General 8160, 3220, 8220, 3160 Owner's Manual

INSTALLATION GUIDE

Horizontal

series

HRV MODEL 8160and MODEL 8220 ERV MODEL 3160andMODEL 3220

About Us

GeneralAire offers you a complete range of products designed to improve indoor air quality, and that provides a wide selection of accessories to facilitate installation.

Our vision – To offer a complete range of GeneralAire products that satisfy environmental concerns.

Whether your needs involve ventilation, purification, humidification or filtration, GeneralAire has the customized solution for you, with its range of quality products backed by the best warranty in the industry.

Installation

1. Ventilation needs

2. Types of installation

3. GeneralAire HRV/ERV systems

4. Finding a suitable installation area for the HRV or ERV

5. Installation of the HRV/ERV

6. Rigid duct

7. Insulated flex from unit to outside wall

8. Condensation drain line

9. Devoted electric receptacle

10. Outside fresh air and exhaust air hoods

11. Fresh air and exhaust air grilles

12. Benefits of the DuotrolTMsystem

13. Balancing the unit

Functions and Controls

14. Controls and wiring

Technical Information

15. Troubleshooting

16. Wiring diagram

17. Maintenance

18. Specification and technical information

Peace of Mind

All GeneralAire products are

backed by the best limited

warranty in the industry, for

your peace of mind.

You benefit from a lifetime warranty on the core, a 10-year warranty (5 years + 5 years prorated) on our ventilation motors, a 5-year warranty on the enthalpic core, and a 5-year warranty on all other components. So you can breathe easy.

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INFORMATION FOR INSTALLERS PAGE

INFORMATION FOR HOME OWNERS AND INSTALLERS PAGE

INSTALLATION

GUIDE

Determine your ventilation needs

installation

How much fresh air do I need? Good air quality is based in part on the capacity of the home’s ventilation system.

Usually, the HRV’s or ERVs capacity is measured in CFM (cubic feet per minute) or L/s (Liters per seconds) of fresh air being distributed in the living space. The room count calculation or the air change per hour method shows you how to determine your ventilation needs.

Independent system

installation

This application uses a

devoted duct system for the

supply and the exhausting

of stale air accumulated

in the home.

It is recommended to install

fresh air grilles in all

bedrooms and living areas. Exhaust the stale air from the bathroom, kitchen and laundry room.

Independent System

A. Room count calculation

B. Air change per hour method

2. Types of Installation

1.Ventilation Needs

LIVING SPACE

Master Bedroom With Basement Without Basement Single Bedroom Living Room Dinning Room Family Room Recreation Room Other

Kitchen Bathroom Laundry Room Utility Room

TOTAL cu ft x 0.35 per hr = total

Take total and divide by 60 to get CFM

Number of Rooms CFM (L/s) CFM Required

x 20 cfm (10 L/s)= x 20 cfm (10 L/s)=

x 10 cfm (5 L/s)= x 10 cfm (5 L/s)= x 10 cfm (5 L/s)= x 10 cfm (5 L/s)= x 10 cfm (5 L/s)=

x 10 cfm (5 L/s)= x 10 cfm (5 L/s)= x 10 cfm (5 L/s)= x 10 cfm (5 L/s)=

TOTAL ventilation requirement (add last column)=

1 CFM = 0.47189 L/s

1 L/s = 3.6 m

/hr

Example: 25' x 40' house with basement

1,000 sq. ft. x 8' high x 2 (1st floor + basement) = 16,000 cu. ft. 16,000 cu. ft. x 0.35 ACH = 5,600 cu. ft. 5,600 cu. ft./60 minutes = 93 CFM

93 CFM is your ventilation need

4" to 12" maximum

Indirect Connection - Breathing Tee

Indirect Connection - Return Air Grille

2. Types of Installation (continued)

Exhaust at the

source and supply

in the return

installation

This application uses a

devoted duct system for the

exhausting of stale air accumulated in the home. The fresh air is dumped into the return air duct and is distributed thru the home by the existing supply air ductwork of the forced air system.

Make sure when using this application that your fresh air duct connection to the forced air system return air duct is at least 3' from the forced air system. You should check with your local code or the forced air system’s manufacturer.

Forced Air System

18"

*For minimum distance between return and forced air

system, check with your local building codes and forced air system manufacturer.

HRV/ERV

From Bathroom or Kitchen

To living space

There are different practices used to combine HRV or ERV to a forced air system.

Exhaust at the source

A Breathing Tee is a ventilation air supply duct with an open tee located before the connection to the return air duct. It allows the HRV to function without supply air flow rates being affected by the forced air system’s fan speed.

Leaving a gap in the ventilation air supply duct in place of the breather tee is acceptable but not recommended.

With the return air grille approach, HRV or ERV ventilation supply air is “dumped”near a grille (between 4" and 12") in the return air duct upstream of the recirculation fan.

*See your local code before making an installation.

INSTALLATION

GUIDE

Exhaust and supply in the return

installation

When using this

application make sure

that there is at least

6' between the fresh

air and exhaust air

connections of the

HRV or ERV in the return

air duct.

Supply air from HRV or ERV must be at least 3' from the forced air system. Can be different from a region to an other. You should check with your local code or the forced air system’s manufacturer.

Note

to installer

Fresh air must always be down-stream from the exhaust air in the return air duct of the forced air system.

Exhaust from the return and supply in supply

installation

When using this application make sure that the Supply air from HRV or ERV is at least 3' from the forced air system. Can be different from a region to an other.You should check with your local code or the forced air system’s manufacturer.

2. Types of installation (continued)

Simplified Connection

Forced Air System

6’

18”

HRV / ERV

6’

3’

Exhaust and supply in the return

Forced Air System

6’

18”

HRV / ERV

Exhaust from return and supply in supply

FOR MINIMUM DISTANCE BETWEEN RETURN AND FORCED AIR SYSTEM

Check with your local building codes and force air system manufacturer.

To living space

Installation Kit

Included in the installation kit:

• 4 Collars

• 2 Flexible Vinyl Ducts

• 1 Condensation Drain Line

• 1 Drain Adapter with Nut

• 4 Tie Wraps (30”)

• 16 screws (#10 x 5/8")

• 4 screws (#10 x 1")

• 4 Washers

TIPS

to installer

Removing the core unit will facilitate your job.

Figure 3.1 Pull out the inserts first then use the straps to lift the unit out of the box.

3. GeneralAire HRV/ERV systems

4. Finding a suitable installation area for HRV or ERV

Figure 3.2 Installation kit is shipped inside the unit.

Figure 3.3 Installation kit.

The HRV or ERV units should be installed in a mechanical room or as close to an outside wall as possible. This would assure a short run of insulated flexible duct.

The HRV or ERV unit must always be installed in an area where the air is tempered to avoid freezing of the condensate line. The contractor should install the unit in area that is very accessible to allow the homeowner easy access for maintenance.

It is very important to install an electric receptacle (115v) near the HRV or ERV, a separate circuit breaker is also recommended. You should have access to a condensate drain near the HRV or ERV to avoid the use of condensate pump.

INSTALLATION

GUIDE

The SPMTMsystem is supplied with the HRV or ERV to allow one person mounting of unit.

SPM

attachment system

The entire line of

GeneralAire HRV/ERV

products is designed for

installation by a single

person. “Single Person

Mounting

” will enable you to save time and effort by offering you a variable attachment system and maximizing your basement space.

TIPS

to installer

If unit is not level, improper drainage will occur and could lead to moisture and leakage problems.

TIPS

to installer

It is recommended to use approximately 16" of flexible duct (supplied in kit) between the HRV or ERV and your rigid duct (see figure 6.1). The flex duct is mounted the same way to the HRV or ERV as the insulated flex close on step 6 (see figure 6.2).

figure 5.1 Place HRV/ERV on a stepladder.

figure 5.2 Attach your four straps to the

floor joist making sure that you attach thru the washers and the grommets.

figure 5.3 Pull on the middle strap and gently push upward on the unit. Then repeat procedure on other side.

figure 5.4 When completing the procedure make sure that the HRV or ERV is leveled.

5. Installation of the HRV/ERV

6. Rigid duct

figure 6.1 Mount flex to HRV/ERV.

figure 6.2 Mount flex to rigid duct.

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