Description
Overview
The Two Stage Setpoint Control 152 is a microprocessor-based control that operates as either a two stage setpoint control or as two independent setpoint controls. As a two stage setpoint control, the 152 can provide two stage heating, two stage cooling or a combined heating / cooling interlock function. When operating as two independent setpoint controls, the 152 can control any combination of heating or cooling device.

Specifications:
Literature: D 152, A 152's, D 001, D 070
Control: Microprocessor control; this is not a safety (limit) control
Packaged Weight: 0.8 lb. (360 g), Enclosure C, white PVC plastic
Dimensions: 4-3/4" H x 2-7/8" W x 7/8" D (120 x 74 x 22 mm)
Approvals: CSA C US meets ICES & FCC regulations for EMI/RFI
Ambient Conditions: Indoor use only, -20 to 120+F (-30 to 50+C), < 90% RH non-condensing
Power Supply: Class 2, 24 V (ac) +10% 50/60 Hz 2 VA or 32 V (dc) +20% 0.04 A
Relays: 240 V (ac) 10 A, 1/3 hp, pilot duty 240 VA
Sensors Included: NTC thermistor, 10 kΩ @ 77+F (25+C +0.2+C) +=3892 Universal Sensor 071
Optional Devices: Tekmar type #: 070, 071, 072, 073, 076, 077, 078, 079
Programmed Settings: Ten year memory backup
Control Accuracy: +0.5+F (+0.3+C) with up to 500 feet (150 m) of 18 AWG wire to sensors
Temperature Display: -85 to 302+F (-65 to 150+C)
Setpoint 1 and 2: -40 to 239+F (-40 to 115+C)
Differential 1 and 2: 1 to 40+F (1 to 22+C)
Time Delay 1 and 2: 0 to 19 min. 50 sec.
Operating Mode 1: Heating / Cooling
Operating Mode 2: Heating / Cooling
Temperature Display: Fahrenheit / Celsius
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Specs
Application:
Two Stage
Width:
2-7/8"
Height:
4-3/4"
Stages:
2 Heat/2 Cool
2 Heat
2 Cool
User Interface:
LCD
Push Button
Voltage:
24v
Depth (Inches):
7/8"
Ambient Conditions:
Indoor Only: -20°-120°F < 90% RH non-condensing
Power Supply:
24 V (ac)
Class 2
Relays:
240 V (ac) 10 A-1/3 hp-pilot duty 240 VA
Temperature Range (F):
-40°-239°F
Max Temp (F):
239°F
Min Temp (F):
-40°F
Control:
Microprocessor Control
Weight (lbs):
.7 lbs
Accuracy:
+/- 0.5°F w/ up to 500 feet of 18 AWG wire to sensors
Sensors:
NTC Thermistor 10 k ohm @ 77°F
Temperature Display:
-85 to 302°F
Max Temp Differential:
40°F
Min Temp Differential:
1°F
Differential:
1° to 40°F
Cycle:
30 sec. to 19 min. 50 sec
Programmed Settings:
Ten year memory backup
Enclosure Type:
C
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