PLUMBING HOOKUP. Haws 9326, 9327

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PLUMBING HOOKUP. Haws 9326, 9327 | Manualzz

PLUMBING HOOKUP

MUST FLUSH LINE A MINIMUM 5 MINUTES, AT A MINIMUM 15 GPM ON INITIAL START UP

The heater is equipped with NPT brass fittings.

Make sure ONLY NPT fittings are used for connection to this heater.

Connect the cold water line with the inlet connection

(RIGHT fitting)

Connect the outlet pipe with the outlet fitting

(LEFT fitting)

Do not reverse connections.

HOT

WATER

OUT

COLD

WATER

OUT

CAUTION

Never use pipe dope when making plumbing connections to this heater. Follow standard industry practice with careful application of Teflon tape. Do not allow Teflon tape to get into the heater.

CAUTION

Never solder any pipe connections while attached to this heater – damage to the heater will result. Doing this will void the warranty.

PRV VENT LOCATION. The PRV Vent is not a code compliant pressure relief valve. Check local codes to see if a code compliant T&P Relief Valve is required in your installation.

7

WARNING

MUST FLUSH OUT WATER HEATER FOR MINIMUM 5 MINUTES AT A MINIMUM 15

GPM ON INITIAL START UP OR AFTER ANY SERVICE WORK HAS BEEN PERFORMED.

CLOSE AND OPEN DRAIN VALVE 3 TIMES TO REMOVE ANY LODGED AIR BUBBLES.

FAILURE TO DO SO MAY DAMAGE THE HEATER.

MINIMUM INLET WATER PRESSURE 35 PSI DYNAMIC.

MAXIMUM WATER PRESSURE NOT TO EXCEED 150 PSI. RECOMMENDED

OPERATING PRESSURE 60 – 90 PSI.

USE OF A PRESSURE REGULATOR RECOMMENDED.

Water supply inlet piping must be a minimum 1 ¼” pipe diameter and it must be a dedicated supply line. 2 ½” minimum pipe diameter on trunk main when part of a branch system.

THE USE OF DI-ELECTRIC UNIONS MUST BE USED ON THE INLET AND OUTLET

PORTS OF THE WATER HEATER. RECOMMENDED 40 MESH Y STRAINER BE INSTALLED

IN COLD WATER INLET TO PREVENT DEBRIS FROM ENTERING THE WATER CHAMBERS.

BLOCKAGE CAUSED BY DEBRIS MAY CAUSE ELEMENT FAILURE. ISOLATION VALVES

RECOMMENDED FOR SERVICING

In applications where a long duty cycle is needed (more than 3 hours continuous run time), or a short duty cycle (less than 30 sec. on time with less than minute off time) please contact applications department. 1-800-543-6163

HAMMER ARRESTOR: SYSTEMS WITH A LARGE WATER VOLUME, OR LONG

LENGTHS OF PIPING CAN BE SUSCEPTIBLE TO WATER HAMMER . THE USE OF SLOW

ACTING VALVES ALONG WITH THE INSTALLATION OF A WATER HAMMER ARRESTOR IS

HIGHLY RECOMMENDED ON ALL UNITS. FAILURE TO INSTALL A WATER HAMMER

ARRESTOR CAN CAUSE DAMAGE TO WATER HEATER AND VOID WARRANTY- Refer to manufacturer’s installation manual for proper size and installation location.

8

Proper water conditions must be maintained to prevent damage to the water heater.

CONSTITUENT (MG/L)

Alkalinity

Calcium

Carbon Dioxide

Chlorine

Free Chlorine

Iron

Magnesium as Mg

Magnesium as Mn

Nitrate

Oxygen

Silica

Sodium

Sulfate

TDS*

MINIMUM REQUIREMENT

50

25

0

100

1

0.2

0.5

0.1

25

2

15

50

25

200

BETTER

25

5

0

15

1

Total Hardness pH

25

6.5 – 8.5

10

6.5 – 8.5

Turbidity (NTU) 5 5

* NOTE: Total dissolved solids

** NOTE: Do not reduce the TDS beyond this amount or the water will be too aggressive

1

10

10

25

100

0.1

0.1

0.1

25

0.1

1

1

1

5**

0.01

0.1

0.1

10

BEST

10

0.5

0

1

0.05

1

6.5 – 8.5

1

9

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