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QPR5 Study Guide > HVAC Rough > Flashcards

HVAC Rough Flashcards

1
Q

The air handler and/or gas furnace in the attic is to be hung ________, _____________, and secured from all four corners of the unit to the top chord of the trusses.

A

plumb, level,

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2
Q

The air handler is to be completely sealed to the ___________ to eliminate any air intake from the attic, walls, or garage.

A

plenum/platform

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3
Q

The plenum is to be completely sealed to the air handler using a _________ type product.

A

mastic

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4
Q

The air handler panel door is to be installed using __________ clips or ___________. (No tape).

A
  1. plastic
  2. screws
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5
Q

Line sets at the air handler are to be completely sealed to the unit using a ________ __________.(No cork tape).

A

silver tape

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6
Q

All unused openings on the air handler are to be plugged with a _________ type or ____________ plug. (No tape).

A
  1. plastic
  2. approved
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7
Q

Condensate lines to slope min. _______” per foot away from pan (no reverse fall, humps, or bellies).

A

1/8”

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8
Q

Primary condensate line installed on the exterior of the home approximately ______”- _____” AFF, extend _______”-_________” past the stucco with a 90° elbow at the end.

A
  1. 6” - 8”
  2. 2” - 3”
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9
Q

Secondary condensate line to terminate above a clear __________ (no obscure or glass block), extend past the pop out with a 90° elbow at the end.

A

window

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10
Q

Run all ______________ lines separately.

A

condensation

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11
Q

Condensate lines are to be run ____________ in the middle of the stud.

A

vertically

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12
Q

No pipe __________ is to be left on any exposed concrete.

A

glue

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13
Q

The condensate pan should slope _____” per foot.

A

1/4”

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14
Q

What is the tolerance for construction material, or debris in the pan?

A

No tolerance

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15
Q

All metal to metal duct connections are to be sealed with an approved ___________ type product to prevent air leaks.

A

mastic

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16
Q

Flex duct is to be kept a min. of ______” from the roof sheeting.

A

2”

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17
Q

Flex duct is to be secured every _____’.

A

4’

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18
Q

Flex duct must retain ______% of the diameter of the duct.

A

80%

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19
Q

Furnace flue pipes are to extend _____”-_______” above the roof tile to the bottom of the flue cap

A

12” - 24”

20
Q

Flue pipes above the roof line are to be plumb within a _____” per foot.

A

1/4”

21
Q

All furnace flue pipes and hot water heater B-vents are to have _________ collars.

A

storm

22
Q

All hood, dryer, and exhaust vents that terminate on an exterior wall are to be plumb & level. What is the tolerance?

A

No tolerance

23
Q

A sheet metal (insulation) barrier is to be installed around all hot water heater _________ pipes. The sheet metal barrier is to be approx. __________” in height and is to maintain a min. _______” clearance from any combustible material.

A
  1. flue
  2. 24”
  3. 1”
24
Q

A ________” tall, sheet metal dryer box is to be installed directly on the bottom plate at all ________ locations.

A
  1. 24”
  2. dryer
25
Q

Keep all roof penetrations a min. of ________” from any hip, ridge, valley, other penetration, and a min. of _________” from any horizontal edge of roof sheeting.

A
  1. 24”
  2. 12”
26
Q

All penetrations through shear walls or roof sheeting must be ______-cut to avoid damage to the OSB. Do Not Blow Holes Through Sheeting.

A

Saw

27
Q

Both the liquid line (small pipe), and the suction line (large pipe) are to be wrapped with __________ insulation inside the wall cavity from the bottom plate to the top plate.

A

Armarflex

28
Q

The entire suction line (large pipe) from the condenser unit to the air handler is to be wrapped with ___________ insulation.

A

Armarflex

29
Q

The line-sets are to be supported or secured approximately every _______’ in the attic.

A

10’

30
Q

The wall jack where the line-sets stub out of the exterior wall should be secured to the bottom plate and wall studs at a min. of ______ of its 4 sides.

A

2

31
Q

The line-sets are to be sealed to the exterior wall jack with an approved ___________ or ______ __________ _____________.

A
  1. caulking
  2. UV resistant tape
32
Q

Line sets are to be Quick -______________.

A

flashed

33
Q

All HVAC penetrations in the rigid air barrier material to the exterior and/or unconditioned space are to be __________ cut, and be no more than _____” larger than the penetrating object (to allow for proper air sealing). Penetrations are to be completely air sealed with foam, caulk, or mastic (no fibrous insulation).

A
  1. Cleanly
  2. 1”
34
Q

All HVAC components are to be sealed at all joints & corners with a Shea Homes approved __________ (including all pre-fabricated joints).

A

mastic

35
Q

All metal ductwork is to be mechanically fastened with _________ (tape of any kind is not a mechanical fastener).

A

screws

36
Q

Flexible ducts are to be attached at the inner liner by first sealing the liner to the collar with mastic then using nylon/plastic __________ straps tightened with an approved manufacturer’s tool.

A

Panduit®

37
Q

All ductwork outside the conditioned air space (including exterior wall cavities) is to be completely insulated to a minimum ________. Insulation is to be strapped to the collars, and at duct to duct connections with tape or ___________ straps.

A
  1. R-6
  2. Panduit®
38
Q

Flexible duct is ________ to be in direct contact with either the roof sheeting or the sheetrock(ceiling).

A

not

39
Q

Flexible duct (including ventilation duct) is to be supported a minimum of every _____’ and have no bends greater than _____°.

A
  1. 4’
  2. 90 degrees
40
Q

Flexible ducts in _________________ space are not to be installed in cavities smaller than the outer duct diameter.

A

unconditioned

41
Q

Flexible duct in ____________ space are not to be installed in cavities smaller than the inner duct diameter.

A

conditioned

42
Q

A “Shea Family _________ ________ ________” fresh air ventilation system is to be installed, filtered ,and is to include a means of occupant control.

A

Fresh Air Intake

43
Q

The fresh air intake duct is to be insulated to a minimum R-6 and shall terminate to the ____________ of the home, and include a manual damper, or other means of occupant control.

A

exterior

44
Q

The fresh air intake duct is to be installed a minimum a _____’ from any exhaust vent, or plumbing stack.

A

10’

45
Q

The fresh air intake vent shall have a rodent/insect screen with ≤ ___” mesh.

A

1/2”

QPR5 Study Guide (4 decks)

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