Lizard CONTROL RS-485 FAN COIL COMMUNICATION THERMOSTAT User Manual

Lizard CONTROL RS-485 FAN COIL COMMUNICATION THERMOSTAT

SPECIFICATION

• Electrical Rating…………………………100~240VAC 50/60Hz
• Fan Relay Amps inductive……………3A
• Cool Relay Amps inductive…………0.5A
• Set point Temperature Range……………5℃to 35℃
• Ambient temperature operation…………0℃~+50℃
• Ambient temperature-transport………….-10℃~+60 ℃
• Dimensions…………………………86mm×86mm×25mm (or 3.38″×3.38″×0.985″)
• Color………………………………………White

FEATURES

• Large LCD display with backlight
• Temperature adjustments are simple with the large up-down arrows
• Display shows both set points and room temperature simultaneously
• Maintains the temperature to within a 1-degree set point
• Auto fan with adjustable 3-fan speed.
• Permanent user setting retention during power loss, no batteries are required
• Room Sensor or External sensor model option
• Remote control
• With RS485 communication.

PREPARATION

The Thermostat Buttons and Switches

1. Display area
2. Power button
3. System button (COOL, HEAT)
4. Fan speed option button (HI MED LOW AUTO)
5. leep operation button
6. Raises temperature setting
7. Lowers temperature setting.
   The Display
8. Shows when thermostat is in sleep operation
9. Shows thermostat is in cooling mode
10. Always shows room temperature, whilesetting temperature shows set temperature
11. Always shows set temperature, while setting temperature shows room temperature.
12. Indicate the output to motorized valve is ON or OFF
13. Shows fan speed option
14. Shows Room Card function active

INSTALL THE THERMOSTAT：

ATTACH THERMOSTAT BASE TO WALL

WARNING: ELECTRICAL SHOCK HAZARD
Turn off power at the main service panel by removing the fuse or switching the appropriate circuit breaker to the OFF position before removing the existing thermostat.

1. Remove the packing material from the thermostat. Back cover module wiring
2. Junction box embedded in the Back cover
3. The screws through the back cover are tightened and fixed
4. Gently pull the control panel straight off the back cover. Forcing or prying on the thermostat will cause damage to the unit.
5. Installation is finished

WIRING DIAGRAM

OPERATION

CHECK THERMOSTAT OPERATION： Switch on the thermostat
External temperature sensor function:
When connecting the external temperature sensor, room temperature displays for external temperature, control the outside temperature sensor shall prevail. When there is no connect external temperature sensor with built-in temperature sensor temperature shall prevail.
Fan operation

1. PUsh fan button, the display will show and Auto separately means fan rotate in HI MED LOW or AUTO speed.
2. If you select AUTO speed, fan operation will change speed according to the difference between the room temperature and set temperature. If room temperature is 3℃higher than setting temperature in cooling or3℃lower than setting temperature in Heating. Fan will run in HI speed. If room temperature is 2℃- 3℃higher than setting temperature in cooling or 2℃-3℃lower than setting temperature in Heating. Fan will run in Medium speed. If room temperature is 0℃-2℃higher than setting temperature in cooling or 0℃-12℃lower than setting temperature in Heating. Fan will run in Low speed.

Heat system operation

1. Press the system switch to heat mode ( )
2. Press “+1” to adjust the thermostat setting above the room temperature. The heating Syste1m should start to operate.
3. Press “-” to adjust the thermostat setting below the room temperature. The heating system should stop operating.

Cooling system operation

1. Press system switch to cool mode ( )
2. Press “-“ to adjust thermostat setting below room temperature. The cooling system should start to operate.
3. Press “+” to adjust the temperature setting above room temperature. The cooling system should stop operating
   Network communication Communication protocol is standard RS485 protocol connect the upper computer, can control the thermostat temperature and fan speed.

CONFIGURATION

Configuration Menu
The configuration menu allows you to set certain thermostat operating characteristics to your system or personal requirements. Switch off the thermostat and hold the sleep operation Button ○,5 for over 4second till power on again means you have entered the first configuration menu item. There are 6 menu items. Press button ○,5 to change to the next item. Then press the button ○,5or ○,2 to confirm, and exit preferences return to switch off . Switch on the thermostat and press ○,5 to come to the sleep operation . In the off state, press this button more than 4 seconds. You can cycle into the Implicit menu settings; In Implicit menu settings mode, press button ○,5 more than 4 seconds,it will display dEF, flash three times, All the settings back to the initial value.

Step	Press buttons	Displayed （factory default）	Press▲、▼to select	Descriptions
1	○ ,5 4 seconds	01    (0)	-3 — +3	Adjust temperature coefficient
2	○ ,5	02（35℃）	20℃—35℃	Select maximum setting temperature for heating
3	○ ,5	03（5℃）	5℃—20℃	Select minimum setting temperature for cooling
4	○ ,5	04（rE）	rd, rE	Memorize option before power loss
5	○ ,5	05（ 1 ）	1、2、3	Display backlight option
6	○ ,5	06 (On)	OFF/On	Fan stop option

1. Select temperature recalibrates Adjustment 3 LO to 3 HI –
   You can adjust the room temperature display up to 3 higher or lower. Your thermostat was accurately calibrated at the factory but you have the option to change the display temperature to match your previous thermostat.
2. Select maximum temperature for heating.
   This feature provides a maximum setpoint temperature for heat. The default setting is 35℃, It can be changed between 20℃to 35℃
3. select minimum temperature for cooling
   This feature provides a minimum setpoint temperature for cooling. The default setting is 5℃, It can be changed between 5℃to 20℃
4. Memorize option before power loss
   Using ▲ & ▼ button to select between “rE” and “rd”. “rE” means the thermostat will Memorize its ON or OFF status before power loss. After power supply comes to  normal again, the thermostat will remain ON or OFF according to what it is before power loss. “rd” means no matter the thermostat is switched on or off before power loss, after the power supply comes to normal again the thermostat will keep power off
5. display backlight option
   Select 1 the light will be on when any button of the thermostat is touched. Select 2 the display will keep the light on continuously. Select 3 the display will keep the light off continuously Factory default is 1
6. fan stop option
   Using ▲ & ▼ button to select between “On” and “OFF”. If you select “On”, the
   thermostat will turn on the fan at a speed provided by the Fan Switch and will not stop the fan when there is no call for heat or cool. If you select “OFF”, the thermostat will stop the fan when there is no call for heat or cool.

Communication address setting
Before entering network debugging, need to set the all thermostats communication address and every thermostat communication address is uniqueness and different, or else, the thermostat communication will be broken-down and stop.
In switch off state, long press button ④over 5 seconds till power on again means you have entered communication address setting, press “+” or “-“ to modify the address, the setting range is 1～255, then press the button ②to confirm, and exit communication address setting return to switch off.

CUSTOMER ASSISTANCE After reading this guide, if you have any question about the operation of your
thermostat,please contact your installer or service provider.

Thermostat universal interface protocols V2.0

Basic description

Number	Parameter	Protocol provision
1	Operating mode	RS-485,master-slave；thermostat is the slave machine
2	Physical interface	A(+),B(-),GND three-wire system，or A(+),B(-) two- wire system
3	Baud rate	9600
4	Byte format	10 format（1 start bit+8 data bits +1 stop bit）
5	Transmission mode	RTU format（consult MODBUS standard）
6	Thermostat address	1—255
7	Command code	3，6(3—read thermostat， 6—set thermostat)
8	CRC check code	CRC-16(consult MODBUS standard)
9	CRC verification mode	CRC-16(consult MODBUS standard)
10	Data frame interval	Greater than 4 bytes

Read the thermostat frame format

 

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7	Byte 8
Thermostat address	03	00	00	00	08	CRC low	CRC high

Read the thermostat frame format

Command frame（given by upper computer）： Read the conditioner state

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7	Byte 8
Thermostat address	03	00	00	00	08	CRC low	CRC high

Response frame（given by thermostat)

Byte 1	Byte 2	Byte 3	Byte 4…….Byte 19	Byte 20	Byte 21
Thermostat address	03	10	Air conditioning state value	CRC low	CRC high

Air conditioning state value instruction form

Byte	Value	instruction	Register address
Byte 4	00	Thermostat state is high byte: general is 00	0register(ON/O FF)
Byte 5	00/01	Thermostat state is low byte: 00 –means closed，01—means open
Byte 6	00	Thermostat mode is high byte: general is 00	1 register (MODE)
Byte 7	01-03	Thermostat mode is high byte: 1-cooling，2- heating，3- ventilated
Byte 8	00	Thermostat fan speed is high byte, general is 0	2 register (Fan speed)
Byte 9	00-03	Thermostat fan speed is low byte
		00 – Auto speed
		01 – High speed
		02 – Mid speed
		03 – Low speed
Byte 10	XX	Setting temperature high byte	3 register (setting temperature)
Byte 11	YY	Setting temperature low byte
Byte 12	00	Thermostat current temperature high byte	4 register (room temperature)
Byte 13	00	Thermostat current temperature low byte
Byte 14	00	Reserved words 1 high byte	5 register (spare)
Byte 15	00	Reserved words 1 low byte
Byte 16	00	Reserved words 1 high byte	6 register (spare)
Byte 17	00	Reserved words 1 high byte
Byte 18	00	Reserved words 1 high byte	7 register (spare)
Byte 19	00	Reserved words 1high byte

Read the thermostat frame format
Command frame 1：Read the thermostat ON/OFF state

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7	Byte 8
Thermostat address	03	00	00（start address）	00	01	CRC low	CRC high

Response frame（give by a thermostat）

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7
Thermostat address	03 (command code)	02 (Byte count)	ON/OFF state high byte	ON/OFF state low byte	CRC low	CRC high

ON/OFF state value：0000 – Fan coil OFF， 0001 – Fan coil ON
Command frame 2：Read the thermostat mode state

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7	Byte 8
Thermostat address	03	00	01（start address）	00	01	CRC low	CRC high

Response frame（give by a thermostat）

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7
Thermostat address	03 (command code)	02 (Byte count)	Mode state High byte	Mode state Low byte	CRC low	CRC high

Mode state value：0001 – cool， 0002 – heating，0003 –ventilated
Command frame 3：Read the thermostat fan speed

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7	Byte 8
Thermostat address	03	00	02（start address）	00	01	CRC low	CRC high

Response frame（give by thermostat）

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7
Thermostat address	03 (command code)	02 (Byte count)	Fan speed High byte	Fan speed Low byte	CRC low	CRC high

Fan speed state value：0000 – auto，0001 – high，0002–middle，0003– low
Command frame 4：Read thermostat setting temperature

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7	Byte 8
Thermostat address	03	00	03（start address）	00	01	CRC low	CRC high

Response frame（give by thermostat）

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7
Thermostat address	03 (command code)	02 (Byte count)	Setting temperature High byte （XX）	Setting temperature Low byte (YY)	CRC low	CRC high

Setting temperature value 0Xxxyy (0x012c) high byte 01 low byte 2c 0x012c= 300 （setting temperature only can be the multiple of 10，the range is 50~350）setting temperature is 30.0℃
Child lock state：0000 – unlock， 0001– lock
Command frame 5：Read the thermostat current temperature

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7	Byte 8
Thermostat address	03	00	04（start address）	00	01	CRC low	CRC high

Response frame（give by a thermostat）

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7
Thermostat address	03 (command code)	02 (Byte count)	Child lock High byte	Child lock Low byte	CRC low	CRC high

Room temperature value 0Xxxyy (0x012c) high byte 01 low byte 2c 0x012c= 300 the room temperature is 30.0℃
Set the thermostat frame format

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7	Byte 8
Thermostat address	06	00	00(start address)	Setting value high byte	Setting value low byte	CRC low	CRC high

Command frame 1（given by upper computer）set the thermostat ON/OFF

Setting value: 0000 – thermostat OFF, 0001 – thermostat ON;
Response frame: correctly operate, the instruction will return to the same;
Operation is not correct does not response, the upper computer will manage;
The rule about the subsequent response of setup command is same with this.
Command frame 2（give by the upper computer）set the mode

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7	Byte 8
Thermostat address	06	00	01(start address)	Setting value high byte	Setting value low byte	CRC low	CRC high

Setting value: 0001 – cooling， 0002 – heat， 0003 – ventilate;
Command frame 3（give by upper computer）set the fan speed

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7	Byte 8
Thermostat address	06	00	02(start address)	Setting value high byte	Setting value low byte	CRC low	CRC high

Setting value: 0000 – Auto speed, 0001- High speed, 0002- Mid speed, 0003- Low speed
Command frame 4（give by upper computer）set the setting temperature

Byte 1	Byte 2	Byte 3	Byte 4	Byte 5	Byte 6	Byte 7	Byte 8
Thermostat address	06	00	03(start address)	Setting temperature high byte	Setting temperature low byte	CRC low	CRC high

High byte 01 Low byte 2c 0x012c= 300 （setting temperature only can be multiple of 5， the range is 50~350）setting temperature is 30.0℃

REFERENCE:

DOWNLOAD MANUAL:

Lizard CONTROL RS-485 FAN COIL COMMUNICATION THERMOSTAT User Manual

Lizard CONTROL RS-485 FAN COIL COMMUNICATION THERMOSTAT User Manual