CSVB Series II - Columbia Heating

!INSTALLATION SYSTEM PIPINGWARNINGBurn or Scald Hazard. Discharge line shall be installed to relief valve outlet connection to avoid burns,scalding, or water damage due to discharge of steam and/or hot water during operation.Discharge line shall:• connect to relief valve outlet and piped down to safe point of disposal. Check local codes for maximumdistance from floor or allowable safe point of discharge.• be of pipe size equal to or greater than that of the relief valve outlet over the entire length of dischargeline;• have no intervening shutoff valve between safety relief valve and discharge to atmosphere (do not plug orplace any obstruction in discharge line.• terminate freely to atmosphere where any discharge will be clearly visible and at no risk of freezing;• allow complete drainage of the valve and the discharge line;• be independently supported and securely anchored to avoid applied stress on the relief valve;• be as short and straight as possible;• terminate with plain end (not threaded);• be constructed of material suitable for exposure to temperatures of 375° F; or greater.Refer to local codes and appropriate ANSI/ASME Boiler and Pressure Vessel Code, Section IV, or Boiler,Pressure Vessel and Pressure Piping Code, CSA B51 for additional installation requirements.1. Refer to local codes and appropriate ASME Boilerand Pressure Vessel Code for additional installationrequirements.2. Install relief valve on 3/4” pipe nipple in tapped boileropening.A. Pipe discharge line following guidelines in precedingWarning. See Figure 2, Page 7 .B. Discharge line pipe size shall be equal or greaterthan that of relief valve outlet over entire lengthof discharge line with no intervening shutoff valvebetween safety relief valve and discharge toatmosphere.C. Discharge line shall terminate with plain end toatmosphere where any discharge will be clearlyvisible and is at no risk of freezing.D. Discharge line shall be independently supported toavoid applied stress on relief valve.E. Installation shall allow complete drainage of reliefvalve and discharge line.3. Install Drain Valve on lower left side of boiler asmarked.4. Install Temperature and Pressure Gauge into ¼”bushing threaded in tee furnished with supply piping.See Figure 3 & 4.5. Connect Supply and Return Lines to boiler. See Figures3 and 4. Connections may require certain additionalfittings and parts.Figure 2 - Safety Relief Valve Discharge PipingDISCHARGEPIPINGCheck local codesfor maximumdistance fromfloor or otherallowable safepoint of dischargeRELIEF VALVE7