Jakka Control Kit 4 User manual

Manual
JAKKA Control Kit 4
Heat recovery unit controller
JAK-KA GROUP
novembar
2018
www.jakkagroup.com
J.8.Г

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Content
1
General
..............................
2
5
System Test
..............................
20
2
Control Functions
..............................
3
5.1
Modbus
..............................
20
2.1
Control modes
..............................
4
5.1.1
Labvision
..............................
20
2.1.1
Mode 1: FAN
..............................
4
5.1.2
Modbus tester production 06
..............................
21
2.1.1.1
Fan
..............................
4
5.1.3
Labvision
..............................
22
2.1.1.2
By-pass Valve
..............................
4
5.2
BMS
..............................
22
2.1.2
Mode 2: COOL
..............................
4
5.3
RC
..............................
23
2.1.2.1
Fan
..............................
4
5.4
Error
..............................
23
2.1.2.2
By-pass Valve
..............................
4
5.5
Bypass valve
..............................
23
2.1.3
Mode 3: HEAT
..............................
5
5.6
Fans EC and AC
..............................
23
2.1.3.1
Fan
..............................
5
5.7
Mode Fan
..............................
23
2.1.3.2
By-pass Valve
..............................
5
5.8
Mode COOL
..............................
24
2.1.3.3
Electrical heating elements
..............................
5
5.9
Mode HEAT
..............................
24
2.1.4
Mode 4: AUTO
..............................
6
5.9.1
Post purge
..............................
24
2.1.5
Mode 5: VOD
..............................
6
5.10
Mode AUTO
..............................
24
2.1.5.1
Fan
..............................
6
5.11
Mode VOD
..............................
24
2.1.5.2
By-pass Valve
..............................
6
5.12
Weekly Timer
..............................
25
2.2
BMS
..............................
6
6
Connections to the Senso
2.2.1
BMS
..............................
6
Argus 186 main board
..............................
26
2.2.2
BMS unit
..............................
6
6.1
PCB layout
..............................
26
2.2.3
Season select
..............................
6
6.2
Connection diagram
..............................
27
2.3
Filter check
..............................
6
6.3
Connector description
..............................
28
2.4
Modbus
..............................
6
2.4.1
Convert table for Lennox
..............................
7
2.4.2
Configuration line
..............................
8
2.4.3
Connection
..............................
8
2.4.4
Working with Modbus
..............................
9
2.4.4.1
Read Commando
..............................
9
2.4.4.2
Write Commando
..............................
9
2.4.5
Example Read
..............................
10
2.4.6
Example Write
..............................
10
2.5
System set-up
..............................
10
2.5.1
Fan speeds
..............................
10
2.5.2
Fan balancing
..............................
10
2.5.2.1
Conditions
..............................
11
2.5.3
Parameters
..............................
11
3
Remote Control
..............................
12
3.1.1
LCD functions
..............................
13
3.1.2
24h clock
..............................
13
3.1.3
Timer function
..............................
13
3.1.3.1
Examples for monday
..............................
14
3.1.4
Errors
..............................
15
4
Labvision
..............................
16
4.1
Program E2Prom
..............................
16
4.2
RC
..............................
17
4.3
MN
..............................
18
4.4
MN/RC modbus
..............................
19
4.5
RC display
..............................
19

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1 General
The control has the following specifications
Power Supply 230VAC (-15%, +10%)
50Hz (± 2%)
Ambient
Temperature
Functional
Storage
0 to +60C (32°F to 140°F (Peak temperatures, not
continuous) (-25 to +75°C) (-13°F to 167°F)
Humidity 93% RV at 25°C (77°F)
Fuses 230V mains T.B.D
Protection According to
EN60529
IP00; Protection against electrical shock must be
guaranteed by the appliance manufacturer.
Dimensions l × w × h 205mm×144mm×38mm (8,07’×5.67’×1,50’)
Weight 530 g (18,7oz)
Connections See chapter 4
Position No preference

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2 Control Functions
By-pass
The heat recovery unit is equipped with two sensors T1_indoor & T2_outdoor.
Sensors
T1 indoor sensor (NTC 12k@25°C β=3740)
This sensor measures the returned air temperature from the room
Set point
T3
room set point temperature
Fans
Exhaust fan, Supply fan
There are three ways to control heat recovery unit
1. Modbus
2. Remote Control
3. Remote Control connected to Building Manage System
outdoor sensor (NTC 12k@25°C β=3740)
This sensor measures the fresh air temperature from outside
T2

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2.1 Control modes
The control mode can be changed by pressing the MODE button (one or multiple times) on the
186RC. The following operational modes can be selected:
FAN
COOL
HEAT
AUTO
VOD
The next paragraphs are describing the different modes.
2.1.1 Mode 1: FAN
In this mode the unit will operate without checking the return air (T1_indoor) or outdoor temperature
(T2_outdoor) sensors.
2.1.1.1 Fan
Fan speed default is medium if Mode is changed but can be changed with FAN button. The FAN button can select
High, Med and Low speed for the separated Supply fan and Exhaust fan. The values are not settable.
2.1.1.2 By-pass Valve
By-pass valve is always closed.
2.1.2 Mode 2: COOL
During the summer season the COOL mode either can be manually selected with the remote control or automatically
controlled via the BMS (Building Management System) inputs When BMS J5(5-13) is ON (closed) and season select
input J5(1-9) is closed, the mode will be COOL. The BMS input has priority over the remote control setting.
2.1.2.1 Fan
Fan speed default is medium if Mode is changed but can be changed with FAN button. The FAN button can select
High, Med and Low speed for the separated Supply fan and Exhaust fan. The values are not settable.
2.1.2.2 By-pass Valve
In COOL mode the damper valve will be controlled in accordance with following conditions.
temp_MIN_Outdoor_Cooling = 10°C
temp_MAX_Outdoor_Cooling = 32°C
By-pass valve close conditions:
1. T2_outdoor > T1_indoor and
T3_setpoint < T1_indoor
2. and
and
T2_outdoor > T1_indoor
T3_setpoint > T1_indoor
T2_outdoor > 32°C
3. and
and
T2_outdoor < T1_indoor
T3_setpoint < T1_indoor
T2_outdoor < 10°C
4. andT2_outdoor < T1_indoor
T3_setpoint > T1_indoor
By-pass valve open conditions:
1. T2_outdoor > T1_indoor +3 and
T3_setpoint > T1_indoor -2
T2_outdoor < 32°C
2. and
and
T2_outdoor < T1_indoor -3
T3_setpoint < T1_indoor -2
T2_outdoor > 10°C

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2.1.3.3 Electrical heating elements
Maximal 3 electrical heating elements can be connected.
Configuration 1: 1,2 or 3 heating elements after the WTU unit, in the supply air to room duct. In this configuration
the heating elements are switched on basis of T1_indoor temperature and T3_setpoint.
Configuration 2: 1 heating element before the WTU unit in the fresh air inlet duct. 2 or 3 heating elements after the
WTU unit, in the supply air to room duct. In this configuration the heating elements 2 and 3 are
switched on basis of
T4_Room_sensor temperature and T3_setpoint. Heating element 1 is switched on basis of
T2_sensor <= -7.
The algorithm for the 3 electrical heaters is how higher the delta temperature how more power is selected.
For example Delta temperature from 10 degrees is full power.
Under table shows how the heaters are turned on and off with the same KW.
For example Heater 1 = 3 KW, Heater 2 = 3 KW, Heater 3 = 3 KW
Under table shows how the heaters are turned on and off with the different KW.
For example Heater 1 = 1 KW, Heater 2 = 2 KW, Heater 3 = 5 KW
Heater configuration is written in EEPROM (§2.5.3 Parameters).
Degrees Degrees Heater 1 Heater 2 Heater 3 kWatt
0 3,3 X - - 3
3,3 6,6 X X - 6
6,6 >10 X X X 9
Degrees Degrees Heater 1 Heater 2 Heater 3 kWatt
0 1,4 X - - 1
1,4 2,8 - X - 2
2,8 4,2 X X - 3
4,2 5,7 - - X 5
5,7 7,1 X - X 6
7,1 8,5 - X X 7
8,5 >10 X X X 8
2.1.3 Mode 3: HEAT
2.1.3.1 Fan
Fan speed default is medium if Mode is changed but can be changed with FAN button. The FAN button can select High,
Med and Low speed for the separated Supply fan and Exhaust fan. The values are not settable.
2.1.3.2 By-pass Valve
In HEAT mode the damper valve will be controlled in accordance with following conditions.
temp_MIN_Outdoor_Heating = 15°C
temp_MIN_Outdoor_Heating = 35°C
During the summer season the HEAT mode either can be manually selected with the remote control or automatically
controlled via the BMS (Building Management System) inputs When BMS J5(5-13) is ON (closed) and season select
input J5(1-9) is open, the mode will be HEAT. The BMS input has priority over the remote control setting.
By-pass valve close conditions:
1. T2_outdoor < T1_indoor and
T3_setpoint < T1_indoor and
T2_outdoor <15°C
2. T2_outdoor > T1_indoor and
T3_setpoint > T1_indoor and
T2_outdoor >35°C
3. T2_outdoor < T1_indoor and
T3_setpoint > T1_indoor
4. T2_outdoor > T1_indoor and
T3_setpoint < T1_indoor
By-pass valve open conditions:
1. T2_outdoor < T1_indoor +3 and
T3_setpoint < T1_indoor +2 and
T2_outdoor >15°C
2. T2_outdoor > T1_indoor -3 and
T3_setpoint > T1_indoor -2 and
T2_outdoor <35°C

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2.1.5.1 Fan
Fan speed controlled with VOD and cannot be controlled with FAN button.
2.1.5.2 By-pass Valve
By-pass valve is always closed.
2.2 BMS
Building Manage System can be set on the Main board. If the BMS is on the Remote Controller is not controlling the
heat recovery unit. If the BMS was active and the heater(s) were on, the heat recovery unit fans stay on for 120 seconds
when the heat recovey unit is switch off.
The BMS uses 3 inputs from the Main board.
2.2.1 BMS
The BMS function dis (en) - abled the remote control controlling the temperature.
2.2.2 BMS unit
The BMS unit on and off function turns the unit on and off. The fans are going off in off state.
2.2.3 Season select
The BMS uses the input for the deferens between summer 2.1.2 Mode 2: COOL and winter 2.1.3 Mode 3: H.
2.3 Filter check
On the Remote Controle the filter check is displayed if filter time over is. Filter timer is in 10 hours
and default 1200 hours. The filter timer is deceased if the fans are on.
2.4 Modbus
With the communication protocol MODBUS you can connect a HMI. The default setting for the Modbus (slave) address
is 1. The address setting resides in the e2prom and can be changed if required. This can be done with the help of Labvision
via the Senso Argus link connection Modbus communicates using words (the contents of 16bit holding registers). The
data that is offered by the 186MN is organised as a list of bytes. Read/Write address (of the holding registers).
If bit Write disable is set then MN is communicating with RC. If bit Master is set the RC cannot be controlled by hand or
BMS. If bit Master is reset the Modbus can read all data from the system.
In the next paragraph is a description of Modbus configuration and architecture and example for read and write.
This HMI uses the following commando’s in table on next page.
2.1.4 Mode 4: AUTO
In the auto mode the control selects automatically, dependent on the outdoor temperature, if it is summer or winter season.
In accordance with the selected season the unit will work in cool or heat mode as described in previous paragraphs.
Summer season is selected when T2_outdoor > season_auto_switch_temp+ season_ hysterese_up
Winter season is selected when T2_outdoor < season_auto_switch_temp - season_hysterese_down
2.1.5 Mode 5: VOD
When VOD (Ventilation On Demand) is selected the fan speed is controlled by the analog 0.10V input signal. At 0..1V
the fans are running at minimum VOD speed and at 9..10V the fans are running at maximum speed for VOD. In between
the fan speed is linear controlled.
The min and max fan speeds for VOD are adjustable and are always within the appliance min/max fan speeds.
The min/max fan speed range for VOD is divided in three smaller ranges. When the actual fan speed is within the lowest
range, the display shows only one fan bar, etc.

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nr Read
Write
bits Parameter Default Range
0 0-1
0 0-4
1 1-3
1.1 R/W 7 Run
1.1 R/W
6-4 Operation Modes, fan, heat, cool, auto,VOD
1.1 R/W
3-2 Exhaust fan speed (low,med,high)
1.1 R/W
1-0 Supply fan speed (low,med,high) 1 1-3
Reserved - 1.2
R/W
7
1.2
R/W
6 Master 0 0-1
1.2 R 5 By-pass 0 0-1
1.2 R/W 4-0 Set point + 1 16 16-32
2.3 R/W 7-0 filter time(1 = 10 min) 12 0-2550
2.4 R/W 7-6 Reserved -
2.4 R/W 5 Set clock with on time 0 0-1
2.4 R/W 4 Reserved -
2.4 R/W 3 block 1 or 2 0 0-1
2.4 R/W 2-0 day 1-7 ** 1 1-7
-1 --.--,0-23 3.5 R/W 7-0 On time in hours
3.6 R/W
7-0 On time in minutes -1 --.--,0-59
-1 --.--,0-23 4.7 R/W 7-0 Off time in hours
4.8 R/W
7-0 Off time in minutes -1 --.--,0-59
5.9 R 7 Write disable 0 0-1
5.9 R 6-0 Errors 0 0-126
5.A R 7-0 Temp - -30-80
(*)
Depending on the type of Modbus software used, the holding register addressing range starts either at 0x0000 or at 0x0001. If
your Modbus software starts addressing from 0x0000 you can use the holding register addresses shown in the table above. If your
Modbus software addressing range starts at 0x0001 then add 1 to the holding register addresses listed in the table above.
This is also true for the various test tools available for Modbus…
Tabdial32 starts at 0x0000. ( http://www.leroy-automation.com/free%20softwares.html ) The Tabdial32 tool does not
support the write single holding register command.
Modbus Tester ( http://www.modbus.pl/downloads.htm ) starts at 0x0001.
(**) If 2.4 byte is written the Remote control writes the 3 and 4 nr bytes also in his memory of the display.
2.4.1 Convert table for Lennox
CAS Holding
register
Access
Heat recovery Unit Basic
Parameter name Conversion Range
R W
101 100 0064 X
102 101 0065 X
103 102 0066 X X
104 103 0067 X X
105 104 0068 X
106 105 0069 X
107 106 006A X X
108 107 006B X X V
109 108 006C X X V
110 109 006D X X V
111 110 006E X
112 111 006F X V
113 112 0070 X V
114 113 0071 X
115 114 0072 X
116 115 0073 X
117 116 0074 X
118 117 0075 X X
119 118 0076 X X
120 119 0077 X X
121 120 0078 X X V
122 121 0079 X X V
123 122 007A X X V
124 123 007B X X V
Bit0: °C / °F, Bit1: bar / psi
Reserved (186)
Stop, Run
No/Yes
See error list
reserved
Operation Modes: fan, heat, cool, auto, VOD
16 - 32 °C
Low, Med, High(1,2,3)
Low, Med, High(1,2,3)
-+xxx.xx / 100
-+xxx.xx / 100
-+xxx.xx / 100
Output 0 -1
Output 0 - 1
Output 0 - 1
0..100%
x10 minutes
0-1
1-7 (Monday = 1)
--.--, 00 – 23 hours
--.--, 00 – 59 minutes
--.--, 00 – 23 hours
--.--, 00 – 59 minutes
.. .. ..
200 199 00C7
Modbus Units
Device type
State
Master is Modbus
Error Code
Warning Code
Status
Set point
Fan speed Exhaust
Fan speed Supply
Room Temperature
Indoor sensor
Outdoor sensor
BMS
BMS unit
Season
Bypass Valve (relay)
Filter time
Block 1 or 2
Day 1-7
On time in hours
On time in minutes
Off time in hours
Off time in minutes
reserved
reserved

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2.4.2 Configuration line
The table below summarises the Modbus configuration details;
Modbus configuration
Protocol Modbus RTU
Default slave address 0x01 (settable with LabVision)
Supported Modbus commands Read Holding registers (0x03)
(*1)
Write single holding register (0x06)
Baud rate 9600bps
Data Length 8
Parity None
Stop Bits 1
Physical layer RS485 (two wire)
Modbus 1 A connection J16-4
Modbus 1 B connection J16-8
Time out 60 seconds
(*1)
Because of limited buffer size in the 186MN a maximum of 8 registers, at one time (per frame) can be read.
2.4.3 Connection
Senso Argus Link in red has a
speed of 1200 Baud and is
connected between main board
and remote control.
Modbus in blue
J16-4 A to T+, pink
J16-8 B to T-
has a speed of 9600
Baud and is connected between
main board and HMI.
IMPORTANT is to remember
Senso Argus Link has to
communicate with main board to
control the system. The HMI has to send his data not faster as 1200 baud – time to assimilate the
send data – time to control system.
MOD
FAN
COOL
HEAT
AUTO
VOD
FAN
HIGH
MED
LOW
EXHAUST FAN
MON TUE WED THU FRI SAT SUN
SET
12.0 25
º
SET
BY – PASS
FUNCTION
FILTER
CHECK
RUN/STO
MODE
HRV
SELECT
FAN SPEED TIMER RESET
DAY SCHEDULE OK

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2.4.4 Working with Modbus
The Modbus communication goes from the Main (MN) board, MN is slave. The data goes from MN to the Remote
Control (RC) with communication protocol Senso Argus link. The RC is master and the MN is slave. The Modbus
is 8 times faster as the Senso Argus Link communication. First the data has to be send to RC and back before the
Modbus master can send the next command. Modbus does not communicate with MN after 60 seconds the RC is
going out and Modbus is no longer master.
The figure is showing the communication between RC and MN with Modbus and Senso Argus Link. The blue line
is read communication and the red is write communication beginning with the Modbus packets. In the next
paragraphs the packets are explained.
2.4.4.1 Read Commando
The table on the right shows an example of a Read frame.
MN is receiving Read commando 03
MN asks data of Read buffer
RC sends Write module data to Read Buffer of MN
2.4.4.2 Write Commando
The table on the right shows an example of a Write frame.
MN is receiving Write commando 06
MN Write buffer receives data
MN Set write disable bit in MN Write buffer
MN Set write disable bit in MN Read buffer
RC reads MN Write buffer in Read module
RC Write module reads Buffer
RC Reset write disable bit in Write buffer
RC Write module sends to MN Read buffer
MN Reset write disable bit in MN Write buffer
The packets can be written if:
Data byte is with in the right range
The write disable bit zero is.
Bytes Description
01 # slave
03 commando
00 start addr H
00 start addr L
00 # data H
01 # data L
84 Checksum H
0A Checksum L
Bytes Description
01 # slave
06 commando
00 start addr H
00 start addr L
00 # data H
00 # data L
89 Checksum H
CA Checksum L
MODBUS
MASTER
READ
BUFFER WRITE
WRITE
BUFFER
READ
BUFFER
ARGUS
LINK
M
F
A
N
C
F
A
N
EXHAUST
S12
º
BY FI
RU
M
H
SEL
FAN TI R
DSCH O

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2.4.5 Example Read
nr Read
Write
bits Parameter Default Range
5.9 R 7 Write disable 0 0-1
5.9 R 6-0 Errors 0 0-126
5.A R 7-0 Temp - -30-80
2.4.6 Example Write
nr Read
Write
bits Parameter Default Range
0 0-1
0 0-5
1 1-3
1.1 R/W 7 Run
1.1 R/W
6-4 Operation Modes, fan, heat, cool, auto,VOD
1.1 R/W
3-2 Exhaust fan speed (low,med,high)
1.1 R/W
1-0 Supply fan speed (low,med,high) 1 1-3
reserved - 1.2
R/W
7
1.2
R/W
6 Master is Modbus 0 0-1
1.2 R 5 By-pass 0 0-1
1.2 R/W 4-0 Set point 16 16-32
Bytes Description Bits
01 # slave 0000.0001
03
00
00
commando 0000.0003
start addr H 0000.0000
start addr L 0000.0005
00 # data H WEEE.EEEE
01 # data L TTTT.TTTT
?? Checksum H
?? Checksum L
Bytes Description Bits
01 # slave 0000.0001
06
00
01
commando 0000.0006
start addr H 0000.0000
start addr L 0000.0001
00 # data H ROOO.EESS
00 # data L rMBS.SSSS
?? Checksum H
?? Checksum L
2.5 System set-up
2.5.1 Fan speeds
The control works with two different types of min/max limits:
1. Absolute fan speed min/max settings
Settings are factory set and cannot be changed. The fans are always operating within these limits
2. VOD fan min/max settings
These min/max settings are applicable when the unit works in VOD mode, but are always within the absolute
limits (no. 1). The limits will be corrected with the fan balancing offset (§ 2.5.2) if not zero.
2.5.2 Fan balancing
Fan balancing can be used to adjust the supply and exhaust air ratio. This can be done by changing
the parameter offset_supply_exhaust_air.
In case of a negative offset the exhaust fan speed is below the supply fan speed
In case of a positive offset the exhaust fan speed is above the supply fan speed.
When the offset is 0 the exhaust and supply fan speed is equal.

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Negative Offset Positive Offset
When VOD (§ 2.1.5) is selected the target fan speed applies to supply fan and is used as reference to adjust the exhaust
fan with an offset. The offset also applies to the minimum and maximum fan speed settings in such a way that always
an offset remains,
2.5.2.1 Conditions
There are several conditions for the fan balancing:
Exhaust_Fan_MAX > 90
Exhaust_Fan_MAX
Exhaust_Fan_MAX
Exhaust_Fan_MIN
Exhaust_Fan_MIN
Supply_Fan_MAX
Supply_Fan_MAX
Supply_Fan_MIN
Supply_Fan_MIN
Supply_Fan_MIN
<= 255
>= 90
<= 255
< Exhaust_Fan_MAX
> 90
<= 255
>= 90
< 255
< Supply_Fan_MAX
VOD_MAX_Fan_speed <= Exhaust_Fan_MAX
VOD_MIN_Fan_speed >= Exhaust_Fan_MIN
SUPPLY FAN EXHAUST FAN
HI
MED
LOW
HI
MED
LOW
FAN SPEED
OFFSET
SUPPLY FAN EXHAUST FAN
HI
MED
LOW
HI
MED
LOW
FAN SPEED
OFFSET
Supply Fan is adjusted because the limit of the fan MAX and MIN is reaches.
Negative Offset is Supply Fan LOW = Exhaust Fan + Offset
Positive Offset is Supply Fan HI = Exhaust Fan - Offset
The fan settings for LOW, MED, HI speed are applicable for the supply fan speed, in case of an offset the supply speed
is used as reference to correct the exhaust fan speed.
2.5.3 Parameters
Parameter Unit Default Range Reference §
Room_Setpoint ºC 20 10..40 2.1.2
Exhaust_Fan 170 90..255 2.1.1
Exhaust_Fan_MIN 90 90..255 2.1.1
Exhaust_Fan_MED 170 90..255 2.1.1
Exhaust_Fan_MAX 255 90..255 2.1.1
Supply_Fan 170 90..255 2.1.1
Supply_Fan_MIN 90 90..255 2.1.1
Supply_Fan_MED 170 90..255 2.1.1
Supply_Fan_MAX 255 90..255 2.1.1
Operation_Mode 0 0..5 2.1
Temp_MAX_Outdoor_Cooling ºC 32 10..40 2.1.2
Temp_MIN_Outdoor_Cooling ºC 10 10..40 2.1.2
Temp_MAX_Outdoor_Heater ºC 35 10..40 2.1.3
Temp_MIN_Outdoor_Heater ºC 15 10..40 2.1.3
Temp_AUTO_Season ºC 25 10..40 2.1.4
Temp_HYST_UP_Season ºC 0 10..40 2.1.4
Temp_HYST_DOWN_Season ºC 4 10..40 2.1.4
Heater1_config KW 1 1..255 2.1.3.3
Heater2_config KW 2 1..255 2.1.3.3
Heater3_config KW 5 1..255 2.1.3.3
Heaters_config 1 0..1 2.1.3.3
Heaters_Hysterese 1 1..2 2.1.3.3
VOD_MIN_Fan_speed 250 90..255 2.1.5
VOD_MAX_Fan_speed 100 90..255 2.1.5
Offset_Supply_Exhaust_Air 0 -10..10 2.5.2
BMS heater post purge time second 120 10-255 2.2
Filter_check_time hours 1200 10..255 2.3

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3 Remote Control
The buttons and display have a short description. In the further paragraphs an explanation of LCD screen, Timer function
and Errors are described.
RUN/STOP When the backlight and led is off, press the button once to turn the unit on.
When the unit is “on” press RUN/STOP 2 seconds to switch it off.
The button can be pushed to turn the Remote Control on. Button doesn’t react if BMS is active. All
others buttons work if the on RUN led on or timer mode is active. Then the LCD is blinking the word
‘mode’ in left upper corner.
Increase/decrease set point room temperature (SET TEMP is on)
MODE Press to select the listed modes of operation (FAN, COOL, HEAT, AUTO, VOD). Every time a button
is pressed a next mode lights up. After a 5 seconds delay the mode will be activated. The text MODE on
display is always visible.
FAN SPEED With this button the fan speed of the exhaust and supply fan can be changed.
Pressing once: text FAN lights up. “EXHAUST FAN” and current fan
speed (text) starts blinking
Use buttons to select fan speed (high, med, low)
Press OK to confirm
“SUPPLY FAN” and current fan speed (text) starts blinking
Use buttons to select fan speed (high, med, low)
Press OK to confirm
MODE
FAN
COOL
HEAT
AUTO
VOD
FAN
HIGH
MED
LOW
EXHAUST FAN SUPPLY FAN
MON TUE WED THU FRI SAT
SET
12.00
25
º C
SET TEMP
BY –
PASS
FILTER
CHECK
RUN/STOP
MODE
HRV
SELECT
FAN SPEED TIMER RESET
DAY SCHEDULE OK
HRV
TIMER
Bypass on when possible
Press 3 seconds to SET the timer function.
TIMER +
MODE
Press 2 seconds both buttons the timer is now active. The display shows
‘MODE’ is blinking in de left upper corner.
TIMER + Press 2 seconds both buttons the timer is now active. The display shows
FAN SPEED ‘addr’ is showing in time position, on position temp the address of Modbus is
showing. ‘- -‘ means the display is retrieving the Modbus address.
RESET Press to reset filter check when display shows FILTER CHECK.

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3.1.1 LCD functions
3.1.2 24h clock
The remote control has an integrated 24h clock which is factory set at UTC+2 time. The internal
battery supplies the clock when the remote is not connected.
Change time
Press OK button for 3 seconds, time starts blinking
Change time with
buttons. Time starts to change faster are pressed for a while.
Press OK to confirm, current day starts blinking
Change day with
buttons.
Press OK to confirm
Press RUN/STOP to stop immediately and go back to normal operation
MODE
FAN
COOL
HEAT
AUTO
VOD
EXHAUST FAN SUPPLY FAN
MON TUE WED THU FRI SAT SUN
SET
12.00
25
º C
SET TEMP
BY – PASS
FUNCTION
FILTER
CHECK
FAN
HIGH
MED
LOW
Sho ws active mode
of op
eration
Shows actual fan speed of
supply and exhaust fan
Lights up when By-
Pass is open
Lights up when filters
should be checked
Only visible when
changing fan speed
Shows
current day
Actual time or
timer blocks
Actual room temp
or set point
When blinking
Timer
is active
3.1.3 Timer function
The timer function can be used to program block times in which the unit is operating. Outside the
blocks the unit is off.
The timer function makes it possible to program 2 on/off times per day.
Program Timer Blocks
Press TIMER button for 3 seconds, day MON starts blinking, all other LCD segments are off
Press DAY button (one or more times) to select the day to be set
Press OK to confirm, the selected day is permanent on
The temp display shows which means timer block 1 “on” time can be programmed
Adjust the “on” time with the DAY and SCHEDULE buttons, press OK to confirm
Next the timer block 1 “off” time can be programmed, the temp display shows
Again adjust the “off” time with the DAY and SCHEDULE buttons, press OK to confirm
Next the timer block 2 “on” time can be programmed, the temp display shows
Adjust the “on” time with the DAY and SCHEDULE buttons, press OK to confirm
The temp display shows which means timer block 2 “off” time can be programmed
Again adjust the “off” time with the DAY and SCHEDULE buttons, press OK to confirm
Now the next day starts blinking and can be programmed accordingly as described above.
To exit the programming mode press OK for 3 second or wait 1 minute

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Additional features
A specific “on” or “off” time can be deleted by pressing RESET when programming the
time block. If deleted the time display shows:
and the time is not used.
When for example the unit is “on” on Monday and no “off” time is programmed that day
anymore, the unit remains “on” until the first “off” time is reached the next day(s).The
same sequence is used when the unit would be “off”
3.1.3.1 Examples for monday
Example 1 – normal blocks
Time display Block
1
st
“on” time - unit starts on Monday at 8:00
1
st
“off” time - unit stops on Monday at 12:00
2
nd
“on” time - unit starts on Monday at 14:00
2
nd
“off” time - unit stops on Monday at 18:00
Example 2 – overlapping blocks
Time display Block
1
st
“on” time - unit starts on Monday at 8:00
1
st
“off” time - unit stops on Monday at 12:00
2
nd
“on” time – No action
Time programmed before 1
st
stop time, unit remains off
2
nd
“off” time - No action
Unit was not operating, so remains off.
Example 3 – Ignored times
Time display Block
1
st
“on” time - unit starts on Monday at 8:00
1
st
“off” time – No action
Unit remains “on”
2
nd
“on” time – No action
Unit remains “on”
2
nd
“off” time - unit stops on Monday at 18:00

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3.1.4 Errors
In the figure you can see what errors are displayed on the remote control. When there are errors
the remote control switch off the heat recovery unit.
Relay OK is closed with error relay is open.
Relay ALARM is open with error relay is closed
MODE
2
MON
=
TUE
2
WED THU FRI SAT SUN SET TEMP
No error
EXHAUST FAN SU
Fan pro
PPLY FAN
of
31 11
EEr
No Error = -
Fan overheat 1 = 1
Fan overheat
Fan overheat
SE
1,2
T
= 3
= -
= 1
No error = -
Heating high limit = 1
No error = -
Heating control = 1

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4 Labvision
With Labvision the system can be tested and programmed. Application Labvision runs on PC. PC is connected Senso
Argus USB mouse to the Senso Argus Link. For each board and functions are project defined.
There are 4 projects defined in Labvision. But first a short description how to program the E2Prom.
4.1 Program E2Prom
To program E2Prom select in the menu ‘Tools’ above in the screen.
Select to program board RC has address 2 or MN has address 100.
After pushed on ‘OK’ button the board is
programmed with the selected file.
E2Prom was programmed correctly.

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4.2 RC
This project shows all E2prom variables and variables that are set when the Remote Control is
running. By pointing at a red label the variable can be changed.

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4.3 MN
This project shows variables that are set when the Main Controller is running. The buttons can be
pushed to change a variable. Each connector on the board has a color to see where the variable is
connected physically.

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4.4 MN/RC modbus
This project shows variables that are set when the Main Controller is connected with Remote control
and modbus. The information on the screen are divided in several items:
1. Read buffer in MN has the data which reads by Modbus master.
2. Write buffer in MN has the data which written by Modbus master.
3. Read/Write in RC is the modbus information.
4. Modbus Device address is set in E2Prom
5. Mobus_write_enable shows when the Modbus master can write.
6. Exit timer shows when the Modbus master is disconnected when no data is send.
7. TX and RX bytes between Modbus master and MN.
4.5 RC display
This project shows information on Remote Control and Timer saved information.