PRESSURE CONTROLS
These dual function controls offer a tailored va- riety of ranges and options for refrigerants. Low and high pressure functions are combined into a single control with one switch.
Features include convertible reset for manual or automatic high pressure reset on some models, NEMA 1 enclosure with non- conductive cover, front-located captive cover screw, Super Cap® capillary protection system, universal mounting and compact design and color coded flare nuts.
HIGH-LOW PRESSURE CONTROLS
These controls provide extra protection to refrig- eration compressors. Type G20 protects against loss of charge or evaporator freeze-up. Type G23 provides high head pressure protection. Features include SPDT switch, 60” pressure connection,
automatic or manual reset, field-adjustable settings, a pressure- operated snap action switch and a variety of differentials.
LOW PRESSURE --- SPDT --- AUTOMATIC RESET
CAT. NO. MFG. NO. CUT-OUT PSI
5R347 5R348
CAT. NO. MFG. NO. RANGE VAC. OR PSI DIFFERENTIAL 5R196
O12-1502 5R197 5R207 O12-1506 O12-1549
Low Side 12” to 50 PSI High Side 150 to 450 PSI
Low Side 12” to 50 PSI High Side 100 to 250 PSI
Low Side 10” to 100 PSI High Side 150 to 450 PSI
EACH 5-35 PSI 70 PSI Fixed $266.97 5-35 PSI 50 PSI Fixed $246.37 10-40 PSI 70 PSI Fixed $230.75 HIGH PRESSURE --- SPDT --- AUTOMATIC RESET
CAT. NO. MFG. NO. CUT-OUT PSI
5R350
DIFFERENTIAL PSI
G23-5052 150 to 450 50 to125
SETTING PSI OPENS 375
SETTING PSI CLOSES 290
EACH $103.86 HIGH PRESSURE --- SPDT --- MANUAL RESET
CAT. NO. MFG. NO. CUT-OUT PSI
5R351
CAT. NO. MFG. NO. RANGE VAC. OR PSI DIFFERENTIAL 5R208
O12-4833 Low Side 12” to 50 PSI High Side 150 to 450 PSI
5R209
O12-4834 Low Side 10” to 100 PSI High Side 100 to 450 PSI
EACH 5-35 PSI 70 PSI Fixed $257.07 10-40 PSI 70 PSI Fixed $226.20 J10 Series
WALL OR DUCT MOUNTED HUMIDIFIER CONTROL
CAT. NO. MFG. NO. RANGE VAC. OR PSI 5R217
DIFFERENTIAL
O12-1594 Low Side 10” to 100 PSI High Side 100 to 450 PSI
EACH 10 PSI Fixed 70 PSI Fixed $242.38
Provides automatic control of any low-voltage humidifier mounted in forced air system duct. Adjustable range 10 to 60% relative humidity, with positive “On” and “Off” dial positions for manual operation. Fixed 8% RH differential. Mounts in living space or into return air duct. SPST switch. Electrical rating: 24v AC.
LUBE OIL PROTECTION CONTROLS
These lube oil protection controls guard pressure- lubricated refrigeration compressors against major damage due to loss of oil pressure.
If adequate oil pressure is lost, the built-in time delay switch starts timing. If the oil pressure does not recover within the set period, the control circuit is opened, stopping the compressor.
Features include manual reset, field replaceable switch module, high impact non-conductive cover, Supr Cap® capillary protec- tion system, ambient temperature compensated and alarm circuit is standard. 120/240 volt operation. Sensing element: 36” capillary with flare nut.
CAT. NO. MFG. NO. TIME DELAY PRESSURE RANGE P.S.I.D EACH 5R321 5R322
P30-3701 P30-3801
90 120
8 to 60 adjustable 8 to 60 adjustable
$288.17 $291.06
CAT. NO. MFG. NO. EACH 5R005
J10-808 $47.84
DIFFERENTIAL PSI
G23-5253 150 to 450 105 Fixed
SETTING PSI OPENS 425
SETTING PSI CLOSES 320
EACH $106.63
G20-4050 7 to 27 G20-4051 7 to 77
DIFFERENTIAL PSI
12 Fixed 19 to 70
SETTING PSI OPENS 7 7
SETTING PSI CLOSES 19 26
EACH
$90.75 $97.09
TIMER ACTIVATED HEAT PUMP DE-ICE CONTROLS
Provide field-adjustable timer control for de-icing of heat pump outdoor coils. De- frost cycle starts every 30, 45 or 90 minutes.
Interlock prevents more than one defrost cycle per time period and temperature must be 28°F or lower to start. Termination tempera- ture is adjustable from 55° to 78°F. SPDT switch.
CAT. NO. MFG. NO. VOLTAGE SENSING ELEMENT 5R363 5R365
E15-256 E15-2601
24 240 EACH
54” capillary w/5/16 x 5-1/16” bulb $215.58 60” capillary w/5/16 x 4-5/16” bulb $129.92
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CONTROLS