APPROVED PLN BLD2024-1206+Mechanical_Plan+9.12.2024_10.57.12_AM+4496276SUPPLY, RETURN, EXHAUST, and RELIEF AIR DUCTWORK INSULATION
Climate
Minimum Installed
Duct system
Duct Location and Use
Zone
Duct Insulation
Notes
R-value a,b
Supply Air or
Outside the building (outdoors and
4C
R-8
See Section C403.10.1.2 for
Return Air
exposed to weather)°
details
Supply Air or
Unconditioned space (enclosed but not
4C and
R 6
See Section C403.10.1.2 for
Return Air
in the building conditioned envelope)
56
details
Unconditioned space where the duct
See IMC Section 603.12 for
Supply Air or
conveys air that is within 15°F of the
4C and
additional requirements for
Return Air
air temperature of the surrounding
5B
condensation condensation control at
unconditioned space
ductwork
Duct or plenum is separated
Supply Air or
Where located in a building envelope
4C and
R-16
from building envelope
Return Air
assembly
513
assembly with the minimum
insulation value
Within conditioned space where the
4C and
See Section C403.10.1.2 for
Supply Air
supply duct conveys air that is less
513
R-3.3
details
than 55°F or greater than 105°F
Within conditioned space that the duct
See Section C403.10.1.2 for
Supply Air
directly serves where the supply duct
4C and
None
details
conveys air that is less than 55°F or
513
greater than 105°F
Within conditioned space where the
4C and
Supply Air
supply duct conveys air that is 55 °F or
5B
None
greater and 105 °F or less
Within conditioned space, downstream
Return or
of an energy recovery media,
4C
R-8
Exhaust Air
upstream of an automatic shutoff
damper
Relief or
Col)ditioned'spac6 and downstream of
4C and
R-16
Exhaust Air
an automatic shutoff damper
5B
a. Insulation R-values, measured in h.ft2.°F/Btu, are for the insulation as installed and do not include film resistance. The
required minimum thicknesses do not consider water vapor transmission and possible surface condensation. Insulation
resistance measured on a horizontal plane in accordance with ASTM C518 at a mean temperature of 75°F at the
installed thickness.
b. See International Mechanical Code Sections 603.12 and 604 for further details on duct insulation requirements.
c. Includes attics above insulated ceilings, parking garages and crawl spaces.
C403.10.2 Duct construction. Ductwork shall be constructed and erected in accordance with the
International Mechanical Code. For the purposes of this section, longitudinal seams are joints oriented in the
direction of airflow. Transverse joints are connections of two duct sections oriented perpendicular to airflow.
Duct wall penetrations are openings made by any screw, fastener, pipe, rod, or wire. All other connections are
considered transverse joints including, but not limited to, spin -ins, taps and other branch connections, access
door frames and jambs, and duct connections to equipment.
C403.10.2.1 Low-pressure duct systems. Longitudinal and transverse joints, seams and connections of
supply and return ducts operating at a static pressure less than or equal to 2 inches water gauge (w.g.) (500
Pa) shall be securely fastened and sealed with welds, gaskets, mastics (adhesives), mastic -plus embedded -
fabric systems or tapes installed in accordance with the manufacturer's installation instructions. Pressure
classifications specific to the duct system shall be clearly indicated on the construction documents in
accordance with the International Mechanical Code.
Exception: Continuously welded and locking -type longitudinal joints and seams on ducts operating at
static pressures less than 2 inches water gauge (w.g.) (500 Pa) pressure classification.
VENTILATION CALCULATIONS
RTU-1:
WAITING AREA: (7 People)(5 CFM/Person)+(235 ft2)(0.06) = 49 CFM
RECEPTION DESK: (2 People)(5 CFM/Person)+(121 ft2)(0.06) = 17 CFM
WARDS: (1.36 People)(7.5 CFM/Person)+(136 ft2)(0.18) = 35 CFM
EXAM 1-2 & 4: (6 People)(5 CFM/Person)+(261 ft2)(0.06) = 46 CFM
PHARMACY: (I People)(5 CFM/Person)+(57 W)(0.06) = 8 CFM
HALL: (250 ft2)(0.06) = 15 CFM
TOTAL MINIMUM OSA FOR RTU-1 = 170 CFM x 1.5 (150% ALLOWED) = 255 CFM
HVAC SCOPE OF WORK:
♦ Replace the existing dryer exhaust ductwork with new. New roof penetration.
♦ New diffusers and grilles per plan and replace existing diffusers and grilles per plan.
♦ Relocate two existing thermostats.
♦ EF 2-3: Two (2) new inline exhaust fans and associated exhaust ductwork up through roof.
■ One (1) new 120-Volt motorized back -draft damper and one barometric back -draft damper.
♦ Start-up & Test
♦ Air Balance.
ALL WORK SUBJECT
TO FIELD
INSPECTION FOR
CODE COMPLIANCE
APPROVED
PLANS MUST BE
ON JOB SITE
U D ITE D IS
SYSTEMS
MECHAICI I CAL_ L_ L_C
A FULL SERVICE COMMERCIAL
HVAC CONTRACTOR
1400 AIRPORT WAY SOUTH
SUITE 202
SEATTLE, WASHINGTON 98134
(206)933-6036/FAX 937-3084
REVISIONS
DATE DISCRIPTION
RTU-2:
OPEN TREATMENT/DENTAL: (4 People)(7.5 CFM/Person)+(305 ft2)(0.18) = 85 CFM
PROCEDURE ROOM: (2 People)(7.5 CFM/Person)+(195 ft2)(0.18) = 50 CFM
CityOfEdmonds
BREAK: (3 People)(5 CFM/Person)+(168 ft2)(0.06) = 22 CFM
XRAY: (I People)(5 CFM/Person)+(81 ft2)(0.06) = 10 CFM
Building Department
EXTG OFFICE: (1 People)(5 CFM/Person)+(120 ft2)(0.06) = 12 CFM
PROCEDURE: (2 People)(5 CFM/Person)+(118 ft2)(0.06) = 17 CFM
Work ; MECHANICAL FOR T/I
�
EXAM #3: (2 People)(5 CFM/Person)+(73 ft2)(0.06) = 4 CFM
HALL: (260 ft2)(0.06) = 16 CFM
ts-----------------------31-----------A -9 ------
N
Address 22315 HIGHWAY 99
TOTAL MINIMUM OSA FOR RTU-2 = 216 CFM x 1.5 (150% ALLOWED) = 324 CFM
-- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
Owner DR HOUGH
M
M
M
EXHAUST:
OPEN TRE./DENTAL ROOM: (306 ft2)(0.9) = 275 CFM
O
M
U)
Approved Date 09/20/2024
PROCEDURE ROOM: (118 ft2)(0.9) = 106 CFM
13
i
DOG WARD: (94 ft2)(0.9) = 85 CFM
Building Official Erg C4wter
ISO WARD: (23 fC)(0.9) = 21 CFM
--------------------
E
CAT WARD: (21 ft2)(0.9) = 19 CFM
Permit Number; BLD2024-1206
LO
W
M
N
N
Parcel
#6293000013
AREA OF
SUITE
RK
El
a�
DTIUM THE
s
PLAZA
FILE NAME Dr. Hough - Vet
PROJECT ENGINEER PC
DATE REVISED : 9/18/2024
JOB NUMBER :9887
SHEET NUMBER
M=1
JURISDICTION APPROVAL STAMP
RECEIVED
Sep 12 2024
CITY OF EDMONDS
DEVELOPMENT SERVICES
DEPARTMENT
SITE PLAN - PLUM TREE PLAZA
SCALE:1:50
L
THESE DRAWINGS ARE THE PROPERTY OF UNITED SYSTEMS MECHANICAL LLC AND MUST NOT BE REPRODUCED, ALTERED OR USED WITHOUT THE PRIOR WRITTEN AUTHORITY OF UNITED SYSTEMS LLC, THESE DRAWINGS ARE TO BE USED ONLY AS SUPPLEMENTARY TO THE ARCHITECT'S DRAWINGS AND SPECIFICATIONS ANY PROPOSED VAR OLPARIVRLS rROM THESE DRAWINGS MUST Bt APPROVtD BY UNIItD SYSTEMS MECHANICAL LLC.
BLD2024-1206
ANEW EXHAUST FAN SCHEDULE
TAG
SERVICE
MAKE & MODEL#
DESIGN
ELECTRICAL
FAN
WEIGHT
EF NOTES
CFM
EFFICIENCY
Watts/CFM
EF-2
WARDS/RR 101
Fantech
250
120/1/60
0.24
X<10#
1112, 3, 5
FG-8 EC
@0.35"
AMPS= 1.32
EF-3
DENTAL/PROCEDURE/RR/ BREAK/DOG
Fantech
550
120/1/60
0.2
X<15#
11 21 41 5
WARD/ISO WARD/LAB/LAUNDRY
FG-12 EC
@0.5"
AMPS= 2.10
EXHAUST FAN NOTES:
1) FAN HAS AN ECM MOTOR.
2) POWER WIRING, DISCONNECTS, INTERLOCKS & CONTROLS BY E.C.
3) EXHAUST DUCT TERMINATION TO HAVE A NON -MOTORIZED BACK -DRAFT DAMPER WITH A GASKETED SEAL ALLOWED BY
2021 WSEC SECTION C403.7.8.1, EXCEPTION 1.1.2., AND NOT REQUIRED TO BE TESTED TO VERIFY THE AIR LEAKAGE RATING WHEN INSTALLED IN
EXHAUST SYSTEMS WHERE THE EXHAUST CAPACITY DOES NOT EXCEED 300 CFM & THE GRAVITY DAMPER IS PROVIDED WITH A GASKETED SEAL
PER 2021 WSEC SECTION C403.7.8.3, EXCEPTION 1.
4) EXHAUST DUCT TERMINATION TO HAVE A CLASS 1120-VOLT MOTORIZED BACK -DRAFT DAMPER. DAMPER SHALL HAVE A LEAKAGE RATE OF 4 CFM/FT2 AT 1.0" WATER
GAUGE WHEN TESTED IN ACCORDANCE WITH AMCA 500D AND SHALL BE LABELED BY AN APPROVED AGENCY.
DAMPER TO BE INTERLOCKED/POWERED BY E.C.
5) KEEP ALL NEW EXHAUST TERMINATIONS TO BE A MINIMUM OF 10' AWAY FROM ALL MECHANICAL OSA INTAKE OPENINGS.
CD-1: 8" RND
200 CFM
(2-TYP)
I I
I
EG-2: 6"x6"
50 CFM
CD-2: 6"x6"
30 CFM
NISEX
R.R.
101
RTU-1: EXISTING 3-TON PACKAGED
ROOFTOP GAS PACK.
REBALANCE OSA INTAKE TO 342
R/N
EG-2: 6"x6"
CD-1: 8" RND 50 CFM
120 CFM (2-TYP)
' I
a
(2-TYP)
� � N
IS
N 11
A
A
/N
N
NEW 8" RND EXHAUST
DUCTWORK UP THROUGH
THE ROOF WITH BDD
CD-2: 6"x6"
50 CFM EG-2: 6"x6"
100 CFM
WARD E
ICa BDD 1 11 U TI LI TY
119
N WH
O
CD-2:6"x6" U
100 CF
E N EF-1
H L
N
EXTG.
6 R.R.
118
CD-1: 6" RND
)�
75 CFM
I
CD-1: 12" RND
275 CFM
OP N M EF-3
TREAT EN i 12 0
11 N Is
UN C
CIO -",I LeLNVN
R/N N LL�I
CD-1: 8" RND PHARMA Y BCD-1: 6" RND
150 CFM 106 N 50 CFM
O N
EXAM HALL
102
4E-1
:22%10"
N 275 CFM
CD-1: 8" RND
200 CFM
M #2
lFk
N
TG-1: 22"x10"
TO 8" RND
(9-TYP)
HVAC T.I. PLAN, SUITE H
SCALE: 1/8"=1'-0"
R/N
TAL
M # 113 ^ ,q
R/N
P.O.C.
AiLl
CD-1: 8" RND CD-1: 8" RND EG-1: 22%10" RG-1: 22"x22"
110 CFM 190 CFM 125 CFM
NEW 12" RND EXHAUST
DUCTWORK UP THROUGH
THE ROOF WITH MTRZED BDD
I,N
P.O.C.
IklI
N
EG-2: 6"x6"
50 CFM
REPLACE THE EXISTING 4" ROUND
DRYER EXHAUST DUCTWORK &
REPLACE WITH NEW UP THROUGH A
NEW ROOF PENETRATION.
W
f�►1
N
BREAK ROO
117
I
CD-1: 8" RND
135 CFM
T
� 0 M
CD-1: 8" RND
150 CFM
EG-1: 22%10"
100 CFM
RTU-1: EXISTING 3-TON PACKAGED
ROOFTOP GAS PACK.
REBALANCE OSA INTAKE TO 342
CD-1: 6" RND
75 CFM
CD-1: 8" RND
150 CFM
DRAWING T.I. NOTES:
R/N = REPLACE & RELOCATE EXISTING
& RECONNECT TO EXISTING DUCTWORK
E = EXISTING
N=NEW
CD = CEILING DIFFUSER
TG = TRANSFER GRILLE
RG = RETURN GRILLE
RND = ROUND
TYP = TYPICAL
RTU = ROOFTOP UNIT
P.O.C. = POINT OF CONNECTION (TO EXISTING)
Q = THERMOSTAT
—0= MOTORIZED DAMPER
BDD = BACK -DRAFT DAMPER
U Ill ITE D IS
SYSTEMS
MECHAN I CAL_ L_ L_C
A FULL SERVICE COMMERCIAL
HVAC CONTRACTOR
1400 AIRPORT WAY SOUTH
SUITE 202
SEATTLE, WASHINGTON 98134
(206)933-6036/FAX 937-3084
REVISIONS
DATE DISCRIPTION
to
cV
m
co
�o
■
.T_
E
2
LC)
LV
TIM
N
APPROVED BY PLANNING
Sep 27 2024
FILE NAME Dr. Hough - vet
PROJECT ENGINEER PC
DATE REVISED :9/18/2024
JOB NUMBER :9887
SHEET NUMBER
M=2
JURISDICTION APPROVAL STAMP
RECEIVED
Sep 12 2024
CITY OF EDMONDS
DEVELOPMENT SERVICES
DEPARTMENT
BLD2024-1206
THESE DRAWINGS ARE THE PROPERTY OF UNITED SYSTEMS MECHANICAL LLC AND MUST NOT BE REPRODUCED, ALTERED OR USED WITHOUT THE PRIOR WRITTEN AUTHORITY OF UNITED SYSTEMS LLC. THESE DRAWINGS ARE TO BE USED ONLY AS SUPPLEMENTARY TO THE ARCHITECT'S DRAWINGS AND SPECIFICATIONS, ANY PROPOSED VARIATIONS OR DEPARTURES FROM THESE DRAWINGS Ml'