Install Instructions

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Z-VENT

Commercial/Industrial

MODEL SVE SERIES IV

INSTALLATION AND MAINTENANCE INSTRUCTIONS

3”- 12” SINGLE AND DOUBLE WALL

SPECIAL STAINLESS STEEL VENTING SYSTEM

FOR GAS BURNING APPLIANCES

CATEGORY II, III, & IV

UL1738 & ULC S636

Read the following before installation of Z-Vent

٭ Examine all components for possible shipping damage prior to installation.

٭ The Z-Vent system must be free to expand and contract. Check for unrestricted vent movement

through walls, ceilings and roof penetrations.

* The vent system must

be properly supported “DURING ASSEMBLY” vertically & horizontally as

prescribed in this manual. Failure to support the components at the point of install will cause

undue

stress on the joints of the components and fittings thereby voiding warranty.

٭ Proper joint assembly is essential for a safe installation. Follow these instructions exactly as written.

Check the connection of all joints during and after completion of assembly for proper insertion

depth and check gear clamps of single wall vents for proper torque.

٭ Different manufacturers have different joint systems and adhesives. Do Not Mix Pipe, Fittings or

Joining methods from different manufacturers beyond the flue collar adaptor.

WARNING: CONDENSATION WITH HIGH ACID CONTENT MAY BE PRODUCED DUE TO

UNFORESEEN CONDITIONS. THE HEATING APPLIANCE AND VENTING SYSTEM SHOULD BE

INSPECTED BY A LICENSED CONTRACTOR ON AN ANNUAL BASIS FOR POSSIBLE SIGNS OF

DETERIORATION DUE TO RUSTING OR PIN HOLES. CONDENSATION WITH HIGH ACID CONTENT

MAY CAUSE LEAKAGE OF HARMFUL GASES WHICH CAN CAUSE NAUSEA, FAINTING OR

DEATH. IF DETERIORATION IS DETECTED, IMMEDIATELY CEASE USE OF THE HEATING

SYSTEM AND CALL FURNACE / BOILER INSTALLER FOR REMEDIAL ACTION.

Summary of content (18 pages)

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Z-VENT Commercial/Industrial MODEL SVE SERIES IV INSTALLATION AND MAINTENANCE INSTRUCTIONS 3”- 12” SINGLE AND DOUBLE WALL SPECIAL STAINLESS STEEL VENTING SYSTEM FOR GAS BURNING APPLIANCES CATEGORY II, III, & IV UL1738 & ULC S636 Read the following before installation of Z-Vent ‫ ٭‬Examine all components for possible shipping damage prior to installation. ‫ ٭‬The Z-Vent system must be free to expand and contract. Check for unrestricted vent movement through walls, ceilings and roof penetrations.
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CANADA: FLEXMASTER CANADA LTD. 452 ATTWELL DR. ETOBICOKE, ONTARIO M9W 5C3 (416) 679-0045 U.S.A.: Z-FLEX US, INC. 20 COMMERCE PARK, NORTH BEDFORD, N.H. 03110-6911 1(800) 654-5600 Visit our web site at www.z-flex.
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Contaminants Notice It is understood that all appliances requiring inside combustion air must have sufficient supply of the air for proper combustion of the fuel air mixture within the appliance. What may not be understood is this supply of air shall be free of corrosive contaminants. Air mixture containing corrosive contaminants when under fire through the combustion process of the appliance produces exhaust gases containing these corrosive contaminants.
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6. Exterior mounted venting systems should be enclosed below the roof line with a chase to limit condensation and protect against mechanical failure. Vent system must be pitched minimum ¼” per foot back to condensate drain within the system.
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NOTICE A. The Z-FLEX SPECIAL STAINLESS VENT SYSTEM is for use only with appliances having a positive vent pressure of 8” of water column or less. B. Except for installation in one and two family dwellings, a venting system that extends through any zone above that on which the connected appliance is located shall be provided with an enclosure having a fire resistance rating equal to or greater than that of the floor or roof assemblies through which it passes C.
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DOUBLE WALL: 1. Align pipes and push them together until the snap-lock engages. (Illustration #1A, Images 4, 5 & 6). NOTICE Proper pipe orientation is essential to achieve effective condensate flow. In most cases the use of an appliance specific flue collar adaptor is required to connect directly to the appliance. This adaptor will configure the vent orientation with the gasket end of pipe and fittings towards termination.
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SIDE WALL VENTING INSTALLATION (see illustration # 2 and images 7 & 8 below) 1. 2. 3. 4. 5. Prior to beginning the installation, loosely assemble all parts required to make sure all parts are present. Review the venting requirements section in the appliance manufacturer’s installation & operating manual to determine the vent system configuration. Select and apply the appliance adaptor to the flue outlet collar of the appliance.
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TO CUT PIPE FOR SINGLE WALL ONLY The pipe may be cut to length on the non-expanded end using aviation snips or a hacksaw with a 24 tpi blade. Make certain to keep the cut end square & cylindrical. The cut end must be filed or sanded smooth before joining (see images 9 & 10). NOTICE i) ii) WARNING! Make certain to account for the 2 inch insertion depth when measuring for a cut length of pipe. Measure 2 inches from cut end and draw a line to indicate depth insertion.
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Image 11 Image 12 NOTICE Installer shall mark the minimum insertion depth on the adjustable pipe and insert to at least this marking. WARNING! Neglecting to insert the adjustable pipe to the prescribed insertion depth can result in joint failure.
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Double Wall Adjustable: ¾ The Double Wall Adjustable Pipe adds approximately 9 inches to the overall length PLUS the adjustment range up to a maximum range of 6-1/2 inches for pipe diameters 3in thru 12in (see images 13 & 14). ¾ Following the double wall pipe connection instructions above (pg. 6) make certain that the pipes are inserted to the full insertion depth for the required diameter.
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IMPORTANT: It is advisable to periodically check this loop during the operating months to make certain that that it is free flowing and filled with water. This will ensure the flow of condensate and… a) Prevent the exhaust gases venting through the drain fitting in a positive pressure vent system (Category III / IV). b) Prevent the suction of mechanical room air through the drain fitting in a negative pressure system (Category II).
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VERTICAL VENTING INSTALLATION ¾ Single wall vent terminations above the roof line must be at least 3 ft. (.9m) high to a maximum of 6 ft. (1.8m) without the use of lateral supports and 2 ft. (.61 m) higher than any part of a structure within 10 ft. (3.1 m). ¾ Vertical heights greater than 6ft. above the roof shall be supported by Guy Bands. Fasten Guy wires of stainless steel or galvanized cable with a minimum capacity of 500 lbs.
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INSTALLING FIRE-STOP SUPPORT / SPACER PLATE NOTICE A Fire-stop Support or Spacer must be used when a vent passes through a combustible floor or ceiling. The opening must be framed to meet the 6 inch clearance around the vent pipe. The brackets on the plate conforms to the clearance to combustibles dimensions. ¾ Determine whether a Fire-stop Spacer plate and/or Fire-stop Support collar is required. (see pg. 5 clause E).
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INSTALLING Z-VENT INTO AN EXISTING MASONRY CHIMNEY NOTICE A masonry chimney flue may be used to route Z-Vent through provided that no other appliance is vented directly into the same flue without a chimney liner. ¾ Prior to beginning the installation make certain that the existing chimney meets all national and local building codes. ¾ The chimney must be cleaned, removing all soot, debris and creosote before installing Z-Vent.
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TYPICAL ECCENTRIC INCREASER / SINGLE WALL TO DOUBLE WALL APPLICATION ¾ Eccentric Increaser (see illustration #3) shall be used when increasing the appliance vent diameter or system diameter from one size to a larger size in a “horizontal application”. (Refer to appliance installation & operating manual and /or engineered approved design) ¾ The Z-Vent Eccentric Increaser provides a level wall allowing the condensate to flow unimpeded back to drain.(see Vent Pipe Slope pg.
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APPLIANCE CONNECTION Refer to the appliance manufacturer's installation manual for proper method of joining Z-VENT to the appliance collar. An appliance adapter to suit specific requirements may be obtained from Z-FLEX. IMPORTANT NOTICE When any of the previous installation procedures are completed, be sure to go over the entire system to make sure all joints are secure and sealed correctly. The seams and joints must be checked for tightness prior to using the venting system.
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Z-FLEX® LIMITED LIFETIME WARRANTY Z-FLEX® (“Seller”) extends the following LIMITED WARRANTY for Z-VENT (the “Z-Vent”): Seller warrants that at the time of purchase, the Z-Vent will be free of manufacturer’s defects in material and/or workmanship. This warranty shall extend to the original purchaser of the Z-Vent or, if purchased by a contractor, to the end user.