Section 675IAC14-4.3-292. Heaters

   Section E4222 Heaters is added as follows:

(1) E4222.1 Swimming pool heaters shall be of an "approved" type.

(2) E4222.2 Heaters shall be properly sized.

(3) E4222.3 The heaters shall be installed according to the manufacturer's recommendations, but not less than the following:

(A) The heater shall be installed on a concrete (or equivalent) base unless it is specifically designed for installation on a combustible surface.

(B) When installing the heater, adequate clearances shall be maintained on all sides and over the top of the unit. Consult manufacturer's instructions for proper clearances.

(C) In order to assure proper combustion, the heater shall have adequate ventilation installed as follows:

(i) When installing a heater indoors, proper openings to the room are required. The heater shall be installed in accordance with 675 IAC 18, the Indiana Mechanical Code, and the manufacturer's recommendations for properly sized air openings to the enclosure.

(ii) All fossil fuel heaters shall be supplied with some type of venting system for either indoor or outdoor installation. These draft or venting devices shall be installed according to the manufacturer's recommendations and shall not be modified.

(iii) When installing a heater that will be using propane gas, special precautions shall be noted. Propane gas is heavier than air and, therefore, can create special problems when the heater is installed in a pit or in an enclosed area. Whenever installing a heater with propane gas, the manufacturer's ventilation recommendations shall be followed.

(4) E4222.4 The heater gas supply and pipe sizing shall:

(A) be adequate; and

(B) comply with manufacturer's recommendations.

When installing a gas-fired heater, the gas line shall be run from the gas meter as directly as practical.

(5) E4222.5 The heater circulation system shall comply with the manufacturer's recommendations. Precautions shall be taken to avoid siphonage of hot water into the pump or filter. When manufacturers recommend metal pipe, that is, copper, heat sinks, they shall be installed vertically connected to the heater to prevent heat damage to plastic circulation pipe. Heater piping shall be designed to avoid excessive friction losses through the pipe or bypass valves, or both, required. When installing bypass valves, caution shall be taken to ensure adequate flow through the heater at all times.

(6) E4222.6 The water piping system shall be installed according to the manufacturer's recommendations. When manufacturers recommend precautions to eliminate siphonage so that the heater does not destroy the filter or any plastic pipe that is being used, the manufacturer's recommendations shall be followed. NOTE: When installing a heater and a filter system, adequate provisions shall be made so that the heater does not cause excessive pressure drop to the filter system. Refer to manufacturer's requirements or recommendations, or both, for installation of bypass valves. Excessive flow that causes pressure drop can be eliminated by the installation of an external or an automatic bypass valve. When installing a bypass valve, caution shall be noted so that there is always adequate flow through the heater.

(7) E4222.7 A time clock is recommended, and when used it shall be set long enough to properly filter the water and allow enough time for proper heating of the pool. It is recommended that a dual time clock or fireman's switch be used in conjunction with the heater to shut the heater off approximately one-half (1/2) hour before the filter system shuts down.

(Fire Prevention and Building Safety Commission; 675 IAC 14-4.3-292; filed Mar 25, 2011, 10:19 a.m.: 20110420-IR-675090789FRA; readopted filed Aug 4, 2011, 8:35 a.m.: 20110831-IR-675110254RFA)