MCOHome MH8-FC User manual

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MCOHome Technology Co., Ltd
1
Fan Coil Thermostat
MH8-FC/MH8-FC4
Introduction
MCOHome Fan Coil Thermostat is a Z-Wave enabled device for indoor temperature control. It is
mainly applied to a 2-pipe or 4-pipe Fan coil system. It can read room temperature and local time, and
automatically control fan speed based on the temperature difference. The device is of high reliability
and practicability. This product can be included and operated in any Z-Wave network with other
Z-Wave certified devices from any other manufacturers.
Features：
 Capacitive touch buttons
 Tempered glass panel, PC alloy enclosure
 Precise temperature calibration function
 Non-volatile Memory, working state saved even power failure
 Intelligent on/off control of 3-speed fan, electric (ball) valve or air-valve
 Easily steel frame back plate installation
Specification
 Power Supply：AC85V~260V, 50/60HZ
 Resistive Load: ≤3A
 Self Consumption：< 1W
 Display Accuracy: 0.1 ℃
 Working Environment ：0～55℃;
<95% RH（Non-condensation)
 Temp. Setting :5～35℃（41~95℉）
 Dimension：86* 86*42mm
 Hole Pitch ：60-65mm （86 Standard
junction box）
 Z-Wave Frequency: 868.42MHz(EU)/
908.4MHz(US), 921.4MHz(AU) or other
customized frequency
Safety Information
To protect yourself and others from danger and to protect the device from damage, please read the
safety information before using it.
Important!
 A qualified electrician with the understanding of wiring diagrams and knowledge of electrical
safety should complete installation following the instructions.
 Before installation, please confirm the real voltage complying with the device’s specification.
Cut off any power supply to secure the safety of people and device.
 During installation, protect the device from any physical damage by dropping or bumping. If
happens, please contact the supplier for maintenance.
 Keep the device away from acid-base and other corrosive solids, liquids, gases, to avoid damage.
 Avoid overexertion during operation, to protect device from mechanical damage.
 Read all instructions and documentation and save for future reference.

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Installation & Wiring
Location:
Thermostat is suggested to be installed indoor, a place with around 1.5m height above the floor
where represents the average room temperature. It should be away from direct sunlight, any cover, or
any heat source, to avoid false signal for temperature control.
CAUTION: Cut off power supply at circuit breaker or fuse before installation to avoid fire, shock or
death!
Step 1: Remove the steel frame from the device, and secure it onto the junction box with two screws.
Step 2: Insert all wires into the right terminals and tighten screws. The wiring diagram is shown below.
Step 3: Attach the wired device on “A” points of the steel frame as shown first, and then push the
whole device into junction box.
Step 4: Confirm the device is well mounted, power on and it is ready to operate.
MH8-FC (2-pipe) MH8-FC4 (4-pipe)
Button & Display
MH8-FC (2-pipe): Only will display no matter heating or cooling
MH8-FC4 (4-pipe): displays when cooling, displays when heating.

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Operation
On/Off Setting
When power on, thermostat will display “OFF”，press to enter working interface.
When normal working, press to turn off the device, “OFF” displays and all outputs are off.
Local Time Setting
Press & hold “M” to enter local time setting. Touch “M” to switch among Week, Hour & Minute,
and then press or to set the parameters of flashing item. Press “M”, or wait for 15s to save the
value and return to display.
Working Mode Setting
Touch “M” to enter working mode setting, the current mode flashing. Press or to switch
among Cooling , Heating & Ventilation mode, then press “M”, or wait for 15s to
confirm the choice.
Temperature setting
Touch or to set local temperature value. Hold the buttons can set continuously. Press
“M”, or wait for 15s to save and return to room temperature display.
Fan Speed setting
In normal display, press to switch among the fan Speed: “Low, Medium, High, Auto”; Then
press “M”, or wait for 15s to confirm the choice.
Note: In Ventilation mode, no Auto speed choice.
 Fan Manually control
If fan speed is manually set, the device still auto controls the fan in such situation:
Cooling Mode：
Room temperature ≤ setting temperature, valve closes and fan stops;
Room temperature ≥ setting temperature +1 , valve ℃and fan opens.
Heating Mode：
Room temperature ≥ setting temperature, valve closes and fan stops;
Room temperature ≤ setting temperature -1 , valve ℃and fan opens.
 Fan Automation
Cooling
Mode
a. Room temperature ≤ setting temperature, valve closes automatically, fan stops;
b. Room temperature ≥ setting temperature +1 , fan turned ℃on in low speed;
c. Room temperature ≥ setting temperature +2 , fan turned ℃on in medium speed;
d. Room temperature ≥ setting temperature +3 , fan turned ℃on in high speed;
Heating
Mode
a. Room temperature ≥ setting temperature, valve closes automatically, fan stops;
b. Room temperature ≤ setting temperature -1 ,℃ fan turned on in low speed;
c. Room temperature ≤ setting temperature -2 , fan turned ℃on in medium speed;
d. Room temperature ≤ setting temperature -3 , fan turned ℃on in high speed;
Note: Fan will operate only if the valve opens.

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Temperature Unit Setting
In normal display, press and then will flash, then hold can switch between celsius℃
and fahrenheit℉.
Note: In fahrenheit unit mode, ℉ will not be shown on the display.
Temp. Sensor Error
If temperature sensor does not work, “E1” displays, fan stops and valve closes automatically.
Parameter Setting
Under the shutdown state, press & hold M to enter parameter setting menu. The password is 5138 and
press M to enter.
No. Function Range Default
Remark
P-01
Screen
Brightness 0-1 0 0: Dim without key touch 1: Always on
P-02
Fan work mode
0-1 0
0: fan and valve will be shutdown if room temp.
reaches setting temp.;
1: only valve will be shutdown if room temp. reaches
setting temp. The fan will continuously work in low
speed.
P-03
Reserve
P-04
Temp. Unit 0-1 0 0: Celsius 1: Fahrenheit
P-05
Beep 0-2 1 0 : Mute 1: Low 2: High
P-06
Power Failure
Memory 0-2 0
When power on again:
0:device will be in shutdown state (“OFF”);
1: device will be in working interface;
2: device will stay the status before power failure.
P-07
Temp.
Calibration
-5.0 ~
+5.0 ℃
0℃
P-08
Temp. upper
limit 5-99.5℃
35℃
Upper limit always > lower limit
P-09
Temp. lower
limit 5-99.5℃
5℃
P-10
Factory restore
53 Write 55
Z-Wave Operation
 Including & Excluding of Z-Wave network
Under the shutdown state, press & hold to enter interface for inclusion or exclusion of
Z-Wave network. Before device included into network, “- - -” will display on the screen. Then
press once, device will enter learning mode to get a node ID. If inclusion is success, a node
ID will display on the screen in a few seconds.
A node ID can always inform us whether the device is in the network or not.
Note: Follow the same steps to exclude the device from the network.

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After inclusion, turn off the device and then turn it on. Now the device is ready to be operated by
controller/ gateway in Z-Wave network.
 Association Group
Thermostat supports 1 association group. A gateway is suggested to associate with this
group. Then if any changes happen, such as: temperature, working mode, fan state etc., the
thermostat will report to this associated device (gateway). When the detected temperature change
≥0.5℃, device will send unsolicited report to the gateway.
 Command Class supported by the device:
COMMAND_CLASS_BASIC;
COMMAND_CLASS_THERMOSTAT_SETPOINT;
COMMAND_CLASS_THERMOSTAT_MODE;
COMMAND_CLASS_THERMOSTAT_FAN_MODE;
COMMAND_CLASS_THERMOSTAT_OPERATING_STATE;
COMMAND_CLASS_SENSOR_MULTILEVEL;
COMMAND_CLASS_ASSOCIATION;
COMMAND_CLASS_VERSION;
COMMAND_CLASS_MANUFACTURER_SPECIFIC
 Z-Wave Parameters Setting:
Add
Function Byte
Options Default
Remark
1 Upload temperature
format automatically
1
0x00Celsius
0x01Fahrenheit 0x02Follow
the main display
0x02
2 Upload temperature
automatically 1
0x00 OFF
0x01 Upload the difference
value only
0x02 Timing upload mode only
0x03 Upload the
difference+timing upload mode
0x03
3 Upload temperature
difference 2
Base on 0.1℃unit, 0x0005 by
default, 5*0.1℃=0.5℃,
0x0003~0x03E8
0x0005
0.5℃

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4 Upload time interval
regularly 2 Base on 1s unit, it suggest to be set above 30s 0x000A~0xFFFF
0x001
E 30S
FF Factory setting 1 0x55 Restore the factory
setting(write only)
Parameters
setting back to
default value,
association
groups deleted
1-year Limited Warranty
We warrant this product to be free from defects in material and workmanship under normal and
proper use for one year from purchase date of the original purchaser. We will, at its option, either
repair or replace any part of its products that prove defective by reason of improper workmanship or
materials. THIS LIMITED 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: (i) the
product was not used in accordance with any accompanying instructions, or (ii) 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.