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Trend Graphs for my Geothermal HVAC system.
View this page in conjunction with my Real-Time monitoring page.
Live environment diagram. Updated once a minute.
Interior Zone Temperatures (T1-T4).
Black-T1: Garage,
Blue-T2: Office,
Red-T3: Living Room,
Green-T4: Master Bed.
Violet-A0: Outside Air Sensor.
Orange-P3: Daily accumulated Power Usage (KWH)
Utility power load in Real Watts (P2).
This chart measures the combined power draw from the Utility Room. Typical loads are:
Baseline (50W), ERV (60W), Well Pump (1.8KW), Lighting (360W),
W-A GSHP (3KW), W-W GSHP (3-4KW), Slab Circulators (70W ea),
Radiant Heat Zone Supply/Return (S2/6,3/7,4/8 & S5/9).
These are the radiant slab loop manifold temperatures. Solid Lines are floor supply, Dashed lines are returns.
Black-S2,6: Garage,
Blue-S3,7: Office,
Red-S4,8: Living Room,
Green-S5,9: Master Bed.
Domestic Water Temperatures (D1-D4).
Blue-D2: GSHP Load In,
Red-D3: GSHP Load Out,
Green-D7: Upper Tank Temp.,
Orange-D6: Lower Tank Temp.
Black-G4: GSHP Src In.
Violet-G5: GSHP Src Out.
Ventilation Air Temperatures. (A1,2,5,6)
Blue-A1: Outside Air entering the ERV.
Cyan-A2: Outside Air leaving the ERV.
Magenta-A5: Inside Air entering the ERV.
Red-A6: Inside Air leaving the ERV.
Black-A0: Outside Air
Since this system is designed to conserve energy, system components are only
energized when they are needed. Consequently many of the temperature
values are only valid when a system is active and pumping air or water.
Each temperature in the diagram above is prefixed with a alpha-numeric
designation. These are defined below, along with their periods of
validity.
Designation |
Media |
Explanation |
Valid
and Meaningful |
D1 |
Water |
Fresh drinking
water from the artesian well. |
When hot or cold
water is being used in the house. |
D2 |
Water |
Water from the
Storage tank going to be heated in the W-WHP. |
When the
W-WHP is
running. |
D3 |
Water |
Water from the
W-WHP
being returned to the Storage Tank. |
When the
W-WHP is
running. |
D4 |
Water |
Domestic Hot Water
from the Storage Tank. |
When either DHW is
being used in the house, OR, when one or more radiant slab zones is
active. |
A0 |
Air |
External Air Temp Sensor |
All the time. |
A1 |
Air |
Fresh Air from
outside the house being passed into the Energy Recovery Ventilator (ERV) |
When ERV is running. |
A2 |
Air |
Fresh air leaving
the ERV after exchanging energy with the stale exhaust air. |
When ERV is running. |
A5 |
Air |
Stale air from the
bathrooms and laundry being sent to the ERV for energy capture. |
When ERV is running. |
A6 |
Air |
Stale air being
exhausted to the outside after exchanging energy with the incoming fresh
air in the ERV. |
When ERV is running. |
© 2000-2018, Phil and Lisa's relaxed lifestyle home.
An exercise in Energy Smart, Not So Big living.
www.OurCoolHouse.com - Ideas@OurCoolHouse.com
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This site is all about building a cool, energy efficient house,
that makes maximum use of earth sheltered design, passive solar heating and cooling,
geothermal exchange energy management, and right sizing of the house for it's designated use.
The home's placement is on a south-facing hillside in Deep Creek Lake, Maryland.
This site describes the design process, the technologies used and the expected results.
We also have a comprehensive Links Page for anyone who is also interested in designing a
similar project.
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