| Designation |
Media |
Explanation |
Valid
and Meaningfull |
| G1 |
Water |
The source water supply from the earth loop. |
When either Ground
Source Heat Pump (GSHP) is running. |
| G2 |
Water |
The earth loop
return from the Water-Water Heat Pump (WWHP). |
When either GSHP is
running. |
| G3 |
Water |
The earth loop
return from the Water-Air Heat Pump (WAHP). |
When either GSHP is
running. |
| 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 WWHP. |
When the WWHP is
running. |
| D3 |
Water |
Water from the WWHP
being returned to the Storage Tank. |
When the WWHP 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. |
| D5 |
Water |
Return water from
the Radiant Slab Heat Exchanger to the Storage Tank. |
When one or more
radiant slab zones is active. |
| S1 |
Water |
Hot Water
Supply from the Radiant Slab Heat Exchanger to the
circulator pumps. |
When one or more
radiant slab zones is active. |
| S2,S3,S4,S5 |
Water |
Hot water supply
for each of the 4 Radiant Slab Zones. |
When the associated
Zone circulator is active. |
| S9,S8,S7,S6 |
Water |
Cool water return
from each of the 4 Radiant Slab Zones. |
When the associated
Zone circulator is active. |
| A1 |
Air |
Fresh Air from
outside the house being passed into the Energy Recovery Ventilator (ERV) |
All the time. |
| A2 |
Air |
Fresh air leaving
the ERV after exchanging energy with the stale exhaust air. |
All the time. |
| A3 |
Air |
Conditioned air
leaving the WAHP, being sent into the house. |
When the WAHP is
running to heat or cool the air. |
| A4 |
Air |
If the WAHP is not
running, this is the same air as described in A2. However, if the
WAHP is being used to condition the house air, then it's the air from the
house being returned to the WAHP to be conditioned. |
See note at left. |
| A5 |
Air |
Stale air from the
bathrooms and laundry being sent to the ERV for energy capture. |
All the time. |
| A6 |
Air |
Stale air being
exhausted to the outside after exchanging energy with the incoming fresh
air in the ERV. |
All the time. |