Submittal

Contractor: P.O.:
Engineer:
Project Name: Unit Tag:
04/14 7 Page _____ of _____
Single Phase Soft Starters
The manufacturer works continually to improve its products. As a result, the design and specifi cations of each product at the time of order may be changed without notice. Purchaser’s approval of this data set signifi es that the equipment is acceptable under the
provisions of the job specifi cation. Statements and other information contained herein are not express warranties and do not form the basis of any bargain between the parties, but are merely the manufacturer’s opinion or commendation of its products.
Led Flash Codes
A Red LED indicator will flash under the following
conditions.
[NOTE: LED fault indicator is turned off in normal
running mode.]
a) Rapid Flash (10 / sec) : Low Voltage
b) Triple Flash Every Three Seconds (3 / 3 secs):
Lockout on Three Failed Starts
c) Slow Flash (1 / 3 secs): Lockout on Over Current
d) Slow Steady Flash (1 / sec): Cycle Delay / Fault
Mode
Flash Code (Rapid Flash (10 / sec) : Low Voltage)
- Displayed for “Low supply voltage” before or after
a softstart.
- If Low voltage is detected before a start, a re-start
is attempted after 50 seconds.
- If Low voltage is detected after a start, a re-start
is attempted after 3 minutes.
Flash Code (Triple Flash every three seconds
(3 / 3 secs): Lockout on Three Failed Starts)
- Displayed after failure to start on “Three
consecutive start attempts”.
- Re-start is attempted after 50 minutes.
- Standard lockout period is revised to 3 minutes
after a successful start.
In circumstances where the compressor may have
seized or is unable to startup due to failure of other
components in the HVAC system, the software will
check for three consecutive failed starts. On the third
sequential failed start, the program goes into Lockout
for 50 mins. On failing to get a good start even after
50 mins, it will re-attempt start again after duration
of 50 mins. Once a good start is eventually achieved,
it will reset the hardstart counter and will require 3
failed starts again to force it back into Lockout mode.
Lockout can be cleared anytime through a power reset
of the SureStart device.
SureStart Single Phase LED Flash Codes
Flash Code (Slow Flash (1 / 3 secs): Lockout on
Over current)
- Displayed for “Overcurrent” in running mode of the
compressor motor.
- Overcurrent limit is “25A for 08-16A version” and
“50A for 16-32A rated version”.
- Also displayed, if internal Klixon of the compressor
trips out on overheat.
- Re-start is attempted after 10 minutes.
To limit the current in compressors from extending
abnormally beyond its stated capacities, SureStart
is also equipped with Overcurrent limit protection.
For models rated from 16-32A, SureStart is designed
to trip out in overload conditions exceeding 50A. In
smaller models, it is designed to cutoff power to the
compressor if the current drawn exceeds 25A. On
overcurrent lockout, SureStart attempts a re-start
automatically after 10 minutes.
Both failed start lockout and overcurrent limit
protection have been designed to prevent the
compressor from drawing abnormal currents in
conditions not feasible for the compressor operation.
Flash Code (Slow Steady Flash (1 / sec): Cycle
Delay / Fault Mode)
- Displayed for “Cycle delay” between two
consecutive softstarts or other faults mentioned
below.
- Re-start is attempted after a default period of
3 minutes.
- Other possible reasons for this Fault mode indicator
can be due to
- incorrect wiring during installation,
- a failed Softstart attempt,
- intermittent power loss (duration longer
than 100ms),
- frequency out of range, or
- failed run capacitor.