2)
3)Do not attempt to manifold multiple KSZ boilers with gravity returns.
4)For installations with condensate or boiler feed pumps, follow the pump manufacturer’s piping instructions. Such systems generally do not require Hartford loops.
5)Do not use a check valve in place of, or in addition to, a Hartford loop on a gravity return system.
6)Pipe the fill connection from a clean source of cold water. When the water supply is from a well, make sure that a strainer is installed in the well system.
Piping Installation
1)Remove parts bag from boiler crate.
2)Install safety valve (spindle must be in vertical position) into the 3/4” tapping on top of the boiler.
3)Pipe the discharge of the safety relief valve to a location where water or steam will not create a hazard or cause property damage if the valve opens. The end of the discharge pipe must terminate in an unthreaded pipe. If the safety valve discharge is not piped to a drain, it must terminate at least 6 inches above the floor. The termination of the safety valve discharge piping must be in an area where it is not likely to become plugged by debris or subjected to freezing.
4)Install drain valve provided into the return piping.
5)Connect system supply and return to boiler. See Figure 10. All KSZ boilers use one supply riser and one return tapping.
DANGER
•PIPE RELIEF VALVE TO A SAFE LOCATION
•DO NOT INSTALL A VALVE IN THE RELIEF VALVE DISCHARGE LINE
•DO NOT MOVE RELIEF VALVE FROM FACTORY SPECIFIED LOCATION
•DO NOT PLUG RELIEF VALVE DISCHARGE
WRONG -
INTO TWO MAINS
WRONG - HEADER BULLHEADED
INTO
