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Quick Tips
Installation & Maintenance Reminders
Here are some friendly reminders to help you ensure peak performance from your Apollo HydroHeat system:
Remember to:
Flush out all supply and return water lines between the Apollo HydroHeat unit and the water heater after installation and before startup to eliminate flux, metal chips, sand or other particulate matter just as you would with any plumbing system.
Make sure you avoid:
Using Apollo HydroHeat with baseboard radiation or other system that has been served by non-potable water such as boiler water.
Using the Apollo system in conjunction with new finned tube baseboard radiation or convectors until you have properly determined the capacity of those units with water inlet temperatures of 140° F.
Using the Apollo system with piping that has been treated with chromates, boiler seal or other chemicals.
Adding boiler treatment or any chemicals to any Apollo HydroHeat piping, since the piping contains potable water.
Using Apollo HydroHeat with ferrous piping. The system should ONLY be installed with new piping that is suitable for potable water, such as copper or polybutylene. PVC piping should not be used.
Using any pumps, valves or fittings that are not completely compatible with potable water piping.
Using valves that may cause excessive restriction to water flow. Use full flow ball or gate valves only.
Using the Apollo HydroHeat system with any water heater not having a properly sized and installed Temperature & Pressure (T&P) relief valve. Some water heaters include factory-installed valves. Others must be field-installed. Follow the instructions of the water heater manufacturer and local codes when installing the T&P valve.
Altering the water heater controls, dip tube, relief valve fitting, etc. The Apollo system does not require any modification to a water heater. To do so may void the manufacturer’s warranty.
Turning the water heater thermostat all the way to HIGH. Properly applied Apollo systems are designed to provide adequate heat with water heater temperatures set at MEDIUM (135 º 140° F). If conditions do require a higher water heater temperature setting, a mixing valve must be installed for domestic water use. Read the instructions included with the mixing valve to assure proper installation.
Installing HydroHeat piping in any manner except as shown in the Apollo instruction manual.
Some jurisdictions may require a backflow preventer in the incoming cold water line to the water heater. In such cases, the Temperature & Pressure valve of the water heater may weep or relieve due to expansion of the water when heated. This would occur even if an Apollo unit were not installed. A small diaphragm-type expansion tank (such as WATERGUARD™) will normally eliminate the weeping condition. Please read and follow the manufacturer’s instructions for installations of such tanks.
Some jurisdictions prohibit the use of 50/50 solder in potable water lines. Use only solders permitted by your local plumbing code.
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