Aux Heat Signal Input; Dip Switch Settings - Carrier 40VM900010 Installation And Operating Instructions Manual

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.
CN54
Control port of
auxiliary heater etc.
(Voltage range: 0-24V AC/DC)
(Current range: 0-1A)
Voltage and current must meet the requirements of Tables 2.
Table 2 —Max. Current and Voltage
PORT MAX. VOLTAGE (V AC/DC)
CN54 24

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 .
ON
SW1
Table 3 —DIP Switch Settings
ENC2
ENC1 and
SW7
MAX. CURRENT (A)
1
Set network address (0~7)
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
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
SW2_1
SW2_2
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
ERROR CODE
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
Table 7 —LED 1
Blink 1time/1Hz
Blink 2times/1Hz
Blink 3times/1Hz interface and TSCC communication error
Blink 4times/1Hz interface and wired controller communication error
5
°
0 Temperature: F (default)
1 Temperature:
Reserved
INSTRUCTIONS
Net address >7
interface and IDU communication error
°
C