Whirlpool Energy Smart 188414 User Manual download pdf (Page 5)

Water supply pressure should be around 50 to 60 psi

and should not exceed 80 psi. If this occurs, a pressure

reducing valve 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 ﬁ ttings

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 ﬁ ttings.

IMPORTANT: Always use a good grade of joint com-

pound and be certain that all ﬁ ttings are drawn up tight.

1. Install the water piping and fitting as shown in

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

to the fitting marked “Cold”. Connect the hot water

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

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 dielectric unions in both the hot

and cold water supply lines is recommended for

ease of removing the water heater for service or

replacement.

3. Some local codes may require, and the manufac-

turer of this water heater recommends,

installing a mixing valve in the domestic hot water

line as shown in Figure 4. 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.

4. If installing the water heater in a closed water

system, install a relief valve or 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. Install a discharge line from the temperature and

pressure relief valve in the opening marked “T & P

RELIEF VALVE”. Install as specified under

“Temperature and Pressure Relief Valve”.

7. After piping has been properly connected to the

water heater, open the nearest hot water faucet.

Then open the cold water shut off valve and

allow the tank to completely fill with water. To purge

the lines of any excess air and sediment, 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.

In a Closed System use a

Thermal Expansion Tank.

Pressure Reducing

Valve With Bypass

Main

Water

Supply

Cold Water

Supply to

Fixtures

Cold Water

Inlet Valve

Hot Water

Outlet

Union

Temperature and

Pressure Relief Valve

Discharge line 6” maximum

above drain

Drain line

3/4” ID

minimum

Drain

Metal Drain Pan

2-1/2” depth max.

1”

Min.

Massachusetts:

Install vacuum relief

in cold water line per

section 19 MGL 142.

Figure 3

Water Piping Installation

GRID

ENABLED

VACATION

STANDARD

ENERGY

SMART

°F/°C

Figure 4

Mixing Valve

Top Water Connections

Unmixed

Hot Water

Mixed Water

To Fixtures

Cold Water

Inlet

Hot

Water

Outlet

Mixing Valve

(Set To 120 F)

Follow The Mixing Valve

Manufacturer’s Instructions

Water System Piping

Piping Installation

Piping, ﬁ ttings, and valves should be installed according

to the installation drawing (Figure 3). If the indoor in-

stallation area is subject to freezing temperatures, the

water piping must be protected by insulation.

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Whirlpool Energy Smart 188414 User Manual Page 5

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