1. CRITICAL: Connect the regulator assembly t o the multi‐valve (on top of the tank) that is connected to the
vapor space of the tank, and ensure the regulator is positioned above the vapor space.
2. Connect the high‐pressure tank line to the upper fitting on the heater marked "High Pressure Tank
Connection".
3. Connect the output of the regulator to the lower fitting on the side of the heater cover marked "Low
Pressure Regulator Connection".
4. In areas with poor gas quality, it is recommended to install a drip leg ahead of the on‐off valve, located
outside the control cover, marked as "Low Pressure Regulator Connection".
5. Close the on‐off valve.
6. Open the isolation valve on the Propane tank.
7. Purge the low‐pressure gas line and check the installed plumbing for leaks.
8. Open the heater on‐off valve and check for leaks in the remaining gas train.
9. Repair any leaks before proceeding with the installation.
10. Check both temperature switches for proper contact with the tank surface.
11. Set manifold pressure by inserting a pressure gauge into the Gas Valve pressure port and adjusting the
pressure using the adjustment screw located under the protective cap on the gas control valve. See
Figure 8.
12
Fig. 8
ASDI Operations and Maintenance – Second Sun – P/N 52793
Protective Cap and
Adjustment Screw