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IS-1170-M2_L1170-M2

Instructions

Series LF1170 and LFL1170

Hot Water Temperature Control Valves

Size:

⁄2",

⁄4", 1"

LF1170-UT-M2

LF1170-QC-M2

Installation

Valve should be installed and adjusted by a licensed contractor

in accordance with local codes and ordinances. Further, this

valve should be installed in a location where it is accessible for

cleaning, service or adjustment.

1. Close both the hot and cold water shutoff valves upstream

nearest to the intended installation.

2. Bleed the remaining water from the system.

3. Connect the water supply to valve as shown in Figure 1 or 2,

depending on the application. Supply piping must be flushed

clean before making connections to the valve.

NOTICE

To prolong the life of the Model LF1170-M2 or LFL1170-M2

valve, it is recommended that it be trapped as shown (Figure1):

i.e. the hot water inlet to the LF1170-M2 valve should be 8" –

12" (200 – 305mm) below the hot water supply feed.

4. Valve can be installed in any position. Note: the inlet hot sup-

ply is to be connected to the “H” side of the valve, the cold

supply side to the “C” side and the mixed water outlet to the

“M” side.

5. Make sure union nuts are placed over tailpieces prior to

soldering or threading to pipe.

6. For valves with Quick-Connect tailpieces refer to “Quick-

Connect Installation” instructions below.

NOTICE

To prevent damage to valve from excessive heat during

soldering, remove unions and gaskets from valve body prior to

soldering.

7. After soldering, flush piping and install valve using filter wash-

er on hot and cold water inlet and fiber washer on the mixed

water outlet.

8. Start-up: Open cold water supply, then hot water supply.

Inspect for leaks.

9. Adjust temperature to desired setting (see Temperature

Adjustment Section).

WARNING

Read this Manual BEFORE using this equipment.

Failure to read and follow all safety and use information

can result in death, serious personal injury, property

damage, or damage to the equipment.

Keep this Manual for future reference.

WARNING

Use caution when soldering. Protect yourself and others. FUMES

AND GASES can be hazardous to your health. HEAT RAYS (INFRARED

RADIATION) from flame or hot metal can injure eyes.

WARNING

You are required to consult the local building and plumbing

codes prior to installation. If the information in this manual

is not consistent with local building or plumbing codes,

the local codes should be followed. Inquire with governing

authorities for additional local requirements.

WARNING

Need for Periodic Inspection and Yearly Maintenance:

Periodic inspection and yearly maintenance by a licensed

contractor is required. Corrosive water conditions, tempera-

tures over 200°F, unauthorized adjustments or repair could

render the valve ineffective for service intended. Regular

checking and cleaning of the valve’s internal components and

check stops helps assure maximum life and proper product

function. Frequency of cleaning and inspection depends upon

local water conditions.

FAILURE TO COMPLY WITH PROPER INSTALLATION AND

MAINTENANCE INSTRUCTIONS COULD CONTRIBUTE TO THE VALVE

FAILURE.

This Hot Water Master Tempering Valves cannot be used for temper-

ing water temperature at fixtures. Severe bodily injury (i.e., scalding

or chilling) and/or death may result depending upon system water

pressure changes and/or supply water temperature changes. ASSE

standard 1016, 1069 or 1070 listed devices should be used at fix-

tures to prevent possible injury.

These Hot Water Tempering Valves are designed to be installed at or near

the boiler or water heater. They are not designed to compensate for sys-

tem pressure fluctuations and should not be used where ASSE standard

1016, 1069 or 1070 devices are required. These valves should never be

used to provide “anti-scald” or “anti-chill” service.

The components of the system must be of materials with a construction

capable of withstanding the high limit output temperatures of the water

heating source.

WARNING

1 2 3 4

Inhaltsverzeichnis

Seite 1 - Series LF1170 and LFL1170

IS-1170-M2_L1170-M2Instructions Series LF1170 and LFL1170Hot Water Temperature Control ValvesSize: 1⁄2", 3⁄4", 1" LF1170-UT-M2LF1170-Q

Seite 2 - Radiant Return

Figure 2Radiant Heat Applicationfrom BoilerCold Radiant ReturnMixed to Radiantto BoilerWatts Flow CheckWatts Ball ValveTP Test PlugWatts Ball Valve

Seite 3 - Symptom Cause Solution

Troubleshooting Guide Series LF1170-M2 and LFL1170-M2Period Inspection/MaintenanceThis valve requires periodic inspection and verification of the out-

Seite 4

ATTENTION INSTALLER: After installation, please leave this Instruction Sheet for occupant’s information.IS-1170-M2_L1170-M2 1325 EDP# 1915905 © 201

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Inhaltsverzeichnis

Verwandte Modelle: LF1170 | 1170 |

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