Installation Instructions

ManualsBrandsSiemens ManualsHVAC Replacement PartsRC-195 Single Input Receiver-Controller

Document No. 129-122

September 9, 2015

RC 195 Single Input Receiver-Controller

Item Number 129-122, Rev. CA Page 1 of 4

Product Description

The RC 195 Single Input Receiver-Controller is a

pneumatic instrument that receives one pneumatic

input either direct acting (DA) or reverse acting (RA).

It produces a pneumatic control signal based on the

net pneumatic input and the mechanical settings of

set point and percent proportional band.

Product Number

195-0011

Required Tools

• Screwdriver

• Two No. 8 or No. 10 screws

Expected Installation Time

35 minutes

Troubleshooting

Before troubleshooting the operation of the RC 195

Single Input Receiver-Controller, ensure that:

• The supply pressure at the unit is 22 psi

(152 kPa).

• The transmitter input being used is between 3

and 15 psi (21 to 103 kPa).

• Only one restrictor supplies the transmitter.

• The transmitter calibration is correct.

Table 1. Troubleshooting Check List.

Complaint Check Probable Cause Corrective Action

Control pressure

stays at

approximately zero

Rotate set point

adjustment screw

counterclockwise

Pressure

increases

Transmitter sensing medium which is

above (RA) or below (DA) the

proportional band

None

Receiver-Controller out of calibration

Recalibrate

Pressure remains

unchanged

Plugged pilot relay restrictors

Replace Pilot Relay

Restrictors

Receiver Controller is defective

Replace Receiver-

Controller

Control pressure

stays at

approximately

supply pressure

Rotate set point

adjustment screw

clockwise

Pressure

decreases

Transmitter sensing medium which is

above (DA) or below (RA) the

proportional band

None

Receiver-Controller out of calibration

Recalibrate

Pressure remains

unchanged

Receiver-Controller is defective

Replace Receiver-

Controller

Prerequisites

• Clean, dry, oil-free air supply.

• Constant air supply. The receiver-controller

and transmitter are calibrated at the factory

with a 22 psig (152 kPa) air supply.

Installation

1. Mount the RC 195 Single Input Receiver-

Controller in any position on any vertical

surface using two No. 8 or No. 10 screws. The

integral mounting tabs are located on the top

and bottom of the case.

NOTE: Small vibrations such as those from an

air handling unit will not affect the

operation of the instrument.

Summary of content (4 pages)

PAGE 1
Installation Instructions Document No. 129-122 September 9, 2015 RC 195 Single Input Receiver-Controller Product Description Expected Installation Time The RC 195 Single Input Receiver-Controller is a pneumatic instrument that receives one pneumatic input either direct acting (DA) or reverse acting (RA). It produces a pneumatic control signal based on the net pneumatic input and the mechanical settings of set point and percent proportional band.
PAGE 2
Document No. 129-122 Installation Instructions September 9, 2015 Installation, Continued 4. To use an internal restrictor, move the restrictor tab to the "in" position. Restrictors are in the "out" position when shipped from the factory. If the transmitter input line is connected to "1", use restrictor "1". If the transmitter input line is connected to "2", use restrictor "2". a. Loosen both restrictor screws two full turns. b.
PAGE 3
Document No. 129-122 Installation Instructions September 9, 2015 Installation, Continued Accessories 6. Apply setpoint pressure to selected input (#1/DA or #2/RA) and with a screwdriver, turn the set point adjustment screw until control pressure reaches 8 psi (55 kPa) or midpoint pressure of the spring range of actuator. Restriction Repair Kit (Four restriction plates and gaskets) 7. Calibrate setpoint dial by pulling it up, turning it to agree with the transmitter input, and then releasing it. 8.
PAGE 4
Document No. 129-122 Installation Instructions September 9, 2015 Table 2. Retrofit Cross Reference. References RC 195-4 Operation and adjustment information 155-119P25 RC 195-3 Calibration and set-up procedure using simulator 155-103P25 Information in this publication is based on current specifications. The company reserves the right to make changes in specifications and models as design improvements are introduced. POWERS CONTROL is a registered trademark of Siemens Industry, Inc.