Greenheck Fan Outdoor Air Ventilator manual Installation Instructions for, Mounting the Unit

Installation Instructions for:

NV-45 w/Horizontal Discharge

Step 1 Mounting the Unit

Arrangement HZ can be mounted on a curb with an equipment support (see curb inst.) or on three equipment supports (figs. 1&4).

Arrangement HZ can also be used for indoor applications mounted hanging (fig. 5), inline as part of an air handling system, or base mounted. Mounting hardware to be provided by others.

In any case, adequate support of the unit is required.

Equipment

Support

Footprint

C

L

A

(fig.1)A

A -Equip. Support C	441/4"
L

C

L

C

L

Step 2 Attach Ductwork to Unit Discharge

Chart and drawing (fig.2) below shows opening size (ID) and location for a discharge collar. Also included is the recommended straight duct length for optimal performance. Greenheck recommends attaching ductwork to collar using a rubber duct section at the unit to eliminate vibration.

Step 3 Attach Ductwork to Unit Intake

For non-weatherhood installations, fig. 3 below shows dimensions for supply opening (ID). Attach ductwork to perimeter flange using a rubber duct section at the unit to eliminate vibration. Design the remaining ductwork for minimal losses to allow the unit to operate properly.

Recommended Duct Size/Location and Intake Dimensions

Minimum Straight Duct Length - 54”

Typical Installations

16 23

16

12

(fig.2)

48

43

(fig.3)

DISCHARGE

DISCHARGE

INTAKE

INTAKE

(fig.4)

Roof mounted arrangement HZ

with weatherhood, mounted on three equipment supports. Ductwork is attached to discharge collar with rubber boot transition.

(fig.5)

Arrangement HZ shown as an indoor hanging installation with intake and discharge ductwork installed.

(Hanging support structure for unit is by others).

3