model 8710 - haws corporation · haws corporation performance series model 8710 tempered water...

HAWS® P/N 0510000453 Rev.5 10/19 Model 8710 of 32

1455 Kleppe Lane Sparks, NV 89431-6467 (775) 359-4712 Fax (775) 359-7424 E-mail: [email protected] Website: www.hawsco.com

No. 0510000453(5)

Model 8710

Outdoor Tempered Water Shower and Eyewash System General Area Classification & Class I Division 2

INSTALLATION, OPERATION &

MAINTENANCE INSTRUCTIONS

mailto:[email protected]

http://www.hawsco.com/


DISCLAIMER

IMPORTANT Read this installation manual completely to ensure proper installation, then file it with the owner or

maintenance department. Compliance and conformity to drain requirements and other local codes and

ordinances is the responsibility of the installer.

Separate parts from packaging and make sure all parts are accounted for before discarding any

packaging material. If any parts are missing, do not begin installation until you obtain the missing parts.

Flush the water supply lines before beginning installation and after installation is complete. Test the unit

for leaks and adequate water flow. Main water supply to the emergency fixture should be “ON” at all

times. Provisions shall be made to prevent unauthorized shutoff. Please refer to the enclosed

instructions for flushing the unit prior to use.

The ANSI Z358.1 standard requires an uninterrupted supply of potable water. Haws plumbed Model

8710 requires the user to supply 45-90 PSI flowing water pressure to the unit inlet connection.

The inspection and testing results of this equipment should be recorded weekly to verify proper

operation. This equipment should be inspected annually to ensure compliance with ANSI Z358.1.

Installation and maintenance of this system must be completed by a qualified plumber and electrician in

accordance to the information contained in this installation manual and in compliance with all national

and local codes. When making electrical connections, be sure to follow all lockout-tag out safety

procedures.

It is recommended that all water supply and electrical connections be made at temperatures above

freezing (32ºF (0ºC)). Failure to do so may result in product and or property damage.

For technical support, contact: Haws Services | (800) 766-5612 | www.hawsco.com/services


TABLE OF CONTENTS Outdoor Tempered Water Shower and Eyewash System ....................................................................... 1 General Area Classification & Class I Division 2 ..................................................................................... 1 DISCLAIMER ................................................................................................................................................ 2 TABLE OF CONTENTS ............................................................................................................................... 3 DESCRIPTION OF PRODUCT ..................................................................................................................... 5 PERFORMANCE SERIES 8710 MODEL CONFIGURATIONS ................................................................... 5 SHIPPING, HANDLING AND STORAGE .................................................................................................... 6 INSTALLATION PROCEDURE .................................................................................................................... 7

Checklist for start-up ............................................................................................................................ 10 Tank Control .......................................................................................................................................... 12 Alarm Modes – US & [CAN] .................................................................................................................. 12 Messages................................................................................................................................................ 13 Real Time Clock (RTC) .......................................................................................................................... 13 Flow Alarms ........................................................................................................................................... 14 Fault Condition Notification ................................................................................................................. 14 Maintenance Required Notification ..................................................................................................... 14 Space Heater .......................................................................................................................................... 15 Summer Mode ........................................................................................................................................ 15 Tank Monitor .......................................................................................................................................... 15 Tank History ........................................................................................................................................... 16 Setting Current Time and Date on the Controller .............................................................................. 16

PREVENTATIVE MAINTENANCE ............................................................................................................. 17 Weekly .................................................................................................................................................... 17 Monthly ................................................................................................................................................... 18 Quarterly ................................................................................................................................................. 18 Annually.................................................................................................................................................. 18

SYSTEM DRAIN AND CHECK PROCEDURE: ......................................................................................... 20 MAINTENANCE, TESTING, REPAIR ........................................................................................................ 23

Booth ................................................................................................................................................... 23 Double Swinging Doors .................................................................................................................... 23 Blending Valve System ..................................................................................................................... 23 Combination Shower/Eyewash ........................................................................................................ 24 Freeze and Scald Valve ..................................................................................................................... 24 Y-Strainers .......................................................................................................................................... 24

TROUBLESHOOTING ................................................................................................................................ 25 SPARE PARTS ........................................................................................................................................... 26 DRAWINGS ................................................................................................................................................ 29

Generalized Installation Drawing (8710.21.31-GA) ............................................................................. 29


Generalized Electrical Schematic (8710.2X.31-E) .............................................................................. 30 Generalized Piping and Instrumentation Diagram (8710.21.31 & 8760.21.31 P&ID) ....................... 30

LIMITED WARRANTY ................................................................................................................................ 32


DESCRIPTION OF PRODUCT

Haws Corporation Performance Series model 8710 tempered water booth is a foam-insulated, fiberglass

encapsulated structure. The bright yellow fiberglass is waterproof, chemically resistant, and protected with

UV inhibitors for a long-lasting finish. Large green graphics identify the building as an emergency

shower/eyewash station and assist in guiding the user to the double swing doors. The interior is heated

and illuminated for user safety and comfort.

This system includes several configurations; please reference the Performance Series 8710 Model

Configurations table shown below.

Hot water, generated via 4kW or 6kW immersion heater (determined by tank size), is stored in a chosen

tank size of 119, 120, 200 or 330 gallons. Hot and cold water are mixed with an engineered blending

system to provide warm water for one or two (in the case of a 330-gallon tank) combination shower/eyewash

unit(s) running at a maximum of 30 GPM. The ASSE 1071 certified blending system is a safe, prepackaged,

fully engineered and tested system for blending large volumes of hot and cold water specifically designed

for emergency showers and eyewashes. The system provides multiple levels of protection to prevent

scalding, including a high temperature shutoff valve. Also included is a pressure relief cold-water bypass

that allows full cold flow in the event of a hot water shut off. There are no electrical components in the

blending system.

The 8710 booth includes a Haws® combination shower and eyewash that is protected with freeze and scald

valves. A flow switch activates the alarm system when the shower and/or eyewash are in use. The alarm

system includes both visual and audible alarm and a silencing circuit with auto reset. Dry contacts are

provided for remote alarm hookup.

PERFORMANCE SERIES 8710 MODEL CONFIGURATIONS

8710.2X.3XX 8710 .2X .3X X

.21 119 Gallon .31 NEMA 4 Blank (No Number) = Standard 480V, 3PH

.22 120 Gallon .32 C1D2 1 208V, 1PH

.23 330 Gallon

2 208V, 3PH .25 200 Gallon 3 240V, 1PH

4 240V, 3PH 5 600V, 3PH


SHIPPING, HANDLING AND STORAGE

Performance Series Model Description Dimensions

W x L x H Weight Dimensions W x L x H (Crated)

Weight (Crated)

8710.21.3X Outdoor Tempered Water Shower and Eyewash System

60” x 108” x 102”

2800 lbs.

69” x 122” x 106”

3700 lbs. 8710.22.3X 2800 lbs. 3700 lbs. 8710.23.3X 3200 lbs. 4100 lbs. 8710.25.3X 2850 lbs. 3750 lbs.

Recommended Equipment, Materials and Supplies to be provided by Installer:

• Concrete slab rated to support a minimum of 6,000-pound load requirement.

• (4) 3/4” minimum diameter by 1-1/2" minimum length anchor bolts with washers.

• A forklift capable of lifting 5,000 lbs. should be utilized to transport the unit from truck to site. The

unit should be lifted from the rear, or equipment end, and low to the ground.

• Electrical Supply Materials (if applicable).

• Plumbing Supply Materials (if applicable).

• Freeze protection equipment for the water supply leading up to the enclosure (if applicable).

Storage The unit should be stored in a clean, dry place until ready for installation unless otherwise specified.

WARNING: DO NOT connect power before supply plumbing. Connections should be performed by a certified electrician and plumber only.


INSTALLATION PROCEDURE

a. Remove unit from crate.

b. The unit should be secured on a level site, using the supplied brackets and suitable anchoring

devices. Suggested anchoring devices are 3/4” minimum diameter by 1-1/2" minimum length

anchor bolts with washers.

c. If the booth is to be placed over a drain, the drain should be able to handle a flow of 35 GPM;

otherwise, the slab should be made to allow the water to drain out the sides and away from the

booth (see Figure 1). The unit discharges hundreds of gallons of water, which can cause significant

property damage if not drained properly.

Figure 1. Example of Slab with Drain Trough

WARNING: Failure to allow water to drain may result in premature failure of booth, voiding of product warranty, and property damage. (See System Drain and Check Procedure on page 20)

d. The expansion tank should be pre-charged with compressed air to a pressure equal to the water

supply pressure. An air fitting (Schrader valve) is accessible on the top of the expansion tank,

under the plastic cap (see Figure 2).


Figure 2. Top of Expansion Tank

e. The connection provided for the water supply is a 1-1/2” NPT union. Supply lines are required to

be capable of supplying 30 GPM of potable water at a dynamic pressure of 45-90 psi. The water

supply line should run for a few minutes prior to connection to eliminate any debris before it enters

the equipment.

f. Electrical supply connection must be made to the disconnect switch (see Figure 3).

Figure 3. Disconnect Switch Junction Box

CAUTION: Do not apply power to the unit until all water connections are made and the tank and piping are full of water.

g. Once all water and power connections are made, open the supply water inlet valve and fill the

system. While water is flowing into the system, open the emergency shower to facilitate air removal

from the system. After water flows freely from the shower for several minutes, turn the shower off.

Inspect plumbing for leaks and repair as necessary. During transit, some plumbing may have

become loose, allowing water to leak from the threads.


CAUTION: Before turning on the power, close all electrical boxes.

h. At this point the power can be turned on. The tank water must be allowed to heat up before the

blending system will function properly. Heating can take up to 12 hours, depending on supply water

temperature and the size of immersion heater and tank. The area/alarm light may blink until tank

temperature set point is reached.

NOTE: The emergency shower or eyewash (see Figure 4) should be utilized for testing of the blending

system. Refer to the Maintenance, Testing, and Repair section of the TWBS.HF Blending System Manual

document for proper adjustment and operation.

Figure 4. Eyewash

i. The internal space heater has an adjustable thermostat, which is factory set at 70°F (21°C).

WARNING: System is not freeze protected without an energized electrical connection. It is recommended that installation be completed when ambient temperature is above freezing.


Checklist for start-up

CHECKLIST Complete OK

Inspector Initials

Pre-connection Check Check all components for any connections or connectors that may have loosened during

shipping.

System Flush (All Electrical Power off for System Flush) Verify that a minimum of 45 psi and maximum 90 psi is supplied to the inlet of the hot water

tank.

Drain is attached and able to handle a flow of 35 GPM. System water supply is connected and all water supply valves opened. Water is clear and free of any contamination, particles, or discoloration. Connections System is charged with water and all air is evacuated from the system. Expansion tank Schrader valve is charged with air equal to water static inlet pressure. Connect remote monitoring via plant control system (if applicable). Applying Power to the System Verify that the proper voltage is present. Verify that equipment ground is properly connected. Apply power to the system. Verify that the space heater thermostat is set to 70º F (21ºC). Increase the thermostat set

point and verify that the heater is producing heat. Return the thermostat to 70ºF.

The tank heater set point is preset in the program. It may take up to 12 hours for the tank to

reach the operating temperature. Once the tank has reached operating temperature for a

minimum of 1 hour, press the “↑” arrow and record these values in the chart provided in the

Tank Monitor section of the program narrative included in this manual.

Verify that interior and exterior lights are illuminated (if equipped). The exterior light may

flash off for 1 second at 5 second intervals until the tank has reached operating

temperature. See Logic Narrative for more information.

HAWS® Shower and Eye/Facewash Flow water through an eyewash or shower. Verify that the exterior light flashes at 1 second intervals and that the audible alarm sounds. Press the alarm silence button and verify that the exterior light is flashing, and the audible

alarm is silent.

Deactivate the shower or eyewash that is active, verify that the exterior light is not flashing,

and that the audible alarm is silent.

Blending Valve When shower is activated read the center temperature gauge directly above the blending

valve to ensure to the readout is 85ºF (29ºC) ± 5º.

Programmable Logic Controller Display Set the current time and date in the controller (see instructions on page 16).


LOGIC DIAGRAM AND NARRATIVE

The program allows for monitoring and controlling booth and tank temperatures. When no faults are

present, the tank temperature, booth temperature, tank heater status, and flow status are displayed (see

Figure 5). There are alarm points that are continuously monitored. These alarms are shown on the display

as long as the fault is active. Alarm conditions may also be monitored by connecting to a Distributed Control

System (DCS) via interposing relays and terminals provided. See generalized electrical schematic for

details (page 30). A fault history is also provided to assist in monitoring the system performance.

Additionally, the tank heater performance can be monitored to assist in determining when maintenance is

required.

Figure 5. PLC Display

Accessing the different functions is accomplished by depressing the appropriate key(s) on the display. The

table below lists the key functions:

Key Function ← Display Fault History ↑ Display Tank Heater Monitor → Display Current Time ↓ Display Current Date 0 Reset High Tank Temp Alarm

0 & 2 Local Alarm Light Function (Off) 1 Reset High Booth Temp Alarm

1 & 2 Start Summer Mode 1 & 3 Local Alarm Light Function (On) 3 & 4 Return from Summer to Normal Mode

Shift + 5 View Time to Preventative Maintenance Shift + 9 Toggle Preventative Maintenance Feature On/Off


The following table lists the inputs and outputs used in the system.

NOTE: For model specific program, please contact Haws Services at 1-800-766-5612.

Input Function Output Function I-00 Flow Switch * Q-00 Tank Heater Contactor I-01 Horn Silence Button * Q-01 Space Heater Contactor * I-02 Level Switch Q-02 Alarm Light * I-03 Booth Thermostat * Q-03 Horn *

AI-02 Tank Temperature Thermocouple Q-04 (TC Q-00) Customer Contact (Trouble) AI-03 Booth Temperature Thermocouple * Q-05 (TC Q-01) Customer Contact (Flow) *

*Not used on some models

The program consists of a series of charts (sub-routines) that are grouped according to function. Each

chart will be discussed in the following sections.

Tank Control When the tank temperature is below 163°F (72°C), or 144ºF (62ºC) for Canada, the tank heater contactor

will close and the heater elements will be energized. When the temperature rises above 166°F (74°C), or

146ºF (63º) for Canada, the contactor will open and the element will become de-energized.

A low-level condition or an over temperature condition (that has not been addressed) will prohibit the

contactor from closing even if the temperature is below the set point. If the tank thermocouple reading falls

below 32°F (0°C) a potential thermocouple failure is present and the tank heater contactor will not close.

The customer trouble alarm contacts are monitored in this section of the program. The following conditions

will de-energize output Q-04 (customer contact trouble) when a potential fault is present:

Alarm Modes – US & [CAN] Low Booth Temperature under 47°F (8°C) & [47°F (8°C)]

High Booth Temperature over 85°F (29°C) & [85°F (29°C)]

High Booth Temperature over 95°F (35°C) & [95°F (35°C)] REQUIRES MANUAL RESET

Low Tank Temperature under 155°F (68°C) & [135°F (57°C)]

High Tank Temperature over 168°F (76°C) & [150°F (66°C)]

High Tank Temperature over 175°F (79°C) & [155°F (68°C)] REQUIRES MANUAL RESET

Low Tank Level

NOTE: Each alarm mode will display an alarm message on the PLC display and only the external light will

flash once every 5 seconds. The high temperature alarms for the tank and booth are designed to give a

warning by displaying an alarm message, changing the state of the customer contacts, and flashing the


exterior light once every 5 second- intervals, 5 degrees before the temperature rises to a point that requires

a manual reset of the heating equipment. Should the alarm not be addressed before reaching the high set

point, then the system will require additional attention and a manual reset.

Messages The display messages are controlled by the program. When no alarm modes are present, the display will

present the following conditions:

Tank Heater On (when active)

Flow Switch On (when active)

Tank Temperature

Booth Temperature or Summer Mode Active

When a single alarm mode, also called fault condition, is present, the display will indicate which alarm mode

is present. If more than one alarm exists, the display will cycle through each alarm at 4 second intervals.

Each message will automatically clear when the condition is no longer active or when the corrective action

has been taken. This program also records a message to the “Fault History” chart, which will assign the

time and date when the alarm occurred using the Real Time Clock (RTC) module. Timer counter (TC-05

in conjunction with TC-06) will keep track of the 4 second timing intervals and advance the message display

to the next active alarm (if present).

Real Time Clock (RTC) The RTC module is used to record the date and time for the Fault History (alarm modes) and auto-return

to Winter Mode.

NOTE: If “NO RTC” is shown on PLC display (see Figure 6), remove RTC module by disconnecting from

PLC, re-attach, and cycle the power. If “NO RTC” is still shown, please contact Haws Services at 1-800-

766-5612 as you may need a replacement part.

Figure 6. No RTC - Real Time Clock Display


Fault History

The fault history chart keeps track of the time and date of the last occurrence of each alarm. When the “left

arrow” key is depressed, the time and date of each alarm will be listed on the display. There will be a 4

second delay before the first alarm is displayed. Each alarm will be listed for 4 seconds if the “left arrow”

key is depressed. The time and date of each alarm are stored in registers R-004 through R-021. Once the

“left arrow” key is released the display will return to the normal condition display if no alarms are present.

If there are alarm modes in the system, the display will return to the alarm mode display when the “left

arrow” key is released.

Flow Alarms Flow is monitored via a flow switch connected to I-00. When the flow switch is activated, output Q-05

(customer contact flow) will de-energize and engage the customer flow contacts. The flow switch will also

energize the horn via Q-03. The exterior light is also controlled in this chart. The exterior light remains on

during normal operation. When flow is detected, the exterior light will flash on and off at 1 second intervals.

Fault Condition Notification If a fault is active and there is no flow detected, the light will flash once every 5 seconds. This function

gives the user an indication of a fault condition if the unit is not connected to plant Distributed Control

System (DCS) via dry contacts provided on the electrical panel layout. To properly connect DCS to dry

contacts, please refer to the model-specific electrical schematic. It is possible to override this function by

simultaneously depressing the “0” and “2” key. Flag F-026 controls this function. It is set as retentive to

maintain the selection after a power outage. These intervals are controlled by TC-00 through TC-04.

NOTE: If a model-specific electrical schematic is not present or additional information is required to connect

DCS to unit, please contact Haws Services at 1-800-766-5612.

Maintenance Required Notification On units containing the “Preventative Maintenance Required” notification feature, the area light will flash

once every 10 seconds when preventative maintenance is required. The notification is factory set to activate

after one year of operation and reactivates each following year.

The operating procedure is as follows:

• To view remaining time until Preventative Maintenance is required, press Shift + 5

• To toggle Preventative Maintenance Required feature on/off, press Shift + 9

o To reset the timer, turn the Preventative Maintenance Required feature off then back on.

The timer will start from 0.

o On/off toggle can also be triggered by the following push button sequence using the alarm

horn silence button.


Press 3 times within 2 seconds, wait 2-5 seconds, and press 3 times within 2

seconds

o Activation of the Preventative Maintenance Required Feature is indicated by 3 short flashes

of the area light accompanied by 3 blips of the alarm horn.

o Deactivation of the Preventative Maintenance Required Feature is indicated by 4 short

flashes of the area light accompanied by 4 blips of the alarm horn.

Space Heater This space heater control program controls the function of the space heater on units designed for use in

non-classified locations. The booth thermostat is connected to I-03, which will engage the space heater

contactor (Q-01). An excessive booth temperature may cause the scald valve to relieve if the booth

temperature approaches 95°F (35°C). The space heater will not operate if the controller detects a

temperature over 85°F (29°C). The space heater will also not operate if the unit has been placed in

“Summer Mode”. If the thermocouple connected to AI-03 detects a temperature over 85°F (29°C), a

message will be displayed indicating that the booth has exceeded 85°F (29°C). This alarm will automatically

reset if the temperature falls to below 83°F (28°C).

A booth temperature over 95°F (35°C), F-011 will set and trigger the “Booth High Temperature +10” fault

alarm. This alarm requires someone to physically reset the alarm by depressing the “1” key on the keypad

after the temperature falls below 90°F (32°C).

Summer Mode The summer mode chart controls the “Summer Mode” function to override the space heater controls.

Simultaneously pressing the “1” and “2” key will activate “Summer Mode” and simultaneously pressing the

“3” and “4” key will deactivate this function. If a temperature less than 40°F (4°C) is detected by the

thermocouple connected to input AI-03, “Summer Mode” will automatically deactivate by setting flag F-025.

This function is also deactivated automatically between September 1 and April 1.

Tank Monitor The tank monitor chart provides a means of monitoring the tank heater performance. This chart records

the actual amount of time that the tank heater contactor is on via registers R-050 through R-052. Counter

TC-14 cycles the chart through the last 3 on/off cycles of the tank heater contactor. TC-13 records the

actual on time of the contactor. When the unit is initially placed in service and has reached operating

temperature for several hours, the on/off cycles should be recorded in the table below. Pressing the “up

arrow” key will display the last three cycles. Each cycle will be displayed for 4 seconds as long as the key

is depressed.

CYCLE ON/OFF TIME

1 2 3


These values can be checked on a routine basis. If the amount of time that the tank heater is on has

increased, it may be an indication that the tank heater needs service or repair.

Tank History This tank history chart controls the display messages recorded by the tank monitor chart. TC-15 sets the

time that each message is displayed. TC-16 is used to increment from “Heater on time 1” through “Heater

on time 3”.

Setting Current Time and Date on the Controller 1. Press the “SHIFT” and “OK” buttons to enter the menu.

2. Press “4” to enter setup.

3. Press “1” to set date or “2” to set time.

4. After date or time is set, press the “SHIFT” and “↑” key to return to setup menu.

The Time and Date can be verified by pressing the “→” or “↓” keys while in the normal operating screen.


PREVENTATIVE MAINTENANCE

Weekly • Verify the tank temperature readout on the display reads 165ºF ± 2ºF (74ºC ± 1ºC) and 145°F ±

2ºF (63°C ± 1°C) for Canada (see Figure 5).

• Verify area lights located inside and outside the booth are operational.

• Verify space heater is functioning by raising space heater thermostat to a set point above the

ambient temperature. Non-Hazardous rated units utilize a wall mounted thermostat and Hazardous

Area rated units utilize a heater mounted thermostat (see Figure 7). After several minutes the

space heater should begin to emit heat. Return space heater thermostat to 70ºF (21ºC).

Figure 7. Wall Mounted Thermostat (Left) and Space Heater Mounted Thermostat (Right)

• Verify shower and eyewash flow per ANSI requirements.

• Verify temperature gauge on center pipe of blending valve (see Figure 8) reads 84ºF ± 5ºF (29ºC

± 2ºC) flowing.

Figure 8. Blending Valve


Monthly • Verify eyewash flows. Alarm light and horn should activate when water is flowing. Verify that

remote alarms connected to plant controls are functioning.

• Verify shower flow. Alarm light and horn should activate when water is flowing. Verify that remote

alarms connected to plant controls are functioning.

• Check for evidence of leakage on freeze and scald valves.

• Verify correct operation of Blending valve. See Maintenance, Testing, and Repair section located

on page 23.

Quarterly • Flush Y–strainers (if installed)

Annually • Check tank heater for excessive mineral build up on heating coils. Clean or replace if necessary.

• Check operation of tank level switch (see Figure 9).

• Check condition of tank anode(s). Replace if necessary.

• Drain tank and verify level switch operation.

Figure 9. Level Switch

• All emergency showers and eye/face washes shall be inspected annually to assure conformance

of ANSI Z358.1. This includes, but not limited to, proper installation, accessible locations, proper

flow rate and temperature of flushing fluid. Please refer to the most current standards document

for more information.


NOTE: If the blending valve temperature reading is incorrect, adjust the blending valve by turning the

socket head cap screw located on the bottom of the center section of the valve body. Turning the screw

clockwise will lower the outlet temperature, while counterclockwise will raise the outlet temperature (see

Figure 10). Maximum outlet temperature is approximately 85°F. Outlet temperature will be measured most

accurately by the temperature gauge when water is flowing through the valve.



SYSTEM DRAIN AND CHECK PROCEDURE:

WARNING! System contains HOT water! Failure to DISCONNECT POWER AND ALLOW WATER IN HOT WATER TANK TO COOL sufficiently prior to draining may cause SEVERE INJURY OR DEATH! Always follow safe Lock Out – Tag Out procedures.

1. Turn off power at system disconnect switch. Lock Out and Tag Out according to your company’s

procedures.

2. Allow system hot water tank to cool below 100°F. Cooling could take many hours depending on

the ambient temperature. This process can be sped up by opening the shower and allowing the

blending valve to consume the hot water from the tank in the blending process. While the shower

is running, monitor the blending valve hot water inlet mechanical temperature gauge. When the

blending valve hot water inlet temperature gauge drops below 100°F WHILE FLOWING, the tank

temperature will be low enough to facilitate safe system draining.

a. If you will be running the shower to drop the tank temperature, this may be an appropriate

opportunity to also perform an annual test of the shower for ANSI Z358.1 compliance for

flow and pattern. If so, be aware that full 15-minute duration of tepid water may be modestly

shortened because the tank heater would not be operating.

3. When the hot water tank has cooled sufficiently, shut off the shower if it has been activated, and

turn off the main inlet water supply ball valve located inside the booth on the water supply line. This

is a lockable ball valve and Haws recommends locking this valve in the off position any time the

system is to be drained.

4. If necessary, connect a drain hose to the drain elbow outside the booth and route to a safe drain

location (or to the shower drain if unit is connected to a drain pipe). Do not open drain valve until

step 8.

5. Confirm that the power is disconnected.

6. Unscrew and remove the cover on the Level Switch (Figure 9).

7. Using a multimeter, check continuity across the wired terminal block between the pin labeled “C”

and the pin labeled “NC”. If the tank is full, as it should be at this point, the multimeter should

indicate electrical continuity exists between these two pins. (Note this Double Pole, Double Throw

switch has two identical terminal blocks and testing should be done on the one that is wired.) If the


tank has been heating properly, this test SHOULD be positive. If not, check the connections and

confirm the tank is full.

8. Open the system drain valve inside the booth near the drain outlet elbow in the back wall to drain

the system. To speed up draining, allow additional air into the tank by opening the ball valve on

the y-strainer in the hot water line and between the top of the tank and the hot side of the blending

valve. Continue until water stops draining.

9. Using a multimeter, check continuity across the wired terminal block between the pin labeled “C”

and the pin labeled “NC”. If the tank is empty (or below the level of the switch), as it should be at

this point, the multimeter should indicate NO electrical continuity exists between these two pins.

(Note this Double Pole, Double Throw switch has two identical terminal blocks and testing should

be done on the one that is wired.) If the multimeter indicates continuity DOES exist when the tank

is empty, the float may be stuck in the up position, which would require removal and cleaning and/or

replacement of the level switch.

10. For 119, 120, and 200-gallon tanks, remove and inspect the tank “sacrificial” anode rod(s) for

condition. These rods are designed to corrode and deteriorate before other less reactive surfaces

in the system, so some corrosion is normal. If the stainless-steel core can be seen or the rod is

grossly deteriorated, it should be replaced.

11. For 119, 120, and 200-gallon tanks, consider removing and inspecting the tank heater for excessive

mineral buildup on the heater coils. In particular, if significant debris is noticed in the drain water,

the local water is known to be “hard” or have high mineral content, or tank heater monitoring

indicates more and more frequent cycling, consider removing and inspecting/cleaning the

immersion heater. (Electrical disconnection and re-connection should be done by a qualified

electrician) Contact Haws Services for questions at 1-800-766-5612.

12. For 330-gallon tanks, the manway can be carefully removed to allow internal inspection of the

anode rods and immersion heater coils without removal. The tank bottom should also be inspected

for excessive debris and cleaned if necessary. NEVER ATTEMPT TO ENTER THE TANK!

CAUTION: When inspecting, take care not to drop anything in the tank as the glass lining in the tank could be permanently damaged! Remove and replace any excessively deteriorated anode rods. If inspection of the heater coils

indicates excessive mineral buildup, remove the heater for cleaning or replacement. (Electrical

disconnection and re-connection should be done by a qualified electrician.)

Contact Haws Services for questions at 1-800-766-5612.


13. Now is also a good time to open and clean out the Y-strainers (one in the inlet water line and one

in the hot water line).

14. When maintenance is complete and any components removed have been replaced, close the

system drain valve and the ball valve on the hot line Y-strainer if it was opened.

15. Unlock and open the inlet water supply valve and allow the system to fill. Opening the shower can

facilitate the exit of air from the system.

16. When the system is full of water, follow appropriate Lock Out-Tag Out procedures to unlock and

turn on the system disconnect switch to restore power to the unit.

17. Allow time for the system to come up to temperature (up to 12 hours) and ensure that all alarms

are clear.


MAINTENANCE, TESTING, REPAIR

Booth The foam insulated booth is coated with a fiberglass membrane. Should cleaning be necessary, a

mixture of water with household glass cleaner or rubbing alcohol can be used. For repairs to small

holes in the booth, Sikaflex 1A Construction Sealant, silicone, or a similar sealant can be used to

seal openings in the booth’s surface. If foam is exposed, a resin can be applied to protect it from

the elements. Damaged or removed sections of wood can be replaced with “Bondo” or other

shaping material, and other holes, gouges, or tears in the membrane can be patched using

fiberglass.

WARNING: Failure to patch or fill any holes or punctures to booth may result in premature failure of booth and void the product warranty.

Double Swinging Doors CAUTION: KEEP FINGERS AWAY FROM PINCH POINTS!

The doors have been adjusted at the factory with proper tension to allow for closure of doors.

Should doors need to be adjusted, tension can be changed by adjusting the spring tensioner at the

top or bottom of the spring loaded double acting hinges.

Blending Valve System The TWBS.HF blending valve system (see Figure 11) should require minimal amount of

maintenance. During scheduled testing, the temperature output should be checked for proper

adjustment. With the shower or eye/facewash activated the outlet temperature should be

approximately 80-85°F.


NOTE: For more information, refer to TWBS.HF the Blending Valve System O&M manual.


Combination Shower/Eyewash Verify shower and eyewash flow per ANSI requirements.

NOTE: If shower and/or eyewash does not flow per ANSI requirements or at all, consult Haws Services.

Freeze and Scald Valve Scald valve should be fully closed at 87°F (36°C) and be fully open at 95°F (35°C). Freeze valve

should be fully opened at 36°F (2°C) or below and closed at 42°F (6°C) or above.

NOTE: If valve does not fully open/close, check valve seat for debris or scale build up. If no debris or scale

is present, consult Haws Services at 1-800-766-5612.

CAUTION: Extreme hot/cold temperatures in booth may cause valves to open.

Y-Strainers Y-strainers should be blown out at the same time as scheduled testing of showers or monthly.

For technical support, contact: Haws Services | (800) 766-5612 | www.hawsco.com/services


TROUBLESHOOTING

TROUBLE REPAIR CHECKLIST Tank temperature too cold (set point 165°F (74ºC)

standard or 145ºF (63ºC) for Canada):

a) Used recently? Full recovery for each tank and

heater size below:

• 119 gallon/4kW, 10 hours




b) Check controller setting (165°F/145ºF). Check for

heater on display if below 165°F/145ºF.

c) Check controller for alarms.

d) Check heater circuit fuses F1.

e) Check control voltage and power supply fuses PFU

& CFU & SFU (for 600V)

Tank temperature too hot: a) Check controller setting.

b) Check alarms on controller.

Space heater not on when temperature is below 70°F

(21°C): a) Check thermostat setting.

b) Check controller display.

c) Check heater fuses F2.

d) Summer mode is activated.

Uneven water flow to eyewash: a) Eyewash must be level.

b) Clogged flow control. Clean or replace flow control

in eyewash head.

Insufficient water flow to eyewash or shower: a) Check water supply dynamic pressure (45-90 PSI).

b) Check and clean “Y” strainers.

c) Check ball valves. Must be open and unclogged.

d) Clogged flow control. Clean or replace flow control

in either eyewash or shower.

Clear exterior light off: a) Check LED.

b) Check fuses PFU & CFU & SFU (for 600V)

Exterior light does not flash and alarm does not sound

when shower or eyewash is activated:

a) Check flow switch actuation.

b) Check flow switch wiring connections.

c) Confirm that Q2 and Q3 are powered on controller.

Exterior alarm does not flash, but alarm is sounding

when shower or eyewash is activated:

a) Check LED.

b) Check wiring to light.

If “NO RTC” is present on PLC display: a) Reset by removing and reattaching module. If “NO

RTC” is still present, a replacement part is required.

If there are any questions that cannot be answered here, please consult: Haws Services | (800) 766-5612 | www.hawsco.com/services


SPARE PARTS

Please call Haws Services to order spare parts: 1-800-766-5612

FUSES PRIMARY (PFU), CONTROL (CFU) & SECONDARY (SFU)

VOLTAGE PFU CFU SFU (600V ONLY) QTY P/N TYPE QTY P/N TYPE QTY P/N TYPE

208V, 1PH 2 0210000298 FNQ-R-3

1 0210000646 LP-CC-2 - - - 208V, 3PH 2 0210000298 FNQ-R-3 240V,1PH 2 0210000298 FNQ-R-3 240V, 3PH 2 0210000298 FNQ-R-3 480V, 3PH 2 0210000070 FNQ-R-2 600V, 3PH 2 0210000756 FNQ-R-4/10 1 0210000758 FNQ-R-8/10

FUSES TANK HEATER (F1)

VOLTAGE 4KW TANK HEATER 6KW TANK HEATER

F1 F1 QTY P/N TYPE QTY P/N TYPE

208V, 1PH 2 0210000072 KTK-R-25 2 0210000292 JKS-40 208V, 3PH 3 0210000065 KTK-R-15 3 0210000072 KTK-R-25 240V, 1PH 2 0210000072 KTK-R-25 2 0210000293 JKS-35 240V, 3PH 3 0210000065 KTK-R-15 3 0210000164 KTK-R-20 480V, 3PH 3 0210000143 KTK-R-10 3 0210000143 KTK-R-10 600V, 3PH 3 0210000142 KTK-R-6 3 0210000143 KTK-R-10

FUSES SPACE HEATER (F2)

VOLTAGE 2.5KW SPACE HEATER

F2 QTY P/N TYPE

208V, 1PH 2 0210000164 KTK-R-20 208V, 3PH 3 0210000143 KTK-R-10 240V, 1PH 2 0210000065 KTK-R-15 240V, 3PH 3 0210000143 KTK-R-10 480V, 3PH 3 0210000142 KTK-R-6 600V, 3PH 3 0210000142 KTK-R-6


CONTACTORS TANK HEATER (CON1) AND SPACE HEATER (CON2)

VOLTAGE *USED FOR NEMA ONLY

CON1 CON2 QTY P/N SIZE QTY P/N SIZE

208V, 1PH 1 0210000196 24V, 40A 1 0210000196 24V, 40A 208V, 3PH 1 0210000335 24V, 21A 1 0210000335 24V, 21A 240V, 1PH 1 0210000196 24V, 40A 1 0210000196 24V, 40A 240V, 3PH 1 0210000335 24V, 21A 1 0210000335 24V, 21A 480V, 3PH 1 0210000335 24V, 21A 1 0210000335 24V, 21A 600V, 3PH 1 0210000335 24V, 21A 1 0210000335 24V, 21A

POWER SUPPLY

POWER SUPPLY VOLTAGE P/N 208V, 1PH 0210000189 208V, 3PH 0210000189 240V, 1PH 0210000189 240V, 3PH 0210000189 480V, 3PH 0210000190 600V, 3PH 0210000189

SPACE HEATER

2.5KW SPACE HEATERS

VOLTAGE NEMA4 CL1DIV2 PART NUMBER PART NUMBER

208V, 1PH 0210000305 0210000308 208V, 3PH 0210000306 0210000325 240V, 1PH 0210000307 0210000613 240V, 3PH 0210000177 0210000179 480V, 3PH 0210000321 0210000146 600V, 3PH 0210000178 0210000180

ADDITIONAL PARTS

DESCRIPTION P/N

AXION SHOWER HEAD SP829 AXION EYE/FACE WASH SP65 FREEZE VALVE SP158B SCALD VALVE SP157A PUSH FLAG 0002347420 PUSH FLAG GRAPHICS 0003167764 THERMOSTAT (NEMA4) 0210000282 PLC 0210000193 RTC (FOR PLC) 0280000652 DISPLAY (FOR PLC) 0210000194


Additional parts are shown in the following diagram.


DRAWINGS NOTE: Generalized drawings included here. Please find specific drawings for your unit model number

attached to the end of this manual or contact Haws Services.

Generalized Installation Drawing (8710.21.31-GA)


Generalized Electrical Schematic (8710.2X.31-E)


Generalized Piping and Instrumentation Diagram (8710.21.31 & 8760.21.31 P&ID)


LIMITED WARRANTY

HAWS warrants that this specific product is guaranteed against defective material or poor workmanship for a period of one year from date of shipment. HAWS liability under this warranty shall be discharged by furnishing without charge F.O.B. HAWS Factory any goods, or part thereof, which shall appear to the Company upon inspection to be of defective material or not of first class workmanship, provided that claim is made in writing to Haws within a reasonable period after receipt of the product. Where claims for defects are made, the defective part or parts shall be delivered to the Company, prepaid, for inspection. HAWS will not be liable for the cost of repairs, alterations or replacements, or for any expense connected therewith made by the owner or his agents, except upon written authority from HAWS, Sparks, Nevada. HAWS will not be liable for any damages caused by defective materials or poor workmanship, except for replacements, as provided above. Buyer agrees that Haws has made no other warranties either expressed or implied in addition to those above stated, except that of title with respect to any of the products or equipment sold hereunder and that HAWS shall not be liable for general, special, or consequential damages claimed to arise under the contract of sale. The emergency equipment manufactured by HAWS is warranted to function if installation and maintenance instructions provided are adhered to. The units also must be used for the purpose for which they were intended. This product is intended to supplement first-aid treatment. Due to widely varying conditions, Haws cannot guarantee that the use of this emergency equipment will prevent serious injury or the aggravation of existing or prior injuries.

NO OTHER WARRANTIES EXPRESSED OR IMPLIED ARE AUTHORIZED, PROVIDED OR GIVEN BY HAWS.

SHOULD YOU EXPERIENCE DIFFICULTY WITH THE INSTALLATION OF THIS MODEL PLEASE CALL: HAWS SERVICES: 1-800-766-5612

FOR CUSTOMER SERVICE: 1-888-640-4297

For more information on Haws products, see our website: www.hawsco.com

© 2018 Haws® Corporation – All Rights Reserved

HAWS® and other trademarks used in these materials are the exclusive property of Haws Corporation.

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