TURBOPOWER 99 WATER HEATER
8VENTING PRODUCTS OF COMBUSTION
The TURBOPOWER® 99 is designed for operation with a "positive pressure vent system" constructed of locally obtained 4” or 5" (or larger) schedule 40 or 80 solid PVC or CPVC pipe. Do not use PVC or CPVC pipe with cell/foam type construction (such as “CellCore”) or other
WARNING: Do not vent this water heater into an existing or traditional gas vent or chimney or combine the vent with any other appliance. Such venting could result in failure of the venting system and/or exposure to carbon monoxide which can result in property damage, personal injury or death.
CAUTION: DO NOT use ABS pipe in the venting system. ABS can emit toxic fumes in the event of a building fire.
8.1Vent System Design
These water heater can be vented either vertically, through a ceiling or roof, or horizontally through a wall in any direction except down. The vent must be installed and supported to slope downward toward the water heater vent connection with at least ¼ inch drop per linear foot of horizontal vent run, to allow proper drainage of condensation.
8.2Venting of Multiple Units
Multiple heaters must not be vented into a common duct or breeching. Each unit must be independently vented in accordance with the instructions for either horizontal or vertical venting included above.
8.3Maximum Allowed Vent Length (Equivalent Length)
Maximum equivalent length of vent must not exceed the length identified in the table below (consult factory for longer equivalent lengths):
Water Heater |
| W/Remote Air | 100 equivalent feet, | 225 equivalent feet, |
Prefix | Input, Btu/h | Input, Btu/h | vent diameter: | vent diameter: |
742 | 500,000 | 500,000 | 4” | 6” |
1485 | 999,000 | 950,000 | 4” | 6” |
2228 | 1,500,000 | 1,500,000 | 5” | 8” |
2971 | 1,950,000 | 1,850,000 | 5” | 8” |
VENT PIPE FITTINGS EQUIVALENT (in feet)
90º Elbow | 14 feet |
90º Long Radius Elbow | 12 feet |
45º Elbow | 6 feet |
8.4Vent Construction and Assembly
1.Clean and deburr all solid PVC, or solid CPVC pipe ends and the joint area and trial assemble
2.If category IV stainless steel venting listed by a nationally recognized testing laboratory is used, follow the manufacturer’s instructions and assure all joints provide a water and gas tight assembly.
3.Vent support – The vent system should be supported at intervals no greater than four feet, to prevent sagging and distortion.
4.Testing for leaks. After the vent is assembled, close the end of the vent. With the gas supply turned off, energize the combustion blower to apply air pressure to the vent system. Spray each joint and vent connection with commercially available leak detection liquid to confirm no air is escaping from any point. Repair any leaks and retest. After testing is complete, REMOVE the temporary vent closure.
5.Attach the PVI vent termination cap supplied with the appliance. This termination is required for proper operation and no substitution is allowed.
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