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Spec StoppersSpec StoppersSweet SpotsSweet Spots
SpecialsSpecials
1
How To Make $6,000How To Make $6,000 MOREMORE on a 26 ton on a 26 ton
Data Aire Series DX UnitData Aire Series DX Unit
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● Increase Liebert Cost
● Reduce Data Aire Cost
● Liebert can still be basis of design
Specification Control = $$$
4
Spec Stopper
● Locking Disconnect Switch
– Standard option with Data Aire
– Liebert charges about $50 more than Data Aire
• Liebert standard is non-locking disconnect
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Justification
● Locking Disconnect Switch
– Safety
• Locking disconnect can be locked in the off position preventing accidental power up of the unit while it is being serviced
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Spec Stopper
● Dual Float Condensate Pump with Alarm
– Standard option with Data Aire
– Liebert charges about $60 more than Data Aire
• Liebert standard is single float no alarm
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Justification
● Dual Float Condensate Pump with Alarm
– Provides an alarm if condensate pump fails
– Alerts operator before water is under floor
8
Spec Stopper
● Fire Stat
– Standard with Data Aire
– Liebert charges about $75
• Liebert standard is no firestat
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Justification
● Fire Stat
– Responds to heat not smoke
– Required by some codes
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Spec Stopper
● Crankcase heaters
– Standard with Data Aire
– Liebert charges about $125
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Justification
● Crankcase heaters
– Prevents refrigerant from diluting compressor oil
– Extends compressor life
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Spec Stopper
● Steam Generator Humidifier
– Standard with Data Aire
– Liebert charges about $350
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Justification
● Steam Generator Humidifier– Capacity
• 36% higher capacity than infrared
– Efficiency• 22% more efficient than infrared
– Maintenance• Five minutes to replace canister
– Indoor Air Quality• Enclosed water reservoir heated to boiling
Spec Stopper
● Minimum 18 gauge panels
– Standard with Data Aire
– Liebert standard is 20 gauge
• 18 gauge not available
• Charge about $550 for 16 gauge panels
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Justification
● Minimum 18 gauge panels
– Superior sound attenuation
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Spec Stopper
● R-407c Refrigerant
– No added cost with Data Aire
– Liebert charges about $ 750
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Spec Stopper
● R-407c Refrigerant
– Environmentally friendly
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Liebert Data Aire
Non-Locking Disconnect $ 50 0
Dual Float Condensate Pump $ 60 0
Firestat $ 75 0
Crankcase Heaters $ 125 0
Steam Generator $ 350 0
18 Gauge Panels $ 550 0
R-407C $ 750 0
Total Increase in Cost $1,960 0
Specification Control = $$$
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Spec Stopper (Ceiling Units)
● Belt Drive Fans
– Standard with Data Aire
– Liebert cost about $575
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Justification
● Belt Drive Fans
– Generates higher external static pressure to overcome duct losses
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Spec Stopper (for Liebert)
● 4 Analog Inputs
– Standard with Liebert
– Data Aire *Cost about $250
* Example only; refer to PSG for current price
22
Reason to Omit
● 4 Analog Inputs– Seldom, if ever used
– Increases cost
– Only provide information, perform no useful function
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Spec Stopper (for Liebert)
● Motor overload alarm
– Liebert Cost about $100
– Data Aire *Cost about $300 to $400
* Example only; refer to PSG for current price
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Reason to Omit
● Motor overload alarm
– Redundant alarm• No air flow alarm does same thing• Internal overloads protect motor
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Spec Stopper (for Liebert)
● Infrared Humidifier
– Standard Liebert
– Data Aire *Cost about $1,400
* Example only; refer to PSG for current price
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Reason to Omit
● Infrared Humidifier– Efficiency
• 22% less efficient than steam generator
– Maintenance• Difficult and time consuming to clean
– Indoor Air Quality• Infrared has pan of standing water in air
stream in violation of ASHRAE
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Spec Stopper (for Liebert)
● Field split frame into 3 pieces
– Standard Liebert DS
– Data Aire *Cost about $1,300 / split
* Example only; refer to PSG for current price
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Reason to Omit
● Field split frame into 3 pieces
– Spec only when required
– Increases Data Aire cost needlessly
29
Spec Stopper (for Liebert)
● Self adjusting motor base
– Not available from Data Aire
● 5 year warranty on drive train
– Standard with Liebert
– Data Aire adds 8% to our price
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How to Handle
● Specify direct drive plug fans instead of warranty and self-adjusting motor base– Cost less– More efficient – No maintenance– No belt dust– Better airflow management
31
Spec Stopper (for Liebert)
● Semi-hermetic Compressors
– Standard with Liebert
– Data Aire *Cost about $2,500
* Example only; refer to PSG for current price
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How to Handle
● Specify Scroll Compressors In Lieu of Semi-hermetic Compressors
– Scrolls are 11.5% more efficient
– Scrolls are More reliable by 5 to 1
– Scrolls are Less expensive
Liebert Data Aire
4 Analog Inputs $ 0 $ 250
Motor Overload Alarm $ 100 $ 300
Infrared Humidifier $ 0 $1,400
Split Frame $ 0 $1,300
5 Year Drive Train Warranty $ 0 $1,600
Semi-Hermetic Compressors $ 0 $2,500
Total Increase in Cost $ 100 $7,350
Specification Control = $$$
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● Increased Liebert Cost by adding Data Aire Spec Stoppers $1,960
● Reduced Data Aire Cost byDeleting Liebert Spec Stoppers $7,250
Specification Control = $$$
$ 8,860 Price Difference$ 8,860 Price DifferenceOn Data Aire Series DXOn Data Aire Series DX
$ 5,835 Price Difference$ 5,835 Price DifferenceOn Chilled Water UnitOn Chilled Water Unit
Specification Control = $$$
35
We Are Just Getting Started!We Are Just Getting Started!
There Are More Ways to Lock There Are More Ways to Lock up a Job!up a Job!
Specification Control = $$$
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Spec Stopper (for Liebert)
● Digital Scroll Compressors
– Option with Liebert
– Data Aire cannot do
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How To Handle
● Digital Scroll Compressors
– Proprietary• Liebert is only CRAC manufacturer
allowed to buy digital scroll.
– Specify hot gas bypass instead• Functionally equivalent
– Not needed in a room with multiple 2 compressor units
39
Spec Stopper
● DAFC with factory mounted pumps
– Standard Data Aire product
– Liebert only offers free-standing pumps
40
Justification
● DAFC with factory mounted pumps
– Less field labor
– Single point power connection
– Takes up less space
41
Sweet Spot
● Floor mounted DX equipment
– Especially with 2 compressors
• Promote economy of DX systems
• Suggest use of dual cooling units
• Suggest use of a DX unit as a CW backup
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Sweet Spot
● 10 ton and 13 ton ceiling units
– Standard Data Aire product
– Liebert does not offer
43
Special
● Plug fans in floor units
– Data Aire *Cost about $1,000 to $1,500 net per fan
– Available On Data Aire DX and CW units
• Both on up flow and down flow
– Only On Liebert Chilled Water >= 30 tons
• Only on down flow
* Example only; contact Data Aire for current price
44
Justification
● Plug fans in floor units
– Up to 50% energy savings
– Less than one year payback on cost of fans
– No maintenance
– No belt dust under floor
– Excellent air flow management under floor
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Special
● Condensing unit > 10 tons
– Data Aire *Cost about $1,200 net
– Liebert will not do
* Example only; contact Data Aire for current price
46
Justification
● Condensing unit > 10 tons
– Fewer service techs in the data room
• Improved security
• Fewer disruptions
47
Special
● R-410a
– Data Aire *Cost, add 10% to price
– Liebert will only offer R-407c
* Example only; contact Data Aire for current price
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Justification
● R-410a
– All major manufacturers have made R-410a the standard
– R-407c charge cannot be topped off
• When a leak is repaired entire charge must be recovered and circuit charged with new refrigerant
– Refrigerant Cost
• R-407c costs 33% more than R-410a
• R-407c costs are rising and R-410a costs are falling
49
Special
● Dual power source with automatic power transfer switch
– Data Aire *Cost about $1,400 net
– Liebert does not like to do?
• Eliminates a single point of failure
* Example only; contact Data Aire for current price
Special
● Condenser fans with EC Motors
– Have not seen Liebert quote this
– Stulz will supply them
50
Justification
● Condenser fans with EC Motors
– Saves 40% of condenser fan energy
– Increased motor reliability
– Lower noise level at off peak loads
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Special
● Stainless steel DARC cabinet
– Data Aire *Cost about $600 net / fan section
– Will Liebert do?
– How much?
* Example only; contact Data Aire for current price
Data Aire Is Flexible!Data Aire Is Flexible!
Following Are Examples of Following Are Examples of Specials Reps Have RequestedSpecials Reps Have Requested
Specials
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● VFD mounted and wired
● High AIC disconnects
● TEFC Motors
● 2 condensate pumps with auto changeover
● Special location for electrical connections
● Special reheat kW
Electrical Specials
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● Isolation damper control relays
● Various relays for special purposes
● Red/Blue/Yellow alarm beacon
● Mount and wire controls by others (CW only)
● Custom control sequence of operation
Controls Specials
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● Alternate piping locations
● Copper fin coils
● Heresite coating on coils
● Stainless steel coil casing
● Special chilled water valves
● Special coil circuiting, row and fin count
● Dual chilled water or dual DX coils
Coil Specials
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● Reverse blowers
● Aluminum panels on ceiling units
● “Lead-lined” acoustical insulation
● 16 gauge panels
● Double wall construction
Cabinet Specials
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● Foil faced insulation
● Special length, width, and height
● Mirror image units
● Return air plenums on down flow units
● Plenums to hide duct on up flow units
Cabinet Specials
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● Special filters
● V-bank filter sections
● Floor stands enclosed with insulated panels
● Factory painted ceiling units
● Totally special unit e.g. Exxon-Mobil unit
Cabinet Specials