Yaskawa Z1000U HVAC Matrix Bypass - Manual (Page 24)

YASKAWA TOEP YAIZ1D01A Z1000U Matrix Bypass Quick Start Procedure
Z1000U Bypass
Quick Start Procedure
Page 24
of 37
Step HOA Key Press Description HOA Display/Result
9.1. 8
then
Press HAND then quickly press OFF within 1 second. The motor will briefl y
spin under line power.
Observe the motor and verify correct rotation direction.
Verify no faults or alarms occur.
The HAND LED turns OFF and the motor coasts to stop.
Proceed to STEP 10.1 if motor rotation in BYPASS Mode is correct.
Otherwise, proceed to STEP 9.1.9 if motor rotation in BYPASS is NOT
correct.
9.1.9
OFF
ON
OFF
ON
CORRECTING Motor Rotation (BYPASS)
Follow sub-steps a. thru f. below to correct motor rotation direction in BYPASS mode.
a. De-energize/turn OFF
and lock out the MAINS
power supply to the
bypass.
b. Turn off power on the
front of the bypass and
open the cabinet.
c. Verify that there is no
power present in the cabinet.
d. Exchange the wires
connected to terminals
L1 and L2 where the
input power is connected
at the input circuit breaker.
e. Tighten all connections.
f. Return
to STEP 9.1.5 to
verify proper motor rotation
in BYPASS.
DANGER! Shock Hazard.
De-energize and lock-out MAIN
branch circuit power supply to the
bypass before contacting conductors.
MAINS
L1, L2, L3 Input
Circuit Breaker
OFF
De-energized
1 2
Reverse
Mains
L1 and L2
Wires
1L2, 1L2, 1L3
LOAD
To internal bypass circuit
From
Branch Circuit

Check Motor Rotation Direction (continued)
9
STEP