5
AUX HEAT SIGNAL INPUT
CN54 is the terminal for ON/OFF signal input for auxiliary
heat on DLS VRF interface. The signal type is dry contact.
NOTE:
Some of the indoor units do not support AUX heat
function.
Voltage and current must meet the requirements of Tables 2.
Table 2 —Max. Current and Voltage
DIP SWITCH SETTINGS
• ENC1 and ENC2 are rotary dial whereas SW7 is ON/
OFF.
• ENC2 is used to set the network address.
• Combination of ENC1 and SW7 allows you to set the
indoor unit address. See Table .
Table 3 —DIP Switch Settings
NOTE:
The address assigned through ENC1 & SW7 must
be same as indoor unit address on wall controller.
Table 4 —SW2_1 and SW2_2 Definition
Table 5 —0/1 Definition of Each Dial Code Switch
NOTE:
The temperature unit (°F or °C) set through SW2_1
must be same as touch screen central controller and wall
controller.
Table 6 —EF and E8 Error Codes
Table 7 —LED 1
PORT
MAX. VOLTAGE (V AC/DC)
MAX. CURRENT (A)
CN54
24
1
ENC2
Set network address (0~7)
ENC1 and
SW7
Set IDU address, valid range is 0~15
Set IDU address, valid range is 16~31
Set IDU address, valid range is 32~47
Set IDU address, valid range is 48~63
CN54
Control port of
auxiliary heater etc.
(Voltage range: 0-24V AC/DC)
(Current range: 0-1A)
ON
SW1
SW2_1
0
Temperature:
°
F (default)
1
Temperature:
°
C
SW2_2
Reserved
ERROR CODE
INSTRUCTIONS
EF
IF TSCC or wired controller displays EF error code, you
need to check whether IDU appears fault or protection
E8
IF TSCC or wired controller displays E8 error code, you
need to check whether the IDU has a communication
problem with the interface
Blink 1time/1Hz
Net address >7
Blink 2times/1Hz
interface and IDU communication error
Blink 3times/1Hz
interface and TSCC communication error
Blink 4times/1Hz
interface and wired controller communication error
