s siemens building technologies hvac productsfield devices prepared by david h. jefferson hvac...
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![Page 1: S Siemens Building Technologies HVAC ProductsField Devices prepared by David H. Jefferson HVAC Products PRIMARY CONTROLLERS AMERICAS REGION](https://reader035.vdocuments.net/reader035/viewer/2022062312/5516cd98550346fc4e8b4845/html5/thumbnails/1.jpg)
prepared by David H. Jefferson
s
Siemens Building Technologies HVAC Products Field Devices
HVAC Products
PRIMARY CONTROLLERS
AMERICAS REGION
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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
Primary Controllers Evolution
Electronic
Time Line
RC195 Pneumatic
1977- 1985-2005 2004-
Pneumatic
RWC electronic
RWD electronic
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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
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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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
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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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
Project Phoenix
A New Family of Controllers
RWD Range
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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
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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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
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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prepared by David H. Jefferson
s
Siemens Building Technologies HVAC Products Field Devices
RWD68U
24 Vac supply voltage Universal inputs (X1) and
(X2) can be Ni1000, Pt1000 or 0 to 10 Vdc
Digital input for day/night setpoints
One modulating output (Y1) and one digital output (Q11)
Auxiliary control functions Selectable applications (9 pin) connection for
software tool
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prepared by David H. Jefferson
s
Siemens Building Technologies HVAC Products Field Devices
RWD82U
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 digital outputs (Q11) and (Q21) or one to three position
Auxiliary control functions Selectable applications (9 pin) connection for
software tool
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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
Main Applications
Temperature
Humidity
Air Pressure
Fluid Pressure
Refrigeration
Air/fluid velocity
Air quality
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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
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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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
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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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
• 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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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
Technical Documentation
Installation/commissioning guide
Application description sheets
Application index
Submittal Sheets
Technical Instructions
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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
“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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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
“New” Family Members
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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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
“New” Family Members
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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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
Sales Tools
Promotional and Technical
RWD Controllers
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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
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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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
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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prepared by David H. Jefferson
s
Siemens Building Technologies HVAC Products Field Devices
Technical Documentation
Technical Instructions Installation and Commissioning Guides
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prepared by David H. Jefferson
s
Siemens Building Technologies HVAC Products Field Devices
Technical Documentation
Application Sheets
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prepared by David H. Jefferson
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Siemens Building Technologies HVAC Products Field Devices
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.