History of Performance
P-K COMPACT® semi-instantaneous water heaters have performed reliably, providing long, trouble-free operation in thousands of installations in all types of commercial, institutional and industrial buildings. Its present design, which focuses on a small heater that produces high hot water output at a closely controlled temperature, makes it the ideal water heater for any building owner.
Operating on steam, boiler water or high-temperature water, the P-K COMPACT® produces up to 250 gpm at 40°F to 140°F. Though the largest unit has a footprint of only 8 sq. ft., the heater can handle any building’s water heating requirements, either singly or via multiple-unit installation.
Constantly pumped circulation prevents scale formation and accumulation of foreign matter on the heating surfaces in most water conditions (water softening may be required with extremely hard water). The constant circulation also continually monitors water temperature, stabilizing temperature control at all draw rates.
Potable water in the shell contacts only nonferrous materials, preventing rusty water. The shell is constructed of solid 90-10 copper nickel, the premium corrosion-resistant material for potable water service. Standard heat exchanger construction is copper tubing, which will handle most water conditions. Copper nickel is available for unusual water conditions.
The P-K Compact water heater features the ANTICIPATOR integral control system which meters the heating medium demand to exact proportions of hot water requirements and regulates hot water outlet temperature to a close tolerance of ±4°F from the set point. Steam passes through the tubes of the heat exchanger bundle. The water is rapidly heated as it is directed over the tubes by segmental baffles inside a cylindrical wrapper. Above the wrapped tube bundle, minimum storage volume is provided to give the control sufficient time to produce the close temperature control.