loop follow these steps:
8.1 Turn the controller to the “off” position
(COMPONENT #18, FIGURES 15A; 15B;
16A; 16B; 17A; 17B ).
8.2 Connect one end of a garden hose to
the purge/drain valve (COMPONENT #11
FIGURES 15A; 15B; 16A; 16B; 17A; 17B )
and place the other end in a five gallon bucket.
Open both the purge/drain valve and the upper
fill valve and gravity will drain the heat trans-
fer fluid into the bucket. If the HTF is being
disposed of, a licensed recycler, reclaimer or
incinerator must dispose of the HTF.
WARNING: DO NOT DUMP DOWFROST
HD INTO A STORM SEWER, ON THE
GROUND OR INTO ANY BODY OF
WATER. BE CAREFUL. THE HTF MAY
BE EXTREMELY HOT!
8.3 If the electric water heater is installed with
an optional time clock controlling the element
make sure the clock is not preset to go “ON”
during your absence. If you have a time switch,
deactivate per clock’s instruction manual.
When you return home contact your service
contractor to recharge the system with HTF.
After the system has been recharged, set the
controller to the “automatic” position. Reset
the time switch if necessary.
P.25
30
HOT SUPPLY
LINE TO FIXTURES
24
25
26
3
1
2
15
16
17
18
21
FEED
RETURN
PIPE INSULATION
ROOF JACKS
8
1. SunEarth Solar Col-
lector(s)
2. Collector Sensor
3.
Option Tank and Line
Thermometers
4.
Check Valve
5.
Isolation Ball Valve
6.
Pressure Relief Valve
7. Pressure Gauge
8.
Expansion Tank
10.
Isolation Ball Valve
15.
Flush Valve
16.
Tank Sensor
17.
Cold Water Dip Tube
18.
Differential Temper-
ature Controller
19. Heat Exchanger
20.
Anode Rod
21.
Heating Element &
Tank Thermostat
22.
Temperature and
Pressure Relief Valve
23.
Cold Water Supply
Line Isolation Ball
Valve
24.
Ball Valve
25.
Isolation Ball Valve
26.
Ball Valve
30.
Temperature and
Pressure Relief Valve
32.
Mixing Valve
33.
Optional Time Switch
34. SunEarth Solar-
Station
32
T1
3, 10
11, 12
3, 4
9
13
6
7
10
5
T2
COLD SUPPLY
LINE
23
TANKLESS BACKUP W/ SOLAR STATION
SYSTEM SCHEMATIC
fig. 17b
