Section Iv - Boiler Piping; General Piping Requirements; Pressure Relief Valve; Low Water Cutoff Device - Prestige Solo 110 Installation And Maintenance Manual

Boiler Piping

SECTION IV - Boiler Piping

General Piping Requirements

- All plumbing must meet or exceed all local,
state and national plumbing codes.
- Support all piping using hangers. DO N O T
support piping by the unit or its components.
- Use isolation valves to isolate system com-
ponents.
- Install unions for easy removal of the
PRESTIGE from the system piping.
WARNING
Use a two wrench method when tighten-
ing piping onto the boiler connections.
Use one wrench to prevent the boiler
piping from turning / twisting. Failure
to support the boiler piping and connec-
tions in this manner could cause damage
to the boiler and its components.

Pressure Relief Valve

1. The PRESTIGE is supplied with a 30 psi
pressure relief valve and must be piped
using the PRV connection as shown in Fig.
6 page 14.
2. To avoid potential water damage to the sur-
rounding area or potential scalding hazard
due to the operation of the relief valve, the
discharge piping:
- Must be connected to the discharge out-
let of the relief valve and directed to a
safe place of disposal.
- Length should be as short and direct as
possible. The size of the discharge line
should not be reduced, maintain the
same size as the outlet of the relief valve.
- Should be directed downward towards
the floor at all times. The piping should
terminate at least 6 inches above any
drain connection to allow clear visibili-
ty of the discharge.
- Should terminate with a plain end, not
with a threaded end. The material of
the piping should have a serviceable
temperature rating of 250ºF or greater.
- Should not be subject to conditions
where freezing could occur.
- Should not contain any shut-off valves
or obstructions.
should be piped between the boiler and
relief valve.
WARNING
Failure to comply with the guidelines on
installing the pressure relief valve and
discharge piping can result in personal
i n j u ry, death or substantial pro p e rt y
damage.

Low Water Cutoff Device

- The PRESTIGE is equipped with a factory
installed pressure switch type Low Water Cut
O ff device.
- The minimum operating system pressure
allowable with this device is 10 psig.
- Check local codes if a Low Water Cutoff
Device is required. If so, determine if this
device meets the requirements of the local
codes.
NOTICE
The PRESTIGE control system also uses
the sensing of the system water tempera-
t u res entering and exiting the heat
exchanger to provide protection against
low water conditions Where local codes
and jurisdiction do not accept a pressure
device for low water p rotection, the
jurisdictions may accept these PRES-
TIGE integral control functions as a
means of providing low water protection.
15
No shut-off valve