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E.
FILLING
CONDENSATE
TRAP
WITH
WATER
ON THE INITIAL
START UP THE CONDENSATE
TRAP
MUST BE MANUALLY
FILLED
WITH
WATER
The following are the steps required to initially fill the condensate trap for start up, these steps are
only required at the initial start up or if maintenance requires draining of the condensate trap:
1.
Disconnect
the vent condensate
drain line from the bottom of the vent tee on the boiler.
2.
Pour about 1 cup of cold tap water into the vent drain line with a proper funnel.
3.
Excess water should go through the overflow
and out through the condensate
drain line.
Verify proper operation
of the drain line (or external condensate
pump if used).
4.
Reinstall the vent drain line.
F. CHILLED
WATER
PIPING
The boiler, when used in connection
with a refrigeration
system,
must be installed so the chiller
medium
is piped in parallel with the boiler with appropriate
valves to prevent the chilled medium
from entering the boiler.
The boiler piping system of a hot water boiler connected
to heating coils is located in air handling
units where they may be exposed to refrigerated
air circulation
must be equipped with flow control
valves or other automatic
means to prevent gravity circulation
of the boiler water during cooling
cycle.
A. CONNECTIONS
AND TERMINATION
For boilers connected
to gas vents or chimneys,
vent installations
shall be in accordance
with part
7, Venting
of Equipment,
of the National
Fuel Gas Code, ANSI Z223. l-latest
revision,
CAN/CGA-B149.1
and B149.2, and applicable
provisions
of the local building codes.
Provisions
for combustion
and ventilation
air must be in accordance
with section 5.3, Air For
Combustion
and Ventilation,
of the National
Fuel Gas Code,ANSI
Z223. l-latest
revision,
CAN/CGA-B149.1
and B149.2,
or applicable
provisions
of the local building code.
These boilers require
a dedicated
direct vent system.
All air for combustion
is taken directly from
outdoors
through
the combustion
air intake pipe. All flue products
are discharged
to the outdoors
through the vent pipe.
1.
See Fig.9 & 10 for combustion
air and vent pipe roof and sidewall termination.
(Roof
termination
is preferred)
Combustion
air and vent pipes must terminate together
in same
atmospheric
pressure
zone as shown. Construction
through
which vent and air intake pipes
may be installed
is a maximum
24 inches, minimum
1_"thickness.
2.
Combustion
air and vent pipe fittings must conform to American
National
Standards
Institute
(ANSI) standards
and American
Society for Testing and Materials
(ASTM) standards
D1784
(schedule-40
CPVC),
D1785 (schedule-40
PVC), D2665 (PVC-DWV),
D2241 (SDR-21
and
SDR-26 PVC),
D2661 (ABS-DWV),
or F628 (schedule-40
ABS).
Pipe cement and primer
must conform to ASTM standards
D2564 (PVC) or D2235 (ABS).
2O
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