State Industries GS6 30 YBRT Series 200 Manuel D’Utilisation

18

• 

Be sure to follow the manual(s) shipped with the air 

handler system.

• 

This water heater is not to be used as a replacement 

for an existing boiler installation.

• 

Do not use with piping that has been treated with 

chromates, boiler seal or other chemicals and do not 

add any chemicals to the water heater piping.

• 

If the space heating system requires water 

temperatures in excess of 120°F, a tempering valve 

or an anti-scald device should be installed per its 

manufacturer’s instructions in the domestic (potable) 

hot water supply to limit the risk of scald injury.

• 

Pumps, valves, piping and fittings must be compatible 

with potable water.

• 

A properly installed flow control valve is required to 

prevent thermosiphoning. Thermosiphoning is the 

result of a continuous flow of water through the air 

handler circuit during the off cycle. Weeping (blow off) 

of the temperature and pressure relief valve (T & P) 

or higher than normal water temperatures are the first 

signs of thermosiphoning.

• 

The domestic hot water line from the water heater 

should be vertical past any tempering valve or supply 

line to the air handler to remove air bubbles from the 

system. Otherwise, these bubbles will be trapped in the 

air handler heat exchanger coil, reducing the efficiency.

• 

Do not connect the water heater to any system or 

components previously used with non-potable water 

heating appliances when used to supply potable water.

Some jurisdictions may require a backflow preventer in the 

incoming cold water line. This may cause the temperature 

and pressure relief valve on the water heater to discharge 

or weep due to expansion of the heated water. A 

diaphragm-type expansion tank suitable for potable water 

will normally eliminate this weeping condition. Please 

read and follow the manufacturer’s instructions for the 

installation of such tanks.

Also see Water System Piping for additional instructions 

on the safe and correct installation and operation of this 

water heater.

If this water heater is used as a solar storage heater 
or as a backup for the solar system, the water supply 
temperatures to the water heater tank may be in excess 
of 120°F. A tempering valve or other temperature limiting 
valve must be installed in the water supply line to limit the 
supply temperature to 120°F.
NOTE: Solar water heating systems can often supply 
water with temperatures exceeding 180°F and may result 
in water heater malfunction.