Orion PREHEAT-X User Manual

Factory Packaged Controls

PREHEAT-X Controller

Technical Guide

PART NUMBER CROSS REFERENCE TABLE

PART DESCRIPTION

PREHEAT-X Controller OE377-26-00061 V48510 V48510 VCC-X Controller OE338-23B-VCCX V43420 N/A VCB-X Controller OE332-26B-VCBX V28940 J00142 VCM-X E-BUS Controller OE332-23E-VCMX V07150 31422 Leaving Air Temperature Sensor OE231 P87140 28503 Entering Air Temperature Sensor OE250 P87150 N/A EBC E-BUS Cables - varying lengths EBC-XXXF V167XX N/A HSSC Cables - varying lengths HSSC-XXXF Varies N/A

WattMaster Controls Inc. 8500 NW River Park Drive · Parkville, MO 64152 Toll Free Phone: 866-918-1100 PH: (816) 505-1100 · FAX: (816) 505-1101 · E-mail: mail@wattmaster.com Visit our web site at www.orioncontrols.com WattMaster Form: AA-PREHEATX-TGD-01C

ORION

www.aaon.com

AAON® Manual Part No.: V48520 Copyright April 2015 WattMaster Controls, Inc.

®

AAON

is a registered trademark of AAON, Inc., Tulsa, OK. Neither WattMaster Controls, Inc. nor AAON® assumes any responsibility for errors or omissions in this document. This document is subject to change without notice.

AAON

TULSA

AAON

COIL

TABLE OF CONTENTS

GENERAL INFORMATION ................................................................................................................4

Overview ..................................................................................................................................................................4

Features ...................................................................................................................................................................4

INSTALLATION & WIRING ............................................................................................................... 5

Important Wiring Considerations ..............................................................................................................................5

Input Wiring ..............................................................................................................................................................6

Output Wiring ...........................................................................................................................................................7

INPUTS/OUTPUTS ........................................................................................................................... 8

OPERATION MODES ........................................................................................................................ 9

Stand-Alone Mode ...................................................................................................................................................9

Communicating Mode ..............................................................................................................................................9

LCD DISPLAY SCREENS ................................................................................................................12

TROUBLESHOOTING ..................................................................................................................... 21

LED Diagnostics ....................................................................................................................................................21

Troubleshooting Conditions & Alarms ..........................................................................................................................21

Temperature Sensors ...................................................................................................................................................22

APPENDIX A - Temperature Sensors ............................................................................................ 23

Leaving Air Temperature Sensor Installation .........................................................................................................23

Leaving Air Temperature Sensor Wiring Chart .......................................................................................................24

APPENDIX B - PREHEAT-X BACnet ............................................................................................... 25

PREHEAT-X BACnet MS/TP Connection ..............................................................................................................25

PREHEAT-X BACnet Points...................................................................................................................................26

PREHEAT-X Technical Guide

3

OVERVIEW

General Information

Overview

The OE377-26-00061 PREHEAT-X Controller (AAON Part No. V48510) is designed to control ﬁ xed stages of Preheat and optional modulating Preheat to maintain a desired Preheat Leaving Air T emperature Setpoint. See Figure 1 for dimensions.

The controller can be used as a stand-alone controller or communicating with an AAON Unit Controller. The PREHEAT-X controller connects to an AAON unit controller via a modular cable. See Figur e 2, page 5 for wiring details.

5.73

5.24

2.62

Features

The PREHEAT-X Controller:

• Can be operated as a stand-alone controller or communicating with the VCC-X, VCB-X, and VCM-X E-BUS Controllers

• Monitors the Preheater Leaving Air Temperature and Leaving Air Reset Signal and controls to maintain Setpoint

• Contains a 2 x 8 LCD character display and 4 buttons that allow for status display and setpoint changes

NOTE: The PREHEAT-X Controller contains no user-

serviceable parts. Contact qualiﬁ ed technical personnel if your operating correctly.

PREHEAT-X Controller is not

5.04

0.21

ALARM

M

MENU

www.aaon.com

www.orioncontrols.com

OE377-26-00061 PREHEAT-X AAON No.: V48510

ANALOG INPUTS

LAT1

LAT2

EAT

OAT

0-10V RESET

GND

BINARY INPUTS

ENABLE

EMERG. SHUTDOWN

FUTURE USE

RS-485 COMM

T(-)

MSTP

SHLD

BACnet

R(+)

WattMaster Label

E-BUS

#LB102XXX-A

Rev.: 1A

CONNECT

E-BUS

WattMaster Label

CONNECT

#S 000062W

Rev.: 1D

MENU

ALARM CONTACT

HEAT

OUTPUTS

HEAT

OUTPUTS

CONTACTRATING IS

1 AMP MAX

CONTACTRATING IS

@ 24 VAC

1 AMP MAX

@ 24 VAC

ANALOG

OUTPUTS

E-BUS

CONNECT

DOWN

RLYCOMM

0-10V MOD. SCR

GND

2.04

0.57

4.09

UP

HEAT1

HEAT2

HEAT3

HEAT4

HEAT5

HEAT6

ENTER

5.63

GND

PWM +

PWM -

+24 VAC

Note: iDepth s 1.49 inches.

Figure 1: OE377-26-00061 PREHEAT-X Controller Dimensions (In Inches)

4

PREHEAT-X Technical Guide

WIRING

Important Wiring Considerations

Please read carefully and apply the following information when wiring the

requires the following electrical connections:

1.

2.

3. Leaving Air Temperature Sensors, Entering Air

4. All 24 VAC wiring must be connected so that all ground

PREHEAT-X Controller. The PREHEAT-X Controller

18 gauge minimum wire unless otherwise noted.

24 VAC power connection with an appropriate VA rating.

Temperature Sensor, and Heat Enable must have 24 gauge minimum wire.

wires remain common. Failure to follow this procedure can result in damage to the module and connected devices.

5. All wiring is to be in accordance with local and national electrical codes and speciﬁ cations.

6. Check all wiring leads at the terminal block for tightness. Be sure that wire strands do not stick out and touch adjacent terminals. Conﬁ rm that all transducers required for your system are mounted in the appropriate location and wired into the correct terminals.

WARNING: Observe polarity! All boards must be wired

GND-to-GND and 24 VAC-to-VAC. Failure to observe polarity could result in damage to the board.

PREHEAT-X Technical Guide

5

WIRING

Inputs Wiring

The PREHEA T-X Controller works as Stand-Alone or communicating with the VCM-X E-BUS, VCB-X, or VCC-X Controller. For connection to a VCM-X E-BUS, VCB-X, or VCC-X Controller, use an E-BUS Cable connecting to the appropriate E-BUS ports on those controllers. The Reset Input and Heat Enable are only used in Stand-Alone Mode. See Figure 2 below for Inputs Wiring.

Mount Inside PREHEAT-X

Leaving Air 2

Temperature Sensor

Mount Inside PREHEAT-X

Box Wall

Entering Air

Temperature Sensor

Make Splice Connections

Inside Sensor

Enclosure

As Shown. Seal All

Conduit Fittings

With Silicone

Mount Sensor Outdoors

In Shaded Protected

Area & In Upright

Position As Shown

Reset In

Signal (24 VAC)

NOTE: Reset In And Heat

Enable Inputs Are Used In

Stand-Alone Mode Only

Leaving Air 1

Temperature Sensor

Box Wall

0-10 VDC

GND

+

-

Heat Enable

W1

Emergency

Shutdown

AIN1 AIN2 AIN3

RST GND GND

BIN1

BIN2

PREHEAT-X CONTROLLER

(OE377-26-00061)

ALARM

UP

M

MENU

www.aaon.com

www.orioncontrols.com

OE377-26-00061 PREHEAT-X AAON No.: V48510

ANALOG INPUTS

LAT1

LAT2

EAT

OAT

0-10V RESET

GND

BINARY INPUTS

ENABLE

EMERG. SHUTDOWN

FUTURE USE

RS-485 COMM

T(-)

MSTP

SHLD

BACnet

SHLD

R(+)

WattMaster Label

E-BUS

#LB102XXX-A

CONNECT

Rev.: 1A

E-BUS

#S 000062W

CONNECT

Rev.: 1D

MENU

ALARM CONTACT

HEAT

OUTPUTS

HEAT

OUTPUTS

CONTACTRATING IS

1 AMP MAX

CONTACTRATING IS

@ 24 VAC

1 AMP MAX

@ 24 VAC

ANALOG

OUTPUTS

E-BUS

CONNECT

DOWN

HEAT1

HEAT2

HEAT3

HEAT4

HEAT5

HEAT6

RLYCOMM

0-10V MOD. SCR

PWM +

GND

+24 VAC

GND

PWM +

PWM -

GND

ENTER

GND

24VAC

40 VA

Transformer

Minimum

N.C.

SAFETIES

(BY OTHERS)

COM

Figure 2: PREHEAT-X Inputs Wiring Diagram

6

Line

PREHEAT-X Technical Guide

WIRING

Outputs Wiring

The PREHEA T-X Controller works as Stand-Alone or communicating with the VCM-X E-BUS, VCB-X, or VCC-X Controller. For connection to a VCM-X E-BUS, VCB-X, or VCC-X Controller , use an E-BUS Cable connecting to the appropriate E-BUS ports on those controllers. See Figure 3 below for Outputs Wiring.

Outputs Wiring

PREHEAT-X CONTROLLER

(OE377-26-00061)

ALARM

UP

M

MENU

www.aaon.com

www.orioncontrols.com

OE377-26-00061 PREHEAT-X AAON No.: V48510

ANALOG INPUTS

LAT1

LAT2

EAT

OAT

0-10V RESET

GND

BINARY INPUTS

ENABLE

EMERG. SHUTDOWN

FUTURE USE

RS-485 COMM

T(-)

MSTP

SHLD

BACnet

R(+)

WattMaster Label

E-BUS

#LB102XXX-A

CONNECT

Rev.: 1A

E-BUS

#S 000062W

CONNECT

Rev.: 1D

MENU

ALARM CONTACT

HEAT

OUTPUTS

HEAT

OUTPUTS

CONTACTRATING IS

1 AMP MAX

CONTACTRATING IS

@ 24 VAC

1 AMP MAX

@ 24 VAC

ANALOG

OUTPUTS

E-BUS

CONNECT

DOWN

HEAT1

HEAT2

HEAT3

HEAT4

HEAT5

HEAT6

RLYCOMM

0-10V MOD. SCR

PWM +

GND

+24 VAC

GND

PWM -

ENTER

GND

Note:

All Relay Outputs Are Normally Open And Rated For 24 VAC Power Only. 1 Amp Maximum Load.

Alarm

Relay Contact

Heat 1 Relay Heat 2 Relay

Heat 3 Relay

Heat 4 Relay Heat 5 Relay

Heat 6 Relay

Modulating SCR

(0-10 VDC)

+ –

PWM SSR

+ –

EBC E-BUS Cable

Connects To

VCC-X Or VCB-X Controller’s

Expansion Port

Figure 3: PREHEAT-X Outputs Wiring Diagram

PREHEAT-X Technical Guide

GND

24VAC

40 VA

Transformer

Minimum

Line

HSSC E-BUS Cable

Connects To

VCM-X Controller’s

Expansion Port

7

INPUTS & OUTPUTS

Inputs and Outputs

I/O Map

See Table 1 below to reference the inputs and outputs that are avail- able on the PREHEAT-X Controller.

Analog Inputs

1 Leaving Air Temperature 1 (LAT1) 2 Leaving Air Temperature 2 (LAT2) 3 Entering Air Temperature Sensor 4 Reset In (0-10 VDC)

Binary Inputs

1 Heat Enable 2 Emergency Shutdown 3 Future Use

Analog Outputs

1 0-10 VDC Mod SCR 2 PWM SSR

Relays

1 Alarm 2 Heat 1 3 Heat 2 4 Heat 3 5 Heat 4 6 Heat 5 7 Heat 6

NOTE: For AIN1 through AIN3, all T emperature Sensors must

be Thermistor Type III which provide 77.0°F @ 10K Ohms Resistance.

Reset Input (0-10 VDC)

Used only in stand-alone operation. The Leaving Air Temperature Setpoint can be reset by supplying a 0-10 VDC signal to the RST IN low voltage terminal block. This reset signal is optional and need only be used if you require resetting of the discharge air temperature.

Binary Inputs

Heat Enable Contact (HEAT EN)

This input is only required when the controller is used in stand-alone operation; it is not required when communicating with an AAON Unit Controller. The Heat Enable input is activated by a 24VAC signal supplied from a building automation system to enable the PREHEAT-X Controller. The controller will not operate without 24VAC being applied to this input terminal when used in a standalone conﬁ guration. When the Heat Enable signal is lost or turned off, all stages de-activate immediately.

Emergency Shutdown Input

This wet contact (24 VAC) input is used to initiate shutdown of the HV AC unit when a N.C. Smoke Detector (by others), Firestat (by others), or other shutdown condition (by others) occurs and the contact is opened. The controller remains active and can initiate alarm relays.

Analog Outputs

Table 1: PREHEAT-X Controller Inputs & Outputs

Analog Inputs

Leaving Air Temperature 1 (LAT1)

When enabled, the PREHEAT-X Controller will control to a Leaving Air Temperature Setpoint. The Controller can be conﬁ gured to use only LAT 1 for this purpose. Typically, the average of LAT1 and LAT2 is used.

Leaving Air Temperature 2 (LAT2)

When enabled, the PREHEAT-X Controller will control to a Leaving Air Temperature Setpoint. The Controller can be conﬁ gured to use only LAT 2 for this purpose. Typically, the average of LAT1 and LAT2 is used.

Entering Air Temperature

When the Entering Air Temperature falls below the Entering Air Temperature Setpoint, preheat will be enabled.

8

0-10 VDC Modulating SCR

Depending on the type of Heat used, this output will supply a 0-10 VDC output signal for control of the modulating SCR Heat.

Pulse Width Modulating SSR

Depending on the type of Heat used, this output will supply a 12 V PWM Output Signal for control of the modulating SSR Heat.

Relay Outputs

Relay #1 - Alarm

This relay sends a signal when an alarm is enabled.

Relays #2 - 6—Fixed Stage Heat Outputs

PREHEAT-X Technical Guide

OPERATION MODES

Outputs and Operation Modes

Operation Modes

The PREHEA T -X Controller can be used stand-alone or communicating with an AAON Unit Controller using a modular cable.

Stand-Alone Mode

When used in a stand-alone application, the PREHEA T -X Controller will modulate SCR or SSR Heat and stage any additional ﬁ xed stages to maintain the Leaving Air T emperature setpoint con ﬁ gured on the PREHEA T-X Controller LCD display . The PREHEA T-X Controller is activated by a 24VAC signal to the HEAT EN input.

Communicating Mode

When the PREHEA T-X Controller is connected and communicating with an AAON Unit Controller via a modular cable, the necessary information will be passed between the PREHEAT-X and the Main Unit Controller to properly operate in the Heating Mode.

If the communication is interrupted between the PREHEAT-X Controller and the Main Controller, both boards will show an alarm and the PREHEA T-X outputs will turn off. When communication is restored, the alarms will go away.

In this conﬁ guration, the Leaving Air T emperature Setpoints and the Preheat Enable Sepoints are set using the Main Controller.

PREHEAT-X Technical Guide

9

Orion PREHEAT-X User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual