Riverside Hydronics 400 - Condensate Drain, Trap & Disposal

M3 CONDENSING WATER BOILER
12
34-1115 12/15
5 CONDENSATE DRAIN, TRAP & DISPOSAL
The M3 boiler produces a significant amount of condensate. The condensate drain is under slightly positive flue
pressure; therefore the 3/4” CPVC condensate trap supplied with the product must always be used. This trap is sized
and designed to create a liquid barrier to prevent flue gases from escaping through the condensate drain into the
installed space. Prior to startup or after extended periods of non-use, manually fill the trap with water before
operating the boiler.
WARNING: The trap included with this unit must be installed and maintained as described in these
instructions and must be included as part of the condensate piping system. This trap is required to keep
hazardous products of combustion from continually entering the installed space where the condensate
piping terminates. Failure to properly install this trap can cause, personal injury, exposure to hazardous
materials or death.
1. Attach the supplied 3/4" CPVC condensate trap to the mating CPVC union connection on the boiler condensate
drain pipe located near the flue outlet. The trap must be rotated so the offset in the pipe aims down toward the
floor. Do not rotate the offset toward the ceiling. Do not use tools to tighten the CPVC union. Hand tighten the
CPVC union to seat the internal gasket.
2. Do not combine condensate drains from multiple condensing appliances into a single drain line. Route each
drain line into a drain suitable for condensate and make certain the end of the drain lines are not submerged or
otherwise blocked.
3. All condensate plumbing must be protected from freezing. Do not locate the condensate piping such that an ice
dam of frozen condensate can block condensate from leaving the outlet.
4. The condensate is only slightly acidic (3-5 PH), however, local codes may require it to be neutralized prior to
entering the drainage system. An optional, field installed, Condensate Neutralization System is available from
the factory.
5. Connect a condensate drain line or the Riverside Hydronics® Condensate Neutralization System to the barbed
hose connection, sized for 1/2" ID heavy wall Vinyl tubing rated for 170ºF or higher, located at the end of the
condensate trap. All piping from the condensate trap to the suitable drain must remain below the highest point
(top of the condensate outlet pipe) on the properly attached condensate trap.
Condensate Trap without Optional Condensate Neutralizer