Field Controls VentCool Summit S-Class Series Bedienungsanleitung

www.eldcontrols.com

Please retain these instructions after installation.

This device MUST be installed by a qualied agency in accordance with the manufacturer's installation instructions. The denition of

a qualied agency is: any individual, rm, corporation or company which either in person or through a representative is engaged

in, and is responsible for, the installation and operation of HVAC appliances, who is experienced in such work, familiar with all the

precautions required, and has complied with all the requirements of the authority having jurisdiction.

Installation Date:

Installed By: Phone:

P/N 780104700 03/20 Rev A

WHOLE HOUSE FAN SYSTEMS

MODELS: S6.5 (Generation 4)

INSTALLATION MANUAL

ITEMS INCLUDED:

• (2) Fan Assembly with steel support straps, hardware and 20 foot power cord

• (2) Duct Support Straps & hardware

• (2) Acoustic Flex Duct, 7 foot length with collars

• Gravity Damper Assembly

• “Eggcrate”style Inlet Grille (white) with mounting screws

• Wall Mount WTT Control (ON/OFF, 3 speed and 12-hour timer) and white Decora

wall plate

page 2 of 20P/N 780104700 03/20 Rev A

(THIS PAGE LEFT INTENTIONALLY BLANK)

page 3 of 20

SAFETY CONSIDERATIONS

• Never operate this fan without windows or doors opened. Refer to specication table for required minimum

Open Window Ventilation Area in square feet when operating whole house fan.

• This fan is meant for general ventilation. It has NOT been designed to ventilate particle laden and/or explosive

mixtures of air and must NOT be used for such.

• This fan is NOT for use in kitchens

• Before installing or servicing this fan, switch power o at the home’s electrical panel to reduce the risk of

damaging circuit boards, re, electrical shock, or injury.

• Install this fan in accordance with this manual and all local codes and standards.

Some of the principles of safe installation and operation of this product are not immediately obvious.

Read the following safety information before continuing further:

Thank you for purchasing a VentCool

®ducted Whole House Fan by Field Controls. This fan has been designed

to provide many years of natural, quiet, and energy-ecient cooling.

Please take a few minutes to read over this manual and its accompanying documents to make sure you are

prepared to install the Whole House Fan system. In particular:

• The homeowner/resident should read the WHERE TO LOCATE section so that the fan will be correctly lo-

cated to maximize its eectiveness and eciency.

• The VENTILATION REQUIREMENTS section is also particularly important, as it describes the minimum attic

ventilation neccessary to operate the fan.

• The INSTALLATION: GRAVITY DAMPER section contains important information regarding the constraints

within which this fan’s gravity damper must be installed.

The Eggcrate Inlet Grille and Gravity Damper Assemblies come in dierent size openings. Verify which gravity

damper component design is part of your Whole House Fan Assembly by actual measurement of the gravity

damper opening section before beginning installation of gravity damper section.

Before installing this fan, inspect it and all of its parts for any damage it may have sustained during shipping.

DO NOT INSTALL DAMAGED EQUIPMENT. If you suspect this fan has been damaged during shipping, contact

Field Controls technical support by phone at 1.800.742.8368, or email at eldtec@eldcontrols.com.

Whole House Fans are designed to be installed within a home’s attic, which makes them and their sub-components

dicult to access once installed. TEST THIS FAN OUTSIDE OF THE ATTIC BEFORE INSTALLING IT PERMANENTLY.

P/N 780104700 03/20 Rev A

page 4 of 20

GRAVITY DAMPER INFORMATION

ELECTRICAL REQUIREMENTS

The VentCool ECM Summit Series Whole-House Fan Systems require a 115 volt electrical power supply

of minimum 15A ampacity and maximum 15 Amp circuit overcurrent protection. We strongly recommend

providing a dedicated circuit for this fan system. This model has two fan assemblies.

All electrical components, whether included with the VentCool system or supplied by others, must be rated for

the fan system’s electrical load requirements; please refer to the VentCool Summit Series specications table

for the electrical load requirements of the specic model to be installed.

All wiring and connections must be made according to this manual and all applicable electrical wiring codes

and standards. All applicable electrical codes must be followed to the satisfaction of the local authority having

jurisdiction.

VentCool Summit Series Whole House Fan Systems are shipped with a pre-wired 20 foot 115VAC power cord

with Nema 5-15P plug and fan control module (FC3JF) prewired and installed on the fan assembly. The fan

assembly directly connects to the Vencool digital wall control (WTT) system via 50 foot Plug&Play (P&P) cable.

The P&P cable is equipped with RJ12 connectors that plug directly into the fan assembly control module

and backside of the wall control display. The wall control display is mounted in the living space and is used

for fan control (on/o, timer operation or temperature operation) of the whole house fan system. Refer to

INSTALLATION: Wiring & Controls section for wiring and connection diagrams for the Ventcool Summit Series

Whole House Fan (Generation 4) product line.

The Ventcool Summit Series Whole House Fan Systems have dierent gravity damper sizes, depending on

the specic model to be installed. Verify which gravity damper size is provided with your system prior to

beginning installation of the product.

The VentCool Summit Series fan systems include gravity-closed gravity damper doors that are opened by air

pressure created by fan operation. The dampers serve to block entry of air from the attic into the living space, and

are provided with foam sealing and insulating material in the doors to reduce heat transfer from the attic space.

P/N 780104700 03/20 Rev A

page 5 of 20

VENTILATION REQUIREMENTS

It is very important that the attic be suciently ventilated for the fan system to operate properly. Without

adequate ventilation, hot air exhausted from the home cannot easily escape from the attic, which creates back-

pressure that will substantially reduce the fan’s performance. Operating this fan in an attic with less net free

ventilation area than recommended will decrease its airow and energy eciency.

For whole-house ventilation, we recommend a minimum of 1 square foot of “net free” ventilation area per 500 cfm

at a fan’s highest speed for proper operation. Refer to specication table for required minimum Open Window

Ventilation Area in square feet when operating whole house fan.

Net free ventilation area can be provided by any combination of gable, eyebrow, roof cap, sot, or ridge

vents, or any other method of ventilating the attic space. The openings of most vents are partially obstructed by

grilles, louvers, and/or screens. A vent’s “net free”ventilation area is the surface area of its opening minus the surface

area of any grilles, louvers, or screening covering it. Dierent types of vents have dierent ratios of net free area to

total area.

While most properly constructed homes have adequately ventilated attics, not all do. Because sucient ventilation

is a very strong factor in this fan’s performance, it is important that the home’s existing ventilation be veried before

it is installed.

Manufacturers typically publish their vents’ net free ventilation areas and/or ratios in their products’

specication documents. If this information is unavailable, a ratio of 50% net free area to total area is usually a good

rule of thumb. A 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.

Since most attics have multiple vents, often of dierent types, it is necessary to count each vent, noting its type

and size. Apply the appropriate ratio to the dimensions of each vent to nd its net free area, and sum these

values to nd the attic’s total ventilation. An example of how these calculations are made is given in the

table below:

Vent Type Dimensions Total Area

Net Free Area Ratio

(“NFA”)

Net Free Ventilation Area

(=Total Area x NFA)

Louver 24” x 24” 24” x 24” / 144 = 4 ft.250% 4 ft.2x .50 = 2 ft.2

Ridge 10 feet n/a 13% 10 feet x .13 = 1.33 ft.2

Round Sot 10” diameter 3.14 x 5” x 5” / 144 = .55 ft.250% .55 ft.2 x .50 = 0.28 ft.2

Total Net Free Ventilation Area: 3.61 ft.2

Please consult a roong professional if the attic’s net free ventilation area remains uncertain. Additional

ventilation may be required for proper operation of the fan system.

Refer to specication table for required minimum Open Window Ventilation Area in square feet when operating

whole house fan. Without adequate Open Window Ventilation Area, the quantity of cooler air pulled into the home

to be exhausted to attic may substantially reduce the fan’s overall performance.

P/N 780104700 03/20 Rev A

page 6 of 20

• Locate this fan in a central location, away from windows that will be opened during

its operation. Installing this fan centrally promotes an even replacement of air through-

out the home, and the longer the path of air travels from an open window to the fan,

the greater the cooling eect.

• The damper provided with this fan can only be installed in a horizontal orientation,

thereby requiring the unit to be installed in the ceiling.

• Locate this fan at the highest point possible. This exploits natural convection and helps

the fan exhaust the hottest indoor air from the home.

• Typically, the ideal location for this fan in a two-story home is in the open area at the

top of the stairs.

• Avoid locating this fan in a narrow space or over hard ooring as sound reecting o

of hard surfaces can amplify its perceived noise.

• Even though the Tahoe series fan systems are engineered to be extremely quiet, we

specically recommend against installing it in a bedroom as humans’ perception of

noise is far greater when the surrounding environment is quiet (such as within a bed-

room at night).

By running this fan through the night, homeowners can extract the maximum possible amount of heat from their

home’s structure and contents. This essentially “pre-cools” the home ahead of the rise in temperature the next

day, which can reduce or even eliminate the need for air conditioning. This VentCool Whole House Fan has

been designed specically for quiet and ecient operation. As such, we strongly recommend homeowners run

this fan through the night to reduce their energy expense.

With these principles of operation in mind, adhere to the following guidelines when choosing a location for

this fan:

WHERE TO LOCATE THIS FAN

The best location for this fan is determined by an under-

standing of its 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 up their heat

slowly and, in doing so, continue to heat the home’s inte-

rior even though the outdoor temperature may, in fact, be

very comfortable in the evening and at night. Thus, home-

owners are forced to either endure the hot conditions in-

side of their homes or turn on their air conditioners and

bear the expense thereof.

When operated properly, this whole house fan can resolve

this dilemma by forcing the hot air inside a home out and

drawing cool air from outside in. The illustration to the right

depicts how this fan exhausts hot air into the attic and

draws cool air into the house from outdoors through open

windows and/or doors.

P/N 780104700 03/20 Rev A

page 7 of 20

The ideal orientation of unit’s gravity damper is in a level position. If necessary, however, the damper can be installed

at a slight angle. Before beginning the installation, make sure that the fan assembly is undamaged, and that the

fan blade rotates freely. Brace or clamp the fan assembly to a secure object, and temporarily plug in the fan’s power

cord into a grounded power outlet to verify smooth and correct operation.

Be aware that the fan is quite powerful and will draw in loose objects or debris, and will blow dirt,

debris and other objects with force!

Use eye protection when operating the fan to avoid injury from blowing sand or debris! Keep hands

and other objects away from the rotating fan blade!

TIP: Before beginning the installation, verify that the damper assembly is undamaged, and that the damper doors

operate freely, opening and closing fully without binding or restriction.

INSTALLATION: GRAVITY DAMPER

GRAVITY DAMPER ORIENTATION NOTE

1. From consideration of the principles of whole-house fan

operation, determine the best general area for installation

of the gravity damper assembly. The damper assembly is to

be mounted in the attic with its bottom edge opening into

and ush with the ceiling of the living space. The eggcrate

inlet grille is to be mounted on the ceiling of the living

space, covering and engaging with the opening of the

damper assembly.

2. Using the cardboard from the fan system’s packaging, or

other suitable material, make a rectangular template for the

rough opening of the damper assembly to these dimensions

(making sure all sides are at right angles to each other):

Summit S6.5 model: 14-1/4” wide, 36-1/4” long

FIGURE 1 - TEMPLATE

3. Take the template into the attic, above the general area for installation, and determine the exact desired

location for the rough opening for installation of the damper assembly. There must be at least 36” of

vertical clearance above the damper assembly location, and the damper assembly must be fastened to

secure framing (ceiling joist, roof truss, or additional framing) along at least one long side or both short

sides of the damper assembly! Add additional framing as required to support the weight of the damper

assembly and duct.

a. For existing construction, the anges surrounding the opening of the damper assembly may be

removed for clearance (as with 16” on-center framing) and/or to allow the side or sides of the

damper assembly to make direct contact with the framing used to support the damper assembly.

Leave anges in place if they will not be fastened to framing, if possible. Additional framing

may be added after the damper assembly is placed into the rough opening, so the anges can

remain in place if space allows.

b. For new construction, before the ceiling drywall is hung, frame in a rough opening for

installation of the damper assembly from below. Leave the assembly anges in place and

simply attach the damper assembly to the bottom of the framing using appropriate fasteners

installed through the anges. Skip all following steps regarding cutting the rough opening

into the ceiling and proceed with installation of the duct and fan assembly.

P/N 780104700 03/20 Rev A

page 8 of 20

7. Using a drywall saw or other appropriate device, carefully cut out the rough opening into the ceiling. Use

care to avoid damaging the surrounding areas of the ceiling that will not be covered by the edges of the

eggcrate inlet grille.

8. Place the fan assemblies, exible ducts, and damper assembly in the attic space. If necessary, the fan and

damper assemblies may be passed through the rough opening into the attic. It may be necessary to

detach the exible duct from the fan assembly to allow passage of the fan and duct into the attic space. It is

recommended to pre-attach the ex ductwork to fan assembly prior to placing unit in attic.

9. Move the damper assembly into place in the rough opening, with the bottom edge of the assembly

protruding into the opening. If more than two anges were removed from the damper assembly for

installation clearance, make sure that the bottom edge of the damper assembly does not protrude below

the surface of the ceiling.

10. Attach the damper assembly to the framing by installing drywall screws (as supplied) or wood screws

through the inside wall(s) of the damper assembly into the framing. If addition framing is to be added, place

the framing over the damper assembly anges and fasten in place.

If using fasteners long enough to penetrate through the framing, use extreme caution to avoid drilling into

hidden wiring, plumbing, or other building elements of concern!

11. From below, install drywall screws through the ceiling and through the anges of the damper assembly, and

into any addition framing positioned above the anges. Use care to avoid installing screws outside of the area

that will be covered by the eggcrate inlet grille.

12. Hold the eggcrate grille in position on the ceiling, and install the included white screws through the holes in the

ange of the grille, through the ceiling, and into the damper assembly anges and/or framing above.

Make sure that the eggcrate grille mounting screws penetrate into either the damper box anges or framing

above, and that the grille is securely fastened in place!

FIGURE 2 - DAMPER BOX INSTALLATION

4. Make sure that the exact location chosen

for the rough opening will allow installation

of the eggcrate inlet grille, and will not

interfere with any lighting xtures, smoke

alarms, or other objects installed in the

ceiling.

5. Remove any insulation from the area of

the exact chosen location, and make sure that

no wiring, plumbing, bracing or other building

elements will interfere with the damper as-

sembly installation.

6. With the template laying on top of the

ceiling in the exact chosen location, mark the

outline of the template onto the ceiling. If the

ceiling hole is to be cut from below, drill or

punch a small hole at each corner of the tem-

plate, and mark the outline of the template

from below the ceiling.

P/N 780104700 03/20 Rev A

page 9 of 20

INSTALLATION: FAN & DUCT

NOTES:

• The fan assembly must be soundly supported by attachment to structurally sound framing. Provide

additional framing with minimum 2-by-4 lumber as needed for fan support.

• The fan assembly should be positioned with at least 24” of free space in front of the fan, for air to be freely

blown into the attic by the fan.

• Position the fan with a slight upward angle and in a direction minimizing disturbance to attic insulation.

• The acoustical duct should be installed with a gentle bend of close to 90 degrees, from vertical to nearly

horizontal, to minimize fan sound inside the living space. It must not be kinked or bent sharply, especially

where leading into the fan.

• The acoustical duct must be installed with the air ow direction arrow (as marked on the duct) pointing

downstream (towards the fan).

• Refer to Figure 3 for Flex Duct to Fan Assembly Connection. This model includes a transition cone to be

installed on the inlet side of the fan assembly BEFORE mating the ex duct to the fan assembly. The transition

cones are shipped loose with the ex duct and in the same box as the ex duct and fan assembly.

1. Lay the fan assembly on top of the ceiling joists, within a few feet of the damper assembly and underneath the

area where the fan will be suspended in place.

2. Rotate and brace the fan assembly so that the electrical handy-box on the fan is in the 12-o’clock position (on the

top of the fan). This is important to avoid twisting the duct, while having the fan’s electrical handy-box within

the 10- to 2-o’clock position once installed.

3. Fan Inlet Collar (Transition Cone) Installation for Model S6.5 (Refer to Figure 3): Connect the transition cone to

inlet side of fan assembly using 4 self-driving/self-tapping sheet metal screws provided in the hardware kit.

Seal joint with approved duct tape, metal tape, mastic or other approved means.

4. Adjust the exible duct collar on the upstream end (fan side) of the duct to be as loose as possible which may

require the removal of the slide rivet on the ex duct collar section for maximum opening (looseness).

Install four (4) self-driving/self-tapping screws provided to secure the ex duct to fan assembly or transition

cone connected to the fan assembly. (Refer to Figure 3) Squeeze and position the other end of ex duct collar

section over the oval-shaped collar on the damper box and secure in place using three (3) self-drilling/

self-tapping screws provided. Note: that twisting the duct during assembly will cause the fan to try to roll out

of position. Seal joint with approved duct tape, metal tape, mastic or other approved means.

5. Lift and support the fan assembly into position beneath the rafters, truss structure or other framing to be used

to support the fan, with the electrical handy box at approximately the twelve-o-clock position. Attach both

ends of the metal fan support strap to the framing using a minimum of two screws for each end of the

strap. 1”drywall screws and large washers are supplied; other fasteners of appropriate strength may also be used.

P/N 780104700 03/20 Rev A

FIGURE 3: FLEX DUCT TO TRANSITION CONE TO

FAN ASSEMBLY CONNECTION (MODELS: S6.5)

page 10 of 20

STANDARD WHF WALL CONTROLL INSTALLATION USING WTT PRODUCT

1. Install a dedicated 115VAC, 15 amp power outlet with in 15 foot of fan assembly

location. Verify power voltage and terminal orientation.

2. In living area (upstairs living space), install a PLASTIC RETROFIT SINGLE GANG BOX

roughly 5 feet o the oor for the whole house fan wall controller to be mounted in

(Refer to FIGURE 4). DO NOT INSTALL METAL GANG BOX. Select a location that will

best sense the temperature for the living space. Do not install box in a location where

the temperature will be inuenced such as in direct sunlight, on an exterior wall, etc...

Note: The wall controller kit comes standard with 50 feet of cable to connect between

plastic box and the fan assembly. The maximum allowable cable length is 100

feet using a connector and two 50 foot cables. Contact Field Cotrols to purchase

additional 50 foot cable and connector, if necessary.

INSTALLATION: WIRING & CONTROLS

The VentCool ECM Summit Series Whole-House Fan Systems require a 115 volt electrical power supply of

minimum 15A ampacity and maximum 15 Amp circuit overcurrent protection.

All electrical components, whether included with the VentCool system or supplied by others, must be rated

for the fan system’s electrical load requirements; please refer to the VentCool Summit Series specications

table for the electrical load requirements of the specic model to be installed.

All wiring and connections must be made according to this manual and all applicable electrical wiring

codes and standards. All applicable electrical codes must be followed to the satisfaction of the local

authority having jurisdiction.

A dedicated circuit is strongly recommended for this fan system.

P/N 780104700 03/20 Rev A

7. Replace the insulation around and over the damper assembly. Additional insulation may be added to further

reduce heat transfer and fan noised from the attic to the living space.

The Ventcool Summit (Generation 4) Whole House Fan is supplied pre-wired with a fan control module (FC3JF)

installed on fan assembly. Refer to Diagram 1 for the Interconnection Cable Control Diagram. Refer to Dia-

gram 2 for the fan assembly electrical box wiring diagram.

FIGURE 4 -

PLASTIC RETROFIT

GANG BOX

FIGURE 5 - PLUG CABLE TO FAN CONTROL MODULE

3. Route the 50 foot plug & play cable between the plastic box and one of the fan assemblies. Refer to DIAGRAM

1 for cable connections. Plug the splitter connector into one fan assembly at the fan control module (FC3JF

refer to Figure 5). Connect the two fan assemblies together using the one of the 50 foot plug & play cables.

Plug second 50 foot plug & play cable going to wall control (WTT) into splitter connector on fan assembly.

Extend the cable out of the plastic retrot box (refer to FIGURE 6). This control assembly uses two (2) 50 foot

cables – one between fan assemblies, one between fan assembly with splitter and wall control plastic box.

FIGURE 6 - EXTEND CABLE

6. Using the black woven poly strapping, support the acoustic ex duct by attaching the strapping to

attic framing as shown. Fold each end over a large washer 2-3 times and fasten to the framing by driving the

supplied 1” drywall screws or other appropriate fasteners through the washer and into the framing.

The strapping may be cut to length with ordinary scissors if desired.

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