Commercial Rooftop Air Handlers, with Variable Air
Volume (VVDA/VVZT) Controls or Constant Air
Volume (CVDA/CVZT) Controls
IntelliPak I models
IntelliPak II models
Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and airconditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment
by an unqualified person could result in death or serious injury.When working on the equipment, observe all precautions in the literature and
on the tags, stickers, and labels that are attached to the equipment.
Read this manual thoroughly before operating or servicing
this unit.
Warnings, Cautions, and Notices
Safety advisories appear throughout this manual as
required.Your personal safety and the proper operation of
this machine depend upon the strict observance of these
precautions.
The three types of advisories are defined as follows:
WARNING
Proper Field Wiring and Grounding
Required!
Failure to follow code could result in death or serious
injury. All field wiring MUST be performed by qualified
personnel. Improperly installed and grounded field
wiring poses FIRE and ELECTROCUTION hazards. To
avoid these hazards, you MUST follow requirements for
field wiring installation and grounding as described in
NEC and your local/state electrical codes.
WARNING
CAUTIONs
NOTICE
Indicates a potentially hazardous
situation which, if not avoided, could
result in death or serious injury.
Indicates a potentially hazardous
situation which, if not avoided, could
result in minor or moderate injury. It
could also be used to alert against
unsafe practices.
Indicates a situation that could result in
equipment or property-damage only
accidents.
Important Environmental Concerns
Scientific research has shown that certain man-made
chemicals can affect the earth’s naturally occurring
stratospheric ozone layer when released to the
atmosphere. In particular, several of the identified
chemicals that may affect the ozone layer are refrigerants
that contain Chlorine, Fluorine and Carbon (CFCs) and
those containing Hydrogen, Chlorine, Fluorine and
Carbon (HCFCs). Not all refrigerants containing these
compounds have the same potential impact to the
environment.Trane advocates the responsible handling of
all refrigerants-including industry replacements for CFCs
such as HCFCs and HFCs.
Important Responsible Refrigerant
Practices
Trane believes that responsible refrigerant practices are
important to the environment, our customers, and the air
conditioning industry. All technicians who handle
refrigerants must be certified. The Federal Clean Air Act
(Section 608) sets forth the requirements for handling,
reclaiming, recovering and recycling of certain
refrigerants and the equipment that is used in these
service procedures. In addition, some states or
municipalities may have additional requirements that
must also be adhered to for responsible management of
refrigerants. Know the applicable laws and follow them.
WARNING
Personal Protective Equipment (PPE)
Required!
Installing/servicing this unit could result in exposure to
electrical, mechanical and chemical hazards.
•Before installing/servicing this unit, technicians
MUST put on all PPE required for the work being
undertaken (Examples; cut resistant gloves/sleeves,
butyl gloves, safety glasses, hard hat/bump cap, fall
protection, electrical PPE and arc flash clothing).
ALWAYS refer to appropriate Material Safety Data
Sheets (MSDS)/Safety Data Sheets (SDS) and OSHA
guidelines for proper PPE.
•When working with or around hazardous chemicals,
ALWAYS refer to the appropriate MSDS/SDS and
OSHA/GHS (Global Harmonized System of
Classification and Labelling of Chemicals) guidelines
for information on allowable personal exposure
levels, proper respiratory protection and handling
instructions.
•If there is a risk of energized electrical contact, arc, or
flash, technicians MUST put on all PPE in accordance
with OSHA, NFPA 70E, or other country-specific
requirements for arc flash protection, PRIOR to
servicing the unit. NEVER PERFORM ANY
SWITCHING, DISCONNECTING, OR VOLTAGE
TESTING WITHOUT PROPER ELECTRICAL PPE AND
ARC FLASH CLOTHING. ENSURE ELECTRICAL
METERS AND EQUIPMENT ARE PROPERLY RATED
FOR INTENDED VOLTAGE.
Failure to follow instructions could result in death or
serious injury.
This document and the information in it are the property of
Trane, and may not be used or reproduced in whole or in
part without written permission.Trane reserves the right
to revise this publication at any time, and to make changes
to its content without obligation to notify any person of
such revision or change.
Trademarks
All trademarks referenced in this document are the
trademarks of their respective owners.
Revision History
•Minor running edits.
•Addition of “Fault Detection and Diagnostics.,” p. 7
•Addition of configuration screen details in
“CONFIGURATION Menu,” p. 98
•Addition of testing and troubleshooting details in
“SERVICE MODE Menu (Local Human Interface only),”
p. 107
•Additional values added to Active Diagnostic - Auto
Reset, see p. 118.
1. Echelon, LON, LONWORKS, LonBuilder, NodeBuilder, LonManager, LonTalk, LonUsers, Neuron, 3120, 3150, the
Echelon logo, and the LonUsers logo are trademarks of Echelon Corporation registered in the United States and other
countries. LonLink, LonResponse, LonSupport, LonMaker, and LonPoint are trademarks of Echelon Corporation.
®
2. BACnet
Inc. (ASHRAE.)
is a registered trademark of the American Society of Heating, Refrigeration and Air-conditioning Engineers
Glossary of Terms
Carefully review these definitions since they are used throughout this document and the Installation, Operation,
Maintenance Guide (IOM). Knowledge of these terms is essential in gaining an understanding of how these units operate.
Active Setpoints. The setpoint which is currently being used by the specified control.
BACnet. An open, device networking communications protocol for controls.This protocol utilizes BACnet and ANSI/
ASHRAE
control systems or subsystems together
Comparative Enthalpy. An economizer/cooling control strategy which compares return air enthalpy with outdoor
enthalpy. If the outdoor enthalpy is significantly less than return enthalpy the economizer will be utilized for cooling.
Compressor Protection Switch. (See Low Pressure Control). A pressure switch installed on the suction line that
prevents compressor operation below the switch’s setpoint. The purpose is to prevent no-flow scroll compressor
operation.
Comm3/4. A Trane proprietary network communication protocol.
Comm5. Trane's implementation of LonTalk (an open network communication protocol).
Condenser Pressure. The saturated condenser pressure measured on each circuit's condenser section on Evaporative
Condenser units. Condenser pressure is converted to Saturated CondenserTemperature for display on the Human
Interface.The data from these sensors is used in head pressure control.
Control Band. The range of temperatures, pressures or humidity which would normally be maintained by the various
control functions.
Control Point. The value of a setpoint that an algorithm is using at any given time.
®
Standard 135-2004 protocol which provides building owners the capability to connect various types of building
6RT-SVP07D-EN
Commonly Used Acronyms
Deadband. A narrow band of sensor range equally spaced above and below the setpoint that defines a region where
the algorithm will be satisfied and the controlled output will be maintained without change.
Dehumidification Override High Zone Temp. The temperature in the critical zone on VAV units where
Dehumidification is disabled to prevent over-heating the space due to excess reheat.
Dehumidification Override Low Zone Temp. The temperature in the critical zone on VAV units where
Dehumidification is disabled to prevent sub-cooling the space due to insufficient reheat.
Demand Control Ventilation (DCV). An ASHRAE compliant ventilation scheme that varies the Outside Air Damper
minimum position or Fresh Air Flow (TRAQs) between minimum and maximum ventilation Setpoints based on CO2 level.
Dry Bulb. An outdoor temperature above which economizing will be disabled (unless comparative enthalpy is the
economizer control type being used.)
Economizer Zone Temp Setpoint Suppression. A parameter used for setting the active economizer cooling control
point to a value lower than the Zone Temp Cooling Setpoint to optimize economizer operation.
Emergency Stop. A binary input on the RTM, connected to a field-supplied switch, when set to OPEN causes a unit
shutdown with a manual reset diagnostic.
Energy RecoveryWheel. A wheel that rotates through the outdoor and exhaust air streams, transferring energy
between the two, to optimize unit efficiency.
Evap Diff. Evaporator Differential is a parameter indicating performance of a refrigeration system. It is calculated by
determining the difference between the entering and leaving temperatures of the evaporator. If this value rises too high
it may indicate a problem with the system.
External Stop. A binary input on the RTM, connected to a field-supplied switch, when set to OPEN causes a unit stop
request.
Fault Detection and Diagnostics. A feature that determines whether the Outside Air damper actuator has failed to
control the damper properly, and annunciates specific diagnostics under such conditions.
Hot Gas Bypass. A feature to reduce a refrigeration circuit's cooling capacity by bypassing hot discharge line
refrigerant directly to the evaporator coil of the system to more effectively operate in low load conditions.
Humidification Control. During modes of continuous fan operation a relay is energized when the Humidity measured
in the controlled space drops below an adjustable Humidification Setpoint.The humidifier device is a user supplied device
placed in the supply air stream.
IntelliPak™ I. Units covering the 20 through 130 ton capacity IntelliPak cabinet sizes, and containing the latest control
modules and software.
IntelliPak™ II. Units covering the 90 through 150 ton capacity IntelliPak II cabinet sizes, and containing the latest control
modules and software.
LonTalk®. An open, device networking communications protocol for controls.This protocol is defined in ANSI approved
typical EIA/CEA-709.1-A-1999.
Low Ambient Compressor Lockout. A function which prevents compressor operation at low outdoor ambient
temperatures.
Low Vi Compressor Operation. Enhancements to the compressor control will be implemented on units with Low Vi
compressors installed, which will insure optimized compressor operation at all times.
Night SetBack (NSB). Applies to the control of the rooftop unit during unoccupied periods. Also refers to the NSB
panel, a communicating wall sensor with night setback capability.
Rapid Restart. Certain unit applications require override of the normal unit startup sequence after a power outage.
Target cooling requirements are established within a specified time to meet extreme high return air temperatures.
RT-SVP07D-EN7
Commonly Used Acronyms
Reference Enthalpy. An outdoor enthalpy value, set at the HI, above which economizing will be disabled.
Remote Human Interface. (See Interprocessor Communication Module). A human interface module designed
to be mounted remotely from the unit. There are some functional differences between a unit mounted and a remote
mounted human interface module.
Reset Amount Maximum. An adjustable parameter on the HI where the maximum amount of reset allowed is defined.
Reset End Temperature. The temperature at which the maximum reset amount will occur.
Reset Start Temperature. The temperature at which reset will begin.
Return Fan Control. . Return Fan Control is a feature which allows units to operate at a higher external or duct system
static pressure, or to reduce the load (horsepower requirement) on the supply fan motor.The fan is placed in the return
air path.
Return Fan Plenum Pressure. The area between the Exhaust and Return Dampers and the outlet of the Return Fan
defines the return plenum. The absolute static pressure measured in this area is the Return Fan Plenum Pressure.
Return Plenum Pressure High Limit. This control feature, available on all return fan options, shuts the supply fan and
return fan off if the pressure in the return plenum exceeds a non-adjustable setpoint of 3.5 iwc.
Space Pressure. The pressure in the building as measured by the space pressure transducer, referenced to outside
(atmospheric) pressure.
Single Zone Variable Air Volume. The active discharge air setpoint, used for cooling, heating and supply fan speed
control, is based on the zone temperature load conditions.
Supply Air Pressure High Limit. A pressure limit to prevent unit casing and/or ductwork over pressurization.
Statitrac™.A control method to maintain proper space pressurization.
Supply Air Pressure. The pressure in inches-water-column (IWC) of the supply duct plenum or outlet as measured by
the supply air pressure transducer, referenced to local outside (atmospheric) pressure.
Supply Air Tempering. An active heating mode where the supply air temperature has dropped below a preset value,
usually due to cold outside air being brought in to provide building ventilation.
Supply Air Temperature Control Point. The revised value of SATemp Setpoint after supply air temperature reset has
been applied.
Supply Air Temperature Reset. A function that shifts the SATemp Setpoint an amount based on the value of another
parameter—typically ZoneTemp or Outdoor AirTemp.The purpose of this function is to lower unit capacity to better meet
load requirements.
Target Setpoints. An internally calculated control point which is typically derived from other setpoints in combination
with specific unit operating conditions.
Variable Speed Compressor. An inverter driven compressor that has the capability to provide continuous-
incremental cooling capacity control.
UCM Control System
Trane Large Commercial Rooftop Units are controlled by a microelectronic control system that consists of a network of
modules and are referred to as Unit Control Modules (UCM).
The unit size, type VVDA (VAV w/ IGV/VFD), SZxx (SZVAV), RRXX (Rapid Restart), CVDA (VAV w/o IGV/VFD), CVZT (CV),
VVZT (SZVAV), heating functions, peripheral devices, options, exhaust capabilities, etc. determine the number and type
of modules that a particular rooftop unit may employ.
The UCM receives analog or binary inputs, then processes this information and supplies outputs in the form of
modulating voltages, contact closures, etc. to control damper actuators, fan motors, compressors, valves, electric heating
coils and other electrical devices in the unit to maintain set comfort levels.
8RT-SVP07D-EN
Commonly Used Acronyms
The UCM provides some equipment protection functions both directly and indirectly, such as duct pressure limits and
compressor lockouts.
Listed below are the various modules that may be employed in a UCM control system.
Rooftop Module (1U1 IntelliPak II / 1U48 IntelliPak I)
(standard on all units)The RTM is the central processor of the system. It continuously receives information from the other
unit modules, sensors, the remote control panel, and customer supplied relays. It then interprets this information and
responds to cooling, heating, and ventilation requests by directing the other modules in the system to energize the proper
unit components. It also directly initiates supply and exhaust fan operations, and economizer operation.
Compressor Module (IU3 IntelliPak II / 1U49 IntelliPak I)
(compressor control, head pressure control, evaporative condensing)The SCM/MCM module upon receiving a request
for mechanical cooling staging from the RTM, energizes the appropriate compressors. It provides protection of the
refrigerant circuit through feedback information it receives from various protection devices. It provides the necessary
sensor interface to provide both air-cooled and water-cooled condenser head-pressure control.
Heat Module (1U6 IntelliPak II / 1U50 IntelliPak I)
(staged heat, modulating heat, air-handler chill water valve control)The HEAT module, directs the unit’s heater to stage
up, down, or modulate to bring the controlled temperature to within the applicable heating setpoint. Chill water valve
control is handled by the modulating output and is coordinated with the heat control to insure proper cooling and heating
operation.
Exhaust/Comparative Enthalpy Module (1U5 IntelliPak II / 1U52 IntelliPak I)
(Statitrac building pressure control, comparative enthalpy)The ECEM receives data from the return air humidity sensor,
the return air temperature sensor, and the return air space pressure transducer to control the economizer,exhaust fan and
the exhaust dampers to maintain set space pressure.
Ventilation Control Module (7U14 IntelliPak II / 3U218 IntelliPak I)
(TRAQ dampers, DCV, outdoor air preheat)The VCM receives data from two velocity pressure sensors associated with
front and backTRAQ assemblies to measure fresh air flow entering the unit.These measurements are converted to CFM
and added to give total fresh air flow. This value can be used for monitoring purposes, to maintain flow to a minimum
fresh air flow Setpoint, or to maintain appropriate CO2 levels in the controlled space using its space CO2 sensor input and
the DCV feature.WithoutTRAQ assemblies installed theVCM can use DCV and the CO2 sensor input to control OA Damper
minimum position to maintain CO2 levels in the space. A preheat control relay output is also provided on this module to
maintain tempered outdoor air during ventilation using the VCM AuxiliaryTemperature input.The preheat unit is usersupplied.
Multi Purpose Module (1U9 IntelliPak II / 1U105 IntelliPak I)
(return fan, energy recovery wheel, evaporative condensing)The MPM supports the function of return plenum pressure
control by providing inputs for measuring return plenum pressure, calibrating that reading, and providing an output to
control the return fan speed (if variable speed configured) in response to control algorithm requests. EnergyWheel control
along with bypass damper control, and interface to the saturated condensing pressure sensors for evaporative
condensing head-pressure control.
Modulating Dehumidification Module (1U15 IntelliPak II / 1U107 IntelliPak I)
(dehumidification hot gas reheat)The MDM supports specific control inputs and outputs for modulating dehumidification
control including modulating reheat and cooling valve control as well as the reheat pumpout coil relay output.
Generic Building Automation System Module (1U10 GBAS(0-5VDC) / 1U11 GBAS(0-10VDC)
IntelliPak II) or (1U51 – GBAS(0-5VDC)/(0-10VDC) IntelliPak I)
(interface to third party BAS controls)The GBAS modules allows a non-Trane building control system to communicate
with the unit and accepts external Setpoints in form of analog inputs (0 - 5V or 0 - 10V depending on the module selected)
and a binary Input for demand limit. Five (5) binary outputs are available on 0 - 5 V modules. One (1) binary output and
four (4) analog outputs are available on the 0 - 10 V modules. Refer to the “Field Installed Control Wiring” section of the
RT-SVP07D-EN9
Commonly Used Acronyms
Unit Installation, Operation, Maintenance Manual (IOM) for the control wiring to the GBAS module and the various desired
Setpoints with the corresponding DC voltage inputs.
Ventilation Override Module (1U8 IntelliPak II / 1U53 IntelliPak I)
(special ventilation unit operation)The VOM module provides the necessary I/O interface to third party customer controls
and allows specific override operation of the unit’s air handling functions such as space pressurization, exhaust, purge,
unit off, etc.
Variable Speed Module (1U123 IntelliPak I)
(variable speed compressor operation) The VSM module provides the necessary I/O interface to control
variable speed compressor drives.
Interprocessor Communications Bridge (1U12 IntelliPak II / 1U55 IntelliPak I)
(communications isolation for remote human interface, external IPC wiring)The IPCB module expands communications
from the unit UCM network to a Remote Human Interface Panel. DIP switch settings on the IPCB module for this application
should be; Switches 1 and 2 “Off”, Switch 3 “On”.This module is used to isolate the unit communications bus from the
outside wiring, and any potential wiring faults that may occur.
BACnet®Communication Interface Module (1U66 IntelliPak II / 1U104
IntelliPak I)
(used on units withTrane ICS or 3rd party Building Automation Systems)The BCI module expands communications from
the unit UCM network to aTraneTracer Summit, or a 3rd party building automation system that utilizes BACnet, and allows
external Setpoint and configuration adjustment and monitoring of status and diagnostics.
Lontalk®Communication Interface Module (1U7 IntelliPak II / 1U65 IntelliPak I)
(used on units withTrane ICS or 3rd party Building Automation Systems)The LCI module expands communications from
the unit UCM network to aTraneTracer Summit, or a 3rd party building automation system that utilizes LonTalk, and allows
external Setpoint and configuration adjustment and monitoring of status and diagnostics.
(standard on all units) The LHI and RHI (Local and Remote Human Interface) share a similar keypad which is illustrated,
see Figure 1. Human Interface Module" on page 11. This device enables the customer, building owner, or contractor, to
communicate to the Rooftop unit the necessary parameters for unit operation such as cooling and heating Setpoints,
demand limiting, ventilation override modes, etc
The local (unit mounted) Human Interface and the Remote Human Interface Panel functions are identical, except for
Service mode which is not available on the Remote Human Interface Panel.
The local HI Module is located in the unit’s main control panel. A small door located in the unit’s control panel door allows
access to the HI Module’s keypad and display window.
There is a 2 line by 40 character LCD screen which provides status information for the various unit functions as well as
menus used to set or modify the operating parameters.There is a 16 key keypad adjacent to the LCD screen, which allows
the operator to scroll through the various menus and make adjustments to the setpoints, etc.
The LCD screen has a backlight that makes the information easier to read.The light will go out if no keys are pressed for
30 minutes. If it goes out, simply press the Status key.
The information displayed in the LCD window will be top-level status information unless the operator initiates other
displays.
At power-up, the Human Interface LCD will display one of four initial screens illustrated in the “General Status” section.
10RT-SVP07D-EN
Figure 1.Human Interface Module
Commonly Used Acronyms
Menu Keys
The six main menu keys illustrated in Figure 2. Human Interface Keypad,(Status, Setpoints, Setup, Configuration,
Diagnostics, and Service Mode) are used to bring up the various interactive menus where the user inputs and accesses
unit operating data. Pressing these keys will display the initial screen for the menu designated by the key’s name. The
following information describes the keys and their functions when viewing the various menus.
Note:
1. If no key is pressed for 30 minutes while the LCD is displaying a menu screen, it will revert back to the unit operating
status screen.
Status Key
Pressing the Status key causes the LCD to display the operating status screen; i.e. “On”, “Unit Stop”, “External Stop”,
“Emergency Stop”,“Service Mode”. Pressing the Next key allows the operator to scroll through the screens which provide
information such as air and refrigerant temperatures, humidity levels, fan operation, compressor operation, heater
operation, economizer positioning, exhaust operation, as well as heating, cooling, and compressor lockout setpoints.
Pressing the Status key while viewing any of the data screens will cause the LCD to go back to the operating status screen.
RT-SVP07D-EN11
Commonly Used Acronyms
Setpoints Key
Pressing the Setpoints key will cause the LCD screen to display the first of the setpoint screens where the operator will
designate default temperature and pressure setpoints. While scrolling through the setpoint screens, pressing this key
again will cause the LCD to display the first setpoint screen.
Diagnostics Key
Pressing the Diagnostics key at any time will allow the operator to view any active unit diagnostics, or 20 of the most
recently logged unit diagnostics. The LCD screen will display one of the diagnostic screens (depending on which
diagnostic, if any, is present). If no key is pressed for 30 minutes while the screen is displaying diagnostic information,
it will revert back to the operating status display.
Configuration Key
Pressing the Configuration key will cause the LCD screen to display the first of the configuration screens where the
operator will designate unit configuration data such as unit type, capacity, system control, etc.
This information was programmed at the factory. Pressing the configuration key at any level in the configuration menu
will display the first configuration screen.
Note:
1. This key should be used if the unit’s configuration data is lost or new options are added in the field, and to view current
configuration.
2. The Stop key must be pressed prior to making any changes under the Configuration menu.
Setup Key
Pressing the Setup key will cause the LCD screen to display screens where the operator will designate various operating
parameters such as temperature and pressure ranges, limits, percentages, setpoint source selections, and sensor input
definitions for the control of the rooftop unit’s various operating modes. Pressing the Setup key at any level in the setup
menu will display the first setup screen.
Service Mode Key
Pressing the Service Mode key causes the LCD to display the first of the service test mode screens showing various unit
components which may be turned on or off for the particular test being performed. Once the status of these components
is designated, the LCD will display screens that allow the operator to designate the TEST START time delay for each test.
Data Manipulation Keys
The six data manipulation keys illustrated in Figure 2. Human Interface Keypad" on page 14, (Enter, Cancel, + (Plus), -
(Minus), Previous, and Next are used to modify the data within the screens (change values, move the cursor, confirm
choices)
Enter Key
The Enter key will confirm the new values that were designated by pressing the + (Plus)or- (Minus) keys at all edit points.
When viewing status and diagnostics screens, it has no function.
Cancel Key
After changing data, at an editable screen, but before confirming it with the Enter key, pressing the Cancel key will return
the data to its previous value.This key shall also function to clear active diagnostics.
+ (Plus) Key
When viewing a setpoint screen, this key will increase the value of the displayed item per the units selected.When working
with a status menu, it will add the current status display to the CUSTOM MENU. When viewing setup, or service test
screens, it will proceed forward though all the selections of that menu item, increase setpoints, toggle choices OFF to ON,
DISABLED to ENABLED.
12RT-SVP07D-EN
Unit Operation Keys
- (Minus) Key
When viewing a setpoint screen, this key will decrease the value of the displayed item per the units selected. When
working with a CUSTOM MENU, it will delete the current selected display. When viewing setup, or service test screens,
it will proceed backwards though all the selections of that menu item, decrease setpoints, toggle choices ON to OFF,
ENABLED to DISABLED.
Next Key
Pressing the Next key causes the LCD to scroll forward through the various displays for each menu. At displays with
multiple edit points it moves the cursor forward from one edit point to another.
Previous Key
Pressing the Previous key causes the LCD to scroll backward through the various displays for each menu. At displays with
multiple edit points, it moves the cursor backward from one edit point to another.
Unit Operation Keys
The four unit operation keys (Auto, Stop,Test Start, Custom) are used to control and monitor the unit in normal
operating mode, and also to initiate an active unit service test event.
Auto Key
Pressing the Auto key at any time will cause the display to go to the top level status display and, if the unit is shutdown,
will cause the unit to begin operation in the appropriate mode no matter what level in the menu structure is currently being
displayed. If the current display is an editable display, the Auto key will confirm the desired edit point similar to the Enter
key.
Stop Key
Pressing the Stop key will cause the unit to transition to the stop state. If the current display is editable, pressing the Stop
key will cancel the desired edit similar to the Cancel key. Prior to making any changes to the configuration menu screens,
the Stop key must be pressed.
Test Start Key (Service Test Mode Start)
Pressing theTest Start key while viewing any screen in the Service Mode Menu will start the service test. Pressing this
key while displaying any screen other than the Service Mode Menu will not start the service test, and has no other function.
Custom Key
Pressing the Custom key will change the display to the Custom Menu.This menu is simply a status menu that contains
screens that the user monitors most frequently.The custom menu can only contain five status screens.To create the
custom menu, press the Status key, followed by the Next key (this brings up the initial status screen). If you want to add
this screen to the custom menu, press the + (Plus) key, if not, press the Next key again until a status screen appears that
you would like to add to the custom menu. Pressing the + (Plus) key while viewing any of the various status screens will
add that screen to the custom menu. Once the custom menu is programmed it can be accessed by pressing the Custom
key.To remove a status screen from the custom menu, press the Custom key, then press the Next key until the status
screen that you want to remove appears, then press the - (Minus) key.
General Status Display
Anytime the rooftop unit is powered up, or the Status,Auto,orStop keys are pressed, the unit mounted Human Interface
will display one of the following general status display screens.The operator will then be able to enter keystrokes which
will allow him to navigate through a set of menus and submenus in order to provide/access various monitoring, setup,
RT-SVP07D-EN13
General Status Display
and configuration information. The Human Interface will not display screens or parts of screens for which the unit is not
configured.
Figure 2. Human Interface Keypad
14RT-SVP07D-EN
General Status Display
Unit “Off” or “Stopped”
If at power up the unit is not running, the following display will appear on the Human Interface LCD screen. When this
screen is being displayed, the only functional keys are the six menu keys (Status, Setpoints, Diagnostics, Setup,
Configuration, and Service Mode), the Auto key, the Custom key, and the Stop key.
Stop by NetworkSupply Fan ON
InitializingDiagnostics
Top Right Field:
Unit Off
Unit Stopped
External Stop
Emergency Stop
Stop by Network
Unit Starting
Service Mode Off
Bottom Left Field:
(blank)
Shutdown
Initializing
Freeze Avoidance
Active
Supply Fan OFF
Supply Fan ON
Bottom Right Field:
(blank)
(Diagnostics)
Used With: Top Status Display
(Shown when unit is off or stopped)
Possible Values:
[see field descriptions at left]Top Left Field:
Unit “On”
If the unit has entered an operating state (running), the following display will appear on the Human Interface LCD screen.
When this screen is being displayed, the only functional keys are the six menu keys (Status, Setpoints, Diagnostics,
Setup, Configuration, and Service Mode), the Auto key, the Custom key, and the Stop key.
VVDA OA Flow380.0 CCFM Supply Fan ON
Occupied Cool 2 Diagnostics
Top Right Field:
Supply Fan ON
Supply Fan OFF
CVZT
VVDA
CVDA
VVZT
Top Middle Field:
(blank)
OA Flow 0 to 500
CCFM
Freeze Avoidance
Used With: Top Status Display
(Shown when unit is on)
Possible Values:
[see field descriptions at left]Top Left Field:
(blank)
Heat 1 to 6
Cool 1 to 4
OA Dmpr 0 to 100 %
Dehumid
Purge
Humidify
SA Fan 0 to 100%
Bottom Right Field:
(blank)
Diagnostics
General Status Display
“Emergency Override” Active
If the unit has entered an Emergency Override mode of operation, one of the following displays will appear on the Human
Interface LCD screen.
Ventilation Override Mode
PRESSURIZE Diagnostics
Used With: LCI or BCI Options
Top Left Field:
Top Right Field: (blank)
Bottom Left Field:
PRESSUREIZE
DEPRESSURIZE
PURGE
SHUTDOWN
FIRE
Bottom Right Field:
Diagnostics (Trouble Indicator)
(blank)
“VOM” Active
If at power up the unit is running and has entered a Ventilation Override mode of operation, the following display will
appear on the Human Interface LCD screen.
Ventilation Override Mode A
Diagnostics
Used With: VOM Option
Possible Values:
Top Right Field: A, B, C, D, E, OFF
Bottom Left Field:
(blank)
Bottom Right Field:
Diagnostics (Trouble Indicator)
(blank)
“No Configuration” Condition
If at power up the unit has not been programmed with the necessary configuration data for normal unit operation, the
following display will appear on the Human Interface LCD screen.When this screen is being displayed, the only functional
keyistheConfiguration key.
Note: This screen will only appear when the RTM has been field replaced. Refer to the Configuration Menu section.
NO CONFIGURATION PRESENT
Used With: All Units
PRESS CONFIGURATION KEY
16RT-SVP07D-EN
General Status Display
Factory Presets
The UCM controlled unit has many operating functions which are preset at the factory, but may be modified to meet the
unique requirements of each job. The following list in Table 2, identifies each of the unit’s adjustable functions and the
value assigned to it. If these factory presets match the application’srequirements, simply press the Auto key at the Human
Interface module to begin unit operation (after completing the Pre-Start and Start-Up procedures in the Installation,
Operation, and Maintenance manual). If the application requires different settings, turn to the listed page beside the
function, press the designated function menu key, then press and hold the Next or Previous key until its screen appears
on the LCD. Once the proper screen appears, simply follow the programming instructions given below the applicable
screen in this manual.
Note: Listed items availability is dependent on unit configuration.)
Table 2.Factory Presets List (Note: Listed Items availability is dependent on unit configuration.
To adjust
Adjustable FunctionFactory PresetChanged To
General Function
Unit Address (Comm3/Comm4only)1
System ModeAuto___________Setup
Supply Fan ModeAuto___________Setup
Unit Start Delay0___________Setup
Single Zone VAV Econ ControlEnabled___________Setup
Single Zone VAV Heat ControlDisabled___________Setup
Minimum Outside Air Flow RateHi Default___________Setpoints
Supply Air PressureHi Default___________Setpoints
Space PressureHi Default___________Setpoints
(a) Field replacement of control modules requires proper human interface setup to insure unit performance
press...
Password Protected Screens
Some of the operating displays on the Human Interface LCD screens and require a password to change.The following
screens display the various programming sections that require a password in order to view or to modify the preset
operating parameters. The password for each screen is a different series of + (Plus)or- (Minus) key strokes in a
predefined sequence. Shown below are the password protected screens, and the passwords for accessing them.
The following screens display the various programming sections that require a specific password to be entered by a
qualified operator in order to modify the operating parameters. The following screen will appear if the password is not
entered within approximately 15 seconds.
Password Entry Time Limit Exceeded
Configuration is Password Protected
Please Enter Password: __________
1. Press the + or - keys in this sequence ( + - - - ) to access
this restricted screen.
2. Press the Enter key to confirm the password and enter the
menu.
Ventilation Override Mode _______
Enter Password to Lock Definition:
24RT-SVP07D-EN
1. Press the + or - keys in this sequence ( + - - + ) to lock each
VOM Mode.
2. Press the Enter key to confirm the password and Lock the
definitions.
Diagnostic Reset is Password Protected
Please Enter Password: ____________
1. Press the + or - keys in this sequence ( - + + ) to access this
restricted screen.
2. Press the Enter key to confirm the diagnostic reset.
Diagnostic Log is Password Protected
Please Enter Password: __________
General Status Display
1. Press the + or - keys in this sequence ( - + + -) to access this
restricted screen.
2. Press the Enter key to confirm clearing the diagnostic log.
Turning Parameters are Password Protected
Please Enter Password: __________
1. Contact Clarksville Service for Password.
Navigating the Human Interface Screens
In the following sections the user will be presented with a number of screens and submenus that follow the selection of
a main menu key entry (Status, Setpoints, Diagnostics, Setup, Configuration, Service Mode and Custom). When
a submenu is presented, it may be accessed by pressing the Enter key or, skipped entirely by pressing the Next key. Upon
entering a menu, or submenu, the user will navigate through the desired selections by pressing the Next and Previous
keys.The most probable keystroke would be to press Next to cycle forward through the screens as shown in these
sections, but pressing the Previous key may be desirable to review previous screens or to quickly navigate to the end
of a menu.
Once the user has navigated to a desired selection, the + (Plus) and - (Minus) keys will be pressed to cycle through the
selection range of the menu item.The range of each item selected is dependent upon the item and is listed for each screen
in the following sections. For instance, if the user has selected a Configuration item typical choices displayed with each
+ (Plus)or- (Minus) keystroke may be Installed or Not Installed.IfaSetup menu were accessed a choice may be Enabled
or Disabled.Temperature Setpoints will typically cycle through their range one degree at a time, and so on. Similar to
pressing the Previous key above, pressing the - (Minus) key to decrement through the range may provide quick access
to the desired value.
Once a change has been made to the desired menu item the user will press the Enter key to accept the change, or press
the Cancel key to ignore the modification and return the displayed item to its original value.
RT-SVP07D-EN25
STATUS Menu
The status menu is used to view various operating conditions such as temperatures, pressures and humidity levels. It is
also used to view unit component status such as fan, compressor, heater, and economizer operation, as well as setpoint
status.
The screens shown in this section are for example only. Pressing the + (Plus) key while viewing any of the status display
screens will add that screen to the Custom menu. While viewing the Custom menu, a screen can be removed by pressing
the – (Minus) key.
When a status screen is displayed for 30 minutes without a key being pressed, the LCD screen will revert to the general
operating status display. If this happens, press the Status key again to return to the status menu.The following are
examples of status screens that may be viewed by pressing the Status key.
Note:
1. Many of the screens displayed in this section are applicable only for the options that are installed in the unit
and may not be visible on your unit.
2. The range for some selections depend upon a sensor connected to a control module. Normal ranges
expected will be listed for each screen shown. If the sensor is operating outside its normal limits, or has
failed, “+ERR” will appear if out of range high, and “-ERR” if it is out of range low.
Press the Status key to begin viewing the status screens.
TOP LEVEL STATUS SCREEN
VVDA OA Flow 350.0 CCFM Supply Fan ON
Occupied Cool 4 Diagnostics
• Press Next/Previous keys to navigate.
GENERAL SYSTEM STATUS SUBMENU SCREENS
General System Status Submenu
Press ENTER to View Data in this Submenu
• Press Next key to skip this Submenu.
Active Unit Control Source: LOCAL
Active Cluster Member Role: STANDALONE
RTM Supply Fan Relay: OFF
RTM Supply Airflow Proving: FLOW
Note: One of the three following screens will be shown based on
supply air pressure options.
Used With: All Units
Used With: BAS Interface Installed
Possible Values:
Fan Relay: ON, OFF
Airflow Proving: FLOW, NO FLOW• Press Next/Previous keys to navigate.
26RT-SVP07D-EN
STATUS Menu
Supply Fan IGV/VFD Target: 30%
Master’s Algorithm Command to All Units
OR
Supply Fan IGV/VFD Cmd Opening To 30 %
Active Supply Air Pressure 2.0 IWC
“Limited To” when shown indicates an active override.
OR
Active Supply Air Pressure 2.0 IWC
• Press Next/Previous keys to navigate.
Note: One of the three following screens will be shown based on
power exhaust options.
Exhaust Fan OFF
Used With: Clustered VVDA Units
Possible Values: 0 to 100%
Used With: VVDA Units
Possible Values:
Cmd: 0 to 100%
Press: 0.0 to 7.9 IWC“Opening To” and ”Closing To” indicate direction.
Used With: CVDA/CVZT Units
Possible Values: 0.0 to 7.9 IWC
Used With: Units w Power Exhaust w/o
Statitrac, w/o Return Fan
Possible Values: ON, OFF
OR
Exhaust Damper/VFD Target: 70 %
Master’s Algorithm Command to All Units
OR
Exhaust Fan ON Space Pressure 0.00 IWC
Exhaust Damper/VFD Opening To 32 %
“Opening To” and ”Closing To” indicates direction.
“Limited To” when shown indicates an active override.
• Press Next/Previous keys to navigate.
Note: One of the four following screens will be shown based on
heating type options.
Used With: Clustered, w/Statitrac, w/o
Return Fan Units
Possible Values: 0 to 100%
Used With: Units w/Statitrac, w/o
Return Fan
Possible Values:
Fan: ON, OFF
Pressure:
IPakI: -0.2 to 0.3 IWC
IPakII: -0.67 to 0.67 IWC
Damper/VFD: 0 to 100%
RT-SVP07D-EN27
STATUS Menu
Electric Heat: ENABLED
Stage: 6 K11: ON K12: ON K1: ON
“ENABLED” indicates heat is available.
“DISABLED” indicates heating is not allowed.
“LIMITED” indicates heating is available at reduced capacity.
OR
Gas Heat: ENABLED
Stage: 2 K11: ON K12: ON K1: ON
“ENABLED” indicates heat is available.
“DISABLED” indicates heating is not allowed.
“LIMITED” indicates heating is available at reduced capacity.
OR
Hydronic Heat: ENABLED
Valve Position: Opening To: 100 %
“ENABLED” indicates heat is available.
“DISABLED” indicates heating is not allowed.
“LIMITED” indicates heating is available at reduced capacity.
“Opening To” and ”Closing To” indicates direction.
Used With: Units w/Electric Heat
Possible Values:
Electric Heat:
ENABLED,
DISABLED By Setup,
LIMITED By Demand Limit
DISALBED By BAS/Network
Stage: 0,1,2,3,4,5,6
K*: ON, OFF
Used With: Units w/Staged Gas Heat
Possible Values:
Gas Heat:
ENABLED,
DISABLED By Setup,
LIMITED By Demand Limit
DISALBED By BAS/Network
Stage: 0,1,2
K*: ON, OFF
Used With: Units w/Hydronic Heat
Possible Values:
Hydronic Heat:
ENABLED,
DISABLED By Setup,
LIMITED By Demand Limit
DISABLED By Low Air Temp
DISALBED By BAS/Network
Position: 0 to 100%
OR
Mod Gas Heat: ENABLED
Valve Position: Opening To: 100 %
“ENABLED” indicates heat is available.
“DISABLED” indicates heating is not allowed.
“LIMITED” indicates heating is available at reduced capacity.
“Opening To” and ”Closing To” indicates direction.
• Press Next/Previous keys to navigate.
28RT-SVP07D-EN
Used With: Units w/Mod Gas Heat
Possible Values:
Mod Gas Heat:
ENABLED,
DISABLED By Setup,
LIMITED By Demand Limit
DISABLED By Low Air Temp
DISALBED By BAS/Network
Position: 0 to 100%
STATUS Menu
Chilled Water: ENABLED
Valve Position: Opening To 100 %
“ENABLED” indicates cooling is available.
“DISABLED” indicates cooling is not allowed.
“LIMITED” indicates cooling is available at reduced capacity.
“Opening To” and ”Closing To” indicates direction.
• Press Next/Previous keys to navigate.
Dehumidification Status: DISABLED
by Comfort Control Override is Active
Table 3.Dehumidification Lockout Sources
Value Displayed in Bottom FieldDisable Conditions
Used With: Air Handler Units w/Chilled
Water
Possible Values:
Chilled Water:
ENABLED,
DISABLED By Setup,
LIMITED By Demand Limit
DISABLED By Low Air Temp
DISALBED By BAS/Network
Position: 0 to 100%
Used With: Units w/Dehumidification
Top Line Possible Values: ENABLED,
DISABLED
Bottom line Possible Values:
When ENABLED is Shown:
(blank line)
When LOCKED is Shown:
[See “Table 3. Dehumidification
Lockout Sources” Below]
Disabled By Call for Cooling Demand Limit ........................ Compressors unavailable due to demand limit.
Disabled By Compressor Lockout Sources .......................... Required compressors are not available.
Disabled By Occ Dehumid Function Disable ....................... Occupied Dehumid. control is disabled.
Disabled By Dehumid Override Zone Temp High/Low .......... VVDA/CVDA critical zone temp is too high/low.
Disabled By OA Temperature Out Of Range ....................... Outdoor air temperature is out of range.
Disabled By Unocc Dehumid Function Disable..................... Unoccupied Dehumid. control is disabled.
Disabled By Comfort Control Override is Active................... Comfort cooling control has priority.
Disabled By Required Sensor Failure Condition ................... Sensor(s) for dehumid. control have failed.
Disabled By Sat Reheat Cond Temp Sensor Fail .................. Sensor for dehumid. control have failed.
Disabled By Reheat Head Pressure High Limit..................... Reheat circuit is experiencing high pressures.
Disabled By Condenser Coil Purge is Active ........................ Active purge mode temporary override.
Disabled By Comp Press Differential.................................. Excessive refrig. pressures across compressors.
• Press Next/Previous keys to navigate.
Humidification Status: ENABLED
Humidification is Active
• Press Next/Previous keys to navigate.
Used With: Units w/Humidification
Top Right Field: ENABLED, DISABLED
Bottom Field:
The following shown when DISABLED:
by Occ Humidification Function Disable
by Unocc Humid Function Disable
The following shown when ENABLED:
Humidification is Inactive
Humidification is Active
RT-SVP07D-EN29
STATUS Menu
End of Submenu (NEXT) to Enter STATUS
• Press Next/Previous keys to navigate.
COMPRESSOR STATUS SUBMENU SCREENS
Compressor Status Submenu
Press ENTER to View Data in This Submenu
• Press the Next key to skip this Submenu.
Note: Combinations of the following screens will be shown based on
unit cooling capacity option.
Compressor Relay K10 Locked
Disabled By Compressor Protection (MORE)
Note: There will be 2 screens shown for this configuration, one
screen for K10 and one for K11.
• Press Next/Previous keys to navigate.
OR
Compressor Relay K11 Locked
Disabled By Compressor Protection (MORE)
Note: There will be 4 screens shown for this configuration, one for
K11, one for K12*, one for K3, and one for K4*. See the following
replacement screen for K12 when a variable speed compressor is
installed on 40-70 ton units. K12 and K4 will show either Enabled
or Activated by Compressor Protection when the compressor is ON.
Important:
•*See the following replacement screen for K12 when a variable
speed compressor is installed on 40-70 ton units.
•*K12 and K4 will show either Enabled, or Activated by Compressor
Protection, when the compressor is ON.
Used With: Units w/DX Cooling
Used With: IPakI 20-30Ton DX Cooling
Possible Values:
Compressor Relay:
K10: 1
K11: 2
Top Right Field:
ON, OFF, LOCKED
Bottom Field:
When ON or OFF is Shown: ENABLED
When LOCKED is Shown:
[See “Table 4. Compressor Lockout
Sources" on page 32”]
Used With: IPakI 40-130Ton DX Cooling
Possible Values:
Compressor Relay:
K11: 1
K12: 2
K3: 3
K4: 4
Top Right Field:
ON, OFF, LOCKED
Bottom Field:
When ON or OFF is Shown: ENABLED
When LOCKED is Shown:
[See “Table 4. Compressor Lockout
Sources" on page 32”]
st
Compressor
nd
Compressor
st
Compressor
nd
Compressor
rd
Compressor
th
Compressor
• Press Next/Previous keys to navigate.
30RT-SVP07D-EN
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