SYSTEM SELLING BINDER
WHY NOT HEAT PUMPS
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COST TOO MUCH TO BUY
COST TOO MUCH TO OPERATE
COST TOO MUCH TO MAINTAIN
TOO COMPLICATED
TOO NOISY
SOFTWARE
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LEEDS
OPERATING COST
CLIMASIZE
SOUND ANALYZER
WSHP INSTALLED COST
Water Loop Heat Pump (May 2005)
ft2
Tonnage
WSHP
Electrical
Loop Piping
Condensate drains
Boiler
Cooling tower
Loop pumps
Controls
Other
Total
Cost per ton of Block
Cooling load
cost per ft2
(320 ft2)
320
100
Material
Burden
Total
130680
11880
11880
4680
31140
18360
6660
11880
22680
249840
51840
8640
17280
8640
6120
1800
1800
4320
10080
110520
182520
20520
29160
13320
37260
20160
8460
16200
32760
360360
3603.6
11.26
FOUR PIPE INSTALLED COST
4-Pipe Fan coil system-Reciprocating WCC (May 2005)
ft2
320
Tonnage
100
FCU
Electrical
Piping
Condensate drains
Boiler
Chiller
Cooling tower
pumps
Controls
Other
Total
Cost per ton of Block
Cooling load
cost per ft2
(320 ft2)
Material
Burden
Total
95040
11880
47520
4680
36000
62640
18360
20520
11880
30780
339300
60480
8640
69120
8640
6840
1440
1800
5220
4320
16740
183240
155520
20520
116640
13320
42840
64080
20160
25740
16200
47520
522540
5225.4
16.33
SUMMARY
Relative Installed costs Summary (May 2005)
SYSTEM TYPE
PTHP
WLHP
2-Pipe FCU Reciprocating WCC
2-Pipe FCU Centrifugal WCC
Unitary Rooftop VAV
4-Pipe FCU Reciprocating WCC
4-Pipe FCU Centrifugal WCC
GLHP
Relative Installed costs Cost/ton cost per ft2
0.9
3092.4
9.66
1
3603.6
11.26
1.06
3810.6
11.91
1.11
4001.4
12.50
1.11
3999.6
12.50
1.45
5225.4
16.33
1.50
5418
16.93
1.56
5607
17.52
Type of System
GLHP
4-Pipe FCU
Centrifugal
WCC
4-Pipe FCU
Reciprocating
WCC
Unitary
Rooftop VAV
2-Pipe FCU
Centrifugal
WCC
2-Pipe FCU
Reciprocating
WCC
WLHP
PTHP
May 2005 Relative installation costs
RELATIVE INSTALLED COST
May 2005 Relative installation costs
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
ASHRAE MEDIAN LIFE
WLHP
ROOFTOP
PTAC
MARRIOTT PTAC
CHILLERS
19
15
15
7
20
OPERATING COST
CONSUMPTION-KW/SQ FT/YR
2 PIPE FC
VAV ROOFTOP
VAV CENTRAL
PTAC
PTHP
WLHP
1.3
1.2
1.1
1.3
1.2
1.0
AIR COOLEDE CONDENSERS
27 % COIL EFFICIENCY LOSS
10.0 EER ERODED TO 7.3 IN 18 MONTHS
CONDENSER FAN MOTOR FAILURE 15% PER YEAR
SHORTENED COMPRESSOR LIFE
MAINTENANCE COST
2 PIPE FC
VAV ROOFTOP
VAV CENTRAL
PTAC
PTHP
WLHP
1.4
1.1
1.2
0.8
0.85
1.0
QUICK RULES OF THUMB
1.
2.
3.
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5.
6.
AVERAGE SQ FT/TON
AVERAGE CFM/SQ FT
AVERAGE LIGHTING LOAD
AVERAGE INSTALLED COST
TENNANT FIT COST
MAINTENANCE COST
300
1
2-3 W/FT
$5-8/FT
$2/FT
WSHP $.10/FT/YR
GEO
.07
VAV
.135
AIR/AIR
.14
7.
8.
HAVAC USES 45-55% OF ENERGY
OF THIS AMOUNT
COOLINGTOWER
BOILER
SYSTEM PUMP
HEAT PUMPS
6%
23
24
48
QUICK SELECTION METHODS
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BUILDING SIZE
USE 300 PER TON
USE 2.5 GPM PER TON
PUMP SELECTION
TOWER SELECTION
BOILER SELECTION
VENTILATION PER LOCAL CODE
100,000 SQ FT
100,000/300=333 TONS
333 x 2.5=832 GPM
USE 75 FT OF HEAD
BHP=956 X 8.3 X 75/33000 X .75 EFF=24 HP
USE WB PER ASHRAE LOCATION
USE 90-101 DEGREES
USE 956 GPM
USE 50% DIVERSITY
BTU=956 X 500 X3.5 DEG=1673,000
USE 1 CFM PER SQ FT
IF RATE =15%=15000 CFM
SOUND
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UNITS CHANGES
COMPRESSOR ISOLATION
FAN ISOLATION
CHASSIS ISOLATION
MUFFLERS
ROTARY AND SCROLL COMPRESSORS
410 A
SOUND
• NEW CERTIFIED SOUND LAB
• CERTIFIED SOUND POWER DATA
FACTORY VISITS
NATIONAL
REFERENCE JOB LIST
BULETINS
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TECHNICAL
COMPETITIVE
MARKETING
OTHERS