Tamarack Technologies HV2800 Kaze User manual

Order#:
S/N:
(Required for Warranty)
HV2800 Kaze Direct-Mount
Whole House Fan
with
Drop Down Door
HV2800D
Venti Ducted
Whole House Fan
with
Drop Down Door
Page 1
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020
HV2800 Kaze (Direct Mount) & HV2800D Venti (Ducted)
WHOLE HOUSE FAN
INSTALLATION & OPERATION MANUAL

Thank you for purchasing an Tamarack Technologies, Inc.® Whole House Fan.
our fan has been designed to provide your home with natural, quiet, and energy-efficient cooling for many years.
Please take a few minutes to read over this manual and its accompanying documents to make sure you are
prepared to install the fan.
Before installing this fan, inspect it and all of its parts for any damage that may have been sustained during
shipping. DO NOT INSTALL DAMAGED EQUIPMENT. If you suspect this fan was damaged during shipping,
contact Tamarack Technologies, Inc. technical support by phone at 1.866.448.4187, or email at
[e-mail].
Whole House Fans are designed to be installed within a home’s attic, which makes them and their sub-
components extremely difficult to access once installed. Test this fan outside of the attic Before in-stalling it.
Connect the fan to its controls and to a power supply, and ensure it operates properly by turning it on and cycling
through its speed settings. If any difficulties are encountered, contact Tamarack Technologies, Inc. technical
support at
1-800-222-5932 or by email at [e-mail]
THEORY OF OPERATION
As a home heats up during the day, a large amount of heat is retained in its structure and contents. These
materials give off their heat slowly and continue to heat the home’s interior even if the outdoor temperature is
comfortable. Homeowners are then forced to endure either uncomfortable hot indoor temperatures, or the
expense of air conditioning. Tamarack Technologies, Inc.® and Ventura® whole house fans resolve this
dilemma by exhausting hot indoor air out of, and drawing cool outdoor air into, the home.
Each of our fans has been designed for quiet and efficient operation. As such, we strongly recommend running
this fan through the night to extract the maximum possible amount of heat from the home. This not only helps
maintain a comfortable indoor temperature, but essentially “pre-cools” the home ahead of the next day’s rise in
temperature, which reduces, or can even eliminate, the need for traditional air conditioning.
Fan Location Guidelines
• Locate this fan in a central location away from windows that will be opened to promote an even replacement
of air throughout the home and greater cooling effect.
• Locate this fan at the highest point possible to exploit natural convection and help exhaust the hottest indoor
air from the home.
• In a two-story home, the ideal location for this fan is typically in the open area at the top of the stairs.
• Avoid locating this fan in a narrow space or over hard flooring as the reflection of sound off of hard surfaces
can amplify its perceived noise.
• We specifically recommend against locating this fan in a bedroom as humans’ perception of noise is far
greater when the surrounding environment is quiet (such as within a bedroom at night).
• Within the attic, locating the fan near an electrical outlet or power supply can minimize the need for
additional electrical work.
Page 2
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

Required Attic Ventilation
It is critical that the attic be sufficiently ventilated for this fan to operate properly. Without adequate ventilation,
hot air cannot easily escape from the attic, which creates back-pressure that can substantially reduce the fan’s
performance. Specifically, operating this fan in an attic with less net free ventilation area than recommended will
decrease its airflow and energy efficiency.
CEC Required
Minimum Net
Free Vent Area
4.3 ft2
Tamarack
Technologies,
Inc.
Recommende
d Net Free
Vent Area
6 ft2
Venting requirements vary by fan. We recommend a minimum of 1 square feet of “net free” ventilation area per
500 cfm at a fan’s highest speed. The Tamarack Technologies, Inc.® minimum attic venting requirements for
drop down and ducted drop down door unit ole house fan is given in the chart at above.
Net free ventilation area can be provided by any combination of gable, eyebrow, roof cap, soffit, or ridge vents, or
any other method of ventilating the attic space.
However, the openings of most vents are partially obstructed by grilles, louvers, and/or screens. A vent’s “net
free” ventilation area is then the surface area of its opening minus the surface area of any grilles, louvers, or
screening covering it. Different types of vents have different ratios of net free area to total area.
Manufacturers typically publish their vents’ net free ventilation areas and/or ratios in their products’ specification
documents. If this information is unavailable, a ratio of 50% net free area to total area is usually a good rule of
thumb. The most notable exception to this rule of thumb are ridge vents. The industry standard net free ventilation
area for ridge vents is 13% of the vent’s length in feet. Thus, a ten foot ridge vent would provide 1.3 sq. ft. of net
free ventilation area.
While in our experience most properly constructed homes have adequately ventilated attics, not all do. Because
sufficient ventilation is so critical to this fan’s performance, it is important that the home’s existing ventilation be
verified before it is installed.
Since most attics have multiple vents, often of different types, it is necessary to count each vent, noting its type
and size. Apply the appropriate ratio to the dimensions of each vent to find its net free area, and sum these values
to find the attic’s total ventilation. An example of how these calculations are made is given in the chart below.
Vent
Type
Dimensions Total Area Net Free Area
Ratio (“NFA”)
Net Free Ventilation Area
(=Total Area x NFA)
Louver 24" × 24" 24" × 24" ÷ 144 = 4 ft.2 50% 4 ft.2 × .50 = 0.89 ft.2
Ridge 10 feet n/a 13% 10 feet × .13 = 1.33 ft.2
Round
Soffit
10" diameter 3.14 × 5" × 5" ÷ 144 = 0.55 ft.2 50% .55 ft.2 × .50 = .28 ft.2
Total Net Free Ventilation Area 1.57 ft.2
Page 3
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

SAFETY INFORMATION
Some of the principles of this product’s safe installation and operation
are not immediately obvious. Read the following safety information
before continuing further:
• Never operate this fan without a window or door opened.
• This fan is meant for general ventilation.
It has NOT been designed to ventilate particle laden and / or explosive mixtures of air.
• This fan is not for use in kitchens.
• Never force open the damper door(s), this could severely damage the actuator. Always depress the
actuator’s yellow clutch release before manually opening or closing the damper door(s).
(Drop Down Door only)
• Before installing or servicing this fan, switch power off at the home’s electrical panel to reduce the
risk of damaging circuit boards, fire, electrical shock, or injury.
HAND ING INSTRUCTIONS
This fan’s aluminum construction is corrosion-resistant and
extremely durable. However, this fan should NEVER be
handled using any of the Aerodynamic Wings that mount the
motor within the assembly. These Wings are highlighted in the
illustration. Always handle this fan by either its external
casing or the motor itself. ou can also handle this fan by its
hanging straps, but be careful as their edges are sharp.
SUPP IES INC UDED
Prior to beginning installation, please verify all of the following items were received with the fan:
• 2500 Fan Assembly. (see last pages for identification of parts)
• Damper Assembly (Drop Down Door or Air-Door) (see last pages for identification of parts)
• Duct Assembly with Duct Ring (Ducted versions Only, see last pages for identification of parts)
• Cube-Core Grille (incl. 4 powder-coated wood screws) (If the Ventura Air-Door was purchased)
• Adhesive-backed Foam Tape Isolator.
• Hardware Kit with square bit driver (incl. Screws / tape / strain relief for interlock)
• Digital Touch Controller package—including one Digital Touch controller, one wall mounting bracket,
mounting screws and 50 feet of red shielded CAT5 cable.
Once all received parts are verified, perform an operational test BEFORE installing it in the attic.
See pages 8 and 12 for connections to be made.
Note: ten second start up delay.
This is a good time to write down the serial number(s) on this manual, which will save you a trip to the attic if
you require Tech Support.
Page 4
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

REQUIRED TOO S & SUPP IES NOT INC UDED
In addition to the included items listed above, the following tools and supplies are required to install the fan:
• Safety Glasses
• Gloves
• Drywall Cutter
• At least 8 wood screws (1½" min. length) and washers sized to fit. (Ducted Versions Only!)
• Cordless screwdriver with Phillips head and miscellaneous drill bits
• High quality latex caulk
• Fishing tape or similar tool (to pull control cable through the wall)
E ECTRICA REQUIREMENTS
The HV2800 models require a 120 volt, uninterrupted power supply. These specifications must be taken into
account when allocating power from existing circuits. We strongly recommend providing a dedicated circuit.
This Circuit MUST be Ground Tested. This can be done easily using a receptacle tester available at most
hardware stores.
This fan has a factory-installed, 10 ft. power cord. Consider this length when choosing a location for this fan.
Depending on the location of existing outlets in the attic, the installation of an additional outlet may be required.
All wiring and connections must be made according to this manual and acceptable wiring standards. All local
codes must be followed. Consult an electrician if necessary .
INSTA ATION
Ceiling or Wall?
Tamarack Technologies, Inc. dampers can be mounted horizontally or vertically. We recommend installing this
fan’s damper in the ceiling in a horizontal orientation, keeping in mind that locating the fan as high as possible
helps exhaust the hottest indoor air from the home. The HV2800 can be installed in a wall
The HV2800 Kaze (Direct Mount Whole House
Fan) MUST be oriented this way to properly
operate the door glides.
Fig. 1
If you choose a wall install we recommend bracing the underside of the unit with additional framing, leaving
enough room to access the electronics on the top of the unit.
Page 5
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

When you have decided where and how to install the unit:
Frame in the opening yourself:
First, using appropriately sized lumber (e.g. 2" × 6", 2" × 8", etc.) cut to fit, frame in a rough opening from the
living space into the attic as shown below. Cut out the drywall inside of the framing to create the rough opening.
Best method is to drill holes in the inside corners of the created framing and then saw out the piece from the
living space. Clean-up can be made much easier by using a tarp and/or box to catch the falling debris.
To ensure that all air drawn in by the fan will be from inside the house, use a good quality latex caulk to seal all
wood-to-wood and wood-to-metal joints to create an air-tight enclosure.
INSTA ING THE HV2800 DROP DOWN DOOR ASSEMB Y
For HV2800 Kaze Direct Mount or HV2800D Venti Ducted Whole House Fan
NOTE: place the actuator on the fan side (shortest route for the actuator wire from the fan (ducted unit only))
Press the (yellow) Clutch on the actuator to open the door fully. Apply a bead of caulk around the base of the unit
and install it using the supplied screws. Mounting Screws only need to “hold” the unit in place, do not over-
tighten which may distort the door unit. See image below.
Actuator
Clutch
Release
Mounting
Hardware
Low Torque Setting
Page 6
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

Wire Bushing
Next, adhere the included Rubber Isolation Tape
to the bottom of the 2500 box unit.
Then, position the 2500 box assembly
over the Drop Down Door assembly
as shown.
Note: Wire Bushing position vs Actuator
Fasten the unit to the framing
with the included mounting screws.
Do not over tighten the screws, since this may
reduce the vibration isolation qualities of the
foam gasket.
Page 7
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

INSTA ING THE HV2800 KAZE DIRECT MOUNT FAN ASSEMB Y
Actuator Cable
Wire Bushing
Zip-Tie
Molex Connector
Note: Please read!
Untie the actuator cable (with a molex
connector) and route it through the
wire bushing as shown.
Connect the Molex Connector to the
Actuator Harness and secure the wire
with a Zip-Tie.
Page 8
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

HV2800 KAZE Direct-Mount
Determine the best place for the fan’s
electrical box to be. Either remove the
Direct Mount bracket from the
fan or find it in the kit.
Remove the two screws from the fan,
on the edge of the fan where the
electrical box is.
Take the bracket and mount it on the
box using a screw, place the bracket
outward as much as possible. But align
it as shown. NOTE: Low torque sheet
metal screw, do NOT over tighten.
Low Torque Setting
Direct
Mount
Bracket
Place the fan on the HV2800 Box as shown.
Make sure the fan is NOT sitting on any cables.
Attach the fan using the supplied screws.
Replace the screws you removed from the fan
edge under the electrical panel.
Pull
lightly on the Actuator Cable (previously installed) and apply caulk to the bushing to seal the hole.
Apply a bead of caulk to the edge where the fan meets the HV2800 KAZE Box Assembly, to seal the air path.
INSTA ING THE HV2800 KAZE DUCTED FAN ASSEMB Y
Place the Duct Ring on the HV2800
Kaze Box as shown. Attach the Duct
Ring using the supplied screws.(6
places)
Low Torque Setting
Page 9
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

Actuator Cable
Wire Bushing
Zip-Tie
Molex Connector
Note: Lift-Lock Only!
Untie the actuator cable (with a molex
connector) and route it through the
wire bushing as shown.
Connect the Molex Connector to the
Actuator Harness and secure the wire
with a Zip-Tie.
Pull lightly on the Actuator Cable (previously installed) and apply caulk to the bushing to seal the hole.
INSTA ING THE HV2800D VENTI DUCTED FAN ASSEMB Y – CONTINUED
Fan Hanging
Clips Straps Conical Side
Routing of the Duct and the Support of the bend in the
Duct influences the performance. A collapsed throat
(bend in the duct) can reduce Airflow substantially.
This can be avoided by properly supporting the throat
with the supplied webbing (see image). Avoid contact
between the duct and any metal fixtures, pipes or
conduits.
The supplied Duct has two ends, one is Conical and
the other has a straight Collar. Place the Conical side
over the Fan’s rear edge and secure using the latches
mounted on the Fan. Place the Collar side of the Duct
over the Duct Ring (previously installed) on top of the
HV2800D Box and secure in place using the self-
drilling screws as shown.
Support the Duct under the bend using the provided
polypropylene webbing. To fasten the webbing to the
attic joists, fold over the end of the webbing and
screw at least two 1½" or longer wood screws include
washers (NOT provided) through multiple layers of
webbing and into the joists.
Duct Collar
Low Torque Screws
Actuator Cable
Page 10
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020