HomeMy WebLinkAbout5 Smoke Control Commissioning Report
Bradshaw Building Solutions, Inc.
BBRRAADDSSHHAAWW BBUUIILLDDIINNGG SSOOLLUUTTIIOONNSS,, IINNCC..
6960 Buckskin Drive
Littleton, CO 80125
OFFICE: 303-277-0420
FAX: 303-277-0850
February 6, 2017
David Coffey
RKMI
3800 Xanthia St.
Denver, CO 80238
Re: Vail Strata – 705 W. Lionshead Circle, Vail, CO
Smoke Control System Test
Dear David:
On February 1, 2017 and February 6, 2017, Greg Bradshaw with Bradshaw Building Solutions, Inc., (BBSi)
conducted testing of the Smoke Control System of the Vail Strata located at 705 W. Lionshead Circle in
Vail, CO . A description of the building systems and the test results follow:
I. The Smoke Control System consists of the following:
A. Type of Building/Use: Condominium building
B. Number of Floors: 10 levels - 7 Tenant Levels plus 3 garage levels below
C. Pressurized Stairwells: 2 (Southeast & Northwest)
1. Stairwell Fan(s) and Location(s): 2 fans located on roof & 1 fan located at level 1 (NW stair)
2. Static Pressure Control: VFD for static pressure control with high/low limits
D. Hoistway Pressurization:
1. Hoistway Fan(s) and Location(s):
2. Static Pressure Control:
East Hoistway (E1, E2) & West Hoistway (W1, W2)
2 fans located on the roof for east & west hoistways
Fixed speed VFD for differential pressure control
David Coffey - RKMI
Vail Strata – Smoke Control System Test
February 6, 2017
Page 2
Bradshaw Building Solutions, Inc.
II. The following tests were conducted:
A. Test 1
1. On February 1, 2017, a manual pull station was activated at 2:28 AM on Level 1. Due to
some door opening forces being too high on that date, this test was partially redone on
February 6, 2017 by activating a manual pull station on level 1 at 1:06 PM (these readings
are in italics). This activated the stairwell pressurization system and hoistway
pressurization system. Additional tests were conducted with smoke detectors & sprinkler
flow switches with the same results. The following readings were observed:
Floor SE Stair A
Diff. Pres.
SE Stair A
Door Pull
NW Stair B
Diff. Pres.
NW Stair B
Door Pull
East Elev
Diff. Pres.
West Elev
Diff. Pres.
7 NA NA 0.17” 20# NA 0.17”
6 0.16” 22# 0.17” 21# 0.16” 0.17”
5 0.15” 27# 0.17” 20# 0.18” 0.13”
4 0.15” 23# 0.16” 25# 0.18” 0.11”
3 0.15” 21# 0.12” 19# 0.17” 0.12”
2 0.13” 21# 0.13” 20# 0.18” 0.12”
1 0.14” 14# 0.16” 15# 0.19” 0.16”
P1 NA NA 0.16” 22# 0.17” 0.18”
P2 NA NA 0.16” 21# 0.20” 0.12”
P3 NA NA 0.15” 21# 0.19” 0.12”
2. The status of the equipment as indicated on the FSCP was as expected.
3. The status of the equipment was physically checked and was as expected.
4. The stair fan VFDs are controlled from static pressure sensors with high & low limits. See
below:
a. SPF-1 for the southeast stairwell A – VFD limits of 25 HZ & 33 HZ.
b. SPF-2 for the lower northwest stairwell B – VFD fixed speed of 12 HZ.
c. SPF-3 for the upper northwest stairwell B – VFD limits of 16 HZ & 22.5 HZ
5. The hoistway pressurization fans are set to a fixed speed as follows:
a. The east hoistway fan speed is set to 42 HZ.
b. The west hoistway fan speed is set to 45 HZ.
6. During test #1 the normal building power was disconnected. The emergency generator
started within 10 seconds. All SCS equipment were back up to design conditions with 45
seconds. We ran the test on generator for about 20 – 25 minutes before re-connecting the
normal building power.
David Coffey - RKMI
Vail Strata – Smoke Control System Test
February 6, 2017
Page 3
Bradshaw Building Solutions, Inc.
7. During the tests, a stairwell door at level 1 was opened on each stairwell & the stairwell
pressure dropped to about 0.03” to 0.05” at level 4. We then opened a 2nd stairwell door at
the top of the stairwell and the pressure dropped to about 0.01” at level 4.
8. During these tests, we forced the stairwell fans to their maximum programmed speed and
the differential pressure was 0.30”. This pressure would allow the door opening force to
stay at or below the maximum allowable door opening force of 30# (provided the stairwell
doors are adjusted to a maximum of 12# in normal mode).
IV. CONCLUSIONS AND RECOMMENDATIONS:
A. All equipment operated as required with accurate status feedback.
B. All differential pressure readings and door opening forces are within IBC/IFC specified ranges.
Should you have any questions, please do not hesitate to call me.
Sincerely,
Bradshaw Building Solutions, Inc.
Greg Bradshaw