Greenheck Outdoor Air Ventilator Guía

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 C

L441/4"

(fig.1)

Typical Installations

Recommended Duct Size/Location

and Intake Dimensions

Minimum Straight Duct Length - 54”

Installation Instructions for:

NV-45 w/Horizontal Discharge

Rectangular

Curb

Footprint

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 C

L 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.

Rails located 6-12" in

from sides of unit.

Rails extend 6" from

end of filter section

Rails extends 6" from

discharge end of unit

Lifting Lugs (4)

Spreader Bar

2. Rail Mounting

For proper support, rails should be located

6-12" in from sides of unit and should

extend at least 6" beyond both discharge

end of unit and filter section.

3. Curb Mounting

(See page 9 for curb assembly)

Install unit on curb using a crane and

spreader bar to prevent damage to unit.

Lifting lugs are provided as shown in

illustration.

It is highly recommended that all accessory

items be lifted separately and attached

after the unit is set in place.

Straight

ABCDDuct Length

NV-90 161/424 34 1/2223/881

NV-120 161/4251/234 231/496

5. Attach Ductwork to Unit Discharge

Chart and drawing below show opening size (ID) and location for discharge collar. Also included is the

recommended straight duct lengths for optimal performance. Greenheck recommends attaching

ductwork using a rubber duct section at the unit to eliminate vibration.

Discharge Opening Sizes

Back View

NV-90 and NV-120

Straight Duct Length

4. Optional Up-stream Heating Coil

If an optional up-stream heating coil is provided with the unit an additional equipment support may be required. If

filters only are provided in this section, additional support is not needed. Follow the guidelines below for

determining the coil section support required. Page 18 lists unit weights for equipment support load

requirements.

Equipment Support Requirements: Slab/Rail Mount Curb Mount

NV-90 None Curb Height

NV-120 12” Curb Height + 12”

Equipment Support

Cement Slab

Coil Section

Typical NV-120 installation

on cement slab with

optional up-stream heating

coil section .

See page 10 for attachment

instructions.

Installation Instructions for:

CURB MOUNTING*

NV-90 and NV-120

*For installations using Greenheck's

optional roof curb.

1. Assemble Roof Curb

Curbs are shipped knockdown and require assembly

by others. Assembly instructions are also included

with curb.

Assemble curb sections as shown using hex bolts and

lock nuts supplied with curb.

Detail shown is typical for all four corners.

Recommended

Roof Opening

(36"x36")

1031/2

431/4

405/8

241/4

41/2

Roof Curb

813/16

4. Install Ductwork

The following chart shows the duct sizes and straight

lengths recommended for optimal performance (AMCA

Publication 201-90). Using duct sizes less than

recommended lengths will affect fan performance. Good

duct installation practices should be followed for the

remaining ductwork.

Roof Opening

Ductwork

by Others

Roof Curb

Straight

A B C D Duct Length

NV-90 24 93/824 301/481

NV-120 26 91/226 291/496

Duct Locations:

2. Locate and Cut Roof Opening

When locating unit, make sure there is room to access unit

from all sides. Make sure inlet of this unit is located well

away from exhaust fans.

Roof Opening for NV-120 and NV-90 = (A) 36" x (B) 36"

3. Install Curb

Located curb over roof opening with dimensions shown to

the right and fasten in place.

Check that diagonal dimensions are within

± 1/8" of each other and adjust as necessary. Shim as

required to level.

5. Install Unit.

Use a crane and spreader bar to prevent damage

to unit. Lifting lugs are provided as shown in

illustration.

It is highly recommended that all accessory items

be lifted separately and attached after the unit is

in place.

Electrical and pipe connections can be made at

this time.

Lifting Lugs (2)

Spreader Bar

Butt units together

Fasten through

both flanges.

KSU Unit Filter/Coil Section

Filter /Coil section fastener locations

typical for entire section.

Top fasteners are accessed from

outside, side fasteners are accessed

from inside, bottom fasteners are

accessed from underneath filter section

(Note: bottom fasteners are not required

for slab mounted units).

Detail A

6. Attach Filter/Coil Section (if included)

Use a crane and spreader bar hooked to factory

lifting lugs (as shown in diagram) to lift and center the filter section on the NV unit. Note that the top U-

shaped flange on the filter section fits over the vertical flange of the NV unit (see detail A). Use sheet metal

screws to fasten the filter section to NV unit. Mounting holes are prepunched, see diagram for approximate

hole locations.

Filters ship separately. To install, remove side panel on filter section and slide into filter channels. Note

arrows on filters for correct orientation.

Note:

If the optional up-stream heating coil

section is included with the unit, special

support for this section is required. See

page 8 for requirements.

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