Models 8631-HM, 8631-HM-BAC, 8631-HC, 8631-HC-BAC

Models 8631-HM, 8631-HM-BAC, 8631-HC, 8631-HC-BAC

PRESSURA

ROOM PRESSURE MONITOR

MODELS 8631-HM/8631-HM-BAC

PRESSURA

ROOM PRESSURE CONTROLLER

MODELS 8631-HC/8631-HC-BAC

W/LON/BACNET

®

OPERATION AND SERVICE MANUAL

PRESSURA

ROOM PRESSURE MONITOR

MODELS 8631-HM/8631-HM-BAC

PRESSURA

ROOM PRESSURE CONTROLLER

MODELS 8631-HC/8631-HC-BAC

W/LON/BACNET

®

OPERATION AND SERVICE MANUAL

1980488, Revision J

December 2012

U.S. AND CANADA

Sales & Customer Service:

(800) 874-2811/(651) 490-2811

Fax:

(651) 490-3824

TSI Incorporated

ATTN: Customer Service

500 Cardigan Road

Shoreview, MN 55126

USA

OTHER COUNTRIES

Sales & Customer Service:

(001 651) 490-2811

Fax:

(001 651) 490-3824

E-MAIL

[email protected]

WEB SITE www.tsi.com

Copyright

TSI Incorporated / December 2012 / All rights reserved.

Part number 1980488 / Revision J

LIMITATION OF WARRANTY AND LIABILITY

Seller warrants the goods sold hereunder, under normal use and service as described in the operator's manual, shall be free from defects in workmanship and material for 24 months, or if less, the length of time specified in the operator's manual, from the date of shipment to the customer. This warranty period is inclusive of any statutory warranty. This limited warranty is subject to the following exclusions and exceptions: a. Hot-wire or hot-film sensors used with research anemometers, and certain other components when indicated in specifications, are warranted for 90 days from the date of shipment; b. Pumps are warranted for hour s of operation as set forth in product or operator’s manuals; c. Parts repaired or replaced as a result of repair services are warranted to be free from defects in workmanship and material, under normal use, for 90 days from the date of shipment; d. Seller does not provide any warranty on finished goods manufactured by others or on any fuses, batteries or other consumable materials. Only the original manufacturer's warranty applies; e. Unless specifically authorized in a separate writing by Seller, Seller makes no warranty with respect to, and shall have no liability in connection with, goods which are incorporated into other products or equipment, or which are modified by any person other than Seller.

The foregoing is IN LIEU OF all other warranties and is subject to the LIMITATIONS stated herein. NO OTHER

EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR PARTICULAR PURPOSE OR MERCHANTABILITY

IS MADE.

WITH RESPECT TO SELLER’S BREACH OF THE IMPLIED WARRANTY AGAINST

INFRINGEMENT, SAID WARRANTY IS LIMITED TO CLAIMS OF DIRECT INFRINGEMENT AND

EXCLUDES CLAIMS OF CONTRIBUTORY OR INDUCED INFRINGEMENTS. BUYER’S EXCLUSIVE

REMEDY SHALL BE THE RETURN OF THE PURCHASE PRICE DISCOUNTED FOR REASONABLE WEAR

AND TEAR OR AT SELLER’S OPTION REPLACEMENT OF THE GOODS WITH NON-INFRINGING

GOODS.

TO THE EXTENT PERMITTED BY LAW, THE EXCLUSIVE REMEDY OF THE USER OR BUYER, AND THE

LIMIT OF SELLER'S LIABILITY FOR ANY AND ALL LOSSES, INJURIES, OR DAMAGES CONCERNING THE

GOODS (INCLUDING CLAIMS BASED ON CONTRACT, NEGLIGENCE, TORT, STRICT LIABILITY OR

OTHERWISE) SHALL BE THE RETURN OF GOODS TO SELLER AND THE REFUND OF THE PURCHASE

PRICE, OR, AT THE OPTION OF SELLER, THE REPAIR OR REPLACEMENT OF THE GOODS. IN THE

CASE OF SOFTWARE, SELLER WILL REPAIR OR REPLACE DEFECTIVE SOFTWARE OR IF UNABLE TO

DO SO, WILL REFUND THE PURCHASE PRICE OF THE SOFTWARE. IN NO EVENT SHALL SELLER BE

LIABLE FOR LOST PROFITS OR ANY SPECIAL, CONSEQUENTIAL OR INCIDENTAL DAMAGES. SELLER

SHALL NOT BE RESPONSIBLE FOR INSTALLATION, DISMANTLING OR REINSTALLATION COSTS OR

CHARGES. No Action, regardless of form, may be brought against Seller more than 12 months after a cause of action has accrued. The goods returned under warranty to Seller's factory shall be at Buyer's risk of loss, and will be returned, if at all, at Seller's risk of loss.

Buyer and all users are deemed to have accepted this LIMITATION OF WARRANTY AND LIABILITY, which contains the complete and exclusive limited warranty of Seller. This LIMITATION OF WARRANTY AND

LIABILITY may not be amended, modified or its terms waived, except by writing signed by an Officer of Seller.

SERVICE POLICY

Knowing that inoperative or defective instruments are as detrimental to TSI as they are to our customers, our service policy is designed to give prompt attention to any problems. If any malfunction is discovered, please contact your nearest sales office or representative, or call TSI's Customer Service department at (800) 874-

2811.

TRADEMARKS

TSI, TSI logo, and P

RES

S

URA

are trademarks of TSI Incorporated.

LonWorks is a registered trademark of Echelon

®

Corporation.

BACnet is a registered trademark of ASHRAE.

Microsoft is a registered trademark of Microsoft Corporation. ii

CONTENTS

HOW TO USE THIS MANUAL ..................................................................................................... IV

PART ONE ..................................................................................................................................... 1

User Basics .......................................................................................................... 1

The Instrument ..................................................................................................... 1

Operator Panel ..................................................................................................... 3

Alarms................................................................................................................... 5

Before Calling TSI ................................................................................................ 6

PART TWO ..................................................................................................................................... 7

Technical Section ................................................................................................. 7

Software Programming ......................................................................................... 7

Menu and Menu Items ........................................................................................ 12

Calibration .......................................................................................................... 32

Maintenance and Repair Parts ........................................................................... 34

Troubleshooting Section ..................................................................................... 36

APPENDIX A ................................................................................................................................ 45

Specifications ..................................................................................................... 45

APPENDIX B ................................................................................................................................ 47

Network Communications .................................................................................. 47

Model 8631-HM LonWorks

®

8631-HM LonWorks

®

Model 8631-HC LonWorks

®

8631-HC LonWorks

®

8631 BACnet

®

Model 8631-HM BACnet

®

Model 8631-HC BACnet

®

Node Object .......................................................... 47

Object .............................................................................. 48

Node Object .......................................................... 49

Object ............................................................................... 50

MS/TP Protocol Implementation Conformance Statement ........ 51

MS/TP Object Set ..................................................... 53

MS/TP Object Set ..................................................... 54

APPENDIX C ................................................................................................................................ 55

Wiring Diagrams ................................................................................................. 55

APPENDIX D ................................................................................................................................ 63

Access Codes ..................................................................................................... 63 iii

How to Use This Manual

The PresSura

™ Room Pressure Monitor/Controller Operation and Service Manual is divided into

two parts. Part One describes how the PresSura unit functions and how to interface with the

device. This section should be read by users, facilities staff, and anyone who requires a basic understanding of how the PresSura monitor operates.

Part two describes the technical aspects of the product which includes operation, calibration,

configuration, maintenance, and troubleshooting. Part Two should be read by personnel programming or maintaining the unit. TSI recommends thoroughly reading this manual before changing any software items.

NOTE: This operation and service manual assumes proper PresSura monitor installation. Refer to the Installation Instructions to determine if the PresSura monitor has been properly installed. iv

PART ONE

User Basics

Reading product manuals should not be a difficult and time-consuming process. This section provides a brief but thorough overview of the PresSura

™ product by maximizing information with minimal reading. These few pages explain the purpose (The Instrument), and the operation

(Useful User Information, Digital Interface Module, Alarms) of the unit. Technical product information is available in Part Two of the manual. The manual focuses on hospital isolation rooms, but the product information is accurate for any room pressure application.

The Instrument

PresSura monitor measure s and reports “room pressure.” Proper room pressure can control airborne contaminants that can adversely affect patients and hospital staff. For example, tuberculosis (TB) isolation rooms need negative room pressure (air flowing into the room), to minimize TB exposure to staff and other patients. Conversely, surgical areas and bone marrow patient rooms need positive room pressure (air flowing out of the room), to keep out contaminants that may adversely affect the patient.

Room pressure, or pressure differential, is created when one space (hallway) is at a different pressure than an adjoining space (patient room). When a pressure differential is created between two spaces, air is forced to flow from the higher pressure space to the lower pressure space. The direction of air flow is one component of proper room pressure. The second component of room pressure is the speed or how fast is the air moving between the two spaces. The PresSura monitor provides both pieces of information by measuring whether the air is flowing into or out of a room, and the speed of the air.

Negative room pressure is present when air flows from a hallway/ante room into the patient room.

If air flows from the patient room into the hallway/ante room the room is under positive pressure.

Figure 1 gives a graphic example of positive and negative room pressure.

Negative Positive

Figure 1: Room Pressure

An example of negative pressure is a bathroom with an exhaust fan. When the fan is turned on, air is exhausted out of the room creating a slight negative pressure in the bathroom compared to the hallway. This pressure differential forces air to flow from the hallway into the bathroom.

User Basics

1

The PresSura device informs the staff when the room is under proper pressure, and provides alarms when the room pressure is inadequate. If the room pressure is in the safe range, a green light is on. If the pressure is inadequate, a red alarm light and audible alarm turn on.

The PresSura monitor consists of two pieces: a pressure sensor and a Digital Interface Module

(DIM). The pressure sensor is mounted above the doorway entrance to the isolation room.

Usually the DIM is mounted near the entrance to the isolation room or at the nursing station. The pressure sensor continuously measures the room pressure and provides room pressure information to the DIM. The DIM continuously reports the room pressure and activates the alarms when necessary. PresSura monitor is a continuous measuring system providing instant information on the room pressure.

Useful User Information

The DIM has a green light and red light to indicate room pressure status. The green light is on when the room has proper room pressure. The red light comes on when an alarm condition exists.

Sliding the door panel to the right reveals a digital display and keypad (Figure 2). The display shows detailed information about room pressure, alarms, etc. The keypad allows you to test the device, put the device into emergency mode, and program or change the device parameters.

Figure 2: Digital Interface Module (DIM)

PresSura monitor has two levels of user information:

1. PresSura monitor has a red light and green light to provide continuous information on room pressure status.

2. PresSura monitor has a hidden operator panel providing detailed room status information, self-testing capabilities, and access to the software programming functions.

NOTE: The unit provides continuous room pressure status through the red and green light. The operator panel is normally closed unless further information on room pressure status is needed, or software programming is required.

2 Part One

Operator Panel

The DIM in Figure 3 shows the location of the digital display, keypad and lights. An explanation of the operator panel follows the figure.

Figure 3: PresSura

Operator Panel - Open

Green / Red Light

The green light is on when all the conditions for proper room pressure are adequate. This light indicates the isolation room is operating safely. If any of the room pressure conditions cannot be satisfied the green light turns off, and the red alarm light turns on.

Operator Panel

A cover hides the operator panel. Sliding the door panel to the right exposes the operator panel

(Figure 2).

Digital Display

The alphanumeric digital display is a two line display that indicates actual room pressure

(positive, negative or no isolation), alarm status, menu options, and error messages. In normal operation (green light is on), the display continuously scrolls information about room pressure, and other variables programmed; flow, air changes per hour, etc. The variables that scroll depend on the model of PresSura monitor purchased and options installed.

As an example, if an alarm condition occurs, the variable that normally scrolls

PRESSURE PRESSURE

NORMAL will change to read ALARM = *

* will state type of alarm; low pressure, high pressure, flow

When programming the unit, the display changes and now shows menus, menu items, and current value of the item, depending on the specific programming function being performed.

Keypad

The keypad has six keys. The gray keys with black letters are user information keys. In normal operation these keys are active. Additionally, the red emergency key is active. The gray keys with blue characters are used to program the unit. A thorough description of each key is given below.

User Keys - Gray with Black Letters

The four keys with black letters provide you information without changing the operation or the function of the unit.

User Basics

3

TEST Key

The TEST key initiates an instrument self-test. Pressing the TEST key activates a scrolling sequence on the display that shows the product model number, software version, and all setpoint and alarm values. The unit then performs a self test that tests the display, indicator lights, audible alarm, and internal electronics to ensure they are operating properly. If a problem with the unit exists, DATA ERROR is displayed. You should have qualified personnel determine the problem with the unit.

RESET Key

The RESET key performs three functions. 1) Resets the alarm light, alarm contacts, and audible alarm when in a latched or non automatic reset mode. The room pressure must be in the safe or normal range before the RESET key will operate. 2) Resets the

emergency function after the emergency key has been pressed (see EMERGENCY key).

3) Clears any displayed error messages.

MUTE Key

The MUTE key temporarily silences the audible alarm. The time the alarm is temporarily

silenced is programmable by you (see MUTE TIMEOUT ). When the mute period ends,

the audible alarm turns back on if the alarm condition is still present. NOTE: You can

program the audible alarm to be permanently turned off (see AUDIBLE ALM ).

AUX Key

The AUX key is active only in specialty applications and is not used on the standard

PresSura monitor. If the AUX key is used, a separate manual supplement explains the

AUX key function.

Programming Keys - Gray with Blue Characters

The four keys with blue print are used to program or configure the unit to fit a particular application.

WARNING: Pressing these keys will change how the unit functions, so please thoroughly review the manual before changing menu items.

MENU Key

The MENU key performs three functions. 1) Provides access to the menus when in the normal operating mode. 2) When the unit is being programmed, the MENU key acts as an escape key to remove you from an item or menu, without saving data. 3) Returns the

unit to the normal operating mode. The MENU key is further described in the Software

Programming section of this manual.

SELECT Key

The SELECT key performs three functions. 1) Provides access to specific menus.

2) Provides access to menu items. 3) Saves data. Pressing the key when finished with a menu item saves the data, and exits you out of the menu item.

/Keys

The / keys are used to scroll through the menus, menu items, and through the range of item values that can be selected. Depending on the item type, the values may be numerical, specific properties (on / off), or a bar graph.

4 Part One

Emergency Key - Red with Black Letters

EMERGENCY Key

The red EMERGENCY key puts the controller into emergency mode. If the room is under negative room pressure control, the emergency mode will maximize the negative pressure. Conversely, if the room is under positive room pressure control the emergency mode will maximize the positive pressure.

Pressing the EMERGENCY key causes the display to flash ”EMERGENCY”, the red alarm light to flash on and off, and the audible alarm to beep intermittently. To return to control mode press the EMERGENCY key or the RESET key.

Alarms

PresSura monitor has visual (red light) and audible alarms to inform you of changing conditions.

The alarm levels (setpoints) are determined by hospital personnel, which could be the infection control group, charge nurse, or a facilities group depending on the hospital organization.

The alarms, audible and visual, will activate whenever the preset alarm level is reached.

Depending on the PresSura model installed, programmed alarms will activate when room pressure is low or inadequate, when room pressure is high or too great, or when the supply or exhaust air flow is insufficient. When the isolation room is operating safely, no alarms will sound.

Example: The low alarm is preset to activate when the room pressure reaches -0.001 inches

H

2

O. When the room pressure drops below -0.001 inches H

2

O (gets closer to zero), the audible and visual alarms activate. The alarms turn off (when set to unlatched) when the unit returns to the safe range which is defined as negative pressure greater than -0.001 inches H

2

O.

Visual Alarm Operation

The red light on the front of the unit indicates an alarm condition. The red light is on for all alarm conditions, low alarms, high alarms, and emergency. The light is on continuously in a low or high alarm condition, and flashes in an emergency condition.

Audible Alarm Operation- EMERGENCY key

When the EMERGENCY key is pressed, the audible alarm beeps intermittently until the

EMERGENCY or RESET key is pressed terminating the emergency alarm. The emergency alarm cannot be silenced by pressing the MUTE key.

Audible Alarms - All Except Emergency

The audible alarm is continuously on in all low and high alarm conditions. The audible alarm can be temporarily silenced by pressing the MUTE key. The alarm will be silent for a period of time

(see MUTE TIMEOUT to program time period). When the timeout period ends, the audible alarm

turns back on if the alarm condition is still present.

You can program the audible alarm to be permanently turned off (see AUDIBLE ALM ). The red

alarm light still turns on in alarm conditions when audible alarm is turned off.

The audible and visual alarms can be programmed to either automatically turn off when the unit

returns to the safe range or to stay in alarm until the RESET key is pressed (See ALARM

RESET ).

User Basics

5

Before Calling TSI

The manual should answer most questions and resolve most problems you may encounter. If you need assistance or further explanation, contact your local TSI representative or TSI. TSI is committed to providing high quality products backed by outstanding service.

Please have the following information available prior to contacting your authorized TSI

Manufacturer's Representative or TSI:

- Model number of unit

*

- Software revision level

*

- Facility where unit is installed

8631-____

* First two items that scroll when TEST key is pressed

Due to the different PresSura models available, the above information is needed to accurately answer your questions.

For the name of your local TSI representative or to talk to TSI service personnel, please call TSI at (800) 874-2811 (U.S. and Canada) or (001 651) 490-2811 (other countries).

Prior to shipping any components to TSI for service or repair, please utilize our convenient

Return Material Authorization (RMA) Form, which is available online at http://service.tsi.com

.

6 Part One

PART TWO

Technical Section

The PresSura monitor is ready to use after being properly installed. The pressure sensor is factory calibrated prior to shipping, and should not need adjustment. The Digital Interface Module

(DIM) is programmed with a default configuration that can be easily modified to fit your application.

The Technical section is separated into five parts that cover all aspects of the unit. Each section

is written as independently as possible to minimize flipping back and forth through the manual for an answer.

The Software Programming section explains the programming keys on the DIM. In addition, the

programming sequence is described, which is the same regardless of the menu item being changed. At the end of this section is an example of how to program the DIM.

The Menu and Menu Item section lists all of the software items available to program and change.

The items are grouped by menu which means all setpoints are in one menu, alarm items in another, etc. The menu items and all related information including programming name, description of menu of item, range of programmable values, and how the unit shipped from the factory (default values). This manual covers two models. The features unique to the monitor unit are detailed in Figure 5. The features unique to the controller unit are detailed in Figure 6.

The Calibration section describes the required technique to compare the pressure sensor reading

to a thermal anemometer, and how to adjust the zero and span to obtain an accurate calibration.

This section also describes how to zero a TSI flow station transducer.

The Maintenance and Repair Part section covers all routine maintenance of equipment, along

with a list of repair parts.

The Troubleshooting section is split into two areas: Mechanical operation of the unit and system

performance. Many external variables will affect how the unit functions so it is critical to first determine if the unit is having mechanical problems - i.e., no display on unit, remote alarms don’t function, dampers don’t modulate, etc. If problems still exist, look for performance problems (i.e., doesn’t seem to read correctly, display fluctuates, etc.). The first step is to determine that the system is mechanically operating correctly, followed by modifying the configuration to eliminate the performance problems.

Software Programming

Programming the PresSura monitor is quick and easy if the programming keys are understood, and the proper keystroke procedure is followed. The programming keys are defined first, followed by the required keystroke procedure. At the end of this section is a programming example.

NOTE: It is important to note that the unit is always operating (except when checking the control output) when programming. When a menu item value is changed, the new value takes effect immediately after saving the change, not when the unit returns to normal operating mode.

Technical Section

7

This section covers programming the instrument through the keypad and display. If programming through RS-

485 communications, use the host computer’s procedure. The changes take place immediately upon saving data in the instrument.

Programming Keys

The four keys with blue characters (refer to Figure 4) are used to program or configure the unit to fit your particular application. Programming the instrument will change how the unit functions, so thoroughly review the items to be changed.

8

Figure 4. Programming Keys

MENU Key

The MENU key has three functions.

1. The MENU key is used to gain access to the menus when the unit is in the normal operating mode. Pressing the key once exits the normal operating mode and enter the programming mode. When the MENU key is first pressed, the first two menus are listed.

2. When the unit is being programmed, the MENU key acts like an escape key.

- When scrolling through the main menu, pressing the MENU key returns the unit to standard operating mode.

- When scrolling through the items on a menu, pressing the MENU key returns you to the list of menus.

- When changing data in a menu item, pressing the MENU key escapes out of the item without saving changes.

3. When programming is complete, pressing the MENU key returns the unit to normal operating mode.

SELECT Key

The SELECT key has three functions.

1. The SELECT key is used to gain access to specific menus. To access a menu, scroll through the menus (using arrow keys) and place the flashing cursor on the desired menu. Press the SELECT key to select the menu. The first line on the display will now be the selected menu, and the second line shows the first menu item.

2. The SELECT key is used to gain access to specific menu items. To access a menu item, scroll through the menu items until item appears. Press the SELECT key and the menu item now appears on the first line of the display, and the second line shows the item value.

Part Two

3. Pressing the SELECT key when finished changing an item saves the data and exits back to the menu items. An audible tone (3 beeps) and visual display

(“saving data”) gives confirmation data is being saved.

/ Keys

The / keys are used to scroll through the menus, menu items, and through the range of item values that can be selected. Depending on the item type, the values may be numerical, specific properties (on / off), or a bar graph.

NOTE: When programming a menu item, continuously pressing the arrow key scrolls through the values faster than if the arrow key is pressed and released.

Keystroke Procedure

1.

2.

The keystroke operation is consistent for all menus. The sequence of keystrokes to follow is the same regardless of the menu item being changed.

Press the MENU key to access the main menu.

Use the / keys to scroll through the menu choices. The blinking cursor needs to be on the first letter of the menu you want to access.

3.

4.

Press the SELECT key to access chosen menu.

The menu selected is now displayed on line one, and the first menu item is displayed on line 2. Use the / keys to scroll through the menu items. Scroll through the menu items until desired item is displayed.

5.

Press the SELECT key to access chosen item. The top line of display shows menu item selected, while the second line shows current item value.

6.

7.

Use the / keys to change item value.

Save the new value by pressing the SELECT key (pressing the MENU key exits out of menu function without saving data).

8.

9.

Press the MENU key to exit current menu, and return to main menu.

Press the MENU key again to return to normal instrument operation.

If more than one item is to be changed, skip steps 8 and 9 until all changes are complete. If more items in the same menu are to be changed, scroll to them after saving the data (step 7). If other menus need to be accessed, press the MENU key once to access a list of menus. The instrument is now at step 2 of the keystroke sequence.

Technical Section

9

Programming Example

The following example demonstrates the keystroke sequence explained above. In this example the positive pressure low alarm setpoint will be changed from +0.00035 inches H

2

O to +0.00050 inches H

2

O.

Unit is in normal operation scrolling room pressure, flows, etc. Pressure is shown in this case:

PRESSURE

+.00085

” H

2

O

Press the MENU key to gain access to the menus.

MENU

The first 2 menu choices are displayed.

SETPOINTS

ALARM

Press the  key once. Blinking cursor should be on A of Alarm. Press the

SELECT

SELECT key to access the ALARM menu.

NOTE: Blinking cursor must be on A in

Alarm.

Line 1 shows menu selected.

Line 2 shows first menu item.

ALARM

NEG LOW ALM

Press the  key until POS LOW ALM is shown on display.

Menu selected

Item name

ALARM

POS LOW ALM

Press the SELECT key to access the positive low alarm setpoint. The item name (POS LOW ALM) is now displayed on line 1, and the item's current value is displayed on line 2.

SELECT

Item Name

Current Value

POS LOW ALM

+.00035” H

2

O

Press the  key to change the positive low alarm setpoint to 0.00050 inches

H

2

O.

POS LOW ALM

+.00050” H

2

O

10 Part Two

Press the SELECT key to save the new positive low alarm setpoint.

Three short beeps sound indicating that the data is being saved.

SELECT

POS LOW ALM

Saving Data

Immediately after the data is saved, the

PresSura monitor returns to the menu level displaying the menu title on the top line of the display and the menu item on the bottom line (goes to step 3).

ALARM

POS LOW ALM

WARNING: If the MENU key was pressed instead of the SELECT key, the new data would not have been saved, and the PresSura monitor would have escaped back to the menu level shown in step 3.

Press the MENU key once to return to the menu level:

MENU

Press the MENU key a second time to return to the normal operating level:

ALARM

CONFIGURE

MENU

Unit is now back in normal operation

PRESSURE

+.00085” H

2

O

Technical Section

11

Menu and Menu Items

The PresSura Room Pressure Monitor/Controller is a very versatile device which can be configured to meet your specific application. This section lists all of the menu items available to program and change (except diagnostics menu). Changing any item is accomplished by using the keypad, or if communications are installed through the LonWorks

®

Communications port. If

you are unfamiliar with the keystroke procedure, please see Software Programming for a detailed

explanation. This section provides the following information:

Complete list of menu and all menu items

Gives the menu or programming name

Defines each menu item’s function; what it does, how it does it, etc.

Gives the range of values that can be programmed

Gives default item value (how it shipped from factory)

The menus covered in this section are divided into groups of related items to ease programming.

As an example, all setpoints are in one menu, alarm information in another, etc. The manual follows the menus as programmed in the controller. The menu items are always grouped by menu and then listed in menu item order, not alphabetical order. Figure 5 shows a chart of all the

Model 8631-HM monitor menu items. Figure 6 shows the menu items available on the

Model 8631-HC controller.

ALARM

CONFIGURE

CALIBRATION INTERFACE

NEG LOW ALM

NEG HIGH ALM

POS LOW ALM

POS HIGH ALM

MIN CFM ALM

2 LOW ALM

2 HIGH ALM

ALARM RESET

AUDIBLE ALM

ALARM DELAY

MUTE TIMEOUT

DIAGNOSTICS

*

ROOM MODE

DISPLAY AVG

UNITS

DUCT AREA

ROOM VOLUME

2 SENSOR

FLO STA TYPE

TOP VELOCITY

K FACTOR

ACCESS CODES

SENSOR SPAN

FLO ZERO

2SENOR SPAN

ELEVATION

LON**

MAC ADDRESS**

MAC ID**

OUTPUT RANGE

OUTPUT SIG

SENSOR INPUT

SENSOR STAT

2SENSOR IN

2SENSOR STAT

ANALOG OUT

KEY INPUT

FLOW INPUT

ALARM RELAY

* Menu items located in the Troubleshooting section.

** LON only appears as a menu option for the 8631 that includes a LonWorks

®

board. MAC ADDRESS and

MAC ID only appear as menu options for the 8631 that includes a BACnet® board.

Figure 5: Menu Items

—Model 8631-HM Monitor

®LonWorks is a registered trademark of Echelon

®

®BACnet is a registered trademark of ASHRAE.

Corporation.

12 Part Two

SETPOINTS

ALARM

CONFIGURE CALIBRATION

NEG SETPOINT

POS SETPOINT

MIN EXH SET

DAMPER SET

MIN EXH DAMP

MAX EXH DAMP

NEG LOW ALM

NEG HIGH ALM

POS LOW ALM

POS HIGH ALM

MIN EXH ALM

2 LOW ALM

2 HIGH ALM

ALARM RESET

AUDIBLE ALM

ALARM DELAY

MUTE TIMEOUT

INTERFACE

ROOM MODE

DISPLAY AVG

UNITS

EXH DCT AREA

ROOM VOLUME

2 SENSOR

FLO STA TYPE

TOP VELOCITY

K FACTOR

ACCESS CODES

SENSOR SPAN

EXH FLO ZERO

2SENSOR SPAN

ELEVATION

CONTROL

DIAGNOSTICS

*

SPEED

SENSITIVITY

CONTROL SIG

KC VALUE

TI VALUE

LON**

MAC ADDRESS**

MAC ID**

OUTPUT RANGE

OUTPUT SIG

CONTROL OUT

SENSOR INPUT

SENSOR STAT

2SENSOR IN

2SENSOR STAT

ANALOG OUT

KEY INPUT

EXH FLOW IN

ALARM RELAY

* Menu items located in Troubleshooting section.

** LON only appears as a menu option for the 8631 that includes a LonWorks

®

board. MAC ADDRESS and

MAC ID only appear as menu options for the 8631 that includes a BACnet

®

board.

Figure 6: Menu Items

—Model 8631-HC Controller

®LonWorks

®

is a registered trademark of Echelon

®

Corporation.

Technical Section

13

SETPOINTS MENU

Available on Model 8631-HC units only

NEGATIVE

PRESSURE

SETPOINT

POSITIVE

PRESSURE

SETPOINT

NEG

SETPOINT

POS

SETPOINT

The NEG SETPOINT item sets the negative pressure control setpoint. The PresSura controller will maintain the room under negative pressure when item is enabled.

This item is enabled when the TSI key switch is in negative room pressure position, or when negative is selected in ROOM

MODE item.

A negative setpoint equal to zero will turn off the negative low pressure alarm. The control output signal will be super slow (no

PID) when maintaining neutral or zero pressure.

The POS SETPOINT item sets the positive pressure control setpoint. The PresSura controller will maintain the room under positive pressure when item is enabled.

This item is enabled when the TSI key switch is in positive room pressure position or when positive is selected in ROOM MODE item.

A positive setpoint equal to zero will turn off the positive low pressure alarm. The control output signal will be super slow (no

PID) when maintaining neutral or zero pressure.

0 to -

0.19500” H

2

O

0 to +0.19500” H

2

O

-

0.00100”

H

2

O

+0.00100”

H

2

O

SETPOINTS MENU

(continued) Available on Model 8631-HC units only

MINIMUM

EXHAUST

FLOW

SETPOINT

(cont.)

DAMPER

SETPOINT

MINIMUM

EXHAUST

DAMPER

POSITION

MIN EXH

SET (cont.)

DAMPER

SET

MIN EXH

DAMP

The MIN EXH SET item sets the minimum exhaust flow setpoint

(CFM). This item prevents the exhaust flow from going below a preset minimum CFM. When a minimum flow setpoint is programmed, the display automatically scrolls the actual exhaust flow as part of the display scroll sequence. If a zero valve is entered, the exhaust flow will not scroll on the display.

The minimum exhaust flow setpoint overrides the pressure control setpoint, so adequate or safe room pressure may not be maintained (pressure alarm turns on, if set).

A TSI flow station is required to make the flow measurement and enable this function.

The flow station and control damper must be mounted in the exhaust duct for this item to function properly.

The DAMPER SET item functions when the controller is in no isolation mode. This item moves the control damper to a preset position. The damper can be positioned full open, partially open, or fully closed.

This item is enabled when the TSI key switch is in neutral room pressure position or when no isolation is selected in ROOM

MODE item.

The MIN EXH DAMP menu item is used to set the exhaust damper minimum opening. The damper will not close more than this setpoint.

0, 400 ft/min x duct area2832 ft/min x duct area. The duct area must be entered in square feet (ft

2

).

METRIC UNITS

0, 2.0 m/s x duct area to 14.4 m/s x duct area.

The duct area must be entered in square meters (m

2

).

0 to 255

0% OPEN to

100% OPEN

0

150 (1/2 open)

0% OPEN

SETPOINTS MENU

(continued) Available on Model 8631-HC units only

MAXIMUM

EXHAUST

DAMPER

POSITION

MAX EXH

DAMP

The MAX EXH DAMP menu item is used to set the exhaust damper maximum opening. The damper will not open more than this setpoint.

END OF

MENU

The END OF MENU item informs you that the end of a menu has been reached. You can either scroll back up the menu to make changes, or press the SELECT or MENU key to exit out of the menu.

0% OPEN to

100% OPEN

100% OPEN

NEGATIVE

LOW

PRESSURE

ALARM

NEGATIVE

HIGH

PRESSURE

ALARM

NEG LOW

ALM

NEG HIGH

ALM

The NEG LOW ALM item sets the negative low pressure alarm setpoint. A low alarm condition is defined as when the magnitude of the room pressure falls below or goes in the opposite direction of the NEG LOW ALM setpoint.

This item is enabled when the TSI key switch is in negative room pressure position or when negative is selected in ROOM MODE item.

The NEG HIGH ALM item sets the negative high pressure alarm setpoint. A high alarm condition is defined as when the magnitude of the room pressure rises above the NEG HIGH

ALM setpoint.

This item is enabled when the TSI key switch is in negative room pressure position or when negative is selected in ROOM

MODE item.

OFF, 0 to -

0.19500”

H

2

O

OFF, 0 to -

0.19500”

H

2

O

OFF

OFF

ALARM MENU

(continued)

POSITIVE

LOW

PRESSURE

ALARM

POSITIVE

HIGH

PRESSURE

ALARM

MINIMUM

DUCT FLOW

ALARM

Monitor models only

MINIMUM

EXHAUST

DUCT FLOW

ALARM

Controller models only

MIN CFM

ALM

MIN EXH

ALM

POS LOW

ALM

POS HIGH

ALM

The POS LOW ALM item sets the positive low pressure alarm setpoint. A low alarm condition is defined as when the magnitude of the room pressure falls below or goes in the opposite direction of the POS LOW ALM setpoint.

This item is enabled when the TSI key switch is in positive room pressure position or when positive is selected in ROOM MODE item.

The POS HIGH ALM item sets the positive high pressure alarm setpoint. A high alarm condition is defined as when the magnitude of the room pressure rises above the POS HIGH

ALM setpoint.

This item is enabled when the TSI key switch is in positive room pressure position or when positive is selected in ROOM MODE item.

The MIN CFM ALM item sets the duct’s flow alarm setpoint. A minimum flow alarm is defined as when the duct flow is less than the MIN CFM ALM setpoint.

OFF, 0 to 0.19500”

H

2

O

OFF, 0 to

0.19500”

H

2

O

OFF, 0 to 2832 ft/MIN times the duct area in square feet (ft

2

)

The MIN EXH ALM item sets the exhaust duct’s flow alarm setpoint. A minimum flow alarm is defined as when the exhaust duct flow is less than the MIN EXH ALM setpoint.

OFF, 0 to 2832 ft/MIN times the exhaust duct area in square feet (ft

2

)

OFF

OFF

OFF

OFF

ALARM MENU

(continued)

SECOND

SENSOR LOW

ALARM

2 LOW ALM

The 2 LOW ALM item sets the second sensor’s low alarm setpoint. A low alarm condition is defined as when the magnitud e of the second sensor’s room pressure falls below or goes in the opposite direction of the 2 LOW ALM setpoint. The alarm can be a negative or positive pressure alarm setpoint.

The second sensor low and high alarms must be programmed for the same pressure direction; positive or negative. In addition, the PresSura monitor has a minimum dead band of 40 ft/min between the second sensor low and high alarms. The dead band helps prevent nuisance alarms.

The second sensor monitors the room pressure of a second space (typically an ante room), and is not part of the primary sensor or control sequence. This alarm is on when the controller is in positive or negative mode.

This item is enabled when the second pressure sensor item is

enabled (see menu item 2 SENSOR ).

OFF, 0 to +0.1

9500”

H

2

O or 0 to -

0.19500” H

2

O

OFF

ALARM MENU

(continued)

SECOND

SENSOR

HIGH ALARM

ALARM

RESET

AUDIBLE

ALARM

2 HIGH ALM

The 2 HIGH ALM item sets the second sensor’s high alarm setpoint. A high alarm condition is defined as when the magnitude of the secon d sensor’s room pressure rises above the 2 HIGH ALM setpoint. The alarm can be a negative or positive pressure alarm setpoint.

The second sensor low and high alarms must be programmed for the same pressure direction; positive or negative. In addition, the PresSura monitor has a minimum dead band of 40 ft/min between the second sensor low and high alarms. The dead band helps prevent nuisance alarms.

ALARM

RESET

The second sensor monitors the room pressure of a second space (typically and ante room), and is not part of the primary sensor or control sequence. This alarm is on when the controller is in positive or negative mode.

This item is enabled when the second pressure sensor item is

enabled (see menu item 2 SENSOR ).

The ALARM RESET item selects how the alarms terminate after the unit returns to control setpoint (pressure or flow).

UNLATCHED (alarm follow) automatically resets the alarms when the unit reaches control setpoint. LATCHED requires the staff to press the RESET key after the unit returns to control setpoint. The ALARM RESET affects the audible alarm, visual alarm, and relay output, which means all are latched or unlatched.

AUDIBLE

ALM

The AUDIBLE ALM item selects whether the audible alarm is turned ON or OFF. Selecting ON requires the staff to press the

MUTE key to silence the audible alarm. Selecting OFF permanently mutes all audible alarms, except when the

EMERGENCY key is pressed.

OFF, 0 to +0.195

00”

H

2

O or 0 to -

0.19500” H

2

O

LATCHED

OR

UNLATCHED

ON or OFF

OFF

UNLATCHED

ON

ALARM MENU

(continued)

ALARM

DELAY

MUTE

TIMEOUT

ALARM

DELAY

MUTE

TIMEOUT

The ALARM DELAY determines the length of time the alarm is delayed after an alarm condition has been detected. This delay affects the visual alarm, audible alarm, and relay outputs. An

ALARM DELAY prevents nuisance alarms from staff opening and closing doors, etc.

The MUTE TIMEOUT determines the length of time the audible alarm is silenced after the MUTE key is pressed. This delay temporarily mutes the audible alarm.

NOTE: If the PresSura monitor is in alarm when MUTE

TIMEOUT expires, the audible alarm turns on. When the PresSura monitor returns to the safe range, the

MUTE TIMEOUT is canceled. If the room goes back into an alarm condition, the MUTE key must be pressed again to mute the audible alarm.

20 to 600 SECONDS

5 to 30 minutes

20

SECONDS

5 minutes

END OF

MENU

The END OF MENU item informs you that the end of a menu has been reached. You can either scroll back up the menu to make changes, or press the SELECT or MENU key to exit out of the menu.

ALARM CONSTRAINTS

There are a number of constraints built into the software that prevent users from programming conflicting alarm information. These are as follows:

1. Room mode. The positive pressure alarms are only active when positive control is selected. Negative pressure alarms are only active when negative control is selected. In no isolation mode all alarms are turned off.

2. The PresSura monitor is programmed not to allow the pressure alarms to be progra mmed within 20 ft/min (0.00028” H

2

O at 0.001” H

2

O) of the control setpoint.

Example: The control SETPOINT is set at -

H

2

-

0.00128” H

2

O.

0.001” H

2

O. The LOW ALARM setpoint cannot be set higher than -

0.00072”

O. Conversely if your control SETPOINT is set at -

0.001” H

2

O, the HIGH ALARM setpoint cannot be set lower than

3. The minimum flow alarms must be programmed to be at least 50 CFM less than the minimum flow setpoint.

4. Second sensor alarms can be programmed for positive or negative pressure. Both the second sensor low and high alarms must be programmed either positive or negative. The second sensor alarms ignore rule 1 above.

5.

6.

7.

Alarms do not terminate until the controller returns to setpoint. The setpoint must be slightly exceeded before alarm will terminate.

The ALARM RESET item selects how the alarms will terminate when controller returns to the safe range. The pressure and flow alarms all terminate the same; they are either latched or unlatched. If unlatched is selected the alarms automatically turn off when the value slightly exceeds the control setpoint. If latched is selected the alarms will not terminate until the controller returns to setpoint and the RESET key is pressed.

There is a programmable ALARM DELAY that determines how long to delay before activating the alarms. This delay affects all alarms, pressure and flow.

The MUTE TIMEOUT item temporarily turns the audible alarm off for all pressure and flow alarms. 8.

9. The display can only show one alarm message. Therefore, the controller has an alarm priority system, with the highest priority alarm being displayed. If multiple alarms exist, the lower priority alarms will not display until after the highest priority alarm has been eliminated. The alarm priority is as follows:

Pressure sensor - low alarm

Pressure sensor - high alarm

Flow station - minimum exhaust flow

Flow station - minimum supply flow

Second pressure sensor - low alarm

Second pressure sensor - high alarm

Data error

10. The low and high alarms are absolute values. The chart below shows how the values must be programmed in order to operate correctly.

-0.2 inches H

2

O

(maximum negative)

0

+0.2 inches H

2

O

(maximum positive)

High

Negative

Alarm

Negative

Setpoint

Low

Negative

Alarm

Zero Positive

Setpoint

The value of each setpoint or alarm is unimportant (except for small dead band) in graph above. It is important to understand that the negative low alarm must be between zero (0) pressure and the negative setpoint, and that the high alarm is a greater negative (positive) value than setpoint.

Low

Positive

Alarm

High

Positive

Alarm

ROOM MODE

DISPLAY

AVERAGE

UNITS

DUCT AREA

Monitor models

only

ROOM

MODE

DISPLAY

AVG

UNITS

DUCT AREA

The ROOM MODE item selects the room pressure direction.

This item enables all related alarms, setpoints, etc. for pressure direction selected. Selecting key switch enables a remote TSI key switch, which determines pressure direction.

The DISPLAY AVG item sel ects the display’s averaging period.

The display averaging period is the length of time the room pressure has been averaged before being displayed. The

DISPLAY AVG item value may be set between 0.75 and 40 seconds. The higher the averaging value, the more stable the display.

The UNITS item selects the unit of measure that the controller displays all values (except calibration span). These units display for all menu items setpoints, alarms, flows, etc.

The DUCT AREA item is used to input the duct size. The duct size is needed to compute the flow in/out of the room. This item requires a TSI flow station to be mounted in the duct.

When a duct area is programmed, the display will automatically scroll the actual flow as part of the display sequence. If a zero value is entered, the flow value will not scroll on the display.

If the PresSura monitor displays English units, area must be entered in square feet. If metric units are displayed area must be entered in square meters.

KEY SWITCH,

NEGATIVE,

POSITIVE, NO

ISOLATION

0.75, 1, 2, 3, 5, 10, 20 or 40 seconds

FT/MIN, m/s, "H

Pa, mm H

2

O

2

O

0 to 10 square feet

(0 to 0.9500 square meters)

The PresSura monitor does not compute area. The area must be first calculated and then entered into the unit.

NEGATIVE

20 seconds

"H

2

0

O

CONFIGURE MENU

(continued)

EXHAUST

DUCT AREA

Controller

models only

EXH DCT

AREA

ROOM

VOLUME

ROOM

VOLUME

The EXH DCT AREA item is used to input the exhaust duct size. The duct size is needed to compute the flow out of the room. This item requires a TSI flow station to be mounted in the exhaust duct.

When a duct area is programmed, the display will automatically scroll the actual exhaust flow as part of the display sequence. If a zero value is entered, the exhaust flow value will not scroll on the display.

If the PresSura monitor displays English units, area must be entered in square feet. If metric units are displayed area must be entered in square meters.

The ROOM VOLUME item is used to input the volume of the room. The room volume is required to calculate air changes per hour.

Entering a value for the volume will add the air changes per hour value to the display’s scrolling sequence. If a zero value is entered the air changes per hour will not scroll on the display.

If the PresSura monitor displays English units, area must be entered in cubic feet. If metric units are displayed area must be entered in cubic meters.

NOTE: The DUCT AREA or EXH DCT AREA menu items must first be programmed before the ROOM VOLUME menu item can be programmed.

0 to 10 square feet

(0 to 0.9500 square meters)

The PresSura monitor does not compute area. The area must be first calculated and then entered into the unit.

0 to 20,000 cubic feet

(0 to 550 cubic meters)

The PresSura monitor does not compute volume. The volume must be first calculated and then entered into the unit.

0

0

CONFIGURE MENU

(continued)

SECOND

SENSOR

ENABLE

FLOW

STATION

TYPE

MAXIMUM

FLOW

STATION

VELOCITY

K FACTOR

2 SENSOR

FLO STA

TYPE

The 2 SENSOR item turns the second sensor on or off. This item requires a second TSI pressure sensor to be installed in order to function. Turning 2 SENSOR on adds the second sensor pressure value to the display’s sequence, and enables the 2 LOW ALM and 2 HIGH ALM items.

NOTE

: The second sensor’s communication address must be set to 2 in order to function. See Figures 9 and 11 to change second sensor address.

The FLO STA TYPE item is used to select the flow station input signal. PRESSURE is selected when TSI flow stations with pressure transducers are installed. LINEAR is selected when a linear output flow station is installed (0-10 VDC): Typically a thermal anemometer based flow station.

TOP

VELOCITY

The TOP VELOCITY item is used to input the maximum velocity of a linear flow station output. A TOP VELOCITY must be input for the linear flow station to operate.

NOTE: This item is disabled if a pressure based flow station is installed.

K FACTOR The K FACTOR menu item sets the “K” factor for the flow probe being used. The flow signal is multiplied by the K

FACTOR so that the flow measurement matches the actual flow, usually determined with a pitot tube traverse.

ON or OFF

PRESSURE or

LINEAR

0 to 5,000 FT/MIN

(0 to 25.4 m/s)

0 to 10

OFF

PRESSURE

0

1

CONFIGURE MENU

(continued)

ACCESS

CODES

ACCESS

CODES

END OF

MENU

The ACCESS CODE item selects whether an access code

(pass code) is required to enter the menu. The ACCESS

CODE item prevents unauthorized access to a menu. If the

ACCESS CODE is ON a code is required before the menu can be entered. Conversely, if the ACCESS CODE is OFF no code is required to enter the menu.

The END OF MENU item informs you that the end of a menu has been reached. You can either scroll back up the menu to make changes, or press the SELECT or MENU key to exit out of the menu.

ON or OFF

OFF

SENSOR

SPAN

FLOW ZERO

Monitor

models only

SENSOR

SPAN

FLOW

ZERO

The SENSOR SPAN item is used to match or calibrate the

PresSura velocity sensors to the average room pressure velocity as measured by a portable air velocity meter.

A sensor zero should be established prior to adjusting the

sensor span (see Calibration section following menu item

listing).

The FLOW ZERO item is used to calibrate the PresSura flow station pressure transducer.

A zero or no flow point needs to be established prior to using

the flow measurement (see Calibration section following menu

item listing).

EXHAUST

FLOW ZERO

Controller

models only

EXH FLO

ZERO

The EXH FLO ZERO item is used to calibrate the PresSura flow station pressure transducer.

A zero or no flow point needs to be established prior to using

the exhaust flow measurement (see Calibration section

following menu item listing).

NONE

NONE

NONE

Unit is factory calibrated.

No initial adjustment should be necessary.

Flow station pressure transducer zero must be done prior to making any flow measuremen ts.

Exhaust flow station pressure transducer zero must be done prior to making any flow measuremen ts

CALIBRATION MENU

(continued)

SECOND

SENSOR

SPAN

2SENSOR

SPAN

The 2SENSOR SPAN item is used to match or calibrate the second PresSura velocity sensors to the average room pressure velocity as measured by a portable air velocity meter.

A second sensor span should be established prior to adjusting

the second sensor span (see Calibration section following

menu item listing).

If menu item displays SEC SENS OFF, the second sensor must be turned on (menu item 2 SENSOR) to activate the 2SENSOR

SPAN.

ELEVATION ELEVATION

The ELEVATION item is used to enter the elevation of the hospital above sea level. This item has a range of 0

–10,000 feet in 1,000 foot increments. The pressure value needs to be

END OF

MENU corrected due to changes in air density at different elevations.

The END OF MENU item informs you that the end of a menu has been reached. You can either scroll back up the menu to make changes, or press the SELECT or MENU key to exit out of the menu.

NONE

0 to 10,000 feet above sea level

Unit is factory calibrated.

No initial adjustment should be necessary.

0

CONTROL MENU

Available on Model 8631-HC units only

SPEED SPEED The SPEED item is used to select the control output speed.

When this item is selected, a bar graph is shown on the display.

There are 10 bars, each one representing 10% of speed.

Starting from the right side (+ sign), 10 bars displayed indicates maximum speed. This is the fastest the controller will operate. 1 bar is the slowest the control output will move. The more bars shown, the faster the control output.

SENSITIVITY SENSITIVITY The SENSITIVITY item is used to select the integral dead band.

The integral dead band determines when the controller uses integral control (slow control), and when the controller enters

PID control (fast control). When this item is selected, a bar graph is shown on the display. There are 10 bars each representing

10 ft/min.

Starting from the right side (+ sign), 10 bars displayed indicates no dead band so the controller will always be in PID control mode. The less bars displayed, the larger the integral dead band. For example, with 8 bars displayed and an operating setpoint of 100 ft/min, the integral dead band is between 80 and

120 ft/min. When the measured room pressure velocity is within this range, integral or slow control is used. However, when the room pressure velocity falls below 80 ft/min or rises above 120 ft/min, PID control is enabled until the unit returns within the dead band.

The SENSITIVITY item has a unique feature that when zero bars are displayed, the unit never goes into PID control. The control output is a slow control signal.

WARNING: When SENSITIVITY is set for 10 bars, the system is always in PID control, which will probably cause an unstable system. It is recommended that the

SENSITIVITY be set at 9 bars or less.

1 to 10 bars

0 to 10 bars

5 bars

5 bars

CONTROL MENU

Available on Model 8631-HC units only (continued)

CONTROL

SIGNAL

Kc VALUE

Ti VALUE

CONTROL

SIG

Kc VALUE

Ti VALUE

The CONTROL SIG item determines the control signal’s output direction. As an example; If the control system closes the exhaust damper instead of opening the damper, this option will reverse the control signal to now open the damper.

WARNING: The Kc VALUE and Ti VALUE items provides you with the ability to manually change the PID control loop variables. DO NOT CHANGE THESE

VALUES UNLESS YOU HAVE A THOROUGH

UNDERSTANDING OF PID CONTROL LOOPS.

CONTACT TSI FOR ASSISTANCE PRIOR TO

CHANGING ANY VALUES. Contact TSI for assistance in determining your control problem and for instructions on how to change a value.

Incorrectly changing a value will result in poor or non existent control.

Suggestion: Before changing Kc or Ti change the speed or adjust the sensitivity to try to eliminate the problem.

The Kc VALUE item is used to read and change the gain control coefficient. When this item is entered, a value for Kc is indicated on the display. If the PresSura monitor is not controlling correctly; hunting, oscillating, or controlling slowly, the Kc gain control coefficient may need adjusting.

The Ti VALUE item is used to read and change the integral control coefficient. When this item is entered, a value for Ti is indicated on the display. If the PresSura monitor is not controlling correctly, the unit may have an inappropriate integral control coefficient.

WARNING: Setting Kc or Ti to zero turns the control output signal off causing the unit to act like a monitor.

Direct or Reverse Reverse

Kc = 0 to 1000

Ti = 0 to 1000

The range of values is very large. Poor control will occur if values are more than twice or less than 1/2 the default value

Kc = 100

Ti = 200

CONTROL MENU

Available on Model 8631-HC units only (continued)

END OF

MENU

The END OF MENU item informs you that the end of a menu has been reached. You can either scroll back up the menu to make changes, or press the SELECT or MENU key to exit out of the menu.

LON

**

MAC

ADDRESS

**

MAC ID

LON

MAC

ADDRESS

MAC ID

When the SERVICE PIN option is selected, the Model 8631-

HM/HC sends a broadcast message containing its Neuron ID and program ID. This is required to install the Model 8631-

HM/HC on the LonWorks

®

network, or to reinstall the Model

8631-HM/HC after using the GO UNCONFIGURED command.

Selecting the GO UNCONFIGURED option resets the Model

8631-

HM/HC’s authentication key. This is required in the event a foreign network tool inadvertently acquires a Model 8631-

HM/HC and installs it with network management authentication.

The Model 8631-

HM/HC’s owner will then be unable to reclaim the Model 8631-HM/HC over the network.

The MAC ADDRESS assigns the device an address on the

MS/TP BACnet

®

network. This address must be unique for each device on the BACnet

®

network.

The MAC ID menu item sets the first three digits of the BACnet

® device number. The BACnet

®

device number is the MAC ID combined with the MAC address. For example, if the MAC ID is

863 and the MAC address is 003, the device number is 863003.

SERVICE PIN or

GO UNCONFIGURED

1 to 127

1 to 999

**The LON Menu Item will only appear as a menu option on an 8631 provided with the LonWorks board.

**The MAC ADDRESS and MAC ID Menu Items will only appear as menu options on an 8631 provided with the BACnet

®

board.

1

863

INTERFACE MENU

(continued)

ANALOG

PRESSURE

SIGNAL

OUTPUT

RANGE

OUTPUT

SIGNAL

OUTPUT

RANGE

OUTPUT

SIG

END OF

MENU

The OUTPUT RANGE item selects the resolution range of the linear analog pressure signal output. There are 2 choices:

LOW -

0.01000 to +0.01000” H

2

0, or

-500 to 500 FPM, or

-2.5 to 2.5 m/s, or

-25 to 25 Pa

HIGH -

0.10000 to +0.10000” H

2

0, or

-1000 to 1000 FPM, or

-5.0 to 5.0 m/s, or

-50 to 50 Pa

0 volt / 4 mA represents maximum negative pressure differential.

5 volts / 12 mA represents a 0 room pressure differential.

10 volts / 20 mA represents maximum positive pressure differential.

If the actual pressure exceeds the range, the output remains at maximum or minimum depending on direction of flow.

The AOC updates the analog output every 0.1 second.

NOTE:

The units displayed for OUTPUT RANGE values are determined by the UNITS menu item in the

CONFIGURE MENU.

The OUTPUT SIG item selects the type of analog pressure signal output. The analog output signal can either be 0-10 VDC or

4 to 20 mA.

The END OF MENU item informs you that the end of a menu has been reached. You can either scroll back up the menu to make changes, or press the SELECT or MENU key to exit out of the menu.

LOW or HIGH

0 to 10 VDC or 4 to

20 mA

HIGH

0 to 10 VDC

Calibration

The calibration section explains how to calibrate the PresSura pressure sensor, including setting the proper elevation, and how to zero a TSI flow station pressure transducer.

NOTE: The PresSura

™ pressure sensor is factory calibrated and normally does not need to be adjusted. However, inaccurate readings may be detected if the pressure sensor is not installed correctly, or problems with the sensor exists. First check that the sensor is installed correctly (usually only a problem on initial set up). Second, go into

DIAGNOSTICS menu, SENSOR STAT item. If NORMAL is displayed, calibration can be adjusted. If an error code is displayed, eliminate error code and then verify pressure sensor needs adjustment.

Adjusting the PresSura monitor calibration may be required to eliminate errors due to convection currents, HVAC configuration, or equipment used to make the measurement. TSI recommends always taking the comparison measurement in the exact same location (i.e., under the door, middle of door, edge of door, etc.). A thermal air velocity meter is needed to make the comparison measurement. Normally the velocity is checked at the crack under the doorway, or the door is opened 1” to allow alignment of the air velocity probe making the measurement. If the crack under the door is not large enough, use the 1” open door technique.

Calibrating pressure sensor - primary sensor or second sensor

Enter calibration menu (see Software Programming if not familiar with key stroke procedure).

Access code is turned on so enter proper access code. All menu items described below are found in CALIBRATION menu.

Elevation

The ELEVATION item eliminates pressure sensor error due to elevation of hospital. (See

ELEVATION

item in Menu and Menu items section for further information).

Enter the ELEVATION menu item. Scroll through the elevation list and select the one closest t o the hospital’s elevation

Press the SELECT key to save the data and exit back to the calibration menu.

32 Part Two

Figure 7: Pressure sensor door slid open

Sensor span

NOTE: A smoke test and a comparison measurement by an air velocity meter are required to calibrate the pressure sensor. The air velocity meter only gives a velocity reading, so a smoke test must be performed to determine pressure direction.

WARNING: The span can only be adjusted in the same direction. Adjusting span cannot cross zero pressure. Example: If unit displays +0.0001 and actual pressure is -0.0001 do not make any adjustments. Manually change the air balance, close or open dampers, or open door slightly to get both unit and actual pressure to read in same direction (both read positive or negative). This problem can only occur at very low pressures so slightly changing the balance should eliminate the problem.

Perform a smoke test to determine pressure direction.

Select SENSOR SPAN item (2SENSOR SPAN item if second sensor).

Position thermal air velocity meter in door opening to obtain velocity reading. Press / keys until pressure direction (+/-) and sensor span match thermal air velocity meter, and smoke test.

Press SELECT key to save sensor span.

Exit menu, calibration is complete.

Flow station pressure transducer zero

Disconnect tubing between pressure transducer and flow station.

Enter calibration menu. Access code is required

Select EXH FLO ZERO to take exhaust flow zero

or

Select SUP FLO ZERO to take supply flow zero (premium units only)

Press SELECT key. Flow zero procedure, which takes 10 seconds, is automatic.

Press SELECT key to save data.

Connect tubing between pressure transducer and flow station.

Technical Section

33

Maintenance and Repair Parts

The Model 8631 PresSura Room Pressure Monitor/Controller requires minimal maintenance.

Periodic inspection of system components as well as an occasional pressure sensor cleaning are all that are needed to ensure that the Model 8631 is operating properly.

System Component Inspection

It is recommended that the pressure sensor be periodically inspected for accumulation of contaminants. The frequency of these inspections is dependent upon the quality of the air being drawn across the sensor. Quite simply, if the air is dirty, the sensors require more frequent inspection and cleaning.

Visually inspect the pressure sensor by sliding open the sensor housing door (Figure 8). The air flow orifice should be free of obstructions. The small ceramic coated sensors protruding from the orifice wall should be white and free of accumulated debris.

Figure 8: Pressure sensor door slid open

Periodically inspect the other system components for proper performance and physical signs of excessive wear.

Pressure Sensor Cleaning

Accumulations of dust or dirt can be removed with a dry soft-bristled brush (such as an artist's brush). If necessary, water, alcohol, acetone, or trichlorethane may be used as a solvent to remove other contaminants.

Use extreme care when cleaning the velocity sensors. The ceramic sensor may break if excessive pressure is applied, if sensor is scraped to remove contaminants, or if the cleaning apparatus abruptly impacts the sensor.

WARNING: If you are using a liquid to clean the sensor, turn off power to the

Model 8631.

Do not use compressed air to clean the velocity sensors.

Do not attempt to scrape contaminants from the velocity sensors. The velocity sensors are quite durable; however, scraping may cause mechanical damage and possibly break the sensor. Mechanical damage due to scraping voids the pressure sensor warranty.

34 Part Two

Replacement Parts

All components of the room pressure controller are field replaceable. Contact TSI HVAC Control

Products at (800) 874-2811 (U.S. and Canada) or (001 651) 490-2811 (other countries) or your nearest TSI Manufacturer's Representative for replacement part pricing and delivery.

Part Number Description

800646

800647

863108

863109

800243

800248

800414

800420

800199

800360

Model 8631-HM Pressure Monitor

Model 8631-HC Pressure Controller

Model 8631-HM-BAC Pressure Monitor

Model 8631-HC-BAC Pressure Controller

Pressure Sensor

Sensor Cable

Transformer Cable

Transformer

Controller Output Cable

Electric Actuator

Technical Section

35

Troubleshooting Section

The PresSura Room Pressure Monitor/Controller is designed to be trouble free. However, installation problems or interaction with other HVAC components may cause system problems.

The PresSura system is easy to troubleshoot if an organized approach to evaluate the system is taken. Troubleshooting is broken down into hardware and software problems. Hardware problems deal with the physical installation of the device. Hardware problems include wiring problems, incorrectly installed equipment, and add-ons or non TSI equipment. Software problems include control problems, configuration problems, or interaction problems with the HVAC system.

The hardware test described in this section determines that all TSI mechanical components are functioning correctly. The hardware test requires the diagnostics menu items to be accessed. If

you are unfamiliar with the PresSura monitor menus, see Software Programming for keystroke

procedure. Troubleshooting the majority of problems is usually quick if the hardware test is followed.

Software and hardware problems are covered in the troubleshooting chart. Pick the problem that most closely resembles your problem and review the possible symptoms and corrective action.

Software or system performance problems can and are affected by the supply air system, exhaust air system, or physical configuration of the room. Separating TSI system problems from the hospital HVAC system can sometimes be difficult. TSI recommends confirming all hardware is operating correctly before troubleshooting software problems.

Hardware Test

Three tests need to be performed in order to determine all hardware is functioning correctly. The tests are broken down into:

Confirming wiring is correct .

Confirming physical installation is correct .

Verifying mechanical components .

Confirming wiring is correct.

The most common problem with installed hardware equipment is incorrect wiring. This problem usually exists on initial installation, or when modifications to the system take place. The wiring should be very closely checked to verify it exactly matches the wiring diagram. The TSI cables are all color coded to ensure proper wiring. A wiring diagram is

located in Appendix C of this manual. Wiring associated with non TSI components should

be closely checked for correct installation. If non TSI components are installed, consider disconnecting them for testing purposes.

Confirming physical installation is correct

All of the hardware components need to be installed properly. Review the installation instructions and verify components are installed properly at the correct location. This is easily done when the wiring is checked.

Verifying mechanical components

Verifying all TSI components are operating correctly requires following a simple procedure. The fastest procedure to confirm all equipment is operating is to first test the

DIM, and then go into the diagnostic menu to test each component.

NOTE: These tests require power to the units, so if unit has no power, refer to hardware troubleshooting chart to eliminate power problem.

36 Part Two

TEST - DIM

Press TEST key to verify Digital Interface Module (DIM) electronics are functioning correctly. At the end of the self test, the display shows SELF TEST - PASSED if all DIM electronics are good. If unit displays DATA ERROR at the end of the test, the electronics may be corrupted. Check all software items to determine cause of DATA ERROR.

If SELF TEST - PASSED is displayed proceed to test individual components. Enter

Diagnostics menu and check the following:

Control output

Sensor input .

. (Available on Controller models only)

Sensor status .

Analog output .

Key input .

These diagnostic menu items are explained in detail in the next section ( Diagnostics menu ) of the manual, so their function is not reviewed here. If the PresSura system

passes each of the tests, the mechanical piece parts are all functioning correctly.

TEST - Control output (Available on Controller models only)

Enter CONTROL OUT menu item in diagnostics menu. A number between 0 and 255 is displayed. Press the / keys until either 0 or 255 shows on the display. Note the position of the control damper. If display reads 0 press the  key until 255 is shown on display. If display read 255 press  key until 0 is shown on display. Note the position of the damper. The damper should have rotated either 45 or 90 degrees depending on

actuator installed. If not see hardware section:

Control system is not controlling

.

TEST - Sensor input

Enter SENSOR INPUT menu item in diagnostics menu. A voltage between 0 and 10 volts

DC is displayed. It is not important what the exact voltage is to pass this test. Tape over the pressure sensor (slide pressure sensor door open) and voltage should read approximately 5 volts (zero pressure). Remove tape and blow on sensor. Displayed value should change. If voltage changes, the unit passes.

If voltage doesn’t change, proceed to Sensor status test.

TEST - Sensor status

Enter SENSOR STAT menu item in diagnostics menu. If NORMAL is displayed, the unit passes test. If an error message is displayed, go to diagnostics menu section of the manual, SENSOR STAT menu item for explanation of error message.

TEST - Analog output

NOTE: This test is only performed if analog output feature is being used.

Enter ANALOG OUT menu item in diagnostics menu. A value between 0 and 255 is displayed. Hook up a DC voltmeter to pins 9 and 10. Press the / keys to change output from 0 to 255. Voltage should change from 10 volts to zero volts (20 mA to 0 mA if current output).

TEST - Key input

NOTE: This test is only performed if system has a TSI key switch installed.

Enter ROOM MODE item in control menu. Verify KEY SWITCH option is selected. Exit menu item and enter KEY INPUT item in diagnostics menu. Note the position of the key switch. Verify that key switch position and key input match. Rotate key switch to verify key input works for all positions.

Technical Section

37

If unit passed all tests, the mechanical components are physically working. If problems still exist, go to troubleshooting chart for additional information, on both hardware and software symptoms.

Diagnostics Menu

The items in the diagnostic menu (listed below) aid in identifying problems the staff may encounter. The items in this menu temporarily change the function by pressing the / keys. No permanent change occurs with these menu items. Items are exited by pressing the MENU key.

When an item is exited the PresSura monitor returns to its normal state.

Control Output

Menu Item - CONTROL OUT (Available on Controller models only)

The CONTROL OUT item is used to change the control output signal to the actuator/damper (or motor speed drive). When this item is entered, a number is shown on the display indicating the last control output value. The range of values displayed is 0 to 255. Pressing the / keys change the count on the display. Pressing the  key should increase the displayed value, while pressing the  key decreases the displayed value. The control device should change as the number changes. Depending on the jumper location on the actuator, 0 or 255 is full open on damper. Conversely 255 or 0 will be full closed. A count of 150 should open the damper approximately 1/2 open. On units controlling variable frequency drives, fan speed should increase or decrease as numbers change.

WARNING: The CONTROL OUT function overrides the pressure control signal.

Adequate room pressure will NOT be maintained while in this item.

Sensor Input

Menu Item - SENSOR INPUT / 2SENSOR IN

The SENSOR INPUT (2SENSOR IN) item is used to verify that the DIM or controller electronics is receiving a signal from the sensor. When this item is entered, a voltage will be indicated on the display. The exact voltage displayed is relatively unimportant. It is more important that the voltage is changing which indicates the sensor is working correctly.

0 volts represents a negative pressure of -0.2 inches H

2

O.

5 volts represents 0 pressure

10 volts represents a positive pressure of +0.2 inches H

2

O.

Sensor Communications

Menu Item - SENSOR STAT / 2SENSOR STAT

The SENSOR STAT (2SENSOR STAT) item verifies that the RS-485 communications between the pressure sensor and DIM is working correctly. Sensor error messages do not display on DIM except when SENSOR STAT item is selected. The item displays

NORMAL if communications are established correctly. If problems exist, one of four error messages will display:

COMM ERROR - DIM cannot communicate with sensor. Check all wiring and the pressure sensor address. Address must be 1 or 2 (Figure 9).

SENS ERROR - Problem with sensor bridge. Physical damage to pressure sensor or sensor circuitry. Unit is not field repairable. Send to TSI for repair.

CAL ERROR - Calibration data lost. Sensor must be returned to TSI to be calibrated.

38 Part Two

DATA ERROR - Problem with EEPROM, field calibration, or analog output calibration lost. Check all data programmed and confirm unit is function correctly.

Analog Output

Menu Item - ANALOG OUT

The ANALOG OUT item is used to vary the analog output from the PresSura unit. When this item is entered, a number is shown on the display indicating the last analog output value. The value displayed ranges from 0 to 255. The value 255 corresponds to the lowest voltage (current) output and 0 corresponds to the highest voltage (current) output.

Pressing the  key decreases the analog output and increase the value displayed.

Pressing the  key increases the analog output and decrease the value displayed.

The ANALOG OUT function can be used in conjunction with a volt meter to verify the analog output is correct.

Key Switch Input

Menu Item - KEY INPUT

The KEY INPUT item reads the position of the TSI key switch. When this item is entered, the display indicates either POSITIVE, NEGATIVE, or NO ISOLATION. If the display indicates POSITIVE, the TSI key switch has the PresSura monitor in positive pressure mode. If the display indicates NEGATIVE, the TSI key switch has the PresSura monitor in the negative pressure mode. If the display indicates NO ISOLATION, the TSI key switch has the PresSura monitor in no isolation mode (damper goes to preset position).

In normal operation, the key switch is not enabled unless ROOM MODE item has KEY

SWITCH selected.

Flow Input

Menu Item - FLOW IN (Available on Monitor models only)

The FLOW IN item is used to read the input from the flow station. When this item is entered, a voltage is indicated on the display. The exact voltage displayed is relatively unimportant. It is more important that the voltage is changing which indicates the flow station is working correctly.

0 VDC displayed equals zero flow.

10 VDC displayed equals maximum flow.

Menu Item

– EXH FLOW IN (Available on Controller models only)

The EXH FLOW IN item is used to read the input from the exhaust flow station. When this item is entered, a voltage is indicated on the display. The exact voltage displayed is relatively unimportant. It is more important that the voltage is changing which indicates the flow station is working correctly.

0 VDC displayed equals zero flow.

10 VDC displayed equals maximum flow.

Alarm Relay

Menu Item - ALARM RELAY

The ALARM RELAY item is used to change the state of the alarm relay. When this item is entered, the display indicates either OPEN or CLOSED. The / keys are used to toggle the state of the relay. The  key is used to OPEN the alarm contact. The  key is used to CLOSE the alarm contact. When the contact is closed, the ALARM RELAY should be in an alarm condition.

Technical Section

39

Troubleshooting Chart

Symptom Possible Cause Corrective Action

Display is blank. Fuse is blown. Measure voltage at pins 1 and 2 on DIM.

The voltage should nominally be;

24 to 40 VDC when using TSI electric actuators

24 to 30 VAC when using TSI pneumatic actuators

24 to 30 VAC when using motor speed drives.

If correct voltage is measured, internal DIM fuse is probably blown. Unplug 14-pin connector from DIM for 2 minutes. The internal fuse automatically resets. Plug unit

No power to DIM. back in and check display. If display is still blank, check all wiring, etc. If no problems are found, replace DIM.

If approximately 5 volts is measured, the fuse in the electric actuator or E/P is blown. Disconnect power to the electric actuator or E/P for two minutes to reset fuse.

Disconnecting power requires either shutting off circuit breaker or disconnecting the wires on pins 1 and 2 on the electric actuator or E/P.

If zero volts are measured, see

Verify circuit breaker is on.

No power to DIM

Verify transformer primary measures 110 VAC.

.

Verify transformer secondary measures 24 - 30 VAC.

Control system is not controlling.

DIM is defective.

Verify electric actuator or E/P interface is receiving 24 -

30 volts between pins 1 and 2.

Verify 24 to 40 VDC is found between pins 3 and 4 of the electric actuator.

Verify 24 to 30 VAC between pins 3 and 4 of the E/P interface.

Verify voltage on pins 1 and 2 of DIM is 24 - 30 VAC for pneumatic systems and VFDs, or 24 - 40 VDC on electric actuators.

If proper voltage is found between pins 1 and 2 of the

DIM, all wiring has been checked, fuses have been reset, and screen is still blank, the DIM is probably defective. Replace DIM.

Verify correct wiring (see wiring diagram, Appendix C ).

DIM must be wired exactly as shown.

Slide open cover on DIM and see what mode DIM is in.

If in no isolation is displayed, damper goes to preset

position (see SETPOINT menu, DAMPER SET item)

and no control is possible.

Incorrect wiring.

DIM is in no isolation mode.

Technical Section 40

Symptom

Control system is not controlling

(cont.).

Possible Cause Corrective Action

No control output signal.

Go into DIAGNOSTICS menu, CONTROL OUT item. A number between 0 and 255 is displayed. Pressing the  key increases the number. Pressing the  key decreases the number. Measure the DC voltage between pins 17 and 18 on the controller. Change the

CONTROL OUT value about 100 numbers. The voltage output should change approximately 4 volts. Change the

CONTROL OUT value to 150. The voltage should read approximately 5 VDC.

If no change occurs, disconnect control wires on pins 17 and 18 and repeat test. If DIM still fails to change voltage output, DIM is probably defective.

Go into DIAGNOSTICS menu, CONTROL OUT item. A Bad actuator or

E/P (damper doesn't move). number between 0 and 255 is displayed. Pressing the

 key increases the number. Pressing the  key decreases the number. Change the CONTROL OUT value to read 0 or 255. Note damper position. Press an arrow key to change 0 to 255 or 255 to 0. Note position of damper. Damper should have rotated 45 or 90 degrees depending on actuator system installed.

If damper rotated 45 or 90 degrees, actuator is installed and operating correctly. If damper did not rotate, check that:

Jumper is installed on actuator or E/P.

Damper is not physically stuck (screws, etc.).

Wiring is correct between actuators and controller.

Check that voltage varies between 0 and 10 volts on

pins 5 and 6 on electric actuator or E/P (see

No

Defective variable frequency drive

(VFD).

Damper rotating opposite direction.

Damper is full open or full closed, won’t move.

control output signal

If damper is full open when it should be closed or full closed when it should be open, go into CONTROL menu

CONTROL SIG menu item. Change direct to reverse or

reverse to direct to change control output direction.

Actuator jumper is missing or loose. Verify jumper is installed correctly.

).

Electric actuator is not over torqued. The electric actuator has current limiting protection. If damper is physically stuck or actuator is over current, the actuator shuts down. To restart either kill power to actuator or move damper in opposite direction it was trying to rotate (CONTROL OUT menu item).

Perform test described in Control system is not

controlling. If CONTROL OUT is functioning, verify wiring to VFD by confirming CONTROL OUT voltage changes at VFD. If voltage changes, a problem with

VFD exists. See VFD manual for further troubleshooting.

Technical Section

41

Symptom

Control system is not controlling

(cont.).

Sensor does not calibrate.

Possible Cause Corrective Action

Control wires are loose. Check wires and verify control

output is working (see

no control output signal

). If control

output test passes, verify damper is rotating correct

direction (see

damper rotating opposite direction

). If

damper is rotating correctly and setpoint cannot be reached, DIM fully rotates damper to get as close to setpoint as possible. Air balance needs to be adjusted.

Incorrect pressure sensor address.

Primary pressure sensor must have address of 1.

Second sensor must have address of 2. Check pressure sensor DIP switches 1 & 2 and verify address is correct

(7-12 must be OFF).

Pressure sensor red LED is blinking (Figure

9).

DIM always displays 0.200 inches H

2

O.

Sensor communications not working.

Problem with sensor (slow uniform blink).

Communication

(fast burst of non-uniform blinking).

Red LED is constantly on.

Figure 9: Pressure sensor DIP switch

Incorrect pressure sensor output.

Check SENSOR STAT item in diagnostics menu. If

NORMAL is displayed, sensor is okay. If COMM

ERROR is displayed, check wiring, pressure sensor address, and that DIP switch 1 & 2 are ON (Figures 9 and 11).

Check SENSOR STAT and confirm NORMAL is displayed. If ERROR is displayed, correct error.

Unit is communicating with DIM. This is normal.

This is normal when no problems exist or when no communication is occurring.

Pressure sensor must be set for 0 to 10 volt output, not

4 to 20 mA (do not confuse this output with DIM analog output). Check pressure sensor DIP switch 3 and make sure it is OFF (see Figure 9).

42 Part Two

Symptom

Positive/negative/ neutral key switch doesn’t work.

DIM does not respond to

LonWorks

® communications.

DIM does not respond to

BACnet

® communications.

DIM displays opposite pressure signal.

Possible Cause Corrective Action

Incorrect wiring. Verify wiring is correct between key switch and DIM.

Room mode is incorrect.

Go into CONFIGURE menu, ROOM MODE item. Verify

ROOM MODE is in key switch position.

Defective switch / defective DIM.

Verify ROOM MODE is in key switch position. Go into

DIAGNOSTICS menu, KEY INPUT item. Display should read negative in negative position, positive in positive position, and no isolation in neutral position. If display changes correctly, switch and switch input is good. If display does not change:

Disconnect key switch wires from DIM pins 11 and 12.

Measure the resistance of the switch:

Negative position should be open (infinite).

Neutral position should read approximately 273 K

Ohms.

Positive position should be closed (short).

If room mode is correct and resistance check is good,

DIM key input is probably defective. Replace DIM.

Device has not identified itself to the network. .

Device has been acquired by foreign network tool.

Incompatible software.

Device is sharing

MAC address with other device on the network.

RS485 wiring polarity backwards.

Go into INTERFACE menu, LON item. Select SERVICE

PIN.

Go into INTERFACE menu, LON item. Select GO

UNCONFIGURED.

Data sent to DIM may be in form that the PresSura monitor cannot recognize.

Go into INTERFACE menu, MAC ADDRESS item.

Change to a unique address on the network.

Swap the polarity on terminals 27,28 on the back of the

DIM.

Sensor direction is incorrect.

Pressure sensor must have DIP switch correctly set for proper sign display. Verify DIP switch 4 is ON when sensor is mounted in isolation room (controlled space), and OFF when sensor is mounted in reference space

(see Figure 9).

Technical Section

43

Symptom

Alarm relay doesn’t work.

"DATA ERROR" flashing on display.

Actuator hunting.

Display indicates steady pressure.

Displayed pressure wildly fluctuating.

Possible Cause Corrective Action

Alarms are turned off.

Press TEST key. The individual alarm setpoints will

Incorrect wiring.

Relay may be defective. display. If all alarm setpoints are zero, alarm relay is not active, so relay will not be required to change state.

Check the wiring from PresSura monitor relay's output to the device that is connected to the relays.

Disconnect the wiring from relay contact pins 13 and 14 for low alarm relay and pins 25 and 26 for high alarm relay. Go into DIAGNOSTICS menu, LOW ALM REL or

HIGH ALM REL. Connect an ohmmeter to relay terminals to verify contact open and closes. Press

DIM was hit by electrical disturbance. the / key to manually trip the relay. If relay responds

(contact opens and closes), the device connected is incompatible or defective.

If relay doesn’t respond, relay is defective (may be caused by incompatible device).

Replace DIM.

All data may be lost or changed. Review all configuration parameters. DATA ERROR is removed by pressing the

RESET key.

Control system is unstable.

Exhaust system unstable.

Supply or exhaust air is affecting the sensor.

Go into CONTROL menu, SPEED item. Turn speed down until hunting is eliminated. If speed is too slow review CONTROL menu items and adjust accordingly to eliminate hunting.

Turn DIM to emergency. If pressure stabilizes, this is not the problem. Verify reference pressure is not fluctuating.

Check location of supply air diffusers and exhaust grilles. They should be as far from pressure sensor as is realistic, 6 feet preferred, 2½ feet minimum. Supply diffuser terminal throw velocity must be less than 10 ft/min at the sensor. Relocate supply or exhaust as needed.

44 Part Two

Appendix A

Specifications

Room Pressure Module

Display

Range .................................................................. -0.20000 to +0.20000 inches H

2

O

Resolution ............................................................ 5% of reading

Display Update .................................................... 0.5 sec

Inputs

Switch in .............................................................. SPST (N.O.) Switch. Closing switch initiates condition.

Flow in ................................................................ 0 to 10 VDC

Outputs

Low Alarm Range ................................................ -0.19500 to +0.19500 inches H

2

O

High Alarm Range ............................................... -0.19500 to +0.19500 inches H

2

O

Alarm Contacts .................................................... SPST (N.O.) Max current 5A, max voltage 150 VDC, 250 VAC. Maximum switch load 10 mA, 5 VDC. Contacts close in alarm condition.

Analog Output

Type ......................................................... 0 to 10 VDC or 4 to 20 mA

Range ....................................................... High -0.100 to +0.100 inches H

2

O

Low -0.0100 to +0.0100 inches H

2

O

Resolution ................................................ 1.0% of range for 0 to 10 VDC

1.2% of range for 4 to 20 mA

RS-485 ................................................................. Yes

Operating Temperature ....................................... 32 to 120°F

Input Power ......................................................... 24 VAC, 5 watts max

Dimensions .......................................................... 4.9 in. x 4.9 in. x 1.35 in.

Weight .................................................................. 0.7 lb.

Pressure Sensor

Temperature Compensation Range .................... 55 to 95°F

Power Dissipation ................................................ 0.16 watts at 0 inches H

2

O,

0.20 watts at 0.00088 inches H

2

O

Dimensions (D x H) ............................................. 5.58 in. x 3.34 in. x 1.94 in.

Weight .................................................................. 0.2 lb.

Damper/Actuator

Types of Actuators ............................................... Electric or pneumatic

Input Power ......................................................... Electric: 24 VAC, 7.5 watts max.

Time for 90° Rotation Electric: 1.5 seconds

45

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46 Appendix A

Appendix B

Network Communications

Network communications are available on the Model 8631-HM/HC. The Model 8631-HM/HC can communicate with a building management system through LonWorks

®

or BACnet

®

MSTP protocols. Please refer to the sections below for more detailed information.

Model 8631-HM LonWorks

®

Node Object

nv3 nv4 nv5 nviRequest

SNVT_obj_request nviSetTime

SNVT_time_stamp nviMute

SNVT_switch

Network variables

Configuration properties

nci 0 nci 1 nci 2 nciOutInht nciDeviceIndex nciFirmwareVer

LonWorks

®

Room Monitor Status Definitions

Bit nvoControlStatus

Description

0

1

2

Negative Mode

Positive Mode

No Isolation Mode

Setting nviRequest.object_request to

RQ_CLEAR_ALM clears the current alarm from the controller and the BAS nv9 nv8 nv7 nv6

Bit

0

1

2

3

4 nvoStatus

SNVT_obj_status nvoAlarm

SNVT_alarm nvoControlStatus

SNVT_char_ascii nvoStatusIndex

SNVT_char_ascii

nvoStatusIndex

Description

Normal

Low Alarm

High Alarm

Minimum Flow Alarm

Data Error

47

8631-HM LonWorks

®

Object

8631-HM Object

nv14 nviRoomMode

SNVT_char_ascii nv15 nv16 nv17 nv18 nv19 nv20 nv21 nv22 nv23 nvoRoomPress

SNVT_press_f nvoAirlockPress

SNVT_press_f nvoTotExhFlo

SNVT_flow nvoLoAlPressAlm

SNVT_press_f nvoHiAlPressAlm

SNVT_press_f nvoPsLoRmPressAl

SNVT_press_f nvoPsHiRmPressAl

SNVT_press_f nvoNgLoRmPressAl

SNVT_press_f nvoNgHiRmPressAl

SNVT_press_f

Configuration properties nci 10 nciMaxSendTime nci 11 nciMinSendTime nci 12 nciSndDeltaPress nci 13 nciSndDeltaFlo

LonWorks

®

Room Monitor Room Mode Definition nviRoomMode

Bit

0

1

2

Description

Negative Mode

Positive Mode

No Isolation Mode

48 Appendix B

Model 8631-HC LonWorks

®

Node Object

nv3 nv4 nv5 nviSetTime

SNVT_time_stamp nviMute

SNVT_switch

Network variables

nviRequest

SNVT_obj_request

Configuration properties

nci 0 nci 1 nci 2 nciOutInht nciDeviceIndex nciFirmwareVer

LonWorks

®

Room Controller Status Definitions

Bit nvoControlStatus

Description Bit

nv9 nv8 nv7 nv6

0

1

2

Negative Mode

Positive Mode

No Isolation Mode

0

1

2 nvoStatus

SNVT_obj_status nvoAlarm

SNVT_alarm nvoControlStatus

SNVT_char_ascii nvoStatusIndex

SNVT_char_ascii

nvoStatusIndex

Description

Normal

Low Alarm

High Alarm

Setting nviRequest.object_request to

RQ_CLEAR_ALM clears the current alarm from the controller and the BAS

3

4

5

6

7

8

Minimum Exhaust Alarm

Second Sensor Low Alarm

Second Sensor High Alarm

Data Error

Emergency

LON Override

Network Communications

49

8631-HC LonWorks

®

Object

8631-HC Object

nv15 nv16 nviExhOverride

SNVT_hvac_overid nviRoomMode

SNVT_char_ascii nv24 nv25 nv26 nv27 nv28 nv29 nv17 nv18 nv19 nv20 nv21 nv22 nv23 nv30 nvoRoomPress

SNVT_press_f nvoAirlockPress

SNVT_press_f nvoTotExhFlo

SNVT_flow nvoExhDamperPos

SNVT_lev_percent nvoMinExhFloSet

SNVT_flow nvoLoAlPressAlm

SNVT_press_f nvoHiAlPressAlm

SNVT_press_f nvoPsRmPressSet

SNVT_press_f nvoPsLoRmPressAl

SNVT_press_f nvoPsHiRmPressAl

SNVT_press_f nvoNgRmPressSet

SNVT_press_f nvoNgLoRmPressAl

SNVT_press_f nvoNgHiRmPressAl

SNVT_press_f nvoNeuExhDampPos

SNVT_lev_percent

Configuration properties nci 10 nciMaxSendTime nci 11 nciMinSendTime nci 12 nciSndDeltaPress nci 13 nciSndDeltaFlo nci 14 nciSndDeltaPos

LonWorks

®

Room Controller Room Mode Definition nviRoomMode

Bit

0

1

2

Description

Negative Mode

Positive Mode

No Isolation Mode

50 Appendix B

8631 BACnet

®

MS/TP Protocol Implementation Conformance

Statement

Date: March 19, 2007

Vendor Name: TSI Inc.

Product Name: PresSura Room Pressure Monitor/Controller

Product Model Number: 8631-HM(HC)-BAC

Applications Software Version: 1.0

Firmware Revision: 1.0

BACnet Protocol Revision: 2

Product Description:

TSI's PresSura Room Pressure Monitors accurately measure the actual room pressure differential, verifying the proper operation of your HVAC system to help you maintain patient safety. The PresSura Room Pressure Controllers, however, go a step beyond simple monitoring; they can adjust the airflow rates to correct problems as they occur, reducing incidents when the room pressure differential goes out of control. This model monitor/controller is capable of acting as a stand-alone device or as part of a building automation system via BACnet MS/TP protocol.

BACnet Standardized Device Profile (Annex L):

BACnet Operator Workstation (B-OWS)

BACnet Building Controller (B-BC)

BACnet Advanced Application Controller (B-AAC)

BACnet Application Specific Controller (B-ASC)

BACnet Smart Sensor (B-SS)

BACnet Smart Actuator (B-SA)

List all BACnet Interoperability Building Blocks Supported (Annex K):

DS-RP-B DM-DDB-B

DS-WP-B

DS-RPM-B

DM-DOB-B

DM-DCC-B

Segmentation Capability:

Segmented requests not supported

Segmented responses not supported

Network Communications

51

Standard Object Types Supported:

Analog Input

Analog Value

Dynamically

Createable

No

No

Dynamically

Deletable

No

No

Optional Properties

Supported

Writable Properties

(Data Type)

Active_Text, Inactive_Text

Present_Value

(Real)

Binary Input

No No

Binary Value

No No Active_Text, Inactive_Text Present_Value

(Enumerated)

State_Text

Multi-state Input

No

Multi-state

Value

No

Device Object

No

No

No State_Text Present_Value

(Unsigned Int)

No Object Name

(Char String)

Max Master (Unsigned

Int)

Data Link Layer Options:

 BACnet IP, (Annex J)

 BACnet IP, (Annex J), Foreign Device

 ISO 8802-3, Ethernet (Clause 7)

 ANSI/ATA 878.1, 2.5 Mb. ARCNET (Clause 8)

 ANSI/ATA 878.1, RS-485 ARCNET (Clause 8), baud rate(s)

 MS/TP master (Clause 9), baud rate(s): 76.8k 38.4k, 19.2k, 9600 bps

 MS/TP slave (Clause 9), baud rate(s):

 Point-To-Point, EIA 232 (Clause 10), baud rate(s):

 Point-To-Point, modem, (Clause 10), baud rate(s):

 LonTalk, (Clause 11), medium:

 Other:

Device Address Binding:

Is static device binding supported? (This is currently necessary for two-way communication with

MS/TP slaves and certain other devices.) Yes  No

Networking Options:

 Router, Clause 6 - List all routing configurations, e.g., ARCNET-Ethernet, Ethernet-MS/TP, etc.

 Annex H, BACnet Tunneling Router over IP

 BACnet/IP Broadcast Management Device (BBMD)

Character Sets Supported:

Indicating support for multiple character sets does not imply that they can all be supported simultaneously.

 ANSI X3.4

 ISO 10646 (UCS-2)

If this product is a communication gateway, describe the types of non-BACnet equipment/networks(s) that the gateway supports:

Not Applicable

 IBM

®

/Microsoft

®

DBCS

 ISO 10646 (UCS-4)

 ISO 8859-1

 JIS C 6226

52 Appendix B

Model 8631-HM BACnet

®

MS/TP Object Set

Feature

Room Pressure

Sec Sens

Pressure

Flow Rate

Air Changes Per

Hour

MAC Address**

Neg Low Alarm

Object Type

Analog Input

Analog Input

Analog Input

Analog Input

Analog Value

Analog Value

Device Instance

1

2

3

4

1

2

*Units

ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa cfm, l/s

Neg High Alarm

Pos Low Alarm

Pos High Alarm

Sec Low Alarm

Sec High Alarm

Min Supply Alarm

MAC ID**

Status Index

Analog Value

Analog Value

Analog Value

Analog Value

Analog Value

Analog Value

Analog Value

Multi-State Input

3

4

5

6

7

8

9 ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa cfm, l/s

1 to 127

0 to -

0.19500 “H

2

O

0 to -

0.19500 “H

2

O

0 to 0.19500 “H

2

O

0 to 0.19500 “H

2

O

-

0.19500 to 0.19500 “H

2

O

-

0.19500 to 0.19500 “H

2

O

Control Mode

Units Value

Multi-State Value

Multi-State Value

1

2

3

0 to 30,000 cfm

1 to 999

1 Normal

2 Low Alarm

3 High Alarm

4 Min Flow Alarm

5 Sec Sens Low Alarm

6 Sec Sens High Alarm

7 Data Error

1 Negative

2 Positive

3 No Isolation

1 ft/min

2 m/s

3 “H

2

O

4 Pa

* The units are based on the value of the Units Value object. When the Units Value is set to 1 or 3 the units are in English form. When the Units Value is set to 2 or 4 the units are metric. English is the default value.

** The MAC ID defaults to 863. The device index is the MAC ID multiplied by 1000, summed with the MAC Address of the device. The default device index is therefore 863001.

Network Communications

53

Model 8631-HC BACnet

®

MS/TP Object Set

Description

Room Pressure

Sec Sens

Pressure

Current Pressure

Setpoint

Flow Rate

Air Changes Per

Hour

Damper Position

MAC Address**

Neg Pressure

Setpoint

Pos Pressure

Setpoint

Neg Low Alarm

Pos Low Alarm

Sec Low Alarm

Sec High Alarm

Object Type

Analog Input

Analog Input

Analog Input

Analog Input

Analog Input

Analog Input

Analog Value

Analog Value

Analog Value

Analog Value

Neg High Alarm Analog Value

Analog Value

Pos High Alarm Analog Value

Analog Value

Analog Value

Device

Instance

1

2

3

4

5

6

1

2

3

4

5

6

7

8

9

*Units

ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa cfm, l/s

% ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa ft/min, m/s,

“H

2

O, Pa

1 to 127

0 to -

0.19500 “H

2

O

0 to 0.19500 “H

2

O

0 to -

0.19500 “H

2

O

0 to -

0.19500 “H

2

O

0 to 0.19500 “H

2

O

0 to 0.19500 “H

2

O

-

0.19500 to 0.19500 “H

2

O

-

0.19500 to 0.19500 “H

2

O

Min Exhaust

Setpoint

Min Exhaust

Alarm

MAC ID**

Status Index

Control Mode

Units Value

Emergency

Mode

Analog Value

Analog Value

Analog Value

Multi-State

Input

Multi-State

Value

Multi-State

Value

Multi-State

Value

10

11

12

1

2

3

4 cfm, l/s cfm, l/s

0 to 30,000 cfm

0 to 30,000 cfm

1 to 999

1 Normal

2 Low Alarm

3 High Alarm

4 Min Exhaust Alarm

5 Sec Sens Low Alarm

6 Sec Sens High Alarm

7 Data Error

8 Emergency

1 Negative

2 Positive

3 No Isolation

1 ft/min

2 m/s

3 “H

2

O

4 Pa

1 Exit Emergency Mode

2 Enter Emergency Mode

3 Normal

* The units are based on the value of the Units Value object. When the Units Value is set to 1 or 3 the units are in English form. When the Units Value is set to 2 or 4 the units are metric. English is the default value.

** The MAC ID defaults to 863. The device index is the MAC ID multiplied by 1000, summed with the MAC Address of the device. The default device index is therefore 863001.

54 Appendix B

Appendix C

Wiring Diagrams

8631-HM Back Panel Wiring

PIN #

DIM

Input / Output /

Communication

1, 2 Input

3, 4 Output

5, 6 Input

7, 8 Communications

9, 10 Not Used

11, 12 Input

13, 14 Output

15, 16 Not Used

17, 18 Not Used

19, 20 Input

21, 22 Input

23, 24 Not Used

Description

24 VAC to power Digital Interface Module (DIM) and sensor.

NOTE: 24 VAC becomes polarized when connected to DIM.

24 VAC power for Pressure Sensor

0 to 10 VDC pressure sensor signal

RS-485 communications between DIM and pressure sensor

Non powered switch input

See menu item ROOM MODE . When ROOM MODE menu item

is in the KEY SWITCH mode a TSI Model 8694-XX key switch can switch the room mode. Open contacts from the Model 8694-

XX key switch make the room mode POSITIVE. Closed contacts from the Model 8694-XX key switch make the room mode NEGATIVE. A resistance value of 270 k

make the room mode NEUTRAL (NO ISOLATION).

Alarm relay - N.O., closes in alarm condition.

See menu items: NEG LOW ALM, NEG HIGH ALM, POS LOW

ALM, POS HIGH ALM, MIN CFM ALM, 2 LOW ALM and 2

HIGH ALM.

0 to 10 VDC pressure sensor signal (second sensor)

0 to 10 VDC flow station signal

25, 26 Output

27, 28 Communications

0 to 10 VDC pressure differential signal.

See menu item OUTPUT SIG

LonWorks

®

or BACnet

®

MSTP communications to building management system.

WARNING: The wiring diagram shows polarity on many pairs of pins: + / -, H / N, A / B. Damage to the DIM may occur if polarity is not observed.

55

8631-HC Back Panel Wiring

PIN #

DIM

Input / Output /

Communication

1, 2 Input

3, 4 Output

5, 6 Input

7, 8 Communications

9, 10 Not Used

11, 12 Input

13, 14 Output

15, 16 Not Used

17, 18 Output

Description

24 VAC to power Digital Interface Module (DIM) and sensor.

NOTE: 24 VAC becomes polarized when connected to DIM.

24 VAC power for Pressure Sensor

0 to 10 VDC pressure sensor signal

RS-485 communications between DIM and pressure sensor

Non powered switch input

See menu item ROOM MODE . When ROOM MODE menu item

is in the KEY SWITCH mode a TSI Model 8694-XX key switch can switch the room mode. Open contacts from the Model 8694-

XX key switch make the room mode POSITIVE. Closed contacts from the Model 8694-XX key switch make the room mode NEGATIVE. A resistance value of 270 k

make the room mode NEUTRAL (NO ISOLATION).

Alarm relay - N.O., closes in alarm condition.

See menu items: NEG LOW ALM, NEG HIGH ALM, POS LOW

ALM, POS HIGH ALM, MIN CFM ALM, 2 LOW ALM and 2

HIGH ALM.

0 to 10 VDC control signal. 10 VDC = open (n.o. damper).

See menu item CONTROL SIG .

0 to 10 VDC pressure sensor signal (second sensor)

0 to 10 VDC flow station signal

19, 20 Input

21, 22 Input

23, 24 Not Used

25, 26 Output

27, 28 Communications

0 to 10 VDC pressure differential signal.

See menu item OUTPUT SIG

LonWorks

®

or BACnet

®

MSTP communications to building management system.

WARNING: The wiring diagram shows polarity on many pairs of pins: + / -, H / N, A / B. Damage to the DIM may occur if polarity is not observed.

56 Appendix C

Jumper Wiring Information - Damper systems

The Model 8631 PresSura Room Pressure Controller modulates electric actuated dampers mounted in the exhaust or supply ducts. The TSI damper / actuators are shipped configured to be mounted in the exhaust duct. The actuators have a jumper installed to meet the exhaust duct configuration. If the damper is mounted in the supply duct, the damper will probably rotate in the

opposite direction. The menu item CONTROL SIG (CONTROL menu) reverses the control output

to eliminate the problem. Changing the jumper on the actuator is not normally required.

Table B1. DIP Switch Configurations

Electric Actuator

Damper Location

Supply Air

Exhaust Air

P/N 800370

Dip Switch

On (reverse)

Off (direct)

Wiring Diagrams

57

58

Figure 10: Wiring Diagram

– 8631-HM Monitor

Appendix C

Figure 11: Wiring Diagram

– 8631-HM(-BAC) Optional Second Sensor

Wiring Diagrams

59

60

Figure 12: Wiring Diagram- 8631-HC Controller with Electric Actuator

Appendix C

Figure 13: Wiring Diagram

– 8631-HC(-BAC) Optional Second Sensor

Wiring Diagrams

61

62

Figure 14: Wiring Diagram

– 8631-HC Controller with VFD

Appendix C

Appendix D

Access Codes

There is an access code to the different menus of the PresSura Room Pressure

Monitor/Controller. When an access code is required, pressing the following key sequence provides access to the menus.

Key # Configure

1 EMERGENCY

2

3

4

5

MUTE

MUTE

MENU

AUX

63

TSI Incorporated

– Visit our website www.tsi.com for more information.

USA

UK

France

Tel: +1 800 874 2811

Tel: +44 149 4 459200

Tel: +33 4 91 11 87 64

Germany

Tel: +49 241 523030

P/N 1980488 Rev. J

India

China

©2012 TSI Incorporated

Tel: +91 80 67877200

Tel: +86 10 8251 6588

Singapore

Tel: +65 6595 6388

Printed in U.S.A.

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