MovinCool CMW30 - Manual (Page 34)

34
INSTALLATION (cont.)
Warning Signal Connection (Output Signal)
The unit is equipped with a warning signal output relay type (Form-C, normal open
dry contact), which can be used to monitor the failure conditions.
Relay contactor is closed when any of the following conditions has occurred:
• Condensation overflows
• Temperature sensor fails
• Cooling function fails
The relay output contactor is rated 5 A at 30 VDC or 5 A at 250 VAC (resistive
load), and it is compatible with various warning devices such as alarm speakers,
light indicators, etc.
Connecting Warning Signal to CMW30
WARNING:
1. All electrical work should only be performed by qualified personnel.
Repair to electrical components by non-certified technicians may
result in personal injury and/or damage to the unit.
2. Disconnect power before any electrical installation. Beware that
some residual voltage may remain in the unit immediately after the
power is disconnected.
3. Do not touch the relay board of the unit until the green LED7 is
turned off. Failure to follow this warning may lead to electrical
shock.
1. Use recommended warning signal wire size from 16 AWG to 26 AWG for a
solid wire, or 16 AWG to 22 AWG for a stranded wire.
2. Disconnect power before connecting the warning signal wire to the unit.
3. Insert the warning signal wire through the
signal wire inlet.
LED 7
ILL00697-00
1 6
Relay Board
SIGNAL WIRE INLET
ILL00306-00