Attachment 7 Yeadon Air Supported Structure Operation and Maintenance Manual.pdf

P L A Y

MORE™

AIR-SUPPORTED DOME

OWNER’S MANUAL

2Operating and Maintenance Instructions » 2/2019 index Section 1: Introduction

Section 2: Fabric Membrane

Section 3: Anchoring System

Section 4: Inflation System

Section 5: Operating Procedures

Section 6: Emergency Procedures

Section 7: Inspection Checklist forward This manual is provided to operators and users of air-supported structures as a guide to achieve the best performance under all weather and climatic conditions.

This manual is to be used in conjunction with supplier’s manuals, drawings and specifications for the project.

Not all parts of this manual may be applicable to your structure. For instance, if Yeadon Domes has only provided a membrane for use with your existing non-Yeadon supplied furnace/inflation system, doors, lights or an alternative anchor system such as angle iron, then only Section 2:

Fabric Membrane may apply. The parameters of operation will likely remain the same, but always be sure to follow the operator’s manual for equipment and components.

This manual was designed for use by operators of a complete air-supported structure package from Yeadon Domes. However, many sections in this manual can be used as a reference to give you a guideline to the safe operation of your air-supported structure. Yeadon Domes understands there are cases when components from other suppliers may be used in conjunction with Yeadon-supplied components. This manual may not be what is prescribed by the suppliers of other components.

Yeadon Domes is not liable for issues or problems related to use of this manual on components not furnished, supplied or installed by Yeadon Domes.

Forward + Index

Yeadon Domes 575 SE 9th, Suite 20

Minneapolis, MN 55414 800-493-2366 toll free 651-633-7400 phone

651-633-2019 fax

3Operating and Maintenance Instructions »

INTRO-

DUCTION

Section 1

A dome is a system of components, carefully engineered to work together to provide an expansive indoor practice/play space for years to come.

AN OVERVIEW

An air-supported structure is an engineered system consisting of the fabric membrane, anchoring system, inflation unit, standby power system, doors for pedestrian entry, airlock doors and a lighting package.

All components have been carefully selected for use with the structure and — provided they are properly maintained — should provide long life and dependability.

Air-supported domes are one of the simplest and most economical building systems available on the market. One of the numerous advantages of this building is the large unobstructed floor area which makes the air-supported structure very appealing to recreation facilities, construction companies and warehousing operations.

As the term “air-supported” suggests, it is held up by positive air pressure. This pressure is maintained within the confines of the fabric, emergency exits, airlocks, anchoring system and floors by means of continuously operating fans that may be incorporated into a furnace for heating, with a coil for A/C, a combination of the two or by itself.

Access is gained to the structure through an airlock or revolving door, and emergency exits are provided to leave the structure in emergency situations. To maintain proper operation, each air structure is designed to give the proper inflation pressures under a wide variety of weather conditions, and safety features are built-in to protect against pressure drop, power failure or over-pressurization (with optional equipment).

The following sections of this manual will outline the operation and maintenance of the various components which make up your structure. The operator should study these sections carefully to become familiar with the equipment in order to achieve optimum performance from the structure for as long as it’s in operation.

Section 1: Introduction

4Operating and Maintenance Instructions »

FABRIC

MEMBRANE

Section 2

The fabric membrane of your dome consists of high-strength polyester fabric coated with polyvinyl chloride on both sides.

Entry Points At all points of entry into the structure, a connection transition section is incorporated into the fabric which provides an airtight seal to a door, airlock or fan/ventilation duct.

Each connection is equipped with a stress relief cable around the opening and is connected to the anchor beam by means of an angle plate bolted to the beam, or by a stress relief anchor that is embedded into the grade beam. It is important that the tension of the turnbuckles on either end of the wire ropes be checked and adjusted as part of routine inspections of the structure.

Fabrication and Joints The fabrication method used in construction of each section of the membrane employs dielectric welding techniques to achieve a bond between each band of fabric.

At your location, sections are joined together by means of a field joint fastened together with an aluminum flat bar on both sides of the joint and bolted through the fabric. (fig. 1)

In structures with main cables, the fabric is convoluted between cables to reduce fabric stress. The cable assembly is affixed to the membrane by means of nylon loops. Vinyl coated cables are used to prevent wear to the membrane itself. (fig. 2) fabric curtain airtight seal stress relief cable attached w/turnbuckles and shackles to anchor plates stress relief cable anchor plates recessed into grade beam cable sleeve

Section 2: Fabric Membrane rope edge of section weld fabric �ap

�eld joint aluminum bar velcro strip interior exterior

�g. 2

�g. 1 fabric disc heat-sealed to dome webbing sewn to cover fabric cover heat-sealed to underside webbing cable through webbing loop

5Operating and Maintenance Instructions »

Fabric Repairs All damages to fabric, including tears, rips, small holes, grazes, etc., should be properly repaired immediately.

Repairs may be performed utilizing heat sealing, which uses a hot air blower (heat gun) and seam roller. Major repairs should be carried out by a Yeadon Service Technician. A repair kit consisting of a hot air blower, roller and extra material can be purchased if desired. (Refer to Section 6: Fabric Tears for more information)

MEMBRANE CLEARANCE

1. Proper clearance should be maintained between the membrane and any material or equipment stored inside the air dome. The membrane can deflect under wind loads and snow shed, and this deflection increases during windy or snowy conditions due to inevitable loss of inflation pressure. If pressure loss occurs beyond tolerable limits, deflection and billowing of the membrane can cause it to abrade or snag on objects inside, thereby resulting in damage to the fabric which could include punctures.

2. Maximum distortion will occur on the windward side of the structure at a height of 15’-20’ feet above ground level. This inward deflection of the membrane under maximum design wind load could be more than six feet, (72”). To avoid contact with the membrane, any obstructions or stored material should be placed to assure a minimum clearance of at least six feet (72”), between the membrane and the objects inside.

AVOID SHARP PROJECTIONS

Sharp projections (i.e. vertical pipes or poles, sharp-edged pallets or racks, non-collapsible light stands, etc.) should be avoided. If necessary, they should be padded to prevent these items from abrading or puncturing the membrane.

This is especially important in the event of emergency conditions such as heavy winds or snow when the membrane may deflect or distort and could be damaged because of a puncture, abrasion, or snagging on any sharp object. DO NOT install any high towers or objects above 12’ without prior advisement by Yeadon.

Section 2: Fabric Membrane de�ection high winds

15’–20’ objects within 72” of the membrane — both on the ground and in the air — are a puncture hazard in high winds

6Operating and Maintenance Instructions »

ANCHORING

SYSTEM

Section 3

The anchoring system consists of a concrete grade beam that holds anchors and cables in place, and ensures an airtight seal around your dome’s perimeter.

CONCRETE PERIMETER BEAM

The concrete beam has the following purposes:

1. Provide the weight required to anchor the structure down

2. Protect the base of the structure from physical damage due to snow removal, etc. if the beam is the above-ground style

3. Define the symmetrical perimeter of the structure and prevents air leakage around the base of the structure

The concrete beam has embedded preformed channel, used in conjunction with a board (2x4), anchors the fabric to the beam.

MAINTENANCE

Very little maintenance is needed, but regular inspections are required.

Weekly inspection of the 2x4 boards is required to make sure they are still intact, solid and in the correct position within the channel. If a board is raised, it must be tapped back into place. The perimeter channel should be kept clear of debris and vegetation. Boards degrade over time and will eventually need to be replaced. To determine board integrity, push a standard screwdriver into each board. It is time to replace a board if the screwdriver goes in more than ¼”.

Call Yeadon’s Service Department with questions regarding board replacement.

TREATED LUMBER IS NOT TO BE USED.

THE TREATED LUMBER CURRENTLY AVAILABLE

CONTAINS COPPER, WHICH CAN CAUSE A

GALVANIC REACTION WITH THE ALUMINUM

CHANNEL. DIMENSIONAL COMPOSITE OR

PLASTIC LUMBER MAY BE USED.

Section 3: Anchoring System

7Operating and Maintenance Instructions »

INFLATION

SYSTEM

Section 4

The inflation system performs the crucial role of maintaining both the air pressure and internal temperature of your dome.

Equipment Configuration Types

1. A single inflation unit capable of providing inflation, pressure and heat for the dome. This arrangement will often include a backup power generator to provide utility grid power redundancy to the unit. (fig. 1)

2. Two inflation units, when one is not capable of providing enough heat for the dome by itself and/or the operator and project simply want mechanical redundancy beyond the fault tolerance of the single unit. Typically when there are two inflation units, one is equipped with a backup natural gas or diesel power generator. Each inflation unit is able to monitor dome pressure and maintain inflation. (fig. 2)

3. Single inflation with stand‐by fan. This arrangement is common when enough heat can be produced by one inflation unit and the dome is permanent, meaning it’s up year-round versus seasonal use. A year‐round dome will need its inflation equipment serviced from time to time, so a separate backup fan sits adjacent to the main unit and is operated when the main is out of service or any event occurs that demands more inflation air. (fig. 3)

Section 4: Inflation System in�ation unit in�ation units in�ation unit backup generator backup generator stand-by fan

�g. 2

�g. 1

�g. 3

8Operating and Maintenance Instructions »

Pressure Management Overview There are two primary types of domes: cabled and non‐cabled.

Non‐cabled are commonly smaller swimming pool or tennis domes, while cabled domes are typically large tennis and field sport domes.

Non‐cabled domes commonly have a 1.5” water column (w.c.) max pressure target while cabled domes each have their own specific, engineered, upper pressure target which is typically between 1.6” and 2”. A critical high pressure for a non‐cabled dome would be 1.75” and 2.25” for a cabled dome. A dome can operate on a calm day as low as .75” w.c. or as operator prefers for energy savings, but 1” is common in nice weather. Critical low pressure would be considered .5” w.c. for any dome.

INFLATION UNIT OPERATION OVERVIEW

The inflation units are equipped from the manufacturer with a manual/auto switch.

When in manual mode, dome pressure is controlled by observing a magnehelic gauge and adjusting a dial which controls the return air (RA) damper and dome pressure. Both the gauge and the dial are in the inflation unit’s controls cabinet. If the inflation unit is equipped with a digital controls option, auto mode turns over operation to the digital controller that will operate the dome in accordance with a programmed sequence of operation.

Whether in manual or auto mode, the inflation unit(s) will run continuously. Units with variable frequency drives will commonly use fan speed modulation in conjunction with the RA damper modulation for pressure control, make‐up air and energy efficiency.

AUTO MODE OPERATION

If operating in auto mode on digital controls, the unit will commonly have an occupied mode, unoccupied mode, and optional weather modes for snow and/or high winds. Each mode may be configured with specific temperature and pressure set points. Depending on the operator’s preference, the heat can be turned down or off altogether during unoccupied times. Typically, the RA damper is closed as much as possible when no heating is needed in order to limit air recirculation and conserve energy.

If equipped with a Yeadon weather station in addition to digital controls, there will typically be a wind mode and/ or snow mode, each which is automatically invoked by environmental sensors located on the inflation unit or on or around the dome. In wind mode, the automation will increase and decrease the dome pressure based on 15-minute average wind speed measurements. A graduated pressure change occurs when wind speeds exceed 12mph, 20mph and 30mph. An external temperature at or below 34 degrees paired with precipitation will initiate snow mode. During snow mode, both the internal temperature and pressure set points are increased. Once invoked, snow mode can only be deactivated by human intervention after observation of conditions and ensuring there is no remaining snow accumulation on the dome.

Section 4: Inflation System

Typical pressure guidelines

1.5”

1.75”

.5”

1.6” – 2.0”

2.25”

.5”

Max Target:

Critical High:

Critical Low:

NON-CABLED CABLED

9Operating and Maintenance Instructions »

MANUAL MODE OPERATION

Regulating the operating pressure should be an integral part of the opening and closing routine. Under normal operating conditions (winds below 10 miles per hour) the pressure should be set at 1” w.c. when the structure is first opened in the morning. Commonly, 1” w.c. of pressure is achieved when the RA damper is somewhere between 65%- 80%, which represents the degree the damper is open and recirculating air verses bringing in new outside air.

Rotate the dial no more than 5% before visually confirming pressure change on the gauge. Allow at least 5 minutes for adjustment prior to further changes to allow the dial setting to take hold. At closing — when there are no inclement weather forecasts — increase pressure to 1.5” w.c. as a safety practice. When the positioning of the of the RA damper dial has been established for a.m. and p.m. settings, they can be inscribed on the face of the manual dial for convenience. Recheck settings weekly for accuracy.

Example: 75% on RA dial might produce 1” of pressure on the gauge. 70% on RA dial might produce 1.3” to 1.5” pressure on the gauge.

When heating/cooling the structure in calm air conditions, economize on fuel costs by lowering pressure to 1” w.c., but be sure to consistently monitor conditions to guard against being caught by sudden changes in weather.

Despite of the fact that your air structure has been designed to withstand the wind speeds dictated by local codes, it is the responsibility of the operator to safeguard the dome by making all staff aware that significant changes in existing wind and forecast conditions will require corresponding pressure adjustments.

Excessive movement of the fabric membrane in high winds can create situations that endanger the integrity of the dome. Make sure there is adequate clearance between the membrane and structures or components inside the dome, like light stands or stored materials. See Section 2: Membrane Clearance for more information.

To guard against excessive movement of the fabric membrane in high winds, use the indicated pressure settings as a guide.

Internal pressure settings in high winds

1”

1”

1.25”

1.25”

Non-cabled domes:

Cabled dome:

0-10 mph 10-20 mph

1.5”

1.5”

20-30 mph

1.7”+

1.9”+

30+ mph

Section 4: Inflation System

10Operating and Maintenance Instructions »

PERSONNEL INVOLVEMENT AND RESPONSIBILITIES

Automation systems are tailored to a specific location and boost efficiency and reliability in the dome’s operation.

The system can be relied on to adjust the dome’s temperature and pressure in accordance with actual weather conditions and energy efficiency. It’s important to remember that manual monitoring by the dome operator is still required. Maintenance and scheduled tests must still be performed.

Some automation systems allow you to monitor the dome from a PC, smart phone or tablet. It is important to have a good working knowledge of these systems and when to use them. Automation is not a substitute for on-site verification of conditions.

It is good practice to keep detailed records of your operations and how your dome reacts in inclement weather so that historical data can be a part of the required dome operations training as personnel changes.

FOR FURTHER INFORMATION SPECIFIC TO YOUR INFLATION EQUIPMENT, PLEASE REFERENCE

THE PROVIDED MANUFACTURER’S EQUIPMENT MANUALS.

Section 4: Inflation System

11Operating and Maintenance Instructions »

OPERATING

PROCEDURES

Section 5

The health of your dome depends on diligent attention to weather conditions and the fostering of good organizational habits around day-to-day operations.

Inspection Periodic inspection of the dome should include consideration of the following:

1. Fabric connection curtains for damage and accumulated snow or ice

2. Pressure sensing tubing – checked for obstructions, wear and secure connection to pressure reading gauges or equipment

3. Stress relief hardware around openings for tension

4. General fabric surface area for holes or fabric damage

5. Proper installation of 2x4 channel boards

6. Damage-prone areas:

• Proximity to working areas inside (heat damage and abrasion)

• Perimeter anchoring damage due to snow removal

• Vehicle entrance

7. Fabric has a lifespan; Yeadon recommends an inspection by Yeadon personnel for detailed visual examination of components and to perform an outer fabric strength test once every 2 years as the dome nears the end of the fabric warranty period

8. Daily recording of dome pressure

Section 5: Operating Procedures

Yeadon has created an easy-to-use inspection checklist for your convenience.

Find it in Section 7:

Inspection Checklist.

Fabric membrane

INSPECTION CHECKLIST

INSPECTION POINT NOTESINITIALS

Internal pressure Note pressure reading

Yeadon recommends a thorough weekly inspection in order to identify and address problems before they arise.

Initial each inspection point as it is completed and take thorough notes. Not all checklist items may be present.

Pressure sensing tubes

INSPECTION POINT NOTESINITIALS

Connections Ensure secure connections to pressure reading gauges and equipment

Perimeter snow build-up Ensure the perimeter is clear of snow

Perimeter clearance Note and remove any dangerous/sharp objects both inside and outside

Outer fabric integrity Note holes, tears or other damage

Inner fabric integrity Note holes, tears or other damage

Fabric curtains Ensure airtight seal to entrances, note any damage found

Tube integrity Check for obstructions and wear and tear

1Inspection Checklist

12Operating and Maintenance Instructions »

SNOW ACCUMULATION

Air supported structures are designed to shed snow through a combination of pressure, curvature and some heat transfer. While effective, it is possible under some scenarios for snow to accumulate on the top, or on door attachment curtains. If this condition occurs, the operator must immediately take steps to manually remove the snow. During snow events, snow will accumulate along the base of the membrane.

Snow must NOT be allowed to accumulate on the top of the membrane, around the dome base or on fabric connecting curtains. To avoid snow accumulation, the following actions should be taken:

1. If heavy snow is anticipated and your mechanical equipment is controlled manually:

• Set internal pressure to high setting specific to your type of structure as described below (see #2)

• Turn the heat up to 70°F

• Monitor regularly during snow event

2. If heavy snow is anticipated and your mechanical equipment has an automation package:

• Monitor the weather conditions and system to ensure it adjusts the pressure and temperature in accordance with the site-specific parameters as defined in the sequence of operations

• Monitor regularly during snow event

3. If snow accumulates for any reason:

• Make sure the internal pressure is set to high (1.5” w.c. for non-cabled domes, 1.9” w.c.

for cabled domes)

• Make sure the thermostat is set to a minimum of 70°F

• Pull a rope, in a sawing motion, back and forth over the top of the dome. Make sure the rope is long enough to allow the pullers to stay ahead of the section of the rope in contact with the snow to avoid sliding snow hitting them. They must stay a safe distance away from the dome while performing this technique. It may need to be done several times to remove the buildup, and it may need to be repeated during extended snow storms. (Contact Yeadon to schedule a training session on this method.)

If the above measures fail to dislodge the snow, call Yeadon at (800) 493-2366; option 3 for service during regular business hours and option 6 for after-hours emergency hotline.

Snow should also not be allowed to build up around the dome’s perimeter as it can distort the shape of the structure in such a way as to put excessive stress on curtains, cable anchors, and supports. Removal must occur immediately after and during the storm in extended snow falls.

When removing snow around the perimeter, care should be taken that mechanical equipment, snow blowers or shovels do not damage the fabric membrane. Snow must be kept clear of all emergency exits and main entrance doors. Use plastic shovels with any steel edging removed.

Section 5: Operating Procedures as a safety measure, do not operate heavy machinery within 3’ of the fabric membrane interio r exterio r

13Operating and Maintenance Instructions »

SNOW ACCUMULATION DETECTION

If through visual observation, you cannot determine if snow has accumulated, the interior measurement method of detecting deflection must be used.

The operator must have an accurate laser measuring device.

The following three locations should be used for measurement:

• Two T-plates where the split end meets the first barrel section of each end

• Midpoint of center field joint

Take baseline measurements using the space provided prior to any snowfall with the dome’s internal pressure at 1.9” water column (w.c.) to determine the dome’s normal height dimensions. Baseline measurements should be an average of at least three separate recordings on different days. Place the laser on the floor pointed straight up. Aim it to hit the very center of the aluminum section plate in each location. Record these dimensions in the space provided for future reference.

During any sustained/heavy snowfall, take a reading at these same 3 points. If there is a substantial buildup of snow, the dome will deflect and the measurements at these locations will be less than the average. A reading should be taken every 2 to 4 hours, depending on the rate of snowfall and the temperature. If the dome has deflected more than 3’6” from average, the operator needs to perform the manual snow removal operation to dislodge the snow and allow it to shed off the top. Once the snow has shed, the operator should remove it from the perimeter base. This operation must continue until the snowfall has ceased and the deflection is less than 3’6”.

The prescribed manual method of removing the snow as described earlier is to pull a rope back and forth over the dome. This sawing method will break up and dislodge the snow to allow it to shed off the structure. The operation requires 2 to 4 people under most conditions. If there is any concern or problem performing this operation, call Yeadon’s hotline for assistance at (800) 493-2366; option 3 for service during regular business hours and option 6 for after-hours emergency hotline.

Section 5: Operating Procedures

Pre-snowfall measurements

Baseline measurements (avg)

T-plate 1:

Midpoint:

T-plate 2:

T-plate 1:

Midpoint:

T-plate 2:

MEASUREMENT 1 MEASUREMENT 2

T-plate 1:

Midpoint:

T-plate 2:

T-plate 1:

Midpoint:

T-plate 2:

MEASUREMENT 3

T-PLATE 1 MIDPOINT T-PLATE 2

MEASUREMENT 4 (optional) measured de�ection estimated de�ection measure to dome peak at

�eld joint baseline dome heightT-plate center �eld joint

T-plate

14Operating and Maintenance Instructions »

MORNING OPENING PROCEDURES

1. Check dome for snow accumulation around sides, doors and on top

2. If no snow accumulation or high winds are expected, lower pressure by turning manual potentiometer to recommended setting

3. Check the pressure, adjust if necessary and record

NIGHT CLOSING PROCEDURES

1. Turn off or reduce heat if no snow is forecast

2. Raise pressure by turning manual potentiometer to your dome specified pressure

3. Check the pressure, adjust if necessary and record

4. Check all exit, entrance and vehicle airlock doors to make sure they are closed and latched. Always make sure both set of sets of doors on either vehicle or personnel airlocks are closed and secure.

5. Turn off lights

FOR FURTHER INFORMATION SPECIFIC TO YOUR INFLATION EQUIPMENT, PLEASE REFERENCE

THE PROVIDED MANUFACTURER’S EQUIPMENT MANUALS.

Section 5: Operating Procedures

15Operating and Maintenance Instructions »

EMERGENCY

PROCEDURES

Section 6

Preventing an emergency from ever happening is always the best course of action, but when the unexpected occurs, it’s important to know what to do.

THE YEADON HOTLINE

When in doubt or if the procedures below do not work, consult with Yeadon experts by calling the Yeadon hotline at

(800) 493-2366; option 3 for service during regular business hours and option 6 for after-hours emergency hotline.

BE AWARE OF PRESENT AND FUTURE WEATHER CONDITIONS AT ALL TIMES!

Fabric Tears It is advisable to have fabric, a heat sealer and seam roller on site at all times.

Should a tear occur to the outer fabric, it should be repaired by a Yeadon technician. If this is not immediately possible:

• Mark top and bottom of tear with a marker so you can see if it grows

• Take photos of the damaged area, and call the hotline as listed above

• If necessary, cover tear over with plywood from the inside and outside and screw both pieces of plywood together. As a temporary fix, this will help maintain air pressure and relieve some of the stress at the location of the tear and minimize potential growth.

Total Power Failure If a total power failure occurs along with an inoperable or no standby unit and no generator backup:

1. Occupants should vacate structure immediately

2. Ensure that all doors are closed, including emergency exits, the PAL and VAL

3. Protect the fabric membrane as much as possible in case deflation occurs by:

• Lowering pole lights and stands (if applicable) and all other protrusions

• Moving equipment away from perimeter

• Covering any sharp edges of anything that might come in contact with the membrane

4. Check standby generator – refer to your generator operator’s manual (re: boost battery, check fuse, check controls)

Section 6: Emergency Procedures

16Operating and Maintenance Instructions »

Over Pressurization

1. IMMEDIATELY open an exit door

2. Switch your inflation unit to manual mode and change RA damper to 100%

3. Monitor inflation unit issue and adjust settings until rectified

Heavy Snow

1. Increase pressure to maximum design load pressure

2. Set thermostat to 70°F

3. Remove the snow around perimeter as needed, see Section 5: Snow Accumulation

4. Contact Yeadon if you have any questions at (800) 493-2366

Heating Failure

1. Located reset button in furnace cabinet

2. Push flame reset and wait 5 minutes for ignition

3. If ignition continues to fail, do not attempt again and contact your local HVAC Service contact

SPARE PARTS

It is strongly recommended that each air structure operator have available a selection of spare parts and emergency equipment for quick repair. A few recommended items to have on hand include:

primary fuses for your inflation equipment, outer fabric, (5) spare 2x4’s cut to 1’ lengths, pry bar, mallet,

(2) sheets plywood, screws and drill/driver.

TIPS FOR AVOIDING EMERGENCIES

1. All air dome attendants must have full knowledge of the safety procedures, dome and pressure system in the event of severe weather or power failure and have access to an emergency phone number or Yeadon’s hotline in case of problems they are not equipped to handle

2. Yeadon recommends scheduling a training session with Yeadon personnel every couple of years and if/when there is a change in personnel that maintain the dome

3. When leaving the air structure, check to make sure all doors are closed, sealed and set the pressure to accommodate high winds

4. Yeadon recommends a minimum of one annual inspection by a Yeadon Project Manager, as well as a checkup by a local contractor for all your equipment: inflation, standby/generator and AC unit — good maintenance is essential

Section 6: Emergency Procedures

17Operating and Maintenance Instructions »

INSPECTION

CHECKLIST

Section 7

Regular inspections of the interior, exterior, inflation systems and other components of your dome are crucial to its health and longevity.

PREVENTATIVE MAINTENANCE

Yeadon recommends inspecting your dome weekly so that you can identify and address problems before they arise.

Being proactive about maintenance allows you get the most out of the investment in your dome, and helps ensure your dome stays in continuous operation. On the following pages, you’ll find an inspection checklist that can be printed and used to do a thorough inspection of your dome.

The checklist is intended to pro-actively identify maintenance issues, most of which can easily be addressed in-house.

If a more significant problem is identified, call the Yeadon hotline at (800) 493-2366; option 3 for service during regular business hours and option 6 for after-hours emergency hotline.

SERVICE PLANS

Yeadon offers a variety of service plans to extend the life of your dome and ensure your dome operates at peak efficiency. Training for your team is also included in most plans, should personnel change. With a Yeadon Service Plan, you’ll have a partner committed to the success of your dome, whether yours is a seasonal or year-round facility.

A service plan allows you to get access to our expertise, get help with inspections and installation, and lock in dates for the put-up and take-down of seasonal domes.

For more information, contact your Yeadon sales representative.

Section 7: Inspection Checklist

Fabric membrane

INSPECTION CHECKLIST

INSPECTION POINT NOTESINITIALS

Internal pressure Note pressure reading

Yeadon recommends a thorough weekly inspection in order to identify and address problems before they arise.

Initial each inspection point as it is completed and take thorough notes. Not all checklist items may be present.

Pressure sensing tubes

INSPECTION POINT NOTESINITIALS

Connections Ensure secure connections to pressure reading gauges and equipment

Perimeter snow build-up Ensure the perimeter is clear of snow

Perimeter clearance Note and remove any dangerous/sharp objects both inside and outside

Outer fabric integrity Note holes, tears or other damage

Inner fabric integrity Note holes, tears or other damage

Fabric curtains Ensure airtight seal to entrances, note any damage found

Tube integrity Check for obstructions and wear and tear

1Inspection Checklist

Anchoring system

INSPECTION POINT NOTESINITIALS

Concrete integrity Note any damage found

In�ation system

INSPECTION POINT INITIALS

Furnace

Board placement Ensure all boards are in place

Main cables Ensure cables are attached with structural bolt and nut, are in place on the fabric, and note any unusual wear

2Inspection Checklist 2/2019

�ermostat setting value:

Inside temperature

Outside temperature

Fan belt tension

Fans

Motor

Bearings

Lubrication

Dampers

Burner motor value:

value:

Induced draft fan

INSPECTION POINT INITIALS

Standby

Engine oil level value:

Battery charge

Fuel level/condition value:

value:

Tests power failure:

switch:

manual:

10 mins operation:

Engine operating temp value:

Engine oil pressure value:

Voltage

Current draw phase 1:

phase 2:

phase 3:

phase 1:

phase 2:

phase 3:

Belt tension

Room exhaust fan

Transfer time value:

Sine wave frequency value:

Retransfer time value:

Engine running hours value:

INSPECTION POINT INITIALS

Fans

Belt tension

Motors

Bearings lubrication

Motors lubrication

Backdraft damper

Controls

INSPECTION POINT NOTESINITIALS

Operating pressure Note pressure reading

Pressure control Ensure on/o� control

3Inspection Checklist 2/2019

Lights

INSPECTION POINT NOTESINITIALS

Connections Check plugs, connection and switches

Fabric clearance Ensure �xtures are away from fabric

Sway cables Ensure cables are attached for hanging �xtures

Emergency exits

INSPECTION POINT NOTESINITIALS

Stress relief cables Ensure cables around doors are connected and tensioned, check cables, turnbuckles and shackles

Snow build-up Ensure fabric curtain and proximity are clear

Latches and hinges Ensure everything is secure and door closes tightly

Gaskets Ensure gaskets are attached and in good condition

4Inspection Checklist

Pedestrial air lock (PAL)

INSPECTION POINT NOTESINITIALS

Stress relief cables Ensure cables around doors are connected and tensioned, check cables, turnbuckles and shackles

Snow build-up Ensure fabric curtain and proximity are clear

Latches and hinges Ensure everything is secure and door closes tightly

Gaskets Ensure gaskets are attached and in good condition

Revolving doors (3- or 4-leaf )

INSPECTION POINT NOTESINITIALS

Stress relief cables Ensure cables around doors are connected and tensioned, check cables, turnbuckles and shackles

Snow build-up Ensure fabric curtain and proximity are clear

Latches and hinges Ensure everything is secure and door closes tightly

Operation Ensure doors spin smoothly

Gaskets Ensure gaskets on top, bottom and sides of all leafs are attached and in good condition

5Inspection Checklist

Vehicle air lock (VAL)

INSPECTION POINT NOTESINITIALS

Stress relief cables Ensure cables around air lock are connected and tensioned, check cables, turnbuckles and shackles

Certi�cation

INSPECTED BY

Name

Date

Snow build-up Ensure fabric curtain and proximity are clear

Door operation Ensure door and operators are operating properly

Door limits Ensure door clearance is adequate

Door safety Ensure safety bar and/or laser is functional

Air loss prevention Ensure both overhead doors are always closed when not in use

Signature