Towsley 125 Locust St TA3977-M1 Drawing - 062322aTOWSLEY ASSOCIATES
CONSULTING ENGINEERS
EAST LONGMEADOW, MA
PETER McNULTY DPW ADMINISTRATION BUILDING
125 LOCUST ST - NORTHAMPTON, MA
M-1
OF 1TA-21-432
WAT
KCC
1/4"=1'-0"06/24/22
NEW VENTILATION SYSTEM
FLOOR PLAN / DETAILS & SCHEDULES / GENERAL NOTES
SCALE: 1/4"=1'-0"
VENTILATION FLOOR PLAN
CONDENSING
UNIT
CONDENSING UNIT
CONDENSING
UNIT
CONDENSING
UNIT
CONDENSING
UNIT
DUCTLESS
UNIT
DUCTLESS UNIT
DUCTLESS UNIT
DUCTLESS UNIT
DUCTLESS UNIT
DUCTLESS UNIT
4"Ø CD
40 CFM4"ØVD
4"Ø CD
40 CFM4"ØVD4"ØVD
4"Ø CD
40 CFM
4"ØVD
4"Ø CD
40 CFM
6" x 6"
6" x 6"5"Ø4" x 6"ELECTRIC
BASEBOARD
RADIATION
5"Ø ER
60 CFM
5"Ø4" x 6"5"Ø ER
60 CFM
RAIN LEADER
COMPUTER
ROOM
STAFF
DISCONTINUE TOILET
EXHAUST FANS
8" x 6"VD5"Ø CD
70 CFM
5"Ø
VD6" x 6"10" x 6"WAITINGRECEPTION
VD
4"Ø4"Ø ER
40 CFM
VD
4"Ø4"Ø ER
40 CFM
6" x 6"VD VD
8" x 6"8" x 6"
LIGHTS (TYP.)
5"Ø CER
70 CFM
VD
5"Ø
8" x 6"VD
4"Ø
4"Ø CD
45 CFM
VD4"Ø
4"Ø ER
45 CFM
OFFICE
BOARD ROOM 12" x 6"12" x 7"TYPICAL DUCT BRANCH
TAKE-OFF: SEE DETAIL10" x 6"VD
4"Ø
4"Ø CD
45 CFM
10" x 8"VD
INSTALL ALL DUCTWORK
ABOVE CEILING12" x 10"TURNING VANES
TYPICAL: SEE DETAIL4"Ø4"Ø ER
45 CFM
VD
12" x 8"12" x 9"
VD
DUCTLESS UNIT
RELOCATION OF EXISTING AIR COOLED
CONDENSING UNIT TO INSTALL NEW
ENERGY RECOVERY UNIT BY OWNER
TWO (2) 12" x 10" DUCTS DN AT WALL
HEAT RECOVERY VENTILATOR UNIT
(ERV): REFER TO SCHEDULE. MOUNTED
ON NEW 8" HIGH CONCRETE PAD.
MOUNT UNIT ON ANGLE IRON FRAME
2'-0"± ABOVE GRADE. 12" x 10" SUPPLY
AND EXHAUST THROUGH WALL DN TO
UNIT. TRANSITION DUCTWORK TO
SUPPLY AND EXHAUST OF UNIT.
INSTALL FLEX. CONN. AT UNIT
EXHAUST AIR WEATHER HOOD
OUTDOOR AIR WEATHER HOOD
CUT, PATCH,
AND SEAL
OUTSIDE WALL
TO INSTALL
DUCTWORK
DEPARTMENT OFFICE
5 KW ELECTRIC
DUCT HEATER
12" x 10"VD
20" x 4"
A
M1
A
M1
5"ØVD
5"ØVD6" x 6"5" x 4"6" x 6"VD
5"Ø CD
50 CFM
5"Ø CD
50 CFM
FINANCIAL
ADMINISTRATION
DPW
DIRECTOR
ENGINEERING DRAFTING CITY ENGINEER
5"Ø CD
60 CFM
5"Ø VD
VD 8" x 6"VAULT
5"Ø 4"Ø10" x 6"12" x 6"
VD
VD
5"Ø CD
60 CFM
4" x 4"4"Ø CD
40 CFM
5"Ø5"Ø ER
50 CFM5" x 4"5"Ø ER
50 CFM
5"Ø
VD
5"Ø
VD
5"Ø ER
60 CFM
6" x 6"6" x 6"5" x 4"VD 4"Ø4"Ø ER
40 CFM
VD5"Ø ER
60 CFM
6" x 6"
5"Ø
VD
8" x 8"12" x 6"
GENERAL NOTES
1. AVOID ELECTRICAL CONDUIT, CABLE WIRING, AND REFRIGERANT PIPING ABOVE
SUSPENDED CEILINGS WHEN INSTALLING SUPPLY AND EXHAUST DUCTWORK.
2. CEILING GRID TO BE REMOVED AND REPLACED BY OTHERS.
3. CUT, PATCH, AND FIRE SEAL SHEET ROCK WALLS ABOVE CEILING TO INSTALL
DUCTWORK (REFER TO SECTION "B" - "B").
4. WHERE REQUIRED, RELOCATE ELECTRICAL CONDUIT, CABLE OR REFRIGERANT
PIPING ABOVE CEILING TO INSTALL NEW DUCTWORK AT NO COST TO THE OWNER.
5. CUT, PATCH, AND SEAL WATER TIGHT OUTSIDE BRICK WALL TO INSTALL NEW
SUPPLY AND EXHAUST DUCTWORK (REFER TO DETAIL).
6. HANG NEW SUPPLY AND EXHAUST DUCTWORK ABOVE CEILING FROM ROOF
JOISTS. REPAIR PLASTIC SHEATHING (APPROX. 14" CLEAR ABOVE SUSPENDED
CEILINGS).
7. RELOCATION OF EXISTING AIR COOLED CONDENSING UNIT TO INSTALL NEW
ENERGY RECOVERY UNIT BY OWNER.
8. MOUNT NEW ERV UNIT ON 8" HIGH CONCRETE PAD APPROX. 4'-6" x 4'-6".
9. SUPPLY DIFFUSERS TITUS "TMSA". EXHAUST REGISTERS TITUS "50 FL".
10. INSULATE OUTSIDE DUCTWORK AND ALL CONCEALED SUPPLY DUCTWORK
ABOVE CEILING: REFER TO SPECIFICATIONS.
11. ELECTRICAL DUCT HEATER MOUNTED IN 12" x 10" SUPPLY DUCT 5 KW / 120 / 240
V 1 PH 24 VOLT CONTROL WITH SCR CONTROL LIMIT SWITCH / MANUAL RESET HIGH
LIMIT AND AIR FLOW SENSOR.
12. ELECTRICAL NOTES - WIRE ELECTRIC DUCT HEATER TO SPARE #18 IN EXISTING
ELECTRICAL PANEL #2. WIRE HEAT RECOVERY UNIT TO SPARE #24 IN EXISTING
ELECTRICAL PANEL #2.
13. MAXIMUM USE OF FLEX DUCT IS 10'-0".
14. REFER TO SPECIFICATIONS FOR PROJECT PHASING. COORDINATE WITH DPW
ENGINEERING STAFF.
15. EXACT LOCATION OF SUPPLY DIFFUSERS AND EXHAUST REGISTERS TO BE
DETERMINED IN THE FIELD.
ELECTRIC HEATING
COIL
ROOF JOISTS
10" x 12"10" x 12"EXISTING DUCTLESS
UNIT TO REMAIN
FLEX. CONN.
CUT, PATCH, AND SEAL
OUTSIDE WALL
(SEE DETAIL)
HEAT RECOVERY UNIT
ON ANGLE IRON FRAME
EXHAUST HOOD
2'-0" HIGH ANGLE
IRON FRAME OR
UNISTRUT
8" HIGH CONCRETE PAD
SCALE: 1/4"=1'-0"
SECTION "A" - "A"
ROOF
2' x 2' SUSPENDED
CEILING & GRID
SECURE FRAME TO
CONCRETE PAD
SECURE UNIT TO ANGLE IRON
FRAME OR UNISTRUT
NOTE 8
FLEXIBLE
DUCTWORK
(TYPICAL)
NOTE 6
NOTE 9
NOTE 3
NOTE 1
NOTE 10
NOTE 3
B
M1
B
M1
ELECTRIC
PANEL
UTILITY
ROOM
NOTE 1
NOTE 9
NOTE 2
NOTE 10
NOTE 9
NOTE 9
NOTE 3
NOTE 2 NOTE 6
NOTE 1 WALKWAYNOTE 3
NOTE 6
NOTE 2
NOTE 7
NOTE 5FLEX CONNSCALE: 1/4"=1'-0"
SECTION "B" - "B"
TYP. WALL PENETRATION
2' x 2' SUSPENDED
CEILING & GRID
ROOF JOISTS
6" x 10" DUCT
CUT, PATCH, AND
SEAL WALLS ABOVE
CEILING: TYPICAL AT
ALL PENETRATIONS
EXISTING WALL
CEILING SPACE
APPROX. ± 16"FLOOR
COUNTER
NOTE 3
NOTE 3
DUCTLESS
UNIT NOTE 3
INSTALL DUCTWORK
BETWEEN VAULT
CEILING AND ROOF
STRUCTURE
TTO ELECTRIC DUCT
HEATER
REFER TO DUCT
BRANCH TAKE-OFF
DETAIL
ELECTRIC
DISCONNECT
WIRE TO
SPARE #24
IN P-24" X 5"10" x 6"
8" x 8"
BUILDING ELECTRIC
SHUT OFF
MAIN DISTRIBUTION
PANEL
PANEL P-1
PANEL P-2
NOTE 12
EXISTING
CONDUIT
CEILING FAN
CEILING FAN
CEILING FAN
CEILING
FAN
SUPPLY
EXHAUST
EXHAUSTSUPPLYNOMINAL
CFM
SUPPLY
CFM
EXHAUST
UNIT
NO.
1 580 620
O U T D O O R E N E R G Y R E C O V E R Y U N I T S C H E D U L E
EXTERNAL
SP IN WC
1.0
VOLTAGE
120 / 240
1 PH / 60 Cy
SUPPLY &
EXHAUST
MOTORS
HP
1/2
MCA
AMPS
8.9
MOP
AMPS
15
MFG. MODEL NO.
BASED ON
GREENHECK
CONSTANT VOLUME UNIT
ERV-10-20L-VG
WEIGHT
300 LBS.
REMARKS
FURNISH UNITS WITH STANDARD EQUIPMENT, TIME CLOCK,
DUCT HEATER, PROVIDE FACTORY START-UP SERVICE
OUTLET, 2" MERV13 FILTERS. REFER TO SPECIFICATIONS
FOR MORE DETAILS. SOUND LEVEL: 65.1 DBA / SONES 14
NOTE: RENWAIRE OR AIR EXCHANGER CONSIDERED EQUAL
VD
L WMAIN DUCT
TAPERED CONNECTION 45° (IF MAIN DUCT IS
RECTANGULAR) OR CONICAL CONNECTION (IF
MAIN DUCT IS ROUND) L = 1/4 W: 4" MIN.
BRANCH DUCT
EXHAUST AIR
SUPPLY AIR
SCALE: NONE
DUCT BRANCH TAKE OFF DETAIL
2" RADIUS FOR DUCTS 19" AND
WIDER
1" RADIUS FOR DUCTS UP TO
18" WIDE
4" RADIUS FOR DUCTS 19" AND
WIDER
2" RADIUS FOR DUCTS UP TO
18" WIDE
SCALE: NONE
DUCT ELBOW AND VANE DETAILS 1-1/8" MIN.1-1/8" FOR DUCTS UP TO 18" WIDE
2-1/4" FOR DUCTS 19" AND WIDER
SAME RADIUS AS VANES
SHEET METAL SCREWS BOTH
SIDES OF EVERY OTHER BLADE
INSULATED DUCT, PITCH
DOWNWARD AT EXTERIOR
TO SHED WATER, 2% PITCH
MIN., TYP.:
STRUCTURAL ANGLE FOR EACH 4" WYTHE
OF MASONRY - L 4x3 1
2" X 5
16". LOOSE ANGLE
LINTELS
NEW AZEK OR EQUAL TRIM
SURROUND, INSET, SEALED TO
DUCT & MASONRY
EXISTING WALL BARRIER SYSTEM:
CUT EXISTING WALL BARRIER, INSERT NEW
LINTEL FLASHING BEHIND BARRIER, ADHERE
TO EXISTING PLYWOOD
MASONRY WEEP TUBING
ATOP FLASHING, 2 MIN.
EACH OPENING, TYP.:
SEALANT JOINT W/
CLOSED-CELL BACKER ROD:
NEW 20 OZ RED COPPER FLASHING
PAN AT BASE, FLAIR SIDES UP 1"
TREMCO DYMONIC FC CAULK OR
EQUAL W/ BACKER, TYP.:
NEW 3
4" X 4" AZEK OR EQUAL FRAME
AROUND PERIMETER OF ENTIRE
DUCT
CUT DRYWALL, PLYWOOD &
MASONRY, REMOVE AND SECURE
TEMPORARILY AS REQUIRED
APPROX. (2) 14" x 14" OPENINGS
MEASURE IN FIELD
SCALE: NONE
TYPICAL WALL FLASHING / LINTEL DETAIL