Bradley S19-2100 Manual de usuario

Installation and Maintenance

Instructions

Instructions pour l'installation et

l'entretien

Instrucciones para la instalación y

mantenimiento

215-1290 Rev. J; EN 06-914

Page 1 of 28 3/14/07

P.O. Box 309, Menomonee Falls, WI USA 53052-0309

Phone (262) 251-6000 Fax (262) 251-5817

http://www.bradleycorp.com

Bradley EFX 25 Thermostatic Mixing Valve

with Optional Cabinet

Model S19-2100 Series

Robinet thermostatique mélangeur EFX 25

avec cabinet facultatif

Bradley modèle S19-2100

Válvula mezcladora termostática EFX 25

con armario opcional

Bradley modelo S19-2100

2Bradley Corporation • 215-1290 Rev. J; EN 06-9144-14-2006

Bradley EFX 25 Thermostatic Mixing Valve with Optional Cabinet

Model S19-2100 Series Installation and Maintenance Instructions

Pre-Installation Information

Overview

Valve: The EFX 25 Thermostatic Mixing Valve (Model S19-2100) is designed for use with one drench

shower or eye wash(es) or combination drench shower/eye wash. The valve consists of a liquid-filled

thermal motor and a piston control mechanism with positive shut-off of hot when cold water supply is lost

to prevent scalding. The valve allows cold flow in the event of loss or interruption of the hot water supply

or failure of the thermostat. The valve may be mounted in any position.

The maximum inlet temperature of the valve is 180°F (82°C), with a recommended inlet temperature of

120°F–140°F (49°C–60°C). The valve has a maximum operating pressure of 125 PSI (860 kPA).

Cabinet: The optional recess-mounted or surface-mounted cabinet is constructed of 18-gauge stainless

steel with a 16-gauge stainless steel door. The cabinet finish is either stainless steel or baked white enamel.

The optional cabinet window is made of Plexiglass.

Supplies recommended for installation

• lockable shut-off on the outlet if tempered water is supplied to one or more remote showers

• lockable shut-off on the inlets/supplies

• (6) 3/8" wall anchors and fasteners for surface-mounted cabinet

• (4) 1/4" fasteners (and wall anchors, if necessary) for recess-mounted cabinet

• unions on all connections to facilitate removal of valve

Tools required for temperature adjustment

• 5/32" Allen key

• blade screwdriver

Table of Contents

Pre-Installation Information...................................... 2

Valve Installation Instructions................................... 3

Recess-Mounted Cabinet Installation ....................... 4

Surface-Mounted Cabinet Installation...................... 5

Recirculation Instructions ......................................... 6

Maintenance........................................................... 7-8

Troubleshooting..................................................... 8-9

Parts Breakdown and Service Kits.......................... 10

Bradley Warranty Information

Product warranties may be found under “Product Information” on our website at www.bradleycorp.com

3Bradley Corporation • 215-1290 Rev. J; EN 06-914 3/14/07

Installation Instructions for Valve

CAUTION: If optional cabinet is to be used, the cabinet must be mounted before the valve

is installed. Please refer to the cabinet mounting instructions on pages 4-5.

Note: Flush the supply lines before beginning

installation.

Note: When the check valves are in the open (operating)

position, the cover screw for the stop/check stem will be

flush with the valve cap (see Figure 1).

1. Connect the hot and cold valve supply inlets to the

appropriate hot and cold supply piping.

2. Connect the mixed valve supply outlet from the

valve to the tempered supply piping.

3. Screw the thermometer into the hole in the valve

body (see Figure 2). The thermometer provides a

readout of the outlet water temperature.

4. Pressurize the thermostatic mixing valve and check

for pipe leaks.

5. Slowly open the outlet valve to fill the piping system.

6. Check the temperature when approximately 10

GPM water flow is reached (equivalent to two face

washes) and adjust if necessary [the range of the

valve is 65°F–95°F (18°C–35°C)]. To adjust the

temperature, follow the procedure below:

•remove the slotted cover screw to expose the set screw

•using a 5/32" hex-head Allen key, turn the set screw

counterclockwise to increase the temperature or

clockwise to decrease the temperature.

Note: The standard preset factory temperature setting is

85°F (29°C). Consult proper medical and/or safety

authorities for the optimum temperature recommended for

your particular application.

7. Shut the hot water inlet off by closing either the hot

water check valve or inlet valve. While the hot water

supply is turned off, check to make sure the cold

water is flowing properly. If the cold water is flowing

properly, reopen the hot water supply.

8. Shut the cold water inlet off by closing either the cold water check valve or inlet valve. While the cold

water supply is off, check to make sure that the hot water flow has shut down.

9. Test the system weekly (turn on the water supply and check for constant control of the desired set

temperature).

Bradley EFX 25 Thermostatic Mixing Valve with Optional Cabinet

Installation and Maintenance Instructions Model S19-2100 Series

THERMOMETER

VALVE BODY

Figure 2

VALVE

CAP

Figure 1

STOP/CHECK

COVER SCREW

SLOTTED COVER

SCREW

4Bradley Corporation • 215-1290 Rev. J; EN 06-9143/14/07

Figure 3

BOTTOM VIEW

SIDE VIEWFRONT VIEW

Installation Instructions: Valve with Optional Recess-Mounted Cabinet

Note: Flush the supply lines before beginning installation.

1. Rough in a 24-1/2" W x 24-1/2" H hole in the wall for the cabinet (see Figure 3).

2. Measure and mark the cabinet mounting hole locations at the dimensions shown in Figure 3. Install four

1/4" wall anchors, if required (supplied by installer).

3. Insert the cabinet into the wall opening and secure into place with four 1/4" wall fasteners (supplied by

installer).

4. Install two anchors and screws through the valve bracket in back of the cabinet into a secure brace

(supplied by installer) or into the wall. This must be done to provide adequate support for the valve.

5. Install the valve nipples and one-half of the union ball valve using pipe dope or teflon tape. Then install

the other half of the union ball valve onto the inlet and outlet piping.

6. Insert the valve into the bracket in the cabinet (right side of the valve goes in first). Continue with the

valve installation procedure found on page 3.

7. Position the wall flange tight to the wall and caulk in place.

Bradley EFX 25 Thermostatic Mixing Valve with Optional Cabinet

Model S19-2100 Series Installation and Maintenance Instructions

5Bradley Corporation • 215-1290 Rev. J; EN 06-914 3/14/07

Figure 4

BOTTOM VIEW

Installation Instructions: Valve with Optional Surface-Mounted Cabinet

Note: Flush the supply lines before beginning installation.

1. Measure and mark the cabinet mounting hole locations at the dimensions shown in Figure 4. Install six

3/8" wall anchors (supplied by installer).

2. Position the cabinet onto the wall and secure into place with six 3/8" wall fasteners (supplied by

installer).

3. Install the valve nipples and one-half of the union ball valve using pipe dope or teflon tape. Then install

the other half of the union ball valve onto the inlet and outlet piping.

4. Insert the valve into the bracket in the cabinet (right side of the valve goes in first). Continue with the

valve installation procedure found on page 3.

MOUNTING HOLE LOCATIONS

FRONT VIEW SIDE VIEW

Bradley EFX 25 Thermostatic Mixing Valve with Optional Cabinet

Installation and Maintenance Instructions Model S19-2100 Series

6Bradley Corporation • 215-1290 Rev. J; EN 06-9143/14/07

Recirculation Diagram

Recirculation Instructions

Note: Recirculating the water in the system provides constant regulation of the water temperature. Flush the

supply lines thoroughly after completing installation. Close off all fixtures and label them as not available

for use during the recirculating process.

1. Turn off the recirculating pump and turn on the water supply (a water flow rate of 10-15 GPM is

required).

2. Let the water run through the system until a consistent temperature is obtained. If you do not obtain the

required temperature, refer to procedure #6 on page 3 for temperature readjustment.

3. As soon as the water reaches the proper temperature, turn on the recirculating pump (make certain the

proper system temperature has been achieved before proceeding).

4. Check the water temperature at the return pump. If the temperature exceeds the appropriate level by

2°F, adjust the temperature high-limit switch (this will turn off the pump). Wait until the return water

temperature is 5°F below the appropriate level and adjust the low-limit switch (this will turn the pump

back on).

5. Turn the balancing valve until it is completely open.

6. Turn off all fixtures and make sure there is no water running through the system (the cold inlet pipe

should feel warm to the touch).

7. Let the system run for thirty minutes or longer without water. If, after thirty minutes, the water temperature

increases, you may readjust the temperature by slowly closing the balancing valve until the appropriate

temperature is reached.

Bradley EFX 25 Thermostatic Mixing Valve with Optional Cabinet

Model S19-2100 Series Installation and Maintenance Instructions

7Bradley Corporation • 215-1290 Rev. J; EN 06-914 3/14/07

Thermostatic Mixing Valve Maintenance

For maximum efficiency, your thermostatic mixing valve requires a minimum amount of maintenance.

Follow the procedures outlined below to achieve highest performance.

WARNING: To prevent injuries, use proper protective equipment for eyes and skin

when using a propane torch.

Check the piston for smooth movement

To check the valve's piston for free and smooth movement,

follow the procedures outlined below.

1. Remove the valve's top cap and pull out the thermostat and

then the push rod (see Figure 5). You may use a needlenose

pliers to remove the thermostat from the valve body if

desired.

2. Insert a 7/16" dia. rod into the valve and into the piston

overheat chamber. Mark the length of the rod inside the

valve (see Figure 6).

3. Push the rod until the piston stops and mark the new length

(the new length should be approximately 5/16" longer than

the original length) (see Figure 6). If the length is not as it

should be, the piston is not moving freely and needs to be

cleaned along with the piston liner. Clean the piston and

liner following the method outlined below:

•remove the control section assembly from the valve body

•remove the top cap and thermostat

•unthread the liner from the cap (it is glued together; the

o-rings must be removed and a propane torch must be

used to melt the glue and loosen the liner)

•any cleaner suitable for brass and stainless steel may be

used (if cleaning with suitable cleaner is not sufficient to

remove debris, a 400-grit sandpaper may be used to polish

and hone the piston and liner).

4. If the piston moves freely, push the mechanism up and

down several times to make sure the piston moves

smoothly and consistently. If movement of the piston is

not consistent, recheck the piston and liner for dirt and

debris as described in procedure #3.

•if the piston parts need to be replaced, contact your

Bradley representative and ask for Piston/Liner Kit (part

number S65-175).

THERMOSTAT

Figure 5

TOP CAP

7/16"

ROD

The second mark

should be 5/16" higher

on the rod than the

first mark.

Figure 6

PISTON

OVERHEAT

CHAMBER

PUSHROD

Bradley EFX 25 Thermostatic Mixing Valve with Optional Cabinet

Installation and Maintenance Instructions Model S19-2100 Series

8Bradley Corporation • 215-1290 Rev. J; EN 06-9143/14/07

Thermostatic Mixing Valve Maintenance, continued . . .

Check the thermostat for proper operation

To check the valve's thermostat for proper operation, follow the

procedures outlined below.

1. Remove the top cap and pull out the push rod and thermostat

(see Figure 5 on page 7).

2. Insert a 5/16" dia. rod into the thermostat bellows. Mark the

length of the rod inside the bellows (see Figure 7).

3. Mark the length of the thermostat bellows (at room temperature,

with 10 lb. of force, the bellows length should be approx.

1-1/4") (see Figure 7).

4. If the thermostat bellows length is not in the proper range, the

thermostat must be replaced (it cannot be repaired). Contact

your Bradley representative and ask for Thermostat Kit (part

number S65-174).

Adjust the temperature

To adjust the valve's temperature to other than the factory preset,

follow the procedures outlined below.

1. Turn on the water and let it run until at least 10 GPM is

flowing through the valve.

2. Remove the slotted cover screw to expose the set screw.

3. Using a 5/32" hex-head Allen key, turn the set screw

counterclockwise to increase the temperature or clockwise

to decrease the temperature.

4. When the adjustment is complete, replace the cover screw

and turn off the water.

Thermostatic Mixing Valve Troubleshooting

Note: Before attempting to troubleshoot the valve or disassemble the components, check for the following

conditions:

• make sure that the check valves are fully open (the slotted stem must be flush with the stop/check cap)

(see Figure 1 on page 3) and that all inlet and outlet shut-off valves are open

• make sure that the hot and cold inlet pipes are connected properly, and that there are no cross-

connections or leaking stop/check valves

• check the hot water heater output to make sure that it is at least 15° F above the set temperature.

Be sure to close the appropriate shut-off valves prior to disassembly of the valve and reopen the valves

after inspection and repair is complete.

Problem: No hot water flow (cold water flow only)

Cause: The thermostat has failed and, subsequently, the safety shut-off has engaged (the shut-off valve has

closed on either the inlets or outlet).

Solution: See “Check the thermostat for proper operation” above and follow the step-by-step procedure.

5/16"

ROD

Bellows length

should be 1-1/8"

to 1-5/16"

Figure 7

THERMOSTAT

Bradley EFX 25 Thermostatic Mixing Valve with Optional Cabinet

Model S19-2100 Series Installation and Maintenance Instructions

9Bradley Corporation • 215-1290 Rev. J; EN 06-914 3/14/07

Thermostatic Mixing Valve Troubleshooting, continued . . .

Problem: Limited water flow

Cause: The inlet shut-off valve may be partially closed or there

has been a significant decrease in water pressure.

Solution: See “Check the thermostat for proper operation” on

page 8 and follow the step-by-step procedure.

Cause: The stop and check sections of the valve do not move

freely.

Solution: Dirt and debris have collected on the check screen or

seat, limiting the movement of the stop and checks. Remove

the stop and checks, clean the screen and seat and reassemble

the valve (see Figure 8). Do not remove the seat. The

components may be scraped with a screwdriver to remove

debris.

A pair of tweezers works well for pulling debris out from

the seat. If the stop and checks need to be replaced, contact

your Bradley representative and ask for Check/Stop Kit

(part number S65-176).

Problem: Improper water temperature

Cause: Recirculation is not balanced.

Solution: See “Recirculation instructions” on page 6 and follow

the step-by-step procedure.

Problem: External leaks in the system

Cause: Either the NPT joints or the o-rings have been damaged.

Solution: Replace the NPT joints and/or o-rings where necessary. For replacement of o-rings, contact your

Bradley representative and ask for O-Ring/Seal Kit (part number S65-173).

Problem: Temperature fluctuation

Cause: Thermostat is slowly failing.

Solution: See “Check the thermostat for proper operation” on page 8 and follow the step-by-step procedure.

Cause: Recirculation is not balanced.

Solution: See “Recirculation instructions” on page 6 and follow the step-by-step procedure.

Cause: Inlet supply line to the mixing valve is being shared by other pieces of equipment that are used only

periodically, such as laundry appliances or washdown stations. It may reduce the inlet pressure to the

mixing valve to less than 10 PSI. The supply line size may not be large enough to supply both the valve

and the other appliances.

Solution: Enlarge the supply line size, reconfigure the supply line or regulate the supply usage.

STOP AND

CHECKS

Figure 8

VALVE SEAT

VALVE

SCREEN

Bradley EFX 25 Thermostatic Mixing Valve with Optional Cabinet

Installation and Maintenance Instructions Model S19-2100 Series

10 Bradley Corporation • 215-1290 Rev. J; EN 06-9143/14/07

EFX 25: Parts Breakdown and Service Kits

Thermostat Kit S65-174

Item Qty. Description

15 1 Thermostat

17 1 O-Ring

21 1 O-Ring Check/Stop Kit S65-176

Item Qty. Description

25 2 Cap

26 2 O-Ring

27 2 Stem

28 2 O-Ring

29 2 Strainer

30 2 Spring

31 2 Holder (for Seal)

32 2 Seal

33 2 Washer

34 2 Nut

35 2 Seat

36 2 O-Ring

O-Ring Kit S65-173

Item Qty. Description

2 1 O-Ring

10 1 O-Ring

12 1 O-Ring

17 1 O-Ring

18 1 O-Ring

19 1 O-Ring

21 1 O-Ring

26 2 O-Ring

28 2 O-Ring

36 2 O-Ring

Piston & Liner Kit S65-175

Item Qty. Description

2 1 O-Ring

3 1 Liner

4 1 Washer

5 1 Screw

6 1 Spring

7 1 #10-24 Hex Nut

8 1 Spring

10 1 O-Ring

11 1 Piston

33 1 Washer

Bradley EFX 25 Thermostatic Mixing Valve with Optional Cabinet

Model S19-2100 Series Installation and Maintenance Instructions

Center Section Kit S65-304

Item Qty. Description

2 1 O-Ring

3 1 Liner

4 1 Washer

5 1 Screw

6 1 Spring

7 1 #10-24 Hex Nut

8 1 Spring

9 1 Retainer

10 1 O-Ring

11 1 Piston

12 1 O-Ring

13 1 Overheat Screw

14 1 Upper Seat

15 1 Thermostat

16 1 Pushrod

17 1 O-Ring

18 1 O-Ring

19 1 O-Ring

20 1 Mixing Valve Cap

21 1 O-Ring

22 1 Control Cap

23 1 Set Screw

24 1 Screw

33 1 Washer

NOTE: Kit numbers for rough

brass finish and standard range

thermostat. Contact Bradley for

other configurations.

Washer/Seal Kit S65-310

Item Qty. Description

4 1 Washer

32 2 Seal

33 3 Washer

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