Solar Hot Water Pumps

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King Abdullah University of Science and Technology Rabigh, Saudi Arabia

Bulletin UN0000 0006 IFC-04-04-2008 07.12001.00

A.

Test and inspect potable-water storage tanks according to the following tests and inspections and prepare test reports: 1. Pressure Testing for ASME-Code, Potable-Water Storage Tanks: Hydrostatically test to ensure structural integrity and freedom from leaks. Fill tanks with water, vent air, pressurize to 1-1/2 times tank pressure rating, disconnect test equipment, hold pressure for 30 minutes with no drop in pressure, and check for leaks. Replace tanks that fail test with new tanks, and repeat until test is satisfactory. Pressure Testing for Non-ASME-Code, Pressure, Potable-Water Storage Tanks: Hydrostatically test to ensure structural integrity and freedom from leaks at pressure of 345 kPa above system operating pressure, but not less than 1035 kPa. Fill tanks with water, vent air, pressurize tanks, disconnect test equipment, hold pressure for two hours with no drop in pressure, and check for leaks. Repair or replace tanks that fail test with new tanks and repeat until test is satisfactory. Nonpressure Testing for Potable-Water Storage Tanks: Fill tanks to water operating level to ensure structural integrity and freedom from leaks. Hold water level for two hours with no drop in water level. Repair or replace tanks that fail test with new tanks, and repeat until test is satisfactory.

2.

3.

PART 3 - EXECUTION 3.1 EXAMINATION A. B. 3.2 Examine roughing-in for plumbing piping to verify actual locations of drainage and vent piping connections before sewage pump installation. Examine roughing-in of domestic-water-piping system to verify actual locations of connections before pump installation.

CONCRETE A. Install concrete bases of dimensions indicated for pumps and controllers. Division 22 Section "Common Work Results for Plumbing." 1. 2. 3. 4. B. Refer to

Install dowel rods to connect concrete base to concrete floor. Unless otherwise indicated, install dowel rods on 450-mm centers around full perimeter of base. For supported equipment, install epoxy-coated anchor bolts that extend through concrete base and anchor into structural concrete floor. Place and secure anchorage devices. Use setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded. Install anchor bolts to elevations required for proper attachment to supported equipment.

Cast-in-place concrete materials and placement requirements are specified in Division 03.

3.3

INSTALLATION A. B. C. Excavating, trenching, and backfilling are specified in Division 31 Section "Earth Moving." Install sump, waste, and sewage pumps according to applicable requirements in HI 1.4. Install pumps and arrange to provide access for maintenance including removal of motors, impellers, couplings, and accessories.

PLUMBING EQUIPMENT

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King Abdullah University of Science and Technology Rabigh, Saudi Arabia

Bulletin UN0000 0006 IFC-04-04-2008 07.12001.00

D. E.

Suspend wet-pit-mounted, vertical waste, sump, and sewage pumps from basin and pit covers. Make direct connections to sanitary drainage piping. Set submersible waste, sump, and sewage pumps on basin and pit floors. Make direct connections to sanitary drainage piping. 1. Anchor guide-rail supports to basin and pit bottoms and sidewalls or covers. Install pumps so pump and discharge pipe disconnecting flanges make positive seals when pumps are lowered into place.

F.

Install sump and sewage pump basins and connect to drainage and vent piping. Brace interior of basins according to manufacturer's written instructions to prevent distortion or collapse during concrete placement. Set basin cover and fasten to basin top flange. Install cover so top surface is flush with finished floor. Construct sump and sewage pump pits and connect to drainage and vent piping. Set pit curb frame recessed in and anchored to concrete. Fasten pit cover to pit curb flange. Install cover so top surface is flush with finished floor. Install packaged, submersible sump and sewage pump units and make direct connections to drainage and vent piping. Install packaged, wastewater pump unit basins on floor or concrete base unless recessed installation is indicated. Make direct connections to drainage and vent piping. Install pumps with access for periodic maintenance including removal of motors, impellers, couplings, and accessories. Independently support pumps and piping so weight of piping is not supported by pumps and weight of pumps is not supported by piping. Install centrifugal pumps with motor and pump shafts horizontal unless otherwise approved or specifically designed for vertical shaft mounting. Install continuous-thread hanger rods and spring hangers with vertical-limit stop of sufficient size to support pump weight. Vibration isolation devices are specified in Division 23 Section "Vibration and Seismic Controls for HVAC Piping and Equipment." Fabricate brackets or supports as required. Hanger and support materials are specified in Division 22 Section "Hangers and Supports for Plumbing Piping and Equipment." Suspend vertically mounted, in-line centrifugal pumps independent of piping. Install pumps with motor and pump shafts vertical. Use continuous-thread hanger rods and spring hangers with vertical-limit stop of sufficient size to support pump weight. Vibration isolation devices are specified in Division 23 Section "Vibration and Seismic Controls for HVAC Piping and Equipment." Hanger and support materials are specified in Division 22 Section "Hangers and Supports for Plumbing Piping and Equipment." Install vertical in-line pumps on concrete bases. Install pumps with motor and pump shafts vertical. Install flexible pump connectors for pumps where indicated on drawings. Refer to Division 22 Section “Plumbing Piping” and Division 23 Section “Vibration and Seismic Controls for HVAC Piping and Equipment”. Connections for potable water systems shall be approved for use in potable systems. Braided pump connectors shall be installed parallel to the pump shaft.

G.

H. I. J. K. L. M.

N.

O. P.

3.4

WASTE SYSTEM PUMP CONNECTIONS

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King Abdullah University of Science and Technology Rabigh, Saudi Arabia

Bulletin UN0000 0006 IFC-04-04-2008 07.12001.00

A.

Piping installation requirements are specified in Division 22 Section "Sanitary Waste and Vent Piping." Drawings indicate general arrangement of piping, fittings, and specialties. Install piping adjacent to sewage pumps to allow service and maintenance. Connect drainage and vent piping to pumps. Install discharge piping equal to or greater than size of pump discharge piping. Install vent piping equal to or greater than size of pump basin vent connection. 1. 2. Install flexible connectors adjacent to pumps in discharge piping. Install check and shutoff valves on discharge piping from each pump. Install unions on pumps having threaded pipe connections. Install valves same size as connected piping. Refer to Division 22 Section "General-Duty Valves for Plumbing Piping" for general-duty valves for sanitary waste piping.

B. C.

D. E. 3.5

Ground equipment according to Division 26 Section "Grounding and Bonding for Electrical Systems." Connect wiring according to Division 26 Section "Low-Voltage Electrical Power Conductors and Cables."

WASTE SYSTEM PUMPS STARTUP SERVICE A. Engage a factory-authorized service representative to perform startup service. 1. 2. 3. 4. 5. B. Complete installation and startup checks according to manufacturer's written instructions. Verify bearing lubrication. Disconnect couplings and check motors for proper direction of rotation. Verify that each pump is free to rotate by hand. If pump is bound or drags, do not operate until cause of trouble is determined and corrected. Verify that pump controls are correct for required application.

Start pumps without exceeding safe motor power: 1. 2. 3. Start motors. Open discharge valves slowly. Check general mechanical operation of pumps and motors.

C. D.

Test and adjust controls and safeties. Remove and replace damaged and malfunctioning components. 1. 2. Pump Controls: Set pump controls for automatic start, stop, and alarm operation as required for system application. Set field-adjustable switches and circuit-breaker trip ranges as indicated, or if not indicated, for normal operation.

E.

Occupancy Adjustments: When requested within 12 months of date of Substantial Completion, provide on-site assistance in adjusting system to suit actual occupied conditions. Provide up to two visits to Project outside normal occupancy hours for this purpose.

3.6

CONTROL INSTALLATION

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King Abdullah University of Science and Technology Rabigh, Saudi Arabia

Bulletin UN0000 0006 IFC-04-04-2008 07.12001.00

A. B. 3.7

Install immersion-type thermostats in hot-water return piping. water return pumps.

Install timers for hot

Install pump system controls and alarms and coordinate connections with work of other trades.

PRESSURIZED WATER SYSTEM PUMP CONNECTIONS A. B. C. Piping installation requirements are specified in other Division 22 Sections. Drawings indicate general arrangement of piping, fittings, and specialties. Install piping adjacent to pumps to allow service and maintenance. Connect domestic water piping to pumps. Install suction and discharge piping equal to or greater than size of pump nozzles. 1. Install flexible connectors adjacent to pumps in suction and discharge piping of the following pumps: a. b. c. d. 2. Separately coupled, in-line centrifugal pumps. Separately coupled, horizontally mounted, in-line centrifugal pumps. Close-coupled, horizontally mounted, in-line centrifugal pumps. Close-coupled, vertically mounted, in-line centrifugal pumps.

Install shutoff valve and strainer on suction side of pumps, and check valve and throttling valve on discharge side of pumps. Install valves same size as connected piping. Refer to Division 22 Section "General-Duty Valves for Plumbing Piping" for general-duty valves for domestic water piping and Division 22 Section "Plumbing Specialties" for strainers. Install pressure gages at suction and discharge of pumps. Install at integral pressure-gage tappings where provided or install pressure-gage connectors in suction and discharge piping around pumps. Refer to Division 22 Section "Plumbing Specialties " for pressure gages and gage connectors.

3.

D. E. F. 3.8

Ground equipment according to Division 26 Section "Grounding and Bonding for Electrical Systems." Connect wiring according to Division 26 Section "Low-Voltage Electrical Power Conductors and Cables." Connect thermostats and timers to pumps that they control.

PRESSURIZED WATER SYSTEM PUMP STARTUP SERVICE A. Engage a factory-authorized service representative to perform startup service. 1. 2. 3. 4. 5. Complete installation and startup checks according to manufacturer's written instructions. Check piping connections for tightness. Clean strainers on suction piping. Set thermostats and timers for automatic starting and stopping operation of pumps. Perform the following startup checks for each pump before starting: a. Verify bearing lubrication.

PLUMBING EQUIPMENT

22 30 00 - 23

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