JAKKA Control Kit 4
Manual
www.jakkagroup.com
6
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_swit 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.
