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VAV-SVN03A-EN

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• areas near heat sources like equipment (appliances, computers, copiers,

etc.) or concealed pipes or chimneys

• dead spots behind doors, draperies, or in corners.

Mounting Standard and Digital Zone Temperature
Sensors

Zone temperature sensors consist of two basic pieces: the base and cover.
Externally adjustable versions have an external adjustment knob. To remove
the sensor cover from the base:

1

Note the position of the adjustment knob (if present).

2

Use a small screwdriver to gently pry the adjustment knob from the
cover.

3

Before mounting a zone temperature sensor, remove zone sensor cover
by easing the tip of a small screwdriver between the base and the cover.
Gently lift the top of the screwdriver up.  Do not force.

Follow these steps to replace the zone temperature sensor cover and (if
present) adjustment knob after mounting:

1

Align the cover with the sides of the base.

2

Press the cover toward the wall until it snaps into place.

3

Align the knob to the position noted prior to its removal.

4

Push the stem through the cover hole until the stem sits firmly in setpoint
potentiometer.

5

Turn the knob to assure that it rotates freely through the entire range of
temperature settings.

Wall Mount

With the cover removed, feed the control wires through the rectangular
opening in the base.  Follow these steps if mounting the sensor to a wall:

1

Assuring that the base is level, position the back of the base over the wire
entry in the wall.

2

Mark the centers of the two oblong mounting holes, then set aside the
base.

3

Drill a 3/16 in. diameter hole approximately 1 in. deep at the marked
locations.

4

Insert plastic anchors into the holes until they are firmly seated.

5

Feed the control wires through the base and fasten the base to the wall
with the supplied mounting screws.

6

Connect the control wires to the proper terminals on the temperature
sensor (See Figure 15).

7

Replace the sensor cover.

Junction Box Mount

1

With the cover removed, feed the control wires through the rectangular
opening in the base.

Mounting Standard and Digital Zone Temperature Sensors

Содержание VariTrac VAV-SVN03A-EN

Страница 1: ...Installation Manual VariTrac Central Control Panel June 2002 VAV SVN03A EN...

Страница 2: ...can result in civil damages and criminal penalties The terms of this license are included with the compact disk Please read them thoroughly Trane has tested the system described in this manual However...

Страница 3: ...nts 2 Related Literature 2 FCC Information 3 VariTrac and Delivered VAV Radio andTelevision Interference 3 VariTrac Changeover Bypass System 5 Overview 5 Central Control Panel 5 Unit Control Module UC...

Страница 4: ...ity Shutdown Input Wiring 18 Occupied Unoccupied Input Wiring 19 OutputWiring 19 Install the Bypass Dampers and Communicating Sensor Bypass Control Assembly 20 Install Bypass Dampers 20 Bypass Damper...

Страница 5: ...wn the System 44 UCM LEDs 44 Green LED 45 Yellow LED 45 Tests and Troubleshooting 47 Displayed Failures 47 Static Sensor Calibration Failure 47 Discharge AirTemperature Sensor Failure 47 Communication...

Страница 6: ...Occupancy Sensor 56 Operator Display 56 Getting Started 57 Installing the Central Control Panel 57 Install VariTrane VAVTerminal Units 57 Connect UCM Wiring 57 Set UCM DIP Switches 57 Installing ZoneT...

Страница 7: ...system components VariTrac Changeover Bypass System Overview A brief description of a typical VariTrac changeover bypass system Getting Started Pre installation and setup information Installing and C...

Страница 8: ...situation which if not avoided could result in serious injury or death CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury CAUTION Indicates...

Страница 9: ...for Class A computing devices in accordance with the specifications in Subpart J of Part 15 of FCC rules to provide reasonable protection against such interference in a commercial installation There i...

Страница 10: ...adiated EN55022 1998 Class B limit Conducted EN55022 1998 Class B limit EN61326 1 1997 A1 1998 EN61000 4 2 4 kV contact discharge 8 kV air discharge EN61000 4 3 3 V m EN61000 4 4 1 kV EN61000 4 5 1 kV...

Страница 11: ...system op tional UCM communication bus to the zone dampers and communicating sensor bypass damper control andTraneVoyager Reliatel rooftop unit binary outputs to heating cooling and fan of non Voyage...

Страница 12: ...ures up to 2 00 inches wg Communicating Sensor Bypass Control The Communicating Sensor Bypass Control is composed of an integrated UCM board static pressure and discharge air temperature sensors It di...

Страница 13: ...ervice model numbers determine product characteristics and are used when ordering replacement parts Each digit signifies product characteris tics See Figure 1 Figure 1 Service Model Number Description...

Страница 14: ...ations Link 2 cond Level 4 comm wire 24 Vac Sensor wiring Voyager or Reliatel TCI 3 Bypass Damper w connecting cable assembly Zone Sensor VariTrac Central Control Panel Communicating Sensor Bypass Con...

Страница 15: ...o i t a c i n u m m o C e b t s u m g n i r i w k n i l n o i t a c i n u m m o C r i a p d e d l e i h s d e t s i w t G W A 2 2 4 l e v e L r e p p o c d e n n i t d e d n a r t s h t i w e r i w e...

Страница 16: ...0 2 l a n o i t p o f o d a o l s u l p m u m i n i M A V r e m r o f s n a r t 2 s s a l C s t u p t u o t a e h d e r i u q e r t n e m n o r i v n E g n i t a r e p O F 0 2 1 o t F 2 3 n o n y t i...

Страница 17: ...o c t e e m t s u m e r i W t e e f 0 0 5 3 s i h t g n e l 1 e l b a T e e S s n o i t a c i f i c e p s e n a r T e r i W k n i L n o i t a c i n u m m o C s n o i t a c i f i c e p S Relay Board Bi...

Страница 18: ...f e l b a t i u S V 0 0 3 f o g n i t a r d e t s e g g u S d l e i h S d e d n a r t s a s u l p l i o f m u n i m u l a d e t r o p p u s r e t s e y l o p l l a r e v O g n i d n u o r g e t a t i...

Страница 19: ...ication link wiring Mount main module Install operator display optional Connecting modem devices IMPORTANT The CCP is designed to work with UCM III and IV VariTrac damper and VariTrane VAV controllers...

Страница 20: ...connector Mounting Requirements Location The VariTrac Central Control Panel should be mounted at a convenient level and located where it will be easily accessible If possible locate the CCP near the c...

Страница 21: ...e unit to making wiring connections and perform maintenance Figure 4 Dimensions forVariTrac Central Control Panel Components Front view Side view 8 75 in 22 38 cm 2 75 in 6 99 cm 10 25 in 26 04 cm Top...

Страница 22: ...y excess plastic Use a hack saw blade and carefully cut away the plastic Install VariTrac CCP Relay Board 1 Separate the main module and front panel from the termination module 2 Remove the relay boar...

Страница 23: ...ink Comm5 link Comm5 UCM Tracker Splice 2 1 4 3 3 A A B B A A B B Twisted pair shielded wire per Trane specifications Shield termination Earth ground Contact points Transformer Termination resistor Sh...

Страница 24: ...ac TB2 2 andTB2 3 ground should be 20 to 30 Vac IMPORTANT The 24 Vac power supplies must not be used to power any devices other than the VariTrac Central Control Panel This could result in malfunction...

Страница 25: ...s should enter the cabinet through the conduit entry holes shown in Figure 3 Output wiring connections at the VariTrac Central Control Panel are shown in Figure 7 The wire from the air conditioning un...

Страница 26: ...duct VariTrac dampers or supply duct branches should be installed downstream of bypass dampers The distance between bypass dampers and the communicating sensor bypass control should be two to three eq...

Страница 27: ...airflow direction when installing dampers A label for this is present on each damper assembly Mount the Communicating Sensor Bypass Control Figure 8 Mounting the Bypass Damper Communicating Sensor Byp...

Страница 28: ...ientation only Refer to the diagram and connect as follows 1 Plug the red actuator connector brom the BYPS damper onto the master damper UCM socket ACT as shown in Figure 9 2 If two bypass dampers are...

Страница 29: ...s the ends of the damper when hanging straps are used to avoid interference with the rotating damper A label attached to the dampers indicates the acceptable areas for mounting screws IMPORTANT It is...

Страница 30: ...ts add the power consumption of local heat to the circuit board power CAUTION Use wires with copper conductors only The use of aluminum or other types of wire may result in overheating and equipment d...

Страница 31: ...Panel must a unique address No two devices of the same type can have the same address Table 2 lists the address settings for UCM DIP switches connected to the VariTrac Central Control Panel IMPORTANT...

Страница 32: ...N ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON ON Off 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26...

Страница 33: ...ter damper actuator s red connector to the spare connector socket pigtailed on the BYPS damper cable assembly 4 If cable assembly needs to be extended cut and splice additional wire on the BYPS damper...

Страница 34: ...l display adjustable setpoint night setpoint override button cancel button and communications jack Figure 14 Zone Sensor Options Location Proper temperature sensor location is crucial to occupant comf...

Страница 35: ...into place 3 Align the knob to the position noted prior to its removal 4 Push the stem through the cover hole until the stem sits firmly in setpoint potentiometer 5 Turn the knob to assure that it ro...

Страница 36: ...O r o s n e S e n o Z f o r e b m u N d e r i u q e R s e r i W 1 y l n o r o s n e S 2 t n i o p t e s e l b a t s u j d a h t i w r o s n e S 3 e d i r r e v o k c a b t e s t h g i n h t i w r o s...

Страница 37: ...For wire lengths less than 75 feet an 18 gage 5 conductor cable may be used For wire lengths greater than 75 feet use 18 gage 2 conductor cable for the power wiring TB1 TB1 and 18 gage 3 conductor ca...

Страница 38: ...ctions between lengths of link wiring should be soldered and taped Wire nuts are not acceptable CAUTION Connecting the communication link with reversed polarity will lead to system malfunction and pos...

Страница 39: ...rs UCM Dampers UCM Dampers UCM Dampers UCM Dampers EachVoyager Reliatel Rooftop requires aTrane communications interface TCI board for connection to the VariTrac Central Control Panel communication li...

Страница 40: ...roller splice shield wire and tape back to prevent grounding VariTrac COMM 4 COMM 5 Zone UCM Address 2 Zone UCM Address 1 Communicating Sensor Bypass Control Assembly Address 33 Address Switch DDC UCM...

Страница 41: ...nk Wiring Voyager UPC Unit Control Panel Comm Termination Details for Voyager RTU TCI V 1 2 Figure Notes 1 All dip switches off 2 Comm board to non isolated Comm3 or Comm4 option VariTrac Communicatio...

Страница 42: ...tches off 2 Comm board to non isolated Comm3 or Comm4 option Mount Main Module After mounting and wiring the wiring base attach the main module NOTE It is not necessary to turn off 24 Vac power to the...

Страница 43: ...a few seconds Install Operator Display optional An operator display is available to provide monitoring and control of VariTrac systems and UCM zones from one central location The display provides a VG...

Страница 44: ...to the module Push the top of the display module toward the main module until it snaps into place If 24 Vac is applied the operator will turn on and display data Connecting Modem Devices Remote commun...

Страница 45: ...Software to CCP The VariTrac PC Software provides a graphic user interface for VariTrac and Delivered VAV systems Advanced status and set up information are avail able via a PC serial port connection...

Страница 46: ...l Panel to PC serial port connec tions Connect RJ 12 to 9 pin female adapter To PC serial port RJ 12 port for PC direct connection bottom side RJ 12 cable PN 35914262 PN 35914260 Termination module bo...

Страница 47: ...AC Power Wiring o Field installed AC power wiring complies with all applicable codes o 24 Vac line from dedicated Class 2 transformer connected to VariTrac Central Control Panel atTB2 o Voltage measur...

Страница 48: ...nt between 20 Vac and 28 Vac o Ensure that the sensor is properly terminated o If optional local heat is being used confirm wiring per appropriate diagram Communication Link Wiring o Field installed c...

Страница 49: ...e CCP and that the air conditioning unit is operational UCM Verify that the damper is installed with the drive shaft horizontal See the Installation and Wiring section of this manual for more details...

Страница 50: ...s High flow static sensor voltage is taken and stored in the CCP The bypass damper is then driven to 50 percent and released The UCMs are released from their MAX flow position UCMs are scanned and hea...

Страница 51: ...e D Yellow LED N O y t i r a l o p k n i l n o i t a c i n u m m o c d e s r e v e R F F O y t i v i t c a k n i l n o i t a c i n u m m o c o N d r a o b e v i t c e f e d r o W O L S K N I L B M C U...

Страница 52: ...VAV SVN03A EN 46 System Start Up and Checkout...

Страница 53: ...start up calibration sequence Design static pressure value is too low Bypass damper s are operating incorrectly Discharge AirTemperature Sensor Failure If the discharge air temperature sensor fails t...

Страница 54: ...e should be between 0 20 Vdc and 0 45 Vdc Record the zero flow voltage 3 Wait approximately 4 minutes after power up for the system fan to start Read the transducer output voltage again across J3 1 gr...

Страница 55: ...6 6 5 6 6 3 6 7 1 6 7 9 5 8 7 5 8 5 5 9 3 5 9 1 5 2 6 9 4 1 5 0 6 4 1 7 5 2 4 1 8 1 9 3 1 8 8 5 3 1 6 6 2 3 1 2 5 6 2 1 6 4 3 2 1 7 4 3 2 1 6 5 0 2 1 0 7 1 7 2 7 3 7 4 7 5 7 6 7 7 7 8 7 9 7 0 0 5 1 8...

Страница 56: ...nputTests With the system in the occupied mode Jump the priority shutdown input TB2 5 andTB2 6 with a wire The system goes into priority shutdown Remove the jumper on the priority shutdown input Norma...

Страница 57: ...nd 0 7 Vdc the static pressure failure clears Binary OutputTest The relay board binary outputs may be manually controlled from either the operator display or the PC software Great care must be taken w...

Страница 58: ...VAV SVN03A EN 52 Tests andTroubleshooting...

Страница 59: ...em It is responsible for coordinating the actions of the VAV rooftop and the actions of the VAV boxes with each other to meet the comfort requirements of the zones As in any other application the Voya...

Страница 60: ...nfiguration Legend Communications Link 2 cond Level 4 comm wire 24 Vac Sensor wiring 24 Vac Transformer VariTrac Central Control Panel w Operator Display VAV Terminal Unit Zone Sensor Voyager Commerci...

Страница 61: ...riTrane units are supplied with microprocessor based DDC controls Factory installed controls are required with all types of terminal units VariTrane VAVTerminal UnitTypes Single Duct Single duct termi...

Страница 62: ...ensor configurations are available sensor only sensor with adjustable setpoint and communications jack sensor with night setback override button cancel button and communica tions jack sensor with adju...

Страница 63: ...fer to Connect UCM Wiring in this manual and the appropriate installa tion instructions shipped with the VariTrane air terminal devices Set UCM DIP Switches Refer to Set UCM DIP Switches andTable 2 in...

Страница 64: ...d be spliced with the shield from the next section of communication link wiring at every junction Tape each splice to prevent any contact between the shield and ground The shield should be cut and tap...

Страница 65: ...Terminal Unit Central Control Panel VariTrac with Operator Display Each Voyager VAV Rooftop requires aTrane communications interface TCI board for connection to the VariTrac Central Control Panel comm...

Страница 66: ...2 A continuous shield is required At each unit controller splice shield wire and tape back to prevent grounding VariTrac COMM 4 COMM 5 VAV UCM Address 3 VAV UCM Address 2 VAV UCM Address 1 Address Swi...

Страница 67: ...nk Wiring Voyager UPC Unit Control Panel Comm Termination Details for Voyager RTU TCI V 1 2 Figure Notes 1 All dip switches off 2 Comm board to non isolated Comm3 or Comm4 option VariTrac Communicatio...

Страница 68: ...VAV SVN03A EN 62 Getting Started...

Страница 69: ...with proper clearances AC Power Wiring o Field installed AC power wiring complies with all applicable codes o 24 Vac line from dedicated Class 2 transformer connected to VariTrac Central Control Panel...

Страница 70: ...ication link wiring is properly terminated at each zone damper UCM on terminalsTB2 1 throughTB2 6 Ensure that polarity has been maintained through the link o Communication link wire shields spliced at...

Страница 71: ...duct 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 referr...

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