Zephyr ZAGE30AG290 User Manual

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MODELS MUA006A • MUA008A

AUTOMATIC MAKE-UP AIR DAMPER WITH
TRANSFORMER & PRESSURE SWITCH

READ AND SAVE THESE INSTRUCTIONS

FOR RESIDENTIAL USE ONLY

Page 2

WARNING

TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR
INJURY TO PERSONS, OBSERVE THE FOLLOWING:

1. Installation work and electrical wiring must be done by a qualified
person(s) in accordance with all applicable codes and standards,
including fire-rated construction codes and standards.

2. This unit is not designed to provide combustion air for fuel­burning appliances.

3. Do not connect the unit directly to a combustion appliance of
any type.

4. Sufficient air is needed for proper combustion and exhausting
of gases through the flue (chimney) of fuel burning equipment
to prevent backdrafting. Follow the heating equipment
manufacturer’s guideline and safety standards such as those
published by the National Fire Protection Association (NFPA),
and the American Society for Heating, Refrigeration and
Air Conditioning Engineers (ASHRAE), and the local code
authorities.

5. Before servicing or cleaning unit, switch power off at service
panel and lock the service disconnecting means to prevent
power from being switched on accidentally. When the service
disconnecting means cannot be locked, securely fasten a
prominent warning device, such as a tag, to the service panel.

6. When performing installation, servicing or cleaning the unit, it is
recommended to wear safety glasses and gloves.

7. During extreme weather events including snow storms, ensure
that the intake area for the outside air duct is not blocked and
able to provide a clear pathway for outside air to enter the
system.

8. When cutting or drilling into wall or ceiling, do not damage
electrical wiring or other hidden utilities.

9. When notching or drilling into framing including floor supports,
rim joists, and wall studs, comply with code and manufacturer
limitations on allowable modifications to these structural
members.

10. This unit is intended to be installed within the home in a location
protected from moisture.

11. This unit must be in an accessible location which allows for
inspection of the unit.

12. Use this unit only in the manner intended by the manufacturer.
If you have questions, contact the manufacturer at the address
or telephone number listed in this document.

13. When federal, provincial or state legislation comprises more
restrictive installation and/or certification requirements, the
aforementioned requirements prevail on those of this document
and the installer agrees to conform to these at his own expense.

CAUTION

1. Do not locate outside air inlet near hazardous materials or explosives.

2. Unit shall not be installed to introduce air from crawlspaces, garages,
attics, adjacent dwelling units, or other locations within the building
shell. Unit shall be installed to introduce air directly from outdoors.

3. Do not run the outside air duct directly above or closer than 2 ft to
any furnace or its supply plenum, boiler, or other heat producing
appliance.

4. Any ductwork used in conjunction with the Damper must be installed
in compliance with all local and national codes that are applicable.

5. Do not operate the Damper for fresh air introduction until all system
filters, including the central duct system filter, have been installed per
the system design.

6. Please read the unit specification label on the product for further
information and requirements.

7. The Damper’s outdoor air intake, ducting, and any filters should be
inspected and maintained on a regular basis.

8. Insulate the duct and damper to prevent build-up of condensation in
cold weather climates. Vapor barriers on both sides of insulation are
recommended.

WARRANTY

ZEPHYR warrants to the original consumer purchaser of its products that such products
will be free from defects in materials or workmanship for a period of one year from the
date of original purchase. THERE ARE NO OTHER WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE.

During this one-year period, ZEPHYR will, at its option, repair or replace, without charge,
any product or part which is found to be defective under normal use and service.

THIS WARRANTY DOES NOT EXTEND TO FLUORESCENT LAMP STARTERS, TUBES,
HALOGEN AND INCANDESCENT BULBS, FUSES, FILTERS, DUCTS, ROOF CAPS, WALL
CAPS AND OTHER ACCESSORIES FOR DUCTING. This warranty does not cover (a) normal
maintenance and service or (b) any products or parts which have been subject to misuse,
negligence, accident, improper maintenance or repair (other than by ZEPHYR), faulty instal­lation or installation contrary to recommended installation instructions.

The duration of any implied warranty is limited to the one-year period as specified for the
express warranty. Some states do not allow limitation on how long an implied warranty
lasts, so the above limitation may not apply to you.

ZEPHYR’S OBLIGATION TO REPAIR OR REPLACE, AT ZEPHYR’S OPTION, SHALL BE THE
PURCHASER’S SOLE AND EXCLUSIVE REMEDY UNDER THIS WARRANTY. ZEPHYR SHALL
NOT BE LIABLE FOR INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES ARISING OUT
OF OR IN CONNECTION WITH PRODUCT USE OR PERFORMANCE. Some states do not allow
the exclusion or limitation of incidental or consequential damages, so the above limitation
or exclusion may not apply to you.

This warranty gives you specific legal rights, and you may also have other rights, which vary
from state to state. This warranty supersedes all prior warranties.

To qualify for warranty service, you must (a) notify ZEPHYR at the address or telephone
number below, (b) give the model number and part identification and (c) describe the nature
of any defect in the product or part. At the time of requesting warranty service, you must
present evidence of the original purchase date.

Zephyr Ventilation, 2277 Harbor Bay Parkway, Alameda, CA 94502
www.zephyronline.com 888-880-8368

ZEPHYR ONE YEAR LIMITED WARRANTY

PLAN THE INSTALLATION

MODELS MUA006A • MUA008A

Page 3

Planning the installation first requires selecting the most appropriate
installation approach. The chart below offers suggestions for the most
effective installation approach by considering a few important factors.
Further details on the two main types of installations are provided below.



r House has central duct work?

Yes

r Return-air side of duct work is

accessible -either the return-air trunk

Yes

Damper connected to

return side of central

duct system

OUTSIDE AIR INTAKE LOCATION

Proper design and location of the outside air intake location is critical in
ensuring that the Damper can safely and reliably provide an opening for
fresh air to enter the home. The following requirements for the location
of the outside air intake must be met:

• Outside air intake is located a minimum of 10’ from combustion ap­pliance vents, chimneys, plumbing stacks, and bathroom or kitchen
exhaust vents. If local codes have more stringent separation re­quirements, they shall apply.

• Outside air intake is placed high enough above grade to prevent
blockage from snow or other debris such as leaves, and at a mini­mum of 1’ above grade.

• Make-up air damper should not draw air from crawlspaces, ga­rages, attics, adjacent dwelling units, or any enclosed part of the
building. The Damper should be installed to draw air directly from
outdoors.

OUTSIDE AIR INTAKE OPENING PROTECTION

Because the Damper, together with the end cap and outside air duct
which are installed with it, will allow outdoor air into the indoor environ­ment, it is important to meet the following requirements:

• Model AK00030 (6”) and AK00032 (8”) fresh air inlet wall caps in­clude protective bird screens to keep out animals and outside de­bris. Clean screens often and do not remove.

• If a protective bird screen other than the screen provided is used, it
must cover the entire opening of the outside air duct. This screen
must also have openings of at least ¼” but no larger than ½”.

• The outdoor air intake opening should meet local code provisions
for the protection of openings in exterior walls, including steps to
prevent moisture intrusion around the opening.

Note that the screen over the outside air opening is not a filter. It is
intended to prevent the intake of leaves, animals, or debris into the out­side air duct. A downstream filter is necessary to remove pollen, dust,
and other airborne particles. Potential filter locations are shown below
in the Typical Installations section.

or return- air plenum?

No

No

Damper ducted directly

to a ceiling, floor, or wall

register

MINIMUM RETURN AIR TEMPERATURE REQUIREMENTS

HVAC equipment manufacturers may have minimum requirements for
the air temperature in the return air plenum. Introducing outdoor air to
the return side of the central duct system may impact this temperature.
The installer should adjust both the size of the outside air duct and the
location of its connection to the return side of the central duct system in
a manner so that minimum air temperature requirements are satisfied
under design conditions.

WHAT IS INCLUDED IN THE
PACK AG E

- Motorized Damper

- Transformer

- Pressure Switch Kit which includes:

- Pressure Switch

- Probe

- 12” PVC tubing 1/4” I.D.

- Gasket

- (6) Sheet Metal Screws

TOOLS REQUIRED

- 1/4” Socket Drive

- Flathead or Phillips Screw Driver

- 3/8” Drill Bit

- Duct Tape

- Low Voltage Wire (2 Conductor)

- (2) 1/4” Female Spade Terminals

- Wire Nuts

MODELS MUA006A • MUA008A

Page 4

TYPICAL INSTALLATIONS

Installations will vary according to the location in the home where the unit is installed and which model Damper is used. Use the following
illustrations and notes as guidance for your own installation. Always comply with local code requirements and in any instance where a detail
shown below conflicts with local code, the local code provision shall apply.

CENTRAL SYSTEM SUPPLY AIR

THERMOSTAT

HEATING APPARATUS

AIR DISTRIBUTION FAN

COOLING APPARATUS

AIR HANDLER UNIT

Damper connected to return side of central duct system.

EXTERIOR WALL

EXTERIOR WALL

CENTRAL SYSTEM RETURN AIR

INSULATED OUTSIDE
AIR DUCT (slope toward wall cap)

FRESH AIR INLET WALL CAP
WITH BIRD SCREEN

VENTILATION AIR INTAKE
(locate away from pollutant sources)

FIELD MEASUREMENT OF OUTSIDE
AIR DUCT PRESSURE. (See “Install The
Damper” section on page 3 for damper
balancing instructions.)

AUTO. MAKE-UP AIR DAMPER

REGISTER BOX ADAPTED
WITH SLIDE-IN FILTER (optional)

FURNACE FILTER

INTERIOR WALL

WALL
REGISTER

INSULATED OUTSIDE
AIR DUCT (slope toward wall cap)

WALL CAP WITH
BIRD SCREEN

VENTILATION AIR INTAKE
(locate away from pollutant sources)

FIELD MEASUREMENT OF OUTSIDE
AIR DUCT PRESSURE. (See “Install The
Damper” section on page 3 for damper
balancing instructions.)

MOTORIZED DAMPER

REGISTER BOX ADAPTED
WITH SLIDE-IN FILTER (optional)

Damper and outside air duct connected directly to a ceiling, floor, or wall register.

MODELS MUA006A • MUA008A

Page 5

INSTALL THE DAMPER

TO CENTRAL SYSTEM
RETURN AIR OR INTERIOR
WALL REGISTER

AIR FLOW AIR FLOW

DAMPER FLAP (Install in
vertical position shown.)

Install the damper as shown. Make sure damper flap is in a verti­cal position when closed and power is off. The set screw can be
used to adjust the damper opening - thereby balancing the inside
and outside air pressure when the range hood exhausts at high
speed.

SET SCREW

OUTSIDE AIR

PRESSURE SWITCH
OPERATION

INSTALLATION OF
PRESSURE SWITCH AND
PROBE

For the probe & pressure switch to work effectively the roof or
wall cap must have a spring loaded damper.

The pressure switch is designed to operate when the static
pressure increases to 0.05” Ps or more. It may not operate at low
speeds since the pressure is below this limit.

MULTIPLE DAMPERS

More than one damper may be required to balance the system.
If more than one is required use (1) MUA006A or MUA008A
and then use the 54060012 (6”) or 54060013 (8”) dampers as
additional dampers.

MODELS MUA006A • MUA008A

ROOF CAP

LOCATION OF PROBE AND PRESSURE SWITCH

Page 6

The probe must be mounted between the range hood damper
and the wall cap, roof cap, in-line blower or external blower.
Mount the probe as close to the hood outlet as possible but
make sure the hood damper operation is not affected.

w/DAMPER

IN-LINE
DAMPER

HOOD
FLUE

TYPICAL INSTALLATION WITH

INTERNAL BLOWER AND ROOF VENT

EXHAUST
DUCT

PRESSURE
SWITCH

PROBE

RANGE
HOOD

The pressure switch should be mounted so it is accessible for
any future service. The switch can mounted no more then 72”
away from the probe. If longer tubing is required then what is
supplied, purchase 1/4” I.D. PVC tubing from a local source. See
the illustrations below for possible installation scenarios.

ROOF CAP
w/DAMPER

INLINE
BLOWER

EXHAUST

HOOD
FLUE

TYPICAL INSTALLATION WITH INLINE BLOWER

DUCT

PRESSURE
SWITCH

PROBE

RANGE
HOOD

IN-LINE
DAMPER

HOOD
FLUE

EXHAUST
DUCT

PRESSURE
SWITCH

PROBE

TYPICAL INSTALLATION WITH

KITCHEN
CABINET

PRESSURE
SWITCH

RANGE
HOOD

TUBING

PROBE

WALL CAP
w/DAMPER

RANGE
HOOD

WALL CAP
w/DAMPER

HOOD
FLUE

EXTERIOR
BLOWER

EXHAUST
DUCT

PRESSURE
SWITCH

PROBE

RANGE
HOOD

TYPICAL INSTALLATION

WITH EXTERIOR BLOWER

TYPICAL INSTALLATION WITH

INTERNAL BLOWER AND HORIZONTAL