Pool Dehumidification Systems Overview
Overview
1. The Ontario Building Code
2. Ashrae Handbook Recommendations on swimmin...
The Ontario Building Code 2012
• Ontario Building Code 2012 –Section 6.2 Design And Installation
• 6.2.1.1 Good Engineerin...
Ashrae and CDC Aquatic Health Code
Health issues related to indoor pool use and associated poor water and air quality are ...
CDC Aquatic Health Code
Design Construction Standards Continued
3. Ashrae 62 – 4.6.2.1.6. - AQUATIC FACILITY ventilation s...
CDC Aquatic Health Code
Design Construction Standards Continued
5) For indoor AQUATIC FACILITIES with more than one type o...
CDC Aquatic Health Code
Design Construction Standards Continued
Condensation / Mold Control – 4.6.2.4.3. INDOOR AQUATIC FA...
The Current System
Typical Sandman Hotel Pool Ventilation System HRV Unit with an Exhaust Fan in and an Exhaust Fan out Sy...
The Current System
Typical Sandman Hotel Pool Ventilation System HRV Unit with an Exhaust Fan in and an Exhaust Fan out Sy...
The Current System
Typical Sandman Hotel Pool Ventilation System HRV Unit with an Exhaust Fan in and an Exhaust Fan out Sy...
The Current System
Current Mechanical System with Dehumidification Was operational Until Last year.
Victoria
Based on what...
The Current System
Other Various Properties
Quesnel
Vernon
Prince George Sandman
Signature Richmond Indoor Pool
Williams L...
Proposed Dehumidification System
System 1 – Dry O Tron – Pool Dehumidification System
Proposed Dehumidification System
System 1 – Dry O Tron Savings
2. Standard Sandman Hotel Requirement (
Oakville, Hamilton,...
Proposed Dehumidification System
System 2 – Soresco– Pool Dehumidification System Savings 1. Uncommon Unit = $ 18,900 Year...
Proposed Dehumidification System
System 3 – PoolPak– Pool Dehumidification System
Total Cost of Ownership Over A 5 Year Period
Current System HRV W/ NO
Dehumidification
Unit Cost = $ 4200
This unit is not...
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Pool Dehumidification Systems Overview

Published on: Mar 4, 2016
Source: www.slideshare.net


Transcripts - Pool Dehumidification Systems Overview

  • 1. 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
  • 2. 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”
  • 3. Ashrae and CDC Aquatic Health Code Health issues related to indoor pool use and associated poor water and air quality are increasingly being documented. The Ventilation Module is a first step towards improving air quality at indoor aquatic facilities and reducing associated health effects. The Ventilation Module contains requirements for new or modified construction that include 1) 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 inform facility patrons of their impact on building air quality. 4.0 Design Standards and Construction 1. Purpose 4.6.2.1.1 - AQUATIC FACILITY building ventilation systems shall be designed, constructed, and installed to protect 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 FACILITY including 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 AQUATIC FACILITY.
  • 4. CDC Aquatic Health Code Design Construction Standards Continued 3. Ashrae 62 – 4.6.2.1.6. - AQUATIC FACILITY ventilation system design, construction, and installation shall comply with the American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) standard 62, Ventilation for Acceptable 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 fresh air requirements outlined in Table 1, which includes the minimum air of ASHRAE 62.1 and/or applicable local CODEs PLUS the additional amount of fresh air needed while the facility is occupied. These additional fresh air requirements depend on the types and areas of AQUATIC VENUES, deck, and spectator/stadium seating areas making up the AQUATIC FACILITY as outlined 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 per person).
  • 5. CDC Aquatic Health Code Design Construction Standards Continued 5) For indoor AQUATIC FACILITIES with more than one type of AQUATIC VENUE, each AQUATIC VENUE area shall be calculated individually, added together with the total deck and/or spectator/stadium seating area requirements and then added to the minimum ASHRAE 62 air requirements. 4.6.2.2 Air Quality – Health INDOOR AQUATIC FACILITY ventilation system design shall provide air turnover rates that comply with ASHRAE 62.1 and/or applicable 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 facility during times the facility is occupied. 4.6.2.3 Humidity Control Relative Humidity – 4.6.2.3.1. - INDOOR AQUATIC FACILITY ventilation system design shall be capable of maintaining the relative 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 the facility air temperature at no more than 8º above or 2º below the average AQUATIC VENUE water temperature, without including AQUATIC VENUES that exceed 90º F (32°C) in this design calculation.
  • 6. CDC Aquatic Health Code Design Construction Standards Continued Condensation / Mold Control – 4.6.2.4.3. INDOOR AQUATIC FACILITY ventilation system design shall provide air flow that washes walls and windows with air to reduce condensation and mold growth.
  • 7. The Current System Typical Sandman Hotel Pool Ventilation System HRV Unit with an Exhaust Fan in and an Exhaust Fan out System No Pool Dehumidification 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 unit In 2011 the entire ceiling in the pool area had to be replaced. Pool was down for 3 weeks costing us business. Estimate at least $10,000 for this job including labour. We have since replaced patches in the ceiling and have more areas currently needing replaced. Hotel maintenance is continuously patching the ceiling in the pool and painting door frames etc.
  • 8. The Current System Typical Sandman Hotel Pool Ventilation System HRV Unit with an Exhaust Fan in and an Exhaust Fan out System No Pool Dehumidification 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- $5178 Heat Exchanger Replacement in 2013 - $8226 Heat exchanger repairs in 2014 - $1172 humidifier Repairs in 2014 $3691 New Thermostat & Coil in 2014 $431 Replace all copper fitting due to rust/humidity in the pool mechanical room in 2014 - $2110 Replacement 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
  • 9. The Current System Typical Sandman Hotel Pool Ventilation System HRV Unit with an Exhaust Fan in and an Exhaust Fan out System No Pool Dehumidification System Vancouver City Centre February: 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 @ 436.00 March: CWIP @ 489.00 ( 179.00 concrete supplies, 310.00 lens and gaskets May: 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
  • 10. The Current System Current 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 function West Bay Mechanical $814.76 Repair valves. coils in dehumidifier unit West Bay Mechanical $140.18 Reset device, tripped due to the high humidity Honeywell $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 glass A-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
  • 11. The Current System Other Various Properties Quesnel Vernon Prince George Sandman Signature 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
  • 12. Proposed Dehumidification System System 1 – Dry O Tron – Pool Dehumidification System
  • 13. Proposed Dehumidification System System 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 Savings 2. Standard Unit = $ 9,700 Yearly Operating Cost Savings
  • 14. Proposed Dehumidification System System 2 – Soresco– Pool Dehumidification System Savings 1. Uncommon Unit = $ 18,900 Yearly Operating Cost Savings 2. Standard Unit = $ 9,450 Yearly Operating Cost Savings
  • 15. Proposed Dehumidification System System 3 – PoolPak– Pool Dehumidification System
  • 16. Total Cost of Ownership Over A 5 Year Period Current System HRV W/ NO Dehumidification Unit Cost = $ 4200 This unit is not capable of supplying 50-60% RH in the Pool space System is causing Mold and other Bacterial issues without having a proper relative humidity in the space. Calgary Airport has spent $ 23,000 alone on unit replacement alone No Operational Advantages In terms of payback Dec O Tron Upfront Cost Unit Cost = $ 21,000 This unit is capable of supplying 50-60% RH in the Pool space $ 9,700 Yearly Operating Cost Savings w/ using the pool to preheat water 21,000 / 9,700 = 2.16 Year Unit Payback 9700 x 5 Years = $ 48,500 Operational savings Soresco Upfront Cost Unit Cost = $ 20,700 This unit is capable of supplying 50-60% RH in the Pool space $ 9,450 Yearly Operating Cost Savings w/ using the pool to preheat water 20,700 / 9,450 = 2.19 Year Unit Payback 9450 x 5 Years = $ 47,250 Operational savings PoolPak Upfront Cost Unit Cost = $ 29,891 This unit is capable of supplying 50-60% RH in the Pool space Operating cost savings numbers unavailable Net Savings 48,500-21,000= $ 27,500 Net Savings 47,250-21,000= $ 26,250

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