Orion-system MODGAS-XWR Manuel d'utilisateur télécharger pdf (Page 27)

MODGAS-XWR Technical Guide

APPENDIX B

MODGAS-XWR Replacement of MODGAS II

Replacing the MODGAS II with the

MODGAS-XWR

The retroﬁ t replacement involves a few easy steps. Refer to Figure

12, below.

STAND-ALONE MODE OPERATION

Step 1: Disconnect power from the MODGAS II Controller.

Step 2: Disconnect the Supply Air Temperature Sensor from the

MODGAS II and wire it to the MODGAS-XWR. If the Supply

Air Temperature Sensor is being shared with a Stand-

Alone MHGRV-X Controller, maintain the same wiring

with the MHGRV-X Controller.

Step 3:

Wire all other inputs and outputs per Figure 2, page 5.

Step 4: Set the SAT Options Jumper per Table 8, page 26.

Step 5: Connect power to the MODGAS-XWR Controller.

COMMUNICATIONS MODE OPERATION

Step 1: Disconnect power from the MODGAS-XWR Controller.

Step 2: The Supply Air Temperature Sensor needs to remain

installed on whatever controller it is currently on. If it

is currently installed on the MODGAS II Controller, then

reinstall it on the MODGAS-XWR Controller.

Step 3:

Set the SAT Options Jumper per Table 9, page 26.

Step 4: Connect power to the MODGAS-XWR Controller.

Figure 12: MODGAS-XWR Controller

I C Cable

Connects To

Main Controller’s

Expansion

Port

See Tables 8 & 9, Page 26

For

Settings.

Only One Supply Air

Temperature Sensor

Can Be Used Per Application.

SAT OPTIONS

Jumper

See Table 7, Page 26

For Connection Settings.

YS102530 REV 1

GAS VALVE 2

GAS VALVE 1

PO-IGN2

PO-IGN1

COMMON

RLY4

RLY3

RLY2

RLY1

WATTMASTER

CONTROLS

MADE IN USA

AUX BIN

HEAT EN

RESET IN

OPTIONS

SAT

GND

AUX AIN

GND

STATUS

ALARM

COMM

POWER

ANODE

ENTER

DOWN

ALARM

OE377-26-00060

MODGAS-XWR

AAON No.: V20780

WattMaster No:

#SW000055

Rev.: 1A

E-BUS

CONNECT

I2C

CONNECT

+24 VAC

GND

CONTACT RATING

IS 1 AMP MAX

@ 24 VAC

HEAT 1

LOW SPEED

FAN

PROOF OF IGNITION 1

PROOF OF IGNITION 2

GAS VALVE 2

GAS VALVE 1

GAS VALVE

TERMINALS

HEAT 2

COMMON

RELAY OUTPUT

TERMINALS

INPUT TERMINALS (TYPE)

HEAT ENABLE (BI)

AUX. (BI)

GND

RESET INPUT (AI)

SAT INPUT (AI)

GND(AI)

GND

AUX. (AI)

www.aaon.com

MODGAS-XWR CONTROLLER

(OE377-26-00060)

1 2 ... 22 23 24 25 26 27 28

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Orion-system MODGAS-XWR Manuel d'utilisateur Page 27

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