mundoclima MUENR-H12T User manual

WIRED REMOTE CONTROLLER MUENR-H12T
Owner’s manual
KJRM-120H2/BMWKO-E
CL09205
Englishwww.mundoclima.com

● This manual gives detailed description of the precautions that should
be brought to your attention during operation.
● In order to ensure correct service of the wire controller please read
this manual carefully before using the unit.
● For convenience of future reference, keep this manual after reading it.

2) Press the buttons from left to right, from top to bottom, click ->▲ ->->... Turn on 1, 2,
3, 4, 5, 6, 7, 8 and 9, wait for 100% initialization, and enter the FCT page. After entering the
FCT page, the version number is displayed. All set parameters of the equipment are reset to the
default parameters, and saved. The timing settings and fault records are cleared. The equipment
returns to the factory state. (exit FCT after power on again).
3) Power o󰀨 the wireline controller and power it on again. The display language will be reset.
Press “ ” “ ” “ ” “ ” to select the language of the remote controller. After the language setting
is completed, click “ ”, select “YES”, and then click “ ” to enter the SETTING ADDRESS
interface. After setting SETTING ADDRESS, click “ ” to enter GENERAL SETTING. Then
after setting GENERAL SETTING, click “ ”.
Restore initialization
If the user accidentally sets the display language of the wire controller to a language that the
user does not know, the following three steps can be used to restore the wire controller to the
factory setting and reset the display language:
1) Power o󰀨 the wireline controller and power it on again. Press and hold + + to
enter the following page within 60 seconds.

Contents
1. Safety Precautions........................................................................................1
2. Overview of Wired Controller......................................................................3
3. Function Introduction....................................................................................8
4. Attached Table 1: Outdoor unit errors and protection codes........... 38
5. Attached Table About Modbus ................................................................ 42

1
! Caution
Read the safety precautions carefully prior to installation.
The important safety precautions are provided below and must be observed.
Meanings of marks:
Caution: Means improper handling may lead to personal injuries or material damages.
Warning: Means improper handling may lead to death or serious injury.
After the installation work is completed, conrm that the trial operation is normal and hand
over the manual to the customer for keeping.
1 Safety Precautions
The product and Operation and Installation Instructions record the following
content, including the operation method, how to prevent harms to others and
property losses, and how to use the product correctly and safely. Read the
text after understanding the content (identication and marker maps) below
carefully, and observe the precautions below.
[Note]: So-called “injuries” mean the harms not requiring hospitalization or
long-term treatment, generally referring to wounds, burns, or electric shocks.
Material damages refer to property and material losses.

2
Caution
Do not install the product at a place where ammable gas
easily leaks. Once ammable gas leaks and stays around the
wired controller, a re may be caused.
1 Safety Precautions
Icon Name
It indicates “prohibited”. The specic content of prohibition is provided using graphics or
text in the icon or nearby.
It indicates “mandatory”. The specic mandatory content is provided using graphics or
text in the icon or nearby.
Warning
Entrusted
installation
Entrust your distributor or a professional to install the product. The installation operator
must have acquired the relevant professional knowledge.
In case of independent installation, wrong operations will lead to a re, electric shock,
or injury.
Caution
in Use
Prohibited Do not spray combustible spray to the wired controller directly; otherwise a re may
be caused.
Prohibited Do not perform operations with a wet hand or allow water to enter the wired controller;
otherwise the wired controller will be damaged.

3
Enter the menu
structure from
the home page
Navigate the
cursor on the
display/navigate
in the menu
structure/ adjust
the settings
Come back to
the up level
BACK
OK
MENU Turn on or off the
space operation
mode
Long press for
unlocking /locking
the controller
2 Overview of Wired Controller
Basic using conditions:
1) Power range: power input: AC 8V ~ 12V;
2) Operating temperature: -20 °C ~ 60 °C;
Operating humidity: RH40%~RH90%;
Where: HP—HEAT PUMP;CO—ONLY COOLING;FC—FREE COOLING.
It’s a general manual. The functions of di󰀨erent models are di󰀨erent. The wired controller automatically
recognizes and hides irrelevant interfaces. Please set and inquire related parameters according to the
outunit model.
2.1 Operation Interface Description
Go to the next step when
programming a schedule in
the menu structure / conrm
a selection/enter a submenu
in the menu structure
ON / OFF
UNLOCK
(LONG PRESS)

4
HP: No icon
CO:
FC:
Set temperature
Number of parallel units
Current ERROR
Compressor mode on
operating usage rate
Heating mode
Cooling mode
DHW mode
Units
operating
COOL (FC:COMP/MIX/FC)
/HEAT/
DHW (DISPLAY ONLY IN
SINGLE PUMP)
Compressor
operating
Fan operating
usage rate
Fan on
Water
pump on
Silent
mode on
Monitor wired
controller icon
Centralized control
access of network
Anti-freezing or
manual defrost on
External electric
heater on
DAILY TIMER / WEEKLY SCHEDULE / ERROR / LOCK
2 Overview of Wired Controller
Set temperature:TWS/T5S:SETTING TEMPERATURE;TW:TOTAL OUTLET WATER TEMPERATURE,
T5:TANK TEMPERATURE;TSF:SAFE TEMPERATURE;

5
3 Function Introduction
Power on for the rst time or restore factory settings, you need to preset: SETTING ADDRESS and
GENERAL SETTING. Click “ ” after setting. Please follow the interface prompts.
3.1 Unlocking/Locking Operation
When the wired controller is locked, press and hold the “ ” button for 3s to unlock it. Then the lock
icon is not displayed and the wired controller can be operated.
When the wired controller is unlocked. press and hold the “ ” button for 3s to unlock it. Then the
lock icon is displayed and the wired controller cannot be operated. When there is no operation for
continuous 60s on any page, the wired controller returns to the home page and automatically locks,
displaying the lock icon.
Note: It can only be locked by long pressing the “ ” button for 3s under the main page, and it is
invalid under the “ ” page.
3.2 Power-on/o󰀨
When the wired controller is unlocked and the unit is on, “ ” can be pressed to power o󰀨 the unit
under the home page only. And it can be pressed to power on the unit when the unit is o󰀨.
In the unlocked state, the set temperature can be adjusted by pressing button. And you need to
Press “ ” button to conrm after setting. It’s invalid without conrmation within 5s.

6
LOCK UNLOCK: ON UNLOCK: OFF
HP-COOLING
CO-COOLING
HP-HEATING
HP-HOTWATER
FC-COOLING

7
Press “ ” to save the settings after setting and back to homepage. Or press “ ” to back. When
there is no operation for continuous 60s, it will save the settings and back to homepage.
3.3 Mode Setting
In Unlock mode, Press “ ” button to enter the menu setting interface, Press “ ” and “ ” buttons
to select “MODE” and set a mode, and Press “ ” button as shown in the above gure to access the
submenu (mode setting). As shown below: three modes available.
Cycle: Cooling-->Heating-->DHW-->Cooling. Skip the mode cycle when there is no corresponding
mode. The DHW mode is divided into single pump (no need to select the address) and multiple pumps
(need to select address 00-15, and the address of the unit without DHW function is directly skipped).
Only Tws/T5s and address can be set in cooling, heating and DHW mode. Tw/T5 can only be
displayed but not be set. DHW can only be power on/o󰀨 under the MODE setting.
HP-Cooling setting range lower limit is subject to the low water outlet control setting under SERVICE
MENU. CO/FC-Cooling setting range lower limit is subject to the lowest outlet water temperature set
by antifreeze ratio under PROJECT MENU.
Note：When the setting temperature is lower than 5 °C, the water-side system must increase
more than 15% of antifreeze, otherwise there will be a risk of damage to the unit.

8
3.4 Menu Setting
When the wired controller is unlocked, press “ ” to enter menu setting page as follows:
The default selection is “MODE” and choose the menu you need by pressing “ ” . Press
“ ” to enter its submenu or back to homeage by “ ”. Back to homepage if there is no
operation for 60s under menu page.
Note: the mode menu is invalid when the unit is controlled by modbus or host computer and
display as above.
4.3.6.1 USER MENU
Select “USER MENU” to enter the user menu. The interface display is as follows:

9
State query
Select “STATE QUERY” and press “ ”. Display as follows:
Users choose functions by “ ”.
Select “QUERY” in the “USER MENU” interface to access the query function. The interface
display and operation are as follows:
Select address by pressing “ ”, “ ” to view the status of the unit at that address.
Back to upper menu by “ ”.

10
Temp query
Select “TEMP QUERY” and press “ ”. Display as follows:
Select address by pressing “ ”, “ ” to view the temperature of the unit at that address. Back
to upper menu by “ ”.
History errors query
Select “HISTORY ERRORS QUERY” and press “ ”. Display as follows:
Select address by pressing “ ”, “ ” to view the history errors of the unit at that address. Press “ ”
“ ” to choose the history error that you want and the number of errors that can be viewed is 16.

11
Timer setting
Select “TIMER” and press “ ”. Display as follows:
Note: After MODBUS control and the remote control of the external machine are used, the
daily and weekly time settings of the wired controller are invalid, and users cannot enter the
timing menu for setting.
When MODBUS control and the remote control of the external machine are invalid. Select
“DAILY TIMER” and press “ ”. Display as follows:

12
Only one setting is enabled between “DAILY TIMER” and “WEEKLY SCHEDULE”. If any of the
pattern in “WEEKLY SCHEDULE” is set to ON, “DAILY TIMER” is disabled. “DAILY TIMER” can be
set across days, but “WEEKLY SCHEDULE” can’t.
Users can set up to two timers, and set the ON or OFF time (set the interval of time to 10 minutes)
operation mode (there are heating, cooling and DHW modes for single pump; only cooling and
heating modes can be selected for multiple pumps, and it cannot be set as DHW mode) and
temperature setting for each segment of timer.
It’s invalid if the ON and OFF time are same. Display as follows:
Operating Introduction:
Press “ ” “ ” to select TIMER, ACT, TIME ON, TIME OFF, MODE, TWS or SILENT MODE. When
the cursor stays at “TIMER ”, press “ ” and “ ” to select “TIMER 1” or “TIMER 2”. When it stays
at other items, we can also use “ ”, “ ” to adjust corresponding settings.
After setting, press “ ” to conrm saving, or press “ ” to cancel setting and return to the
previous interface.
If Time1 T.ON is set the same as Time1 T.OFF, then the setting is invalid, the ACT option for the
timer of this segment jumps to “OFF”, the setting of Timer2 is the same as that of Timer1, and the
timing interval of Time2 can cross with that of Time1.
For example, if Timer1 T.ON is set to 12:00 and Timer1 T.OFF is set to 15:00, then the values of Ti-
mer2 T.ON and Time2 T.OFF can be set in the range of 12:00-15:00. If the time interval crosses, the
machine will be powered on at the time T.ON which is set in Timer1 or Timer2, and will be powered
o󰀨 at the time T.OFF which is set in Timer1 or Timer2.
After the daily timer function setting is enabled, there will be corresponding prompts displayed on
the homepage.
When two timers overlap, the second setting takes precedence.

13
Weekly schedule setting:
Select “WEEKLY SCHEDULE” and press “ ”. Display as follows:
Press “ ” and “ ” buttons to select “WEEKLY SCHEDULE” or “WEEKLY SWITCH”. And press “ ” or
“ ” buttons to select Monday to Sunday.
After changing a setting, you need to press “ ” to conrm or enter the submenu. For “WEEKLY
SWITCH”, “OFF” means not to set the timing for this day or cancel the set timing. When change to “ON”
and conrm, you will enter the day timer. The operation is the same as the day timer. The page refers to
the day timer. The top displays the set day and Timer 1 or Timer 2 for that day.
There can be up to 2 timings in a day of weekly timing, and each timing needs to be set on and o󰀨 time
(set interval is 10 minutes).
Operating Introduction:
Press “ ” and “ ” to select “WEEKLY SCHEDULE”. Select the day you need by “ ” or “ ” , and
press “ ” to enter it. Then you can switch between TIMER, ACT, TIME ON, TIME OFF, MODE, TWS
and SILENT MODE by “ ” and “ ”. Refer to the operating introduction of “DAILY TIMER”.
General setting:
Select “GENERAL SETTING” and press “ ”. Display as follows:

14
Press “ ” and “ ” to select the date, time, and time format to be set. Adjust their parameters
by “ ” or “ ”, and press “ ” to save. The backlight time setting range is 10-1200s, the
default is 60s, and each adjustment is 10s.
Back to previous page by “ ” after setting. Only English is supported now.
Double Setpoint
Select “DOUBLE SETPOINT” and press “ ”. Display as follows:
Press “ ” and “ ” to select items and “ ” or “ ” to adjust parameters.
the lower limit of the set range of HP refrigeration is subject to the low water outlet control set under
SERVICE MENU, and the lower limit set for CO/FC refrigeration is subject to the minimum water
outlet set under the antifreeze ratio set under PROJECT MENU.
Snow-Blowing switch
Select “SNOW-BLOWING SWITCH” under “USER MENU” page and press “ ”. Display as follows:

15
Press “ ” and “ ” to select “YES” or “NO” and press “ ” to conrm. “YES” means the function
is valid, “NO” means invalid.
Note:Some models do not have this function. Please refer to the instructions of the outdoor
machine for whether they have anti-snow control function.
Silent mode:
Select “SILENT SWITCH” and press “ ”. Display as follows:
Press “ ” and “ ” to select “SELECT SILENT”, press “ ” or “ ” to select the mode you need
(7 types: NIGHT SILENT1-4, STANDARD, SILENT and SUPER SILENT), and press “ ” to
save. Users can check whether it is the mode they want here and press “ ” to back if there is
no problem. Once the silent mode turned on, in homepage light up.
Note：Night Silent1-4 is only available for MC-SU **-RN8L-B series models.
DHW SWITCH
Press “ ” and “ ” to select “DHW SWITCH” under “USER MENU” page and press “ ”.
Display as follows:
6/10 h
6/12 h
8/10 h
8/12 h

16
Only when DHW SWITCH selects YES, the following can be set.
Note：DHW SWITCH is only available for custom made DHW models.
Water Coil Control
Press “ ” and “ ” to select “WATER COIL CONTROL” and press “ ”. Display as follows:
Press “ ” and “ ” to switch between SELECT ADDRESS, DHW SWITCH and DHW FIRST. Then
press “ ” or “ ” to adjust parameters.
Press “ ” and “ ” to select “COIL CONTROL” and press “ ” or “ ” to select control mode:
AUTO (automatically control), MANUALON (with water coil), MANUALOFF (without water coil).
Press “ ” to save. Press “ ” to exit this page.
Note：Water Coil Control is only applicable to FC models.
4.3.6.2 SERVICE MENU SETTING
Password input: Please contact us
Select “SERVICE MENU” and press “ ”. The screen prompts for a password, as shown in the
gure below: