American Aldes Aldes SIP Ventilation Design Guide

Section 2       Page 21
2.2 CONTINUOUS SUPPLY
• A fan brings in outside air directly 
•  Creates positive pressure in the building 
•  Can direct where the fresh air is introduced into habitable 
zonesCentral Supply Fan
Fresh Air 
Inlet
Air Flow
Air Infiltration
Positive Air  Pressure
Negative Air  Pressure
Supply Ventilation
Types of Equipment*
In-Line Filtering Fan                
(FSVS) In-Line Filtering/Distributing Fan 
(DSVS) Multi-Port Blending/Filtering Fan 
(BVS)
*Remote-mounted fans are...

Section 2       Page 22
2.3 BALANCED VENTILATION
• Brings in outside air directly and exhausts stale 
air simultaneously 
•  Creates neutral pressure in the building 
(depending on ducting) 
•  Good for source-contaminant removal and 
directing the distribution of fresh air introduction
•  A Heat or Energy Recovery balanced ventilator 
recovers from the exhaust air a portion of the 
energy used to heat and cool the building and 
transfers that energy to the fresh outside airSupply
Supply
Kitchen 
Range...

Section 2       Page 23
HRV/ERV Climate Zone Recommendations
HRV
HRV or ERV
ERV
Pros of Balanced Ventilation• HRV/ERV pays for itself in the long run through energy savings
•  Filters outside air directly
•  Quiet-to-silent operation
•  Neutral-to-slight pressure offset (if desired)
•  Addresses the requirement for bathroom exhaust (with limitations)
•  Can offset negative pressure from appliances and stack effect
Cons of Balanced Ventilation • Plumbing required for condensation drains (in HRV)
•  More...

Section 3       Page 24
SECTION 3 
CLIMATE DESIGN RECOMMENDATIONS
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003500480056004C0047004800510057004C0044004F00030036002C0033  

Section 3       Page 25
3.1 DESIGN RECOMMENDATIONS: CLIMATE ZONE 1
Climate Zone 1A, Very Hot/Humid – Also known as tropical. Temperature is constantly high and does 
not vary greatly from day to night. High heat and humidity levels make thunderstorms common.
Thermal Criteria: 9000 < CDD 50°F*
*CDD = Cooling Degree Days
Zone 1
Dry (B)
Moist (A)
Warm-
Humid
Marine 
(C)
Recommended Ventilation Solutions for Climate Zone 1
VZ-IAQ-ERV                                  
See Appendix  I, Table A-4 IAQ-BVS...

Section 3       Page 26
TYPICAL VENTILATION SCENARIOS IN SINGLE- AND MULTI-FAMILY HOMES: ZONE 1
• SCENARIO #1 EXISTING CONDITIONS
Central Ventilation System: No
Central AC/Heat: No  
Recommended Ventilation Modifications
OPTION A   
Install a fully ducted Energy Recovery Ventilator (VZ-IAQ-ERV) to provide general ventilation. 
Duct  to  bathrooms  and  kitchen  if  there  is  no  local  ventilation  already  in  place.  Ensure  the 
system  is  balanced  and  the  airflow  is  regulated  by  using  Zone...

Section 3       Page 27
Whole-House Continuous Supply Ventilation – See Ventergy® Series Continuous Duty 
IAQ Ventilation Kits in Appendix I, Tables A-6, A-7, and A-8.
Local Exhaust – See VZ, SBFK, and MBFK in Appendix I, Tables A-9, A-10, and A-11.
•  SCENARIO #3 EXISTING CONDITIONS
Central Ventilation System: No
Central AC/Heat: Yes 
  Recommended Ventilation Modifications
Ensure the existing ventilation system provides whole-house continuous ventilation, and that 
local exhaust ventilation meets...

Section 3       Page 28
Duct  to  bathrooms  and  kitchen  if  there  is  no  local  ventilation  already  in  place.  Ensure  the 
system  is  balanced  and  the  airflow  is  regulated  by  using  Zone  Register  Terminals  (ZRT), 
Constant Airflow Regulators (CAR), or balancing dampers.
See VentZone
® IAQ with Energy Recovery Kits in Appendix I, Table A-4.  
OPTION B  
Install a fully ducted supply ventilation system (IAQ-BVS, IAQ-DSVS, IAQ-FSVS) to provide 
continuous supply ventilation. Alternately,...

Section 3       Page 29
3.2 DESIGN RECOMMENDATIONS: CLIMATE ZONE 2
Climate Zone 2A, Hot/Humid  – Also  known  as  tropical.  Temperature  is  constantly  high  and  does  not 
vary greatly from day to night. High heat and humidity levels make thunderstorms common.
Thermal Criteria: 6300 < CDD 50°F  < 9000*
*CDD = Cooling Degree Days
Zone 2A
Dry (B) Moist (A)
Warm-
Humid
Marine 
(C)
Recommended Ventilation Solutions for Climate Zone 2A
VZ-IAQ-ERV                                  
See Appendix  I, Table...

Section 3       Page 30
Climate Zone 2B, Hot/Dry – Also known as deserts or semi-deserts. Transition areas between humid, 
tropical climates and warm, moderate climates. Characterized by low humidity levels (less than 50% RH) 
and high levels of solar radiation. Overall precipitation is typically low and often falls rapidly over a short 
period of time.
Thermal Criteria: 6300 < CDD 50°F < 9000*
*CDD = Cooling Degree Days
Zone 2B
Dry (B) Moist (A)
Warm-
Humid
Marine 
(C)
Recommended Ventilation Solutions...