Table of Contents
Advertisement
POWER WIRING
Phase
Power
Volt and
Frequency
Fuse on board
Wire
Fig. 4 —Power Input
COMMUNICATION WIRING
Type: 2-core stranded shielded cable
Diameter: AWG 18
Maximum wiring length:
• 3937 ft. between the ductless indoor unit and the DLS
VRF Interface
• 3280 ft. between the touchscreen central controller and
the DLS VRF Interface
• 820 ft. between the wire controller and DLS VRF
Interface
Touch Screen
DLS VRF interface 1#
Controller
(TSCC)
CN3
CN4
X E Y
X E Y
X E Y
X Y E
Ductless
Indoor
unit 1#
Fig. 5 —Communication Wiring
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.
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 3.
Table 3 —Max. Current and Voltage
PORT
MAX. VOLTAGE (V AC/DC)
CN54
24
1-Phase
230V-60Hz
5A/250VAC
2-core stranded shielded cable
18AWG
DLS VRF interface M#
CN2
CN3
CN4
CN2
HB HA
X E Y X E Y
HB HA
Matched
resistance
X Y E
VRF
Ductless
VRF
controller
Indoor
controller
unit N#
Note：
CN54
MAX. CURRENT (A)
1
DIP SWITCH SETTINGS
• ENC1/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 4.
Example:
A system has 10 VRF indoor units and 2 DLS indoor units
with DLS VRF Interfaces. There is no automatic addressing
function for the DLS VRF Interface. If the VRF indoor units
are addressed 0-9, the DLS indoor units will be 10 and 11
following the settings in Table 4.
Table 4 —DIP Switch Settings
ENC2
ENC1 and
SW7
NOTE: The address assigned through ENC1 & SW7 must
be same as indoor unit address on wall controller.
Table 5 —SW2_1 and SW2_2 Definition
SW2_1
SW2_2
Table 6 —0/1 Definition of Each Dial Code Switch
NOTE: Temperature unit (°F or °C) set through SW2_1 must
be same as touch screen central controller and wall controller.
Table 7 —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 8 —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
ON
SW1
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
°
0
Temperature:
F (default)
1
Temperature:
Reserved
INSTRUCTIONS
Net address >7
interface and IDU communication error
°
C
Advertisement
Table of Contents
