The LAARS Rheos modulating “smart” hydronic heating boiler is a breakthrough in commercial heating system design. Now, for the first time, engineers and. Rheos, Installation and operation instructions for • Read online or download PDF • LAARS Rheos RHCV – Install and Operating Manual User Manual. Boston Heating Supply stocks and sells a large selection of Uponor, Rheem, Grundfos, Laars, Emmeti products and replacement parts – all at an affordable price.

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Modulating Gas Valve Heat Exchanger Coil Vertical Combustion Air Terminal Remote Water Heater Temperature Control Short Cycling – Boiler In addition, flexible horizontal or vertical venting options and low clearances allow placement virtually anywhere.

Water System Piping – Water Heater Freeze Protection – Boiler Short Cycling – Water Heater External Control Connections Filling The Boiler System Vertical Vent Terminal Now, for the first time, engineers and heating contractors can choose a single, high-efficiency, low-cost system for commercial installations requiring up to 2. Table of contents Table Of Contents Rheos Connection Sizes Gas, air, water and venting connections in inches.


Modulating “Smart” Boiler Saves Money!

Head loss calculations apply only to LAARS OEM heat exchangers and allow for thirty feet of piping the same size as the heater outlet and, typically, five to six fittings. Intake Combustion Air The Rheos saves fuel and runs more efficiently two ways: Submittal Data rhfos pump Submittal Data with built-in pump.

Water Connections – Rheos Water Heater Venting And Combustion Air High Gas Consumption Safety Dheos Valve Manual Reset High Limit Control Temperature Control – Water Heater In fact, the Rheos only takes up half the floor space of conventional units. Water Flow Requirements – Water Heater Gas Pressure Switches Normally Open Vent Valve Gas Supply And Piping Minimum Output Setting Side Wall Combustion Air Terminal Common Vent Test – Boilers Delayed Ignition – Possible Causes