Sinclair SCV-750EB Service Manual page 52

43 CN7
44 ENC2
45 CN74
46 ENC4
47 S12
Main PCB field setting
Multiple pumps control: output pump signal on all units.
Single pump control: only the master unit output pump signal, no pump signal output on the slave units.
For
SCV-750EB and SCV-1400EB
Switch
S1-1
S1-3
S3-1
S4
ENC1
Note:
1. Wiring of "HEAT/COOL" weak electric port
The remote function of "HEAT/COOL" must be set by DIP switch. The remote function "HEAT/COOL" is effective when S1-1or S5-3 is chosen ON, at the same time,
the wire controller is out of control.
Corresponding parallel connect the "HEAT/COOL" port of the main unit's electric control box, then, connect the "ON/OFF" signal (provide by user) to the
"HEAT/COOL" port of main unit as follows.
Wiring method: Shorting the terminal block CN138 at slave board inside the electric control box to enable the remote function of "HEAT/COOL".
0# electric
control box
"HEAT/COOL" port
2. Wiring of "TEMP-SWITCH" weak electric port
The function of "TEMP-SWITCH" must be set by wired controller for two setting water temperature. For cooling and heating mode.
Wiring method: Shorting the terminal block CN110 at slave board inside the electric control box to choose the target water temperature.
50
Target water temperature switching port
Power DIP switch for capacity selection.
(SCV-900EB defaults 2; SCV-1800EB defaults 6 )
Power supply port of the HMI
NET_ADDRESS DIP switch (0~15)
S12: Dip switch
S12-1: Valid for S12-1 ON (factory default)
S12-2: Single water pump control, valid for S12-2 OFF (factory default)
Multiple water pumps control, valid for S12-2 ON。
Description
Control mode
Water pump
-
DIP switch for capacity selection
DIP switch for capacity selection
0-F valid for unit address setting
on the DIP switches
0 indicates the master unit and 1-F
the auxiliary units
(parallel connection)
0# electric
control box
"HEAT/COOL" port
ON
Remote control
Single water
Multiple water pumps
control
-
-
-
0# electric
control box
"TEMP-SWITCH" port
DC12V
DC5V
DC9V
DC5V
DC5V
Default factory
OFF
setting
Normal
OFF
control
pump OFF
control
- ON
- SCV-750EB: 0011
SCV-1400EB: 0111
- 0
0# electric
control box
"TEMP-SWITCH" port