Sterling Saw A0544325 사용자 설명서
Page 18
SMC Series Chillers
3-3 High Pressure Cutout
The high pressure cutout is an electro-mechanical safety feature that opens the control circuit if
the system condensing pressure exceeds a safe level. The chiller will automatically restart when
the pressure drops back to an acceptable level.
the system condensing pressure exceeds a safe level. The chiller will automatically restart when
the pressure drops back to an acceptable level.
Model
Cuts out if condensing pressure exceeds:
SMC050A
275 psi (1,897 kPa)
SMC100A
275 psi (1,897 kPa)
SMC150A
400 psi (2,759 kPa)
Important!
Call a refrigeration service technician to analyze
the problem if high pressure recurs.
3-4 Low Pressure Cutout
The low pressure cutout is an electro-mechanical safety feature that prevents compressor suction
pressure from dropping below a preset point.
pressure from dropping below a preset point.
It is factory set to open the control circuit when pressure drops below a safe level. The chiller
will automatically restart when the suction pressure reaches an acceptable level.
will automatically restart when the suction pressure reaches an acceptable level.
Model
Cuts out if suction pressure falls below:
SMC050
A
15 psi (103 kPa)
SMC100
A
15 psi (103 kPa)
SMC150
A
35 psi (241 kPa)
3-5 Remote Start/Stop Interlock
A contact is provided to allow interlocking of the SMC Series Chiller with process controls. To
use this feature, remove the jumper between Terminals X1 and 1 on Terminal Block 1. Supply a
switch or dry contact interlock connected in series between these two terminals. See Figures 14
and 15 on Pages 32 and 33 for more information.
use this feature, remove the jumper between Terminals X1 and 1 on Terminal Block 1. Supply a
switch or dry contact interlock connected in series between these two terminals. See Figures 14
and 15 on Pages 32 and 33 for more information.