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.
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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

Make sure the Actuator Cable is properly routed.
Put on Gloves and move the fan into the best possible position in your attic and as far away from the HV2800 Box
as possible while still allowing proper routing.
Note; Face of the Fan MUST remain unobstructed, 24 inch minimum clearance required. Route all wiring away
from the face of the Fan to prevent entanglement
Suspend fan from rafters using hanging strap. Secure hanging strap to rafters using wood screws
(at least 6 x 1½" (minimum length), NOT provided) through the pilot holes on the straps; washers recommended
between screw heads and straps. USE BOTH STRAPS AND KEEP FAN AS LEVEL AS POSSIBLE.
Once the Fan and Duct have been hung, seal the joint between the Fan and the Duct with the aluminum foil tape
provided. It is acceptable to mount the wiring to the Duct with a small piece of tape. If the Duct’s Mylar cover was
torn, a piece of tape can be used to seal the tear to seal the duct again.
INSTA ATION WIRING AND CONTRO
The Digital Touch Controller provided with this fan is necessary
for operating it, and must be connected to it regardless of
whether the controller will be installed in a wall.
This fan will not function if not connected to a digital touch controller!
If it is not desired to be installed in a wall, the controller can be connected to the fan and kept in the attic with the
CAT5 cable kept spooled. Note: you will need a remote to operate it.
The standard control package included with this fan contains 1 wall-mounted Digital Touch Controller plus screws;
1 mounting bracket for the controller; and 50 ft. of red Shielded CAT5 cable.
First, locate the desired location for the Digital Touch controller.
Install the mounting bracket according to figures A–C below.
Return to the attic and connect the red CAT5 cable to the RJ45 port on the control box labeled W/S.
Run this cable from the electrical box to the location of the controller. NOTE: this is a low-voltage cable, DO NOT
RUN IT PARALLEL TO HIGH-VOLTAGE WIRING; building codes generally require low-voltage cable to be run
through shielded conduit.
NOTE: Carefully unwind and run the CAT5 Cable down the wall,
AVOID kinks as this can damage the Cable conductors!
Connect the CAT5 cable to the RJ45 port on the back of the Digital Touch controller.
Mount the controller to the mounting bracket with the provided white screws, DO NOT OVER-TIGHTEN (figure D)
Fig A: Fig. B: Fig. C: Fig. D:
Use the mounting Cut out the hole. Place the mounting Connect the CAT5 cable.
bracket as a bracket and secure Mount the face plate to the
template to mark its locking tabs by bracket with the provided
the hole location. tightening the silver screws white screws (see Note 2:)
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HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

All wiring connections to the fan assembly are made at the fan-mounted electrical box.
These are a 10 ft, black, factory-installed power cord, and two RJ45 (“Ethernet”) ports for connecting the fan
controls and accessories (see below) Color Match Cable and Jack Identification
Blue 5 ft CAT5 Ethernet Cable
Connect to RMT and Receiver
Optional Remote Receiver
10 ft Power Cable Connect to
Wall Outlet
RED 50 ft, CAT5 Shielded Ethernet
Cable Connect to W/S and DTC
PURCHASE OPTIONS (not included)
A wireless remote is an available accessory option for this fan. The wireless remote is NOT included as part of this
fan’s standard control package. The yellow manual included with these accessories provides specific instructions
for the installation and operation of the remote.
If purchased , the wireless remote receiver is connected to the fan-mounted electrical box at the blue RMT RJ45
port.
Page 12
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

START-UP AND OPERATION
Before starting this Fan for the first time, verify that:
1. All wiring and connections have been made according to this manual and acceptable wiring standards, and that
this manual and all local codes and standards have been followed in this fan’s installation.
2. No tools or construction debris have been left in, on, or around the fan.
3. The fan’s power cord has been plugged into a ground tested, 120-volt outlet with uninterrupted power.
4. The area in front of the fan’s outlet is as unobstructed as possible, with no object closer than 24” to the face of
the fan.
When running this fan for the first time, make sure to observe it turning on, running at all of its speed settings, and
turning off. Observe from both the attic (to observe the fan(s) itself) and the living space (to observe its damper
door(s)), also verify Timer works at 1 Hour Setting.
As shown, there are four buttons on your fan’s control interface:
When the Digital Touch Controller (DTC) is connected to the fan, and the fan to power, a red LED will illuminate.
See the Power Indicator shown above. If the Power Indicator is not illuminated; double-check the connections
between the fan and the controller, between the fan and the power outlet and power at the outlet.
The Tamarack Technologies, Inc. HV2800 KAZE and HV2800D VENTI has ten speed settings. Turn on the Fan by
touching FAN UP or TIMER UP. Its door(s) will open and there will be a 10 second delay before the fan begins to
operate . The fan will start at minimum speed. Green LED’s will illuminate to indicate the speed setting.
If the Fan was turned on by TIMER UP, the timer will be set to one hour and blue LED’s will illuminate to indicate
the timer setting. Press or hold FAN UP to increase the fan’s speed to maximum. Press or hold TIMER UP to
increase the length of time the Fan stays on in one hour increments until the desired time, or the maximum time
of 12 hours, is achieved.
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HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

If the fan is already operating at minimum speed, touch FAN DOWN/OFF to turn off the fan; any time remaining on
the timer will be canceled. If the fan is at maximum speed, press or hold FAN DOWN/OFF to decrease the speed to
minimum and once again to turn the fan off.
Press or hold TIMER DOWN/CANCEL to reduce the time on the timer by one hour increments until the desired time
is achieved or the timer is canceled. When the timer expires, the fan will turn off automatically. If the timer is
canceled, the fan will remain on at its current speed.
Whenever the fan is turned off, its damper door(s) will close tightly within about 60 seconds.
* Note: If untouched after a moment the selection LED’s will dim.
OPERATING TIPS
• Never operate your whole house fan without also opening a window or door.
Doing so can excessively depressurize your home.
• Only operate your whole house fan when the outdoor air temperature is cooler than the
indoor temperature.
• Make sure your air conditioner and furnace are off before you turn on your whole house
fan. Running either of these together with your whole house fan wastes energy and money because
the fan will force expensively conditioned or heated air out of your home.
• Use your whole house fan’s higher speed settings to cool your home quickly in the evening.
Then, switch to its lower settings to run it quietly and efficiently through the night.
• We recommend you run your whole house fan through the night.
Here’s why: The goal of using a whole house fan is to cool your entire home, not just the air inside it.
Once heated, your home’s structure and contents continue to radiate heat until reaching the
temperature of the surrounding air. By running your fan through the night, you speed up this cooling
process and can then further “pre-cool” your home, reducing or eliminating the need to use air
conditioning the next day. Tamarack Technologies, Inc. fans are extremely efficient, so operating
your fan in this
way is very inexpensive, especially compared to the cost of air conditioning.
• If your home has a basement, extra cooling can be achieved by drawing in air through the basement
windows.
• ou can control where your fan’s cooling effect is concentrated by adjusting the location of
the windows you open. Visualize the path air will travel from the windows to your fan’s opening.
Generally, the longer the path, the more cooling.
Page 14
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

DIGITA TOUCH CONTRO ER (DTC) CONFIGURATIONS
The function of the Digital Touch Controller is dependent on the configuration of the DIP switches and
pin jumper located on the back of the PCB. The jumper pins are located to the left of the RJ45 port, and
the DIP switches are immediately below it.
The jumper is configured by placing it to connect two of the three pins, as shown. *
The DIP switches are configured by switching them to the ON or OFF
position, depending on the switch number. A DIP switch in the ON position
is set away from its number, and towards the side labeled ON, as shown.
MODE JUMPER SETTING DIP SWITCH
SETTING
HV2800 (Kaze Direct-Mount or
HV2800D Venti Ducted)
Pin 1-2*
(time delay**)
*Pin 1-2 = 24VDC PWM / Pin 2-3 = 0 – 10 VDC Control Signal
** Time delay allows the door(s) to open before the fan starts
Rear View of the
Digital Touch Controller
RJ45 Jack
Jumper
Dip Switch
Page 15
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

MAINTENANCE
There is no routine maintenance required for the Fan other than making sure the Fan and its damper door(s)
remain clear of dust or debris, and that the area in front of the Fan remains as unobstructed as possible, with no
object closer than 24" to the face of the Fan.
A re-settable circuit breaker is located on the Fan-mounted electrical box to protect circuit boards from power
surges. In the case of a power surge, this breaker can be reset by simply pushing the button back in.
If you Purchased the HV2800 Kaze Direct Mount or HV2800D Ducted Whole House Fan Lift-Lock with Actuated
Drop Down Door, it would be prudent to inspect the door lever hardware (are all screws, nuts tight) and the
glide assemblies and lubricate them if needed.
Use a lithium spray or silicone spray to lube the bearings. Check for smooth operation of the drop down door.
Inspect the Door Connection Brackets on the door and the connection with the glides.
TROUB ESHOOTING
Before servicing your whole house fan, turn off power to it at your home’s electrical
panel to reduce the risk of electrical shock, injury, fire, and/or circuit board damage.
our Tamarack Technologies, Inc. Whole House Fan has been factory tested. If you encounter problems with
the unit,
please take a few minutes to run through the following troubleshooting procedures
before calling for technical support.
NOTE: a “kinked” CAT5E Cable may cause all of the listed symptoms. Use a second short cable and plug the wall
switch (controller) directly into the W/S port on the fan to rule out a cable issue before proceeding.
Symptom: Unit does not start
Possible causes: No power to unit or kinked Ethernet Cable
Suggestion 1: Is the Red LED on the DTC on? Reset the DTC Power (see Start-Up & Operation).
Suggestion 2: Check the re-settable circuit breaker on fan’s electrical box.
Suggestion 3: Take DTC into the attic and connect it to the W/S port using another CAT5 Cable.
Suggestion 4: Check power (115VAC) at the electrical outlet, inside the fan’s electrical box wiring at both the
power supply (115VAC) and the SCAB* (24VDC inside the fan’s electrical box).
Symptom: Door(s) does not open, but Fan starts (actuated units only).
Possible causes: No power to damper, or damper shaft loose.
Suggestion 1: Operate door(s) manually using the Actuator Clutch . Verify that the Actuator rotates with
the door shaft and that the shaft rotates with the door.
Suggestion 2: Check for 24VDC at the actuator(s) harness and at the SCAB* (fan’s electrical box)
Symptom: Door(s) open but Fan does not start (actuated units only).
Possible causes: Wiring issue between SCAB* and Fan
Suggestion 1: Open Fan’s electrical box and check for power (115VAC) at the fan’s power wires.
Suggestion 2: Check for pwm (control 0-24V) signal at fan’s control wire connections on the SCAB*.
*SCAB = Simple Controller Attic Board / FAN MOUNTED CONTROL BOARD
Symptom: Wireless remote does not Operate.
Possible causes: Battery, RF interference.
Suggestion 1: Check transmitter’s battery for power. Replace if necessary.
Suggestion 2: Check to see if LED on the remote receiver is lit. Open the cover and see if internal LED’s
respond by pressing a button on the remote.
Suggestion 3: Temporarily replace the CAT5 Ethernet cable.
Suggestion 4: Check for red LED response on DTC when pressing the remote buttons.
If problems are encountered, please take a few moments to run through the troubleshooting procedures
described on the blue Warranty Card. If these suggestions do not work, contact Tamarack Technologies, Inc.
technical support at 1-800-222-5932 M-F Eastern Time or by email at [e-mail] for further assistance.
Page 16
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

SPECIFICATIONS HV2800 KAZE DIRECT-MOUNT
Minimum Frame Thickness: 3 7/8” (3.875” Ceiling = 2 x 4 + drywall)
Dimensions Fan: Ø 21.5" × 12.5" (diameter × depth)
25 lbs
24.46” x 22.12” x 14.29” (L x W x H)
Weight Fan:
Dimensions HV2800 Kaze
Box: Weight Box:
12.5 lbs
Dimensions Lift-Lock: 22.4” x 14.42” x 17.14” (L x W x H)
Insulation Lift-Lock: R-5
Weight Lift-Lock:
Tested Airflow*:
Tested Power*:
Tested Noise**:
Rough Opening:
Electrical:
Installation:
Controls:
Speed Settings:
Warranty:
14.5 lbs
1026 / 2800 CFM (Low / High)
15.2 / 355 Watts (Low / High)
43 / 60 dBA (Low / High)
14.5" × 22.5"
120 VAC, 60 Hz, 15 amps
16" or 24" O/C joists
Low Voltage, Digital Touch Controller,
optional wireless remote
10
3 years parts; 1 years controls
* Actual performance will vary from installation to installation.
** Tested at 45º and 1 meter from source.
Due to continual product improvement, performance ratings and specifications are subject to change without notice.
Page 17
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020

SPECIFICATIONS HV2800D VENTI IFT- OCK DUCTED
Minimum Frame Thickness: 3 7/8” (3.875” Ceiling = 2 x 4 + drywall)
Dimensions Fan: Ø 21.5" × 12.5" (diameter × depth)
Weight Fan: 25 lbs
Dimensions Duct: Ø 20" × 7 feet (diameter × length)
Weight Duct: 11.5 lbs
20" x 2.6” AL (diameter x height)
24.46” x 22.12” x 14.29” (L x W x H)
Duct Ring:
Ø Dimensions HV2800 Box:
Weight Box:
12.5 lbs
Dimensions Lift-Lock: 22.4” x 14.42” x 17.14” (L x W x H)
Insulation Lift-Lock: R-5
Weight Lift-Lock:
Tested Airflow*:
Tested Power*:
Tested Noise**:
Rough Opening:
Electrical:
Installation:
Controls:
Speed Settings:
Warranty:
14.5 lbs
628/ 2500 CFM (Low / High)
15.2 / 355 Watts (Low / High)
43 / 57 dBA (Low / High) 14.5"
× 22.5"
120 VAC, 60 Hz, 15 amps
16" or 24" O/C joists
Low Voltage, Digital Touch
Controller, optional wireless
remote
10
3 years parts; 1 years controls
* Actual performance will vary from installation to installation.
** Tested at 45º and 1 meter from source.
Due to continual product improvement, performance ratings and
specifications are subject to change without notice.
Page 18
HV2800 Kaze/HV2800D Venti Whole House Fan Installation Manual, HV2800.4
©Tamarack Technologies, Inc All Rights Reserved 2020