Table of Contents
Advertisement
9.5.2 Heating System
• Freeze protection products may be used for the
heating system. Freeze protection for new or
existing systems requires specially formulated
glycol, which contains inhibitors to prevent
the glycol from attacking the metallic system
components.
• Before using freeze protection products,
ensure that system fluid contains proper
glycol concentration and the inhibitor level is
appropriate. It is recommended that against
exceeding a 50% concentration of glycol.
• When using freeze protection products, the
system must be tested at least once a year, and as
recommended by the manufacturer of the glycol
solution.
• When using the freeze protection products,
allowance should be made for expansion of the
glycol solution.
NOTE Freeze damage is not covered by the
warranty.
When using freeze protection
products, it is recommended to
plug the Auto Feeder Water Inlet
Connection and set "Auto Feeder
Activation" OFF.
* Refer to page 63 for changing "Auto
Feeder Activation" Setting.
48
Connecting the Heating Pipe / Connecting the Condensate Drain
10 Connecting the
Condensate
Drain
Condensing Combi Boiler
• In order to ensure proper operation of this Combi
Boiler, need to install the condensate drain pipe
to drain acidic condensate which produces during
operation.
• The pH level of the condensate is approximately
2-3.
An external neutralizer must be installed on the
condensate drain piping prior to disposal when
required by local code or when the condensate
could cause damage.
NOTE Damage caused by improperly
handled condensate is not covered by
the Pavilion Limited Warranty.
Location of the condensate drain piping
In climates where temperature routinely reaches
below freezing, do not drain the condensate to the
outdoors.
If the condensate drain pipe freezes during cold
weather, the pipe will not drain condensate and the
Combi Boiler will stop operating.
Material of the condensate drain piping
Use plastic pipe, such as PVC, for the drain line.
NOTE Do not use steel, black iron, or any
other material which can corrode
when placed into contact with acidic
condensate.
Sizing of the condensate drain piping
In order to drain the condensate, a 1/2 in. threaded
fitting is provided at the base of the Combi Boiler.
NOTE Do not reduce the size of the fitting
or the condensate drain piping to less
than 1/2 in.
Long runs or applications where the nearest drain
is above the Combi Boiler
Require the use of a condensate pump.
Size the pump to allow for a maximum condensate
discharge of 2 GPH from the Combi Boiler.
Advertisement
Table of Contents
