Greenheck Fan Outdoor Air Ventilator User Manual

GREENHECK

P.O. BOX 410 SCHOFIELD, WISCONSIN 54476-0410

PH. 715-359-6171

Installation, Operation and Maintenance Instructions

for Neutralizer 100% Outdoor Air Ventilators

WARNING:

Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.

This manual is the property of the owner, and is required for future maintenance. Please leave it with the owner when you complete the job.

Part # 457502

June 1998

TABLE OF CONTENTS

Warranty............................................................................................................Pg. 2

Installation Instructions:

NV-45

•Horizontal Discharge................................................................................Pg. 3

•Downblast Discharge............................................................................Pg. 4-5

NV-90 and NV-120

•Slab, Rail, Curb Installation...................................................................Pg. 6-7

•Equipment Supports, Discharge Locations............................................Pg. 8

•Curb Installation .................................................................................Pg. 9-11

•Installing Filter/Coil Section and Weatherhood.................................Pg. 10-11

Electrical Instructions......................................................................................Pg. 12

System Startup.................................................................................................Pg. 13

Coil Instructions..........................................................................................Pg. 14-16

Trouble Shooting..............................................................................................Pg. 17

General Dimensions and Weights.....................................................................Pg. 18

Maintenance.....................................................................................................Pg. 19

Maintenance Notes...........................................................................................Pg. 20

Warranty

Greenheck warrants this equipment to be free from defects in material and workmanship for a period of one year from the purchase date. Any units or parts which prove to be defective during the warranty period will be repaired or replaced at our option. The motor is warranted by the motor manufacturer for a period of one year. Should the motor prove defective during this period, it should be returned to an authorized motor service station. Greenheck will not be responsible for any installation or removal costs

Due to continuing research, Greenheck reserves the right to change specifications without notice.

INTAKE

DISCHARGE

INTAKE

Equipment Support Footprint

(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).

(fig.2) (fig.3)

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.

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.

A -Equip. Support CL441/4"

(fig.1)

Typical Installations

Recommended Duct Size/Location and Intake Dimensions

Minimum Straight Duct Length - 54”

Installation Instructions for:

NV-45 w/Horizontal Discharge

C L

Rectangular Curb Footprint

C L

A/2

Roof Opening

A/2

*C- Determine equal dimension for these 3 locations

Sealant

Ductwork

Duct Adaptor

Supply Ductwork by Others

Step 1 Roof Opening

Determine the center of the supply duct roof opening. The chart below shows the maximum recommended roof opening dimensions. These sizes can be smaller based on codes and ductwork sizes.

A - Max Roof Open. Sq. 47"

Supply Duct CL to

B - 881/2"

Equip. Support C

Before beginning this installation:

Make sure that there is room to access the unit from all sides. Make sure inlet of unit is located well away from any exhaust fans.

Step 3 Install Ductwork

The chart shows at left shows the duct sizes and straight lengths recommended for optimal performance (AMCA Publication 201-90). Using duct sizes less then recommended lengths will affect fan performance. Good duct installation practices should be followed for the remaining ductwork. The use of a duct adapter with the supply duct is strongly recommended to properly align the ductwork with the supply fan discharge. The duct adaptor is only a guide and is not intended to be used as support for the ductwork.

Step 4 Apply Sealant

Before installing unit apply a sealant or a gasket around the perimeter of the supply duct adaptor to isolate the fan and minimize vibration.

For Installations using rectangular curb

Recommended Supply Ductwork Sizes

Straight

Duct Duct

Size Length

16 x 16 54"

Installation Instructions for:

NV-45 w/Downblast Discharge

Step 2 Install Roof Curb and

Equipment Support

For rectangular curbs, center curb on 3 sides of roof opening, as shown in above installation diagram, by

determining C dimension (varies per unit/curb size). For either installation, level the curb and shim if necessary. Attach curb to roof and flash in place.

If equipment support is needed, refer to chart in step 1 for dimensional location based on NV unit size. Attach to roof in the same manner as the curb. Remove metal cover, flash to wooden nailer, and reinstall cover.

Model TSU Supply Unit

Lifting Lugs

(4 places)

Step 5 Install Supply Unit

Use a crane and a spreader bar hooked to the factory lifting lugs (as shown in the diagram) to lift and center the NV unit on the curb and equipment support. Use self-tapping sheet metal screws to fasten unit to the curb and equipment support through holes provided.

Electrical and pipes connections can be made at this time.

Complete Installation

Illustration shows the complete installation of downblast NV with filter section and weatherhood.

GREENHECK

Before beginning this installation:

Make sure that there is room to access the unit from all sides. Make sure inlet of unit is located well away from any

exhaust fans.

Installation Instructions for:

SLAB, RAIL, AND CURB MOUNTING NV-90 and NV-120 w/Horizontal Discharge

Lifting Lugs (4)

Spreader Bar

NV Unit

Intake

1a. Slab Construction

Recommended Size: 1ft. wider and longer than total unit size. Recommended Material: Concrete at least 4" thick. Slab should be set and leveled on a sufficient bed of gravel for proper drainage.

1b. Install Unit

Use a crane and spreader bar to prevent damage to unit. Lifting lugs are provided as shown in illustration.

Its is highly recommended that all accessory items be lifted separately and attached after the NV unit is in place.

Unit may be fastened to slab through lifting lugs.

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