Trane Tracer CH530 User manual

User Guide

Tracer CH530™

Control System for Chillers

RTWD/RTUD 060-250

RLC-SVU05A-E4

General information

Foreword

These instructions are given as a guide to good practice in the installation, start-up, operation, and maintenance by the user, of Trane

CH530 chiller control system on chillers. They do not contain full service procedures necessary for the continued successful operation of this equipment. The services of a qualified technician should be employed through the medium of a maintenance contract with a reputable service company. Read this manual thoroughly before unit start-up.

Warnings and cautions

Warnings and Cautions appear at appropriate sections throughout this manual. Your personal safety and the proper operation of this machine require that you follow them carefully. The constructor assumes no liability for installations or servicing performed by unqualified personnel.

WARNING!

: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION!

: Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury. It may also be used to alert against unsafe practices or for equipment or property-damage-only accidents.

Safety recommendations

To avoid death, injury, equipment or property damage, the following recommendations should be observed during maintenance and service visits:

1. Disconnect the main power supply before any servicing on the unit.

2. Service work should be carried out only by qualified and experienced personnel.

Reception

On arrival, inspect the unit before signing the delivery note.

Reception in France only:

In case of visible damage: The consignee (or the site representative) must specify any damage on the delivery note, legibly sign and date the delivery note, and the truck driver must countersign it. The consignee (or the site representative) must notify

Trane Epinal Operations - Claims team and send a copy of the delivery note. The customer (or the site representative) should send a registered letter to the last carrier within 3 days of delivery.

Reception in all countries except

France:

In case of concealed damage: The consignee (or the site representative) must send a registered letter to the last carrier within 7 days of delivery, claiming for the described damage. A copy of this letter must be sent to Trane

Epinal Operations - Claims team.

Note

: for deliveries in France, even concealed damage must be looked for at delivery and immediately treated as visible damage.

© 2009 Trane

RLC-SVU05A-E4

RLC-SVU05A-E4

General information

Warranty

Warranty is based on the general terms and conditions of the manufacturer. The warranty is void if the equipment is repaired or modified without the written approval of the manufacturer, if the operating limits are exceeded or if the control system or the electrical wiring is modified. Damage due to misuse, lack of maintenance or failure to comply with the manufacturer's instructions or recommendations is not covered by the warranty obligation. If the user does not conform to the rules of this manual, it may entail cancellation of warranty and liabilities by the manufacturer.

Maintenance contract

It is strongly recommended that you sign a maintenance contract with your local Service Agency. This contract provides regular maintenance of your installation by a specialist in our equipment.

Regular maintenance ensures that any malfunction is detected and corrected in good time and minimizes the possibility that serious damage will occur. Finally, regular maintenance ensures the maximum operating life of your equipment. We would remind you that failure to respect these installation and maintenance instructions may result in immediate cancellation of the warranty.

Training

To assist you in obtaining the best use of it and maintaining it in perfect operating condition over a long period of time, the manufacturer has at your disposal a refrigeration and air conditioning service school. The principal aim of this is to give operators and technicians a better knowledge of the equipment they are using, or that is under their charge. Emphasis is particularly given to the importance of periodic checks on the unit operating parameters as well as on preventive maintenance, which reduces the cost of owning the unit by avoiding serious and costly breakdown.

3

4

Contents

General Information

Overview

DynaView Interface

Display Screens

Diagnostics

TechView Interface

Software Download

6

8

28

54

55

2

5

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RLC-SVU05A-E4

Overview

The Trane CH530 control system that runs the chiller consists of several elements:

• The main processor collects data, status, and diagnostic information and communicates commands to the LLID (for Low

Level Intelligent Device)

bus. The main processor has an integral display (DynaView).

• LLID bus. The main processor communicates to each input and output device (e.g. temperature and pressure sensors, low voltage binary inputs, analog input/output) all connected to a four-wire bus, rather than the conventional control architecture of signal wires for each device.

• The communication interface to a building automation system

(BAS).

• A service tool to provide all service/maintenance capabilities.

Main processor and service tool

(TechView) software is downloadable from

www.Trane.com

. The process is discussed later in this section under TechView Interface.

DynaView provides bus management. It has the task of restarting the link, or filling in for what it sees as "missing" devices when normal communications has been degraded. Use of

TechView may be required.

The CH530 uses the IPC3 protocol based on RS485 signal technology and communicating at 19.2 Kbaud to allow 3 rounds of data per second on a 64-device network.

Most diagnostics are handled by the

DynaView. If a temperature or pressure is reported out of range by a LLID, the DynaView processes this information and calls out the diagnostic. The individual LLIDs are not responsible for any diagnostic functions.

Note

: It is imperative that the CH530

Service Tool (TechView) be used to facilitate the replacement of any

LLID or reconfigure any chiller

component.

Controls Interface

DynaView (picture on cover)

Each chiller is equipped with the

DynaView interface. DynaView has the capability to display additional information to the advanced operator including the ability to adjust settings. Multiple screens are available and text is presented in multiple languages as factoryordered or can be easily downloaded online.

TechView

TechView can be connected to the

DynaView module and provides further data, adjustment capabilities, diagnostics information, downloadable software, and downloadable languages.

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6


Power Up

On power-up, Dynaview will progress through 3 screens.

The first screen (Figure 1) will display for 3-10 seconds. This screen will give the status of the

Application software, the Boot

Software P/N, selftest results and the application part number. The contrast is adjustable from this screen. The message "Selftest passed" may be replaced with "Err2:

RAM Error" or "Err3: CRC Failure"

Note that the Application and Boot software numbers will vary according to the unit type.

If no application is found, the screen

(Figure 2) will display instead of

Figure 1.

Figure 1

Figure 2

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RLC-SVU05A-E4


The second screen (Figure 3) will display for 15-25 seconds. If a valid configuration is present, "Tracer

CH530" will also be displayed. If the

MP configuration is found to be invalid, "MP: Invalid Configuration" is displayed indefinitely. Contact your local Trane service technician.

The third screen is the first screen of the application.

Figure 3

Figure 4

7

8

Figure 5 - Basic Screen Format


The display on DynaView is a

1/4 VGA display with a resistive touch screen and an LED backlight.

The display area is approximately

4 inches wide by 3 inches high

(102mm x 60mm).

CAUTION!

Equipment Damage! Putting excessive pressure on the touch screen could cause damage. It takes less than 7 kg of force to break the screen.

In this touch screen application, key functions are determined completely by software and change depending upon the subject matter currently being displayed. The basic touch screen functions are outlined below.

Radio Buttons

Radio buttons show 1 menu choice among 2 or more alternatives, all visible. The possible selections are each associated with a button. The selected button is darkened, presented in reverse video to indicate it is the selected choice.

The full range of possible choices as well as the current choice is always in view.

Spin Value Buttons

Spin values are used to allow a variable setpoint to be changed, such as leaving water setpoint. The value increases or decreases by touching the (+) or (-) arrows.

Action Buttons

Action buttons appear temporarily and provide the user with a choice such as Enter or Cancel.

File Folder Tabs

File folder tabs are used to select a screen of data. The tabs are in

1 row across the top of the display.

The user selects a screen of information by touching the appropriate tab.

Display Screens

The main body of the screen is used for description text, data, setpoints, or keys (touch sensitive areas). The

Chiller Mode is displayed here.

A double arrow pointing to the right indicates more information is available about the specific item on that same line. Pressing it will bring you to a sub-screen that will present the information or allow changes to settings.

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RLC-SVU05A-E4


The bottom of the screen (7) is present in all screens and contains the following functions. The contrast (8,9) may require readjustment at ambient temperatures significantly different from those present at last adjustment. The other functions are critical to machine operation. The

AUTO and STOP keys are used to enable or disable the chiller. The key selected is in black (reverse video). The chiller will stop when the STOP key is touched and after completing the Run Unload mode.

Touching the AUTO key will enable the chiller if no diagnostic is present. (A separate action must be taken to clear active diagnostics.)

The AUTO and STOP keys take precedence over the Enter and

Cancel keys. (While a setting is being changed, AUTO and STOP keys are recognized even if Enter or

Cancel has not been pressed.) The

ALARMS button appears only when an alarm is present, and blinks (by alternating between normal and reverse video) to draw attention to a diagnostic condition. Pressing the

ALARMS button takes you to the corresponding tab for additional information.

Note: screens may differ according to unit type or configuration. They should be considered as examples.

Keypad/Display Lockout

Feature

Note

: The DynaView display and

Touch Screen Lock screen is shown above. This screen is used if the

Display and touch screen and lock feature is enabled. Thirty minutes after the last keystroke, this screen is displayed and the Display and

Touch Screen is locked out until the sequence "159 <ENTER>" is

pressed. Until the proper password is entered, there will be no access to the DynaView screens including all reports, setpoints, and

Auto/Stop/Alarms/Interlocks. The password "159" can not be changed from either DynaView or TechView.

For setting changes, use the password "314 <ENTER>".

Figure 6 - Keypad

1

System/Circuit Selection Buttons

On some report and setting screens, radio buttons on the top of the screen shall be presented to allow the user to select subscreens based on system-level data and per-circuit data.

For single-circuit units with system/circuit selection buttons, the buttons shall be labeled (in English)

“System” and “Ckt”. For two-circuit units with system/circuit selection buttons, the buttons shall be labeled “System”, “Ckt1”, and

“Ckt2”.

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Main Screens

The Main screen is a “dashboard” of the chiller. High level status information is presented so that a user can quickly understand the mode of operation of the chiller.

The Chiller Operating Mode will present a top level indication of the chiller mode (i.e. Auto, Running,

Inhibit, Run Inhibit, etc.) The

“additional info” icon will present a subscreen that lists in further detail the subsystem modes.

The Main screen shall be the default screen. After an idle time of

30 minutes the CH530 shall display the Main screen with the first data fields. The remaining items (listed in the following table) will be viewed by selecting the up/down arrow icons.

Figure 7 - Main screen

Chiller Mode:

Circuit 1 Mode:

Circuit 2 Mode:

Evap Ent / Lvg Water Temp:

Cond Ent / Lvg Water Temp:

Active Chilled Water Setpoint:

Running

Running - Limit

Auto

12 / 7 C

30 / 35 C

7 C

RLC-SVU05A-E4


Table 1 - Main Screen Data Fields Table

Description

1.

Chiller Mode (>> submodes)

2.

3.

4.

5.

Circuit 1 Mode (>> submodes)

Circuit 2 Mode (>> submodes)

Evap Ent/Lvg Water Temp

Cond Ent/Lvg Water Temp

6.

7.

8.

9.

10.

11.

12.

13.

14.

Active Chilled Water Setpoint (>>source) (>> front panel setpoint) from arbitration setpoint screen

Active Hot Water Setpoint (>>source) (>> front panel setpoint) - from arbitration setpoint screen

Average Line Current

Active Current Limit Setpoint (>> source) (>> front panel setpoint) - from arbitration setpoint screen

Active Ice Termination Setpoint

(>>front panel setpoint)

Outdoor Air Temperature

Software Type

Software Version

Units

enumeration enumeration enumeration

F / C

F / C

F / C

F / C

%RLA

% RLA

F / C

F / C enumeration

Resolution

0.1

0.1

0.1

0.1

1

1

0.1

0.1

RTWD / RTUD

X.XX

Dependencies

Water Cooled only (i.e. RTWD or

RTUD with ACFC=None)

Hot Water Option installed only

If Ice Building Option is installed

Only if OA sensor is installed

Chiller Mode

The machine-operating mode indicates the operational status of the chiller. A subscreen with additional mode summary information will be provided by selection of an additional information icon (>>). The operating mode line will remain stationary while the remaining status items scroll with the up/down arrow keys.

Active Chilled Water Setpoint and

Active Hot Water Setpoint

The active chilled water setpoint is the setpoint that is used in cool mode. The active hot water setpoint is the setpoint that is used in heat mode. Both setpoints result from the logical hierarchy of setpoint arbitration by the main processor.

The water setpoint will be displayed to 0.1 degrees Fahrenheit or

Celsius.

Touching the double arrow to the left of the Active Chilled Water

Setpoint or to the left of the Active

Hot Water Setpoint will take the user to the respective active water setpoint arbitration sub-screen.

Figure 8 - Active Chilled Water Subscreen

:

Active Water Setpoint Arbitration

Subscreen

The active water setpoint is that setpoint to which the unit is currently controlling. It is the result of arbitration between the front panel, BAS, and external setpoints.

The active chilled water water setpoint may also be subjected to a form of chilled water reset.

RLC-SVU05A-E4 11


Other Active Setpoints

The Active Current Limit Setpoint will behave the same way as the

Active Chilled Water Setpoint, with the exception that Active Current

Limit Setpoint does not have an external source.

12 RLC-SVU05A-E4


Chiller Level Mode

Top Level Mode

Stopped

Stopped Sub Modes

Local Stop

Immediate Stop

No Circuits Available

Diagnostic Shutdown - Manual Reset

Cond Pmp Strt Dly (Head Pres Ctrl) min:sec

Chiller Operating Mode

The machine-operating mode indicates the operational status of the chiller.

A subscreen with additional mode summary information will be provided by selection of an additional information icon (>>). The operating mode line will remain stationary while the remaining status items scroll with the up/down arrow keys.

Table 2 - Main screen menu, Chiller Operating Modes - Top Level

Description

The chiller is not running either circuit, and cannot run without intervention.

Description

Chiller is stopped by the DynaView Stop button command- cannot be remotely overridden.

Chiller is stopped by the DynaView Immediate Stop (by pressing the Stop then Immediate Stop buttons in succession) - previous shutdown was manually commanded to shutdown immediately.

The entire chiller is stopped by circuit diagnostics or lockouts that may automatically clear.

The chiller is stopped by a diagnostic that requires manual intervention to reset.

Only possible when Condenser Head Pressure Control option is enabled and the condenser pump is being manually commanded to run - this wait may be necessary due to the Head Pressure control device's stroke time.

Top Level Mode


Run Inhibit

Run Inhibit Sub Modes

No Circuits Available

Ice Building Is Complete

Ice to Normal Transition

Start(ing is)* Inhibited by BAS (Building

Automation System)*

Start(ing is)* Inhibited by External Source

Diagnostic Shutdown - Auto Reset

Waiting for BAS Communications (to Establish

Operating Status)*

Start(ing is)* Inhibited by Low Ambient

Temp(erature)*

Start(ing is)* Inhibited by Local Schedule

Description

The chiller is currently being inhibited from starting (and running), but may be allowed to start if the inhibiting or diagnostic condition is cleared.

Description

The entire chiller is stopped by circuit diagnostics or lockouts that may automatically clear.

The chiller is inhibited from running as the Ice Building process has been normally terminated on the evaporator entering temperature. The chiller will not start unless the ice building command (hardwired input or Building Automation System command) is removed or cycled.

The chiller is inhibited from running for a brief period of time if it is commanded from active ice building mode into normal cooling mode via the ice building hardwired input or Tracer. This allows time for the external system load to "switchover" from an ice bank to the chilled water loop, and provides for a controlled pull down of the loop's warmer temperature. This mode is not seen if the ice making is automatically terminated on return brine temperature per the mode below.

Chiller is stopped by Tracer or other BAS system.

The chiller is inhibited from starting or running by the "external stop" hardwired input.

The entire chiller is stopped by a diagnostic that may automatically clear.

The chiller is inhibited because of lack of communication with the BAS. This is only valid 15 minutes after power up.

The chiller is inhibited based on the outdoor air temperature.

The chiller is inhibited from starting based on the local time of day scheduling (option)

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Top Level Mode

Auto

Auto Sub Modes

Waiting For Evap(orator)* Water Flow

Waiting For A Need To Cool

Waiting For A Need To Heat

Power Up Delay Inhibit: min:sec


Top Level Mode

Waiting to Start


Sub Modes

Waiting For Condenser Water Flow

Cond Water Pump PreRun Time min:sec

Cond Pmp Strt Dly (Head Pres Ctrl) min:sec

Cprsr Strt Delay (Head Pres Ctrl) min:sec

Top Level Mode

Running


Running Sub Modes

Maximum Capacity

Capacity Control Softloading

Current Control Softloading

Top Level Mode


Running - Limit

Running - Limit

Sub Modes

<none applicable>

Description

The chiller is not currently running but can be expected to start at any moment given that the proper conditions and interlocks are satisfied.

Description

The unit will wait up to 20 minutes in this mode for water flow to be established per the flow switch hardwired input.

The chiller will wait indefinitely in this mode, for a leaving water temperature higher than the Chilled

Water Setpoint plus some control dead-band.

The chiller will wait indefinitely in this mode, for a leaving water temperature lower than the Hot Water

Setpoint plus some control dead-band.

On Power up, the chiller will wait for the Power Up Delay Timer to expire.

Description

The chiller is not currently running and there is a call for cooling but the lead circuit start is delayed by certain interlocks or proofs. Further information is provided by the sub-mode:

Description

The chiller will wait up to 4 minutes in this mode for condenser water flow to be established per the flow switch hardwired input.

The chiller will wait up to 30 minutes (user adjustable) in this mode for to allow the condenser water loop to equalize in temperature

Only possible when Condenser Head Pressure Control option is enabled, this wait may be necessary due to the Head Pressure control device's stroke time.

Only possible when Condenser Head Pressure Control option is enabled, this wait may be necessary due to the Head Pressure control device's stroke time

Description

At least one circuit on the chiller is currently running.

Description

The chiller is operating at its maximum capacity.

The control is limiting the chiller loading due to capacity based softloading setpoints.

The chiller is running, and loading of individual compressors may be limited by a gradual filter of the chiller's softloading current limit setpoint. The starting current limit and the settling time of this filter is user adjustable as part of the current control softload feature. The mode will be displayed as long as the Current Control Softloading limit is ramping or "settling".

Description

At least one circuit on the chiller is currently running, but the operation of any of the circuits on the chiller is being actively limited by a chiller level limit. Other sub modes that apply to the Chiller

Running top level modes may also be displayed here. Refer to the list of circuit limit modes for circuit limits that will cause display of this Chiller Level Running Limit mode.

Description

Design Note: Hot Start Limit is applied and annunciated at a circuit level, even though it is based on the chiller's leaving water temperature.

RLC-SVU05A-E4


Top Level Mode


Shutting Down

Shutting Down Sub Modes

Operational Pumpdown

Evaporator Water Pump Off Delay: MIN:SEC

Cond Water Pump Off Delay: MIN:SEC

Top Level Mode


Misc.

Misc. Sub Modes

Manual Evap(orator)* Water Pump Override

Diagnostic Evap Water Pump Override

Diagnostic Cond Water Pump Override

Local Schedule Active

Manual Condenser Water Pump Override

Manual Compressor Control Signal

Night Noise Setback

Hot Water Control

Chilled Water Control

Ice Building

Description

The chiller is still running but shutdown is imminent. The chiller is going through a compressor rununload or extended operational pumpdown of the lag circuit/compressor (or all circuits simultaneously).

Description

The lag circuit (or all circuits) is in the process shutting down by performing an operational pumpdown just prior to stopping the circuit's compressor. The EXV is commanded closed. Pumpdown will terminate when both the liquid level and the evap pressure are low (below specific criteria) or after a specific time has expired.

The Evaporator water pump is continuing to run past the shutdown of the compressors, executing the pump off delay timer.

The Condenser water pump is continuing to run past the shutdown of the compressors, executing the pump off delay timer.

Description

These sub modes may be displayed in most of the top level chiller modes

Description

The Evaporator water pump relay is on due to a manual command.

The Evaporator water pump relay is on due to a diagnostic.

The Condenser water pump relay is on due to a diagnostic.

The local time of day scheduler (option) is operational and could automatically change modes or setpoints as scheduled

The condenser water pump relay is on due to a manual command.

Chiller capacity control is being controlled by DynaView or TechView.

The Night Noise Setback feature has been activated. If the unit is running, fans will be running at low speed.

These modes are mutually exclusive and they indicate that the chiller is controlling to the active hot water setpoint, the active chilled water setpoint, or the active ice termination setpoint respectively.

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Circuit Level Mode

Top Level Mode

Stopped

Stopped Sub Modes

Diagnostic Shutdown - Manual Reset

Front Panel Circuit Lockout

External Circuit Lockout


Top Level Mode

Run Inhibit

Run Inhibit

Sub Modes

Diagnostic Shutdown - Auto Reset

Low Oil Flow Cool Down Time mn:sc

Restart Inhibit min:sec

Top Level Mode


Auto

Auto Sub Modes

Calibrating EXV

Top Level Mode




Sub Modes

Start Inhibited Waiting For Oil

Waiting For EXV Preposition


Table 2 - Circuit Level Operating Modes

Description

The circuit is not running, and cannot run without intervention.

Description

The circuit has been shutdown on a latching diagnostic.

The circuit is manually locked out by the circuit lockout setting - the nonvolatile lockout setting is accessible through either the DynaView or TechView.

The respective circuit is locked out by the external circuit lockout binary input.

Description

The given circuit is currently being inhibited from starting (and running), but may be allowed to start if the inhibiting or diagnostic condition is cleared.

Description

The circuit has been shutdown on a diagnostic that may clear automatically.

The cool-down period is necessary to allow the compressor rotors to cool after starts.

The compressor (and therefore, its circuit) is currently unable to start due to its restart inhibit timer. A given compressor is not allowed to start until 5 minutes (adj) has expired since its last start, once a number of "free starts" have been used up.

Description

The circuit is not currently running but can be expected to start at any moment given that the proper conditions are satisfied.

Description

This submode is displayed when the EXV is performing a calibration. A calibration is only performed when the chiller is not running and never more frequently than once every 24 hours

Description

The chiller is going through the necessary steps to allow the lead circuit to start.

Description

The compressor (and thus its circuit) will wait up to 2 minutes in this mode for oil level to appear in the oil tank.

The Chiller will wait for the time it takes the EXV to get to its commanded pre-position prior to starting the compressor. This is typically a relatively short delay and no countdown timer is necessary (less than 15 seconds)

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Top Level Mode

Running

Running

Sub Modes

Establishing Min(imum)* Cap(acity)* - Low

Diff(errential)* Pressure

Description

The compressor on the given circuit is currently running.

Description

Establishing Min Cap - High Disch Temp

The circuit is experiencing low system differential pressure and its compressor is being force loaded, irregardless Chilled Water Temperature Control, to develop pressure sooner.

The circuit is running with high discharge temperatures and its compressor is being forced loaded to its step load point, without regard to the leaving water temperature control, to prevent tripping on high compressor discharge temperature.

The following modes annunciations have not been implemented as a display but are actually operational in the EXV liquid level control algorithm. The modes included here as possible future annunciated modes

EXV Controlling Differential Pressure

EXV Controlling for Low Evaporator Pressure

Liquid level control of the Electronic Expansion Valve has temporarily been suspended. The EXV is being modulated to control for a minimum differential pressure. This control implies low liquid levels and higher approach temperatures, but only as is necessary to provide minimum oil flow for the compressor until the condenser water loop can warm up to approx 50F. (Future mode display - display of mode not implemented in Phase 1 or 2 although present in algorithms.)

Liquid level control of the Electronic Expansion Valve has temporarily been suspended. The EXV is being modulated to control for a minimum evaporator pressure that is based of the pressure of the

Low Refrigerant Temperature Cutout. This control will tend to increase the liquid level above the setpoint or to open the valve more quickly than liquid level control can, in order to avoid an LRTC trip.

It is most often invoked transiently to help open the EXV in the event of rapidly falling liquid level and rapidly declining evaporator pressures. (Future Mode display, - display of mode not implemented in

Phase 1 or 2 although present in algorithms.)


Top Level Mode Description

Running - Limit

The circuit, and compressor are currently running, but the operation of the chiller/compressor is being actively limited by the controls. Further information is provided by the sub-mode.* See the section below regarding criteria for annunciation of limit modes

Running - Limit

Sub Modes

Description

Current Limit

High Condenser Pressure Limit

The compressor is running and its capacity is being limited by high currents. The current limit setting is 120% RLA (to avoid overcurrent trips) or lower as set by the compressor's "share" of the active current limit (demand limit) setting for the entire chiller.*

The circuit is experiencing condenser pressures at or near the condenser limit setting. Compressors on the circuit will be unloaded to prevent exceeding the limits.*

Low Evaporator Rfgt Temperature Limit

Hot Start Limit

The circuit is experiencing saturated evaporator temperatures at or near the Low Refrigerant

Temperature Cutout setting. Compressors on the circuit will be unloaded to prevent tripping. *

This mode will occur if the leaving evaporator water temperature exceeds 75F (for SW version 6.30

and earlier) or 90 F (for software 7.01 and later) at the point at which the step load for the respective circuit would be desired. This is often the case in a high water temperature pulldown. While in this mode, no compressor on the circuit will be allowed to load past its minimum load capacity step, but it will not inhibit other compressors from staging on. This mode is necessary to prevent nuisance trips due to Compressor Overcurrent or High Pressure Cutout. Reasonable pulldown rates can still be expected despite this limit, since the compressor's capacity even at partial load is much greater at high suction temperatures.

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Top Level Mode


Shutting Down

Preparing Shutdown

Sub Modes

Description

The circuit is preparing to de-energize the compressor.

Description

Operational Pumpdown

The circuit is in the process shutting down by performing an operational pumpdown just prior to stopping the last running compressor. The EXV is commanded closed. Pumpdown will terminate when both the liquid level and the evap pressure are low (below specific criteria) or after a specific time has expired.

The compressor is in its run unload time. The number of seconds remaining in run unload is shown in the submode. The run unload time must expire before the compressor will shut down.

Compressor Unloading: MIN:SEC

Top Level Mode


Misc.

Description

These sub modes may be displayed in most of the top level circuit modes

Description Misc. Sub Modes

Service Pumpdown The circuit is currently performing a service pumpdown.

Restart Time Inhibit: MIN:SEC If there is accumulated Restart Inhibit Time, it must expire before a compressor is allowed to start.

* Mode text strings in parenthesis for TechView display only - available space for DynaView text strings is limited.

RLC-SVU05A-E4


Reports Screen

The Reports tab will allow a user to select from a list of possible reports headings (i.e. Custom, ASHRAE

Guideline 3, Refrigerant, etc.).

Each report will generate a list of status items as defined in the following tables.

Figure 9 - Reports screen

Main

Evaporator

Condenser

Compressor

ASHRAE Chiller Log

Historic Diagnostics

Reports Settings

Auto

Stop

Alarms

Table 3- Reports Screen

Report Menu

Description

1.

Evaporator

2. Condenser

3. Compressor

4. ASHRAE Chiller Log

5. Historic Diagnostics

Report name: System Evaporator

<| Back System Ckt1 Ckt2

<scroll up/down buttons>

Description

1.

Evap Entering Water Temperature

2. Evap Leaving Water Temperature

3. Evap Water Flow Switch Status

Report name: Circuit Evaporator



Description

1.

Evap Entering Water Temperature


3. Evap Sat Rfgt Temp

4. Suction Pressure

5. Evap Approach Temp


7.

Expansion Valve Position

8. Expansion Valve Position Steps

9. Evaporator Liquid Level

Resolution

+ XXX.X

+ XXX.X

(Flow, No Flow)

Units

Temperature

Temperature

Enum

Dependencies

Resolution

+ XXX.X

+ XXX.X

+ XXX.X

XXX.X

+ XXX.X

(Flow, No Flow)

XXX.X

XXXX

XX.X

Units

Temperature

Temperature

Temperature

Pressure

Temperature

Enum

Percent

Steps

Height

Dependencies

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Report name: System Condenser



Description

1.

Cond Entering Water Temp

2. Cond Leaving Water Temp

3. Cond Water Flow Switch Status

4. Outdoor Air Temperature

5. Cond Head Pressure Ctrl Command

Report name: Circuit Condenser



Description

1.

Cond Entering Water Temp

2. Cond Leaving Water Temp

3. Condenser Air Flow

4. Cond Inverter Speed


6. Cond Water Flow Switch Status

7.

Cond Sat Rfgt Temp

8. Cond Rfgt Pressure

9. Differential Pressure

10. Cond Approach Temp

Report name: System Compressor



Description

1.

Average Line Current

2. Unit Volts

3. Unit Running Time

4. Power Demand

5. Power Demand Time Period

6. Energy Consump-Resettable

7.

Time of Last Reset

8. Energy Consump-NonReset

Resolution

+ XXX.X

+ XXX.X

(Flow, No Flow)

+ XXX.X

XXX

Units

Temperature

Temperature

Enum

Temperature

%

Dependencies

Water Cooled only (i.e. RTWD or RTUD with ACFC=None)


Water Cooled only (i.e. RTWD or RTUD with ACFC=None))


Only if Cond Head pressure control option is installed

Resolution

+ XXX.X

+ XXX.X

XXX

XXX

+ XXX.X

(Flow, No Flow)

+ XXX.X

XXX.X

XXX.X

+ XXX.X

Units

Temperature

Temperature

%

%

Temperature

Enum

Temperature

Pressure

Pressure

Temperature

Dependencies



Air Cooled (i.e RTUD with ACFC=INT)

Air Cooled with Low Ambient Var Spd fan (i.e RTUD with ACFC<>None and with LAFC = VARA or VARP)




Resolution

XXX

XXX

XXXX:XX

Units

%RLA

Volts hr:min kW min kWh time-date

Kwh

Dependencies

Only if pwr meter option installed





RLC-SVU05A-E4


Report name: Circuit Compressor



Description

1.

Oil Pressure

2. Compressor Rfgt Dschg Temp

3. Cond Sat Rfgt Temp

4. Average Line Current

5. % RLA L1 L2 L3

6. Amps L1 L2 L3

7.

Phase Voltages

8. Power Consumption

9. Load Power Factor

10. Compressor Starts:

11. Compressor Running Time:

Report name: System ASHRAE Chiller Log



Description

1.

Current Time/Date

2. Chiller Mode

3. Active Chilled Water Setpoint

4. Active Hot Water Setpoint

5. Evap Entering Water Temperature


7.

Average Leaving Water Temp



Report name: Circuit ASHRAE Chiller Log



Description

1.

Circuit Mode

2. Evap Sat Rfgt Temp

3. Suction Pressure

4. Evap Approach Temp

5. Cond Sat Rfgt Temp

6. Cond Rfgt Pressure

7.

Cond Approach Temp

8. Compressor Starts

9. Compressor Running Time

Resolution Units

XX:XX mmm dd, yyyy Time / Date

Enum

XXX.X

XXX.X

Temperature

Temperature

XXX.X

XXX.X

XXX.X

XXX.X

Temperature

Temperature

Temperature

Enum

Temperature

Resolution

XXX.X

XXX.X

XXX.X

XXX.X

XXX.X

XXX.X

XXXX

XX:XX

Resolution

XXX.X

+ XXX.X

+ XXX.X

XXX

XXX.X

XXX.X

XXX

XXX

X.XXX

XXXX

XXXX:XX

Units

Pressure

Temperature

Temperature

%RLA

%RLA

Amps

Vac kW

Integer hr:min

Units

Enum

Temperature

Pressure

Temperature

Temperature

Pressure

Temperature

Integer

Hours:Minute

Items 1 - 9 will be unique for each circuit, ckt1, and ckt2.

Dependencies




Dependencies

Hot Water Option installed only


Dependencies


RLC-SVU05A-E4 21

22


Settings Screen

The Settings screen provides a user the ability to adjust settings justified to support daily tasks. The layout provides a list of sub-menus, organized by typical subsystem.

This organization allows each subscreen to be shorter in length which should improve the users navigation.

Figure 10 - Settings screen

Main Reports Settings

Unit

Feature Settings

Control Settings

Manual Control Settings

Display Settings

Stop

Settings Menu

Description

1.

Chiller

2. Feature Settings

3. Manual Control Settings

4. Display Settings

Auto Alarms

RLC-SVU05A-E4

RLC-SVU05A-E4


Chiller

Description

Resolution or (Enumerations),

Default

(Cool, Heat), Cool 1.

Front Panel Cool/Heat Command

2. Front Panel Chilled Water Setpt

3. Front Panel Hot Water Setpt

4. Front Panel Current Limit Setpt

5. Front Panel Ice Build Cmd

6. Front Panel Ice Termination Setpoint

7.

Setpoint Source

(2)

+ XXX.X

(2)

+ XXX.X

1

On/Auto

XXX.X

8. Leaving Water Temp Cutout

9. Low Refrigerant Temp Cutout

10. Staging Sequence

11. Condenser Pump Prestart Time

(BAS/Ext/FP, Ext/ Front Panel,

Front Panel), BAS/Ext/FP

XX.X

XX.X

(Bal Starts/Hrs, Fixed), Bal Starts/Hrs

XX , 0

Feature Settings

Note: Purple Box Designates Phase 2 Air Cooled RTUD items.

Description

1. Cooling Low Ambient Lockout

1a. Cooling Low Ambient Lockout

1b. Cooling Low Amb Lockout Setpt

2. Noise Setback Command

3. Ice Building

4. Ext Chilled/Hot Water Setpt

5. Ext Current Limit Setpoint

6 Chilled Water Reset

6a. Chilled Water Reset

6b. Return Reset Ratio

6c. Return Start Reset

6d. Return Maximum Reset

6e. Outdoor Reset Ratio

6f. Outdoor Start Reset

6g. Outdoor Maximum Reset

7. LCI-C Diag Language

8. LCI-C Diag Encoding


Default

(Enable, Disable), Enable

(Enable, Disable), Enable

XXX.X

(Auto, On, Schedule), Auto

(Enable, Disable), Disable



(Const Return, Outdoor,

Return, Disable), Disable

(Const Return, Outdoor,

Return, Disable), Disable

XXX

XXX.X

XXX.X

XXX

XXX.X

XXX.X

(English, Selection 2,

Selection 3) English (0)

(Text, Code) Text

Units

Enum

Temperature

Temperature

%RLA

Enum

Temperature

Enum

Temperature

Temperature

Enum minutes

Units

Enum

Enum

Temperature

Enum

Enum

Enum

Enum

Enum

Percent

Temperature

Temperature

Percent

Temperature

Temperature

Enum

Enum

Items 1 and 6 are top level. If user presses this line another screen opens to allow user to change relevant setpoints.

Items 7 and 8 are present if comm5 LCI-C option is installed.

23

24


System Manual Control Settings



Description

1. Evap Water Pump

1.a.Evap Water Pump

2. Cond Water Pump

2.a. Cond Water Pump

3. Head Pressure Control

3.a. Head Pressure Control

4. Staging/Stepping Control

4.a. Staging/Stepping Control

5. Capacity Modulation Control

5a. Capacity Modulation Control

6. Clear Energy Consumption

6.a. Clear Energy Consumption

Circuit Manual Control Settings

Description

1. Compressor Pumpdown

1.a. Compressor Pumpdown

2. Front Panel Ckt Lockout

2.a. Front Panel Ckt Lockout

3. Expansion Valve Control

3.a. Expansion Valve Control

Resolution or (Enumerations), Default

(Auto, On), Auto (6)

<Auto / On Buttons>

(Auto, On), Auto (6)

<Auto / On Buttons>

(Auto, Manual), Auto (7)

<Auto / Manual Buttons> (7)





1) Resettable Energy consumption totalization (kWh)

<Clear Button>

Resolution or (Enumerations), Default

(Continue, Not Available)

<Pumpdown / Abort Buttons> (8)

(Not Locked Out, Locked Out), Not Locked Out

<Not Locked Out / Locked Out Buttons>

(Auto, Manual)


Units

Enum

Enum

Enum

Monitor Value

1) Water Flow status

2) Override Time Remaining

1) Water Flow status

2) Override Time Remaining

1) Override status -

Auto/Manual

Enum


Enum


Enum

1) Resettable Energy consumption totalization (kWh)

Only if Energy Meter option is installed

Units

Enum

Enum

Enum

Dependency

Water Cooled only (i.e.

RTWD or RTUD with

ACFC=None)


Monitor Value

1) Override status:

NotAvailable / Continue / Starting / Pumpdown

2) Suction Pressure

RLC-SVU05A-E4

RLC-SVU05A-E4


1.1.1 Display Settings

Description

1.

Date Format

2. Date

3. Time Format

4. Time of Day

5. Keypad/Display Lockout

6. Display Units

7.

Pressure Units

8. Language (5)


Default

("mmm dd, yyy", "dd-mmm-yyyy"),

"mmm dd, yyy"

(4)

(12-hour, 24-hour), 12-hour

(4)

(Enable, Disable), Disable (3)

(SI, English), SI

(Absolute, Gauge), Gauge

(English, Selection 2, Selection 3),

English (1)

Units

Enum

Enum

Enum

Enum

Enum

Enum

(1) Language choices are dependent on what the Service Tool has setup in the Main Processor. Get Radio Button names from Main Processor setups. Language selections will include English and qty 2 alternate as loaded by

TechView.

(2) Temperatures will be adjustable to 0.1 deg F or C. The Main Processor will provide the minimum and maximum allowable value.

(3) Enables a DynaView Lockout screen. All other screens timeout in 30 minutes to this screen. The DynaView

Lockout Screen will have 0-9 keypad to permit the user to re-enter the other DynaView screens with a fixed password. See below for further details.

(4) The Date and Time setup screen formats deviate slightly from the standard screens defined above. See the alternate screen layouts below.

(5) Language shall always be the last setting listed on the Control Settings menu (which will also always be the last item listed on the Settings menu list). This will allow a user to easily find language selection if looking at an unrecognizable language.

(6) The pump on mode terminates after 60 minutes.

(7) These items cannot be set to "Manual" from the DynaView - The manual buttons on the Manual Control submode screen are hidden unless the particular item has been set to manual from the Service Tool - The auto button shall be operational to change the mode back to auto. The subscreen shall also display a note:

"Manual not available from Front Panel - See Service Tool for Manual Mode"

(8) Buttons are displayed on this Manual Control submode screens depending on the pumpdown status:, when in

"pumpdown", the abort button is shown, when "not available", no buttons shown, when "continue", pumpdown button is shown.

25

26


Auto, Stop/Immediate

Stop

The AUTO and STOP keys are radio buttons within the persistent key display area. The selected key will be black.

The chiller will stop when the STOP key is touched, entering the Run

Unload mode. An informational screen will be displayed for

5 seconds indicating that a second depression of an "Immediate Stop" key during this time period will result in an immediate/panic stop.

Pressing the "Immediate Stop" key while the panic stop screen is displayed, will cause the unit to stop immediately, skipping operational pumpdown.

Touching the Auto key will arm the chiller for active cooling if no diagnostic is present. A separate action must be taken to clear active diagnostics.

The AUTO and STOP keys take precedence over the ENTER and

CANCEL keys. While a setting is being changed, AUTO and STOP keys are recognized even if ENTER or CANCEL has not been pressed.

When an active diagnostic is present, an ALARMS key will be added to the persistent display area.

This key is used to alert the operator that a diagnostic exists, or to provide navigation to a diagnostic display screen.

Figure 11

Auto

Stop

Alarms

RLC-SVU05A-E4

RLC-SVU05A-E4


Diagnostics Screen

The diagnostic screen is accessible by depressing the Alarms enunciator. A verbal description will be provided. A scrollable list of the last (up to 10) active diagnostics will be presented.

Performing a Reset All Active

Diagnostics will reset all active diagnostics regardless of type, machine or refrigerant circuit.

Compressor diagnostics, which hold off only one compressor, will be treated as circuit diagnostics, consistent with the circuit to which they belong.

The scrollable list will be sorted by time of occurrence. If a diagnostic of severity = warning is present, the

"Alarms" key will be present but not flashing. If a diagnostic of severity = shutdown (normal or immediate) is present, the "Alarm" key will display that is flashing. If no diagnostics exist, the "Alarm" key will not be present.

The "Operating Mode At Last

Diagnostic" text above the most recent diagnostic will display a subscreen listing the operating mode and submodes at the time of the last diagnostic.

Figure 12 - Diagnostics screen

Rfgt Setpoint Diagnostic

Reset Diags

Operating Mode At Last Diagnostic:

[01] 10:56 PM Nov 26, 2001

Low Chilled Water Temp: Unit Off

[02] 10:55 PM Nov 26, 2001

Low Evaporator Temp: Unit Off

Auto

Stop

Alarms

27

28

Diagnostics

The following diagnostic table contains all the diagnostics possible. Not all data is available unless tech view is connected.

Code:

Three digit hexadecimal code used on all past products to uniquely identify diagnostics.

Diagnostic Name:

Name of

Diagnostic and its source. Note that this is the exact text used in the

User Interface and/or Service Tool displays.

Severity:

Defines the severity of the above effect. Immediate means immediate shutdown of the effected portion, Normal means normal or friendly shutdown of the effected portion, Special Mode means a special mode of operation (limp along) is invoked, but without shutdown, and Info means an

Informational Note or Warning is generated.

Persistence:

Defines whether or not the diagnostic and its effects are to be manually reset (Latched), or can be either manually or automatically reset (Nonlatched).

Criteria:

Quantitatively defines the criteria used in generating the diagnostic and, if nonlatching, the criteria for auto reset. If more explanation is necessary a hot link to the Functional Specification is used.

Reset Level:

Defines the lowest level of manual diagnostic reset command which can clear the diagnostic. The manual diagnostic reset levels in order of priority are:

Local and Remote. A diagnostic that has a reset level of Local, can only be reset by a local diagnostic reset command, but not by the lower priority remote Reset command whereas a diagnostic listed as

Remote reset can be reset by either.

Affects Target itemized with an * asterisk: applied to many comm loss and starter module derived diagnostic targets, listed as circuit targeted diagnostics, but should be understood as "cprsr" targeted diagnostics.

RLC-SVU05A-E4

Diagnostics

Table 4 - Main Processor Diagnostics

Diagnostic Name and Source

Starter Did Not

Transition -

Compressor 1A

Starter Did Not

Transition -

Compressor 2A

Phase Reversal -

Compressor 1A

Phase Reversal -

Compressor 2A

Starter 1A Dry Run

Test

Starter 2A Dry Run

Test

Phase Loss -

Compressor 1A

Affects

Target

*Circuit

*Circuit

*Circuit

*Circuit

*Circuit

*Circuit

*Circuit

Severity

Immediate

Immediate

Immediate

Immediate

Immediate

Immediate

Immediate

Persistence

Latch

Latch

Latch

Latch

Active Modes

[Inactive Modes]

On the first check after transition.

On the first check after transition.

Criteria

The Starter Module did not receive a transition complete signal in the designated time from its command to transition. The must hold time from the Starter Module transition command is 1 second. The Must trip time from the transition command is 6 seconds. Actual design is 2.5 seconds. This diagnostic is active only for

Y-Delta, Auto-Transformer, Primary Reactor, and X-Line

Starters.

The Starter Module did not receive a transition complete signal in the designated time from its command to transition. The must hold time from the Starter Module transition command is 1 second. The Must trip time from the transition command is 6 seconds. Actual design is 2.5 seconds. This diagnostic is active only for

Y-Delta, Auto-Transformer, Primary Reactor, and X-Line

Starters.

Compressor energized to transition command

[All Other Times]

A phase reversal was detected on the incoming current.

On a compressor startup the phase reversal logic must detect and trip in a maximum of .3 second from compressor start.

Reset Level

Local

Local

Local

Compressor energized to transition command

[All Other Times]

A phase reversal was detected on the incoming current.

On a compressor startup the phase reversal logic must detect and trip in a maximum of .3 second from compressor start.

Local

Latch

Latch

Latch

Starter Dry Run Mode While in the Starter Dry Run Mode either 50 % Line

Voltage was sensed at the Potential Transformers or 10

% RLA Current was sensed at the Current Transformers.

Starter Dry Run Mode While in the Starter Dry Run Mode either 50 % Line

Voltage was sensed at the Potential Transformers or 10

% RLA Current was sensed at the Current Transformers.

Start Sequence and

Run modes a) No current was sensed on one or two of the current transformer inputs while running or starting (See

Nonlatching Power Loss Diagnostic for all three phases lost while running). Must hold = 20% RLA. Must trip =

5% RLA. Time to trip shall be longer than guaranteed reset on Starter Module at a minimum, 3 seconds maximum. Actual design trippoint is 10%. The actual design trip time is 2.64 seconds. b) If Phase reversal protection is enabled and current is not sensed on one or more current xformer inputs. Logic will detect and trip in a maximum of 0.3 seconds from compressor start.

Local

Local

Local

RLC-SVU05A-E4 29

30

Diagnostics


Phase Loss -

Compressor 2A

Power Loss -

Compressor 1A

Power Loss -

Compressor 2A

Severe Current

Imbalance -

Compressor 1A

Affects

Target

*Circuit

Severity

Immediate

Persistence

Active Modes


Start Sequence and

Run modes

*Circuit

*Circuit

*Circuit

Immediate

Immediate

Immediate

Latch

NonLatch

NonLatch

Latch

All compressor running modes

[all compressor starting and nonrunning modes]

All compressor running modes

[all compressor starting and nonrunning modes]

All Running Modes

Criteria

a) No current was sensed on one or two of the current transformer inputs while running or starting (See

Nonlatching Power Loss Diagnostic for all three phases lost while running). Must hold = 20% RLA. Must trip =

5% RLA. Time to trip shall be longer than guaranteed reset on Starter Module at a minimum, 3 seconds maximum. Actual design trippoint is 10%. The actual design trip time is 2.64 seconds. b) If Phase reversal protection is enabled and current is not sensed on one or more current xformer inputs. Logic will detect and trip in a maximum of 0.3 second from compressor start

The compressor had previously established currents while running and then all three phases of current were lost. Design: Less than 10% RLA, trip in 2.64 seconds.

This diagnostic will preclude the Phase Loss Diagnostic and the Transition Complete Input Opened Diagnostic from being called out. To prevent this diagnostic from occurring with the intended disconnect of main power, the minimum time to trip must be greater than the guaranteed reset time of the Starter module. Note: This diagnostic prevents nuisance latching diagnostics due to a momentary power loss - It does not protect motor/compressor from uncontrolled power reapplication. See Momentary Power Loss Diagnostic for this protection. This diagnostic is not active during the start mode before the transition complete input is proven. Thus a random power loss during a start would result in either a "Starter Fault Type 3" or a "Starter Did

Not Transition" latching diagnostic.

The compressor had previously established currents while running and then all three phases of current were lost. Design: Less than 10% RLA, trip in 2.64 seconds.

This diagnostic will preclude the Phase Loss Diagnostic and the Transition Complete Input Opened Diagnostic from being called out. To prevent this diagnostic from occurring with the intended disconnect of main power, the minimum time to trip must be greater than the guaranteed reset time of the Starter module.

A 30% Current Imbalance has been detected on one phase relative to the average of all 3 phases for 90 continuous seconds.

Reset Level

Local

Remote

Remote

Local

Severe Current

Imbalance -

Compressor 2A

Starter Fault Type I -

Compressor 1A

*Circuit

*Circuit

Immediate

Immediate

Latch

Latch

All Running Modes

Starting - Y Delta

Starters Only

A 30% Current Imbalance has been detected on one phase relative to the average of all 3 phases for 90 continuous seconds

This is a specific starter test where 1M(1K1) is closed first and a check is made to ensure that there are no currents detected by the CT's. If currents are detected when only 1M is closed first at start, then one of the other contactors is shorted.

Local

Local

RLC-SVU05A-E4

Diagnostics


Starter Fault Type I -

Compressor 2A

Affects

Target

*Circuit

Starter Fault Type II -

Compressor 1A

*Circuit

Starter Fault Type II -

Compressor 2A

*Circuit

Starter Fault Type III

- Compressor 1A

Starter Fault Type III

- Compressor 2A

Compressor Did Not

Accelerate:

Transition -

Compressor 1A

*Circuit

Compressor Did Not

Accelerate:

Transition -

Compressor 2A

*Circuit

Transition Complete

Input Shorted -

Compressor 1A


Input Shorted -

Compressor 2A

*Circuit

*Circuit

*Circuit

*Circuit

Severity

Immediate

Immediate

Immediate

Immediate

Immediate

Info

Info

Immediate

Immediate

Persistence

Latch

Latch

Latch

Latch

Latch

Latch

Latch

Latch

Latch

Active Modes


Starting - Y Delta

Starters Only

Starting All types of starters

Starting - All types of starters

Starting

[Adaptive Frequency

Starter Type]

Starting

[Adaptive Frequency

Starter Type]

Start Mode

Start Mode

Pre-Start

Pre-Start

Criteria

This is a specific starter test where 1M(1K1) is closed first and a check is made to ensure that there are no currents detected by the CT's. If currents are detected when only 1M is closed first at start, then one of the other contactors is shorted.

a. This is a specific starter test where the Shorting

Contactor (1K3) is individually energized and a check is made to ensure that there are no currents detected by the CT's. If current is detected when only S is energized at Start, then 1M is shorted. b. This test in a.

above applies to all forms of starters (Note: It is understood that many starters do not connect to the

Shorting Contactor.).

a. This is a specific starter test where the Shorting

Contactor (1K3) is individually energized and a check is made to ensure that there are no currents detected by the CT's. If current is detected when only S is energized at Start, then 1M is shorted. b. This test in a.

above applies to all forms of starters (Note: It is understood that many starters do not connect to the

Shorting Contactor.).

As part of the normal start sequence to apply power to the compressor, the Shorting Contactor (1K3) and then the Main Contactor (1K1) were energized. 1.6 seconds later there were no currents detected by the CT's for the last 1.2 Seconds on all three phases. The test above applies to all forms of starters except Adaptive

Frequency Drives.

As part of the normal start sequence to apply power to the compressor, the Shorting Contactor (1K3) and then the Main Contactor (1K1) were energized. 1.6 seconds later there were no currents detected by the CT's for the last 1.2 seconds on all three phases. The test above applies to all forms of starters except Adaptive

Frequency Drives.

The compressor did not come up to speed (fall to

<85%RLA) in the allotted time defined by the Maximum

Acceleration Timer and a transition was forced (motor put across the line) at that time. This applies to all starter types.

The compressor did not come up to speed (fall to

<85%RLA) in the allotted time defined by the Maximum

Acceleration Timer and a transition was forced (motor put across the line) at that time. This applies to all starter types.

The Transition Complete input was found to be shorted before the compressor was started. This is active for all electromechanical starters.

The Transition Complete input was found to be shorted before the compressor was started. This is active for all electromechanical starters.

Reset Level

Local

Local

Local

Local

Local

Remote

Remote

Local

Local

RLC-SVU05A-E4 31

32

Diagnostics



Input Opened -

Compressor 1A

Affects

Target

*Circuit


Input Opened -

Compressor 2A

*Circuit

Motor Current

Overload -

Compressor 1A

Motor Current

Overload -

Compressor 2A

Starter Contactor

Interrupt Failure -

Compressor 1A

Starter Contactor

Interrupt Failure -

Compressor 2A

Over Voltage

Under Voltage

Circuit

Circuit

Chiller

Chiller

Chiller

Chiller

Severity

Immediate

Immediate

Immediate

Immediate

Special

Action

Special

Action

Normal

Normal

Persistence

Active Modes


All running modes

Latch

Latch

Latch

Latch

Latch

Latch

Criteria

All running modes

Cprsr Energized

Cprsr Energized

The Transition Complete input was found to be opened with the compressor motor running after a successful completion of transition. This is active only for Y-Delta,

Auto-Transformer, Primary Reactor, and X-Line Starters.

To prevent this diagnostic from occurring as the result of a power loss to the contactors, the minimum time to trip must be greater than the trip time for the power loss diagnostic.

The Transition Complete input was found to be opened with the compressor motor running after a successful completion of transition. This is active only for Y-Delta,

Auto-Transformer, Primary Reactor, and X-Line Starters.

To prevent this diagnostic from occurring as the result of a power loss to the contactors, the minimum time to trip must be greater than the trip time for the power loss diagnostic.

Compressor current exceeded overload time vs. trip characteristic. Must trip = 140% RLA, Must hold=125%, nominal trip 132.5% in 30 seconds

Compressor current exceeded overload time vs. trip characteristic. Must trip = 140% RLA, Must hold=125%, nominal trip 132.5% in 30 seconds

Starter Contactor not

Energized [Starter

Contactor Energized]

Detected compressor currents greater than 10% RLA on any or all phases when the compressor was commanded off. Detection time shall be 5 second minimum and 10 seconds maximum. On detection and until the controller is manually reset: generate diagnostic, energize the appropriate alarm relay, continue to energize the Evap Pump Output, continue to command the affected compressor off, fully unload the effected compressor and command a normal stop to all other compressors. For as long as current continues, perform liquid level, oil return, and fan control on the circuit effected.

Starter Contactor not

Energized [Starter

Contactor Energized]

Detected compressor currents greater than 10% RLA on any or all phases when the compressor was commanded off. Detection time shall be 5 second minimum and 10 seconds maximum. On detection and until the controller is manually reset: generate diagnostic, energize the appropriate alarm relay, continue to energize the Evap Pump Output, continue to command the affected compressor off, fully unload the effected compressor and command a normal stop to all other compressors. For as long as current continues, perform liquid level, oir return, and fan control on the circuit effected.

Reset Level

Local

Local

Local

Local

Local

Local

NonLatch

Pre-Start and Any

Ckt(s) Energzd

Nom. trip: 60 seconds at greater than 112.5%, + 2.5%,

Auto Reset at 110% or less for 10 cont secs.

Remote

NonLatch

Pre-Start and Any

Ckt(s) Energzd

Nom. trip: 60 seconds at less than 87.5%, + 2.8% at

200V 1.8% at 575V, Auto Reset at 90% or greater for

10 cont secs.

Remote

RLC-SVU05A-E4

Main Processor Diagnostics

Diagnostic Name

MP: Reset Has

Occurred

Unexpected Starter

Shutdown

Circuit

High Motor Winding

Temperature -

Compressor 1A

High Motor Winding

Temperature -

Compressor 2A

Low Evaporator

Refrigerant

Temperature -

Circuit 1

Circuit

Circuit

Circuit

Low Evaporator

Refrigerant

Temperature -

Circuit 2

Affects

Target

None

Circuit

Severity

Info

Normal

Immediate

Persistence

Active Modes


All

NonLatch

NonLatch

Latch

Criteria

The main processor has successfully come out of a reset and built its application. A reset may have been due to a power up, installing new software or configuration. This diagnostic is immediately and automatically cleared and thus can only be seen in the

Historic Diagnostic List in TechView

All Cprsr Running modes, Starting,

Running and Preparing to Shutdown

The Starter module status reported back that it is stopped when the MP thinks it should be running and no Starter diagnostic exist. This diagnostic will be logged in the active buffer and then automatically cleared. This diagnostic could be caused by intermittent communication problems from the Starter to the MP, or due to misbinding.

All The respective compressor's motor winding thermostat is detected to be open

Reset Level

Remote

NA

Local

Immediate

Latch

All The respective compressor's motor winding thermostat is detected to be open

Local

Immediate

Immediate

Latch

Latch

All Ckt Running

Modes

All Ckt Running

Modes

The inferred Saturated Evap Refrigerant Temperature

(calculated from suction pressure transducer dropped below the Low Refrigerant Temperature Cutout Setpoint for 1125°F-sec (25°F-sec max rate) while the circuit was running. The minimum LRTC setpoint is -5°F (18.7 Psia) the point at which oil separates from the refrigerant.

During the time that the trip integral is non zero, the unload solenoid(s) of the running compressors on the circuit, shall be energized continuously and the load solenoid shall be off. Normal load/unload operation will be resumed if the trip integral decays to zero by temps above the cutout setpoint. The integral is held nonvolatily though power down, is continuously calculated, and can decay during the circuit's off cycle as conditions warrant.

Remote

The inferred Saturated Evap Refrigerant Temperature

(calculated from suction pressure transducer dropped below the Low Refrigerant Temperature Cutout Setpoint for 1125°F-sec (25°F-sec max rate) while the circuit was running. The minimum LRTC setpoint is -5°F (18.7 Psia) the point at which oil separates from the refrigerant.

During the time that the trip integral is non zero, the unload solenoid(s) of the running compressors on the circuit, shall be energized continuously and the load solenoid shall be off. Normal load/unload operation will be resumed if the trip integral decays to zero by temps above the cutout setpoint. The integral is held nonvolatily though power down, is continuously calculated, and can decay during the circuit's off cycle as conditions warrant.

Remote

RLC-SVU05A-E4 33

34


Diagnostic Name

Low Oil Flow -

Compressor 1A

Low Oil Flow -

Compressor 2A

Loss of Oil -

Compressor 1A

(Running)

Loss of Oil -

Compressor 2A

(Running)

Loss of Oil -

Compressor 1A

(Stopped)

Loss of Oil -

Compressor 2A

(Stopped)

No Differential

Refrigerant

Pressure - Circuit 1

No Differential

Refrigerant


Low Differential

Refrigerant


Low Differential

Refrigerant


High Differential

Refrigerant


Affects

Target

Circuit

Circuit

Circuit

Circuit

Circuit

Circuit

Circuit

Circuit

Circuit

Circuit

Circuit

Severity

Immediate

Immediate

Immediate

Immediate

Immediate and Special

Action


Action

Immediate

Immediate

Immediate

Immediate

Normal

Persistence

Latch

Active Modes


Cprsr Energized and

Delta P above 15 Psid

Criteria

The intermediate oil pressure transducer for this compressor was out of the acceptable pressure range for 15 seconds, while the Delta Pressure was greater than 15 Psid (172.4 kPa).: Acceptable range is 0.50 >

(PC-PI) / (PC-PE) for the first 2.5 minutes of operation, and 0.28 > (PC-PI) / (PC-PE) thereafter.

Latch

Latch

Latch

Latch

Latch

Latch

Cprsr Energized and

Delta P above 15 Psid

The intermediate oil pressure transducer for this compressor was out of the acceptable pressure range for 15 seconds, while the Delta Pressure was greater than 15 Psid (172.4 kPa).: Acceptable range is 0.50 >

(PC-PI) / (PC-PE) for the first 2.5 minutes of operation, and 0.28 > (PC-PI) / (PC-PE) thereafter.

Starter Contactor

Energized

Starter Contactor

Energized

In running modes , Oil Loss Level Sensor detects lack of oil in the oil sump feeding the compressor

(distinguishing a liquid flow from a vapor flow)

In running modes , Oil Loss Level Sensor detects lack of oil in the oil sump feeding the compressor

(distinguishing a liquid flow from a vapor flow)

Compressor Pre-start

[all other modes]

Compressor Pre-start

[all other modes]

Compressor running on Circuit

Oil Loss Level Sensor detects a lack of oil in the oil sump feeding the compressor for 90 seconds just prior to attempted compressor start. Note: Compressor start is delayed while waiting for oil to be detected, and compressor start is not allowed.

Oil Loss Level Sensor detects a lack of oil in the oil sump feeding the compressor for 90 seconds just prior to attempted compressor start. Note: Compressor start is delayed while waiting for oil to be detected, and compressor start is not allowed.

The system differential pressure was below 7.7 Psid (53 kPa) for 6 seconds after the 11 seconds ignore time relative to cprsr/circuit startup had expired.

Reset Level

Local

Local

Local

Local

Local

Local

Remote

Latch

Latch

Latch

Latch

Compressor running on Circuit

Cprsr Energized

Cprsr Energized

Cprsr Energized

The system differential pressure was below 7.7 Psid (53 kPa) for 6 seconds after the 11 seconds ignore time relative to cprsr/circuit startup had expired.

The system differential pressure for the respective circuit was below 25 Psid (240.5 kPa) while its compressor was unstepped or pressure ratio was below

1.75 if stepped - for a varying period of time - refer to specification for trip time as a function of system DP below the requirement

The system differential pressure for the respective circuit was below 25 Psid (240.5 kPa) while its compressor was unstepped or pressure ratio was below

1.75 if stepped - for a varying period of time - refer to specification for trip time as a function of system DP below the requirement

High Vi Cprsr:

The differential pressure for the respective circuit was above 275 Psid (1890 kPa) for 2 consecutive samples or more than 10 seconds.

Low Vi Cprsr:

The system differential pressure was above 188 Psid (1296.4 kPa) - for 2 consecutive samples or more than 10 seconds.

Remote

Remote

Remote

Remote

RLC-SVU05A-E4


Diagnostic Name

High Differential

Refrigerant


High Refrigerant

Pressure Ratio -

Circuit 1

High Refrigerant

Pressure Ratio -

Circuit 2

High Discharge

Temperature -

Compressor 1A

High Discharge

Temperature -

Compressor 2A

Low Discharge

Superheat -

Circuit 1

Affects

Target

Circuit

Circuit

Circuit

Circuit

Circuit

Circuit

Circuit

Severity

Normal

Immediate

Immediate

Immediate

Immediate

Normal

Normal

Persistence

Active Modes


Cprsr Energized

Latch

Latch

Latch

Latch

Latch

Criteria

Service Pumpdown

Only

Service Pumpdown

Only

High Vi Cprsr: The differential pressure for the respective circuit was above 275 Psid (1890 kPa) for 2 consecutive samples or more than 10 seconds.

Low Vi Cprsr: The system differential pressure was above 188 Psid (1296.4 kPa) - for 2 consecutive samples or more than 10 seconds.

The pressure ratio for the respective circuit exceeded

5.61 for 1 contiguous minute while in service pumpdown. This pressure ratio is a fundamental limitation of the compressor. The pressure ratio is defined as Pcond (abs)/Pevap(abs).

The pressure ratio for the respective circuit exceeded

5.61 for 1 contiguous minute while in service pumpdown. This pressure ratio is a fundamental limitation of the compressor. The pressure ratio is defined as Pcond (abs)/Pevap(abs).

All

[compressor run unload or compressor not running]

All

[compressor run unload or compressor not running]

The compressor discharge temperature exceeded 200°F

(without oil cooler) or 230ºF (with oil cooler). This diagnostic will be suppressed during Run-Unload or after the compressor has stopped. Note: As part of the

Compressor High Temperature Limit Mode (aka

Minimum Capacity Limit), the compressor shall be forced loaded as the filtered discharge temperature reaches 190ºF(without oil coolers), or 220ºF (with oil coolers).

The compressor discharge temperature exceeded 200°F

(without oil cooler) or 230ºF (with oil cooler). This diagnostic will be suppressed during Run-Unload or after the compressor has stopped. Note: As part of the

Compressor High Temperature Limit Mode (aka

Minimum Capacity Limit), the compressor shall be forced loaded as the filtered discharge temperature reaches 190ºF(without oil coolers), or 220ºF (with oil coolers).

Reset Level

Remote

Remote

Remote

Remote

Remote

Latch

Latch

Any Running Mode

Any Running Mode

While Running Normally, the Discharge Superheat was less than 12 degrees F +- 1F for more than 6500 degree

F seconds.. At circuit startup the Discharge Superheat will be ignored for 5 minutes.

While Running Normally, the Discharge Superheat was less than 12 degrees F +- 1F for more than 6500 degree

F seconds.. At circuit startup the Discharge Superheat will be ignored for 5 minutes.

Remote

Remote

Low Discharge

Superheat -

Circuit 2

Discharge

Temperature

Sensor -

Compressor 1A

Discharge

Temperature

Sensor -

Compressor 2A

Evaporator Liquid

Level Sensor -

Circuit 1

Evaporator Liquid

Level Sensor -

Circuit 2

Circuit

Circuit

Circuit

Circuit

Immediate

Immediate

Normal

Normal

Latch

Latch

Latch

Latch

All

All

All

All

Bad Sensor or LLID

Bad Sensor or LLID

Bad Sensor or LLID

Bad Sensor or LLID

Remote

Remote

Remote

Remote

RLC-SVU05A-E4 35

36


Diagnostic Name

Fan Inverter Fault -

Circuit 1

Fan Inverter Fault -

Circuit 2

BAS Failed to

Establish

Communication

BAS

Communication

Lost

Low Evaporator

Liquid Level -

Circuit 1

Low Evaporator

Liquid Level -

Circuit 2

Affects

Target

Severity Persistence

Active Modes


Circuit (fan control)

Special Mode

(or in single fan deck:

Circuit

Immediate shutdown

NonLatch (or in single fan deck:Latch)

Prestart and Running w/ Low Ambient

Variable Spd Fan configured

Circuit (fan control)

Special Mode

(or in single fan deck:

Circuit

Immediate shutdown

NonLatch (or in single fan deck:Latch)

Prestart and Running w/ Low Ambient

Variable Spd Fan configured

None Special

Action

NonLatch

At power-up

Criteria

A fault signal has been detected from the respective condenser's Variable Speed Inverter Drive (fan).

Condenser Fan control will revert to constant speed operation without the use of the inverter's fan. If the inverter's fault clears, fan control will switch back to variable speed. For single fan deck configurations, this diagnostic causes a latching circuit shutdown

A fault signal has been detected from the respective condenser's Variable Speed Inverter Drive (fan).

Condenser Fan control will revert to constant speed operation without the use of the inverter's fan. If the inverter's fault clears, fan control will switch back to variable speed. For single fan deck configurations, this diagnostic causes a latching circuit shutdown

The BAS was setup as "installed" and the BAS did not communicate with the Lontalk LCIC within 15 minutes after chiller controls power-up. Refer to Section on

Setpoint Arbitration to determine how setpoints and operating modes may be effected. Note that this diagnostic is never operational for BacNet

Communication interface (BCIC) and only operational with a LonTalk Communication interface (LCIC) if so configured by the BAS or Tracer system.

None

None

None

Special

Action

Info

Info

NonLatch

NonLatch

NonLatch

All

Starter Contactor

Energized [all Stop modes]

Starter Contactor


The BAS was setup as "installed" at the MP and the

Lontalk LCIC lost communications with the BAS for 15 contiguous minutes after it had been established. Refer to Section on Setpoint Arbitration to determine how setpoints and operating modes may be effected by the comm loss. The chiller follows the value of the Tracer

Default Run Command which can be previously written by Tracer and stored nonvolatilely by the MP (either use local or shutdown). Note that this diagnostic is never operational for BacNet Communication interface (BCIC) and only operational with a LonTalk Communication interface (LCIC) if so configured by the BAS or Tracer system.

The liquid level sensor is seen to be at or near its low end of range for 80 contiguous minutes while the compressor is running and the EXV has not been in low differential pressure control during that time. Design: approx 20% or less of bit count corresponding to -40 mm or less liquid level for 80 minutes - the minute counter is reset if EXV is in Low DP control for 5 iterations (10 sec) implemented as an integral.

The liquid level sensor is seen to be at or near its low end of range for 80 contiguous minutes while the compressor is running and the EXV has not been in low differential pressure control during that time. Design: approx 20% or less of bit count corresponding to -40 mm or less liquid level for 80 minutes - the minute counter is reset if EXV is in Low DP control for5 iterations (10 sec) implemented as an integral .

Reset Level

Remote

Remote

Remote

Remote

RLC-SVU05A-E4


Diagnostic Name

High Evaporator

Liquid Level - Circuit

1 (early Phase 1

RTWD production only - eliminated in

2nd Phase 1 release in Sept 08)

High Evaporator

Liquid Level - Circuit

2 (early Phase 1

RTWD production only - eliminated in

2nd Phase 1 release in Sept 08)

External Chilled/Hot

Water Setpoint

Affects

Target

Circuit

Circuit

None

External Current

Limit Setpoint

Evaporator Water

Flow (Entering

Water Temp)

None

None

Evaporator

Entering Water

Temperature

Sensor

Evaporator

Leaving Water

Temperature

Sensor

Condenser

Entering Water

Temperature

Sensor

Condenser

Leaving Water

Temperature

Sensor

Condenser

Refrigerant

Pressure

Transducer -

Circuit 1

Condenser

Refrigerant

Pressure

Transducer -

Circuit 2

Suction

Refrigerant

Pressure

Transducer -

Circuit 1

RLC-SVU05A-E4

Chiller

Chiller

Chiller

Chiller

Info and

Special

Action

Info and

Special

Action

Circuit Immediate

Circuit Immediate

Circuit Immediate

Severity

Normal

Normal

Info

Info

Info

Normal

Normal

Persistence

Latch

Latch

Latch

Latch

Latch

Latch

Active Modes


Starter Contactor


Starter Contactor


Criteria

The liquid level sensor is seen to be at or near its high end of range for 80 contiguous minutes while the compressor is running. (The diagnostic timer will hold, but not clear when the circuit is off). Design: approx

80% or more of bit count corresponding to +30 mm or more liquid level for 80 minutes).

The liquid level sensor is seen to be at or near its high end of range for 80 contiguous minutes while the compressor is running. (The diagnostic timer will hold, but not clear when the circuit is off). Design: approx

80% or more of bit count corresponding to +30 mm or more liquid level for 80 minutes).

Reset Level

Remote

Remote

All

All

Any Ckt(s) Energzd

[No Ckt(s) Energzd]

All a. Function Not "Enabled": no diagnostics. b. "Enabled ":

Out-Of-Range Low or Hi or bad LLID, set diagnostic, default CWS to next level of priority (e.g. Front Panel

SetPoint). This Info diagnostic will automatically reset if the input returns to the normal range.

a. Not "Enabled": no diagnostics. b. "Enabled ": Out-Of-

Range Low or Hi or bad LLID, set diagnostic, default

CLS to next level of priority (e.g. Front Panel SetPoint.

This Info diagnostic will automatically reset if the input returns to the normal range.

The entering evaporator water temp fell below the leaving evaporator water temp by more than 2°F for

100°F-sec. For falling film evaporators, this diagnostic cannot reliably indicate loss of flow, but can warn of improper flow direction through the evaporator, misbound water temperature sensors, improper sensor installation, partially failed sensors, or other system problems. Note that either entering or leaving water temp sensor could be at fault.

Bad Sensor or LLID. Note: Entering Water Temp Sensor is used in EXV pressure control as well as ice making so it must cause a unit shutdown even if ice or CHW reset is not installed.

Remote

Remote

Remote

Remote

Latch All Bad Sensor or LLID Remote

Latch All

Latch All

Latch All

Latch All

Latch All

RTWD only: Bad Sensor or LLID. If chiller running, and condenser water regulating valve option installed, force valve to 100% flow.

RTWD only: Bad Sensor or LLID. If Chiller is running in the heat mode of operation - normal chiller shutdown, otherwise, informational warning only.

Discontinue Min Capacity Limit forced cprsr loading due to Low DP in subsequent startups.

Remote

Remote

Bad Sensor or LLID

Bad Sensor or LLID

Bad Sensor or LLID

Remote

Remote

Remote

37

38


Diagnostic Name

Suction Refrigerant

Pressure Transducer

- Circuit 2

Evaporator

Approach Error -

Circuit 1

Affects

Target

Circuit

Circuit

Evaporator

Approach Error -

Circuit 2

Oil Pressure

Transducer -

Compressor 1A

Oil Pressure

Transducer -

Compressor 2A

Oil Pressure

System Fault -

Circuit 1

Oil Pressure

System Fault -

Circuit 2

Low Evaporator

Refrigerant


Circuit

Circuit

Circuit

Circuit

Circuit

Circuit

Severity

Immediate

Persistence

Active Modes


All

Latch

Immediate Respective circuit running

Immediate

Immediate

Immediate

Immediate

Immediate

Immediate

Latch

Latch

Respective circuit running

All

Bad Sensor or LLID

Criteria Reset Level

Remote

The Evaporator approach temperature for the respective circuit (ELWT - Evap Sat Temp Ckt x) is negative by

10ºF or more, for 1 minute continuously while the circuit

/ compressor is operating. Either the Evap Leaving

Water Temp sensor, or Evap Suction Rfgt Pressure

Transducer Ckt 1 is in error.

The Evaporator approach temperature for the respective circuit (ELWT - Evap Sat Temp Ckt x) is negative by

10ºF or more, for 1 minute continuously while the circuit

/ compressor is operating. Either the Evap Leaving

Water Temp sensor, or Evap Suction Rfgt Pressure

Transducer Ckt 2 is in error

Bad Sensor or LLID

Remote

Remote

Remote

Latch

All Bad Sensor or LLID Remote

Latch

Latch

Latch

Latch

Starter Contactor


Starter Contactor


Cprsr Prestart and

Cprsr Energized

The Intermediate Oil Pressure Transducer for this cprsr is reading a pressure either above its respective circuit's Condenser Pressure by 15 Psia or more, or below its respective Suction Pressure 10 Psia or more for 30 seconds continuously.

The Intermediate Oil Pressure Transducer for this cprsr is reading a pressure either above its respective circuit's Condenser Pressure by 15 Psia or more, or below its respective Suction Pressure 10 Psia or more for 30 seconds continuously.

a. The Evap Refrig Pressure dropped below 10 Psia just prior to compressor start (after EXV preposition). b. For

RTUD A/C during early startup period: The Evap Refrig

Pressure fell below the Condenser Pressure ÷ 8, limited to between 2 and 10 psia. c. For RTWD (or

RTUD, ACFC=none) during early startup period: The

Evap Refrig Pressure fell below 10 Psia. d. For all chiller types, after early Startup Period expires: The Evap Refrig

Pressure fell below 16 Psia.

(Note: the Startup Period for RTWD is 3 min ; for RTUD it is between 1 and 5 min for as an inverse function of the Cond Temp measured at time of circuit startup).

Local

Local

Local

CG-SVU02C-E4


Diagnostic Name

Low Evaporator

Refrigerant Pressure

- Circuit 2

Very Low

Evaporator


- Circuit 1

Very Low

Evaporator


- Circuit 2

Affects

Target

Circuit

Chiller

Chiller

Low Evaporator

Leaving Water Temp:

Unit Off

Evap (and circ) Pump

Severity

Immediate

Immediate

Immediate

Special

Action

Persistence

Latch

Latch

Active Modes


Cprsr Prestart and

Cprsr Energized

Criteria

a. The Evap Refrig Pressure dropped below 10 Psia just prior to compressor start (after EXV preposition). b. For

RTUD A/C during early startup period: The Evap Refrig

Pressure fell below the Condenser Pressure ÷ 8, limited to between 2 and 10 psia. c. For RTWD (or

RTUD, ACFC=none) during early startup period: The

Evap Refrig Pressure fell below 10 Psia. d. For all chiller types, after early Startup Period expires: The Evap Refrig

Pressure fell below 16 Psia.

(Note: the Startup Period for RTWD is 3 min; for RTUD it is between 1 and 5 min for as an inverse function of the

Cond Temp measured at time of circuit startup).

All

[compressor or circuit in manual lockout]

The respective circuit's evaporator pressure dropped below 80% of the current Low Evap Refrig Press Cutout setting (see above) or 8 psia, whichever is less, regardless of the running state of the circuit's compressor. If a given compressor or circuit is locked out, the suction pressure transducer(s) associated with it, will be excluded from causing this diagnostic.

Reset Level

Local

Local

Latch

All

[compressor or circuit in manual lockout]

The respective circuit's evaporator pressure dropped below 80% of the current Low Evap Refrig Press Cutout setting (see above) or 8 psia, whichever is less, regardless of the running state of the circuit's compressor. If a given compressor or circuit is locked out, the suction pressure transducer(s) associated with it, will be excluded from causing this diagnostic.

Local

NonLatch

Unit in Stop Mode, or in Auto Mode and No

Ckt(s) Energzd [Any

Ckt Energzd]

The leaving Evaporator water temp. fell below the leaving water temp cutout setting for 30 degree F seconds while the Chiller is in the Stop mode, or in Auto mode with no compressors running. Energize small

Evap Circulating Pump (RTUD A/C) and Evap Water pump Relay (but only if "Evap Water Pump Diagnostic

Override" setting is enabled) until diagnostic auto resets, then de-energize the circ pump and return to normal evap pump control. Automatic reset occurs when the temp rises 2°F (1.1°C) above the cutout setting for 30 minutes. This diagnostic even while active, does not prevent operation of either circuit

Remote

CG-SVU02C-E4 39

40


Diagnostic Name

Low Evaporator

Temp - Ckt 1: Unit

Off

Low Evaporator

Temp - Ckt 2: Unit

Off

Low Evaporator

Water Temp: Unit On


Flow Overdue


Flow Lost

Affects

Target



Chiller

Chiller

Chiller

Severity

Special

Action

Special

Action


Action

Normal

Immediate

Persistence

Active Modes



Ckt's Energzd [Any

Ckt Energzd]

NonLatch

Criteria

The respective evap sat temp fell below the water temp cutout setting while the evap liquid level was greater than -36 mm for 150º-sec degree F seconds while

Chiller is in the Stop mode, or in Auto mode with no compressors running. Energize small Evap Circulating

Pump (RTUD A/C) and Evap Water pump Relay (but only if "Evap Water Pump Diagnostic Override" setting is enabled) until diagnostic auto resets, then de-energize the circ pump and return to normal evap pump control.

Automatic reset occurs when the derived evap sat temp rises 2°F (1.1°C) above the cutout setting for 1 minute or the liquid level is below -36.0 mm for 20 minutes, or any compressor restarts. OA temp is substituted for evap sat temp in case of invalidity. This diagnostic even while active, does not prevent operation of either circuit.

Reset Level

Remote

NonLatch


Ckt's Energzd [Any

Ckt Energzd]

The respective evap sat temp fell below the water temp cutout setting while the evap liquid level was greater than -36 mm for 150º-sec degree F seconds while

Chiller is in the Stop mode, or in Auto mode with no compressors running. Energize small Evap Circulating

Pump (RTUD A/C) and Evap Water pump Relay (but only if "Evap Water Pump Diagnostic Override" setting is enabled) until diagnostic auto resets, then de-energize the circ pump and return to normal evap pump control.

Automatic reset occurs when the derived evap sat temp rises 2°F (1.1°C) above the cutout setting for 1 minute or the liquid level is below -36.0 mm for 20 minutes, or any compressor restarts. OA temp is substituted for evap sat temp in case of invalidity. This diagnostic even while active, does not prevent operation of either circuit.

Remote

NonLatch

NonLatch

NonLatch

Any Ckt[s] Energzd

[No Ckt(s) Energzd]

The evaporator water temp. fell below the cutout setpoint for 30 degree F Seconds while the compressor was running. Automatic reset occurs when the temperature rises 2° F (1.1°C) above the cutout setting for 2 minutes. This diagnostic shall not de-energize the

Evaporator Water Pump Output.

Estab. Evap. Water

Flow on going from

STOP to AUTO or Evap

Pump Override.

Evaporator water flow was not proven within 20 minutes of the Evaporator water pump relay being energized in normal "Stop" to "Auto" transition. If the pump is overridden to "On" for certain diagnostics, the delay on diagnostic callout shall be only 255 seconds.

The pump command status will not be effected by this diagnostic in either case.

[All Stop modes] a. The Evaporator water flow switch input was open for more than 6 contiguous seconds (or 15 seconds for thermal dispersion type flow switch). b. This diagnostic does not de-energize the evap pump output c. 6 seconds of contiguous flow shall clear this diagnostic.

Remote

Remote

Remote

CG-SVU02C-E4


Diagnostic Name

High Evaporator


Affects

Target

Chiller

High Evaporator

Water Temperature

Condenser Water

Flow Overdue

Condenser Water

Flow Lost

Chiller

Chiller

Chiller

Severity

Immediate

Info and

Special

Action

Normal

Persistence

Active Modes


All

NonLatch

NonLatch

Criteria

The evaporator refrigerant pressure of either circuit has risen above 190 psig. The evaporator water pump relay will be de-energized to stop the pump regardless of why the pump is running. The diagnostic will auto reset and the pump will return to normal control when all of the evaporator pressures fall below 185 psig. The primary purpose is to stop the evaporator water pump and its associated pump heat from causing refrigerant side pressures, close to the evaporator relief valve setting, when the chiller is not running, such as could occur with

Evap Water Flow Overdue or Evaporator Water Flow

Loss Diagnostics.

Only effective if either

1)Evap Wtr Flow

Overdue,

2)Evap Wtr Flow Loss, or 3)Low Evap Rfgt

Temp,-Unit Off, diagnostic is active.

The leaving water temperature exceeded the high evap water temp limit (TV service menu settable -default

105F) for 15 continuous seconds. The evaporator water pump relay will be de-energized to stop the pump but only if it is running due one of the diagnostics listed on the left . The diagnostic will auto reset and the pump will return to normal control when the temperature falls

5°F below the trip setting. The primary purpose is to stop the evaporator water pump and its associated pump heat from causing excessive waterside temperatures and waterside pressures when the chiller is not running but the evap pump is on due to either

Evap Water Flow Overdue, Evaporator Water Flow Loss

, or Low Evap Temp - Unit Off Diagnostics. This diagnostic will not auto clear solely due to the clearing of the enabling diagnostic.

Reset Level

Remote

Remote

NonLatch

Estab Cond Water

Flow

Condenser water flow was not proven within 20 minutes of the condenser pump relay being energized.

The Cond Pump shall be commanded off. Diagnostic is reset with return of flow (although only possible with external control of pump).

Remote

Immediate

NonLatch

Start and All Run

Modes

The condenser water flow proof input was open for more than 6 contiguous seconds (or 15 seconds for thermal dispersion type flow switch) after flow had been proven. This diagnostic is automatically cleared once the compressor is stopped by a fixed time out of 7 sec. In

Cooling Mode: The Cond Pump shall be commanded off but the Evap pump command will not be effected. once the diagnostic auto clears, if diff to start is met, the cond pump can be restarted. In Heating Mode: The

Cond Pump shall remain on, and the Evap pump shall shut off - once diagnostic auto clears, if diff to start is met, the chiller may restart normally and the evap pump can be restarted.

Remote

CG-SVU02C-E4 41

42


Diagnostic Name

High Pressure

Cutout -

Compressor 1A

High Pressure

Cutout -

Compressor 2A

Excessive

Condenser Pressure

- Circuit 1

Excessive

Condenser Pressure

- Circuit 2

Emergency Stop

Affects

Target

Circuit

Circuit

Circuit

Circuit

Chiller

Severity

Immediate

Immediate

Immediate

Immediate

Immediate

Persistence

Latch

Latch

Latch

Latch

Active Modes


All

Criteria

A high pressure cutout was detected on Compressor

1A; trip at 270 ± 5 PSIG. Note: Other diagnostics that may occur as an expected consequence of the HPC trip will be suppressed from annunciation. These include

Phase Loss, Power Loss, and Transition Complete Input

Open. For Air Cooled Condenser, check for dirty coils or any fouling or restrictions as well as proper operation and rotational direction of all fans..

Reset Level

Local

All A high pressure cutout was detected on Compressor

1A; trip at 270 ± 5 PSIG. Note: Other diagnostics that may occur as an expected consequence of the HPC trip will be suppressed from annunciation. These include

Phase Loss, Power Loss, and Transition Complete Input

Open. For Air Cooled Condenser, check for dirty coils or any fouling or restrictions as well as proper operation and rotational direction of all fans..

Local

All

All

The condenser pressure transducer of this circuit has detected a pressure in excess of the safe high side pressure as limited by the particular compressor type or the evaporator distributor present on this particular chiller. For Air Cooled Condenser, check for dirty coils or any fouling or restrictions as well as proper operation and rotational direction of all fans.

The condenser pressure transducer of this circuit has detected a pressure in excess of the safe high side pressure as limited by the particular compressor type or the evaporator distributor present on this particular chiller. For Air Cooled Condenser, check for dirty coils or any fouling or restrictions as well as proper operation and rotational direction of all fans.

Remote

Remote

Latch All a. EMERGENCY STOP input is open. An external interlock has tripped. Time to trip from input opening to unit stop shall be 0.1 to 1.0 seconds.

Local

Outdoor Air

Temperature

Sensor

Starter Panel High

Temperature Limit

- Compressor 1A

Starter Module

Memory Error Type

1Starter 1A

Chiller

RTUD with

ACFC#NONE-

Normal

Shutdown;

OATS=INST-

Special Action

Latch

Latch

Circuit

None


Action

Info

NonLatch

Latch

All

All

All

Bad Sensor or LLID. If the outdoor temperature is used for CHW reset, there shall be no CHW reset.

Apply slew rates per Chilled Water Reset spec. RTUD: if this diagnostic occurs, operational pumpdown will be performed regardless of the last valid temperature.

For RTWD, if installed for low ambient lockout, there shall be no LA lockout .

Remote

Starter Panel High Limit Thermostat (170°F) trip was detected. Compressor 1A is shutdown and inoperative until the thermostat resets. Note: Other diagnostics that may occur as an expected consequence of the

Panel High Temp Limit trip will be suppressed from annunciation. These include Momentary Power Loss,

Phase Loss, Power Loss, and Transition Complete

Input for Compressor 1A.

Checksum on RAM copy of the Starter LLID configuration failed. Configuration recalled from

EEPROM.

Local

Local

CG-SVU02C-E4


Diagnostic Name

Starter Module


1 - Starter 2A

Starter Module


2 - Starter 1A

Starter Module


2 - Starter 2A

Affects

Target

None

Circuit

Circuit

Severity

Info

Immediate

Immediate

Persistence

Active Modes


All

Latch

Latch

Latch

All

All

Pumpdown

Terminated -

Circuit 1

Pumpdown

Terminated -

Circuit 2

Pumpdown

Terminated by

Time - Circuit 1

Pumpdown

Terminated by

Time - Circuit 2

MP: Invalid

Configuration

MP Application

Memory CRC Error

MP: Non-Volatile

Memory Reformat

Check Clock

MP: Could not

Store Starts and

Hours

MP: Non-Volatile

Block Test Error

Starter Failed to

Arm/Start -

Cprsr 1A

Starter Failed to

Arm/Start -

Cprsr 2A

Oil Analysis

Recommended -

Ckt #1

Circuit

Circuit

Circuit

Circuit

None

Chiller

None

Chiller

None

None

Circuit

Circuit

Circuit

Info

Info

Info

Info

Immediate

Immediate

Info

Info

Info

Info

Normal

Normal

Info

NonLatch

NonLatch

NonLatch

NonLatch

Latch

Latch

Latch

Latch

Latch

Latch

Latch

Latch

Latch

All

All

Criteria

Checksum on RAM copy of the Starter LLID configuration failed. Configuration recalled from

EEPROM.

Checksum on EEPROM copy of the Starter LLID configuration failed. Factory default values used.

Reset Level

Local

Local

Service or

Operational

Pumpdown

Service or

Operational

Pumpdown

Service Pumpdown

Service Pumpdown

All

All Modes

All

All

All

All

Checksum on EEPROM copy of the Starter LLID configuration failed. Factory default values used.

Operational or Service Pumpdown cycle for this circuit was terminated abnormally due to excessive time (op pd only) or due to a specific set of diagnostic criteria but w/o associated latching diagnostics . (RTWD max

Operation Pumpdown = 2 min)

Operational or Service Pumpdown cycle for this circuit was terminated abnormally due to excessive time (op pd only) or due to a specific set of diagnostic criteria but w/o associated latching diagnostics . (RTWD max

Operation Pumpdown = 2 min)

Service Pumpdown cycle for this circuit was terminated abnormally due to excessive time (RTWD max Service Pumpdown = 4 min).

Service Pumpdown cycle for this circuit was terminated abnormally due to excessive time (RTWD max Service Pumpdown = 4 min).

MP has an invalid configuration based on the current software installed.

Memory error criteria TBD

MP has determined there was an error in a sector of the Non-Volatile memory and it was reformatted.

Check settings.

The real time clock had detected loss of its oscillator at some time in the past. Check / replace battery?

This diagnostic can be effectively cleared only by writing a new value to the chiller's time clock using the TechView or DynaView's "set chiller time" functions.

MP has determined there was an error with the previous power down store. Starts and Hours may have been lost for the last 24 hours.

MP has determined there was an error with a block in the Non-Volatile memory. Check settings.

Starter failed to arm or start within the allotted time

(15 seconds).

Starter failed to arm or start within the allotted time

(15 seconds).

Local

Local

Local

Local

Local

Remote

Remote

Remote

Remote

Remote

Remote

Local

Local

Remote "Service Messages" enabled

Diagnostic occurs when accumulated circuit operating hours since last initialized exceeds 2000 hours.

Diagnostic can be manually cleared but will reoccur every month (720 hours on real time clock) as long as accumulator is not re-initialized.

CG-SVU02C-E4 43

44


Diagnostic Name

Oil Analysis

Recommended -

Ckt #2

Oil Filter Change

Recommended -

Cprsr 1A

Oil Filter Change

Recommended -

Cprsr 2A

LCI-C Software

Mismatch: Use BAS

Tool

Software Error

1001: Call Trane

Service

Affects

Target

Circuit

Circuit

Circuit

Chiller

All functions

Severity

Info

Info

Info

Info

Persistence

Latch

Active Modes


Criteria

"Service

Messages" enabled

Diagnostic occurs when accumulated circuit operating hours since last initialized exceeds 2000 hours.

Diagnostic can be manually cleared but will reoccur every month (720 hours on real time clock) as long as accumulator is not re-initialized.

Latch

"Service

Messages" enabled

(After RTUD release in Fall of 09:) Diagnostic occurs only when "service messages" are enabled and when Oil

Filter Life remaining falls below 5 %. Diagnostic can be manually cleared but will reoccur every month real time

(720 hours on real time clock) as long as the oil filter life remaining does not rise above 20% (through normal calculations or reinitializing) (Prior to RTUD Release in

Fall of 09): Diagnostic occurs only when "service messages" are enabled and when average oil pressure drop exceeds 18%. Diagnostic can be manually cleared but will reoccur every month (720 hours on real time clock) as long as average pressure drop does not fall below 16%.

Reset Level

Remote

Remote

Latch

"Service

Messages" enabled

(After RTUD release in Fall of 09:) Diagnostic occurs only when "service messages" are enabled and when Oil

Filter Life remaining falls below 5 %. Diagnostic can be manually cleared but will reoccur every month real time

(720 hours on real time clock) as long as the oil filter life remaining does not rise above 20% (through normal calculations or reinitializing) (Prior to RTUD Release in

Fall of 09): Diagnostic occurs only when "service messages" are enabled and when average oil pressure drop exceeds 18%. Diagnostic can be manually cleared but will reoccur every month (720 hours on real time clock) as long as average pressure drop does not fall below 16%.

Remote

All

NonLatch

The neuron software in the LCI-C module does not match the chiller type. Download the proper software into the LCI-C neuron. To do this, use the Rover service tool, or a LonTalk® tool capable of downloading software to a Neuron 3150®.

Remote

Immediate Latch

All

A high level software watchdog has detected a condition in which there was a continuous 1 minute period of compressor operation, with neither

Evaporator water flow nor a" contactor interrupt failure" diagnostic active. The presence of this software error message suggests an internal software problem has been detected. The events that led up to this failure, if known, should be recorded and transmitted to Trane

Controls Engineering.

Local

CG-SVU02C-E4


Diagnostic Name

Software Error 1002:

Call Trane Service

Affects

Target

All functions

Severity

Immediate

Persistence

Active Modes


All

Latch

Software Error 1003:

Call Trane Service

All functions

Immediate

Latch

All

Criteria

Reported if state chart misalignment in stopped or inactive state occurred while a compressor was seen to be operating and this condition lasted for at least 1 minute (cmprsr operation due to Service Pumpdown or with Contactor Interrupt Failure diagnostic is excluded).

The presence of this software error message suggests an internal software problem has been detected. The events that led up to this failure, if known, should be recorded and transmitted to Trane Controls Engineering.

Reported if state chart misalignment occurred inferred from either the Capacity Control, Circuit, or Compressor

State Machines remaining in the Stopping state for more than 3 minutes. The presence of this software error message suggests an internal software problem has been detected. The events that led up to this failure, if known, should be recorded and transmitted to

Trane Controls Engineering.

Reset Level

Local

Local

CG-SVU02C-E4 45

46

Diagnostics

Table 5 - Communication Diagnostics

Notes:

1. The following communication loss diagnostics will not occur unless that input or output is required to be present by the particular configuration and installed options for the chiller.

2. Communication diagnostics

(with the exception of "Excessive

Loss of Comm" are named by the Functional Name of the input or output that is no longer being heard from by the Main

Processor.

Many LLIDs, such as the Quad Relay

LLID, have more than one functional output associated with it. A comm loss with such a multiple function board will generate multiple diagnostics. Refer to the Chiller's wiring diagrams to relate the occurrence of multiple communication diagnostics back to the physical llid boards that they have been assigned to (bound).

Diagnostic Name

Comm Loss: Male Port

Unload Compressor 1A

Comm Loss: Male Port Load

Compressor 1A

Comm Loss: Male Port

Unload Compressor 2A

Comm Loss: Male Port Load

Compressor 2A

Comm Loss: Female Step

Load Compressor 1A

Comm Loss: Female Step

Load Compressor 2A

Circuit

Circuit

Circuit

Circuit

Circuit

Circuit

Comm Loss: Motor Winding

Thermostat Compressor 1A

Comm Loss: Motor

Winding Thermostat

Compressor 2A

Comm Loss: External

Auto/Stop

Comm Loss: Emergency

Stop

Circuit

Circuit

Chiller

Chiller


Circuit Lockout, Circuit #1


Circuit Lockout, Circuit #2

Comm Loss: External Ice

Building Command

Affects

Target

Circuit

Circuit

Ice

Making

Mode

Severity Persistence Active Modes

[Inactive

Modes]

Normal Latch All

Criteria

Continual loss of communication between the MP and the

Functional ID has occurred for a 30 second period.

Normal

Normal

Latch

Latch

All

All





Normal Latch All

Normal

Normal

Latch

Latch

All

All







Normal Latch All

Normal

Normal

Normal

Special

Action

Special

Action

Special

Action

Latch

Latch

Latch

Latch

Latch

Latch

All

All

All

All

All

All










Functional ID has occurred for a 30 second period. MP will nonvolatily hold the lockout state (enabled or disabled) that was in effect at the time of comm loss.


Functional ID has occurred for a 30 second period. MP will nonvolatily hold the lockout state (enabled or disabled) that was in effect at the time of comm loss


Functional ID has occurred for a 30 second period. Chiller shall revert to normal (non-ice building) mode regardless of last state.

Remote

Remote

Remote

Remote

Remote

Remote

Remote

Reset

Level

Remote

Remote

Remote

Remote

Remote

Remote

RLC-SVU05A-E4

Diagnostics

Diagnostic Name

Comm Loss: Heat/Cool

Switch

Comm Loss: Outdoor Air

Temperature

Comm Loss: Evaporator

Leaving Water Temperature


Entering Water

Temperature

Comm Loss: Condenser

Leaving Water Temperature


Entering Water

Temperature

Comm Loss: Discharge

Temperature Circuit 1,

Cprsr 1A

Comm Loss: Discharge

Temperature, Circuit 2 ,

Cprsr 2A

Affects

Target

Heat

Mode

Chiller

Chiller

Chiller

Chiller

Chiller

Circuit

Circuit

Severity

Special Action

Persistence

Latch

Active

Modes

[Inactive

Modes]

All

Criteria

RTUD with

ACFC#NONE-

Normal

Shutdown;

OATS=INST-

Special Action

Normal

Normal

Info and Special

Action

Info and Special

Action

Normal

Normal

Latch

Latch

Latch

Latch

Latch

Latch

Latch

All

All

All

All

All

All

All

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period.

Reset

Level


Functional ID has occurred for a 30 second period. The external input shall revert to normal (cooling) request regardless of last state. Chiller mode shall follow "OR" arbitration for heating/cooling mode, i.e. If any of the remaining inputs (front panel of BAS) are requesting heat mode, then the chiller shall be in heat mode.


Functional ID has occurred for a 30 second period. If the outdoor temperature is used for CHW reset, there shall be no CHW reset. Apply slew rates per Chilled Water Reset spec. For RTUD if this diagnostic occurs, operational pumpdown will be performed regardless of the last valid temperature. For RTWD, if installed for low ambient lockout, there shall be no lockout




Functional ID has occurred for a 30 second period. Note:

Entering Water Temp Sensor is used in EXV pressure control as well as ice making & CHW reset, so it must cause a unit shutdown even if Ice or CHW reset is not installed.

RTWD Only: Continual loss of communication between the

MP and the Functional ID has occurred for a 30 second period. If Chiller is running in the heat mode of operation normal shutdown, otherwise, informational only.

Discontinue Min Capacity Limit forced cprsr loading due to

Low DP in subsequent startups.

Remote

Remote

Remote

Remote

Remote

RTWD Only: Continual loss of communication between the

MP and the Functional ID has occurred for a 30 second period. If chiller running, and condenser water regulating valve option installed, force valve to 100% flow.



Remote

Remote

Remote

RLC-SVU05A-E4 47

48

Diagnostics

Diagnostic Name


Chilled/Hot Water

Setpoint


Current Limit Setpoint

Comm Loss: High

Pressure Cutout Switch,

Cprsr 1A

Comm Loss: High

Pressure Cutout Switch,

Cprsr 2A


Water Flow Switch

Affects

Target

External

Chilled

Water setpoint

External

Current

Limit setpoint

Circuit

Severity

Special Action

Special Action

Immediate

Persistence

Latch

Active

Modes

[Inactive

Modes]

All

Criteria

Latch

Latch

All

All

Reset

Level


Chiller shall discontinue use of the External Chilled

Water Setpoint source and revert to the next higher priority for setpoint arbitration

Remote


Chiller shall discontinue use of the External Current limit setpoint and revert to the next higher priority for

Current Limit setpoint arbitration


Remote

Remote

Circuit Immediate Latch All Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period.

Remote

Chiller Immediate Latch All Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period.

Remote

Chiller Immediate


Water Flow Switch

Comm Loss: Suction

Rfgt Pressure, Circuit #1

Comm Loss: Suction

Rfgt Pressure, Circuit #2

Comm Loss: Cond Rfgt

Pressure, Circuit #1

Comm Loss: Cond Rfgt

Pressure, Circuit #2

Comm Loss: Oil

Pressure, Cprsr 1A

Comm Loss: Oil

Pressure, Cprsr 2A

Comm Loss: Oil Return

Gas Pump Fill -

Circuit #1

Circuit

Circuit

Circuit

Circuit

Circuit

Circuit

Circuit

Immediate

Immediate

Immediate

Immediate

Immediate

Immediate

Normal

Latch

Latch

Latch

Latch

Latch

Latch

Latch

Latch

All

All

[Ckt/Cprsr lock out]

All

[Ckt/Cprsr lock out]

All

RTWD only: Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period.


Note: This diagnostic is replaced by diagnostic 5FB below with Rev 15.0


Note: This diagnostic is replaced by diagnostic 5FD below with Rev 15.0


All

All

All




All


Remote

Remote

Remote

Remote

Remote

Remote

Remote

Remote

RLC-SVU05A-E4

Diagnostics

Diagnostic Name


Gas Pump Fill -

Circuit #2


Gas Pump Drain -

Circuit #1


Gas Pump Drain -

Circuit #2

Comm Loss: Oil Loss

Level Sensor Input -

Circuit #1

Comm Loss: Oil Loss

Level Sensor Input -

Circuit #2


Water Pump Relay


Water Pump Relay

Comm Loss: Ice-Making

Status


Rfgt Liquid Level,

Circuit #1


Rfgt Liquid Level,

Circuit #2

Comm Loss: Starter 1A

Comm Loss: Starter 2A

Comm Loss: Electronic

Expansion Valve,

Circuit #1

Comm Loss: Electronic

Expansion Valve,

Circuit #2

Starter 1A Comm

Loss: MP

Affects

Target

Circuit

Circuit

Circuit

Circuit

Circuit

Chiller

Chiller

Chiller

Circuit

Severity

Normal

Normal

Normal

Normal

Persistence

Latch

Active

Modes

[Inactive

Modes]

All

Criteria


Latch All Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period.


Reset

Level

Remote

Remote

Remote


Remote

Normal

Normal

Normal

Special Action

Normal

Latch

Latch

Latch

Latch

Latch

All

All

All

All

All


Remote


RTWD only: Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period.


Chiller shall revert to normal (non-ice building) mode regardless of last state.


Remote

Remote

Remote

Remote

Circuit

Circuit

Circuit

Circuit

Circuit

Circuit

Normal

Immediate

Immediate

Normal

Normal

Immediate

Latch

Latch

Latch

Latch

Latch

Latch

All

All

All

All

All

All





Remote

Local

Local

Remote


Starter has had a loss of communication with the MP for a 15 second period.

Remote

Local

RLC-SVU05A-E4 49

Diagnostics

Diagnostic Name

Starter 2A Comm

Loss: MP

Comm Loss: Local

BAS Interface

Affects

Target

Circuit

Chiller

Severity

Immediate

Info

Comm Loss: Op

Status Programmable

Relays

Comm Loss: Starter

Panel High

Temperature Limit ,

Compressor 1A

Comm Loss:

Condenser Rfgt

Pressure Output

Comm Loss: Cond

Head Press Cntrl

Output

Comm Loss: Chiller %

RLA Output

Comm Loss: Fan

Inverter Fault,

Circuit #1

None

None

Chiller

Chiller

Chiller

Circuit

(fan control)

Comm Loss: Fan

Inverter Fault,

Circuit #2

Circuit

(fan control)

Comm Loss: Fan

Inverter Speed

Command,

Circuit #1

Comm Loss: Fan

Inverter Speed

Command,

Circuit #2

Comm Loss: Fan

Control Relays,

Circuit #1

Comm Loss: Fan

Control Relays,

Circuit #2

Comm Loss: Ext Noise

Setback Command

Comm Loss: Noise

Setback Relay

Comm Loss:

Evaporator Off-cycle

Freeze Protection

Relay

Circuit

(fan control)

Circuit

(fan control)

Circuit

Circuit

None

None

None

Info

Info

Info

Immediate

Info Latch

Special Mode (or in single fan deck:

Circuit Immediate shutdown)

Latch (or in single fan deck:Latch)










Normal

Normal

Info

Info

Info

Latch

Latch

Latch

Latch

Latch

Latch

Latch

Latch

Persistence

Latch

NonLatch

Latch

Active

Modes

[Inactive

Modes]

All

Criteria

All

All

Starter has had a loss of communication with the MP for a 15 second period.


Use last valid BAS setpoints.

Diagnostic is cleared when successful communication is established with the LonTalk LLID (LCIC) or BacNet

LLID (BCIC).


All

All

All

All

All

All

All

All

All

All

All

All

All







Reset

Level

Local

Remote

Remote

Local

Remote


Remote



Operate the remaining fans as fixed speed fan deck. For single fan deck configurations, this diagnostic causes a latching circuit shutdown







Remote

Remote

Remote

Remote

Remote


Remote

Remote

Remote

Remote

Remote

50 CG-SVU02C-E4

Diagnostics

Table 6 - Main Processor - Boot Messages and Diagnostics

DynaView Display Message

Boot Software Part

Numbers:

LS Flash --> 6200-0318-04

MS Flash --> 6200-0319-04

Err2: RAM Pattern 1 Failure

Err2: RAM Pattern 2 Failure

Err2: RAM Addr Test #1

Failure

Err2: RAM Addr Test #2

Failure

No Application Present

Please Load Application...

App Present. Running

Selftest.…

Selftest Passed

App Present. Running

Selftest…

Err3: CRC Failure

A Valid Configuration is

Present

Err4: UnHandled Interrupt

Restart Timer:

[3 sec countdown timer]

Description

Troubleshooting

The "boot code" is the portion of the code that is resident in all MPs regardless of what application code (if any) is loaded. Its main function is to run power up tests and provide a means for downloading application code via the MP's serial connection. The Part numbers for the code are displayed in the lower left hand corner of the DynaView during the early portion of the power up sequence and during special programming and converter modes. See below. For the

EasyView, the extension of the boot code part number is displayed for approximately 3 immediately following power up.

// This is normal, but you should provide this information when contacting Technical Service about power up problems.

There were RAM errors detected in RAM Test Pattern #1.

// Recycle power, if the error persists, replace MP.

There were RAM errors detected in RAM Test Pattern #2.

//Recycle power, if the error persists, replace MP.

There were RAM errors detected in RAM Address Test #1.

// Recycle power, if error persists, replace MP.

There were RAM errors detected in RAM Address Test #2.

//Recycle power, if the error persists, replace MP.

No Main Processor Application is present - There are no RAM Test Errors.

// Connect a TechView Service Tool to the MP's serial port, provide chiller model number (configuration information) and download the configuration if prompted by TechView. Then proceed to download the most recent RTAC application or specific version as recommended by Technical Service.

An application has been detected in the Main Processor's nonvolatile memory and the boot code is proceeding to run a check on its entirety. 8 seconds later, the boot code had completed and passed the (CRC) test.

// Temporary display of this screen is part of the normal power up sequence.

An application has been detected in Main Processor's nonvolatile memory and the boot code is proceeding to run a check on its entirety. A few seconds later, the boot code had completed but failed the (CRC) test.

//Connect a TechView Service Tool to the MP's serial port, provide chiller model number (configuration information) and download the configuration if prompted by TechView. Then proceed to download the most recent RTAC application or specific version as recommended by Technical Service. Note that this error display may also occur durring the programming process, if the MP never had a valid application any time prior to the download. If the problem persists, replace the MP.

A valid configuration is present in the MP's nonvolatile memory. The configuration is a set of variables and settings that define the physical makeup of this particular chiller. These include: number/airflow,/and type of fans, number/and size of compressors, special features, characteristics, and control options.

// Temporary display of this screen is part of the normal power up sequence.

An unhandled interrupt has occurred while running the application code. This event will normally cause a safe shutdown of the entire chiller. Once the countdown timer reaches 0, the processor will reset, clear diagnostics, and attempt to restart the application and allow a normal restart of chiller as appropriate.

// This condition might occur due to a severe electro-magnetic transient such as can be caused by a near lightening strike. Such events should be rare or isolated and if no damage results to the CH530 control system, the Chiller will experience a shutdown and restart. If this occurs more persistently it may be due to an MP hardware problem. Try replacing the MP. If replacement of the MP proves ineffective, the problem may be a result of extremely high radiated or conducted EMI. Contact Technical Service.

If this screen occurs immediately after a software download, attempt to reload both the configuration and the application. Failing this, contact Technical Service.

CG-SVU02C-E4 51

52

Diagnostics

Err5: Operating System

Error

Restart Timer:


Err6: Watch Dog Timer Error

Restart Timer:


Err7: Unknown Error

Restart Timer:


Err8: Held in Boot by User

Key Press

Converter Mode

Programming Mode

Software Error 1001: Call

Trane Service


Trane Service


Trane Service

An Operating System error has occurred while running the application code. This event will normally cause a safe shutdown of the entire chiller. Once the countdown timer reaches 0, the processor will reset, clear diagnostics, and attempt to restart the application and allow a normal restart of chiller as appropriate.

// See Err 4 above

A Watch Dog Timer Error has occurred while running the application code. This event will normally cause a safe shutdown of the entire chiller. Once the countdown timer reaches 0, the processor will reset, clear diagnostics, and attempt to restart the application allowing a normal restart of chiller as appropriate.

An unknown Error has occurred while running the application code. This event will normally cause a safe shutdown of the entire chiller. Once the countdown timer reaches 0, the processor will reset, clear diagnostics, and attempt to restart the application allowing a normal restart of chiller as appropriate

The boot detected a key press in the center of the DynaView or both the + and - keys pressed on an EasyView while the

MP was in the boot code. Upon seeing this message the user can use Techview to connect to the MP to perform a software download or another service tool function.

A command was received from the Service Tool (Tech View) to stop the running application and run in the "converter mode". In this mode the MP acts as a simple gateway and allows the TechView service computer to talk to all the LLIDS on the IPC3 bus.

A command was received by the MP from the Tech View Service Tool and the MP is in the process of first erasing and then writing the program code to its internal Flash (nonvolatile) Memory. Note that if the MP never had a prior application already in memory, the error code "Err3"will be displayed instead of this, during the programming download process.

See item in Main Processor Diagnostics table above



Design Note: In general, all failures/comm loss due to CH530 components should have a latching diagnostic and effect. All customer inputs failures (out of range, etc) are generally nonlatching.

RLC-SVU05A-E4

Diagnostics

Programmable Relays

(Alarms and Status)

CH530 provides a flexible alarm or chiller status indication to a remote location through a hard wired interface to a dry contact closure.

Four relays are available for this function, and they are provided

(generally with a Quad Relay Output

LLID) as part of the Alarm Relay

Output Option.

The events/states that can be assigned to the programmable relays are listed in the following table and through a TechView configuration.

Alarm - Latching

This output is true whenever there is any active latching shutdown diagnostic that targets the Unit,

Circuit, or any of the Compressors on a circuit.

Alarm - NonLatching

This output is true whenever there is any active non-latching shutdown diagnostic that targets the Unit,

Circuit, or any of the Compressors on a circuit.

Alarm

This output is true whenever there is any active latching or nonlatching shutdown diagnostic that targets the Unit, Circuit, or any of the Compressors on a circuit.

Alarm Ckt 1

This output is true whenever there is any active latching or nonlatching shutdown diagnostic that targets Circuit 1, or any of the

Compressors on Circuit 1.

Alarm Ckt 2

This output is true whenever there is any active latching or nonlatching shutdown diagnostic that targets Circuit 2, or any of the

Compressors on Circuit 2.

Unit Limit Mode

This output is true whenever a circuit on the unit has been running in one of the limit modes continuously for the Limit Relay debounce time. A given limit or overlapping of different limits must be in effect continuously for the debounce time prior to the output becoming true. It will become false if no limits are present for the debounce time.

Compressor Running

The output is true whenever any compressor is running.

Circuit 1 Running

The output is true whenever any compressor of Circuit 1 is running.

Circuit 2 Running

The output is true whenever any compressor of Circuit 2 is running.

Maximum Capacity

The output is true whenever the unit has reached maximum capacity continuously for the Max Capacity

Relay debounce time. The output is false when the unit is not at maximum capacity continuously for the fitler debounce time.

Head Pressure Relief Request

This relay output is energized anytime the chiller or a single circuit on the chiller is running in one of the following modes; Ice

Making Mode, or Condenser

Pressure Limit continuously for the duration specified by the Chiller

Head Relief Relay Filter Time. The

Chiller Head Relief Relay Filter Time is a service setpoint. The relay output is de-energized anytime the chiller exits all above modes continuously for the duration specified by the same Chiller Head

Relief Relay Filter Time

None:

This selection is desireable to provide an easy way for a customer to defeat the effect of the relay, if it has already been wired. For instance, if the relay was normally programmed as an "alarm" relay, and was wired to a claxon, it may be desirable to temporarily defeat the feature without changing wiring.

Default Assignments

The four available relays the Alarm

Package Option shall be assigned with the following defaults as follows:

Operation of the Relays:

If any of the four programmable annunciation relays are assigned with the given event or state, that relay shall be energized when the event or state is true and deenergized when the event or state is false pursuant to debounce or filter timing that may be applied per the details of a given assignment.

Table 7 - Default settings

LLID Name

Operating Status

Programmable Relays

LLID Software

Relay Designation

Relay 0

Relay 1

Relay 2

Relay 3

Output Name

Status Relay 4, J2-1,2,3




Default

Unit Limit Mode

Maximum Capacity

Compressor Running

Alarm

RLC-SVU05A-E4 53

54


TechView is the PC (laptop) based tool used for servicing Tracer

CH530. Technicians that make any chiller control modification or service any diagnostic with Tracer

CH530 must use a laptop running the software application

"TechView." TechView is a Trane application developed to minimize chiller downtime and aid the technicians' understanding of chiller operation and service requirements.

CAUTION:

Performing any Tracer

CH530 service functions should be done only by a properly trained service technician. Please contact your local Trane service agency for assistance with any service

requirements. TechView software is available via Trane.com.

(http://www.trane.com/commercial/s oftware/tracerch530/) This download site provides a user the

TechView installation software and

CH530 main processor software that must be loaded onto your PC in order to service a CH530 main processor. The TechView service tool is used to load software into the Tracer CH530 main processor.

Minimum PC requirements to install and operate TechView are:

• Pentium II or higher processor

• 128Mb RAM

• 1024 x 768 resolution of display

• CD-ROM

• 56K modem

• 9-pin RS-232 serial connection

• Operating system - Windows XP

Pro or Vista Business

• USB 2.0 or higher

• Internet Explorer 6.0 or higher

Note

: TechView was designed for

the proceeding listed laptop configuration. Any variation will have unknown results. Therefore, support for TechView is limited to only those operating systems that meet the specific configuration listed here. KestrelView is designed and validated for this specific laptop configuration. Any variation from this configuration may have different results. Therefore, support for KestrelView is limited to only those laptops configured as described above. Trane will not support KestrelView on a laptop configured differently. There is no support for laptops running Intel

Celeron, AMD, Cyrix, or processors other than Pentium. Only laptops with a Pentium II class processor or better are supported.

TechView is also used to perform any CH530 service or maintenance function.

Servicing a CH530 main processor includes:

• Updating main processor software

• Monitoring chiller operation

• Viewing and resetting chiller diagnostics

• Low Level Intelligent Device

(LLID) replacement and binding

• Main processor replacement and configuration modifications

• Setpoint modifications

• Service overrides

RLC-SVU05A-E4

RLC-SVU05A-E4


TechView installation has been simplified. All related software, including Main Processor software, is now packaged together with the

TechView application resulting in a single installation.

Note: You do not have to uninstall an earlier version of TechView.

The new TechView will update the existing files.

To install TechView on your computer

1. Create a new folder titled CH530

(C:\CH530) on your hard drive.

This \CH530 folder is the standard location for the installation file. Storing the installation file in this location helps you remember where it is stored and makes it easier for technical support personnel to assist you.

2. Click the Download link for the latest version on the TechView

Software Download page.

The File Download – Security

Warning dialog box appears.

3. Click Save to copy the installation file to your hard drive.

Specify the \CH530 folder you created in Step 1 on the Save dialog box.

4. Double-click the installation (.exe) file.

The License Agreement dialog box appears.

5. Click I Agree after reviewing the

License Agreement.

The Choose Components dialog box appears. All components are selected by default. (These are the actual MP versions for all units.)

Deselect any components you do not want included in the installation.

Note: Deselecting components reduces the size of the installed application.

6. Click Install.

The Installation dialog appears with a progress meter indicating the percentage of the installation that has occurred. An installation information file appears when the installation is complete.

7. Click Close to exit the installation routine.

55

www.trane.com

For more information, contact your local sales office or e-mail us at [email protected]

Literature Order Number

Date

RLC-SVU05A-E4

1109

New

Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice. Only qualified technicians should perform the installation and servicing of equipment referred to in this publication.

Trane bvba

Lenneke Marelaan 6 -1932 Sint-Stevens-Woluwe, Belgium

ON 0888.048.262 - RPR BRUSSELS

Trane Tracer CH530 User manual

User Guide

Tracer CH530™

Control System for Chillers

RTWD/RTUD 060-250

RLC-SVU05A-E4

Foreword

Warnings and cautions

Safety recommendations

Reception

Warranty

Maintenance contract

Training

Controls Interface

Power Up

Display Screens

Keypad/Display Lockout

Feature

Main Screens

Chiller Mode:

Circuit 1 Mode:

Circuit 2 Mode:

Evap Ent / Lvg Water Temp:

Cond Ent / Lvg Water Temp:

Active Chilled Water Setpoint:

Running

Running - Limit

Auto

12 / 7 C

30 / 35 C

7 C

:

Reports Screen

Main

Evaporator

Condenser

Compressor

ASHRAE Chiller Log

Historic Diagnostics

Reports Settings

Auto

Alarms

Settings Screen

Main Reports Settings

Unit

Feature Settings

Control Settings

Manual Control Settings

Display Settings

Auto Alarms

Auto, Stop/Immediate

Stop

Auto

Alarms

Diagnostics Screen

Rfgt Setpoint Diagnostic

Reset Diags

Operating Mode At Last Diagnostic:

[01] 10:56 PM Nov 26, 2001

Low Chilled Water Temp: Unit Off

[02] 10:55 PM Nov 26, 2001

Low Evaporator Temp: Unit Off

Auto

Alarms

Programmable Relays

(Alarms and Status)

Default Assignments

To install TechView on your computer

Related manuals

Trane

CG-SVU02E-GB

Trane

CCUN 205-211

American Standard

CH530

Trane

RTHD

Trane

CVHE-SVU01E-EN

Trane