Bard GV27S1-A, Руководство по установке

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Manual 2100-510E
Page
32 of 38
TROUBLESHOOTING GE X13-SERIES ECM MOTORS
If the Motor is Running
1. It is normal for the motor to rock back and forth on start
up. Do not replace the motor if this is the only problem
identified.
2. If the system is excessively noisy, does not appear to
change speeds in response to a demand (Heat, Cool, Other), or
is having symptoms during the cycle such as tripping limit or
freezing coil, check the following:
a. Wait for programmed delays to time out.
b. Ensure that the motors control inputs are wired to the
factory supplied wiring diagram to insure motor is
getting proper control signals and sequencing.
c. Remove the filter and check that all dampers, registers,
and grilles are open and free flowing. If removing the
filters corrects the problem, clean or replace with a less
restrictive filter. Also check and clean the blower
wheel or coil as necessary.
d. Check the external static pressure (total of both supply
and return) to insure that you are within the ranges as
listed on the unit serial plate. If higher than allowed,
additional duct work is needed.
e. If the motor does not shut off at the end of the cycle,
wait for any programmed delays to time out (no more
than 90 seconds). Also make sure that there is no call
for “Continuous Fan” on the "G" terminal.
f. If the above diagnostics do not solve the problem,
confirm the voltage checks in the next section below,
then continue with the “Model X13 Communication
Diagnostics”.
If the Motor is Not Running
1. Check for proper high voltage and ground at the (L/L1)
(G) (N/L2) connections at the motor (see Figure 17). Correct
any voltage issues before proceeding to the next step. The
X13 Motor is voltage specific. Only the correct voltage
should be applied to the proper motor. Input voltage within
plus or minus 10% of the nominal 230 VAC is acceptable.
2. If the motor has proper high voltage and ground at the
(L/L1) (G) (N/L2) connections, then continue with the “Model
X13 Communication Diagnostics”.
FIGURE 17
↓
↓
L2 LINE
POWER EARTH
GROUND
L1 LINE
POWER
NOTE: MOTOR IS CONSTANTLY
POWERED BY LINE VOLTAGE