S Siemens Building Technologies HVAC ProductsField Devices prepared by David H. Jefferson HVAC...

prepared by David H. Jefferson

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Siemens Building Technologies HVAC Products Field Devices

HVAC Products

PRIMARY CONTROLLERS

AMERICAS REGION


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Primary Controllers Evolution

Electronic

Time Line

RC195 Pneumatic

1977- 1985-2005 2004-

Pneumatic

RWC electronic

RWD electronic


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Positive

• Low-cost• Low-end controller

solution• Easy servicing• Long life expectancy

Primary Controllers – Americas History

RC195

Negative

• No sensor calibration• Requires compressor• No LCD display, stick on setpoint scales• Proportional Control only, no P+I control • Control loop tuning difficult


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Positive• Two sensor inputs

for setpoint reset• Electronic, not

mechanical and requires no maintenance

• LCD display• Plug-in terminals

Primary Controllers – Americas History

RWC Controller

Negative• Heating output is Reverse Acting, cannot change control action.• Temperature controller only.


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Project Phoenix

A New Family of Controllers

RWD Range


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RWD Controllers - Phase 1 (Released January, 2005)

A/I D/I A/O D/O

RWD62U 2 1 2 -

RWD68U 2 1 1 1

RWD82U 2 1 - 2


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RWD62U

24 Vac supply voltage Universal inputs (X1) and

(X2) can be Ni1000, Pt1000 or 0 to 10 Vdc

Digital input for day/night setpoints

Two modulating outputs (Y1) and (Y2)

Auxiliary control functions Selectable applications (9 pin) connection for

software tool


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RWD68U




One modulating output (Y1) and one digital output (Q11)


software tool


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RWD82U




Two digital outputs (Q11) and (Q21) or one to three position


software tool


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Main Applications

Temperature

Humidity

Air Pressure

Fluid Pressure

Refrigeration

Air/fluid velocity

Air quality


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X1Y2Y1

Temp.RWD62

YD1

Auxiliary Functions

Day/night setpoints

Remote setpoint control

Limiter control

Cascade control

Maximum priority

Setpoint compensation

Summer/Winter operation


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Service and Commissioning

Installation and commissioning guide included with controller.

Simple push button or software tool programming.

Standard applications are already pre-programmed.

Only parameters relevant to application are displayed on LCD.

Detailed application sheets are available.

All inputs and outputs displayed on a large LCD screen.


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• Standard cable direct from controller to PC

• Simple, Windows-based operation

• Numbered, standard applications

• Customized applications• Hide selected

parameters from LCD• Create an applications

library based on customer or system type

• Single page print-out of settings

Software Tool


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Technical Documentation

Installation/commissioning guide

Application description sheets

Application index

Submittal Sheets

Technical Instructions


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“New” Family Members

SEH62.1U Timeclock

24 Vac 7-day SPDT output Digital input for

count-down timer 24 Vac power supply

3 modes Time clock Time clock + Timer Timer only


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SEM62.2U Transformer

120 Vac/24 Vac 30 vac total output Led secondary power

indication

Secondary power on/off switch

Secondary power fuse Digital contact to initiate

countdown


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ARG62.21 enclosure

Suitable for a single RWD controller

Conduit knockouts at bottom and back

UL approved for line voltage

DIN rail for easy mounting of controller

LCD display visible through opening


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Sales Tools

Promotional and Technical

RWD Controllers


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Flyer

• Main benefits and features of RWD.

• When handing to customers always highlight the “key” benefits and features of interest to the specific customer.

• New primary controller design.


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RWD Demo unit

RWD/DEMO

• Similar to Ace demo unit with controller mounted inside ARG enclosure with external potentiometers.• Suitable for workshops, training and customer demonstrations.


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Technical Instructions Installation and Commissioning Guides


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Application Sheets


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RWD Tool Kit

Contents of tool kit:

• Mouse pad• Set of three screwdrivers • PC to controller (9 pin)

cable• CD including RWD

software– Screensaver– Application Sheets– Auxiliary Function Sheets– Technical Instructions– Installation and

commissioning guides

Purpose Product loyalty

• High value/functional promotional package.• RWD accessory . • Gift or sale item as determined by wholesalers.• During initial release, at no cost to wholesalers.

S Siemens Building Technologies HVAC ProductsField Devices prepared by David H. Jefferson HVAC...

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