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Condensing Boiler Panels (Stand Alone)
These stand alone panels work with most condensing boilers. The Type 1 panel provides only a secondary circulator, and works with condensing boilers that supply their own primary circulator. The Type 3 panel provides primary, secondary, and DHW circulators. Both panels include a 1-1/4" primary loop with air remover and expansion tank connection (no tank) as well as optional auto-fill assembly. All circulators are energy-saving 3 speed models, which enables the installer to adjust flows for optimal temperature drops. The entire panel is enclosed in a powder coated steel enclosure for a professional, appliance style appearance.

The 1-1/2" stainless steel distribution manifold is equipped with thermal actuators on each circuit, and can supply up to 4 gpm to each separate zone. Each zone has a balance valve and flow meter for precise flow balancing. A pressure differential bypass eliminates velocity noise and helps extend the life of the system components.

Standard equipment on the Condensing Boiler Panel includes:
    • Your choice of independently controlled Primary, Zone and DHW pumps, all pre-wired and tested
    • 1-1/4" copper primary and secondary piping, 1" copper DHW piping
    • Primary, secondary, and DHW circulators, pre-wired and tested (Secondary circulator only on Type 1)
    • High performance 1-1/4" micro-bubble air remover with expansion tank connection (tank not included) including a 10 ft piece of 3/8" Onix for mounting tank outside of enclosure
    • Isolation valves for easy servicing of circulators and easy air purging
    • Spring check valves in primary loop and DHW piping
    • 0-50 psi/60-320 ºF gauge • 1-1/2" stainless manifold with thermal actuators, balance valves, flow meters and pressure differential bypass
    • Zone actuator control, pre-wired and tested
    • 9 ft 120V power cord
    • Powder coated steel enclosure
    • Optional Auto-fill assembly (Watts 9-11S M3 pressure reducing valve and backflow preventer)
Manifold adapters are required to transition to the distribution piping. PEX, PAP, copper or Onix can be used for distribution from the panel to the radiant zones. Order manifold tube adapters separately.

The panel circulators are controlled by the boiler via field wiring. Outdoor reset, DHW priority and other features are dependent on the boiler control.

Maximum flow rate is approximately 22 gpm. Each Watts Radiant 2699 circulator is capable of providing approximately 15 gpm at 20 ft hd on high speed.

For more information, view:

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