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Home My WebLink AboutCOMCHECK 2 - 13-00142 - 141 S 1st W - NorthPointe Apts, Bldg B; 69 UnitsCOMcheck Software Version 3.9.2 Mechanical Compliance Certificate 2012 IECC Section 1: Project Information Project Type: New Construction Project Title : NORTHPOINTE APARTMENTS (BLDG. 'B') Construction Site: Owner/Agent: Designer/Contractor: REXBURG, ID 83440 GORDON NIELSON NIELSON ENGINEERING 156 NORTH 12TH AVE. POCATELLO, ID 83201 208.232.2577 sb@nielsoneng.com Section 2: General Information Building Location (for weather data): Rexburg, Idaho Climate Zone: 6b Section 3: Mechanical Systems List Quantity System Type & Description HVAC System 1 (Single Zone) : Heating: 1 each - Duct Furnace, Gas, Capacity = 60 kBtu/h Proposed Efficiency = 90.00% Ec, Required Efficiency = 80.00% Ec Cooling: 1 each - Split System, Capacity = 30 kBtu/h, Air -Cooled Condenser Proposed Efficiency = 13.00 SEER, Required Efficiency = 13.00 SEER Fan System: FAN SYSTEM 1 1 APARTMENT -- Compliance (Motor nameplate HP method) : Passes Fans: FAN 1 Supply, Constant Volume, 1200 CFM, 0 motor nameplate hp FAN 2 Supply, Single -Zone VAV, 200 CFM, 0 motor nameplate hp HVAC System 2 (Multiple -Zone) : Split System Heat Pump Heating Mode: Capacity = 40 kBtu/h, Proposed Efficiency = 7.70 HSPFRequired Efficiency = 7.70 HSPF Cooling Mode: Capacity = 36 kBtu/h, , No Economizer , Economizer exception: Humidity Requirements Proposed Efficiency = 13.00 SEERRequired Efficiency = 13.00 SEER Fan System: FAN SYSTEM 1 1 APARTMENT -- Compliance (Motor nameplate HP method) : Passes Fans: FAN 1 Supply, Constant Volume, 1200 CFM, 0 motor nameplate hp FAN 2 Supply, Single -Zone VAV, 200 CFM, 0 motor nameplate hp Section 4: Requirements Checklist Additional Efficiency Package Requirements: Ll 1. Full compliance with this energy code requires an 'additional efficiency package' be adopted. None has yet been specified. Requirements Specific To: HVAC System 1 : F1 1. Equipment minimum efficiency: Duct Furnace (Gas): 80.00 % Ec Lj 2. Equipment minimum efficiency: Split System: 13.00 SEER Requirements Specific To: HVAC System 2: 1. Equipment minimum efficiency: Heat Pump: 7.70 HSPF 13.00 SEER Project Title: NORTHPOINTE APARTMENTS (BLDG. 'B') Report date: 04/18/13 Data filename: G:\LOCAL\North Pointe Apartment 'B' - 1253\Docs\NORTHPOINTE-B.cck Page 1 of 3 ❑ 2. Minimum one temperature control device per zone ❑ 3. Integrated economizer is required for this location and system. ❑ 4. Systems serving more than one zone must be VAV systems Exception(s): ❑ Where pressure relationships must be maintained ❑ Zones or supply air systems with at least 75% of reheating/recooling energy site recovered or site solar ❑ Zones with humidity requirements for special processes ❑ Zones with cfm <300 and flow rate <10% of total design flow rate ❑ Outside air needed to meet IMC Chapter 4 ❑ 5. Controls capable of resetting supply air temp (SAT) by 25% of SAT -room temp difference Exception(s): ❑ Systems that prevent reheating, recooling or mixing of heated and cooled supply air ❑ Seventy five percent of the energy for reheating is from site -recovered or site solar energy sources. ❑ Zones with peak supply air quantities of 300 cfm (142 Us) or less. ❑ 6. VAV fans with static pressure sensors are located so that controller setpoint is no more than one-third of the total design static pressure. For ducts with major splits, at least one sensor is located on each major branch. ❑ 7. Systems with DDC of individual zone boxes reporting to the central control panel has static pressure setpoint reset based on the zone requiring the most pressure. Generic Requirements: Must be met by all systems to which the requirement is applicable: ❑ 1. Plant equipment and system capacity no greater than needed to meet loads Exception(s): ❑ Standby equipment automatically off when primary system is operating ❑ Multiple units controlled to sequence operation as a function of load ❑ 2. Minimum one temperature control device per system ❑ 3. Minimum one humidity control device per installed humidification/dehumidification system ❑ 4. Load calculations per ASHRAE/ACCA Standard 183. ❑ 5. Automatic Controls: Setback to 55°F (heat) and 85°F (cool); 7 -day clock, 2 -hour occupant override, 10 -hour backup Exception(s): ❑ Continuously operating zones ❑ 2 kW demand or less, submit calculations ❑ 6. Automatic start controls that can automatically adjust the daily start time of the HVAC system are provided for each system. ❑ 7. Outside -air source for ventilation; system capable of reducing OSA to required minimum ❑ 8. R-6 supply and return air duct insulation in unconditioned spaces R-8 supply and return air duct insulation outside the building R-8 insulation between ducts and the building exterior when ducts are part of a building assembly Exception(s): ❑ Ducts located within equipment ❑ Ducts with interior and exterior temperature difference not exceeding 15°F. ❑ 9. Ducts sealed - longitudinal seams on rigid ducts; transverse seams on all ducts; UL 181A or 181B tapes and mastics ❑ 10. Pipe serving heating and/or cooling systems is insulated per Section C403.2.8. General applicable insulation requirements are: Fluid Temp Range (°F) > 350 : < 1.0" pipe = 4.5" insulation, otherwise 5.0" insulation 251-350 : < 1.0" pipe = 3.0" insulation, < 1.5" pipe = 4.0" insulation, otherwise 4.5" insulation 201-250 : < 4.0" pipe = 2.5" insulation, otherwise 3.0" insulation 141-200 : < 1.5" pipe = 1.5" insulation, otherwise 2.0" insulation 105-140 : < 1.5" pipe = 1.0" insulation, otherwise 1.5" insulation 40-60 : < 1.5" pipe = 0.5" insulation, otherwise 1.0" insulation < 40 : < 1.0" pipe = 0.5" insulation, < 8.0" pipe = 1.0" insulation, otherwise 1.5" insulation Exception(s): ❑ Piping within HVAC equipment. ❑ Fluid temperatures between 60 and 105°F. ❑ Fluid not heated or cooled with renewable energy. ❑ Piping within room fan -coil (with AHR1440 rating) and unit ventilators (with AHR1840 rating). ❑ Strainers and values associated with piping <= 1.0". ❑ Direct buried piping with fluid temperatures <= 60°F. ❑ 11.0peration and maintenance manual provided to building owner ❑ 12.Thermostatic controls have 5°F deadband Project Title: NORTHPOINTE APARTMENTS (BLDG. 'B') Report date: 04/18/13 Data filename: G:\LOCAL\North Pointe Apartment'B' - 1253\Docs\N0RTHPOINTE-B.cck Page 2 of 3 Exception(s): ❑ Thermostats requiring manual changeover between heating and cooling 13. Demand control ventilation (DCV) present for high design occupancy areas (>25 person/1000 ft2 in spaces >500 ft2) and served by systems with any one of 1) an air -side economizer, 2) automatic modulating control of the outdoor air damper, or 3) a design outdoor airflow greater than 3000 cfm. Exception(s): ❑ Systems with heat recovery. F -I Multiple -zone systems without DDC of individual zones communicating with a central control panel. LJ Systems with a design outdoor airflow less than 1200 cfm. ❑ Spaces where the supply airflow rate minus any makeup or outgoing transfer air requirement is less than 1200 cfm. ❑ Ventilation for process loads only. F1 14.Total cooling capacity without economizers must be less than 300 kBtu/h. This project lists 66 kBtu/h capacity without economizers. ❑ 15. Motorized, automatic shutoff dampers required on exhaust and outdoor air supply openings Exception(s): LJ Gravity dampers acceptable in buildings <3 stories F -I 16.Automatic controls for freeze protection systems present ❑ 17. Each fan system has an energy recovery system when one of the following conditions are met: 30% >= POA < 40% AND DAF >= 11,000 cfm 40% >= POA < 50% AND DAF >= 5,500 cfm 50% >= POA < 60% AND DAF >= 4,500 cfm 60% >= POA < 70% AND DAF >= 3,500 cfm 70% >= POA < 80% AND DAF >= 2,500 cfm 80% > POA AND DAF >= 1,500 cfm where POA = Percent outdoor air at full design airflow rate and DAF = Design supply fan airflow rate Exception(s): F] Laboratory fume hood systems with a total exhaust rate <= 5000 cfm. ❑ Systems serving spaces that are not cooled and heated to <60°F. F1 Systems with more than 60% of the outdoor heating energy is provided from site -recovered or site solar energy. LJ Systems exhausting toxic, flammable, paint, or corrosive fumes or dust. ❑ Systems requiring dehumidification with cooling coil energy recovery in series with the cooling coil. ❑ Systems expected to operate < 20 hrs per week when outdoor air percentage >= 30%. ❑ Where the largest exhaust source is less than 75% of the design outdoor airflow. ❑ 18. Mechanical systems shall meet commissioning and completion requirements in Section C408.2. Section 5: Compliance Statement Compliance Statement: The proposed mechanical design represented in this document is consistent with the building plans, specifications and other calculations submitted with this permit application. The proposed mechanical systems have been designed to meet the 2012 IECC, Chapter 8, requirements in C Mcheck Version 3.9.2 and to comply with the mandatory requi ements in the Requirements Checklist. Name - Title ian ture Date Section 6: Post Construction Co&pUa'nce Statement ❑ HVAC record drawings of the actual installation, system capacities, calibration information, and performance data for each equipment provided to the owner. Fj HVAC O&M documents for all mechanical equipment and system provided to the owner by the mechanical contractor. F -i Written HVAC balancing and operations report provided to the owner. The above post construction requirements have been completed, Principal Mechanical Designer -Name Signature Date Project Title: NORTHPOINTE APARTMENTS (BLDG. 'B') Report date: 04/18/13 Data filename: G:\LOCAL\NorthPointe Apartment'B' - 1253\Docs\N0RTHPOINTE-B.cck Page 3 of 3