Romstal KJRP-86A/BMFNKD-E Operating instructions

INSTALLATION
& OWNER’S MANUAL
Thank you very much for purchasing our product.
Before using your unit, please read this manual carefully and keep it for future reference.
Wired Controller
MODEL:KJRP-86A/BMFNKD-E
KJRP-86I/MFK-E

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 wired controller
please read this manual carefully before using the unit.
For convenience of future reference, keep this manual after
reading it.

CONTENTS
Quick Operation Process
Features
Main Parameters
Overview
Basic Setting
Fan Speed Setting
Timer Setting
Child Lock Setting
Indoor Temperature Display
Project Commissioning
Installation
2
101
01
302
06
07
07
08
13
8
7
9
10
11
4
5
6
03
04
05

01
1 Quick Operation Process
Timer function:
ECO function:
1.1 Auxiliary function operation
Mode Fan speedOn/Off switch
Timing
Adjust temperature
Adjust time
Enable the ECO mode
Press to confirm timing
Press and hold for 3s to cancel
the timing
2 Features
Modbus Child lock
Modbus
Press and hold for 2s
(Not supported if
non-networked)
Electric auxiliary
heating mode
(Not supported if
non-networked)
Timer
function
ECO
setting

02
3 Main Parameters
Model
Temperature limit
Humidity
Rated Current
Rated voltage 220-240V~
, 50/60Hz
Networked: KJRP-86A/BMFNKD-E
Non-networked: KJRP-86I/MFK-E
-15°C to 43°C
≤RH90 %
CAUTION
● Entrust a qualified local technician to perform installation.
The user must not install the unit. The unit must be installed
by a professional technician.
● Before cleaning or maintenance, ensure the power supply
is cut off. Do not use water for washing to prevent electric
shocks.
● Do not operate with wet hands to avoid electric shocks.
● Do not use pesticides, disinfectants, or flammable directly
on the wired controller as they may damage the device or
cause fires.
● Do not try to remove the display panel with your bare hands
to avoid electric shocks.
Inductive load:
max. 0.9A /output, total: max. 1A, PF=0.93
Substantially resistive load:
max. 1A /output, total: max. 1A
Degree of pollution 2
Action Type 1B.U

4 Overview
On/OffFan speed
/ECO
Adjustment
button
TimingMode
ECO
display
Timer
display
Fan speed display
Operating
indicator
03
Operating
mode display
Not supported
if non-networke

1 On/Off
2 Mode
selection
The icon is displayed when the air conditioner is off.
Scenario Mode switch
Two-pipe cooling Cool
Cool
Cool
Cool
Cool
Cool
Fan
Fan
Fan
Fan
Fan
Fan
Two-pipe cooling
and heating
Heat
Heat
Heat
Two-pipe heating
+ Auxiliary electric heater
Four-pipe
Press to change the operating mode according to the order
shown below:
Two-pipe cooling and heating scenario is set before delivery
from factory by default. The scenario can be changed based
on the parameter settings according to the actual need.
Only two-pipe cooling and two-pipe cooling and heating modes
are supported if non-networked.
Press . The operating status LED turns on and the air
conditioner starts operating;
Press again. The operating status LED turns off and the air
conditioner stops operating.
5 Basic Setting
04
Two-pipe cooling +
Auxiliary electric heater
Two-pipe cooling and
heating + Auxiliary
electric heater
Auxiliary
electric heater
Auxiliary
electric heater
Heat + Auxiliary
electric heater
Auxiliary
electric heater
Heat + Auxiliary
electric heater

CAUTION
● After the fan speed is set, it takes time for the air
conditioner to respond. It is normal if the air conditioner
does not respond to the setting immediately.
1 Adjust fan
speed
Press to adjust the fan speed, which can be set to High,
Normal, Low and Auto.
3 Temperature
setting
Press and hold bottom for 2s to enable ECO mode.
Cooling ECO: 26℃, low fan speed;
Fan ECO: low fan speed;
Heating ECO: 18℃, low fan speed;
Auxiliary electric heater ECO: 18℃, low fan speed;
Heating + Auxiliary electric heater ECO: 18℃, low fan speed
4 ECO setting
Except in the Fan mode, press or to adjust the set
temperature indoors. Press and hold the button to
increase or decrease the set temperature continuously.
6 Fan Speed Setting
05

CAUTION
● Timed Off can be set when the air conditioner is on and
Timed On can be set when the air conditioner is off.
7 Timer Setting
1 Timed On setting:
2 Timed Off setting:
Press and hold Timer for 3s or set the timer to 0.0 to cancel timing.
3 Cancel timing:
Press and hold to cancel Press and hold to cancel
Press and hold to cancelPress and hold to cancel
Press or switch
off the screen to
confirm the timing
Press or switch
off the screen to
confirm the timing
06

● The indoor temperature is displayed when the screen is off.
9 Indoor Temperature Display
1 Enable child lock:
2 Disable child lock
Press and hold the two
buttons for 1.5s Enable child lock
Press and hold the two
buttons for 1.5s Disable child lock
The wired controller doesn't
respond when buttons are
pressed and flashes.
8 Child Lock Setting
07

10 Project Commissioning
10.1 Restore Factory Default Settings
08
10.2 Error Display
10.3 Parameter Settings of the Temperature Controller
● Entrust a qualified local technician to perform installation.
The user must not install the unit. The unit must be installed
by a professional technician.
● Before cleaning or maintenance, ensure the power supply
is cut off. Do not use water for washing to prevent electric
shocks.
● Do not operate with wet hands to avoid electric shocks.
● Do not use pesticides, disinfectants, or flammable directly
on the wired controller as they may damage the device or
cause fires.
● Do not try to remove the display panel with your bare hands
to avoid electric shocks.
● Touch and hold , and at the same time for 5s, and the wired
controller will restart with its parameters restored to the factory settings.
● When the sensor fails, the LCD displays the error code E1 in the
Temperature Setting display area;
● In the Parameter Settings interface, the LCD displays the icon when
Modbus communication fails. It always displays if non-networked;
● Notify the distributor of the error code. Do not disassemble, modify or
repair the air conditioner without authorization.
● Parameters can be set when the unit is on or off.
● Touch and hold and for 3s to enter the parameter settings
interface.
● After entering the page for parameter settings, C0 is displayed in the
temperature display zone. Press and to switch over to Parameter
Code; after selecting Parameter Code, press to enter the specific
parameter settings. Press and to set parameters. Press to
save the parameters. Press to exit the parameters without saving
parameters.
● If no operation is made in 60s, the page will save your parameters and
close.
● When it is in the parameter settings page, the wired controller cannot
communicate with Modbus.

Parameter
Code
Parameter
Name Parameter Range Default Value Remarks
Stepping 0.5°C /1°F
01
00
26°
00
01-32
00:Two-pipe cooling and heating
01:Two-pipe cooling
02:Two-pipe cooling
+Auxiliary electric heater
03:Two-pipe heating
+Auxiliary electric heater
04:Two-pipe cooling and heating
+Auxiliary electric heater
05:Four-pipe
17°C to 30°C / 62°F to 86°F
17°C to 30°C / 62°F to 86°F
0°C to 20°C / 32°F to 68°F
C / Stepping 0.5°C /1°F
Stepping 0.5°C /1°F
5°C / 41° F
79° F
18° C / 64° F
00:Off 01:Start
Wired controller
address
Two-pipe/four-pipe
selection
ECO cooling temperature
setting
ECO heating temperature
setting
Anti-freezing protection
Anti-freeze temperature
setting
C0
C1
C2
C3
C4
C5
01
00:°C 01:°F 00
00:4800 01:9600Baud rate setting
Celsius/Fahrenheit
C6
C7
01
00:Chinese 01:English 01
00:Off 01:OnButton backlight setting
Language
C8
C9
00:Always on 01:Always off 0
Cooling/Fan temperature
compensation
Fan always on/always off
(After setting temperature)
C10
C13
1, 2, 3 (°C) / 2, 4, 6 (°F) 1° C / 2°F
Temperature return
difference
C12
0° C / 0°F
0° C / 0°F
Heating/ Auxiliary electric
heater temperature
compensation
C11
Note: The “ ” indicates the function is not supported if non-networked.
09
Stepping 0.5°C /1°F-10°C to 10°C / -18°F to 18°F
-10°C to 10°C / -18°F to 18°F Stepping 0.5°C /1°F

10
10.4 Modbus
Transmission rate: 9600 bps; Data length: 8 bits; Stop bit: 1 bit;
Check bit: no check; Transmission code: hexadecimal value (MODBUS RTU mode);
Error detection: CRC-16 (MODBUS RTU mode);
MODBUS communication IP address of slave unit: 1-32;
Command = 03: Multi-register read instruction; Command = 06: Single register write
instruction;
Command = 16: Multi-register write instruction.
Parameter
Code
Parameter
Name Parameter Range Default Value Remarks
00
00: 0 second
05: 5 seconds
10: 10 seconds
15: 15 seconds
30: 30 seconds
60: 60 seconds
90: 90 seconds
Duration of preventing
cold wind
C14
Read onlyVersionC15
Command Parameter Name Parameter Range
0
4
1~255
Celsius: -50~500; Fahrenheit: 23~122
17°~30°C / 41°F~95°F
Room temperature
03 1
2
3
4
5
6
03
03/06/16
03/06/16
03/06/16
03/06/16
Current ON/OFF mode
Current setting
temperature
System mode setting
Set fan speed
0: OFF; 1: ON
1: Low; 2: Medium; 3: High; 4: Auto
Register
Address
Default
Value
Thermostat program
version No.
0: Ventilation; 1: Cooling; 2: Heating;
3: Auxiliary electric heater;
4: Heating + Auxiliary electric heater

11
Command Parameter Name Parameter Range
-10C°~10°C/ -18°F~18°F
7
9
0
00:°C degrees Celsius
01:°F degrees Fahrenheit 0
03/06/16
03/06/16
03/06/16
0C° / 0°F
8
Fan always on
/always off (After
setting temperature)
Select temperature
unit
Cooling/Fan
temperature
compensation
00: OFF; 01: ON
Register
Address
Default
Value
03/06/16
0C° / 0°F
-10C°~10°C/ -18°F~18°F
10
Heating/ Auxiliary
electric heater
temperature
compensation
03/06/16
0
00: 0 second
05: 5 seconds
10: 10 seconds
15: 15 seconds
30: 30 seconds
60: 60 seconds
90: 90 seconds
11
Duration of preventing
cold wind
01-32
03/06/16
1C° / 2°F
1、2、3 C（°C）/ 2、4、6（°F）
12
Communication
IP address (Modbus)
Temperature return
difference
13
1
03/06/16
5°C / 41°F
03/06/16
03/06/16
03/06/16
0° ~20°C / 32°F~68°F
14
16
15
0
0
Centralized control
locking
00: OFF; 01: ON
00: OFF; 01: ON
Anti-freezing setting
temperature
Whether anti-freezing
protection is enabled

12
CAUTION
● The minimum interval of data packet is 100 ms. In case of
excessive data in a single data packet, adjust the time
interval appropriately.
● The numerical analysis method is different in different
temperature systems. At Celsius, the value of the register is
10 times the actual temperature. When setting the register
value, the input value should be an integer multiple of 5; In
Fahrenheit, the value of the register is equal to the actual
temperature, and there is no special provision for setting the
register value.
Command Parameter Name Parameter Range
0
0
03
03/06/16 17
18
System type
Restore factory
settings 0: General; 1: Restore factory settings
0
03 19
High fan speed
status 00: OFF; 01: ON
0
03 20
Medium fan
speed status 00: OFF; 01: ON
0
03 21
Low fan speed
status 00: OFF; 01: ON
0
03 22
Valve 1 status
Valve 2 status
00: OFF; 01: ON
0
03 23
00: OFF; 01: ON
Register
Address
Default
Value
00: Two-pipe cooling and heating
01: Two-pipe cooling
02: Two-pipe cooling +Electric auxiliary
heating
03: Two-pipe heating +Electric auxiliary
heating
04: Two-pipe cooling and heating
+Electric auxiliary heating
05: Four-pipe

13
11 Installation
11.1 Installation Precautions
● To ensure correct installation, read the "Installation" section of this
manual.
● The content provided here covers warnings, which contains important
information about safety that must be followed.
CAUTION
● Entrust the local distributor or local service agent to appoint
a qualified technician to perform installation. The user must
not install the unit.
● Do not disassemble and assemble the product without
permission.
● The wiring must be compatible with the wired controller
current.
● Use the specified cables, and do not place heavy object on
the wiring terminals.
CAUTION
● The default status of Valve1 and Valve 2 will depending on
the system state.

14
11.2 Installation Accessories
No.
1
2
3
4
Name
Wired controller
Philips head screw, M4×25
Installation & Owner’s Manual
Plastic support bar
Qty
1
2
1
2
Remarks
Used to install the wired controller on the
electrical box
Used to install the wired controller on the
electrical box
Please check that you have all the following parts.
Prepare the following parts in the field:
No.
1
2
3
4
Name
Installation box(cassette
type)
Shielded 3-core cable
Control cable (with the
null and live wires)
Small slotted screwdriver
Qty
1
1
1
1
Remarks
General specifications of the installation box,
which is embedded into the wall
RVVP-0.5 mm2×3, embedded into the wall
(Non-networked without preparetion)
1.5 mm2×7, embedded into the wall
Used to install the slotted head screws and remove
the bottom cover of the wired controller

15
11.3 Product Dimensions (mm)
28 Mounting hole: 60 9
86
86
UP
X
Y
E
A
B
GND
11.4 Installation Method
Screwdriver
rotation
direction
Slotted
screwdriver Buckle
1. Remove rear cover of the wired controller: insert a slotted-head screwdriver into the
bottom buckle of the wired controller, and rotate in the direction indicated to remove the
rear cover. Remove the flat cable connecting the front and rear PCBs and remove the
front cover of the wired controller.

16
Screw post of the installation
box (cassette type)
Use a cutting tool to adjust the lengths
of the two plastic support bars
2. Install support bars: Adjust the lengths of the two plastic support bars in the
accessories. Ensure that the rear cover of the wired controller stays level with the wall
when installed on the screw post of installation box (cassette type).
3. Wiring: Connect the cables according to the following wiring drawing
UP
X
Y
E
A
B
GND
Low Valve 1 Valve 2 Neutral wireMediumHighLive wire
485
communication
interface
(Not supported if
non-networked)
(Valve 2 is not
supported if
non-networked)

17
PROHIBIT
● This product must be installed by a specialized technician.
Do not connect cables when the unit is active.
● Do not connect the neatral and live wires to the X/Y/E ends.
Otherwise, the wired controller will be burnt.
WARNING
● Check the wiring before powering on the unit. Wrong wiring
may damage the wired controller.
Installation and Wiring diagram
L Hf Mf Lf
Fan
V1 V2 N
N
L
Valve
AC220V N
LAC220V
L Hf Mf Lf
Fan
V1 V2 N
Valve
On Off
Three-wire
ball valve
Normally
close valve
Two-pipe cooling/cooling and
heating (Networked)
Two-pipe cooling/cooling and heating
(Networked/Non-networked)