Other Features - Daikin Maverick II MPS062E Installation And Maintenance Manual

Field Wiring Terminals
All field wiring terminals are spring clamp type, which offer
several advantages over traditional screw-type terminals:
• Spring connections do not require torquing
• Spring connections resist failure due to vibration
• Easily identifiable terminal markers
• Combination spring release and square test ports Wire
connections require inserting ("1" in
wire a round port and clamping the stripped wire by
inserting a flat-bladed screw driver in the adjacent square
port ("2" in Figure 90).
Figure 90: Terminal Connectors
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Phase Voltage Monitor (PVM)
The phase voltage monitor
three-phase loads from damaging power conditions. A
microprocessor-based voltage and phase sensing circuit
constantly monitors the three-phase voltages to detect harmful
power line conditions. When a harmful condition is detected,
its output relay is deactivated after a specified trip delay (Trip
Delay). The output relay reactivates after power line conditions
return to an acceptable level for a specified amount of time
Figure 90 a stripped
(Restart Delay). The trip and restart delays prevent nuisance
tripping due to rapidly fluctuating power line conditions.
There are two LEDs on the face of the PVM ("1" in
to indicate the following:
Table 20: LED Indication
Status
Normal operation, no faults, relay
energized
Loss of input phase (relay de-energized)
Voltage unbalance (relay de-energized)
High or low voltage (relay de-energized)
Phase reversal (relay de-energized)
Restart delay (fault cleared, PVM
pending restart, relay de-energized)

Other features:

Figure 91: Phase Voltage Monitor
105
(Figure
• Standard 2% to 8% variable voltage unbalance ("3" in
Figure 91).
• Standard 1 to 500 second variable restart delay ("2" in
Figure 91).
• Standard 1 to 30 second trip delay ("4" in
91) (except loss of phase, which trips at 1 second
nonadjustable).
IM 991-2 • MAVERICK II ROOFTOP
Maintenance
91)is designed to protect
Figure 91)
LED Indicator
Green LED: steady ON
Red LED: flash twice, OFF, flash
twice, OFF, etc.
Red LED: flash twice, OFF, flash
twice, OFF, etc.
Red LED: steady ON
Red LED: pulse ON, OFF, ON,
OFF, etc.
Green LED: pulse ON, OFF, ON,
OFF, etc.
Figure