Installer's Guide Programmable Zone Sensor for Constant ...

1 Installers GuideProgrammable Zone Sensor for Constant Volume (CV) Unitsand Heat Pump (HP) UnitsOctober 2004 ACC-SVN28A-EN18-HD60D29-5 Models:Used With:BAYSENS019C3 - 25 Ton Packaged Heat/Cool UnitsASYSTAT666C3 - 20 Ton Packaged Heat Pump - 50 Ton Packaged Rooftop Units20 - 130 Ton Packaged Rooftop Units20 - 80 Ton Commercial Self Contained Units2 ACC-SVN28A-ENTable of ContentsIcon Description .. 3 Overview of Manual .. 4 Kit Inspection .. 4 Sensor Mounting .. 5 Conductors and Terminal Identification .. 5 Wiring The Sub Base .. 6 Initial Power-Up .. 7 Option Menu .. 8 Programming Menu .. 11 Temporary Override Menu .. 13 Zone Sensor Status Indicators .. 15 Battery Replacement .. 15 Trouble Shooting .. 153 ACC-SVN28 AENG eneral InformationIcon Description1 - The four periods of the day used during - The seven days of the week used during programming and in the Normal Run State to indicate the current - Four digits used to display the time of day in the Normal Run State.

2 Also used in the Programming Menu, TemporaryOverride Menu, and the Options Menu. The Colon (:) blinks in the Normal Run State to indicate communication to the UCP - AM and PM used to display the time of day (Morning/Evening) in the Normal Run State when using the 12 hour time - Days and Hours are used in the Temporary Override Menu to program the override time - Displayed and Blinks during Temporary Override - Displayed in the Temporary Override Programming - Programmable in the Programming Menu and is displayed in the Normal Run State to indicate the current Zone - When displayed, indicates the keypad is locked out.:To lock or unlock the keypad when this icon is shown, press and hold the positive (+) and negative (-) side of the TIME - Emergency Heat selection available when used with a heatpump application and programmed in the Options - Displays the FAN operation - Displayed in the Normal Run State when the Zone Temperature is programmed to be displayed in the Options - Displayed only in the Options - Two digits used to display the Zone Temperature when programmed in the Options - Indicates unit operating status in the Normal Run State and is used in the Programming Menu and Temporary OverrideMenu to set the desired operating - Displayed in the Programming Menu and Temporary Override Menu to indicate the desired operating - Displayed and Blinks when the programmed Check Filter time has - Displayed and Blinks when a Cooling Failure has - Displayed during the unit self-test - Displayed and Blinks during Service Status and if Fan Failure - Displayed and Blinks when a Heating

3 Failure has - Displays the System operation InformationOverview of ManualNote: One copy of this document ships inside eachProgrammable Zone Sensor kit and is customerproperty. The unit s maintenance personnel mustretain booklet describes step-by-step instructions for install-ing and programming the Programmable Zone carefully reviewing the information within this manualand following the instructions, the risk of improper opera-tion and/or component damage will be equipment failure occur, contact a qualified serviceorganization with qualified, experienced HVAC techniciansto properly diagnose and repair this : The procedures discussed in this manualshould only be performed by qualified, experiencedHVAC InspectionUpon receipt of the kit, immediately note;[ ] Any visible damage to the exterior shipping any damage on the shipping the type and extent of the damage on the bill oflading before signing.

4 [ ] Unpack the contents and carefully inspect it for obviousdamage due to shipment.[ ] If concealed damage has occurred, notify the carrier sterminal of the damage immediately by phone and bymail. Concealed damage must be reported within 15days.[ ] Do not remove damaged material from the receiving lo-cation. Take photos of the damage, if possible. Theowner must provide reasonable evidence that the dam-age did not occur after delivery.[ ] Check for material shortages. Within the package youshould find;1 - Sensor Module,1 Package of mounting hardware, and;1 - Installation and operation the Parts Center nearest your area should there beany damaged or missing 20 - 130 Ton IntelliPak:In order for setpoints provided by the ZSM to berecognized by the unit, setpoint source selections at theHuman Interface must be set to NSB SETPOINT Panel w/ NSB - BAYSENS019 CThis 7 day Programmable Sensor features 2,3 or 4 periods forOccupied or Unoccupied programming per day.

5 If the poweris interrupted, the program is retained in permanent power is off for an extended period of time, only the clockand day may have to be Programmable Sensor is compatible for use with UCPmirco control, ReliatelTM mirco control or IntelliPakTM Zone Sensor allows selection of four system modes(Heat, Cool, Auto, and Off), two fan modes (On and Auto). Ithas dual temperature selection with Programmable start occupied cooling set point ranges between 45 and 98degrees Fahrenheit. The heating set point ranges between43 and 96 degrees liquid crystal display (LCD) displays zone temperature,temperature set points, day of the week, time, and opera-tional mode Option Menu is used to enable or disable applicablefunctions, ; Morning Warm-up, Economizer minimum posi-tion override during unoccupied status, Fahrenheit or Centi-grade, Supply air tempering, Remote zone temperature sen-sor, 12/24 hour time display, Smart fan, and Computed an occupied period, an auxiliary relay rated for @ 30 volts AC with one set of single pole double throwcontacts is Mounting1.

6 Mounting Choose a location on an interior wall near the return airgrille, approximately five feet above floor level, whereair circulates freely and is of average temperature forthe Avoid areas such as:behind doors;on outside walls, or any walls with unconditionedareas behind the Sensor ;in direct sunlight, or any source of radiant heat thatcould affect the temperature measurements;in line with the discharge air from the unit Mounting the sub mounting hardware is contained in a plastic bag thatincludes;3 - plastic wall anchors3 mounting screws1 terminal strip (TB), set aside for later Remove the Sensor from its sub the Sensor with one hand and firmly grasp thesub base with the other hand. Gently pull the bottom,away and upward. Refer to Figure disassembling the Sensor , protect the internal5 ACC-SVN28 AENI nstallationsurface from contacting objects or substances thatcould cause To determine the appropriate number of wires required,refer to Figure Route the wires from the wall through the wire accesshole in the sub base.

7 Refer to Figure Mount the sub base directly on the wall or on a 2X4handy box (Handy Box must be installed Horizontally).To mount the sub base directly on the wall, hold it inplace and mark the three holes. Drill three 3/16 inch( mm) holes. Gently tap the plastic anchors into theholes until they are flush with the wall. Level the subbase and firmly tighten the mounting screws. OVERTIGHTENING THE SCREWS could crack the mount the sub base on a 2X4 handy box mountedhorizontally, Level the sub base and firmly tighten themounting screws. OVER TIGHTENING THE SCREWS could crack the sub the handy box is installed vertically, a mounting plateand adapter kit (#BAYMTPL003B) is required. Followthe instructions that are enclosed with the Seal the hole in the wall behind the sub 1 Removing the Sensor from the Sub Base Figure 2 Mounting the Sub BaseFigure 3 Terminal Strip WiringO O O O O O O O O O O O A1 A2 A3 7 8 9 10 11 12 14 S1 S 2 SUBBASETERMINAL BLOCKPC BOARDC onductors and Terminal IdentificationOperating Power (2 Wires)24 VAC power supplied from the Unit Control provides theoperating power for the ZSM.

8 The power supply should beconnected to the terminals 11 & 14 on the Note: Supply Voltage is 12 - 15 VACR emote Zone Temperature Sensor (2 Wires Optional)The ZSM supports the use of a remote zone temperaturesensor. The remote Sensor should be a thermistor type sen-sor (Baysens017). When connecting the remote Sensor , useterminals S1 and S2 on the ZSM. Connect the Shield wire(drain wire) from the shielded cable to terminal 11 on : When using a remote Sensor , Option # 11 inthe OPTION MENU must be set to 1 .Communication (1 Wire)Data communication between the UCM and the ZSM is ac-complished over a serial link connected at terminal 12 onthe Status Inputs (4 Wires Optional)The ZSM can be wired to receive four (4) operating statussignals from the UCM (HEAT, COOL, SYSTEM ON , SER-VICE). Four (4) wires from the UCM should be connectedto the appropriate terminals (7, 8, 9 & 10) on the Relay (3 Wires Optional)The auxiliary relay located on the ZSM is energized duringOCCUPIED periods.

9 The auxiliary relay is form C, rated Amps at 30 VAC. Figure 3 illustrates the terminal : Guidelines for wire sizes and lengths areshown in Table 1. The total resistance of these lowvoltage wires must not exceed ohms perconductor. Any resistance greater than ohmsmay cause the control to malfunction due toexcessive voltage : Do not run low-voltage control wiring in sameconduit with high-voltage power 1 Zone Sensor Maximum Lengths and Wire SizeFe e tM e t e r s0 - 1500 - 4622 mm2151 - 24047 - 7320 mm2241 - 38574 - 11718 mm2386 - 610118 - 18516 mm2611 - 970186 - 29614 mm2 Are aDistance fromUnit to ControlRecommendedWire SizeWiring The Sub Base Connecting the wires1. Strip approximately inch of insulation from each wireand connect the wiring to the appropriate terminals at theunit control Remove the Terminal Block from the hardware package andconnect the wiring to the appropriate terminals at theZone Sensor sub base.

10 In general, zone Sensor connec-tions use the convention of connecting Zone Sensor ter-minals to like numbered Unit terminals (1 to 1, 2 to 2,etc.). Refer to Figure Firmly tighten each screw Attach the terminal block to the Sensor PC Fit the wires as close to the sub base as possible. Besure to push the excess wire into the wall and plug thehole with nonflammable insulation to prevent drafts fromaffecting the : Do Not Coil Excess Wire Inside Sub Base!Push All Excess Wire Inside Handy Box Or InsideWall Replace cover. Place the zone Sensor on the sub base byhooking the top two tabs on the Zone Sensor Module tothe slotted tabs on top of the sub base. Swing the ZSMstraight down onto the sub base until you hear the plasticlocking mechanism snap securely into : If the wire bundle is large, it may cause theterminal strip to become disconnected. Secure thewires to the sub base using a small wire 3 Zone Sensor Connection Diagram7 ACC-SVN28 AENI nitial Power-UpBefore applying power to the unit, verify that all wiring is the power to the unit has been turned On , the ZSM will be in the Normal Run State and will begin operating using thefactory default settings.