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49P11-843 SURESWITCH
Model(s) . Page(s)
49P11-843 SureSwitch™................................................ 197 – 198
Model (s) Page(s)
16E09-101........................................................................ 199– 200
90-160 thru 90-172 / 90-244 thru 90-249........................ 201
COOLING / REFRIGERATION 197
SPECIFICATIONS
ELECTRICAL RATINGS
Line Voltage Input....................................... 240 VAC, 50/60
Hz
Full Load Amperes (FLA)............................ 40 A
Locked Rotor Amperes (LRA)..................... 200A
Control (Coil) Voltage (Y, C)........................ 24 VAC, 50/60 Hz
RECOMMENDED TERMINAL TORQUE – L1, L2, R and C
#4 – 6 AWG................................................. 45 in-lbs
#8 AWG....................................................... 40 in-lbs
#10 – 14 AWG............................................. 35 in-lbs
TEST
Tri-Color LED
Fault/Status Indicator
Count Button Hardstart
Option
Fan
Common
Compressor/Fan
Capacitor Outputs
Short Cycle
Protection
Delay
Dipswitch
Brownout
Protection
Brown
Dipswitch
C
Y
Thermostat
Input
Test
Button
Crankcase Heater
Power
Line
Inputs
L1
L2
Run
Common
Delay
Brown
ON
COUNT
Compressor
Outputs
49P11-843 SureSwitch Terminals and Switches
OPERATION
CALL FOR COMPRESSOR OPERATION
24 VAC between the Y and C terminals will signal a call for
compressor operation. The C compressor and fan outputs
will be energized. Loss of 24 VAC between Y and C will de-
energize the outputs.
TEST
SureSwitch includes a Test Mode to assist in system instal-
lation and troubleshooting. Press the “TEST” button for one
second to energize the compressor and fan for five seconds
without a Y call.
RANDOM START DELAY
At power-up and when SureSwitch recovers from a brownout,
a random start delay of 5-90 seconds will be activated. This
delay is in addition to the short cycle delay. During this delay
the compressor will not be energized, even if a call for com-
pressor operation is present. The random start delay can help
reduce spikes in power consumption when multiple loads are
re-energized after a blackout or brownout.
The random start delay cannot be disabled, but is only active
at initial power-up and when recovering from a brownout.
Normal compressor cycling will not activate the random start
delay.
SHORT CYCLE PROTECTION
At power-up, and any time the compressor is de-energized,
SureSwitch will activate a three minute short cycle delay. Dur-
ing this delay the compressor will not be energized, even if a
call for compressor operation is present, to prevent compres-
sor damage due to rapid on and off cycling. Normal operation
resumes when the delay expires.
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TECHNICAL HELP