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Making Commissioning clear

Environmental Monitoring Services (EMS) - Sample Application

 

 

Temperature / Humidity Comfort Levels
Conditions Relative Humidity Acceptable Operating Temperatures (°C)

Summer (light clothing)
If 30%, then
If 50%, then
If 60%, then
23 - 27
23 - 26
23 - 26

Winter (warm clothing)
If 30%, then
If 50%, then
If 60%, then
20 - 24
20 - 24
20 - 23

Temperature (°C) Analysis

 

Temperature (°C) Verification After Corrections

 
 

Relative Humidity (%) Analysis

 

Relative Humidity (%) Verification After Corrections

 
 

Dew Point Comfort Levels
Dew Point (°C) Human perception
>21 Very humid, quite uncomfortable
18 - 21 Somewhat uncomfortable for most people at upper edge
16 - 18 OK for most, but all perceive the humidity at uper edge
13 -16 Comfortable
10 - 12 Very comfortable
<10 A bit dry for most

Dew Point (deg C) Analysis

 

Dew Point (°C) Verification After Corrections

 
 

CO2 Comfort Levels
CO2 (ppm) Human effects
>350-450 Normal outdoor level
><600 Acceptable levels
600-1000 Complaints of stiffness and odors
1000 ASHRAE and OSHA standards
1000-2500 General drowsiness
2500-5000 Adverse health effects expected

Indoor Air Quality (CO2 in PPM) Analysis

 

Indoor Air Quality (CO2 in PPM) Verification After Corrections