Reliant FVIR GAS WATER HEATER Gebrauchs- und Pflegeanleitung PDF herunterladen (Seite 15)

Piping Installation

Piping, fittings, and valves should be installed according

to the installation drawing (Figure 16). If the indoor

installation area is subject to freezing temperatures, the

water piping must be protected by insulation.

The water supply pressure should not exceed 80 psi. If this

occurs, a pressure reducing valve with a bypass should be

installed in the cold water inlet line. This should be placed

on the supply to the entire house in order to maintain

equal hot and cold water pressures.

IMPORTANT: Heat cannot be applied to the water fittings

on the heater as they may contain nonmetallic parts. If

solder connections are used, solder the pipe to the adapter

before attaching the adapter to the hot and cold water

fittings.

IMPORTANT: Always use a good grade of joint compound

and be certain that all fittings are drawn up tight.

1. Install the water piping and fittings as shown in Figure

13. Connect the cold water supply (3/4” NPT) to the

cold water inlet fitting. Connect the hot water supply

(3/4” NPT) to the hot water outlet fitting.

IMPORTANT: Some models may contain energy saving

heat traps to prevent the circulation of hot water within the

pipes. Do not remove the inserts within the heat traps.

2. The installation of unions in both the hot and cold water

supply lines is recommended for ease of removing the

water heater for service or replacement.

3. The manufacturer of this water heater recommends

installing a mixing valve or an anti-scald device in the

domestic hot water line as shown in Figure 17. These

valves reduce the point-of-use temperature of the

water by mixing cold and hot water and are readily

available for use.

4. If installing the water heater in a closed water system,

install an expansion tank in the cold water line as

specified under Closed System/Thermal Expansion.

5. Install a shut-off valve in the cold water inlet line. It

should be located close to the water heater and be

easily accessible. Know the location of this valve and

how to shut off the water to the heater.

6. A temperature and pressure relief valve must be

installed in the opening marked “Temperature and

Pressure (T & P) Relief Valve” on the water heater.

A discharge line must be added to the opening of

the T&P Relief Valve. Follow the instructions under

Temperature and Pressure Relief Valve.

7. After piping has been properly connected to the water

heater, remove the aerator at the nearest hot water

faucet. Open the hot water faucet and allow the tank

to completely fill with water. To purge the lines of

any excess air, keep the hot water faucet open for

3 minutes after a constant flow of water is obtained.

Close the faucet and check all connections for leaks.

WATER SYSTEM PIPING

NFPA 54, ANSI Z223.1-current edition and the guidelines

set forth by prevailing local codes.

VERTICAL GAS VENT SYSTEM WITH

TYPE B DOUBLE WALL VENT PIPE.

3 FT. MINIMUM

LISTED VENT CAP

2 FT. MINIMUM ABOVE ANY OBJECT

WITHIN 10 FT. HORIZONTALLY

TYPE B DOUBLE

WALL VENT PIPE

**MAINTAIN

SPECIFIED

CLEARANCE

VENT

CONNECTOR

SLOPE UP

1/4 IN. PER FT.

MINIMUM

*MAINTAIN

CLEARANCE

SUPPORT

STRAP

FIGURE 14.

VENTING THROUGH A CHIMNEY WITH

TYPE B DOUBLE WALL VENT PIPE.

MAINTAIN MANUFACTURER’S

SPECIFIED MINIMUM CLEARANCE

LISTED VENT CAP

VENT CONNECTOR

UNUSED CHIMNEY

FLUE OR MASONRY

ENCLOSURE

SEAL

*MAINTAIN

CLEARANCE

VENT

CONNECTOR

SLOPE UP

1/4 IN. PER FT.

MINIMUM

**MAINTAIN

SPECIFIED

CLEARANCE

SUPPORT

STRAP

FIGURE 15.

Maintain vent pipe clearance requirements to local, state

and/or the “National Fuel Gas Code”, ANSI Z223.1(NFPA 54)-

current edition.

NFPA 211, Standard for Chimneys, Fireplaces, Vents,

and Solid Fuel-Burning Appliances states that these

chimneys are intended to be installed in accordance with

the installation instructions provided with each chimney

support assembly. Minimum air space clearance to

combustible materials should be maintained as marked on

the chimney sections.

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