Mco-home MH-3928 SMART Thermostat
Introduction
MH-3928 thermostat is used to control up to 3 stages heating and 2 stages cooling system with 8 types control system, EM heat activation, adjustable compressor delay time and O/B changeover. It is with tempered touch capacitive button, quick connecting terminals to save installer’s time. Support S2 function.
Technical Parameters
- Power Supply: AC24V
- Resistive Load:< IA
- Self-Consumption: <2W
- Thermistor: NTC thermistor
- Temp. Setting Range: 10-37-C
- Precision: 0.1 t:(11′)
- Outcase: Tempered glass + PC
- Dimension: 104*104*20mm
- Installation: 60.3mm hole pitch
- Active Element: Relay switch μ
- Maximum transmitting power: +3dBm
- Z-Wave Frequency: Operating frequency range, defmed by the regulatory bodies (for Z-wave in Europe: 868.0 -868.6 MHz, 869.7 – 870.0 MHz)
Precautions
Warnings
- Read the instructions before starting up the unit!
- This product is not a toy. Keep out of reach of children and animals!
- Do not expose the device to moisture, water or other liquids. Do not place liquids near or on the device!
- Do not attempt to disassemble, repair or modify the device yourself!
- This product is for indoor use only. Do not use outdoors!
CAUTIONS
- Risk of Electric Shock – More than one disconnect switch may be required to de-energize the equipment before servicing.
CAUTIONS
- Compressor protection is bypassed during testing. To prevent equipment damage, avoid cycling the compressor quickly.
MERCURY NOTICE
- An If this product is replacing a control that contains mercury in a sealed tube, do not place the old control in the trash. Contact your local waste management authority for instructions regarding recycling and proper disposal.
Note
- A wire saver acts as a splitter for applications that do not include a 24-volt C wire. If your heating/cooling system does not include a C wire, install the wire saver in or near the main unit (furnace, air handler) of your heating/cooling system.
Controlling Type
| No | Type | Working mode | Output Stage | Termimals(cool) | Termimals(heat) |
| 0 | 2C(conventional) | OFF | 2th cooling | GYI Y2 | |
| COOL | 1th cooling | GYI | |||
| 2H(conventional) | OFF | 2th heating | GWI W2 | ||
| HEAT | 1th heating | GWI | |||
|
2H/2C(conventional) |
COOL | 2th cooling | GYI Y2 | ||
| OFF | 1th cooling | GYI | |||
| HEAT | 2th heating | GWI W2 | |||
| AUTO | 1th heating | GWI | |||
| 2C(heat pump) | OFF | 2th cooling | G YI Y2(O/B) | ||
| COOL | 1th cooling | GYl(O/B) | |||
|
4 |
IH(heat pump) | OFF | 2th heating | G YI AUX (0/8) | |
| AUX optional | HEAT | 1th heating | GYI (O/B) | ||
| AUX | AUX | GAUX | |||
| 5 | 2H(heat pump) | OFF | 3th heating | GYI Y2AUX(O/B) | |
| AUX optional | HEAT | 2th heating | G YI Y2 (O/B) | ||
| AUX | 1th heating | GYI (0/8) | |||
| AUX | GAUX |
|
6 |
IH/IC(heatpump) | OFF | 1th cooling | GYI (O/B) | I |
| AUX optional | COOL | 2th heating | G YI AUX(O/B) | ||
| HEAT | 1th heating | GYl(O/8) | |||
| AUX | AUX | GAUX | |||
| AUTO | |||||
| 7 | I H/2C(heat pump) | OFF | 2th cooling | GYI Y2(O/B) | |
| AUX optional | COOL | 1th cooling | GYI (O/B) | ||
| HEAT | 3th healing | G YI Y2 AUX (O/B) | |||
| AUX | 2th heating | G YI Y2 (0/8) | |||
| AUTO | 1th heating | GYI (0/8) | |||
| AUX | GAUX |
Features
- Application range: gas/fuel boiler, electric heating, water heating, heat pump etc. 8 types control systems.
- Touch button operation interaction.
- Simpler way to connect wires without screwdriver.
Declaration of Conformity
Hereby, MCOHome declares that the device is in compliance with the essential requirements and other relevant provisions of Directive 2014/53/EU.
WEEE Directive Compliance
The device marked with this symbol should not be disposed of with household waste.It is the user’s responsibility to deliver the used appliance to a designated recycling point.
Z-Wave Compliance
MCOHome thermostat is a fully compatible Z-Wave Plus device.
Important Safety Information
REQUIRED: 24 VAC POWER (“C” WIRE)
Transformer illustrate
| Terminal | Conventional | Heat pump | |
| 1 | C | C |
24V AC power supply |
| 2 | Rh | Rh | |
| 3 | Re | Re | |
| 4 | WI | 0/B | Heating or changeover |
| 5 | W2 | AUX | 2ndstageheatingorauxiliaryheating |
| 6 | G | G | Fao |
| 7 | YI | YI | Compressorstage1 |
| 8 | Y2 | Y2 | Compressorstage2 |
Display
Functions & Settings
Working State Indicator
- Red heating icon shows the output is heating
- Blue cooling icon shows the output is cooling
- Icon turns off shows the output is closed
Heat/Cool mode Setpoint Setting
- Press” A “or “V” to set the setpoint temperature. Setting range: 5-37C (41-981′) by default.
Auto Mode Setpoint Setting
Under Auto mode and in the home page, short press the “V” or “
” button can set the Auto Mode Setpoint Setting. From the left side it is for Auto Heat setpoint setting, press the” V” or “ ” button can change the temperature value, then short press 
will swift to Auto Cool setpoint. Short press again will back to the home page and will only display the setpoint value which currently used.
Secondary Menu Setting
In home page, short press will enter into the following user menu interface:
- Mode setting
- Fan mode setting
- Screen brightness
Mode Setting
- Press ““or “V ”to select current working mode, press to confirm current setting and enter the next user menu. After 10sec without any operation, it will back to the home page.
Fan Mode Setting
- Press “V” or “” button to change the options in the fan state area from Fan On to Fan Auto.
- Fan on: In this state, the fan is normally on. If thennostat is under OFF state, then the fan is OFF.
- Fan Auto: In this state, fan turns on automatically once the device is heating or cooling. Fan is OFF when the output closed.
Screen Brightness
- Auto OFF or Always On can be set.
Z-Wave Configuration
Under home page interface, press”“and” V ”button synchronously for 3 sec then the device will enter into the Z-WAVE MENU interface. Under Z-WAVE MENU interface, short press then the device will send out a Z-WAVE Node Info. “–“”shows the device does not have NODE ID ,”002″is the device NODE ID. Under Z-WAVE MENU, press ““and” V ”buttons synchronously for 3 sec, then the device will back to the home page. Under Z-WAVE MENU, without any operation for 10 sec, the device will back to the home page.
Secret Menu(Can be configured via Z-Wave parameters, please refer to the Z-Wave Parameters Setting table)
Under home page interface, long press for 5 sec, the device will enter into SECRET MENU. Press “” or”V”button to select the menu, press to confirm the selected menu, then press” “or”V”button to modify the value, after setting is done, press as confirm. Exit from the menu will be automatically after 30 sec no use or holding for 5 sec again.
| Menu Number | Item | Range | Default | Description |
| 0 | RESET FACTORY | ON/OFF | OFF | Restore factory setting |
| EM HEAT MODE | ON/OFF | OFF | OFF—Tum olTEM HEAT MODE ON—Tum on EM HEAT MODE | |
|
LOCK KEY |
ON/OFF |
OFF |
OFF—Unlock button
ON—” I\” and” V” button will be locked. It is invalid in Secret Menu interface. |
|
| BEEP | ON/OFF | ON | OFF—Turn off the Beep sound. ON— Turn on the Beep sound. | |
| 4 | CHANGEOVER | ON/OFF | ON | OFF—Tum off CHANGE OVER ON—Tum on CHANGE OVER |
| OB LOGIC | 0-1 | 0 | 0: OFF—OB normal logic
I: ON—OB opposite logic |
|
| 6 | TEMP SCALE | C/F | F | C: Celsius F: Fahrenheit |
| CONTROL TYPE | 0-7 | ,·c | 0-7 control type wrote as above | |
|
TEMP DIFF |
0-3 C | Temperature difference value(Temperature unit will follow the device’s unit setting) | ||
| 0-5 “F | 21′ | |||
|
9 |
TEMP CALI BRA |
-J0C-J0″C | oc | Temperature calibration value(Temperature unit will follow the device’s unit setting) |
| -181′-181′ | 01′ | |||
|
JO |
SET UPPER |
1-99( | 37C | Set temperature upper value,upper>lower(Temperature unit will follow the device’s unit setting) |
| 1-991′ | 981′ | |||
|
11 |
SET LOWER |
0-99( | SC | Set temperature lower value,upper>lower(Temperature unit will follow the device’s unit setting) |
| 0-991′ | 411′ | |||
| 12 | PROTECT DELAY | 0-\0min | I min | Compressor output delay time
0: OFF 1-10: Delay time in minute |
|
13 |
SCREEN OFF |
0~60min |
I min |
Automatically turn off screen time 0: OFF
1-60: Automatically turn off the screen after certain time by minute. |
Z-Wave Function
- The device supports S2 function
- Z-WAVE supported Command Class:
- COMMAND_CLASS_ZWAVEPLUS_INFO,
- COMMAND CLASS_ VERSION,
- COMMAND CLASS_MANUFACTURER_SPECIFIC,
- COMMAND CLASS_POWERLEVEL,
- COMMAND_CLASS_ASSOCIATION,
- COMMAND CLASS_ASSOCIATION_ GRP INFO,
- COMMAND CLASS_SENSOR_MULTILEVEL,
- COMMAND CLASS_THERMOSTAT_SETPOINT,
- COMMAND CLASS_THERMOSTAT_MODE,
- COMMAND CLASS_THERMOSTAT_OPERATING_STATE,
- COMMAND CLASS_THERMOSTAT_FAN_MODE,
- COMMAND_CLASS_THERMOSTAT_FAN_STATE,
- COMMAND CLASS_TRANSPORT_SERVICE_ V2,
- COMMAND CLASS_SECURITY 2,
- COMMAND CLASS_SUPERVISION,
- COMMAND_CLASS_FIRMWARE_UPDATE_MD
- COMMAND CLASS_BASIC,
- COMMAND_CLASS_CONFIGURATION,
Association Group
| AG Identifier | Max Node ID | Command Class | Trigger Situation |
|
0x0I |
COMMAND CLASS SENSOR MULTILEVEL V5, SENSOR_MOLTJLEVEL_REPORT_V5 – |
|
|
| COMMAND CLASS THERMOSTAT MODE V2, THERMOSTAT_MODE_REPORT – – | Device mode changes | ||
| COMMAND CLASS THERMOSTAT OPERATING STATE, THERMOSTAT_OPERATING_STATE-:_REPORT | Device status changes | ||
| COMMAND CLASS THERMOSTAT SETPOINT V2, THERMOSTAT_SETPOINT_REPORT-:_v2 – | Set point value changes | ||
| COMMAND CLASS THERMOSTAT FAN MODE, THERMOSTAT_FAN-:_MODE_REPORT – | Fan mode changes | ||
| COMMAND CLASS THERMOSTAT FAN STATE, THERMOSTAT_FAN-:_STATE_REPORT – | Fan status changes | ||
| COMMAND CLASS DEVICE RESET LOCALLY, OEVICE_RESET_LOCALLY_NOTIFICATION | Restore factory setting |
Z-Wave Parameter Setting
| Number | Function | Size | Description | Default | Possible Values |
| Automatic Temp Scale Reporting | 0: Celsius I: Fahrenheit | 0-1 | |||
| Temperature Difference Reporting(Celsius) | Unit: 0.1 C 0:Disabled 3-1000:n*O. I ·c A temperature value greater than this
will be automatically reported to the gateway. |
0, 3-1000 | |||
|
Temperature Difference Reporting(Fahrenheit) |
Unit:0.1F 0: Disabled 3-1000:n*0. l FA temperature value greater than this will be automatically reported to the gateway. | JO | 0, 3-1000 |
| Timed Report Intervals (Temp.) | 0: Disabled 30-30000: Temperature value will be automatically reported to the gateway in a defined time interval by second. | 60 | 0, 30-30000 | ||
| 6 | Humidity Difference Reporting | 0: Disabled 1-99: A humidity difference value greater than this will be actively uploaded to the gateway. | 0-99 | ||
| Timed Report Intervals (Humidity) | 0: Disabled 30-30000: Humidity value will be automatically reported to the gateway in defined time interval by second. | 90 | 0, 30-30000 | ||
| II | EM HEAT MODE | 0: OFF 1:0N | 0-1 | ||
| 12 | LOCK KEY | 0: OFF
1 :ON(“ |
0-1 | ||
| 13 | BEEP | 0: OFF l:ON | 0-1 | ||
| 14 | CHANGEOVER | 0: OFF l:ON | 0-1 | ||
| 15 | OB LOGIC | 0: OFF(OB logic is normal) I: ON(OB logic is opposite) | 0-1 | ||
| 17 | CONTROL TYPE | 0-7 control type wrote as above. | 0-7 | ||
|
18 |
TEMP DIFF |
Temperature difference value(Temperature unit will follow the device’s unit setting) |
!(Celsius) | 0-3(Celsius) | |
| 2(Fahrenheit) | 0-5(Fahrenheit) | ||||
|
19 |
TEMP CALIBRA |
Temperature calibration value(Temperature unit will follow the device’s unit setting) |
(-10–+I0)Celsius | ||
| (-18–+ I S)Fahrenheit) | |||||
|
20 |
SET UPPER |
Set temperature upper value,upper>lower(Temperature unit will follow the device’s unit setting) | 37(Celsius) |
1-99 |
|
| 98(Fahrenheit) | |||||
|
21 |
SET LOWER |
Set temperature lower value,upper>lower(Temperature unit will follow the device’s unit setting) | 5(Celsius) |
0-98 |
|
| 41(Fahrenheit) | |||||
| 22 | PROTECT DELAY | Compressor output delay time 0: OFF 1-10: Delay time in minute | 0-10 | ||
|
23 |
SCREEN OFF |
Automatically tum off-screen time
0: OFF 1-60: Automatically tum off the screen after certain time by minute |
0-60 | ||
| 255 | RESET FACTORY | Write 85: Restore the factory setting (write only) | 85 |
Warranty
1-Year Limited Warranty
We warrant this device to be free from defects in material and workmanship under normal aod proper use for one year from purchase date of tho original purchaser. We will, at its option, either repair or replace aoy part of its products that prove defective by reason of improper workmanship or materials. TIIIS LlMITED WARRANTY DOES NOT COVER ANY DAMAGE TO THIS PRODUCT THAT RESULTS FROM IMPROPER INSTALLATION, ACCIDENT, ABUSE, MISUSE, NATURAL DISASTER, INSUFFICIENT OR EXCESSIVE ELECTRICAL SUPPLY, ABNORMAL MECHANICAL OR ENVIRONMENTAL CONDITIONS, OR ANY UNAUTHORIZED DISASSEMBLY, REPAIR OR MODIFICATION.
This limited warranty shall not apply if
- the product was not used in accordance with any accompanying instructions
- the product was not used for its intended function. This limited warranty also does not apply to any product on which the original identification information has been altered, obliterated or removed, that has not been handled or packaged correctly, that has been sold as second-hand or that has been resold contrary to Country and other applicable export regulations.
Reference
Download Manual:
Mco-home MH-3928 SMART Thermostat User MANUAL
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