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14.2.4 Distribution Pipe Finishing Duct
4 flat pieces are shipped inside each furnace (See "as
shipped" in Diagram 14.3). The pieces are bent by
hand into a u-shape as shown in the diagram above.
2 pcs combine to form a rectangle. There are 4 flat
pieces which can be used to form 2 rectangles. These
pipe duct rectangles fit into the 2 cutouts at the rear
of the furnace and can be used as a form for pouring
grouting and/or insulation around the distribution
pipes to finish the connection from the furnace bottom
to the furnace pad. Use is optional, different installers
use different techniques for finishing the connection.
Finished connection must be mouse- and rodent-
proof.
14.3 Heat Exchanger Sizing
Polar Furnace recommends that a heat exchanger is
used to separate the outdoor "open" system from the
indoor "closed" system (See Diagram 14.9). A heat
exchanger is strongly recommended in larger systems
(see Diagram 14.10) and when a back up boiler is
installed on one of the distribution loops (see Diagram
14.10 & 14.11). Consult your dealer, or the factory
before selecting a heat exchanger for the distribution
loop(s).
For service and support on your Polar Furnace contact your local dealer
SECTION 14: Plumbing
14.4 Boiler Protection Valve
Maintenance
The Connect-EZ assembly includes a boiler
protection valve which is an important component in
ensuring normal service life for the heater and needs
to be inspected and cleaned annually to ensure that the
valve is functioning normally.
14.4.1 Safety Instructions
!! CAUTION!! Water temperatures higher than
100˚F can be dangerous. During maintenance of the
boiler protection valve take the necessary precautions
to insure that such temperature do not endanger
people.
!! CAUTION!! Assembly and disassembly of the
boiler protection valve should always be conducted
when the system is COLD.
!! CAUTION!! If the boiler protection valve is not
maintained properly, according to the instructions
contained in this manual, it may not operate properly
resulting in damage to the boiler and other equipment.
To access the boiler protection valve for maintenance
remove the cover from the supply/return manifold
assembly (Diagram 14.1).
Inspect the valve internal components
before each heating season or at least
once a year. Every 2 years replace
Diagram 14.3–Distribution
Pipe Finishing Duct
47
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