Orion-system MHGRV-X Manual de usuario descargar pdf (Pagina 19)

MHGRV-X Field Technical Guide

APPENDIX B

Appendix B - MHGRV-X Replacement of MHGRV II

Replacing the MHGRV II with the

MHGRV-X

The drop-in replacement involves a few easy steps. Refer to Figure 7.

STAND-ALONE MODE OPERATION

Step 1: Disconnect power from the MHGRV II Controller.

Step 2: Disconnect the Supply Air Temperature Sensor from the

MHGRV II and wire it to the MHGRV-X. If the Supply

Air Temperature Sensor is being shared with a Stand-

Alone MODGAS Controller, maintain the same wiring

with the MODGAS Controller.

Step 3: Separate the HGR Valve wires and the Condenser Valve

wires onto the appropriate Reheat Drive and Condenser

Drive terminal blocks per Figure 3, page 6. Wire all

other inputs and outputs per Figure 3, also.

Step 4: Set the SAT Options Jumper per Table 8, page 18.

Step 5: Connect power to the MHGRV-X Controller.

COMMUNICATIONS MODE OPERATION

Step 1: Disconnect power from the MHGRV-II 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 MHGRV II Controller, then

reinstall it on the MHGRV-X Controller. If it is currently

installed on the main unit controller or on a connected

MODGAS Controller, it needs to remain there.

Step 3:

Set the SAT Options Jumper per Table 9, page 18.

Step 4: Connect power to the MHGRV-X Controller.

Figure 7: MHGRV-X Controller

Line

GND

24VAC

40 VA

Transformer

Minimum

Supply

Air Temperature

Sensor

Mount In Supply

Air Duct

MHGRV-X CONTROLLER

(OE377-26-00059)

See Tables 7, 8 & 9 On Page 18 For

SAT OPTIONS Jumper Settings.

Only One Supply Air Temperature Sensor

Can Be Used Per Application.

I C Cable

Connects To

AAON Unit Controller’s

Port

1.)24 VAC Must Be Connected So

That All Ground Wires Remain

Common.

2.)All Wiring To Be In Accordance

With Local And National

Electrical Codes And

Specifications.

Connect To MHGRV-X Controller

In Stand-Alone Mode Or When

Using VAV/CAV Or MUA Controller.

If Also Using A MODGAS Controller

In Stand Alone Mode,

The SAT Sensor Connects

To The MODGAS Controller.

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 25 26

Comentarios a estos manuales

Sin comentarios

Orion-system MHGRV-X Manual de usuario Pagina 19

Comentarios a estos manuales

Relacionado con productos y manuales para Hardware Orion-system MHGRV-X