HTP Flexible Vent Kit User Manual

Advanced Heating and Hot W ater System s

The following defined terms are used throughout this manual to bring attention to the presence of
hazards of various risk levels, or to important product information.

DANGER

injury.

WARNING

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or

moderate injury.

CAUTION used without the safety alert symbol indicates a potentially hazardous situation which, if not
avoided, may result in property damage.

This instruction manual is for use only with appliances that have been certified to use this ventilation

death.

P.O. Box 429 ∙ 120 Braley Road ∙ East Freetown, MA 02717 ∙ 508-763-8071∙ Fax: [phone]

FLEXIBLE VENT KIT

INSTALLATION INST RUCTIONS

(Part #8400P-001)

NOTE: Read this entire instruction manual and refer to the Venting section of the appliance
Installation and Maintenance manual before starting vent installation. Follow all instructions
exactly as written.

indicates an imminently hazardous situation which, if not avoided, will result in death or serious

indicates a potentially hazardous situation which, if not avoided, could result in serious injury

or death.

INTRODUCTION

system. These appliances are HTP’s Pioneer, Phoenix, Versa-Hydro, MC-Series, and Elite appliances.
Installing any other appliance with this system will result in property damage, severe personal injury, or

SAFETY CONSIDERATIONS

• Prior to installation, examine all components for possible shipping damage.

• Proper joint assembly is essential for safe installation. Check the integrity of joints upon

completing assem bly.

• This venting system must be free to expand and contract under normal operation.

• This venting system must be supported in ac c ordanc e with thes e instr uc t ions.

• Assure unrestricted vent movement where required through walls, ceilings, and roof penetrations.

This installation shall be done by a qualified service agency in accordance with these instructions, all
instructions is not followed exactly, propert y dam age, personal injury, or death may result.

Before beginning any installation or modification, be sure the main electrical disconnect switch is in the
“OFF” position. Electrical shock can cause serious personal injury or death.

burning appliances ONLY. Failure to follow this warning will result in fire, serious personal injury, or death.

Terminating the vent pipe or air inlet with an elbow or tee is expressly prohibited when using the flexible
vent kit.

SYSTEM

CLEARANCE TO COMBUSTIBLES, HORIZONTAL OR VERTICAL INCH (mm)

Flexible Vent System

1.2 (30)

• Do not mix pipe, fittings, or joining methods from different manufacturers with this flexible vent kit.

• Do not use adhesives of any kind with this venting system. Use only approved fittings.

Installing and servicing heating equipment can be hazardous due to gas and electrical components. Only
trained service personnel should install or service heating equipment.

applicable codes, and requirements of the authority having jurisdiction. If the information in these

When working on heating equipment, observe all precautions in the literature, on tags, and on labels
attached to the appliance. Follow all safety codes. Wear safety glasses and work gloves. Have a fire

extinguisher available.

This vent kit may be used in residential or commercial installations to terminate Category II or IV gas-

2

A. APPLICATION

The maximum positive pressure of the flexible vent kit is 8” w.c. The maximum flue gas temperature of
the appliance must be not more than 230
used in vertical system designs. An existing chimney or chase must be used to route the flexible venting
system. To prevent condensate from pooling in the vent, flex pipe is not to bend more than 45

o

F (110oC) (ULC-S636-Class IIC). This vent kit must only be

o

.

B. PRESSURE DROPS

Refer to the appliance manufacturer’s installation instructions for information about maximum venting
length, pressure drops, and equivalent length of the fittings. Use the guidelines below to adjust the
recommended vent lengths for the polypropylene venting system.

• The 3” (80 mm) Polypro Flex Kit (8400P-001) has a total equivalent length (TEL) of 14’ (4.26 m)
for the entire kit.

• It is important to measure the amount of flexible pipe used, as the resistance is 25% greater than
standard pipe. For example: Standard PVC/CPVC 3” (80mm) pipe resistance is equal to 1’. 3” (80
mm) Flexible Polypro Venting (8400-002/8400-003) pipe resistance is equal to 1.25’ (380 mm).

C. MINIMUM CLEARANCE TO COMBUSTIBLES

The following table indicates the minimum clearance to combustible materials. It is prohibited to place any
type of insulation around the venting system within these clearances.

Table 1

It is recommended that the venting system be checked once a year by a qualified serviceman. Special
inspected annually can result in property damage, personal injury, or death.

No other appliance may be vented into the same chimney or chase flue with the flexible venting system.
Failure to heed this warning could result in property damage, personal injury, or death.

Proper installation of the venting system and appliance is dependent on the use of all parts specified by

will result in property damage, severe personal injury, or death.

To prevent condensate from collecting in the flexible vent corrugations, the maximum allowable deflection

specific instructions supplied with these products.

D. INSTRUCTIONS

Before installation, consult the authority having jurisdiction (such as the gas utility, municipal building
department, fire prevention bureau, etc.) to determine the need to obtain a permit or for applicable local or
national codes. A venting system that extends through any area above the one where the vented
appliance is located shall be provided with an enclosure which has a fire resistance rating equal to or
greater than the fire resistance rating of the floor or roof assemblies through which it passes.

attention should be paid to the presence of debris and signs of leakage. Failure to have this system

Normal operation of gas burning appliances does not result in deposits of combustible soot in venting
systems. However, a poorly adjusted or malfunctioning appliance can deposit soot and other debris which
can enter the venting system. Any such accumulation should be removed and the appliances adjusted to
eliminate future accumulation. Use only a soft brush for cleaning the sections and fittings.

If any leakage is found at the joints, the connected appliances should be turned off and the leaks
repaired.

3

Plastic venting systems shall not pass through rated fire separations.
The distance between the point of termination of the system must be:

• 6’ (2 m) or more from the combustion air inlet of any appliance

• More than 3’ (1 m) from any other building opening, gas utility meter, service regulator, etc.

• Less distance if specified in the appliance instr uc ti ons.

Contact the local building or fire officials about restrictions and installation inspection in your area.

the manufacturer for use in particular installations. The performance of the system may be affected if the
proper assembly of all required parts is not accomplished. Acceptance and use of the venting system
requires full compliance with these installation instructions. Failure to properly install this venting system

Ensure the following for each installation:

• Flex vent pipe, fittings, and termination must be used for the entire length of the vent. These
products are supplied with specific instructions. These instructions must be followed.

(bend) of the flexible vent is 45o. Since flexible vents cannot be used in a complete horizontal position, the
connection between the appliance and the flexible vent must be done with a rigid vent system. Follow the