cortex M4; RAM: 192K; SPI
Flash: 16M
LCD Screen • 3.5” TFT Color LCD, 480*320 pixels
LED • 3-color LED (Red, Blue, Green)
Buttons • One rotary control wheel, 3 side-buttons
PIR Sensor • Sensing Distance 5m, Angle 30°
Speaker • Click sound
Data Port • Micro USB
Power Supply • DC 5V
• Rated power consumption: 5 W
Dimensions • 160(L) × 87.4(W)× 33(H) mm
Weight • 227g
Mounting Type • Stand
Operating environment • Temperature: -20° C ~ +50° C
• Humidity: up to 90% non- condensing
Storage Temperature • -30° C to 60° C

5
Welcome
1
The PCT503 thermostat makes it easier to control your household
temperature and hot water. It is designed to work with the ZigBee gateway
so that you could remotely control the temperature anytime through your
mobile phone. You can schedule your thermostat working hours so it will
work based on your plan.
This guide will provide you with an overview of the product and will help
you understand how to use it.
In the box
PCT503 Smart Thermostat
Heat Receiver
Stand
User guide
Screws
2

6
Installation Guide
3
Warning!
• High voltage! The PCT503 thermostat must be installed and serviced only
by a quali󽗉ed electrical personnel.
• Do not touch the terminals of the device during testing.
• Turn o󽗈 all the power supply for this equipment before installing.
• Make sure that the power supply is o󽗈 before connecting or disconnecting
it to an auxiliary device.
• Always use a properly rated voltage sensing device to con󽗉rm power is
o󽗈.
• Replace all devices, doors and covers before applying power to the
equipment.
Failure to follow these instructions will result in death or serious injury.
You should install the receiver 󽗉rst. The Heat Receiver is necessary and do
not connect the thermostat directly to your heating system,even if there are
low-voltage wires.High voltage current will ruin your thermostat.
Before the installation, please notice:

7
Step 1. Switch o󽗈 the power
Before you get started, please turn off the heating system and the
thermostat . Remember! You are working with mains voltage, so protect
yourself.Adjust the temperature in your old thermostat to double check the
system is o󽗈.
Step 2. Position the Heat Receiver
Use the screws to mount the Heat Receiver near the boiler or junction box.
Note:The Thermostat and Heat Receiver communicate wirelessly within
30 meters. Walls and large objects (boiler, hot water tank, etc.) between
them can a󽗈ect the communication range, and metal objects can block the
signal.Please try to avoid those objects between the Heat Receiver and the
thermostat when installing.
3-1 Installing the Heat Receiver
502-Receiver
654
N
L 1 2 3
Boiler
30M MAX
Wired
Wireless
ThermostatHeat receiver

8
• Connect the L (live) and N (neutral) terminals on the Heat Recevirer to the
L and
N circuit on the boiler or junction box to power the Heat Recevirer.
Connect the heating control circuit to the Heat Recevier 4 (normally open),
5 (common), 6 (normally closed) as needed.
• If your system has a hot water control circuit, connect it to 1 (normally
closed), 2 (common), 3 (normally open) as needed.
Terminal designation:
Terminals What it means
L Live wire
NNeutral wires
1Hot water relay normally closed, (3A resistive,1A inductive)
2Hot water relay common, (3A resistive,1A inductive)
3Hot water relay normally open, (3A resistive,1A inductive)
4Heating relay normally open, (3A resistive,1A inductive)
5Heating relay common, (3A resistive,1A inductive)
6Heating relay normally closed, (3A resistive,1A inductive)
Hot water LED indicator
Heating LED indicator
Step 3. Connect the wires
Connect the wires correspondingly from the boiler or junction box to the
Heat Receiver according to your heating system:
502-Receiver
654
N
L 1 2 3

9
Wiring diagrams
Below is the wiring diagrams for di󽗈erent system.
230V combi boiler
Power supply
for Heat receiver
N L 1 2 3 4 5 6
N L
L
N
3A fuse
Boiler
230V/ 50Hz

10
Dry contact combi boiler
Power supply
for Heat receiver
N L 1 2 3 4 5 6
A B
L
N
3A fuse
Boiler
230V/ 50Hz