CS_Hospitality_Starwood Hotels

CS_Hospitality_Starwood Hotels
CASE STUDY
INDUSTRY: HOSPITALITY
CUSTOMER:
LOCATION:
SCOPE OF
AGREEMENT:
Starwood Hotels and Resorts Worldwide
Stamford, Connecticut, USA
Starwood Hotels and Resorts Worldwide has selected The Brain® Digital ReCirculating Valve from Armstrong International as its corporate standard domestic
hot water temperature control device for all Starwood hotels and resorts. The
Brain® is specifically designed to be the primary water temperature controller in
a continuously pumped recirculating hot water system. The Brain® will control
within a +/-2°F (1°C) accuracy and provide flow capacities from 0-188 gpm (0-712
lpm). The Starwood Hotel and Resorts Worldwide Design Standard pertains to
New Construction and Engineered Renovation projects for the Starwood hotels
and resorts.
STARWOOD DESIGN
STANDARD:
Digital Re-Circulating Valve (DRV): Provide DRVs for the following hot water
system applications; systems with a maximum simultaneous demand (MSD) less
than or equal to 3.8l/sec (60 gpm), provide one DRV40R-BS-DS, systems up to
7.2 l/sec (115 gpm), provide either two DRV40R-BS-DS in parallel or one DRV80RBS-DS, systems up to 11 l/sec (175 gpm), provide one DRV40R-BS-DS and one
DRV80R-BS-DS in parallel, and systems up to 14.5 l/sec (230 gpm), provide two
DRV80R-BS-DS in parallel.
Installation: Install valve in compliance with manufacturer’s published instructions
at www.armstronginternational.com/brain.
Valves shall be installed exactly as indicated in the following installation
schematics:
• Plan A on page 4 indicates a single valve installation schematic.
• Plan B on page 4 indicates a two valve installation schematic.
Designer and installer may also consider a fully pre-piped “Digital Mixing Center”
(DMC).
Armstrong International
INTELLIGENT SOLUTIONS IN STEAM, AIR AND HOT WATER
North America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rim
armstronginternational.com
CS_Hospitality_Starwood Hotels.indd 06/15
© Armstrong International, Inc.
THE BRAIN©:
DRV40
DRV80
• +/- 2°F water temperature control at points of use 25’ downstream during
demand
• +/- 2°F water temperature control at the DRV during zeo system dmand
“idling” periods
• 2°F minimum valve inlet to outlet temperature requirement (system
•
•
•
•
•
•
recirculation temperature loss)
Automatic shutoff of hot water flow in the event of a power failure
Programmable set point range of 81-158°F (27-70°C)
Programmable thermal disinfection mode
Programmable 1st level hi/lo temp alarm display
Programmable temperature error level for safety shutdown
ASSE
For Drawings, Piping Schematics, and Revit Compatible Files, please visit:
armstronginternational.com/brain
Recirculation Systems - Digital (gpm)
Pressure Drop (psi)
5
10
Minimum System DrawOff
Maximum Flow @7.5 ft/sec.
CV
DRV40/R-BS-DS
48
70
0
41
22
DMC40-BS-DS
48
70
0
41
22
DMC40-40-BS-DS
96
140
0
115
44
DRV50/R-BS-DS
94
133
0
73
42
DMC50-BS-DS
94
133
0
73
42
DRV80/R-BS-DS
94
133
0
165
42
DMC80-BS-DS
94
133
0
165
42
DMC80-80-BS-DS
188
266
0
294
84
DMC80-80-80-BSDS
282
399
0
459
126
Model
Armstrong International
INTELLIGENT SOLUTIONS IN STEAM, AIR AND HOT WATER
North America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rim
armstronginternational.com
CS_Hospitality_Starwood Hotels.indd 05/12
© Armstrong International, Inc.
Starwood Hotels and Resorts
Worldwide
Stamford, CT
John Lapins
SVP Design and Technical Services
Starwood Hotels and Resorts Worldwide
Office: (203) 964-4499
john.lapins@starwoodhotels.com
June 2, 2015
Mr. Ryan Bloss
Director of Global Hospitality
Armstrong International
816 Maple Street
Three Rivers, MI 49093
Ryan,
®
Starwood Hotels and Resorts Worldwide has selected The Brain Digital Re-Circulating Valve
from Armstrong International, as its corporate standard domestic hot water temperature control
®
device for all brands of Starwood Hotels and Resorts. We have selected the Brain since it is a
fully digital recirculation valve (DRV) designed specifically to be the primary water temperature
controller in a continuously pumped recirculating hot water system.
The sizing criteria as stated in Starwood Hotels and Resorts Design Standards for all brands
requires Digital Re-Circulating Valve (DRV); Provide DRVs for the following hot water system
applications; systems with a maximum simultaneous demand (MSD) less than or equal to
3.8l/sec (60 gpm), provide one DRV40R-BS-DS, systems up to 7.2 l/sec (115 gpm), provide
either two DRV40R-BS-DS in parallel or one DRV80R-BS-DS, systems up to 11 l/sec (175 gpm),
provide one DRV40R-BS-DS and one DRV80R-BS-DS in parallel, and systems up to 14.5 l/sec
(230 gpm), provide two DRV80R-BS-DS in parallel. Designer and installer may also consider a
fully pre-piped “Digital Mixing Center” (DMC).
Please feel free to advise all parties involved in hot water system design and installation for all
Starwood projects that Starwood Hotels and Resorts Design Standard is now in effect and should
be strictly adhered to.
Starwood Hotels and Resorts Worldwide Contacts:
John Lapins
SVP Design and Technical Services
Office: (203) 964-4499
john.lapins@starwoodhotels.com
Sincerely,
John Lapins
SVP Design and Technical Services
Ryan Bloss
Director of Global Hospitality
Office: (772) 538-7017
rbloss@armstrongitnernational.com
Plan A - One Valve Installation Schematic
BYPASS
N.C.
N.O.
N.O.
N.O.
N.O.
BrainScan
Remote Access
Interface
HWR FROM BUILDING
Plan B - Two Valve Installation Schematic
N.O.
N.O.
N.O.
N.O.
N.O.
N.O.
N.O.
BrainScan
Remote Access
Interface
N.O.
N.O.
HWR FROM BUILDING
-LEGENDRECIRCULATION PUMP
THERMOMETER
CHECK VALVE
ISOLATION VALVE
STRAINER
BALANCE VALVE
NC-NORMALLY CLOSED
WAFER STYLE
SPRING CHECK VALVE
SWING CHECK VALVE**
NO-NORMALLY OPEN
** Oritented for piping schematic detail only.
Must be installed in horizontal plane.
Armstrong International
INTELLIGENT SOLUTIONS IN STEAM, AIR AND HOT WATER
North America • Latin America • India • Europe / Middle East / Africa • China • Pacific Rim
armstronginternational.com
CS_Hospitality_Starwood Hotels.indd 05/12
© Armstrong International, Inc.
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