The Need
“John, and Donna are building a Deltec home built in Hamilton OH. They plan on mini-splits and will have a separately ducted ERV. ” They are most likely planning on seeking Zero Energy Ready Certification.”
Full HVAC Design – Consultant will design the appropriate HVAC systems. Deliverables will include:
- Manual J Load Calculation: Complete an energy model to determine the amount of heating and cooling requirements the building has. We will generate reports that will show the heating and cooling loads for all zones within the building.
- Manual S Equipment Selection: Based on the calculations generated from the energy model, we will select properly sized equipment, and will produce a written specification for all heating, ventilation, and air conditioning equipment. This will also include performance and installation specifications for the duct system.
- Manual D, Duct Design: For any ducted systems in the building, we will design and lay out a properly sized duct system, including registers, to fit within the structure of the building, which will be represented by a single-line diagrammatic scalable floor plan. For ductless systems, we will address distribution issues to ensure that each zone gets the proper amount of heating and cooling.
- Mechanical ventilation requirements and specification (For low load designs Ventilation system may serve as distribution system)
- All needed LEED and/or Energy Star HVAC Design Documentation Typical Single Family Design Package
Thermal Performance Design:
- Wall insulation: R-28: exterior 1″ XPS Rigid foam board, interior between studs: 1.5″ closed cell spray foam, 4″ blown in cellulose
- Ceiling: no attic: R-45: interior between and over truss rafters: 7″ closed cell spray foam
- Rim board, sill plate, top foundation area: R-29: interior 4.5″ closed cell spray foam
- Exterior Walls: R-29 4.5″ closed cell spray foam
- Basement poured foundation walls & under basement floor slab: exterior R-17 @ 40F 2 layers of 2″ rigid EPS Foam board offset to cover joints
- Exterior Door: Energy Star Therma Tru door: </= 0.27 U-factor
- Exterior Windows: Marvin Integrity (Elevate) -Casement -0.27 0.20 Picture- 0.26 0.23
- Infiltration: 0.5 ACH50
Entire House:
- Heating: 19568 BTUH
- Cooling: 9707 BTUH
1St Floor Zone:
- Heating: 12573 BTUH
- Cooling: 7184 BTUH
Basement Zone:
- Heating: 7058 BTUH
- Cooling: 1851 BTUH
What We Designed/ Specified
Configure
- Heating and Cooling (Optional Auxiliary Heating):
- Basement Zone – Mitsubishi Electric-Trane 6,000 BTU/H Deluxe Wall-Mounted Indoor Unit/ 6,000 BTU/H Hyper Heating Outdoor Condenser
- 1st Floor Zone– Mitsubishi Electric-Trane12,000 BTU/H Deluxe Wall-Mounted Indoor Unit/ 12,000 BTU/H Hyper Heating Outdoor Condenser
- Distribution and Ventilation – Zehnder ComfoAir Q 350 Independently Ducted ERV
- Auxiliary Dehumidification – 1 Per Floor, Santa Fe Ultra MD 33 In Wall Ductless Recirculating Dehumidifer
- Controls:
- Heating and Cooling Equipment controled by Mitsubishi Kumo Cloud. Dehumidifcation and ERV have Independent controls.
