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Overview

High capacity, single/dual input pneumatic controller, used in conjunction with remote sensors, to provide proportional (P) or proportional plus integral (P+I) control of temperature, humidity, pressure, or dewpoint for heating and air conditioning.

Features

  • Proportional plus integral control option minimizes offset.
  • Miniature diaphragm technology provides high degree of accuracy and reliability.
  • Direct Acting models can be converted to Reverse Acting (RA) function in field.
  • Field adjustable compensation start point.
  • Local or remote setpoint field option. Integral action cut-off provides trouble-free automatic startup.
  • Transparent cover (optional) provides protection while allowing easy reading of settings and gages.
  • Corrosion resistant construction.

Product Specifications

Application
Proportional plus integral pneumatic controller
Airflow Usage
0.07 scfm (33.0 mL/s) with 1 psi (7kPa) pressure drop at 18 psi (124 kPa) main air supply
Dimensions (in.)
5 7/8 in. high x 3 13/16 in. wide x 3 1/4 in. without cover x 3 3/8 in. deep with cover
Dimensions (mm)
148 mm high x 96 mm wide x 83 mm without cover x 86 mm deep with cover
Maximum Safe Operating Pressure (psi)
30 psi
Maximum Safe Operating Pressure (kPa)
207 kPa
Temperature Range (F)
40 F to 130 F
Temperature Range (C)
5 C to 55 C
Includes
With remote control point adjustment capability.
Comments
The controller is capable of operating with the MLP (Mainline pressure) as low as 15 psi (100 kPa) or as high as 23 psi (160 kPa), however recalibration may be required. All RP920s can be converted to reverse acting in the field.
Operating Humidity Range (% RH)
5 to 95% RH
Connection Size (in.)
Air: Combination 5/32 in. by 1/4 in. barb. Optional accessory 14003755-001 (barb fitting for port 4,6,7, or 8 for all RP920).
Pressure Ratings (psi)
Input Signal-- 3 to 15 psi; Output-- 3 to 13 psi, output signal maximum is Mainline Pressure minus 1/2 psi
Pressure Ratings (kPa)
Input Signal-- 21 to 103 kPa; Output-- 21 to 90 kPa, output signal maximum is Mainline Pressure minus 7 kPa
Action
Direct Acting
Mainline Pressure Range (psi)
17 to 21 psi; Maximum Safe-- 30 psi
Mainline Pressure Range (kPa)
115 to 145 kPa; Maximum Safe-- 205 kPa
Capacity
at 18 psi (124 kPa) MLP and 8.5 psi (59 kPa) BLP (does not include sensor usage): 0.021 scfm (10 mL/s)
Number of Sensor Inputs
single
Remote Control Point Adjustment
Yes
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