ERS EMCH-10W/1, Installation And User Manual

Page: 143 / 190


Remote alarm
Remote alarm terminal only provides passive switching signal.
Current passing through the terminal interface should less than 1.5A, otherwise please use AC contactor to
control load indirectly.

Remote shutdown
If switch is closed, the unit will be stopped forcibly.
Under this circumstance, anti-frozen protection and other protection functions are still effective.
If switch breaks, unit can run normally according settings.

Remote cooling/heating
If switch 2 is closed, the unit will shift to heating mode forcibly;
If switch 2 is break, the unit will shift to cooling mode forcibly.
Note:
1. Remote shutdown and remote cooling/heating is optional function.
Choose this function by DIP switch SW4_1 (SW3_1 for 12/14/16kW) on PCB board. Factory default has not set
remote cooling/heating function.
2. When the remote control and wired controller used at the same time, the unit will carry out the last command of
arbitrary terminal.
3. Remote shutdown has the highest priority. In the status of remote shutdown, other controllers can’t start the
unit.
3 4
Main control board
5
6
SWITCH
SWITCH 2
7
8
48
V.2