Lomanco LomanCool 2000

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OMANCO

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

Power Vent Installation Instructions

INSTALLATION

1. Determine approximately where on your

roof you will place your Power Ventilator.

•At the highest point in your attic or

air space. Best if centered on roof

length, and less conspicuous if

placed on side away from street.

•IMPORTANT: Keep the highest

part of the dome lower than

the ridge line to ensure that the

dome's edge is NOT above ridge

line. (Typically, the center of the

vent should be about 24 inches

down from the ridge.)

•Establish your position with

accuracy (because you will want

to duplicate it inside your attic) by

measuring down from the ridge

and over from the roof edge.

2. Working now from the inside, mark your

planned opening (as you established

position when on roof) and relocate

your position to be centered between

two rafters. Drive a nail into the roof so

that it can be easily found when you

return to the roof. Before you return

to the roof, be sure that you have:

(a) string or compass, (b) drill and drill

bit, (c) keyhole or electric jig (saber)

saw with a sharp coarse blade, (d)

ventilator and base, (e) roong nails

and hammer, and (f) roong cement

and applicator.

3. Using the nail driven from the inside

as center, scribe a 14” diameter circle

using string or compass. Care should

be taken not to make the hole too large.

4. Drill a starting hole for sawing inside

the scribed circle.

5. Starting in the drilled hole, cut circular

opening, following the scribed line. Use

either keyhole or an electric jig (saber)

saw with a sharp coarse blade to cut

shingles and roof boards at one time.

If you do not have a coarse blade, cut

away shingles inside the circle with

utility knife before cutting roof boards.

6. Carefullyremoveroongnailsfromtop

rowofshinglessothattheashingof

the ventilator will slide under top row.

Slide ventilator carefully into place with

arrow pointing up, letting thermostat

hang down into opening. Fasten the

aluminum base to roof boards with

roongnails.Keepheadsofnailsunder

shingles wherever possible.

7. Finish the exterior mounting by sealing

all seams and nails with roong

cement. Use cement also to fasten

down loose edges of shingles. Return

to the attic. You now have to mount

the thermostat and connect the wiring.

20500_0512

WARNING —TO REDUCE THE RISK OF

FIRE, ELECTRIC SHOCK, OR INJURY TO

PERSONS, OBSERVE THE FOLLOWING:

A. Use this unit only in the manner intended by the

manufacturer. If you have any questions, contact the

manufacturer.

B. Before servicing or cleaning unit, switch power off at

service panel and lock service panel to prevent power

from being switched on accidentally. When the service

panel cannot be locked, securely fasten a prominent

warning device, such as a tag to the service panel.

C. Installation work and electrical wiring must be done by

qualied person(s) in accordance with all applicable

codesandstandards,includingre-ratedconstruction.

D. Sufcient air is needed for proper combustion and

exhaustingofgasesthroughtheue(chimney)offuel-

burning equipment to prevent back drafting. Follow

the heating equipment manufacturer’s guide lines

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.

E. When cutting or drilling into wall or ceiling, do not

damage electrical wiring or other hidden utilities.

F. Ducted fans must always be vented to the outdoors.

G. If this unit is to be installed over a tub or shower, it must

be marked as appropriate for the application.

H. NEVER-placeaswitchwhereitcanbereachedfrom

a tub or a shower.

CAUTION - For general ventilating use only. Do not

use to exhaust hazardous or explosive materials and

vapors.

CAUTION- This unit has an unguarded fan blade.

Do not use in locations readily accessible to people

or animals. This fan is intended for use facing an

unoccupied space only.

Be sure your fan is properly installed. Your fan is

designed to operate on 120 VAC 60 Hz.

Sharp edges are exposed during installation. Use

gloves and other safety equipment to avoid accidents.

WARNING -Toreducetheriskofreorelectricshock,

do not use this fan with any solid state speed control.

IMPORTANT

With the power vent installed, at least 780 square

inches of inlet area must be provided. This is achieved

by installing 12, 8” x 16” intake vents, measuring 65

square inches each.

OPERATION

Your ventilator will operate automatically as needed.

The adjustable thermostat has been set at the factory

to come on at 100°F., off at 85°F. The motor has been

permanently lubricated and does not require additional

lubrication.

Need help?

Do you have a question about the Lomanco LomanCool 2000 and is the answer not in the manual?

Summary

General Safety and Warnings

Use unit as intended

Use unit only as intended by manufacturer. Contact manufacturer for questions.

Power off and lock panel

Switch power off at service panel and lock it to prevent accidental power-on.

Qualified installation

Installation and electrical wiring must be done by qualified persons per codes.

Air for combustion

Ensure sufficient air for combustion and gas exhausting to prevent back drafting.

Avoid utilities

Do not damage electrical wiring or utilities when cutting into wall or ceiling.

Outdoor venting

Ducted fans must always be vented to the outdoors.

Tub;shower installation

If installed over a tub or shower, it must be marked as appropriate.

Switch placement

Never place a switch where it can be reached from a tub or shower.

Caution: Hazardous materials

For general ventilating use only. Do not exhaust hazardous or explosive materials.

Caution: Unguarded fan

Unit has an unguarded fan blade; keep away from people or animals.

Warning: Speed control

Do not use this fan with any solid state speed control to reduce fire risk.

Important: Inlet area requirement

At least 780 sq. in. of inlet area must be provided with the power vent installed.

Operation overview

Ventilator operates automatically via thermostat. Motor is permanently lubricated.

Installation Steps

Determine roof placement

Determine placement on roof, ideally centered and below ridge line for best appearance.

Mark inside opening

Working from inside, mark the planned opening, centering between rafters.

Scribe opening circle

Using a nail as center, scribe a 14" diameter circle for the opening.

Drill starting hole

Drill a starting hole inside the scribed circle for sawing.

Cut circular opening

Cut the circular opening following the scribed line using a saw.

Slide ventilator and fasten

Remove shingles, slide ventilator into opening, and fasten aluminum base with roofing nails.

Seal exterior seams

Seal all seams and nails with roofing cement to prevent leaks.

Position thermostat and wire

Position thermostat base high, ensure flexible cable doesn't touch roof/rafters. Wire as shown.

Connect power and test

Turn off power, connect wires to ventilator, then turn power on. Test unit with switch.

Warranty and Approvals

Limited Warranty

Five-year warranty against defects. Online registration required within ten days.

County and State Approvals

Miami-Dade County Approved and Texas Department of Insurance Windstorm Approved.

Safety Certifications

Includes UL and CSA certifications for safety and performance.

Attic Ventilation Best Practices

Guidelines for installing exhaust vents, intake vents, and balanced systems.

The Lomancool® 2000 Power Vent is a roof-mounted attic ventilator designed to automatically regulate attic temperatures. It operates on 120 VAC 60 Hz and is equipped with an adjustable thermostat, factory-set to turn on at 100°F and off at 85°F. The motor is permanently lubricated, eliminating the need for additional lubrication.

Function Description:

The primary function of the Lomancool® 2000 is to exhaust hot air from the attic, thereby reducing attic temperatures and potentially lowering cooling costs. It operates automatically based on the thermostat settings. The device requires at least 780 square inches of inlet area, which can be achieved by installing 12, 8" x 16" intake vents, each providing 65 square inches. A test switch is provided to verify proper operation; simply "PUSH TO TEST" to ensure the ventilator is working correctly.

Important Technical Specifications:

Power Requirement: 120 VAC 60 Hz.
Thermostat Settings: Factory-set to turn on at 100°F and off at 85°F.
Inlet Area Requirement: Minimum of 780 square inches (e.g., 12, 8" x 16" intake vents).
Wiring: Requires 14 gauge or larger wire size (two wires plus ground) connected to a 15-amp circuit breaker.
Mounting Screw Torque (if dome removed): Maximum 100 inch-pounds.
Approvals: UL Listed, CSA-approved 83070, Miami-Dade County Approved, Texas Department of Insurance "Windstorm" Approved (Report # RV-22).

Usage Features:

Automatic Operation: The ventilator operates automatically based on the thermostat, requiring no manual intervention once installed and wired.
Adjustable Thermostat: Allows for customization of temperature thresholds for activation and deactivation.
Test Switch: A "PUSH TO TEST" button is included for easy verification of proper fan operation.
Humidity Control (Optional): A humidistat can be installed to control humidity in the attic, though it is not included with the standard unit.
Installation Guidelines:
- Should be placed at the highest point of the attic or air space, ideally centered on the roof length and less conspicuous.
- The highest part of the dome must be lower than the ridge line, with the center of the vent typically about 24 inches down from the ridge.
- A 14-inch diameter circular opening is required for installation.
- The ventilator flashing slides under the top row of shingles and is secured with roofing nails and cement.
- The thermostat base should be positioned high in the warmest part of the air space, above the ventilator opening, ensuring flexible cable does not touch the roof or rafters to prevent vibration noise.
Wiring Instructions:
- All connections must be made inside the thermostat box.
- White (neutral) wire from power supply connects to white wire on motor.
- Black (hot) wire from power supply connects to black wire on thermostat and black wire on switch.
- Other black wires on thermostat and switch connect to black wire on motor (factory-connected, but should be checked).
- Ground wire from supply connects to ground wire on thermostat box.
- Safety Precaution: Power must be turned off at the circuit breaker before connecting wires.

Maintenance Features:

Permanently Lubricated Motor: The motor does not require additional lubrication, reducing maintenance needs.
Warning for Dome Removal: If the dome is removed for any reason, the mounting screw should be torqued to a maximum of 100 inch-pounds upon reinstallation. Over-tightening should be avoided.

Safety Warnings and Cautions:

General Use: Use only as intended by the manufacturer for general ventilating purposes. Do not use to exhaust hazardous or explosive materials and vapors.
Electrical Safety:
- Switch power off at the service panel and lock it out before servicing or cleaning.
- Installation and electrical wiring must be done by qualified personnel according to all applicable codes and standards, including fire-rated construction.
- Do not damage electrical wiring or hidden utilities when cutting or drilling.
- Do not use with any solid-state speed control.
Ventilation: Sufficient air is needed for proper combustion and exhausting of gases from fuel-burning equipment to prevent back drafting.
Fan Blade: The unit has an unguarded fan blade. Do not use in locations readily accessible to people or animals. This fan is intended for use facing an unoccupied space only.
Sharp Edges: Use gloves and other safety equipment during installation to avoid accidents.
Switch Placement: NEVER place a switch where it can be reached from a tub or a shower.
Ducting: Ducted fans must always be vented to the outdoors.
Tub/Shower Installation: If installed over a tub or shower, it must be marked as appropriate for the application.

Attic Ventilation Do's and Don'ts:

DO install all Exhaust Ventilation at the SAME HEIGHT within a common attic area.
DON'T install exhaust vents at different heights.
DON'T install Ridge Vents down the hip.
DO install ONLY ONE TYPE of Exhaust Ventilation within a common attic area (e.g., Power Vents with Roof Vents or Gable Vents with Ridge Vents). Mixing types can cause one vent to act as intake.
DON'T mix different types of exhaust vents.
DO install a BALANCED SYSTEM of Intake and Exhaust Ventilation (50% Intake and 50% Exhaust) to prevent issues like snow or rain infiltration.