
Solar Boiler™ Installation Manual (OG-300), page 7 of 14
IN.410.06.DEC/99
cold water
supply
AA
AA
AA
AAA
domestic
hot water
supply
close main water
supply valve
Tee connector
Ball valve #1
Tee connector
solar storage tank
auxiliary
DHW tank
Solar Boiler™
cold inlet
hot outlet
cold inlet
hot outlet
Ball valve #2
Ball valve #3
heat trap
heat trap
For normal solar operation:
• Ball valve #1 - close
• Ball valve #2 - open
• Ball valve #3 - open
mixing valve
13
14
15
cold water
supply
AAA
AAA
AAA
AAA
AAA
domestic
hot water
supply
close main water
supply valve
Tee connector
Ball valve #1
Tee connector
solar storage tank
auxiliary
DHW tank
Solar Boiler™
cold inlet
hot outlet
cold inlet
hot outlet
Setting up the Solar Boiler™ module,top connections
✍
❏
Using 3/4" copper tube,attach the top port of the Solar
Boiler module to the copper elbow fitting at the top of
the tank. In the diagram, the 3/4" coper tube replaces the
Flexhose™ which is no longer available.
❏
Wrap teflon tape around the short nipple of the top tank
tee, and thread it into the “hot outlet” port of the solar
storage tank. This tee becomes the “hot outlet” port of
the solar storage tank.
❏
Plumb the temperature - pressure relief valve to a drain.
(We recommend a plumber integrate the Solar Boiler™
and solar storage tank with your existing water heater.)
AA
AA
AA
solar storage tank
AAA
AAA
AA
56"
Flexhose™
rear view
AA
AA
AA
AA
Flexhose™ (56")
A
A
AA
AA
tank port
3/4" short
nipple
top tank tee
pressure/temperature
relief valve
hot outlet
Isolation Bypass preparation
✍
❏
Close the main cold water supply valve to the existing water
heater.
❏
Install two copper tees and a ball valve #1 as shown in the
diagram. Label this ball valve: BALL VALVE #1.
❏
Insulate all hot water pipes and the 5 feet of cold pipe
leading to the solar storage tank.
Isolation Bypass connection
✍
❏
Connect the main cold water supply to the cold inlet of the solar preheat
tank. Install a ball valve in this line. Label this valve: BALL VALVE #2.
❏
Connect the hot outlet of the solar storage tank to the cold water supply of
the existing water heater. Install a ball valve in this line, and label it:
BALL VALVE #3.
❏
Install two heat traps as shown in the diagram to minimize heat loss from
the solar storage tank. Please note that the domestic hot water supply line
must have a mixing valve installed as shown in the diagram.
❏
Insulate all hot water pipes.
•
For normal solar operation, the valves should be opened or closed as shown in the diagram.