Eagle Point National Cemetery Systems Manual.pdf
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This is a systems manual prepared by Northwest Engineering Service, Inc. for the Eagle Point National Cemetery in Oregon, documenting the operation and maintenance procedures for building systems installed during the replacement of administration and maintenance buildings and other site improvements completed in September 2015.
The manual covers multiple building systems including coiling doors, biological waste treatment, plumbing systems (trap primers, oil separator, air compressor, water heaters, eyewash), HVAC equipment (fans, energy recovery ventilator, air handling units/heat pumps), electrical systems (photovoltaic, manual transfer switch, occupancy sensors), electronic safety and security (fire detection/alarm, intrusion detection, CCTV), and utilities (backflow preventers, stormwater storage). For each system, the manual provides detailed product information, initial setpoints, sequences of operation, control drawings, preventive maintenance schedules, and sensor calibration requirements. Key equipment includes Earthlinked Technologies air handlers, DSC security system components, Notifier fire alarm devices, and a Carbtrol washwater recycling system.
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SYSTEMS MANUAL
For
Veteran’s Administration:
Eagle Point National Cemetery
Replace Administration, Maintenance Buildings and Other Site Improvements
Eagle Point, Oregon
Job # 1374-0001
September, 2015
Prepared by:
Vince Sage, P.E.
Eagle Point National Cemetery – Systems Manual Table of Contents
1. Introduction
2. Openings
A. Coiling Doors
3. Equipment
A. Biological Waste Treatment System
4. Plumbing
A. Trap Primers
B. Oil Separator
C. Air Compressor
D. Electric Water Heaters
E. Eyewash
5. HVAC
A. Fans
B. Energy Recovery Ventilator
C. Air Handling Units/Heat Pumps
6. Electrical
A. Photovoltaic
B. Manual Transfer Switch
C. Occupancy Sensors
7. Electronic Safety and Security
A. Fire Detection and Alarm
B. Intrusion Detection
C. Closed Circuit Television System
8. Utilities
A. Backflow Preventers
B. Stormwater Storage Chambers
1. Introduction
This manual describes the proper operation and maintenance of building systems and equipment. Systems and equipment are ordered by specification section and include the following sections (only those applicable are included):
1. As-built sequences of operations
Narrative of how the system is to respond in every mode of operation (i.e. heating, cooling, startup, etc.)
2. As-built control drawings including single line diagrams
Diagrams of components and equipment that operate together as a system
3. Original setpoints
List of initial values for user adjustable setpoints (i.e. thermostat and timer settings)
4. Operating instructions for integrated building systems
Instructions for system operation including notes about interactions with other building systems or equipment
5. Recommended equipment maintenance schedules
A table summarizing maintenance requirements and schedule from the Operations and Maintenance (O&M) manual
6. Recommended schedule for calibrating sensors and actuators
When to recalibrate various sensors and actuators
2. Openings
A. Coiling Doors
1. Product Information
Tag Location Manufacturer Model
M113B, M114B Maintenance shop Overhead Door 625 series S101A, S101B, S101C, S101D, S101F S102A, S102B, S103A
Storage 101, 102, 103 Overhead Door 620 series
2. Preventative Maintenance Schedule
Overhead Doors are built for long-lasting service with low maintenance requirements. If service is required, contact an authorized service representative.
3. Equipment
A. Biological Waste Treatment System
1. Product Information
Tag Location Manufacturer Model
N/A Wash Bay Control M116 Carbtrol
Custom washwater recycle system with the following components:
Pressure Washer: Pressure Pro WM/EE 30156 Sump Pump: Barnes 2SVE-5241 Recirculatoin pump: Goulds NPE 1¼X1½-6 Chemical Metering Pump: Pulsafeeder Mec-O-Matic Dolphin Series Model 10 Ozonator: Delzone Eclipse
2. Sequences of Operation
WASHING
• The CARBTROL system provides recycled water for washing equipment on a continuous basis.
Wash hydrants are provided for equipment cleaning. Water can be supplied at low pressure of 30-40 psi or at a boosted pressure with the use of a pressure washer as desired.
• Compressed air pre-cleaning of heavily soiled equipment is recommended to control solids loading and to prevent the discharge of large size particles (greater than I inch) into the collection sump.
PRIMARY COLLECTION SUMP & PUMP
• The purpose of the primary collection sump is to collect wash water from the cleaning process and pump it to the hydroscreen for treatment. The primary collection sump is fitted with a submersible effluent pump. The pump is activated by a mechanical float switch, which starts and stops the pump based on the sump water level. When the pump is activated, wash water and solids are delivered to the hydroscreen for processing. Upon pump activation, a slipstream of the water is also directed back into the sump through an agitation nozzle to provide complete mixing of the sump contents.
• A treated water recycle stream (about 3 gpm) flows continuously into the primary sump from the treated water storage tank. This prevents stagnation of water in the sump.
• The primary sump pump is designed to pump solid materials up to I inch in size. Care should be taken to prevent solids materials larger than I inch from entering the sump as this can result in pump failure.
• To prevent an overflow condition inside the treatment building, the pump is also wired in series with a high-high level float switch located in the water storage tank. This float temporarily shuts down flow from the pump when excess water accumulates in the system. The condition self-corrects when sufficient treated water is discharged from the storage tank.
• The collection sump will be 36" diameter by 36" deep having a containment volume of 159 gallons. The sump will be fitted with a .5 HP pump and a Conroy pump level control. A fiberglass sump grate cover will be fitted to the sump for easy access. The sump pump will be fitted with a mixing jet to insure fluidization if the sump contents.
• The sewage ejector pump is a Barnes Model 2SVE-5241. The unit is of a vortex impeller design, will pass solids up to 2" diameter, operates at 1750 rpm and is serviced with 230V single phase power. This is an industrial grade pump which is designed to stand up to the toughest applications.
HYDROSCREEN
• The hydroscreen and trash cart are designed to remove and collect heavy solids (grass, sand, etc.) from the washwater. Water is pumped from the primary sump to the top of the hydroscreen where it is directed downward over the curved screen surface. Coarse solids are retained on the screen and slough downward until they discharge into the grass collection cart.
Debris & solids collected in the grass cart should be emptied periodically and composted. Water separated in the screening process flows through the screen and into the clarifier.
• Systems installed in cold weather climates may be fitted with a bypass to prevent screen icing in cold weather.
• The hydro screen and collection box will be constructed of 304 stainless steel and will include provision for wall mount at the wash pad.
CLARIFIER
• The treatment system clarifier is designed to remove free floating hydrocarbons, and finely dispersed solids under quiescent settling conditions. Screened wash water flows by gravity from the trash screen and enters the clarifier at its mid-section. Free hydrocarbons float to the surface and fine solids settle to the cone-bottom section of the clarifier tank.
• Periodically sludge must be manually removed from the clarifier through a discharge nozzle located at the bottom of the tank. The clarifier is also fitted with a skimming nozzle hose connection to provide for the periodic removal of scum and other floatables.
• The clarifier will be of a 500 gallon volume and constructed of UV protected and cross linked polyethylene.
• A sludge-dewatering drum is provided for draining and accumulating sludge and scum collected in the clarifier. The 30-gallon drum is fitted with a dewatering bag and drainage mechanism such that liquid sludge and scum can be periodically drained from the clarifier and dewatered for composting. The bag may be discarded and replaced or cleaned and reused.
• The sludge dewatering drum is constructed of UV protected and cross linked polyethylene.
BIOLOGICAL OXIDATION
• From the Clarifier the water flows by gravity to a biological oxidation reactor. The reactor is filled with a synthetic packing media which provides an expanded surface area for bio film growth. The reactor is aerated and automatically seeded with a concentrated biological medium which promotes the growth of oxidizing bacteria.
• As water enters the reactor it flows up flow through the bio medium where organic materials are trapped and subsequently oxidized and digested in the bio film.
• Over time the Bio film growth accumulates on the media and sloughs off into the cone bottom section of the reactor. The solids are then periodically purged from the reactor and directed back to the clarifier for recycle or disposal.
• The Digester tank is industrial grade crossed linked polyethylene. The digester has a volume of 1200 gallons and is filled with 194 sq meters of bio oxidation media. The unit is fitted with a stick aeration system delivering 3 SCFM of compressed air to facilitate oxygenation of the tank contents. The digesters cone bottom design allows drain off of accumulated bio mass for recycle or dewatering.
CHEMICAL METER PUMP & CHEMICAL MAKE UP CONTAINER
• The chemical metering pump is a Pulsafeeder Mec-0-Matic Dolphin Series Pump Model 10. It is of peristaltic design and is engineered for low volume pumping of chemical solutions. It is configured for a maximum feed rate of 1 gpd with a turn down ratio of 10/1. The unit operates on 120V single phase power.
• The 30 gallon chemical make-up container is industrial grade polyethylene and fitted with a polyethylene lid.
WATER STORAGE
• From the Biological reactor the water flows to a water storage tank which holds sufficient water inventory for the washing process. The tank is fitted with a series of float switches to maintain the proper water level and to prevent dry run of the pumps. Floats are provided to control the following functions:
1. Transfer pump shut down on low-low water level. (Shuts down main transfer pump and all related functions when a dangerously low water level is sensed in the storage tank.
Condition self corrects if fresh water supply is turned on, and the reason for system water loss remedied.)
2. Fresh water makeup on low water level. (Automatically adds fresh make up water to the system when the low-level float is actuated- water supply must be turned on for automatic actuation.)
3. Alarm and/or treated water discharge on high water level. (Lights an indicator alarm on high water level in the water storage tank. Concurrently automatically opens a waste solenoid valve and discharges treated water to waste/irrigation but only if manual treated water to waste valve is open. Condition self corrects only when the manual treated water to waste valve is in the open position. Otherwise water must be removed through a recycle water hose to correct the high level condition.)
4. Primary sump pump shut down on high-high water level. (Shuts down sump pump to prevent excessive water from entering the treatment system and flooding the treatment tanks. Condition self corrects when treated water to waste valve is in the open position or when water is removed from the system through a recycle hose.)
• The water storage tank holds 750 gallons and is constructed of UV protected and cross linked polyethylene.
WATER POLISHING SKID
• The water polishing skid is fitted with a recirculation pump, sand I activated carbon filter, the advanced oxidation treatment process and a system control panel. Individual components are discussed in detail below:
RECIRULATION PUMP
• The purpose of the recirculation pump is to transfer clarified water through the treatment units and to the wash pad for reuse. Water is pumped from the water storage tank by an open-end centrifugal pump that runs on a continuous basis and is activated by an on/off switch located on the control panel. The pump runs continuously unless there is a low-low level condition in the water storage tank.
• The pump is a 1.0 HP Gould Centrifugal Pump Model NPE 1 ¼ x1½-6. The unit is an end suction, close coupled, single stage centrifugal pump designed for industrial liquid transfer service. The pump’s liquid-end construction is of all AISI Type 316 stainless steel. It operates at 3600 rpm and is serviced with 230V single phase power.
SAND /ACTIVATED CARBON FILTRATION
• Water from the recirculation pump is directed through the Sand /Carbon filter to remove any residual solids. As the water passes through the filter, any remaining fine particulate matter is removed and retained on the filter media surface. Over time, this accumulation of particulate matter will cause a pressure build up to occur on the filter bed. Periodic back washing of the filter(s) is required to limit the pressure build-up.
• The Sand/Carbon filter is of fiberglass design as manufactured by Astral Filters. The unit is 30" in diameter and 37" deep. It is manufactured from polyester resin and fiberglass, and is completely corrosion-proof. The internal fittings (diffuser and lateral system) are manufactured from PVC and polypropylene. They are designed for a working pressure up to 50 psi and a maximum working temperature of 122° F. The unit is of a back washable design and contains a mixed media fill of 50% sand and 50% granular activated carbon.
WATER POLISHING TREATMENT
• The system uses a combination adsorption/advanced oxidation technology to remove any non-biodegradable residual organics from the recycle water and to sanitize the water for recycle.
Sufficient level of treatment is also provided to prevent the formation of odor-generating bacteria.
• Treatment of the wash water is accomplished in the system by means of a 3-6 gpm continuous recycle loop which is taken from the filter effluent and is recycled back into the water storage tank. The water treatment units are discussed in detail below:
ACTIVATED CARBON ADSORPTION
• Non biodegradable organics are removed from the water by processing through granular activated carbon. The activated carbon adsorbs and holds any organic materials including petroleum hydrocarbons, pesticides, and herbicides that are not broken down in the biological process. The organics adsorbed are then subjected to controlled oxidation that results in their eventual breakdown. The activated carbon capacity for the organics is approximately 20 to 30 percent by weight and sufficient activated carbon is provided for treatment under average conditions for a period of one year.
• Annual replacement of the activated carbon is recommended. More frequent replacement may be required under unusual circumstances such as significant spills or leaks of petroleum, pesticides or herbicides. The spent carbon can normally be composted along with the solids from the hydroscreen. Check local regulations for special conditions.
ADVANCED OXIDATION
• This process utilizes an ozone generator to produce highly reactive O3
OZONATION
molecules that are used to oxidize residual organics remaining in the wash water. The process results in the destruction of residual organic material without the generation of sludge or residue.
• Ozone is fed into the water through the use of a vacuum eductor also located in the chemical addition manifold. Ambient air is drawn through a Delzone Eclipse Model ozone generator where the ozone molecules are formed. The ozonator is interlocked with the main recirculation pump.
COLD WATER PRESSURE WASHER
• Two cold water pressure washers are Pressure Pro. –Model WM/EE 30156. They are 2 HP design supplying 3.0 gpm of water at a maximum pressure of 1500 psi. The units are powered by 120/208 V single phase motors mounted with an industrial grade triplex General Pump with a 5 year warranty. Stainless steel spray wands are provided with 50 ' of industrial grade pressure hose with quick connect fittings.
PIPING AND FITTINGS
• All process piping and fittings is schedule 40 pvc and comply with ASTM D 1785-6, ASTM 02467-
06, and ASTM D2564-06el.
• Domestic water piping is schedule 80 pvc ASTM D 1785-06.
• Compressed air piping is copper type K with wrought copper firings ASTM B88-03.
*PRECLEAN
• Compressed-air blow-off of heavily dirt-laden equipment is recommended to reduce the solids loading to the recycle treatment system. This, in turn, will reduce treatment chemical usage.
Particles larger than 1" in diameter can clog the collection sump pump and lead to high maintenance and/or pump failure.
*FUELING
• Fueling can be accomplished prior to the washing operation. Small amounts of splashed fuel can be washed from the equipment and processed in the Carbtrol system.
*TREATED WATER TO WASTE
• The system is fitted with a treated water to waste timer which permits automatic discharge of treated water to prevent excessive build up of dissolved solids. Activating two pins on the timer will facilitate discharge of about 50 to 75 gallons of water on a 24 hour basis. Pins should be activated during a time period when the system is not actively washing.
*WINTER OPERATION
When installed in a freeze protected enclosure and equipped with frost proof hydrants the system can be operated year round.
3. Control Drawings
4. Preventative Maintenance Schedule
Task Frequency Notes
Check pumps Daily
Frequencies may be adjusted do address local conditions and use.
Standard anti-foam can be used to control foaming.
Any cleaning products used must be of the fast breaking type designed for recycle systems Following filter backwash check that the system comes back up to operating pressure; reprime pump if system fails to achieve pressure quickly.
Check sump mixing jet Daily
Check roll-off cart; dump if required Daily
Check hydro screen for excessive runoff Daily
Backwash filter(s); add 2 - 4 oz polymer per backwash
Daily if required due to low pressure; at least once per week
Remove sludge and scum from clarifier Weekly
Recycle solids from biodigester and water storage tank
Weekly check ozone system run light Weekly
Clean mainifold strainer Weekly
Check refill bio seed / nutrient solution tank; refill if required
Weekly
Replace activated carbon filter Yearly
Replace tubing on bio media pump Yearly
Replace ozone chip Yearly Drain and flush clarifier / water storage tank
Yearly
Check flapper in sump check valve; replace if necessary
Yearly
Pump down and clean sumps and flush sump discharge lines
Yearly
4. Plumbing
A. Trap Primers
1. Product Information
Tag Location Manufacturer Model N/A Admin public restrooms Mifab MR-50
N/A Admin employee restroom Mifab MR-50
N/A Maint restrooms Mifab MR-50
2. Sequences of Operation
MIFAB’s M-500 Series of pressure activated trap seal primers (MR-500, M1-500 and M2-500) can be connected to any cold water line, and will be automatically activated when a valve or faucet that is on the line is opened. A pressure drop of 3 PSI will activate all of the trap seal primers.
Inspect inlet filter; clean or replace if needed
Periodically; increase or decrease inspection interval based on the results of previous inspections.
Operation can be observed through inspection ports when a nearby toilet is flushed.
B. Oil Separator
1. Product Information
Tag Location Manufacturer Model 3002-OS-1 Routine Maintenance M113 Jay R. Smith 8565
2. Sequences of Operation
HOW THE INTERCEPTOR OPERATES
• Water draining to the interceptor passes through a flow control fitting which regulates the velocity of the water to the capacity of the interceptor. As the water enters the interceptor at this controlled rate of flow it is free of turbulence. It then passes over a series of separator baffles which are strategically located to insure that greases, fats and oils are efficiently separated from the waste water. Once separated, these contaminants rise to the surface of the water in the interceptor by natural flotation and are accumulated until removed. The waste water now relieved of over 90% of the contaminant oils and greases, continues to flow through the interceptor into the sanitary system.
Remove oil contaminated water As needed: after a spill Drawdown line is capped. Clean through access at top.
C. Air Compressor
Tag Location Manufacturer Model
3002-AC-1 Wash Bay Control M116 Ingersoll Rand Compressor: 2545E10V Refrigerated Air Dryer: D72IN Filter: F711D
2. Initial Setpoints
• Tank pressure: left for users to set
• Dryer temperature: left for users to set
3. Sequences of Operation
START-UP (ELECTRIC MOTOR DRIVEN MODELS)
• Close the service valve.
• Release any remaining tank pressure by slowly opening the manual drain valve.
• Close the manual drain valve and apply power to the compressor. If the pressure switch is equipped with an “ON/AUTO-OFF” lever, flip the switch to the “ON/AUTO” position. If the unit is equipped with a control panel “ON/OFF” switch, move the switch to the “ON” position.
• Slowly open the service valve. CAUTION Unusual noise or vibration indicates a problem. Do not continue to operate until you identify and correct the source of the problem. NOTE Ensure the direction of rotation is correct per the arrow on the motor. If the rotation is incorrect on three-phase units, interchange any two of the three leads.
COMPRESSOR CONTROLS
• AUTOMATIC START & STOP CONTROL. This type of control applies to electric motor driven models under 10 horsepower. NOTE Automatic Start & Stop Control is intended for use when the motor will start no more than 6 times per hour.
o When the receiver tank pressure reaches the factory pre-set maximum pressure (usually 175 PSIG), the pressure switch stops the unit. When the receiver tank pressure drops below the factory pre-set minimum (usually 135 PSIG), the pressure switch resets and restarts the unit.
PRESSURE SWITCH ADJUSTMENT
• WARNING: High voltage is present at the pressure switch contacts when the power supply is connected. Disconnect, lock and tag main power supply before making adjustments.
• CAUTION: Do not adjust the pressure switch to exceed the maximum discharge pressure of the unit.
• NOTE: Adjust the pressure switch only if adjustments are absolutely necessary.
• CUT-IN & CUT-OUT: The cut-out (compressor shut-down) is the pressure at which the switch contacts open, and the cut-in (compressor restart) is the pressure at which the switch contacts close. See COMPRESSOR CONTROLS.
• ADJUSTMENT CONTROLS: All pressure switches have a range adjustment control. Some pressure switches also have a differential adjustment control. On switches without a differential adjustment control, the span between cut-in and cut-out pressure levels switches is factory set for 40 ± 4 PSIG and cannot be adjusted.
• NOTE: Some pressure switches are equipped with an on-off lever used to open and close the electrical contacts inside the switch. THIS LEVER IS NOT A DIFFERENTIAL ADJUSTMENT CONTROL.
The pressure switches with the on-off lever do not have a differential adjustment control.
• ADJUSTMENT PROCEDURES (SWITCHES WITHOUT DIFFERENTIAL ADJUSTMENT CONTROL):
o Remove the pressure switch cover.
o Adjust the range by turning the range adjustment screw clockwise (in) to increase the cut-out point or counter-clockwise (out) to decrease the cut-out point. NOTE: One full turn changes the setting approximately 2 PSIG.
o Replace cover, reconnect power supply and start the compressor.
o Note the pressure gauge reading at which the compressor cuts out.
o Repeat adjustment procedure if necessary.
• ADJUSTMENT PROCEDURES (SWITCHES WITH DIFFERENTIAL ADJUSTMENT CONTROL):
o Remove the pressure switch cover.
o Set the cut-in pressure with the range adjustment nut. Turn the nut clockwise (in) to increase the pressure or counter-clockwise (out) to decrease the pressure. NOTE: One full turn changes the setting approximately 2 PSIG.
o Set the cut-out pressure with the differential adjustment. Turn the differential adjustment nut clockwise (in) to increase the pressure or counter-clockwise (out) to decrease the pressure. NOTE: One full turn changes the setting approximately 2 PSIG.
o Replace the cover, reconnect the power supply and start the unit.
o Note the pressure gauge reading at which the unit cuts out.
o Repeat the adjustment procedure if necessary.
• The minimum possible differential is approximately 20% of cutout pressure. It is advisable to have as wide a differential as possible to avoid frequent starting and stopping of the unit. Note the pressure gauge reading at which the unit cuts-out and re-establish this point if necessary.
Note the interaction between the range and differential adjustments, i.e., if the cut-out is increased, the differential will also increase, or if the differential is narrowed, the cut-out will be reduced, etc. These factors must be considered when adjusting the switch and compensated for accordingly.
REFRIGERATED AIR DRYER
• Most facilities operate with varying degrees of compressed air usage. The Ingersoll Rand Dec dryer matches that by minimizing operating time through the use of thermal mass, cold energy storage.
1. Compressed air enters the dryer through the heat exchanger
2. Air is cooled by cold outgoing air in the pre-cooler/re-heater
3. Circulating glycol cools the compressed air allowing the refrigerant compressor to turn off curing low demands
4. Stainless steel mesh removes the condensed liquid, which is purged from the dryer using a no-loss drain
5. Thermal mass cold energy storage reduces compressor run time saving energy
6. Refrigerant compressor runs only as needed
4. Control Drawings
5. Preventative Maintenance Schedule
Check for oil leaks Daily or before each use
Check lubricant level; fill if needed. Daily or before each use
Check for unusual noise or vibration Daily or before each use
Ensure belt guards and covers are securely in place
Daily or before each use
Ensure the area around the compressor is free of rags, tools, debris, and flammable or explosive materials
Daily or before each use
Test electric drain valve for proper operation;
clean filter screen if needed
Daily Drain valve is on a timer;
every 5 to 10 minutes.
Check refrigerated air dryer for condensate discharge. If no discharge is evident, depressurize, dismantle and clean or replace separator
Daily
Observe the operation of the safety / relief valve; replace if it does not operate freely
Weekly
Inspect air filter element(s). Clean if necessary.
Monthly
Inspect for air leaks. Squirt soapy water around joints during compressor operation and watch for air bubbles.
Monthly
Inspect drive belts; adjust if necessary Monthly
Clean exterior Monthly
Clean filter screen Monthly
Inspect refrigerated air dryer condenser coils.
Remove accumulated dust and dirt with soft brush or compressed air (<30 psi)
Monthly
Change petroleum lubricant while crankcase is warm
Every 3 months or 500 operating hours, whichever occurs first
Drain compressor oil and clean oil sight glass Every 3 months or 500 operating
Install maintenance pack or change synthetic lubricant while crankcase is warm
Every 12 months or 2000 operating
Replace filter element Every 12 months or 2000 operating
Certified tank inspection Within the first five years of service
If it has not been inspected within the first 10 years remove from service until inspected
D. Electric Water Heaters
Tag Location Manufacturer Model
1001-EWH-1 Restroom A110 Eemax SP4208
1001-EWH-2 Housekeeping A116A Eemax EX240T2T
1001-EWH-3 Lunchroom A106 Eemax SP8208
1001-EWH-4 Family Restroom A114 Eemax SP4208
1001-EWH-5 Men’s Restroom A113 Eemax SP4208
1001-EWH-6 Women’s Restroom A112 Eemax SP4208
1001-EWH-7 Housekeeping A115 Eemax EX240T2T
3002-EWH-1 Lunchroom M107 Eemax SP8208
3002-EWH-2 Housekeeping M106A Eemax EX240T2T
3002-EWH-3
Honor Guard Restroom M105
Eemax SP4208
3002-EWH-4 Honor Guard M104 Eemax SP8208
3002-EWH-5
Men’s shower/lockers M111
Eemax EX240T2T
3002-EWH-6 Women’s Restroom M109 Eemax SP4208
3002-EWH-7 Men’s Restroom M112 Eemax SP4208
3002-EWH-8
Routine Maintenance M113
Eemax EX180T2T
Temperature: Between 105°F and 130°F
3. Sequences of Operation
• Flow switch activates heater only on demand (0.7 GPM). There is no standby loss. Indicator light is on when heater element is on.
• Temperature adjustment: Open faucet and allow to run for at least one minute with indicator light on. Adjust output ball valve until desired temperature is achieved. Water temperature is regulated by the flow through the heater; the lower the flow the higher the temperature and vice versa.
Replace heater element As needed When there is no heat with indicator light lit
E. Eyewash
Tag Location Manufacturer Model P-701 Maintenance Shop Haws 736BTWC
2. Sequences of Operation
• Activation: Stainless steel push flag operates a stay open chrome plated brass ball valve that is equipped with a stainless steel ball and stem.
• Stream Control: Steady water flow under varying pressures assured with dual automatic pressure compensation devices.
• EYE/FACE WASH: AXION MSR™ eye/face wash head uses an inverted directional laminar flow to sweep contaminants away from the vulnerable nasal cavity.
• Strainer: Fully serviceable in-line, 50x50 mesh strainer filters debris from reaching the eyewash.
3. Preventative Maintenance Schedule
Task Frequency Notes
Cleaning
Clean and polish with Wright's silver cream; or use mild detergent, liquid soap, or commercial chrome polish. Do not use abrasive or caustic cleaners.
As needed
Test: activate long enough to be sure flushing fluid is provided
Weekly Per ANSI Z358.1-2009 §6.5.3
5. HVAC
A. Fans
1. Product Information
Tag Location Manufacturer Model
3002 - EF-1 Maintenance Building Roof Cook ACE-D 135C15D
3002 - EF-2 Maintenance Building Roof Cook ACE-D 120C15D
3002 - SF-1 M113 Attic Space Cook Gemini GN2000
3003 - EF-1
Vehicle/Equipment Storage Building 1 Roof
Greenheck G-098-A
3003 - EF-2
Vehicle/Equipment Storage Building 2 Roof
Greenheck G-133-A
3003 - EF-3
Grounds Maintenance Storage Roof
Greenheck G-143-A
2. Initial Setpoints
Tag Schedule Notes
3002-SF-1
3002 - EF-1
6am – 6pm Controlled by the same time clock
3002 - EF-2 6am – 6pm Controlled by 3002-
ERV-3 time clock
3. Sequences of Operation
• 3002-EF-1, 3002-SF-1
o General o
: Supply fan and exhaust fan shall be controlled and operated by a remote timer as indicated by the occupancy schedule Occupied (6am-6pm) o
: Dampers shall fully open, supply fan and exhaust fan shall run continuously while duct heater cycles to maintain a leaving air temp of 60F.
Unoccupied (6pm-6am)
• 3003-EF-1
: Dampers shall fully close, supply fan and exhaust fan shall be disabled.
o General o
: The exhaust fan, and motor operated dampers shall be operated by a lockable wall mounted switch. Room shall be fully exhausted 24/7.
Operation
: Exhaust fan motor shall energize and dampers located at intake hood and fan inlet shall fully open when switch is turned on. Fan motor shall de-energize and dampers located at intake louver and fan inlet shall fully close when switch is turned off.
The switch shall be of the lockable type, so exhaust fan cannot be turned off by accident.
• 3002-EF-2, 3003-EF-2, 3003-EF-3
o General o
: The exhaust fan, and motor operated dampers shall be operated by a wall mounted timer switch.
Operation: Exhaust fan motor shall energize and dampers located at intake hood and fan inlet shall fully open when timer switch is turned on. Fan motor shall de-energize and dampers located at intake louver and fan inlet shall fully close when timer stops.
• 3002-EF-1
• 3002-EF-2
• 3002-SF-1
• 3003-EF-1
• 3003-EF-2 & 3003-EF-3
• 3002-EF-1,2 & 3003-EF-1,2,3
Equipment Task Frequency Notes
3002-EF-1,
3002-EF-2,
3002-SF-1
Inspect bolts and setscrews for tightness; tighten if required
Twice per year
Inspect bearings. Twice per year Permanently lubricated bearings. Replace if defective.
Inspect for cleanliness.
Clean exterior surfaces only.
Remove dust and grease from motor housing to assure proper motor cooling.
Twice per year
3003-EF-1,
3003-EF-2,
3003-EF-3
Clean exterior surfaces.
Remove dust buildup on motor housing to ensure proper motor cooling.
Not indicated. Establish inspection interval based on the results of previous inspections.
Grease bearings
Per manufacturer's instructions, generally every 2000 hours or run time.
Only 3003-EF3. Others have permanently lubricated bearings.
6. Recommended Schedule for calibration of sensors and actuators
Equipment Task Frequency Notes
3002-EF-1,
3002-EF-2,
3002-IH-3,
3003-EF-1,
3003-EF-2,
3003-EF-3
Verify motorized damper opens when fan is on and closes when off
Twice per year while servicing fans and as needed (see notes for signs of failed actuators)
Actuators fail after several years. Signs of actuators failed closed include stuffiness and odors, building pressurization (air blowing in or out open doors), lack of airflow at diffusers, and whistling or unusually loud airflows near the fan. Signs of actuators failed open include higher energy use and unusually hot or cold in the mornings, especially near the fan.
B. Energy Recovery Ventilator
1. Product information
Tag Location Manufacturer Model
1001-ERV-1 Mechanical Room A109 ConsERV D01i-FSE
1001-ERV-2 Mechanical Room A115 ConsERV D02i-FSE
3002-ERV-1 (AKA
ERV-3)
Mechanical Room M108 ConsERV D03i-FSE
Tag Schedule Notes
1001-ERV-1 6am – 6pm
1001-ERV-2 6am – 6pm Schedule must match AHU-3
3002-ERV-1 6am – 6pm
3. Sequence of Operations o General o
: Energy recovery ventilator shall be indexed to run by a clock timer. When indexed to run/stop the dampers shall open/close and fans shall start/stop. Refer to occupancy schedule below.
Occupied (6am-6pm) o
: Energy recovery ventilator dampers shall open and fans shall run continuously.
Unoccupied (6am-6pm)
4. Operating Instructions for Integrated Building Systems
: Energy recovery ventilator shall be disabled, dampers shall be closed.
ERV schedule should match building occupancy. For 1001-ERV-1 and 3002-ERV-2 it does not necessarily have to match the air handler schedule. It may be desired to extend the AHU schedule to keep the building conditioned for custodial staff, an occasional late worker, or other non-regular occupants. In such lightly occupied times it is not necessary to introduce the amount of fresh air needed for normal occupancy.
However, 1001-ERV-2, serving the public bathrooms, must run on the same schedule as the AHU because all the air for the AHU must pass through the ERV.
5. Control Drawings
6. Preventative Maintenance
1001-ERV-1,
1001-ERV-2,
3002-ERV-1
Change filters According to manufacturer's instruction
Inspect twice per year while cleaning; adjust interval based on results of previous inspections.
Vacuum both entrance faces of ConsERV cores
Twice per year
Adjust timer for daylight savings time; verify schedule is appropriate for current use
Twice per year: when daylight savings time starts and ends
Unit has battery reserve but battery is not replaceable. If program is lost after power outage then replace timer.
7. Recommended Schedule for Recalibration for Sensors and Actuators
1001-IH-1,
1001-EH-1,
1001-IH-2,
1001-EH-2,
3002-IH-1,
3002-IH-2,
3002-EH-1
Verify motorized dampers open when ERV is on and close when ERV is off
Twice per year while servicing ERVs/exhaust fans and as needed (see notes for signs of failed actuators)
Actuators fail after several years. Signs of actuators failed closed include stuffiness and odors, building pressurization (air blowing in or out open doors), lack of airflow at diffusers and whistling or unusually loud airflows near the ERV. Signs of actuators failed open include higher energy use and unusually hot or cold in the mornings, especially near the ERV.
C. Air Handling Units/Heat Pumps
Tag Location Manufacturer Model
1001-AHU-1 Administration Earthlinked Techologies AVS-4248-CV
1001-AHU-2 Administration Earthlinked Techologies AVS-1824-CV
1001-AHU-3 Administration Earthlinked Techologies AVS-1824-CH
1001-HP-1 Administration Earthlinked Techologies SC-04802C
1001-HP-2 Administration Earthlinked Techologies SC-030-2C
1001-HP-3 Administration Earthlinked Techologies SC-024-42C
3002-AHU-1 Maintenance Earthlinked Techologies AVS-0248-CV
3002-AHU-2 Maintenance Earthlinked Techologies AVS-1824-CH
3002-HP-1 Maintenance Earthlinked Techologies SC-048-2C
3002-HP-2 Maintenance Earthlinked Techologies SC-024-2C
2. Initial setpoints
Tag
1001-AHU/HP-1
1001-AHU/HP-2
1001-AHU/HP-3
3002-AHU/HP-1
Notes
Schedule 6am – 6 pm
Heating setpoint 70°F
Cooling setpoint 75°F
• General
: Air handling unit/heat pump unit shall be controlled and operated by a 7-day programmable thermostat. Refer to occupancy schedule below.
Occupied (6am-6pm)
: AHU fan shall run continuously while unit cycles heating or cooling to maintain a space set point of 75F.
Unoccupied (6pm-6am)
: AHU shall cycle fan and heating or cooling coils to maintain a space set point of 65F in heating mode and 80F in cooling mode Emergency Heat: The air handler is equipped with an electric heating coil for emergency heat. If heat pump/air coil cannot maintain space temperature the electrical coil shall be enabled.
4. Operating Instructions for Integrated Building Systems
Programmable Thermostats
The heat pumps and air handling units for this project are controlled by 7-day programmable thermostats. These thermostats have a number of features and options that affect the comfort and energy use of the buildings.
Fan control: The fan has the following options:
• ON: The fan is on 24/7
• AUTOMATIC: The fan runs only when heating or cooling
• FOLLOW SCHEDULE: The fan runs continuously during occupied hours.
The engineers intended the fans to operate on FOLLOW SCHEDULE. This distributes fresh air throughout the building during occupied hours as required by code. During unoccupied hours the fan operates only when heating or cooling.
Note that the fresh air is provided by the energy recovery ventilators, which are controlled by a separate mechanical timeclock. It is important to ensure the occupied hours are synchronized between these two devices and that the clocks are the same.
To change, press FAN and select the desired setting.
Program schedule:
The default program specified by the engineer is to have the building occupied 6:00 am to 6:00 pm Monday through Friday. This schedule can easily be adjusted to suit actual occupancy schedule. Press MENU, then CREATE/EDIT SCHEDULE. There is an on-screen guide for those who would like additional help.
Password protection: For thermostats located in public areas, such as the public bathrooms, we recommend enabling the password protection to prevent the public from tampering with thermostat settings. Press the MENU button and scroll to SECURITY SETTINGS. We recommend selecting FULLY LOCKED so nothing can be changed without a password. PARTIALLY LOCKED allows temperature to be changed only, but for a bathroom the public shouldn’t need to change temperature.
1001-HP/AHU-1,
1001HP/AHU-2,
1001-HP/AHU-3,
3002-HP/AHU-1,
3002-HP/AHU-2
Filter changes Filters: twice a year or when dirty
Not indicated;
typical. Part of a standard annual service performed by licensed technicians.
Inspect and clean cabinet Once per year
Check refrigerant pressure and check for leaks
Once per year
Verify proper controls (heating, cooling, scheduled occupied/unoccupied, backup heating)
Once per year
Change thermostat batteries
As needed. A message will appear on thermostat screen when batteries are low.
6. Electrical
A. Photovoltaic
1. Product information
Tag Location Manufacturer Model
PV-1,
PV-2
Photovoltaic modules Solar World Sunmodule SW 240
INV Micro-inverter Enphase M215
N/A Communications gateway
Enphase Envoy
2. Sequence of Operations
• Microinverters: The Enphase Microinverter converts the DC output of the PV module into grid-compliant AC power. In addition to performing the DC to AC conversion, it maximizes energy production by using a sophisticated Maximum Power Point Tracking (MPPT) algorithm. This integrated system maximizes energy harvest, increases system reliability, and simplifies design, installation and management.
• Communications Gateway: The Envoy® Communications Gateway is an integral component of the Enphase® Microinverter System™. It operates between the Enphase Microinverters and the Enphase Enlighten® web-based monitoring and analysis software. The Envoy functions as a gateway and monitors the microinverters that are connected to the PV modules. The Envoy collects energy and performance data from the microinverters over on-site AC power lines. It then forwards that data to Enlighten, via the Internet, for statistical reporting.
After the Envoy is installed and completes its initial scan, it maintains an internal database of all known Enphase Microinverters at the site it manages. At regular intervals, the Envoy polls each microinverter for its energy data. Using the site’s broadband router, the Envoy then forwards that information to Enlighten. The Envoy also reports any error conditions that affect it or the microinverters. You can view both energy data and error conditions in Enlighten.
• Web Application: The Enphase Enlighten web-based monitoring and analysis software analyzes the data collected by each communicating microinverter. Enlighten automatically detects any shortfall in energy production, identifies possible causes, and suggests solutions. Enlighten constantly monitors every Enphase Microinverter connected to the Envoy and is essential for monitoring and troubleshooting. Note: At the time of testing an internet connection was in progress with VA IT personnel. Monitoring could only be done through the communications gateway.
4. Preventative Maintenance
Web application
Check for errors and power production
Periodically: adjust frequency based on what is found
If web application is not available check at monitoring gateway
PV
modules
Cleaning As needed
In general, the modules do not need any cleaning if the tilt angle is sufficient (> 15°; self-cleaning by rain). In case of heavy soiling, we recommend cleaning the modules with plenty of water (tap water or deionized water) without any cleaning agents. If necessary, a soft cleaning device (sponge, soft brush with split bristles) may be used. In case of soiling by dust or sand the modules can be cleaned with a soft brush without using water. Never scrape or rub off dirt; this may result in microscratches
Inspection Regularly (i.e. yearly)
• Verify all fixtures are securely tightened and corrosion free
• Wiring is securely connected, properly arranged and free of corrosion
• Cables are free of damage
B. Manual Transfer Switch
Tag Location Manufacturer Model
MTS-100R
Administration Panel
EP1
General Electric Zenith ZTG000A0M010F
None set during commissioning due to lack of generator. Time delays are user adjustable but don’t apply in this case because it is operated manually.
3. Sequence of Operations
The manual transfer switch monitors voltage of the normal power source. When the voltage of any phase of the normal source is reduced to 80% nominal value for a period of 0-10 seconds (programmable), a pilot contact shall close to initiate starting of the engine generator. When the emergency source has reached a voltage value of 90% of nominal and achieved frequency within 95% of the rated value, the load shall be transferred to the emergency source after a programmable time delay. When the normal source has been restored to not less than 90% of rated voltage on all phases, the load shall be retransferred to the normal source after a time delay of 0 to 30 minutes (programmable). The generator shall run unloaded for 5 minutes (programmable) and then automatically shut down. The generator shall be ready for automatic operation upon the next failure of the normal source. If the engine generator should fail while carrying the load, retransfer to the normal source shall be made instantaneously upon restoration of proper voltage (90%) on the normal source.
4. Operating Instructions for Integrated Building Systems
Although this transfer switch is capable of automatic operation, it is intended to be used manually for this project. A portable generator (not part of the project) is to be manually connected to the generator side of the transfer switch. Start the generator and when it is operating normally, press the transfer button to transfer to generator. Once normal power is available again, press the transfer button again to transfer to normal power.
MTS-100R
Inspect for accumulation of dirt or dust; clean if needed.
Not indicated; periodically
Cycle to ensure proper operation Not indicated; periodically
C. Occupancy Sensors
Tag Location Manufacturer Model
OCD
Administration and Maintenance Buildings
(Ceiling mount dual technology)
Sensorswitch CM PDT 9R
OCHB Vehicle Storage Building
(Ceiling mount high bay)
Leviton OSFHU
OCU
Administration and Maintenance Buildings
(Ceiling mount ultrasonic)
Sensorswitch CM PDT 9
SO Varies (Wall switch) Sensorswitch WSD WH
2. Initial Setpoints
• OCD (Ceiling mount dual technology)
: Time delay 10 minutes, ambient sensor 40FC OCHB (Ceiling mount high bay)
: Time delay 10 minutes
OCU (Ceiling mount ultrasonic)
• S
: Time delay 10 minutes
O (Wall switch)
: 10 minutes, ambient sensor 40FC
OCD and OCU
OVERVIEW
(Standard ceiling occupancy sensors)
• Open area office lighting control is made cost effective with the use of the CM PDT 9 Series Standard Range 360° occupancy sensor. This sensor provides line-of-sight PIR detection of small motion in a circular pattern, and combines overlapping MicrophonicsTM
SENSOR OPERATION
coverage for detection of occupants working in their cubical space. By installing multiple CM PDT 9s on 30 ft (9.14 m) centers, large control zones are created (typically one per circuit of lighting). The lighting is then controlled in blocks similar to manual switching. Restrooms with stalls, large storage areas with shelving, and libraries with study carrels are also easily and cost-effectively controlled by the CM
PDT 9.
• Sensors with Passive Dual Technology (PDT) first see motion using 100% digital Passive Infrared (PIR) detection and then engage MicrophonicsTM
LAMPMAXIMIZER®
to hear sounds that indicate continued occupancy. This patented technology uses Automatic Gain Control (AGC) to dynamically self adapt a sensor to its environment by filtering out constant background noise and registering only noises typical of human activity. When occupancy is detected, a DC output goes high and can drive up to 200 mA of connected load. If needed, a 10 second grace period also allows the lights to be voice reactivated after shutting off. The sensor is powered with 12-24 VAC/VDC and typically operates with a PP20 or MP20 power pack, enabling 20 Amp circuits to be controlled.
• This sensor also contains patent pending LampMaximizer technology that allows users to aggressively target energy savings while still protecting lamp life. A minimum on timer, factory set at 15 minutes, helps preserve lamp life by eliminating all lamp cycles shorter than lamp manufacturers' recommendations. A standard occupancy time delay is also present that ensures lights turn off (assuming minimum on timer has elapsed) if no occupancy is detected. This timer is factory set at 10 minutes to promote energy savings, but is adjustable between 30 seconds and 20 minutes. These adjustments can be done manually, through the unit's push-button, or automatically every two weeks through an advanced mode, called LampMaximizer+, that determines the optimum time delay in order to maximize both lamp life and energy savings.
Additionally, this sensor maintains statistics on total lamp on time and number of cycles.
OCHB
OVERVIEW
(High bay ceiling occupancy sensors)
• Designed for mounting heights of up to 45ft, the CMRB 6 High Bay 360° sensor provides Passive Infrared (PIR) occupancy detection over a 15-20 ft radial coverage pattern that overlaps the areas lit by a typical high bay fixture. This line voltage sensor switches loads directly without the need for a power pack. The CMRB 6 sensor mounts directly to the end of a lighting fixture through an extended ½ inch chase nipple, and is ideal for individual on/off control of T5/T8 florescent lighting. For multiple fixture control, multiple low voltage CMB6, CMB 60, and/or HMB 10 Series High Bay sensors with power packs are recommended. For lower mounting height applications, MBRB9 or CMRB 10 Series sensors are recommended
SENSOR OPERATION
• The sensor detects changes in the infrared energy given off by occupants as they move within the field-of-view. When occupancy is detected, a self-contained relay switches the connected lighting load on. The sensor is line powered, switches line voltage, and requires no field calibration or sensitivity adjustments.
LAMPMAXIMIZER®
• This sensor also contains LampMaximizer as described above.
SO
OVERVIEW
(Wall switches with occupancy and photocell)
• The WSD is a stylish, easy to install, and simple to use Wall Switch Decorator style Passive Infrared (PIR) sensor. It is ideal for private offices, copy rooms, closets, or any small enclosed space without obstructions. A user programmable time delay ensures that once the room is vacated the sensor will time out and turn off the lights. Additionally, the WSD sensor has several On Modes and Switch Modes that can be programmed using the front push-button. For rooms with obstructions, the Dual Technology WSD PDT Series sensor is recommended.
SENSOR OPERATION
• The sensor detects changes in the infrared energy given off by occupants as they move within the field-of-view. When occupancy is detected, the relay switches the connected load on as dictated by the sensor's operational settings.
• An internal timer keeps the lights on during brief periods of inactivity and turns the lights off when it expires. The default time delay is 10 minutes. This timer is programmable from 30 seconds to 20 minutes, and is reset every time occupancy is re-detected. Patent pending LampMaximzer technology is also present in this sensor, providing an additional minimum on time (disabled by default) to be used if desired. This state-of-the-art design requires no field calibration or sensitivity adjustments.
ON MODES
• AUTOMATIC ON (default) - Lights come on when occupancy is detected.
• MANUAL ON - Requires the occupants manually turn on lights via the push-button.
• REDUCED TURN ON - Sensor is initially set to only detect large motions. Effectively ignoring PIR signals reflected off of surfaces, while still sensing occupants when they enter the room. Once lights are on, the sensor returns to maximum sensitivity.
SWITCH MODES
• PREDICTIVE OFF MODE (default) - This mode allows occupants to turn lights off via the switch without losing the convenience of having the lights automatically turn on when they re-enter the room. Pressing the switch turns the lights off and temporarily disables the occupancy detection in the sensor. After a short exit time delay, the occupancy detection reactivates and monitors for an additional grace period. If no occupancy is detected, the zone will remain in Automatic On operation. If occupancy is detected, the zone will go to a Permanent Off mode, requiring the switch to be pressed again in order to turn the lights on and restore the sensor to Automatic On operation.
• PERMANENT OFF- Pressing the switch turns the lights and the sensor off.
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