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  IsoTherm Replacement Assembly w/out Pump
IsoTherm Replacement Assembly w/out Pump
Click to enlarge
replacement for the Mixing Valve and Piping only, for the IsoTherm package.

Purchase this if you have a malfunctioning Mixing Valve but the pump still works.

The IsoTherm is a compact, efficient pre-piped and pre-wired pump and mixing valve control designed to connect to Watts Radiant's 1" Stainless Steel manifolds. The IsoTherm is designed to eliminate many jobsite hassles.

When combined with Watts Radiant's electrothermal actuators and acuator valve controls, a complete troublefree system is created, serving from 1 to 12 zones and delivering up to 50,000 BTU/h (maximum of 68,000 BTU/h with a minimum boiler temperature of 160°F).

With a standard temperature range of 113° to 140°F (45° to 60°C), many different installation types can be accommodated. The unit is factory set at 131°F (55°C). The valve is easily adjustable and locks in position with a "click-stop" device, preventing temperature drift.

Furthermore, a three-speed 3-1/25 HP pump comes pre-installed and pre-wired, taking the guesswork out of field installations. This unit is ready right out of the box!

For more info view:
IsoTherm Page from Watts Radiant Hydronic Accessories 2005 Catalog (104kb)
IsoTherm Manual (280kb)

Part Number: 81005231

Price: $371.78

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