Page 14 of 36
SK2014-SON-002-TechMnl-SWC-003
C.1.4.
Configuration Settings
There are 2 DIP switches set on the PCB:
a)
DIPA-S1 (8 positions)
SW1 – SW6: used for master-slave / BMS network address.
SW7 – SW8: used for operating mode configuration.
b)
DIPB-S2 (6 positions)
SW1: Occupancy / economy mode selection.
SW2: 2-pipe / 4-pipe configuration selection.
SW3: Thermoelectric valve configuration selection (2-pipe system only).
SW4: Pre-heat protection temperature selection.
SW5 – SW6: brushless DC fan motor configuration.
1.
Default DIP Switch Settings:
DIPA –S1
DIPB –S2
2.
Thermoelectric Valve Configuration:
On board DIP switch SW3 of DIPB is used for this configuration.
3.
Unit Configuration:
On board DIP Switches of DIPB are used for the below configurations.
SW1
PR-O contact setting
0
Economy contact
1
Window contact
SW2
System setting
0
2-pipes system
1
4-pipes system
SW4
Preheat setting
1
28°C
0
36°C
4.
Motorized Fan Speed Settings for Different Models:
Unit Model
Speed (RPM)
S3
SW5
SW6
Low
Medium
High
HWN-2-EC -25
600
700
930
0
0
1
HWN-2-EC -30
700
800
1150
0
1
1
HWN-2-EC-40
900
1100
1300
1
0
0
SW3
Thermoelectric valve (MTV)
1
With valve
0
No valve
Unit Configuration
WITHOUT Valve
Unit Configuration
WITH Valve
0=OFF
1=ON
