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For SCV-900EB and SCV-1800EB
Switch
S5
S5-3
S12
S12-1
S12-2
ENC2
ENC2
ENC4
ENC4
Note:
When using remote control function, first is to dial the S5-3 switch to ON. The operation method is as below:
1. Remote ON/OFF:
Connect a switch between 15 and 24 terminals of block XT2 (Refer to the Part 4, 3.1 Single unit) which can be turned on/off at any time. If the switch is closed,
unit turns on. If the switch is open, unit turns off.
0# electric
control box
"ON/OFF" port
2. Remote cool/heat:
Connect a switch between 14 and 23 terminals of block XT2 (Refer to the Part 4, 3.1 Single unit) which can change operation mode at any time. If the switch is
closed, unit runs in heating mode. If the switch is open, unit runs in cooling mode.
Digital display output
For SCV-750EB, SCV-900EB and SCV-1400EB:
Outdoor unit state
Standby
Normal operation
Error or protection
For SCV-1800EB:
Outdoor unit state
Standby
Normal operation
Error or protection
Description
Control mode
Default setting
Water pump
DIP switch for capacity selection
Address setting
0: master unit
1,2,3...F: slave units
0# electric
control box
"ON/OFF" port
Parameters displayed on DSP1
0
Running speed of compressor A in
rotations per second
-- or placeholder
Master parameters displayed
DSP1
DSP2
Address
Online number
Running speed
Running speed of
of compressor
compressor B in
A in rotations
rotations
per second
per second
-- or placeholder
ON
Remote control
Default setting
Multiple pumps control
-
-
0# electric
control box
"HEAT/COOL" port
Parameters displayed on DSP2
1
Running speed of compressor B in
rotations per second
Error or protection code
Slave parameters displayed
DSP1
Address
No display
Running speed of
Running speed of
compressor A in
compressor B in
rotations
rotations
per second
per second
Error or protection code
Default factory
OFF
setting
Normal
OFF
control
-
ON
Single pump
OFF
control
SCV-900EB
-
SCV-1800EB： 6
SCV-900EB: 0
-
SCV-1800EB: 0
and 1
0# electric
control box
"HEAT/COOL" port
DSP1
DSP2
DSP1
DSP2
： 2
DSP2
51
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