Bradley EFX 8 Manual de usuario

Installation and Maintenance

Instructions

Instructions pour l’installation et

l’entretien

Instrucciones para la instalación y

mantenimiento

215-1291 Rev. L; EN 07-903A

Page 1 of 28 5/14/08

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

TEL: 1-800-BRADLEY FAX: (262) 251-5817

http://www.bradleycorp.com

Bradley EFX 8 Thermostatic Mixing Valve

with Optional Cabinet

Model S19-2000, S19-2000EFX Series

Robinet thermostatique mélangeur EFX 8

avec cabinet facultatif

Bradley modèle S19-2000, S19-2000EFX

Válvula mezcladora termostática EFX 8

con armario opcional

Bradley modelo S19-2000, S19-2000EFX

S19-2000

S19-2000EFX

S86-066 (Cabinet Only)

2Bradley Corporation • 215-1291 Rev. L; EN 07-903A

5/14/08

Bradley EFX 8 Thermostatic Mixing Valve with Optional Cabinet

Model S19-2000 Series Installation and Maintenance Instructions

Pre-Installation Information

Overview

Valve: The EFX 8 Thermostatic Mixing Valve (Model S19-2000) is designed for use with face and eye washes.

Model S19-2000EFX is designed for use with S19-292. 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 ther-

mostat. 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 (For use with S19-2000 only) 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) 1/4" 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 installation

• 5/32" Allen key key (for temperature adjustment)

Tools required for maintenance/troubleshooting

• blade screwdriver (for stop/check cover screw removal)

• 3/4" wrench (for acorn nut removal)

• 15/16" socket wrench and needle-nose pliers (for piston liner removal)

• 1/2" deep well socket wrench (for piston assembly

’

s upper seat removal)

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

Installation Instructions for Valve

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

is installed. If using the S19-2000, please refer to the cabinet mounting

instructions on pages 4-5. If using the S19-2000EFX, please refer to the

mounting instructions supplied with the cabinet.

Note: Flush the supply lines before beginning

installation.

Note: When the stop/check valves are in the closed

position, the stem for the stop/check will be 1/4" above

the stem nut (see Figure 1). When the stop/check valves

are in the open position, the stem will extend out

approximately 1/2" (13 mm) from the stem nut.

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. Pressurize the thermostatic mixing valve and check

for pipe leaks.

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

5. Check the temperature when approx. 3-5 GPM

water flow is reached (equivalent to one eye wash

or face wash) 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 top 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.

6. 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.

7. 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.

8. Test the system weekly (turn on the water supply

and check for constant control of the desired set

temperature).

3Bradley Corporation • 215-1291 Rev. L; EN 07-903A 5/14/08

Bradley EFX 8 Thermostatic Mixing Valve with Optional Cabinet

Installation and Maintenance Instructions Model S19-2000 Series

Figure 1 S19-2000

SCREW

STEM

STEM NUT

Figure 2 S19-2000EFX

shown in

S19-292

Bradley EFX 8 Thermostatic Mixing Valve with Optional Cabinet

Model S19-2000 Series Installation and Maintenance Instructions

4Bradley Corporation • 215-1291 Rev. L; EN 07-903A

5/14/08

Figure 3

BOTTOM VIEW

SIDE VIEW

FRONT VIEW

Installation Instructions: Valve with Optional Recess-Mounted Cabinet

Note: Flush the supply lines before beginning installation.

1. Rough in a 11-1/2" W x 13" 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. Insert the valve into the bracket in the cabinet (right side of the valve goes in first). Install the valve,

elbows and stops onto the inlet and outlet piping.

5. Continue with the valve installation procedure found on page 3.

11"

(279)

11"

(270)

9-3/4"

(248)

Door

5-3/8"

(137) 2-1/2"

(64)

7-1/2"

(190)

6-1/2"

(165)

12-1/2"

(318)

2-1/4"

(57)

1/2" NPT Inlets

1/2" NPT Outlet

(51)

2-1/2"

(64)

14-1/2"

(368)

13"

(330)

(76) 5"

(127)

11"

(279)

Box

Flange

11-1/4"

(286)

Door

9/32" (6) Ø Holes

(4) Each Side

(8) Total

Bradley EFX 8 Thermostatic Mixing Valve with Optional Cabinet

Installation and Maintenance Instructions Model S19-2000 Series

5Bradley Corporation • 215-1291 Rev. L; EN 07-903A 5/14/08

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

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

2. Position the cabinet onto the wall and secure into place with six 1/4" wall fasteners (supplied by

installer).

3. Insert the valve into the bracket in the cabinet (right side of the valve goes in first). Install the valve,

elbows and stops onto the inlet and outlet piping.

4. Continue with the valve installation procedure found on page 3.

MOUNTING HOLE LOCATIONS

FRONT VIEW SIDE VIEW

11"

(270)

9-3/4"

(248)

Door

5-1/2"

(140)

(76)

(127)

11"

(279)

Box

11-1/4"

(286)

Door

3-1/4"

(83)

3/4"

(19)

5-1/2"

(140)

(178)

(51)

8-1/2"

(216)

6-1/2"

(165)

12-1/2"

(318)

2-1/4"

(57)

1/2" NPT Inlets

1/2" NPT Outlet

(51)

2-1/2"

(64)

5/16" (8) Ø

(6) Holes

Bradley EFX 8 Thermostatic Mixing Valve with Optional Cabinet

Model S19-2000 Series Installation and Maintenance Instructions

6Bradley Corporation • 215-1291 Rev. L; EN 07-903A

5/14/08

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 3-5 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.

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.

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 thermostat (see Figure 5).

2. Push down on the pushrod (the pushrod should move

approximately 3/8") (see Figure 6). If the movement 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 top cap and thermostat

•using a 15/16" socket wrench, loosen the liner from the

valve body and lift the liner out with a needle-nose pliers

•disassemble the piston assembly components as shown in

Figure 7 (use a 1/2" deep-well socket to remove the upper

seat)

•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)

•reassemble the piston assembly components and retest the piston.

3. 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 #2.

•if the piston parts need to be replaced, contact your Bradley representative and ask for Piston/Liner

Kit (part number S65-172).

Bradley EFX 8 Thermostatic Mixing Valve with Optional Cabinet

Installation and Maintenance Instructions Model S19-2000 Series

7Bradley Corporation • 215-1291 Rev. L; EN 07-903A 5/14/08

THERMOSTAT

TOP CAP

Figure 6

PUSHROD

(should move

approx. 3/8")

Figure 7

Figure 5

S19-2000

Bradley EFX 8 Thermostatic Mixing Valve with Optional Cabinet

Model S19-2000 Series Installation and Maintenance Instructions

8Bradley Corporation • 215-1291 Rev. L; EN 07-903A

5/14/08

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 thermostat (see Figure 5, page 7).

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

the length of the rod inside the bellows (see Figure 8).

3. Mark the length of the thermostat bellows (at room tempera-

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

approx. 1-1/4") (see Figure 8).

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 S65-171).

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 3 GPM is

flowing through the valve.

2. Remove the top 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 stop/check valves are fully open (the slotted stem must extend out approximately

1/4" (6 mm) from the valve 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.

Bellows length

should be 1-1/8"

to 1-5/16"

Figure 8

TOP CAP &

THERMOSTAT

5/16"

ROD

Bradley EFX 8 Thermostatic Mixing Valve with Optional Cabinet

Installation and Maintenance Instructions Model S19-2000 Series

9Bradley Corporation • 215-1291 Rev. L; EN 07-903A 5/14/08

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 outlined procedure.

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

Solution: Dirt and debris have collected on the stop/check valve seat, limiting the movement of the

stop/checks. Remove the stop/checks, clean the seat and reassemble the valve (see Figure 9). The

stop/checks may also be disassembled and cleaned. The components may be brushed with a small wire

brush to remove debris. If the stop/checks need to be replaced, contact your Bradley representative

and ask for Stop/Check Valve (part number S27-102 — Rough Brass, S27-292A — Chrome).

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 S65-170).

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 proce-

dure.

Cause: Recirculation is not balanced.

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

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

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

the mixing valve to less than 3 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.

Clean the valve

seats and other

components with

a small wire

brush.

STOP/CHECK

VALVES

Figure 9 S19-2000

Bradley EFX 8 Thermostatic Mixing Valve with Optional Cabinet

Model S19-2000 Series Installation and Maintenance Instructions

10 Bradley Corporation • 215-1291 Rev. L; EN 07-903A

5/14/08

EFX 8: Parts Breakdown and Service Kits (S19-2000)

Thermostat Kit S65-171

Item Qty. Description

12 1 Thermostat

13 1 O-Ring

14 1 O-Ring

O-Ring Kit S65-170

Item Qty. Description

2 1 O-Ring

3 1 O-Ring

13 1 O-Ring

14 1 O-Ring

Flexible Connection Lines for S19-2000EFX.

When used with S19-292 order P/N 269-653

(3 supplied with unit).

Piston & Liner Kit S65-172

Item Qty. Description

2 1 O-Ring

3 1 O-Ring

4 1 Liner

5 1 Spring

7 1 Piston

8 1 Spring

9 1 Overheat Screw

NOTES: As of November 2001, the piston (Item 7) has replaced the

seal holder and seal as a direct replacement.

As of June 2008, the brass control cap (item 15) has been

replaced by a plastic cap. All internal components are identical.

Center Section Kit S65-303

Item Qty. Description

2 1 O-Ring

3 1 O-Ring

4 1 Liner

5 1 Spring

7 1 Piston

8 1 Spring

9 1 Overheat Screw

10 1 Upper Seat

11 1 Pushrod

12 1 Thermostat

13 1 O-Ring

14 1 O-Ring

15 1 Control Cap

16 1 Set Screw

17 1 Label

18 1 Screw

27 4 1/4 Screw

NOTE: Kit numbers for rough brass finish

and standard range thermostat. Contact

Bradley for other configurations.

1Valve Body

O-Ring

Liner

Spring

7Piston

8Spring

9Overheat

Screw

10 Upper

Seat

11 Pushrod

12 Thermostat

13 O-Ring

14 O-Ring

15 Control

Cap

17 Label

18 Screw

Thermometer

21 Brass Tee (1/2")

Nipple 2" (1/2")

23 Supply Stop

24 Pipe Plug

25 Street Ell (1/2")

Street Ell (1/2")

27 1/4" Screw

(4X)

16 Set Screw

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