PB Heat Peerless Combi 160, User Manual

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5 - INSTALLATION - Mounting & gas and water connections
5.6 - Condensate
disposal
WARNING! The condensate trap
must be connected to the boiler
per the following instructions or
combustion gases will enter the
room. This can result in excessive
levels of carbon monoxide which
can cause severe personal injury
or death!
This boiler produces water as a
byproduct of combustion. The boiler
is equipped with a condensate trap,
fi gure 1, item 46, for the evacuation
of condensate and to prevent the
leakage of combustion products.
The condensate trap drains through
pipe “C” shown in Figure 10. The
condensation disposal system must:

be connected to the domestic
waste disposal system by means
of an appropriate trap capable of
preventing the pressurization of the
condensate system and the return
of sewer gases (see fi gure 11);

comply with national and/or local
codes for condensate neutralizer
between pipe “C” of fi gure 10 and
the waste disposal system;

be carried out with a pipe with
an internal diameter equal to or
greater than
1/2 in , 13 mm ;

be installed in such a way so as to
avoid the freezing of the liquid;

never discharge into gutters or rain
collectors;

be properly pitched towards the
point of discharge avoiding high
points, which could place the
condensate system under pressure;
CAUTION!!! The condensate
drainage system is designed to
empty all the condensate produced
by one boiler only. Each boiler
must be equipped with its own
condensate drainage system or the
drainage system may malfunction.
5.7 - Near boiler
heating piping
components
1. Boiler system piping: boiler
system piping must be properly
sized. Reducing the pipe size can
restrict the fl ow rate through the
boiler, causing inadvertent high
limit shutdowns and poor system
performance.
2. Boiler system pump: Factory
Installed. Circulators must be
sized to meet the specifi ed fl ow
requirements of 5 GPM.
3. Indirect water heater circulating
pump: Field supplied. The
pump must be sized to meet
the specifi ed minimum fl ow
requirements of 5 GPM. Consult
the indirect water heater operating
guide to determine the fl ow
characteristics of the selected
product used.
4. Boiler isolation valves: Field
supplied. Full port ball valves
are required. Failure to use full
port ball valves could result in
restricted fl ow rate through the
boiler.
5. Domestic indirect hot water
isolation valves: Field supplied.
Full port ball valves are required.
Failure to use full port ball valves
could result in a restricted fl ow
rate through the boiler.
6. Anti scald mixing valves: Field
supplied. An anti scald mixing
valve is recommended (see Figure
16). It is recommended also when
an indirect water heater is present.
7. Unions: Field supplied.
Recommended for unit
serviceability.
8. Pressure relief valve: Factory
supplied. The pressure relief valve
is sized to ASME specifi cations.
9. Indirect Water heaters: Field
supplied. This boiler may be piped
to an indirect water heater to heat
domestic hot water with the space
to heat transfer medium. There
are two options when utilizing an
indirect water heater.
a. The space heating piping will
branch off to fl ow the space
heat transfer medium through a
single wall heat exchanger coil
inside the indirect water heater.
b. The indirect water heater is
connected to the system supply
piping. A pump controlled by
the boilers control will regulate
the fl ow of water through
the indirect water heater.
The indirect water heater’s
temperature will be regulated by
the boiler’s control. The boiler
is pre-confi gured to control the
operation of the DHW pump
with Domestic Hot Water
Prioritization programming.
CAUTION!- It is up to the installer
to ensure the minimum system fl ow
is not less then 5 GPM at any time.
WARNING!!! The National
Standard Plumbing Code, the
National Plumbing Code of Canada
and the Uniform Plumbing Code limit
the pressure of the heat transfer fl uid
to less then the minimum working
pressure of the potable water system
up to 30 psi maximum. Also, the
heat transfer fl uid must be water or
other non-toxic fl uid having a toxicity
of Class 1, as listed in the Clinical
Toxicology of Commercial Products,
5th Edition.
10. Filter: Field supplied. A Filter or
equivalent multipurpose strainer is
recommended at the return pipe
of the boiler to remove system
particles from older hydronic
systems and protect newer
systems.