Replace HVAC Units Plenum Box Bldg 10324.pdf

REPLACE HVAC SYSTEMS

BUILDING NO. 10324

GEORGIA GARRISON TRAINING CENTER

SHEET 1 OF 8

TT

BARRACKS

BUILDING 10324

PS

CA

SD

FA

C

P

O/A

FV

RA

SAD SAD DISCONNECT

CONDENSER ON CONC.

PAD

NG PIPING

INTERIOR TEMPERATURE

SENSOR

CA

FU1 FU2

AHU1 AHU2

CU1 CU2

ABBREVIATIONS:

PS – FIRE ALARM PULL STATION

CA – COMBUSTIBLE AIR DUCT

O/A – OUTSIDE AIR DUCT

RA – RETURN AIR DUCT

SAD – SUPPLY AIR DUCT

SD – SMOKE DETECTOR

AHU – AIR HANDLING UNIT

FU – FURNACE UNIT

FV – FURNACE VENT

CU – CONDENSER UNIT

LIQUID FLEX

REPLACE PLENIUM BOX AND HVAC UNITS,

BUILDING 10324

EXISTING CONDITIONS

SCALE: ¾” = 1'-0"

SHEET 2 OF 8

A

2 3

RETURN AIR DUCT

SUPPLY TRANSITION

DUCT

FURNACEFURNACE

AH-2

AH-1

PLENUM BOX

NG LINE

CONDENSATE DRAIN

DISCONNECT DISCONNECT

1" FLEX

1/2" FLEX

REFRIG PIPING

THERMOSTAT FROM

INTERIOR SENSOR

DRYER

CMU MECHANICAL ROOM

WALL

1/2" FLEX

x

O

.C x

O

.C

RAFTERS @ 16" O.C.

FU

R

N A

C E

V

EN

T

TOP PLATE OF EXTERIOR

BARRACKS WALL

3" THRU WALL

SLEEVE

LINE SETS

O/A DUCT

SECTION

SCALE: ¾” = 1'-0"

A

2 3EXISTING CONDITIONS SECTION

SHEET 3 OF 8

BARRACKS BUILDING 10324

PS

FA

C

P

NG PIPING

INTERIOR TEMPERATURE

SENSOR

REPLACE PLENIUM BOX AND HVAC UNITS, BUILDING 10324

DEMOLITION

SCALE: ¾” = 1'-0"

SHEET 4 OF 8

1 1

NOTES:

NOTE 1 - REMOVE AND REPLACE OUTSIDE CONDENSER UNITS, FURNACES, AIR HANDLERS, LINE SETS, INSULATION AND RELATED WIRING (FROM DISCONNECTS TO UNITS). TYPICAL TWO SETS OF

SYSTEMS CONTROLLED BY ONE THERMOSTAT.

NOTE 2 - REMOVE AND REPLACE NATURAL GAS FURNACES AND AIR HANDLERS FROM PLENUM BOX TO

TRANSITION DUCTWORK, TO ACHIEVE REMOVAL OF UNITS. EXISTING NATURAL GAS PIPING

AND CONDENSATE DRAIN PIPING MAY REMAIN AND BE REUSED.

NOTE 5 - REMOVE AND REPLACE SUPPLY AND RETURN AIR DUCTWORK AND INSULATION AS NEEDED TO

ACHIEVE UNIT REPLACEMENT AND FOR ACCESS TO REAR WALL OF MECHANICAL ROOM (FOR

ACCESS TO FRAMING AND INSTALLATION OF NEW DRYWALL AND CONSTRUCTION OF VERTICAL

WALL.

NOTE 6 - RESECURE NATURAL GAS SUPPORTS TO CONCRETE SLAB AND GAS LINE.

NOTE 7 - REUSE EXISTING GALVANIZED FURNACE VENT AND TIE NEW EQUIPMENT TO EXISTING VENT.

NOTE 8 - RELOCATE ALL SURFACE MOUNTED ITEMS TO NEW DRYWALL SURFACE FOLLOWING

INSTALLATION OF DRYWALL TO WOOD WALLS & CEILINGS.

NOTE 9 - REMOVE EXISTING INCANDESCENT LIGHT FIXTURE AND REPLACE WITH NEW LED 4'

WEATHERPROOF FIXTURE. RECONNECT EXISTING WIRING/SWITCHING.

MECH. ROOM

NOTE 3 - REMOVE AND REPLACE THE EXISTING WOOD PLENUM BOX WITH A NEW ALUMINUM INSULATED

PLENUM BOX (HAVING SIMILAR DIMENSIONS – SEE NEW WORK PLAN).

NOTE 4 - REMOVE EXISTING ELECTRICAL DISCONNECTS SERVING UNITS AND REPLACE WITH NEW OF LIKE

MATERIALS/TYPE/CONSTRUCTION. REPLACE CONDUCTORS AND LIQUID FLEX FROM

DISCONNECTS TO OUTSIDE UNITS (ALONG WITH SERVICE TO AIR-HANDLERS) AS WELL AS

THERMOSTAT WIRING (LIQUID FLEX).

BARRACKS BUILDING 10324

PS

FA

C

P

NG PIPING

INTERIOR TEMPERATURE SENSOR

REPLACE PLENIUM BOX AND HVAC UNITS, BUILDING 10324

NEW WORK PLAN

SCALE: ¾” = 1'-0"

SHEET 5 OF 8

MECH. ROOM

GFIGFI

GFIGFI

NOTES:

1. PROVIDE AND INSTALL NEW INSULATED ALUMINUM PLENUM BOX. SEE DETAILS/DRAWINGS.

2. PROVIDE AND INSTALL 5/8" TYPE “X” DRYWALL TO CEILING, UPPER WOOD FRAMED WALL AREAS

AND VERTICAL REAR WALL OF MECHANICAL ROOM. CONSTRUCT AND/OR FRAME NEW VERTICAL

WALL FROM WOOD TOP PLATE TO BOTTOM OF RAFTERS. DRYWALL TO BE UNFINISHED WITH

JOINTS TAPED AND MUDDED. ITEMS INSTALLED ON EXISTING CEILING AND/OR WALL FRAMING

SHALL BE RELOCATED TO THE NEW DRYWALL SURFACE. PENETRATIONS SHALL BE SEALED.

3. PROVIDE AND INSTALL HVAC CONDENSERS, AIR HANDLERS AND NATURAL GAS FURNACES, TO REPLACE EXISTING 5 TON UNITS. INSTALLATION SHALL INCORPORATE NEW LINE SETS, DRYERS, SIGHT GLASSES, INSULATION, CONDENSATE DRAINS, FLEXIBLE CONNECTOR, ETC., FOR A

COMPLETE INSTALLATION.

4. REMOVE DUCTWORK AS NECESSARY TO ACCESS REAR WALL AREA OF MECHANICAL ROOM TO

ACCOMPLISH FRAMING AND DRYWALL. REUSE EXISTING DUCTWORK AND PROVIDE NEW 3"

DUCTWRAP INSULATION OVER EXISTING DUCTWORK, AFTER RE-INSTALLATION. PROVIDE NEW

FLEXIBLE CONNECTION AT TOP OF UNITS AND SUPPLY DUCTWORK.

5. PROVIDE NEW 4' WEATHERPROOF LIGHT FIXTURE TO REPLACE EXISTING INCANDESCENT FIXTURE.

EXTEND ELECTRICAL AND SWITCHING FROM EXISTING SWITCH.

6. PROVIDE AND INSTALL NEW GFIC OUTLETS IN LOCATION SHOWN ON DRAWING.

7. PROVIDE AND INSTALL NEW ELECTRICAL DISCONNECTS, CONDUCTORS AND LIQUID FLEX FROM NEW UNITS

TO DISCONNECTS.

8. PROVIDE SUPPORTS AS NEEDED FOR REFRIGERANT LINE PIPING AND INSULATION. SUPPORTS SHALL INCORPORATE OVERSIZED PVC SLEEVES TO ELIMINATE COMPRESSION OF INSULATION. EXPOSED INSULATION SHALL BE COVERED WITH TYPE II COATING FOR UV PROTECTION OF THE INSULATION. THRU-

WALL SLEEVES SHALL BE RESEALED AFTER INSTALLATION OF THE NEW UNITS.

9. INFERFACE NEW UNITS WITH FIRE ALARM CONTROL PANEL FOR SHUT-OFF OF SYSTEMS IN THE EVENT OF AN ALARM. PROVIDE DUCT DETECTOR WITHIN RETURN AIR DUCT AND CONNECT/INTERFACE TO FIRE

ALARM CONTROL PANEL.

NG PIPING CAN BE REUSED. CONTRACTOR TO VERIFY

REGULATOR SIZE FOR EQUIPMENT. PROVIDE NEW FLEX

DOWNSTREAM FOR GAS VALVES AT UNITS.

NEW HVAC CONDENSERS, AIR HANDLERS AND

FURNACES. TYPICAL 2 EACH. SEE SPECS.

CONSTRUCT NEW VERTICAL WALL (TOP OF WOOD PLATE TO

BOTTOM OF RAFTER AND INSTALL DRYWALL

SD

B

5 6A

5 7

NEW 4' LED

WEATHERPROOF FIXTURE

RETURN AIR DUCT

SUPPLY

TRANSITION

DUCT

NEW

FURNACE

NEW

FURNACE

NEW

AH-2

NEW

AH-1

NEW INSULATED

ALUMINUM PLENUM BOX

NG LINE

NEW CONDENSATE DRAIN

NEW DISCONNECT NEW DISCONNECT (TYP. BOTH UNITS)

NEW 1" FLEX (TYP. BOTH UNITS)

NEW 1/2" FLEX

NEW REFRIG PIPING W/INSULATION

AND TYPE II COATING ON EXTERIOR

NEW THERMOSTAT FROM

INTERIOR SENSOR

NEW DRYER (TYP. BOTH UNITS)

EXISTING CMU

MECHANICAL ROOM WALL

NEW 1/2" FLEX (TYP. BOTH UNITS)

x

O

.C x

O

.C

RAFTERS @ 16" O.C.

TOP PLATE OF EXTERIOR

BARRACKS WALL

3" THRU WALL SLEEVE (EXTG)

LINE SETS

O/A DUCT

PROVIDE AND INSTALL 5/8" TYPE “X” DRYWALL OVER CEILING

AND VERTICAL WALLS OF MECHANICAL ROOM FRAMING.

CONSTRUCT, FRAME AND INSTALL DRYWALL AROUND

DUCTWORK ON BACK WALL (BARRACKS WALL) FROM CEILING TO

WOOD TOP PLATE. REMOVE, REPLACE AND RE-INSULATE

DUCTWORK TO ACCOMPLISH WALL AND DRYWALL

CONSTRUCTIONL

PROVIDE NEW FLEXIBLE

CONNECTOR

NEW LINE SETS/INSULATION TO NEW

OUTSIDE UNITS

RELOCATE ANY DEVICES AND/OR SUPPORTS ATTACHED

TO WOOD FRAMING TO THE NEW DRYWALL SURFACE.

SEAL ALL-THRU WALL PENETRATIONS.

NEW FIRESTAT

RE-SECURE/REPLACE NG

LINE SUPPORT HERE

RESEAL PENETRATION UPON COMPLETION

OF INSTALLATION (TYP. BOTH SIDES)

SECTION

SCALE: ¾” = 1'-0"

B

5 6

RE-USE AND RE-INSULATE

RETURN AIR DUCT

NEW WORK SECTION

SHEET 6 OF 8

FU

R

N A

C E

V

EN

T

3'-0"

1'-6"

6"

6'-8"

2'-0 ½” 2'-2 ½”2'-5”

1'-4” O.C. 1'-4” O.C. 1'-4” O.C.1'-4” O.C.1'-4” O.C.

3'-4" 3'-4"

.080" ALUMINUM TOP AND FRONT OF PLENUM

BOX. ATTACH WITH SELF TAPPING SCREWS

CENTER SUPPORT ALUMINUM ANGLE (BOLTED OR

WELDED CONNECTION WITH BASE TAPCONED

INTO CONCRETE). TYPICAL TWO EACH

REAR SUPPORT ALUMINUM ANGLE. TAPCON TO REAR CMU

WALL IN CENTER OF PLENUM BOX. TYPICAL ONE EACH

END ALUMINUM SUPPORT ANGLE. TAPCON

TO EXISTING CMU WALL ON TOP AND SIDES

EXISTING REAR CMU WALL

EXISTING CONCRETE SLAB

2" X 2" X 1/8"

X

X

/8

X

X

/8

X

X

/8

EXISTING SIDE CMU WALL

TAPCON FASTENERS

EXISTING CONCRETE SLAB

EXISTING SIDE CMU WALL

OF MECH ROOM

2" X 2" X 1/8"

X

X

/8

X

X

/8

X

X

/8

X

/8

FL

A

T

X

X

/8

X

X

/8

2" X 2" X 1/8"2" X 2" X 1/8"

X

/8

FL

A

T

X

/8

FL

A

T

X

/8

FL

A

T

.080" ALUMINUM TOP AND FRONT

OF PLENUM BOX. ATTACH WITH

SELF TAPPING SCREWS

END ALUMINUM SUPPORT

ANGLE. TAPCON TO EXISTING

CMU WALL ON TOP AND SIDES

ANGLE PLACEMENT MAY

VARY SLIGHTLY WITH

ACTUAL UNIT SIZES

2" X 1/8" FLAT ALUMINUM STOCK – FIELD WELD

TO ALUMINUM ANGLE – TYP AT 16" O.C.

TAPCON FASTENERS

2" X 2" X 1/8" ALUMINUM ANGLE ATTACHED

TO CONCRETE SLAB – FULL WIDTH OF ROOM

SHEET 7 OF 8

SECTION

SCALE: ¾” = 1'-0"

7 7

ELEVATION

SCALE: ¾” = 1'-0"

A

5 7

NEW PLENUM BOX ELEVATION

FRAMING DETAIL

FURNACE

CUT OUT

FURNACE

CUT OUT

RETURN

CUT OUT

L Lc c 2'-2 ½”2'-0 ½”2'-5”

Lc 3'-4” 3'-4”

6'-8” cL 3 cL L LL ccc

1'-4” 1'-4”1'-4”1'-4” 1'-4”

X

X

/8

X

X

/8

X

X

/8

X

X

/8

2" X 2" X 1/8"

2" X 2" X 1/8"

EXISTING CMU WALL

TAPCON FASTENERS

2" X 1/8" FLAT ALUMINUM STOCK – FIELD WELD

TO ALUMINUM ANGLE – TYP AT 16" O.C.

REAR SUPPORT ALUMINUM ANGLE.

TAPCON TO REAR CMU WALL IN CENTER OF

PLENUM BOX. TYPICAL ONE EACH

CENTER SUPPORT ALUMINUM ANGLE (BOLTED OR

WELDED CONNECTION WITH BASE TAPCONED

INTO CONCRETE). TYPICAL TWO EACH

TOP ALUMINUM CONTINUOUS SUPPORT FRAME.

ALL CONNECTIONS FIELD WELDED AND FRAME

TAPCONED TO CMU AND CONCRETE SLAB

.080" ALUMINUM TOP AND FRONT OF PLENUM

BOX. ATTACH WITH SELF TAPPING SCREWS

NOTES:

(1) APPLY 1" THICK DUCTLINER WITH ADHESIVE TO INTERIOR OF

NEW ALUMINUM (TOP AND FRONT) OF PLENUM BOX.

(2) APPLY FULL BEAD OF SILICONE SEALANT TO ANGLE ALUMINUM

WHERE ATTACHED TO CMU WALLS AND FLOOR. APPLY FULL

BEAD OF SILICONE SEALANT BETWEEN ANGLE ALUMINUM AND

FLAT ALUMINUM STOCK AND .080" ALUMINUM, PRIOR TO

ATTACHING ALUMINUM WITH SCREWS (TO CREATE AIR TIGHT

CHAMBER).

(3) SEAL NEW UNITS AND RETURN AIR DUCTWORK TO NEW

ALUMINUM METAL BOX PLENUM.

(4) FIELD VERIFY FURNACE CUT-OUT AREAS AND RETURN CUT-OUT

WITH NEW MATERIAL/EQUIPMENT PRIOR TO TOP FABRICATION.

MITER AND/OR FIELD

WELD ALUMINUM ANGLE

FRAME. THEN PRE-DRILL

AND BOLT

SHEET 8 OF 8

NEW PLENUM BOX PLAN VIEW

FRAMING DETAIL

SCALE: ¾” = 1'-0"