8
Place boiler in the selected location (as near chimney as
1.
possible.) Your boiler is shipped assembled. You need
only to install the Relief Valve and a drain line to carry
any water or steam to a drain.
NOTICE
Boiler rated at 50 psig maximum allowable
working pressure. Boiler provided with 30 psig
safety relief valve. Field source safety relief
valve for system pressures greater than 30
psig. Temperature Pressure Gauge and Air
Vent satisfactory for 30-50 psig operation.
!
WARNING
Burn and scald hazard. Safety relief valve
could discharge steam or hot water during
operation. Install discharge piping per these
instructions.
Install safety relief valve into ¾" pipe on top of boiler
2.
See fi gure 5.
Install safety relief valve with spindle in vertical
•
position.
Do not install shutoff valve between boiler and safety
•
relief valve.
Install discharge piping from safety relief valve.
•
¾" or larger pipe.
A.
Use pipe suitable for temperatures of 375° F or
B.
greater.
Individual boiler discharge piping shall be
C.
independent of other discharge piping.
Size and arrange discharge piping to avoid
D.
reducing safety relief valve relieving capacity
below minimum relief valve capacity stated on
rating plate.
Run pipe as short and straight as possible to
E.
location protecting user from scalding and
properly drain piping.
Install union, if used, close to safety relief valve
F.
outlet.
Install elbow(s), if used, close to safety relief
G.
valve outlet and downstream from union (if
used).
Terminate pipe with plain end (not threaded).
H.
Install Drain Valve in lower left side of boiler as marked.
3.
Connect Supply and Return Lines to boiler. The
4.
connections may require certain additional fi ttings and
parts, see (Figures 5 and 6). This boiler is equipped
with 1¼” supply and return connections on the right side
of the boiler.
SYSTEM PIPING
In connecting the cold water supply to the water inlet valve,
make sure that a clean water supply is available. When the
water supply is from a well or pump, a sand strainer should
be installed at the pump.
A hot water boiler installed above radiation level or as
required by the Authority having jurisdiction, must be
provided with a low water cutoff device either as a part of
the boiler or at the time of boiler installation. A periodic
inspection is necessary, as is fl ushing of fl oat type devices,
per manufactures specifi c instructions.
