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SLX Series
Power Fan Coil Unit Controllers
(SLX-ASC-PFCU and SLX-ASC-PFCU-A)
Power Terminal Unit Controllers
(SLX-P-PTU and SLX-P-PTU-A)
1. Product Description
This document describes the hardware installation procedures
for the SLX Series Power Fan Coil Unit (PFCU) controllers and
Power Terminal Unit Free Programmable (PTU) controllers.
The PFCU controllers are powered by 85-265VAC (24VAC
power generation is also available on SLX-ASC-PFCU-A
models). These controllers are designed to control fan coil unit
applications with up to three fan speeds and to meet the
requirements of both a two-pipe shared heating and cooling
coil, and four-pipe heating and cooling coil system.
The PTU controllers are powered by 85-265VAC (24VAC
power generation is also available on SLX-P-PTU-A models).
These controllers are designed to control and monitor various
HVAC equipment such as fan coils, heat pumps, and ventilator
units, as well as chillers and boilers. Moreover, they are
suitable for any lighting control and power measurement
applications.
All of the controllers are based on the L
for peer-to-peer communication between controllers and are
®
L
M
certified.
ON
ARK
Unless otherwise indicated, the term PFCU is used
in this document to represent both the SLX-ASC-
PFCU and SLX-ASC-PFCU-A models. Likewise,
PTU represents both the SLX-P-PTU and SLX-P-
PTU-A models.
All of these controllers are built on a similar
platform, but have different numbers of outputs.
Moreover, each individual model has different
amounts of digital and/or universal outputs. For
more information on the specific layout and
functionality of each controller, please refer to their
individual technical specification sheets.
SLX Series
®
W
technology
ON
ORKS
Installation Instructions
Document No. 997-1002
Figure 1: SLX-ASC-PFCU-A.
Figure 2: SLX-P-PTU.
February 12, 2009
Page 1 of 8
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Summary of Contents for Siemens SLX-ASC-PFCU
- Page 1 Power Terminal Unit Free Programmable (PTU) controllers. The PFCU controllers are powered by 85-265VAC (24VAC power generation is also available on SLX-ASC-PFCU-A models). These controllers are designed to control fan coil unit applications with up to three fan speeds and to meet the requirements of both a two-pipe shared heating and cooling coil, and four-pipe heating and cooling coil system.
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Page 2: General Installation Requirements
Document No. 997-1002 Installation Instructions February 12, 2009 2. General Installation Requirements 4. General Wiring Recommendations For proper installation and subsequent operation of each Due to HIGH VOLTAGE, direct contact will controller, special attention following cause electrical shock or burn. Turn off power recommendations: before any kind of servicing. -
Page 3: Controller Dimensions
7. Power Wiring Voltage: 85-265VAC; 50-60Hz Figure 7: 10kΩ Potentiometer Input. Max. Consumption: 33VA (SLX-ASC-PFCU-A and SLX-P-PTU- When using a 100Ω input, the wire length should be kept short so as to avoid a possible temperature 20VA (SLX-ASC-PFCU and SLX-P-PTU) offset. - Page 4 Power Source. state outputs) and to control valve and damper actuators using stroke time or Pulse Width Modulation (PWM). On the SLX-ASC-PFCU-A and SLX-P-PTU-A, the • Triac output cables should be between 20 and onboard 24VAC output with a DC power supply can 18AWG.
- Page 5 Document No. 997-1002 Installation Instructions February 12, 2009 Cx-x Wiring Voltage Outputs Fuse Connect the 0 to 10VDC output according to the following Relay figure if an analog actuator is being controlled. 2-Line Main Power Disconnect Figure 14: Digital Triac Output with Ext. 85-265VAC Power Supply –...
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Page 6: Maintenance
Document No. 997-1002 Installation Instructions February 12, 2009 5. Disconnect the power to the controller and remove the jumper. 12. Memory Erase Jumper 6. Reconnect the power. The service LED will blink twice and become solid indicating that the controller is application- Each controller features a memory erase jumper that can be less. - Page 7 Document No. 997-1002 Installation Instructions February 12, 2009 15. Typical Fan Coil Application Wiring Diagram *4A – Fast-acting, high-breaking; 5 x 20mm *15A – Fast-acting, high-breaking; 6 x 32mm Fuse PART#: 216 004XP (Littelfuse) Fuse PART#: 314015P (Littelfuse) Fuse holder PART#: 3004100 (Phoenix Contact) Fuse holder PART#: 3004171 (Phoenix Contact) SLX Series Page 7 of 8...
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Page 8: Troubleshooting Guide
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. Other product or company names mentioned herein may be the trademarks of their respective owners. © 2009 Siemens Building Technologies, Inc. Siemens Building Technologies, Inc.