Install Manual

ManualsBrandsNoritz ManualsAccessoriesNoritz 3/4" Lead-Free Tankless Sweat Isolation Valve Kit with 500,000 BTU Pressure Relief Valve

Installation Instructions:

1. The HOT water service valve will have a red drain valve lever handle and a 3/4” threaded outlet for the pressure relief valve.

Install the included pressure relief valve using Teflon® tape into the 3/4” threads adjacent to the drain valve lever handle.

2. Loosen the union assembly on the valve and connect the 3/4“ fitting to the hot water outlet of the heater using Teflon® tape.

3. Tighten the union assembly to service valve making sure that the union nut is securely connected to the fitting and

that the rubber o-ring is securely in place.

4. The COLD water service valve will have a blue drain valve lever handle. Loosen the union assembly from

the valve and connect the 3/4” fitting to the cold water inlet of the heater using Teflon® tape.

5. Tighten the union assembly on the valve making sure that the union nut is securely connected to the fitting and that

the rubber o-ring is securely in place.

6. Connect the COLD water service valve to the cold water supply piping.

7. Connect the HOT water service valve to the hot water supply piping.

8. The drain valve lever handles should be in the closed position (lever perpendicular to the drain portion of the body)

during normal operation. Do not rely on the drain cap to stop the water from draining. Always remove the drain caps

slowly to ensure that no pressure exists.

Figure 1. Valve Detail (Cold Water Valve shown)

IK-WV-200-1 (3/4” - CSA 500,000 BTU/hr RELIEF VALVE)

Drain Cap

Main Valve

Wing Handle

Figure 2. Completed Installation

TOP

BOTTOM

Lever Handle

Cold Water

Service Valve

Water Outlet

Water Inlet

Hot Water

Service Valve

Pressure Relief Valve

SIDE VIEW

Cold Water

Service Valve

Water Outlet

Water Inlet

Hot Water

Service Valve

Bucket

Pump

Hose

Figure 3. Flush Procedure

Drain

SIDE VIEW

Drain

Water Heater Flush Procedure:

1. If not already on, turn the unit on with the Power Button on the

Remote Controller. If no Remote Controller is installed, ensure that

electrical power is supplied to the unit.

2. Close the gas supply valve.

3. Close both the hot and cold water valves with a quarter turn of the main

valve wing handle. The handle will be perpendicular to the main valve body.

4. Ensure the drain valve lever handles are closed on both the hot

and cold valve (the lever will be perpendicular to the drain portion

of the body) and slowly remove the drain caps.

5. Connect the pump outlet hose to the cold water drain valve on the

service valve as shown in Figure 3.

6. Connect a drain hose to the hot water drain valve outlet on the

service valve as shown in Figure 3.

•T•W•H•

I S O L A T I O N V A LV E S

Summary of content (2 pages)

PAGE 1
•T•W•H• I S O L A T I O N V A LV E S IK-WV-200-1 (3/4” - CSA 500,000 BTU/hr RELIEF VALVE) Installation Instructions: 1. The HOT water service valve will have a red drain valve lever handle and a 3/4” threaded outlet for the pressure relief valve. Install the included pressure relief valve using Teflon® tape into the 3/4” threads adjacent to the drain valve lever handle. 2. Loosen the union assembly on the valve and connect the 3/4“ fitting to the hot water outlet of the heater using Teflon® tape. 3.
PAGE 2
Water Heater Flush Procedure (Continued) 7. Pour approximately 5 gallons of virgin food grade white vinegar or a solution of Lime Away or CLR and water (diluted 3 parts water to 1 part Lime Way or CLR) into a bucket. 8. Place both the pump inlet hose and the drain outlet hose into the bucket. 9. Open both drain valve lever handles on the service valves. 10. Turn the pump on. The unit will attempt to ignite and a number 11 should flash on the remote controller after about 1 minute. Do not reset the unit.