Daikin MPS015 F, Installation And Maintenance Manual

Page: 102 / 132

Control Panel Components
The following individual motor protection is provided.
Table 31: Maverick Individual Motor Control and Protection
Motor Type Short Circuit Overload ON-OFF
Compressor < 100
Amps
MMP Internal Contactor
Condenser Fans MMP Internal Contactor
EAF, no VFD, 208-460V MMP MMP Contactor
EAF, no VFD, 575V CB OL Contactor
EAF with VFD CB* VFD VFD
SAF with VFD CB* VFD VFD
SAF, no VFD CB OL Contactor
MMP = manual motor protector
Internal = vendor motor protector with internal sensors
CB = circuit breaker [* FB with MD4 VFD]
OL = over load relay
Manual Motor Protector (MMP)
The manual motor protector (MMP) provides coordinated
branch circuit, short circuit protection, a disconnecting means,
a motor controller, and coordinated motor overload protection.
A short circuit indicator with manual reset is mounted along
side of each MMP as a means to differentiate between a short
circuit and overload trip conditions.
The MMP trip points are factory set. Do not change unless
the motor ampacity changes or the MMP is replaced with
a new device with incorrect setpoint adjustment. Any other
non-authorized trip point or setpoint adjustment voids all or
portions of the unit’s warranty. Authorized setpoint adjustment
is accomplished as follows
1 . For motors with a 1.15 service factor, rotate the arrow on
the dial to correspond to the motor FLA.
2 . For motors with a 1.0 service factor, multiply the
motor FLA by 0.9; then rotate the arrow on the dial to
correspond to that value.
To reset a tripped MMP, clear the trip by rotating the knob
counterclockwise to the OFF (O) position; then rotate knob
clockwise to the ON (I) position. See Figure 84 .
WARNING
If an overload or a fault current interruption occurs, check
circuits to determine the cause of the interruption. If a fault
condition exits, examine the controller. If damaged, replace it
to reduce the risk of fire or electrical shock.
Other MMP Features:
• Three-position rotary operator: OFF (O)-TRIP-ON (I)
( Figure 84 ).
• Lockout—tagoutable rotary operator: turn the rotary
operator to OFF (O), slide out the extension arm, and
insert a lockout pin.
• Ambient compensated –20°C to +40°C.
• Single-phase sensitivity: if one phase exceeds setpoint,
all three phases open.
• Trip test: insert a 9/64" screw driver in the test slot to
simulate a trip .
Figure 84: Manual Motor Protector
IM 1058-8 • MAVERICK II ROOFTOP SYSTEMS 102 www.DaikinApplied.com
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