State SBV 65 10TS User Manual download pdf (Page 6)

Water System Piping

FIGURE 7

JACKET TOP WATER CONNECTION LOCATIONS

COLD INLET

ANODE

SOLAR IN (DOWN)*

SOLAR OUT (UP)*

119

GALLON

ONLY

HOT OUTLET

TEMPERATURE AND

PRESSURE RELIEF VALVE

*SEE FIGURE 8 FOR SIDE SOLAR CONNECTIONS (OPTIONAL). YOU MAY USE

EITHER THE TOP OR THE SIDE SOLAR CONNECTIONS.

Piping, ﬁ ttings, and valves should be installed according to

the installation drawing (Figure 8). If the indoor installation

area is subject to freezing temperatures, the water piping

must be properly insulated.

IN A CLOSED SYSTEM

USE EITHER:

1. THERMAL EXPANSION TANK

2. PRESSURE RELIEF VALVE

PRESSURE REDUCING

VALVE WITH BYPASS

COLD WATER

INLET

COLD WATER

INLET VALVE

MIXED HOT

WATER

OUTLET

UNION

TEMPERATURE AND

PRESSURE RELIEF VALVE

DISCHARGE LINE

(DO NOT CAP OR PLUG)

DRAIN LINE

3/4 INCH ID

MINIMUM

DRAIN

SUITABLE DRAIN PAN

2-1/2 INCH DEPTH MAX.

1 INCH

MIN.

MASSACHUSETTS:

INSTALL A VACUUM

RELIEF IN COLD

WATER LINE PER

SECTION 19 MGL 142.

FIGURE 8

WATER PIPING INSTALLATION

MIXING

VALVE

SOLAR OUT (UP)*

SOLAR IN (DOWN)*

6 INCH MAXIMUM AIR GAP

BETWEEN THE END OF THE

DISCHARGE LINE AND DRAIN

SOLAR IN (From Collector)*

* YOU MAY USE EITHER THE TOP OR THE SIDE SOLAR CONNECTIONS.

SOLAR OUT (To Collector)*

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 must not be applied to the water fittings on the heat-

er as they may contain nonmetallic parts. If solder con-

nections are used, solder the pipe to the adapter before

attaching the adapter to the hot and cold water fittings.

• Always use a good grade of joint compound and be cer-

tain that all fittings are tight.

Piping Installation

1. Install the water piping and fittings as shown in

Figure 8. Connect the cold water supply (3/4” NPT) to

the fitting marked “Cold Water In”. Connect the hot water

supply (3/4” NPT) to the fitting marked “Hot Water Out”.

IMPORTANT: Some models may contain energy saving

heat traps to prevent the circulation of hot water within the

pipes. Do not remove these inserts.

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

supply lines are recommended for ease of removing the

solar storage tank water heater for service or replacement.

3. The manufacturer of this solar storage tank water heater

recommends installing a mixing valve or an anti-scald

device in the domestic hot water line as shown in Figure

9. These valves reduce the point-of-use temperature of

the hot water by mixing cold and hot water and are readily

available. Contact a licensed plumber or the local plumbing

authority. Install a spring check valve in the cold water inlet

to the mixing valve (See Figure 9). Connect the piping

that will carry the water from the solar storage tank to the

solar collectors, then to the fitting marked “SOLAR OUT.”

Connect the return line from the solar collectors to the

fitting marked “SOLAR IN.” You may use either the top

connections or the side connections (see Figure 8).

IMPORTANT: Cap or plug the solar connections that are

not used.

FIGURE 9

MIXING VALVE

TOP WATER CONNECTIONS

SOLAR IN (To Collector)

COLD

WATER

INLET

MIXING

VALVE TO

FIXTURES

MIXING VALVE

(SET TO 120

° F)

SOLAR OUT (To Collector)

SPRING

CHECK VALVE

MIXED

HOT

WATER

OUTLET

4. Recirculation return lines should be connected to an

auxiliary solar storage tank water heater (see Figure

10, Page 7). DO NOT connect recirculation lines to

the solar storage tank. Recirculation pumps should be

controlled by a timer which will stop circulation at night

or any time hot water is not being used.

5. If components in the solar control system have

maximum working pressures that are lower than the

maximum water supply pressure, a pressure reducing

valve with an integral strainer and by-pass should

be installed in a cold water supply line. The pressure

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