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Lochinvar RPV-I&S - page 1
1 RPV-I&S POWERED VENT GAS WATER HEATER For your family’s comfort, safety and convenience we recommend water heaters to be installed and serviced by a plumbing professional. T ABLE OF CONTENTS GENERAL INFORMATION ............................................................ 1 INSTALLATION ....................................................... ...
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Lochinvar RPV-I&S - page 2
2 RPV-I&S INSTALLATION Locating The Water Heater DO NOT install the water heater in any location where gasoline or flammable vapors are likely to be present. Water Heaters in residential garages must be installed so that all burner(s) and burner ignition device(s) are located not less than 18 inches (46 cm) above the floor and must be located o ...
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Lochinvar RPV-I&S - page 3
3 RPV-I&S 76,000 BTU (283.9 L - 22.3 kW/Hr) models. Part II will cover venting specifications for 40 Gal - 40,000 BTU (151.4 L - 11.7 kW/ Hr) and 48 gal - 40,000 BTU (181.7 L - 11.7 kW/Hr) models. Refer to the rating plate located on the water heater for correct model identification. The National Fuel Gas Code ANSI Z223.1-(Latest Edition), CGA/ ...
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Lochinvar RPV-I&S - page 4
4 RPV-I&S diameter PVC pipe. When venting with 4" (10.2 cm) PVC, use a 4" (10.2 cm) to 3" (7.6 cm) reducer to exit through the building wall with 3" (7.6 cm) PVC. Use the 3" (7.6 cm) vent terminal supplied with the water heater to terminate on the outside of the building. If the length of 3" (7.6 cm) PVC needed to ...
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Lochinvar RPV-I&S - page 5
5 RPV-I&S NOTE: For installations requiring both horizontal and vertical runs, the following rule must be followed: Total number of feet of straight pipe (both horizontally and vertically) must not exceed the allowable length listed in the “Through The Wall” section of the table for total number of elbows used. Also: Total number of vertica ...
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Lochinvar RPV-I&S - page 6
6 RPV-I&S NOTE: When using 3" (7.6 cm) PVC, use a 3" (7.6 cm) to 2" (5.1 cm) reducer and exit the building wall with 2" (5.1 cm) PVC using the 2" (5.1 cm) 45° vent terminal supplied. Two 45° elbows are equivalent to one 90° elbow. Each 90° elbow is equivalent to 5 feet (1.5 m) of straight vent pipe. NOTE: ABS or CPV ...
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Lochinvar RPV-I&S - page 7
7 RPV-I&S NOTE: For installations requiring both horizontal and vertical runs, the following rule must be followed: Total number of feet of straight pipe (both horizontally and vertically) must not exceed the allowable length listed in the “Through The Wall” section of the table for total number of elbows used. Also: Total number of vertica ...
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Lochinvar RPV-I&S - page 8
8 RPV-I&S 1. When directly communicating with the outdoors, each opening must have a minimum free area of 1 square inch per 4000 BTU (6.5 cm 2 /1.2 kw) per hour of total input rating of all equipment in the enclosure. 2. When communicating with the outdoors through vertical ducts, each opening must have a minimum free area of 1 square inch per ...
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Lochinvar RPV-I&S - page 9
9 RPV-I&S GAS CONNECTIONS The gas supply lines must meet all requirements of the National Fuel Gas Code ANSI Z223.1-(Latest Edition) and/or in Canada CAN/CGA B149 Installation Codes - (Latest Editions). The minimum permissible gas supply pressure for the purpose of input adjustment is 1.5" water column (.37 kPa) above the operating manifol ...
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Lochinvar RPV-I&S - page 10
10 RPV-I&S Figure 11 ...
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Lochinvar RPV-I&S - page 11
11 RPV-I&S Figure 12 ...
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Lochinvar RPV-I&S - page 12
12 RPV-I&S THERMOST A T ADJUSTMENT The thermostat dial is adjusted to approximately 120°F when shipped from the factory. When adjusting the thermostat, it should be remembered that lower temperature settings are more energy efficient. The thermostat cover, on the right side of the gas valve, must be removed when the thermostat is adjusted. To ...
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Lochinvar RPV-I&S - page 13
13 RPV-I&S MAINTENANCE The following maintenance should be performed by a qualified service technician at the minimum periodic intervals suggested below. In some installations, the maintenance interval may be more frequent depending on the amount of use and the operating conditions of the water heater. Regular inspection and maintenance of the ...
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Lochinvar RPV-I&S - page 14
14 RPV-I&S THE FOLLOWING INSTRUCTIONS ARE FOR INSTALLATION OF: GAS WATER HEATERS SUITABLE FOR WATER (POTABLE) HEATING AND SPACE HEATING 1. All piping components connected to this water heater for space heating applications must be suitable for use with potable water. 2. Toxic chemicals, such as those used for boiler treatment, must not be intro ...
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Lochinvar RPV-I&S - page 15
15 RPV-I&S VENT PIPE PREPARATION AND JOINING Most failures in PVC, CPVC or ABS systems result from improper preparation and joining of pipe and fittings. The guidelines below must be followed when installing the venting system. If you have any question about the application or installation of the PVC, CPVC or ABS venting system, contact the man ...
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Lochinvar RPV-I&S - page 16
16 RPV-I&S Printed in USA ...
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