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In Energy Plus, I am modeling toilet exhaust fans. All of the air to the toilet zone is supplied by transfer air from adjacent conditioned zones. There is no supply air or return air from/to an AHU at the toilet zone, and there is no active temperature control in the zone. For these reasons, the toilet zone is not served by any AirLoopHVAC. I have read this post concerning modeling transfer air. I have followed the advice suggested by the answer there posted by Archmage and

• Used a ZoneMixing object to send air from the source zone into the toilet zone.
• Used a Fan:ZoneExhaust object to remove air from the source zone

Finally, I need to figure out a way to remove air from the toilet zone. I need to do that without introducing outdoor air directly to the toilet zone as would occur with ZoneVentilation:DesignFlowRate Is it possbile to set up a Fan:ZoneExhaust for the toilet zone, which is not on an AirLoopHVAC? If it is possible, what other objects will I need in addition to the Fan:ZoneExhaust?

Thanks in advance for advice.

In Energy Plus, I am modeling toilet exhaust fans. All of the air to the toilet zone is supplied by transfer air from adjacent conditioned zones. There is no supply air or return air from/to an AHU at the toilet zone, and there is no active temperature control in the zone. For these reasons, the toilet zone is not served by any AirLoopHVAC. I have read this post concerning modeling transfer air. I have followed the advice suggested by the answer there posted by Archmage and

• Used a ZoneMixing object to send air from the source zone into the toilet zone.
• Used a Fan:ZoneExhaust object to remove air from the source zonezone to reduce return air flow to the AHU serving that zone, and to force additional OSA supply from the AHU if needed to balance the zone EA.

Finally, I need to figure out a way to remove air from the toilet zone. I need to do that without introducing outdoor air directly to the toilet zone as would occur with ZoneVentilation:DesignFlowRate Is it possbile to set up a Fan:ZoneExhaust for the toilet zone, which is not on an AirLoopHVAC? If it is possible, what other objects will I need in addition to the Fan:ZoneExhaust?

Thanks in advance for advice.

In Energy Plus, I am modeling toilet exhaust fans. All of the air to the toilet zone is supplied by transfer air from adjacent conditioned zones. There is no supply air or return air from/to an AHU at the toilet zone, and there is no active temperature control in the zone. For these reasons, the toilet zone is not served by any AirLoopHVAC. I have read this post concerning modeling transfer air. I have followed the advice suggested by the answer there posted by Archmage and

• Used a ZoneMixing object to send air from the source zone into the toilet zone.
• Used a Fan:ZoneExhaust object to remove air from the source zone to reduce return air flow to the AHU serving that zone, and to force additional OSA supply from the AHU if needed to balance the zone EA.

Finally, I need to figure out a way to remove air from the toilet zone. I need to do that without introducing outdoor air directly to the toilet zone as would occur with ZoneVentilation:DesignFlowRate Is it possbile to set up a Fan:ZoneExhaust for the toilet zone, which is not on an AirLoopHVAC? If it is possible, what other objects will I need in addition to the Fan:ZoneExhaust? Is there a different way to do this?

Thanks in advance for advice.

In Energy Plus, I am modeling toilet exhaust fans. All of the air to the toilet zone is supplied by transfer air from adjacent conditioned zones. There is no supply air or return air from/to an AHU at the toilet zone, and there is no active temperature control in the zone. For these reasons, the toilet zone is not served by any AirLoopHVAC. I have read this post concerning modeling transfer air. I have followed the advice suggested by the answer there posted by Archmage and

• Used a ZoneMixing object to send air from the source zone into the toilet zone.
• Used a Fan:ZoneExhaust object to remove air from the source zone to reduce return air flow to the AHU serving that zone, and to force additional OSA supply from the AHU if needed to balance the zone EA.

Finally, I need to figure out a way to remove air from the toilet zone. I need to do that without introducing outdoor air directly to the toilet zone as would occur with ZoneVentilation:DesignFlowRate Is it possbile to set up a Fan:ZoneExhaust for the toilet zone, which is not on an AirLoopHVAC? If it is possible, what other objects will I need in addition to the Fan:ZoneExhaust? Is there a different way to do this?

Thanks in advance for advice.