The reliable and effective RPB series Evaporative Air Conditioners are proven performers for heavy-duty industrial and commercial cooling. They have long been preferred by mechanical contractors for their outstanding reliability and cost-effectiveness. Installed in a myriad of applications, these coolers have provided low-cost, low-energy and maintenance cooling year after year.
The cabinet is constructed from marine grade aluminium incorporating channel section corner pillars, mounted on a heavy gauge base frame for structural stability. Many components have been powder-coated for extra corrosion protection. Cabinet fasteners are Stainless steel, Monel, Nylon and Aluminium.
The Blower wheel is a double inlet, multi-blade, forward curved, centrifugal type. Constructed from galvanized steel, the wheel is statically balanced. The blower shaft is mounted in plumber blocks with, self-aligning, single-row ball bearings.
The water reservoir is a one-piece Rotational Moulding of Polyethylene, providing a thick-walled, corrosion-free component with excellent sound-deadening properties.
Three phase motors are TEFC tropic proof, Aluminium frame, IP55 enclosures to AS 1359. Motor amperes can vary depending on the supplier.
The Three Phase Starter Assembly is prewired within the cooler and incorporates a dual contactor assembly for control of high and low speeds. Current overloads are fitted to both high and low-speed contactors. The enclosure is hose-proof to IP55 and incorporates an isolation switch. The wall control switch supplied incorporates the pump, fan, and speed variation mechanisms
Water supply connection is 1/2” BSP, this connects directly to a 1/2” NB standard-approved ball valve.
Cooling pads are Chillcell™ with a minimum operating saturation efficiency of 80%. The cooling pads are housed in UV-stabilized polypropylene pad frames, structurally very strong and guaranteed against corrosion for 25 years.
Coolers are factory set to run, “free discharge” at the motor rated current, unless operating conditions are specified.
Motor Ratings, Pulley and Belt sizes are nominal, and may vary slightly due to manufacturing tolerances. Larger & smaller motor pulleys and belts available on request.
Bleed off adjustment provided via external valve located at the corner pillar. A main power isolation switch is provided.