Powers ES200-400 User Manual

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The Series ES Hydroguard thermostatically blends hot and cold water to deliver tepid water to emergency fixtures, quickly compensating for temperature variations due to changes in inlet temperature or pressure. Powers’ exclusive Dual Internal By-Pass* ensures cold water flow in the event of a valve failure or loss of hot water.

* US Patent 6,575,377

DESCRIPTION

WARNING: TO INSURE THE ACCURATE AND RELIABLE OPERATION OF THIS PRODUCT, IT IS ESSENTIAL TO:

• Properly size each valve based on the individual application

• Properly design the recirculation system to minimize pressure and temperature variations

• Conduct an weekly maintenance program to insure proper operation of all critical components

FAILURE TO COMPLY WITH PROPER INSTALLATION INSTRUCTIONS COULD CONTRIBUTE TO VALVE FAILURE, RESULTING IN INJURY OR DEATH.

TECHNICAL INSTRUCTIONS

Hydroguard®ES Series Emergency Tempering Valves

with Dual Internal Cold Water By-Pass

ES200 and ES400

Form TI ES200/ES400 v2

Table 1, Capacity Tables, present the Hydroguard discharge capacity in gpm and Ipm for various pressure differentials (the difference between the lowest inlet pressure and the discharge pressure at the Hydroguard).

SIZING

Operating

Maximum Pressure. . . . . . . . . . . . . . . . . . . . . . 125 psig (861.25 kPa)

Maximum Hot Water Temperature . . . . . . . . . . . . . . . . . 180°F (82°C)

Approach Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15°F (8°C)

Temperature Adjustment Range . . . . . . . . 60°F (15°C) - 95°F (35°C)

Factory Set Temperature . . . . . . . . . . . . . . . . . . . . . . . . 85°F (29°C)

Compliance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ANSI Z358.1 1998

Note: Set point cannot be less than the cold water temperature. For best operation, hot and cold water should be at least 15

°F (9.4°C) from desired set

point.

SPECIFICATIONS

Table 1- Capacity Tables

Flow Capacity in US gpm at 50-50 Mixed Ratio

Model Min. Flow Pressure Drop Across Valves in psi

Rate 5 10 20 30 45 60 75 ES200 3.0 gpm 15 20 30 36 45 52 58 ES400 3.0 gpm 27 38 54 66 80 93 104

Flow Capacity in lpm at 50-50 Mixed Ratio

Model Min. Flow Pressure Drop Across Valves in kP

Rate 34 69 138 207 310 414 517 ES200 11.0 lpm 57 76 113 136 170 197 220 ES400 11.0 lpm 102 144 203 249 305 352 393

By-Pass flows will vary depending on supply conditions and application.

Model ES400

Typical Flow

Hot and cold water supplies enter Hydroguard at indicated ports, (see Figure 1) then flow past their respective balanced poppet plug and seats. Next, hot and cold water flow is directed to the mixing chamber where the thermostatic actuator is located. Temperature adjustment screw moves the actuator/poppets to determine the discharge temperature. With a rise in discharge temperature due to pressure or temperature fluctuation on the inlet, the actuator expands, decreasing hot water and increasing cold water flow to maintain the valve set point. The reverse occurs with a drop in discharge temperature.

• Cold water supply failure – causes actuator to expand allowing the motor to seat hot water poppet.

• Hot water supply pressure failure – causes actuator to contract opening cold water bypass ports. Secondary bypass mechanism opens upon failure of actuator or hot water.

OPERATION

Mixing Chamber

Body

Balanced Hot Water Poppet

Hot Water

Primary By-Pass Spring

Secondary By-Pass

Temperature Adjustment Screw

Adjustment Locking Screw

Thermostatic

Actuator

Cold Water By-Pass Ports

Cold Water

Balanced Cold Water Poppet

Motor Return Spring

Figure 1

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TI ES200/ES400 v2 Page 2

TAG DESCRIPTION

1 Etched Bonnet 2 Adjustment Screw 3 Bonnet Screw 4 Set Screw 5 Bonnet Gasket 6 Motor Housing 7 Housing Bolt 8 Temp Limit Spacer 9 Spacer Set Screw 10 Overload Assy 11 Overload “O” Ring 12 Funnel 13 Thermal Actuator 14 Funnel “O” Ring

TAG DESCRIPTION

15 Motor Adapter 16 Motor Adapter “O” Ring 17 Hot Water Poppet 18 Pressure Relief Spring 19 Pressure Relief Poppet 20 CW Bypass Plug 21 Bypass Spring 22 Cold Water Poppet 23 Return Spring 24 Body “O” Ring 25 Body 26 Body Cap “O” Ring 27 Body Cap

ES200 KIT NUMBER ES400 KIT NUMBER DESCRIPTION CONTAINS ITEMS:

390-573 390-574 Actuator Replacement Kit 5,13,15,16,24 390-575 390-576 Poppet Replacement Kit 15-24,26 390-577 390-578 Gasket and “O” Ring Kit 5,11,14,16,24,26

PARTS LIST

REPAIR KITS

RECIRCULATION

The mixing valve should be mounted as close as possible to the fixture(s) that it serves.

If the valve is some distance from the hot water source, recirculation may be required to keep the hot water supply within specified limits.

CAUTION: Use care in installing the cold water line such that it does not pass through areas with high ambient temperatures or become exposed to direct sunlight.

Powers ES Series Tempering Valve Hot Water Recirculation

Tempered Water to Fixtures

Cold Water

Hot Water Return

Hot Water

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TI ES200/ES400 v2 Page 3

CALIFORNIA PROPOSITION 65 WARNING

WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

(Installer: California law requires that this warning be given to the consumer.)

For more information: www.wattsind.com/prop65

What to look for if:

• The flow of water is less than desired.

a. Stop valves or supply to Hydroguard not fully open. b. Clogged checkstop strainer screens. c. Accumulation of lime deposits around valve seats. d. Low supply pressures or unusual supply temperatures.

• The flow of water is completely shut off.

a. Stop valves or supply valves are completely closed. b. Valves downstream from Hydroguard fully closed. c. Loss of cold water supply pressure.

MAINTENANCE AND TROUBLESHOOTING

5. Remove four (4) body screws and carefully remove lower body.

6. Slide out hot water poppet and bypass assembly.

7. Loosen plug on bottom of lower body. Remove plug, spring, and cold water poppet.

CAUTION: The plug is under spring pressure. Use care when removing.

8. Remove the “O” rings from the body.

• Inspection:

1. Inspect the body for any damage, deposits, or pitting -

clean or replace as necessary.

2. Check the poppets, springs, and bypass assembly for any

damage, deposits, or pitting. If any component appears

stuck, worn, or damaged, replace all the internal parts.

3. Check the actuator for proper operation. Measure and

note the entire length of the actuator at room temperature or mark the stem with a piece of tape. Place the actuator in hot water (105-115

°F) for one (1) minute. Measure the

length of the actuator. Actuator should be at least 1/8" longer than when at room temperature.

DISASSEMBLY AND REPAIR INSTRUCTIONS

INSTALLATION INSTRUCTIONS

1. IMPORTANT: Flush all piping thoroughly before installing.

2. Locate the Hydroguard as close as possible to the fixture being supplied.

Note: Remove body screws to turn outlet to any of four positions. The Hydroguard body can be rotated to any position due to the union inlets. Install thermometer in discharge using supplied fittings.

Make certain the body screws and unions are tightened securely to prevent leakage.

3. CAUTION: When the Hydroguard supplies tempered water to self-closing and/or solenoid valves, provide a shock absorber (Powers Part No. 460-353) on the discharge line. This protects the Hydroguard thermostatic motor from damage by water shock waves generated by the quick closing valves.

4. Consult proper medical/safety authorities for the opti-

mum temperature for your application. Before use, check for proper discharge temperature. Reset if necessary. Valve is preset for 85

°F (29.4°C).

ADJUSTMENT AND TESTING

1. Replace adjustment screw and set to proper temperature. Open all fixtures and verify all outlet temperature is adequate.*

2. Verify adequate flow rate from fixtures.

3. Close the cold water checkstop. Verify that flow shuts down immediately.

4. Open cold water checkstop, and close hot water checkstop. Verify adequate flow from fixture(s).

5. Open hot water checkstop, verify temperature returns to set temperature.

6. Record test data on maintenance tag which should be attached to the valve.

*Contact factory for high temperature readjustment

procedure.

Consult proper medical/safety authorities for optimum temperature for your application. Before use, check for proper discharge temperature. Reset if necessary.

Per ANSI Z358.1-1998, Emergency fixtures should be tested weekly. Any unit failing any of the above tests should be repaired or replaced immediately.

Due to the safety nature of this product, we recommend removal of the valve and a full inspection of all components whenever the valve is disassembled for any reason.

• Disassembly:

1. Close supply valves and/or checkstops. Take apart unions between the valve and the checkstops.

2. Remove valve from its outlet piping. Work should be performed on a clean table or workbench. Use caution

when disassembling the valve as there are several small springs and parts inside.

3. Remove bonnet screws with a 3/15" hex wrench.

4. Remove bonnet and actuator.

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TI ES200/ES400 v2 Page 4

Insert the cold water poppet, spring, and plug into the bottom of the lower housing.

Carefully insert the bypass assembly into the body.

Install the hot water poppet using care not to disturb the springs or bypass assembly.

REASSEMBLY

Lubricate the body “O” ring, and place in groove on body. Tighten housing bolts.

Place actuator into motor adaptor

Install bonnet onto valve with 43/16” screws.

Form TIES200/ES400 v2 0335 EDP # 6508880 Printed in USA

USA Phone: 1.800.669.5430 • Fax 1.877.459.3440

Canada Phone: 1.888.208.8927 • Fax 1.888.882.1979

www.powerscontrols.com