Supply Temp Staff Business Plan by plf20903


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									        coMPleTed ProjecTs                                                                                                                                  Tech Talk

                                                                  PuGeT sound enerGy TenanT iMProVeMenT                                     what is the optimum supply air temperature for the hVac cooling
                                                                   •	100,000	ft2	Tenant	Improvement	of	floors	8-12	in	the		                 systems we design and install in our commercial, retail and
                                                                                                                                            institutional buildings?
                                                                     PSE	building
                                                                   •		Bellevue,	WA
                                                                  HVAC Systems:                                                                                                                                                                So what is the answer, what is the optimum
                                                                                                                                            PART TWO:                                        The	air	displacement	design	concept	re-
                                                                   •		Medium	temperature	variable	air	volume	(VAV)	systems	utilizing					   Continued from Summer/Fall 2006 Issue            quires	a	supply	air	temperature	between	60º	      supply air temperature?
                                                                     two	rooftop	units	                                                     	                                                and	65º	F	to	meet	the	optimum	supply	air	
                                                                   •		Series	Type	VAV	terminal	boxes	with	silent	mercury	contactors                                                                                                            The	answer	depends	on	the	application.	For	
                                                                                                                                            Are there systems that use other than the        temperature.	This	allows	for	superior	envi-       all	but	air	displacement	systems	or	other		
                                                                   •		Terminal	boxes	use	electric	heat	at	all	perimeters                    proposed lower supply air temperatures?	         ronmental	comfort	for	the	occupants.              special	design	considerations,	it	seems	the	
                                                                   •		Communicating	electronic	direct	digital	control	system	               Yes,	contrary	to	the	lower	supply	air	tem-                                                         science	and	engineering	shows	we	should	be	
                                                                   •		Raised	curb	sound	attenuating	system	at	rooftop	units	                perature	design	is	the	system	concept	that	     Why use a supply air temperature differ-           considering	using	45º	to	50º	F	supply	air	
                                                                                                                                            deals	with	the	emerging	design	technology	      ent from the historic 55º F and the lower          system	not	the	traditional	55º	F.
                                                                   •		Water	cooled	Liebert	Units	were	used	to	cool	IT	room                                                                  supply air system? What are the reasons
                                                                                                                                            of	the	air displacement system	(also	known	as	
                                                                   	 	                                                                      the	under	floor	system).                        and advantages?	                                   There	are	some	other	obvious	engineering		
                                                                                                                                                                                            	Some	possible	advantages	for	using	a	higher	      issues	that	need	addressing	such	as:
                                                                                                                                            The	design	parameters	for	the	Under	Floor	
                                                                                                                                                                                            cooling	Supply	Air	Temperature	(SAT):              •	What	equipment	can	produce	the	lower	
                                                                                                                                            Air	Delivery	system	(UFAD)	are	diametri-
                                                                  souTh 405 Place                                                           cally	opposed	to	the	logic	for	systems	using	   •	Lower	compressor	energy	costs	due	to	              supply	air	temperatures?		Most	packaged	
                                                                                                                                            discharge	air	temperatures	below	55ºF.	The	       higher	SAT	with	more	economizer	hours	             equipment	is	not	capable	of	producing	
                                                                   •	53,553	ft2	3-story	building.
                                                                                                                                            air	displacement	system	relies	on	provid-         for	cooling	equaling	lower	energy	cost.            lower	than	55º	F	(	or	even	higher).
                                                                   •	17,274	ft2	“open”	parking	garage
                                                                                                                                            ing	cooling	from	below	with	warmer	air	as	      •	With	a	UFAD	system	larger	main	ducts	            •		Do	we	supply	the	lower	temperature	
                                                                   •	Renton,	WA                                                             opposed	to	a	more	conventional	system	that	       are	required	for	the	larger	CFM	quantity				       directly	to	the	occupied	space	or	mix	the	
                                                                  HVAC Systems:                                                             provides	air	from	overhead.	                      but	there	is	the	opportunity	to	reduce	or	         cooler	air	via	series	fan	powered	terminals?
                                                                                                                                                                                              eliminate	branch	and	distribution	ducts	         •	Do	we	use	blow-through	or	draw-through	
                                                                   •	Medium	temperature	variable	air	volume	(VAV)	system		      						      The	UFAD	system	treats	the	conditioned	
                                                                                                                                                                                              since	the	air	distribution	is	via	the	under	       fan	designs?
                                                                     utilizing	one	(1)	Mammoth	78	series	Ultraline	rooftop	unit             space	(or	zone)	for	6+	feet	above	the	finished	
                                                                                                                                                                                              floor	plenums.	This	may	result	in	lower	
                                                                   •	Series	type	VAV	boxes	with	silent	mercury	contactors                   floor.	The	reasoning	for	the	higher	supply	
                                                                                                                                                                                              first	costs.	
                                                                                                                                            temperature	is	the	need	to	maintain	the	                                                           The final answer is:
                                                                   •	Communicating	electronic	DDC	system	with	modem	remote		                                                                •	Opportunity	for	lower	floor-to-floor	heights.
                                                                                                                                            occupied	space	comfort	when	supply	is	from	                                                        As	engineering	and	design	practitioners,	we	
                                                                     access                                                                                                                 •	Improve	indoor	air	quality	by	supplying	
                                                                                                                                            below.	This	will	allow	for	thermal	comfort	                                                        need	to	do	a	proper	job	of	determining	the	
                                                                  Energy Saving Strategies:                                                 as	well	as	reduced	sensation	of	drafts.	What	     air	directly	to	the	occupied	zone	and	not	       client’s	needs,	evaluating	the	design	options	
                                                                   •	Variable	speed	(inverter)	driven	supply	and	relief	fans	for		          is	the	optimum	supply	air	temperature	for	        treating	or	providing	comfort	to	“unoc-          and	making	a	solid	recommendation	based	
                                                                     Mammoth	Ultraline	unit	result	in	both	energy	savings	and	very					     this	system	concept?                              cupied”	space.	                                  on	engineering	and	science	–	not	conven-
                                                                     accurate	control	of	duct	building	static	pressure                      Obviously	a	lower	supply	air	temperature	                                                          tion,	convenience	or	tradition.
                                                                   •	Direct	digital	controls	provide	accurate	temperature	control,	         design	would	accomplish	the	advantages	
                                                                     minimizing	drift	and	overshoot:	Heating	signals	are	‘pulsed’	to	       (noted	in	our	last	newsletter)	for	the	lower	
                                                                     exactly	match	the	load                                                 supply	air	system.	However,	the	environ-
                                                                                                                                            mental	comfort	would	be	unacceptable.	

                                                                                                                                                         did you know
                                                                   •		43,917	ft2		2-story	facility
                                                                   •	2	story	tenant	improvement
                                                                   •		Bothell,	WA
                                                                                                                                                 naioP community enhancement Project
                                                                                                                                                PSF	contributes	to	Giddens	School	Project
                                                                  HVAC Systems:
                                                                   •		(2)	Trane	27.5	ton	units	with	variable	frequency	drive	serving	an	
                                                                      engineering	work	area
                                                                                                                                                                                               From: Leah Lee                                                                             Giddens
                                                                   •	(3)	10	ton	Liebert	units	serving	a	DVT	server	room	and	data	                                                              Sent: Friday, October 27, 2006 8:30 AM
                                                                      center                                                                                                                   Subject: RE: Donation                                                                      School
                                                                   •	(2)	Rooftop	exhaust	fans	for	equipment	room	and	soldering		                                                               Hi Marsha,

                                                                      exhaust                                                                                                                  We are eternally grateful for PSF
                                                                                                                                                                                               Mechanical’s donation.
                                                                   •	Communication	electronic	direct	digital	control	system                                                                    Thanks again!

                                                                                                                                                                                               Leah Lee
                                                                                                                                                                                               Director of Development
                                                                                                                                                                                               Giddens School
                                                                                                                                                                                               620 - 20th Avenue South
                                                                                                                                                                                               Seattle, WA 98144

PSF	Mechanical,	Inc.		9322	14th	Avenue	South,	Seattle,	WA	98108                                                                                                                                                                               Phone:	206.764.9663				Fax:	206.762.8381
Psf PeoPle                                                                                                Winter ‘06 /
                                                                                                          Spring ‘07
                                                                                                          Volume 18
      Meet the People That Make Things happen
      Scott Wallace, Senior Project Man-                 Traci Staffen, Office Manager, has	been	
      ager,	has	over	32	years	of	HVAC	project	           in	the	industry	for	two	years.	Her	energetic	
      manangement,	field	coordination	and	               enthusiasm	keeps	our	various	departments	
      system	design	experience.	He	also	has	             organized	and	flowing.	She	maintains	
                                                                                                                                                                                                                                                         Published by PSF
      experience	coordinating	HVAC,	plumbing,	           our	“PSF-U”	schedule	so	our	entire	team	
      piping	and	fire	protection.	Scott	brings	reli-     continues	to	learn	about	new	products	and	
      ability,	excellent	communication	skills	and	       applications	within	the	industry.
      a	willing,	collabrative	attitude	to	all	of	his	     	
                                                         Ray Burdine, Purchasing Manager,	has	
      Craig Randall, Design Engineer,	has	been	
      working	in	the	HVAC	industry	for	over	20	
                                                         worked	in	the	industry	for	over	18	years	and	
                                                         has	been	with	PSF	since	2005.	Ray	ensures	
                                                                                                                a new era for Psf                                                                                          uPcoMinG ProjecTs
      years.	With	several	years	of	designing,	draft-     our	projects	get	the	equipment	and	materi-
                                                                                                                Yes,	it’s	true!		We’re	growing	…	adding	staff	                                                     Nordstrom Projects
      ing	and	estimating	experience,	Craig	brings	       als	delivered	on	time!	He	enjoys	playing	golf	
                                                                                                                …adding	new	office	space	…	expanding	
      a	comprehensive	approach	to	Design/Build	          in	his	spare	time	as	well	as	traveling	around	                                                                                                            • Ross Park
                                                                                                                our	capabilities	…	we	have	even	rolled	out	a	
      engineering.                                       the	country	in	his	RV.                                                                                                                                      Pittsburgh,	PA	(opens	Fall	08)
                                                                                                                new	logo.	But,	one	thing	will	never	change	
                                                                                                                –	our	way	of	doing	business.	Keeping	our	                                                          • Thousand Oaks
                                                                                                                word	will	always	be	the	most	important	                                                              Thousand	Oaks,	CA	(opens	Fall	08)
                                                                                                                thing	we	do.	We	will	always	strive	to	be	                                                          • Cedar Rapids
      Mark Gifford, Inside Fabrication Sales,	                                                                  “Trusted to be the Better Choice”!                                                                   Cedar	Rapids,	IA	(opens	Winter	07)
      has	been	working	in	the	customer	service	                                                                                                                                                                    • Southcenter Rack
      industry	as	a	manager	and	salesman	for	over	                                                              You	may	have	already	seen	our	fresh	new	         30	years	have	completed	successful	projects	        Tukwila,	WA	(opens	Fall	07)
      15	years	and	brings	his	energetic	personality	                                                            look	cruising	through	the	city	on	our	com-       nationwide	and	in	the	Pacific	Northwest.	
      and	experience	to	his	position	at	PSF.                                                                    pany	vehicles,	colorful	banners	posted	at	our	   We	also	offer	Design/Assist	and	Value	En-
                                                                                                                job	sites,	brightly	lit	signage	on	our	corpo-    gineering	when	needed	as	well	as	Plan	and	        Local Projects
                                                                          MailbaG                               rate	offices	and	a	newly	designed	website	to	    Spec	work.                                        •	St.	Thomas	School
                                                                                                                keep	you	up-to-date	on	our	projects	(past,	                                                        •	McMurray	Cardiac	Rehab
                                                          Like to get on our mailing list?                      present	and	future).                             PSF	is	a	full-service	mechanical	contract-        •	Microsoft	Global	Security	Center
                                                                                                                                                                 ing	company	offering	design,	fabrication,	
                                                          Send	your	name	and	address	or		                       Our	entire	team	is	excited	about	beginning	      installation	and	commissioning	of	HVAC	           •	Bellevue	First	Presbyterian	Church	
      Tim Carter, Assistant Project Manager,	             email	address	to:
                                                                                                                another	era	in	PSF’s	long	history	and	we	are	    systems.	Our	service	department	is	on-call	         Education	Wing
      has	over	7	years	experience	in	the	HVAC	                                       equally	excited	about	being	able	to	provide	     24/7	to	ensure	your	building	systems	are	         •	Boeing,	Building	9-101
      industry.	He	has	helped	manage	various	                                                                   our	customers	with	the	things	we	do	best.	       operating	efficiently.                            •	Highline	Medical	Center
      projects,	including	high	rise	office	buildings,	    Or,	simply	write	to:
                                                                                                                We	do	what	we	say!                                                                                 •	NW	Hospital	Medical	Center		
      tenant	improvements	and	medical/office	             PSF Mechanical, Inc.                                                                                   Custom	sheet	metal	fabrication	is	welcomed	
                                                          9322	14th	Avenue	South                                                                                                                                     Pharmacy	remodel
      buildings.                                                                                                We	have	long	been	known	for	our	Design/          by	our	skilled	artisans	–	you	dream	it,	we	
                                                          Seattle,	WA		98108
                                                                                                                Build	HVAC	capabilities	and	for	the	past	        can	build	it.	
                                                          For	more	information	or	key	contacts	list,	
                                                          visit	our	web	site	at:		                                                                                    Our	dedicated	teams,	from	the	office	
                                                                                                                                             to	the	field,	are	always	“at	the	ready”	                inside This issue
                                                                                                                                                                      and	geared	to	make	each	project	a	suc-
                                                                                                                                                                      cess.	It’s	what	we	do!                      Completed	Projects		............................2
                                                                                                                                                                                                                  Tech	Talk .............................................3
                                                                                                                                                                                                                  Did	You	Know	....................................3
                                                                                                                                                                                                                  PSF	People	..........................................4
          9322 14th Avenue South
          Seattle, WA 98108-5102

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