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IX. Hydronic Piping
AMP boilers are designed to operate in a closed
A. Piping System To Be Empleyed
loop pressurized system. Minimum pressure in
the boiler must be 14.5 psi (100 kpa). For proper
operation of the unit, the water flow rate through
the boiler must remain within the limits given in
Table 13.
It is required that boiler piping systems utilize
B. Recommended Piping Configuration
Primary/Secondary or fixed or variable flow
configuration (see Figures 15-18).
For Primary/Secondary piping configuration,
isolate the unit from the system via a closely
spaced tees (12 inches or 4 pipe diameter) to
ensure sufficent flow is maintained through the
boiler.
1. The flow rate through the primary loop is
maintained by installer provided circulator.
2. Other piping configurations may be used.
However, it is the responsibility of the installer
to size circulator(s) that could overcome
boiler's heat exchanger and system pressure
drops.
3. In adequate flow through the boiler can cause
high limit shutdowns, hot spots and localized
boiling which could severly damage the heat
exchanger.
4. For possible piping configuration, see section
"Hydronic Piping Configuration". These piping
arrangements can be used either for space
heating-only applications or space heating
C. Factory Supplied Water Manifold
Figure 13: Factory Supplied Manifold
Failure to properly pipe boiler may result in
improper operation and damage to the boiler
or structure.
Install boiler so that the gas ignition system
components
(dripping, spraying, rain, etc.) during appliance
operation and service (circulator replacement,
etc.).
Oxygen contamination of the boiler water
will cause corrosion of iron and steel boiler
components, and can lead to boiler failure.
Thermal
Solutions'
does not cover problems caused by oxygen
contamination of boiler water or scale (lime)
build-up caused by frequent addition of water.
Do not fill boiler with softened water to prevent
chloride contamination.
Installation is not complete unless a safety
relief valve is installed in the trapping located
on the water manifold or the supply piping.
Failure to maintain the flow through boiler
within specified limits could result in erratic
operation or premature boiler failure.
Where it is not possible to install a seperate
boiler loop, the system circulator must be
sized to ensure that the flow through boiler
stays within the defined parameters to prevent
overheating when the boiler is fired at it's full
rated input. Install a flow meter to measure the
flow, or fire the boiler at full rate and ensure
the boiler delta T does not exceed 45F.
It is required that boiler piping systems utilize
Primary/Secondary configurations. The use
of other piping configurations could result
in improper building and system flow rates
leading to boiler high limit shutdowns and
poor system performance.
Maintain 1" (24mm) clearance around all
uninsulated hot water pipes.
35
NOTICE
are
protected
from
Standard
Warranty
water
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