Drain Piping - Kenmore K90-150 Owner's Manual

but leave an air gap between piping and drain.
No shutoffof any descriptionshall be placed be-
tween safety relief valve and the boiler, or on the
dischargepipes betweensuchsafetyvalveandthe
atmosphere. Installationof the safety relief valve
shall conformto ANSl/ASME Boiler and Pressure
VesselCode, Section IV.The manufactureris not
responsiblefor anywater damage.
SINGLE ZONE BOILER PIPING
SUPPLY TD
VALVE
VALVE
CAN VENT-
SHUT OFF
LFEE_
VATER
PURGE RE_UCED PRESSURE
BACKFI.I]V PREVENTER
PRESSURE
SERVICE
RETURN FROH
SYSTEN
TANK
MULTIZONE BOILER PIPING
WITH CIRCULATORS
,GAE VAL_E
NOTE: When zoning with circulators, the furnished circulator pump
should be used as one of the zone pumps. Each stripped end of
the electrical wires for the circulator pump inside the junction box
should be taped or wire nutted to prevent short circuits. Unplug the
circulator pump wiring at the integrated boiler control.
MULTIZONE BOILER PIPING
WITH ZONE VALVES
The packaged boiler unit is set up to receive 11¼"
NPT supply and return piping from top access.
frNiOTE: The circulator and isolation valves fur-_
pump
are
shed within a carton inside the boiler cabinet and can beJ
/
_nstalled at the installer preferred location. J
CONDENSATE DRAIN PIPING
lo INWJI_ ,¢m't
Condensate drain line to be pitched down to floor
drain at a minimum of '/_"per foot. An external con-
densate pump (not furnished) may be used if floor
drain is not available. The condensate pump must
be designed for flue gas condensate application.