Pool Dehumidification Systems Overview Overview 1. The Ontario Building Code 2. Ashrae Handbook Recommendations on swimming Pool Ventilation – Who is ASHRAE (American Society of Heating, Refrigerating, and Air-Conditioning Engineers) is an organization devoted to the advancement of indoor-environment- control technology in the heating, ventilation, and air conditioning (HVAC) industry. 4. The Current Systems and Problems we are Facing In our Hotels today. 3. CDC Aquatic Health Code 5. The Proposed Dehumidification Systems 6. Summary Of Systems and Operational Payback
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Pool Dehumidification Systems OverviewOverview1. The Ontario Building Code2. Ashrae Handbook Recommendations on swimming Pool Ventilation – Who is ASHRAE (American Society of Heating,Refrigerating, and Air-Conditioning Engineers) is an organization devoted to the advancement of indoor-environment-control technology in the heating, ventilation, and air conditioning (HVAC) industry.
4. The Current Systems and Problems we are Facing In our Hotels today.3. CDC Aquatic Health Code
5. The Proposed Dehumidification Systems6. Summary Of Systems and Operational Payback
The Ontario Building Code 2012
• Ontario Building Code 2012 –Section 6.2 Design And Installation• 6.2.1.1 Good Engineering Practise.• ( 1 ) Heating, Ventilating and Air Conditioning Systems, including refrigeration related systems, Shall Be Designed,
Constructed and installed to conform to good engineering practice appropriate to the circumstances such as described in,(a) The ASHRAE Handbooks as follows:• (i) Fundamentals,• (ii) Refrigeration,• (iii) Hvac Applications ,• (iv) Hvac Systems and Equipment, and• (v) ANSI/ASHRAE/IESNA 90.1 “ Energy Standard for Buildings Expect Low Rise Residential buildings”
Ashrae and CDC Aquatic Health CodeHealth issues related to indoor pool use and associated poor water and air quality are increasingly being documented. TheVentilation Module is a first step towards improving air quality at indoor aquatic facilities and reducing associated healtheffects. The Ventilation Module contains requirements for new or modified construction that include1) Increased make-up air required in addition to that required in the ASHRAE 62 standard for indoor pools.2) Determination of the extra make-up air needed based on the indoor venue water use type (e.g., flat water, agitated water,or hot water) and venue or deck patron density (square feet/person).3) Inclusion in calculations of additional make-up air from surge tanks or gutters that introduce fresh air.4) Development and implementation of plans to reduce combined chlorine compounds in indoor aquatic facilities and informfacility patrons of their impact on building air quality.4.0 Design Standards and Construction1. Purpose 4.6.2.1.1 - AQUATIC FACILITY building ventilation systems shall be designed, constructed, and installed toprotect the health of the building’s occupants.2. Indoor Facilties 4.6.2.1.2 - Ventilation design requirements shall apply to a new or modified INDOOR AQUATIC FACILITYincluding the area of the building’s AQUATIC VENUES, the surrounding BATHER and spectator/stadium seating area,mechanical rooms, bath and locker rooms, and any associated rooms which have a direct opening to the AQUATICFACILITY.
CDC Aquatic Health CodeDesign Construction Standards Continued3. Ashrae 62 – 4.6.2.1.6. - AQUATIC FACILITY ventilation system design, construction, and installation shall comply with theAmerican Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) standard 62, Ventilation forAcceptable Indoor Air Quality, and/or applicable local CODEs with additional requirements as stated in section 4.6.2.1.7.4. Ashrae 62 – 4.6.2.1.7. - AQUATIC FACILITY ventilation system design, construction, and installation shall supply the freshair requirements outlined in Table 1, which includes the minimum air of ASHRAE 62.1 and/or applicable local CODEs PLUSthe additional amount of fresh air needed while the facility is occupied. These additional fresh air requirements depend onthe types and areas of AQUATIC VENUES, deck, and spectator/stadium seating areas making up the AQUATIC FACILITY asoutlined below:1) Flat Water - AQUATIC VENUE in which the water line is static except for movement made by users.2) Agitated Water - AQUATIC VENUE with mechanical means (AQUATIC FEATURES) to discharge, spray, or move the
water's surface above and/or below the static water line of the AQUATIC VENUE. Where there is no static water line,movement shall be considered above the deck plane.
3) Hot Water - AQUATIC VENUE with a temperature over 90 degrees Fahrenheit.4) The Density factor in Table 1 may be increased, but not reduced, if the intended use is different (i.e., a wading POOL is
a flat water venue and intended density will be 10 ft2 per person vs. a swimming POOL with a density of 20 ft2 perperson).
CDC Aquatic Health CodeDesign Construction Standards Continued5) For indoor AQUATIC FACILITIES with more than one type of AQUATIC VENUE, each AQUATIC VENUE area shall be calculatedindividually, added together with the total deck and/or spectator/stadium seating area requirements and then added to theminimum ASHRAE 62 air requirements.4.6.2.2 Air Quality – HealthINDOOR AQUATIC FACILITY ventilation system design shall provide air turnover rates that comply with ASHRAE 62.1 and/orapplicable local CODEs plus additional fresh air requirements specified in 4.6.2.1.7.INDOOR AQUATIC FACILITY ventilation system design shall provide fail safes to ensure that number of cubic feet per minute(cfm) of fresh air for an AQUATIC FACILITY is not less than the minimum calculated by the formula in 4.6.2.1.7 for the facilityduring times the facility is occupied.4.6.2.3 Humidity ControlRelative Humidity – 4.6.2.3.1. - INDOOR AQUATIC FACILITY ventilation system design shall be capable of maintaining therelative humidity average at less than 65% in a 24 hour period when the building is occupied.Air Temperature – 4.6.2.3.2. - 2 INDOOR AQUATIC FACILITY ventilation system design shall be capable of maintaining thefacility air temperature at no more than 8º above or 2º below the average AQUATIC VENUE water temperature, withoutincluding AQUATIC VENUES that exceed 90º F (32°C) in this design calculation.
CDC Aquatic Health CodeDesign Construction Standards ContinuedCondensation / Mold Control – 4.6.2.4.3. INDOOR AQUATIC FACILITY ventilation system design shall provide air flow thatwashes walls and windows with air to reduce condensation and mold growth.
The Current SystemTypical Sandman Hotel Pool Ventilation System HRV Unit with an Exhaust Fan in and an Exhaust Fan out System No PoolDehumidification System
Red Deer, Alberta. Occupancy Date 2000
Current Mechanical Ventilation System - 2 Fan System w/ No Dehumidification
Since 2009 have spent $24,000 just in the HRV unitIn 2011 the entire ceiling in the pool area had to be replaced. Pool was down for 3 weeks costing us business. Estimate atleast $10,000 for this job including labour. We have since replaced patches in the ceiling and have more areas currentlyneeding replaced.Hotel maintenance is continuously patching the ceiling in the pool and painting door frames etc.
The Current SystemTypical Sandman Hotel Pool Ventilation System HRV Unit with an Exhaust Fan in and an Exhaust Fan out System No PoolDehumidification System
Calgary Airport , Alberta. Occupancy Date 2003
As per your request here is what we have spent in the last 3 years on the getting the humidity under control in the pool.
Replacement Heat Recovery Unit in 2012- $5178Heat Exchanger Replacement in 2013 - $8226Heat exchanger repairs in 2014 - $1172humidifier Repairs in 2014 $3691New Thermostat & Coil in 2014 $431Replace all copper fitting due to rust/humidity in the pool mechanical room in 2014 - $2110Replacement motor & Thermostat for Heat Exchanger in 2015 - $1835
Total of $22643
This does not include the costs to replace different parts of the ceiling in the pool room
The Current SystemTypical Sandman Hotel Pool Ventilation System HRV Unit with an Exhaust Fan in and an Exhaust Fan out System No PoolDehumidification System
Vancouver City CentreFebruary:CWIP @ 3329.00 ( 226.00 for paint, 279.00 for rental equipment, 746.00 equipment, 1967.00 cement epoxy – preventive maintenance completed in Feb )Supplies @ 436.00March:CWIP @ 489.00 ( 179.00 concrete supplies, 310.00 lens and gasketsMay:CWIP @ 2834.00 ( replace hot tub jet flow motor)June:CWIP @ 2834.00 ( hot tub motor )November:CWIP @ 1318.00 ( 428.00 @ chlorine pump for pool, 890.00, flex flow pump for hot tub,
December:CWIP @ 1594.00 ( 1354.00 flow pump pool, 239.00 hot tub motor
Total:GRAND TOTAL : 13, 363.00
The Current SystemCurrent Mechanical System with Dehumidification Was operational Until Last year.
Victoria
Based on what I have found we have spent the following on the pool are due to the non functioning dehumidifier:
Repairs to Pool Dehumidifier:West Bay Mechanical $1100.00 Repair corroded coils in dehumidifier so that it can functionWest Bay Mechanical $814.76 Repair valves. coils in dehumidifier unitWest Bay Mechanical $140.18 Reset device, tripped due to the high humidityHoneywell $1700.78 Coils leaking, water reheat coil seized, installed new valves re-piped heat exchangers
Replace Rotted Metal Door Frame:ATech Doors $3400.00 Replace the entire frame and glassA-tech Doors $414.00 Matting for elevated steps from new frame
Painting and Caulking and Repairs:
Estimated at around $750.00 for paint touch ups and caulking as needed. As well as new metal kickplates etc from corrosion
Total Expenses in last 24 months = $8320.00
Currently do not have a Working humidifier
The Current SystemOther Various Properties
QuesnelVernonPrince George SandmanSignature Richmond Indoor Pool
Williams Lake- They cut a hole in the wall and installed a fan which blows outside. Also the installed a grate in the entry door. Serious issue with utility costs here
Proposed Dehumidification SystemSystem 1 – Dry O Tron – Pool Dehumidification System
Proposed Dehumidification SystemSystem 1 – Dry O Tron Savings
2. Standard Sandman Hotel Requirement (Oakville, Hamilton, Ottawa & St John’s )
1. Uncommon Hotel Requirement ( Kamloops )
1. Uncommon Unit = $ 15,520 Yearly Operating Cost Savings2. Standard Unit = $ 9,700 Yearly Operating Cost Savings
Proposed Dehumidification SystemSystem 2 – Soresco– Pool Dehumidification System Savings 1. Uncommon Unit = $ 18,900 Yearly Operating Cost Savings
2. Standard Unit = $ 9,450 Yearly Operating Cost Savings
Proposed Dehumidification SystemSystem 3 – PoolPak– Pool Dehumidification System
Total Cost of Ownership Over A 5 Year PeriodCurrent System HRV W/ NO
DehumidificationUnit Cost = $ 4200This unit is not capable ofsupplying 50-60% RH in thePool space
System is causing Mold andother Bacterial issueswithout having a properrelative humidity in thespace.Calgary Airport has spent$ 23,000 alone on unitreplacement alone
No Operational AdvantagesIn terms of payback
Dec O TronUpfront CostUnit Cost = $ 21,000This unit is capable ofsupplying 50-60% RHin the Pool space
$ 9,700 Yearly OperatingCost Savings w/ using thepool to preheat water
21,000 / 9,700 = 2.16 YearUnit Payback9700 x 5 Years = $ 48,500Operational savings
SorescoUpfront CostUnit Cost = $ 20,700This unit is capable ofsupplying 50-60% RHin the Pool space$ 9,450 Yearly OperatingCost Savings w/ using thepool to preheat water20,700 / 9,450 = 2.19 YearUnit Payback9450 x 5 Years = $ 47,250Operational savings
PoolPakUpfront CostUnit Cost = $ 29,891
This unit is capable ofsupplying 50-60% RH inthe Pool spaceOperating cost savingsnumbers unavailable
