Rêbernameya Bikarhêner a Kontrolkera Armanca Giştî ya Modulê ya AAON PREHEAT-X Series

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AAON
2425 South Yukon Ave.
Tulsa, OK 74107-2728
www.aaon.com
Telefona Piştgiriya Teknîkî ya Fabrîkê: 918-382-6450
Piştgiriya Kontrolên AAON: 866-918-1100
Armanca AAON ew e ku agahdariya hilberê rast û heyî peyda bike. Lêbelê, di berjewendiya başkirina hilberê de, AAON mafê guheztina nirx, taybetmendî, û/an sêwirana hilberê xwe bêyî agahdarî, berpirsiyarî, an berpirsiyariyê diparêze.

AAON P/N: V97760, Rev. C
© December 2024 AAON Inc. All rights reserved throughout the world.
AAON® marqeyek qeydkirî ya AAON, Inc., Tulsa, OK e.
AAON ti berpirsiyariya xeletî an kêmasiyên di vê belgeyê de nagire ser xwe.
Ev belge bêyî agahdarî dikare were guhertin.

SERVIEW

Agahiyên Giştî

Serview

The PREHEAT-X-EXT is designed to control fixed stages of Preheat and optional modulating Preheat to maintain a desired Preheat Leaving Air Temperature Setpoint. See Figure 1, this page for dimensions. See Figure 2 and 3, pages 7 and 8 for wiring details.

The PREHEAT-X-EXT Module has a lower minimum Leaving Air Temperature Setpoint (0ºF). It should only be used with the approval of AAON.

NOT: The PREHEAT-X-EXT contains no user- serviceable parts. Contact a qualified technician if your PREHEAT-X-EXT is not operating correctly.

Features

The PREHEAT-X-EXT has the following features:

• Can be operated in Stand-Alone Mode or in Communications Mode with the VCCX2 or other AAON unit controllers.
• Monitors the Preheater Leaving Air Temperature and Leaving Air Reset Signal and controls to maintain the setpoint.
• Has a lower minimum Leaving Air Temperature Setpoint (0ºF).
• Contains a 2 x 8 LCD character display and four buttons that allow for status display and setpoint changes.

WIRING

Nîqaşên Girîng Wiring

Têlkirin

The modules must be connected to an 18-30 VAC power source of the proper size for the calculated VA load requirements. All transformer sizing should be based on the VA ratings listed in Table 1, this page.

NOT: If the temperature at the PREHEAT-X-EXT is below -4ºF (-20ºC), the display refresh rate could be less responsive.

GAZÎ: When using a single transformer to power more than one controller or expansion module, the correct polarity must always be maintained between the boards. Failure to observe correct polarity will result in damage to the AAON unit controller, PREHEAT-X-EXT, and any associated module.

Please carefully read and apply the following information when wiring the AAON unit controller, PREHEAT-X-EXT and any associated module.

1. Divê hemû têlkirin li gorî rêzikname û pîvanên elektrîkê yên herêmî û neteweyî bin.
2. Divê hemû têlên 24 VAC werin girêdan da ku hemû têlên erdê hevpar bimînin. Neşopandina vê rêbazê dikare bibe sedema zirarê li kontrolker û cîhazên girêdayî.
3. Minimum wire size for 24 VAC wiring should be 18-gauge.
4. Divê mezinahiya têla herî kêm ji bo hemî sensoran 24-gauge be. Hin sensor hewceyê têla du-berîner û hin jî hewceyê têla sê-an çar-berîner in.
5. Mezinahiya têlê ya herî kêm ji bo têlên termostatê yên 24 VAC divê 22-gauge be.
6. Piştrast be ku hemû girêdanên têlan bi rêkûpêk hatine danîn û di nav blokên termînalê de hatine teng kirin. Nehêlin ku têlên têlan derkevin û li termînalên cîran bidin, ku ev dikare bibe sedema kurteçûnekê.
7. When communication wiring is to be used to interconnect AAON unit controllers together or to connect to other communication devices, all wiring must be plenum-rated, minimum 18-gauge, two- conductor, twisted-pair with shield. AAON can supply communication wire that meets this specification and is color coded for the network or local loop. Please consult your AAON distributor for information. If desired, Belden #82760 or equivalent wire may also be used.
8. Before applying power to the AAON unit controller, PREHEAT-X-EXT, and any associated modules, be sure to recheck all wiring connections and terminations thoroughly.

Powering Up
Dema ku kontrolker û modul cara yekem tên xebitandin, divê LED-a POWER vêkeve û bi berdewamî vêkeve. Ger vênebe, kontrol bike ku 24 VAC bi kontrolkerê ve girêdayî ye, girêdanên têlan teng in, û ew bi polarîteya rast hatine têlkirin. Hêza 24 VAC divê bi vî rengî were girêdan ku hemî têlên erdê hevpar bimînin. Ger piştî van hemî kontrolkirinan, LED-a POWER vênebe, ji kerema xwe ji bo alîkariyê bi Piştgiriya Kontrolên AAON re têkilî daynin.

Inputs Wiring

Inputs

The PREHEAT-X-EXT can be operated in Stand-Alone Mode or in Communications Mode with the VCCX2 or other AAON unit controllers. For connection to the PREHEAT-X-EXT use an E-BUS cable connecting to the appropriate E-BUS ports. The Reset Input and Heat Enable are only used in Stand-Alone Mode. See Figure 2, this page for the Inputs Wiring Diagram.

Têlên Derketinan

Derketin

The PREHEAT-X-EXT can be operated in Stand-Alone Mode or in Communications Mode with the VCCX2 or other AAON unit controllers. For connection to the PREHEAT-X-EXT, use an E-BUS cable connecting to the appropriate E-BUS ports. See Figure 3, this page for Outputs Wiring.

KÊN Û DERKETIN

Têketinên Analog û Dualî, Derketinên Analog û Relayan

Nexşeya I/O
Dîtin Table 2, this page to reference the inputs and outputs that are available on the PREHEAT-X-EXT.

Inputên Analog

Germahiya Hewaya Derketinê 1 (LAT1)
When enabled, the PREHEAT-X-EXT controls a Leaving Air Temperature (LAT) Setpoint. The PREHEAT-X-EXT can be configured to use only LAT1 for this purpose. Typically, the average of LAT1 and LAT2 is used.

Germahiya Hewaya Derketinê 2 (LAT2)
When enabled, the PREHEAT-X-EXT controls a Leaving Air Temperature Setpoint. It can be configured to use only LAT2 for this purpose. Typically, the average of LAT1 and LAT2 is used.

Ketina Germahiya hewayê
Dema ku Germahiya Hewaya Ketinê ji Xala Setup a Germahiya Hewaya Ketinê kêmtir bibe, pêşgermkirin dê çalak bibe.

NOT: For AI1 through AI3, all temperature sensors must be Thermistor Type III Temperature Sensors, which provide 77.0ºF @ 10K ohms resistance.

Têketina Vesazkirinê (0-10 VDC)
When the PREHEAT-X-EXT is used as a stand-alone module, the Leaving Air Temperature Setpoint can be reset by supplying a 0-10 VDC signal to the RST IN low voltagbloka termînalê ya e. Ev sînyala vesazkirinê vebijarkî ye û tenê hewce ye ku were bikar anîn ger hûn hewce ne ku Germahiya Hewaya Derketinê ji nû ve saz bikin.

Têketinên Binary

Têkiliya Çalakkirina Germê (HEAT EN)
This input is only required when the PREHEAT-X-EXT is used in Stand-Alone Mode; it is not required when communicating with an AAON unit controller. The Heat Enable input is activated by a 24 VAC signal supplied from a building automation system to enable the PREHEAT-X-EXT. The module will not operate without 24 VAC being applied to this input terminal when used as a stand-alone module. When the Heat Enable Signal is lost or turned off, all stages tavilê neçalak dibin.

Input Shutdown Awarte
This wet contact (24 VAC) input is used to initiate shutdown of the HVAC unit when a normally closed Smoke Detector (by others), Firestat (by others), or other shutdown condition (by others) occurs and the contact is opened. The PREHEAT-X-EXT remains active and can initiate alarm relays.

Hilberên analog

SCR-ya Modulasyonê ya 0-10 VDC
Li gorî celebê Germahiyê yê ku tê bikar anîn, ev dergeh dê ji bo kontrolkirina Germahiya SCR ya modulker sînyalek dergehê ya 0-10 VDC peyda bike.

SSR-ya Modulasyona Firehiya Pulsê
Li gorî celebê germahiya ku tê bikar anîn, ev dergeh dê Sînyalek Derketinê ya 12 V PWM ji bo kontrola Germahîya SSR ya modulker peyda bike.

Derketinên Relay

Rela #1 – Alarm
Ev relayê dema ku alarmek çalak dibe sînyalek dişîne.

Relay #2 – 7
Ev relayên Sabît S netagDerketinên Germê yên e.

REWA KARAN

Modes Operasyonê

Moda Stand-Alone
When used in Stand-Alone Mode, the PREHEAT-X-EXT will modulate SCR or SSR Heat and stagher sabîtên zêdetages to maintain the Leaving Air Temperature Setpoint configured on the PREHEAT-X-EXT LCD display. The PREHEAT-X-EXT is activated by a 24 VAC signal to the HEAT EN Input.

Moda Ragihandinê
When the PREHEAT-X-EXT is connected and communicating with an AAON unit controller via a modular cable, the necessary information will be passed between the PREHEAT-X-EXT and the AAON unit controller to properly operate in the Heating Mode.

If the communication is interrupted between the PREHEAT-X- EXT and the AAON unit controller, both boards will show an alarm and the PREHEAT-X-EXT outputs will turn off. When communication is restored, the alarms will go away.

In this configuration, the Leaving Air Temperature Setpoints and the Preheat Enable Setpoints are set using the main AAON unit controller.

Pregerim Çalak bike

Moda Stand-Alone
Enabled when the Binary Input (BI1) is closed and the Entering Air Temperature is below setpoint.

Moda Ragihandinê ya E-BUS
Dema ku Germahiya Hewaya Ketinê ji Xala Set a Pêşgermkirinê dadikeve xwarê, bi fermana E-BUS ve tê çalakirin.

Moda Ragihandinê ya BACnet
Enabled by BACnet® command or Binary Input (BI1), whichever occurs first.

Sensora Hewayê ya Derketinê
The PREHEAT-X-EXT can be configured to use one of three sensor configurations for control.

• Tenê Sensora Hewayê 1 derdikeve (LAT1)
• Tenê Sensora Hewayê 2 derdikeve (LAT2)
• Average Leaving Air Temperature from LAT1 and LAT2

Xala mîhengkirina hewaya derketinê

Stand-Alone

• Leaving Air Temperature Setpoint can be reset between the Leaving Air Temperature Setpoint and LAT Setpoint Reset Limit.
• The Reset Source is based on a 0-10 VDC input and range can be adjusted using the Leaving Air Temperature Setpoint Reset Source Low and Leaving Air Temperature Setpoint Reset Source High Setpoints.

Moda ragihandinê ya E-BUS û BACnet

• Xala Set a Germahiya Hewaya Derketinê dê ji kontrolkerê re were şandin.
• Ev nirx di bîra bêîstîqrar de tê hilanîn û di dema vesazkirinê de winda dibe.
• Xalên mîhengê yên Germahiya Hewaya Derketinê yên cuda hene, li gorî ka yekîne di Moda Germkirinê, Ventilasyonê, an Sarbûnê de ye.

Modulating Heat

• Ger were mîhengkirin, Derana Germahiyê ya Modulasyonê dê wekî yekem s were bikar anîn.tage ji germê.
• Analog VoltagDeranîn dikare li gorî hewcedariyê di navbera 0-10 VDC de were verast kirin da ku Xala Set a Hewaya Derketinê were parastin.
• Ji hêla Loopek PID ya Navxweyî ve tê kontrol kirin.

Germiya Stagbilind dibe

Divê berî cara yekem (ya din) şertên jêrîn bên bicîhanîn:taggermê dikare were enerjîkirin:

• Divê Sînyala/Fermana Çalakkirina Pêşgermkirinê çalak be.
• The Leaving Air Temperature must be below the Leaving Air Temperature Setpoint.
• Ger Mod Heat hatibe mîheng kirin, divê ji bo S li ser %100 betagDerengketina Rabûnê.
• Divê Dema Kêmtirîn a Veqetandinê were bicîhanîn.
• StagDivê Delay Up Delay were bicîhanîn (ji bo saniyeyan)tage û jortir).

Germiya Stagdaketin

Divê şert û mercên jêrîn berî wekîtagenerjîya germê dikare were kêmkirin:

• Preheat Enable Signal/Command is deactivated or the Leaving Air Temperature must be above the Leaving Air Temperature Setpoint by the Leaving Air Temperature Deadband.
• Eger Modulkirina Germahiyê hatibe mîhengkirin, divê ji bo S li ser 0% be.tagDerengketina Daketinê.
• Divê Dema Herî Kêm a Xebitandinê were bicîhanîn.
• StagDivê Dema Downtime were bicîhanîn.

Girtina Awarte

Divê Têketina Vemirandina Awarte her tim wekî têkiliyek 24 VAC ya normal girtî were bikar anîn û were girêdan. Ger Vemirandina Awarte çêbibe û ew têkilî vebe:

• Hemû derketin dê tavilê werin bêenerjîkirin.
• Alarmek dê were çêkirin.

Alarma Germahiya Hewaya Derketinê ya Bilind

If the Leaving Air Temperature is above the Leaving Air Temperature High Temp-erature Alarm Limit for more than the Alarm Delay, all heating outputs will be de-energized immediately.

• Alarmek dê were çêkirin.
• Pêdivî bi sazkirina destî heye.

Alarma Germahiya Hewaya Derketinê ya Kêm
If the Leaving Air Temperature is below the Leaving Air Temperature Low Temperature Alarm Limit for more than two minutes, the heat will remain on but an alarm will be generated.

Ekranên LCD

Keys Navîgasyon

Ekrana LCD û Bişkokên Navîgasyonê

Ekran û bişkokên LCD-ê dihêle hûn view status and alarms, and enable force modes. See Figure 4, this page û binihêrin Table 3 and 4, this page ji bo danasînên.

Nexşeya Dîmenderên Sereke

Ekranên Sereke

Ekranên Sereke

Refer to the following map when navigating through the LCD Main Screens. The first screen is an initialization screen. To scroll through the rest of the screens, press the pişkov.

Ekranên Rewşê

Refer to the following map when navigating through the Status Screens. From the STATUS Screen, press to scroll through the screens.

Setpoints Screens

Ekranên Xala Setup

Refer to the following map when navigating through the Setpoint Screens. From the SETPOINTS Screen, press to scroll through the screens and change setpoints. Use the û arrow keys to change your selections. Then press ji bo tomarkirina xala nû.

NOTDema ku PREHEAT-X-EXT di Moda Ragihandinê de dixebite, ev ekranên xalên mîhengê li ser ekrana LCD-ê xuya nabin ji ber ku ew ji hêla kontrolkera sereke ve têne kontrol kirin.

Dîmendera Alarman

Dîmendera Alarman
Dema ku hûn li nexşeya jêrîn binêrin viewing the ALARMS Screens. These screens will display automatically when alarms are present. For alarm troubleshooting.

Alarmên wiha ne:

BÊ ALARM: This will be shown if there are no current alarms.

E-SHUTDN: If 24 VAC is removed from the Emergency Shutdown Input, this alarm will activate and the controller will turn off all outputs. The alarm will be disabled when voltage vegeriyaye.

LA1 SENS: The first Leaving Air Temperature Sensor has been disconnected, shorted, open, or missing for more than 60 seconds. This alarm will be disabled when the sensor is working again.

LA2 SENS: The second Leaving Air Temperature Sensor has been disconnected, shorted, open, or missing for more than 60 seconds. This alarm will be disabled when the sensor is working again.

LOW LAT: This indicates a Leaving Air Temperature Cutoff alarm condition. If the Leaving Air Setpoint is less than 35ºF, the alarm will trigger then the Leaving Air Temperature is 10ºF cooler for two minutes.

HI LAT: This indicates a Leaving Air Temperature Cutoff alarm condition which is activated if the controlling Leaving Air Temperature has risen above 120ºF. All outputs will stage off.

EA SENS: The Entering Air Temperature Sensor has been disconnected, open, shorted, or missing for more than 60 seconds. This alarm will be disabled when the sensor is working again.

COM STAT: Communications have been lost with the main controller for more than 30 seconds. This alarm will disable when communications resume.

Dîmenderên Mîhengkirinê

Refer to the following map when navigating through the Configuration Screens. From the CONFIG Screen, press to scroll through the screens and change setpoints. Use the û arrow keys to change your selections. Press da ku her guhertinê xilas bike.

Dîmenderên Mîhengkirina Ragihandinê

Dîmenderên Mîhengkirina Ragihandinê

From the COMM CONFIG Screen, press to scroll through the screens and change setpoints. Use the û arrow keys to change your selections. Press da ku her guhertinê xilas bike.

Pirsgirêkan

Diagnostics LED

Giştî

The PREHEAT-X-EXT is equipped with LEDs that can be used to verify operation and perform troubleshooting. See Figure 6, this page for the LED locations. The LEDs associated with these inputs and outputs allow you to see what is active without using a voltmeter. The LEDs and their uses are as follows:

LEDATN STATUSYA
ERK – This green LED will light up to indicate that 24 VAC power has been applied to the module.

LED-yên teşxîsker
HAWAR – This red LED located on the PREHEAT-X-EXT’s cover above the LCD display will light up to indicate an alarm. The type of alarm(s) will be shown on the LCD display.

Têkilî LED
COMM – This yellow LED will light up and blink when communications are detected.

Relay LEDs
RLY 1-6 – These green LEDs will light up and stay lit as long as the Heat Relay(s) is active.

LED-ên Têketina Dualî
HEAT EN – This green LED will light up when Heat is enabled.

GIRTINA AWARTE – This green LED will light up when the Emergency Shutdown Input (BI2) has 24 VAC applied to it.

Alarms

Pirsgirêkên Alarm

Têkçûna Mekanîkî:

• Check relay outputs on the PREHEAT-X-EXT for 24 VAC output.
• Verastkirina voltage (VOUT û GND) bo SCR an PWM.
• Verify that the Leaving Air Temperature Sensor(s) is connected to AI1 and/or AI2 and GND on the PREHEAT-X-EXT.
• Verify that the Leaving Air Temperature Sensor probe(s) is mounted correctly.
• Remove AI1 and AI2 and GND wiring from the PREHEAT-X-EXT and take a resistance reading across the sensor (this may indicate open or failed wiring). See Tablo 5.

Têkçûna Germahiya Hewaya Derketinê:

• Verify that the Leaving Air Temperature sensor(s) is connected to the AI1 and/or AI2 and GND on the PREHEAT-X-EXT.
• Remove AI1 and AI2 and GND wiring from the PREHEAT-X-EXT and ohm out the sensor (this may indicate open or failed wiring). See Tablo 5.

Windakirina Peywendiyan:

• Check COMM LED on PREHEAT-X-EXT.
• Hêza 24 VAC ji bo hemî kontrolkerên bi hev ve girêdayî verast bikin.
• Verify connection between the PREHEAT-X-EXT and associated controllers.
• In Communications Mode (connected with a modular cable), verify the PREHEAT-X-EXT configuration on the controller.

PÊVEKA A: SENSORA LAT

Lêkirinî

Sazkirina Sensora Germahiya Hewaya Derketinê

The Leaving Air Temperature Sensor should be located in the PREHEAT-X-EXT box’s output location.

Locate the sensor in the center of the widest part of the PREHEAT-X-EXT box wall. Use the supplied template and a 5/16 inch drill to make a hole for the sensor.

Gasket li ser sondê saz bike û bi karanîna pêçên pelê metal ên hatine peyda kirin bi ewlehî li dîwarê qutiyê ve girêde. Piştrast be ku gasket hatiye pêçandin da ku mohreke hewayî peyda bike.

Ji bo rastbûna herî baş, îzolasyonê li derveyî dîwarê qutiyê, li ser sensorê bicîh bikin. Ev ê bibe alîkar ku pêşî li bandorên guherînên germî li ser sensorê bigire.

GAZÎ: Make sure your Leaving Air Temperature Sensor(s) are mounted and wired according to these instructions prior to testing the unit or else the modulating valve will not control properly and may damage your equipment.

Testkirina Sensor

Sensora Germahiya Hewayê ya Derketinê

If you suspect the Entering or Leaving Air Temperature Sensor is not reading correctly, make sure the wiring terminal connections are tight and that any wiring splices are properly connected. You can check the operation of the Leaving Air Temperature Sensor by measuring the resistance or voltagbi karanîna multimetreyek dîjîtal. Pîvanê li ser Volta DC bicîh bikin. Probeya erênî li ser termînala AI û probeya neyînî li ser termînala GND bicîh bikin. Volta DC bixwînin û bibînin ku voltage di Table 5, this page.

Germahiya ku bi wê volûmê re têkildar e bixwîne.tage and determine if this is close to the actual temperature the sensor is exposed to. If the temperature from the chart is different by more than a few degrees, you probably have a defective or damaged sensor. You can also check the sensor resistance to determine correct operation.

Rêwerzên Testkirina Sensorê Termîstorê

To read the resistance, set the meter to ohms. Unplug the sensor connector from the board and measure the resistance across the disconnected wires. This resistance should match the corresponding temperature from Table 5, this page.

Rêwerzên Testkirina Sensorê Termîstorê

1. Ji bo kontrolkirina sensora termîstorê dema ku ji kontrolkeran veqetandî ye (ne bi elektrîkê ve girêdayî ye), stûna berxwedanê bikar bînin.
2. Volê bikar bînintagstûna e ji bo kontrolkirina sensoran dema ku bi kontrolkerên bi hêz ve girêdayî ne. Cildê bixwînetage bi pîvanê li ser voltaja DC hatî danîn. Kabloya "-" (kêm) li ser termînala GND û kabloya "+" (plus) li ser termînala têketina sensorê ya ku tê lêkolînkirin deynin.

PÊVEKA B: BACnet®

Girêdana bi Tora MS/TP re

PREHEAT-X-EXT BACnet® Points

NOT: These BACnet® points are only available if the unit is being used as a stand alone device. If connected to a VCCX2, refer to the VCCX2 Technical Guide for BACnet® points.

PREHEAT-X-EXT BACnet® Property Nasname

Nasnameya Taybetmendiya BACNETê:
AllAlarmGroup1Bits ::= BIT STRING {
Parastî (0),
BadLeavingAir1 (1),
BadLeavingAir2 (2),
Hewaya Kêmberdayî (3),
Hewaya Bilind-Pel (4),
Parastî (5),
Ketina Hewayê ya Xirab (6),
Alarm (7) a CommAlarm,
Alarmê Girtinê (8)

PREHEAT-X-EXT Technical Guide
V97760 · Rev. D· 241206

Piştgiriya Kontrolên AAON:
Support.Controls@aaon.com

Piştgiriya kontrol dike Webmalper:
www.aaon.com/aaon-controls-technical-support

Piştgiriya Teknîkî ya Kargeha AAON:
Technical.Support@aaon.com

Telefon
866-918-1100
Duşem heta Înî, 7:00 AM ber 5:00 PM Dema Navendî

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BEART: Ji bo parçeyên guheztinê, ji kerema xwe bi Nûnerê AAON-a xweya herêmî re têkilî daynin.

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2425 South Yukon Ave • Tulsa, OK • 74107-2728
Ph: 918-583-2266 • Faks: 918-583-6094
AAON P/N: V97760, Rev. D
Printed in the USA • Copyright February 2024• All Rights Reserved

Belge / Çavkanî

AAON PREHEAT-X Series Module General Purpose Controller [pdf] Rehbera bikaranînê V97760-PREHEAT-X-EXT-TGD-B, ASM01689, ASM07424, ASM01698, ASM01862, V07151, G051240, G051250, G042230, G029440, G012870, G029460, 045270, G029510, G029530, G029450, G029470, V36590, G018870, PREHEAT-X Series Module General Purpose Controller, PREHEAT-X Series, Module General Purpose Controller, General Purpose Controller, Purpose Controller, Controller

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