D 125A
8Pages

Catalog excerpts

• Qualify for Green Building Incentive Programs and Rebates • Achieve LEED Certification • Sustainable Water Conservation and Energy Efficiency • Reduced Environmental Impact • Lower Electric and Water Utility Costs • Long-Term Economic Returns May qualify for Economic Stimulus Rebate or local power company incentives Technologic® 502 Variable Speed Pump Controller INTEGRATED PUMP CONTROLLER AND ADJUSTABLE FREQUENCY DRIVE CONTROLS UP TO FOUR PUMPS IN PARALLEL ^Bell & Gossett a xylem brand

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• Assures Energy savings • Equipment Payback in 1-3 years • Easy to set up • Reduces equipment wear • Contributes to building LEED certification The real world benefits of Energy and Operating cost savings achieved by applying variable speed drives to hydronic pumping systems have been realized for many years. Such benefits include less wear and tear on pumps and control valves, leading to longer equipment lifetime; improved occupant comfort, stemming from equipment operation to meet building load; and cost savings from energy rebates and lower operating cost. The standard variable speed...

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System Parameters Consider the following example: Pump Series: 1510 Eff. Version 3.0.8 100 Constant Speed Operating Cost Variable Speed Operating Cost Payback Method First Year Cost Savings = $4,851-33,577 $ 1,274 Annual Depreciation Difference $ 286 Cost savings year after year. Payback in less than three years. True Variable Speed Payback Initial Cost of Variable Speed System Calculations based on: Annual Discount Rate 8%, Customer Tax Rate 31, Straight Line Depreciation over 7 years, Estimated Energy Cost Excalation Rate 5%

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Diagnostic Display Pump status and alarms End of Curve Protection To Protect pumps from operating outside of published/efficient range Motor Overload Protection T urns motors off prior to point of damaging electrical conditions Communication Hardwire or Serial Communication to BAS Manual and Automatic Alternation To provide even pump wear - <]□£>□ . V QQBQ NEMA 1 Enclosure Optional NEMA12 or NEMA 3R also available Duty/Standby Application Build in redundancy for critical installations Local-Off-Remote Control Allows for local control or operation via building operation interface Ensures...

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No Flow Shut Down For use with hydropneumatic tank to protect the system and pumps against thermal build-up in pressure boosting application Flow Sensor One analog input from a flow sensor to provide flow readout and end of curve protection Low Suction Pressure Cut-Out Protects the pumps against operating with insufficient suction pressure via low suction switch digital input or suction sensor analog input Auto Start of Lag Pump Upon lead pump failure for multi-pump systems High System Pressure Cut-Out To protect the piping system against high pressure conditions Fused Door Interlocked...

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Installation Hardwire or Serial Communication to the Building Automation System Ease of Installation The Technologic 502 Pump Con-troller and up to three variable speed drives are available on a common backplate with single point power connection. It is ideal for: Digital Input(s) • retrofits, utilizing existing pumps • new installations that do not require a skid mounted unit Analog Input(s) for Zone Sensors, Flowmeter & Suction Sensor • conversion of constant speed units to variable speed Technologic 502 controller and drives are also available in components for situations where a common...

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Automatic Bypass (Optional) TYPE A-1 BYPASS One pump and one Technologic 502 with Type A-1 Bypass DRIVE OUTPUT POWER VARIABLE SPEED PUMP BYPASS OUTPUT POWER SENSOR TRANSMITTER(S) MASTER DRIVE Sequence of operation: In the “AUTOMATIC” mode, the pump shall operate through the AFD. In the event of a system differential pressure failure due to an AFD fault, the pump controller shall automatically initiate a timed sequence of events to start the pump across the line. The pump shall run at constant speed with motor overload and ground fault connection. TYPE B-3 BYPASS Two pumps and a Technologic...

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Pump Logic Controller The Technologic 502 pump logic controller assembly shall be listed by and bear the label of Underwriter's Laboratory, Inc. (UL) and Canadian Underwriter’s Laboratory (CUL). The controller shall be specifically designed for variable speed pumping applications. The controller shall function to a proven program that safeguards against damaging hydraulic conditions including: a. Pump flow surges b. Hunting c. End of curve (flow sensor required) d. System over pressure The pump logic controller shall be capable of receiving up to four analog inputs from zone sensor /...

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