Waterpik Technologies pool/spa heater warranty 2F-4b.Vent Pipe Sizing Installation

LX and LT Pool Heaters Page 5

	ROOF JACK
FOR GARAGE
INSTALLATION
BASE OF HEATER
MUST BE A	2)
MINIMUM OF 18
INCHES (46 CM)
ABOVE THE
FLOOR

Figure 6. Indoor Installation Venting (USA), or Outdoor Shelter (Canada).

2F-4b.Vent Pipe Sizing and

Installation

As part of their certification, the LX and LT have been determined to be a Category I Fan-Assisted appliance. They are intended for standard vertical venting per tables provided in most local codes for Category I Fan- Assisted appliances. If the local code does not include such tables, refer to the National Fuel Gas Code Z223.1 or the Canadian Installation Codes for Gas Appliances CAN 1-B149.1 & 2. Note that the tables for fan-assisted appliances include both maximum and minimum vent loading figures. The primary purpose of the maximum ratings are to assure that the vent operates with negative pressure throughout its length. The minimum ratings are to assure that vent gases don’t cool too much and thereby assure that condensation doesn’t occur.

It is important that all aspects of venting installation be in accordance with local codes, or in their absence, the cited national codes. Vent diameter, height, allowable length of horizontal runs, vent cap requirements, location and height of vent terminations on a roof, and many other important matters are covered in these codes. Proper installation of the LX and LT heaters requires that all these factors be correctly handled.

2G. Gas Supply and Piping

2G-1. General Instructions

Review the following general instructions before continuing the installation.

1.The gas supply must be able to provide gas at pressures specified in Table 5.

2.Gas piping installation must be in accordance with the latest edition of ANSI Z223.1. In Canada, the installation must be in accordance with CAN- B149.1 or .2 and all local codes that apply.

3.Check the rating plate to make sure the heater is fitted for the type of gas being used. Waterpik Technologies heaters shipped from the factory are certified to operate at an altitude of 0 to 3000 feet (0 to 915 m) for natural gas and 0 to 5000 feet (0 to 1525 m) for propane, or if so ordered, at higher altitudes. In the United States, the heater manifold is marked with a tag or sticker indicating one of the following high altitude operation codes:

FOR NATURAL GAS

a.High altitude (H) - 3,000 to 6,000 feet (915 to 1830 m)

b.High altitude (J) - 6,000 to 10,000 feet (1830 to 3050 m)

FOR PROPANE GAS

a.High altitude (H) - 5,000 to 10,000 feet (1525 to 3050 m)

4.In Canada, the heater rating plate is marked for specific altitude requirements as follows:

FOR NATURAL GAS

a.Factory Released - 0 to 2,000 feet (0 to 610 m)