GAF MasterFlow GreenMachine ERVHYBRID Instructions Manual

Note: This Dual-Powered vent operates when
exposed to sunlight and includes electrical
back-up. It does NOT include battery back-up.
SAFETY CONSIDERATIONS AND WARNINGS
1. Use appropriate safety glasses, gloves, hard hats,
restraints, and other equipment to avoid injury.
2. Wear durable work gloves while handling the
unit during installation. This product has sharp
edges that can cause injury.
3. Observe all applicable building codes in your area.
4. Do not damage electrical wiring or other hidden
utilities when cutting or drilling.
5. Make sure the fan blade is on tight and ensure
the set screw is securely tightened.
6. Use this unit only in the manner intended
by GAF. If you have any questions, please
contact Master Flow Technical Services at
®
1-800-211-9612.
7. Ducted fans must always be vented to the
outdoors.
8. WARNING: DUAL POWER SOURCE! TO REDUCE
THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY
TO PERSONS, OBSERVE THE FOLLOWING:
a) Installation work and electrical wiring should
be performed by qualified persons in
accordance with applicable building codes
and standards, including codes for fire ratings.
b) Before servicing or cleaning unit:
• Switch power off at the service panel and
take all steps necessary to prevent power
from being switched on accidentally. If the
service panel cannot be locked, securely
fasten a prominent warning device, such
as a tag, to the service panel.
• Disconnect power leads from solar panel
to prevent accidental operation.
9. This fan should be connected to a circuit with
minimum 14-gauge wiring that has at least 3
amperes of available capacity. If you cannot
confirm that there is sufficient electrical capacity
on an existing circuit, install a separate dedicated
circuit. Do NOT use an extension cord to operate.
All electrical wiring should comply with National
Electrical Code (US only) and all other local
codes. Contact a qualified electrician if you are
not comfortable or familiar with electrical codes
and/or installations.
V971390
10. FOR HOMES WITH A GAS OR OIL FURNACE
LOCATED IN THE ATTIC: The ventilator MUST
be wired with a switch or other interlocking
device to prevent the furnace and ventilator from
operating at the same time during the heating
cycle. The switch or other interlocking device
MUST disconnect the vent unit from both the
electrical circuit power and the solar panel. We
recommend that the switch (not provided) be
installed by a qualified person in accordance
with all applicable codes and standards.
CAUTION: FOR GENERAL VENTILATING USE ONLY.
THIS FAN HAS AN UNGUARDED IMPELLER.
DO NOT USE IN LOCATIONS READILY ACCESSIBLE
TO PEOPLE OR ANIMALS. DO NOT USE TO
EXHAUST HAZARDOUS OR EXPLOSIVE
MATERIALS OR VAPORS.
Important: Your solar panel configuration may
differ from the one shown in the illustrations. The
performance of all configurations is the same.
Tools Required
• Drill
• Extension cord
• 1/ " drill bit
8
• / " socket or adjustable wrench
7
16
• Utility knife
• Power saber or jigsaw and handsaw
• Safety eyewear
• Hard hat and other safety equipment
• Fall-restraint equipment
• Galvanized roofing nails
• Caulking gun
• ASTM D4586 Type 1 or 2 asphalt roofing
cement or ASTM C920 urethane sealant
• Work gloves
• Ladder
• Claw hammer
• Flat blade screwdriver
• Phillips-head screwdriver
• Pencil or marker
• Tape measure
• 1/2" trade-size cable clamp connector
• Type NM electrical cable
• Wire nuts
NOTE: Always ensure there is proper attic intake
ventilation at or near the soffit area of the roof. This
is required for a balanced ventilation system and to
help avoid premature ventilator motor failure. Use
the chart located on the outside of the package or
visit gaf.com/ventcalculator to ensure the minimum
recommended intake ventilation is installed on
the home. Always consult local building codes for
ventilation requirements.
INSTRUCTIONS
Model: ERVHYBRID
See figures on next page
1. Determine Location. Place vent as close to the
peak of the roof as possible but below the ridge
line. For optimal power, ensure the unit faces
south. Make sure the location is not shaded by
trees or other nearby structures during the day
(Figure 1a). Measure from the peak of the roof
to the midpoint of the solar power vent (Figure
1b). Transfer this measurement into the attic
and mark the location inside the attic, centered
between two rafters, and drill a hole (Figure 1c).
Put an object, such as a pencil or nail, through
the hole to mark it on the outside. Note: Single
units should be centered. If multiple units are
used, space evenly over the length of the ridge.
CAUTION: Be sure to mount the vent unit on the
outside of the roof deck (motor down) above
unoccupied attic space.
2. Mark Opening. Cut out the 15" (382 mm)
diameter template printed on the outside of
the package. Place center of template over
holemarked in roof in step one. Use correctly
positioned template to mark a circle. For rafters
24" (610 mm) on center, mark the cut-out as
shown in (Figure 2a). For rafters 16" (406
mm) on center, proceed with marking as
shown (Figure 2b).
3. Cut Out Opening and Test Position. Roll back
and separate all shingles (if present) 7" (178
mm) from the top and sides of the cut-out area.
Be sure that all roofing nails have been removed.
Using a saber saw, jig saw, or hand saw, cut and
remove all roof shingles and deck inside the 15"
(382 mm) diameter circle (Figure 3a). Do NOT
cut any rafters. Test the final position by inserting
the top half of the unit flashing under the rolled
shingles. Trim shingles as necessary (Figure 3b).
Note: For additional weather protection, install an
18" x 18" (457 mm x 457 mm) piece of GAF Leak
Barrier around the opening. Remove release film
and center the Leak Barrier over hole. Press into
place and cut out the Leak Barrier covering
the opening.
We protect what matters mos t
™