Hydromatic Novus 1000 Series, Инструкция по установке и обслуживанию

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4. Start relay check.
a. Check the coil re sis tance.
It should be 3,000 to
15,000 ohms.
b. Install a clamp on amp
meter around the start
wind ing lead.
c. Set the amp meter
scale to at least 2 times
the pump motor full
load current.
d. Place the H-O-A switch
in the Hand position to
start the pump.
e. The meter should read
approximately 2 times
full load current during
starting.
f. After the motor has
started (within one
second) the current
should drop to a value
much less than full load
current.
5. Motor voltage check:
6
Pump
Troubleshooting
7. If the unbalance moves
with the motor leads, the
un
bal ance is caused by
the mo tor. If the
unbalance remains with
the terminals, the
unbalance is in the
pow er supply.
8. If the current unbalance
exceeds five percent,
nui
sance tripping or
ex ces sive heating will
result.
9. Connect leads for the
lowest percent of current
un bal ance.
f. Connections and start
components. Single phase
only.
1. Disconnect all power
from the panel before
making these checks.
2. Motor winding re sis tance
read ings.
a. Disconnect all three
motor leads from panel
terminal blocks.
b. Using a volt-ohmmeter,
with the scale set
on RX1, measure the
resistance be tween the
leads with the chart.
Typical
Motor Resistance
Winding Leads Reading
Main Black to Lowest
White
Start Black to Next
Red Lowest
(Middle)
Both White to Highest
Red (Main & Start)
3. Capacitor check.
a. Make sure the ca pac i tor
is dis charged. Use
extreme caution as a
spark might occur.
b.Disconnect the ca pac i tor
leads and connect
an analog-type volt-
ohmmeter to the capacitor
terminals.
c. Set the meter on the
RX1,000 scale to check
the start ca pac i tor. Set the
meter on the RX10,000
scale to check the
run ca pac i tor.
d. The meter should in di cate
low ohms when it is first
connected, but as
the ca pac i tor becomes
charged (by the meter), it
will return to a read ing of
infinity (open circuit).
Typical
Motor Voltage
Component Lead Mode Reading
Main Winding Black to Start Line Voltage
White
Main Winding Black to Run Line Voltage
White
Start Winding Black to Start Line Voltage
Red
Start Winding Black to Run 120%
Red Line Voltage