6
ASDI
Installation, Operation and Maintenance Manual
– SECOND SUN – P/N 51856
1. Attach the provided tank heater mounting bands on to the tank at
63.5
inch centers as shown in Figure 2.
2. Level tank straps such that lower turnbuckle assemblies are as low on the tank as possible while still
allowing heater to clear the ground. Do not allow the heater lower edge to cover the tank invert (lowest
line of the tank bottom).
3. Ensure that the neoprene band holding the temperature switches is folded upward against the side of
heater and not under the edge of the heater since it will prevent the temperature switches from contacting
the tank surface properly.
4. Hook the bottom edge of the heater cover in to J-hooks and tighten the turnbuckles only enough so they
stay hooked into the cover. Insert the top J-hooks into the mounting holes on the upper side of the cover.
5. Make certain the heater side skirt extends outwards from the heater to seal against the outside of the
tank. Do not allow it to fold under the heater since it will prevent the heater from making full contact with
the tank.
6. Tighten the top turn buckles while supporting the heater until there is about 1.5 inch space remaining
between the top edge of heater and the turnbuckle assembly on the mounting band.
7. Connect the regulator assembly to the multi-valve (on top of the tank) that is connected to the vapor
space of the tank being heated.
8. Connect the high pressure line to the lower fitting on the
heater marked “
High Pressure Tank
Connection
”.
9. Connect the output of the regulator to the upper fitting on the side of the h
eater cover marked “
Low
Pressure Regulator Connection
”.
10. Close the on-off valve, located outsid
e the control cover, marked as “Low Pressure Regulator
Connection
”.
11. Open the isolation valve on the propane tank and check the installed plumbing for leaks.
12. Open the heater on-off valve and check for leaks in the remaining gas train.
13. Repair any leaks before proceeding with the installation.
14. Check both temperature switches for proper contact with the tank surface by looking from the side of the
controls cover.
15. The temperature switches should be in close contact over the full surface of the switch. Loosen the
turnbuckle on the control cover side for an easier inspection of the switches.
