Haws 8720 Guide
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 2 of 22
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. Please refer to the enclosed instructions for flushing the unit prior to
use.
The ANSI Z358.1 standard requires an uninterrupted supply of flushing fluid. Flushing fluid should be
tepid per ANSI Z358.1.
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 major product and or property damage.
For technical support, contact:
Haws Services | (800) 766-5612 | www.hawsco.com/services
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 3 of 22
TABLE OF CONTENTS
DISCLAIMER................................................................................................................................................2
DESCRIPTION OF PRODUCT.....................................................................................................................4
SHIPPING, HANDLING AND STORAGE ....................................................................................................5
INSTALLATION PROCEDURE....................................................................................................................6
Checklist for start-up ..............................................................................................................................9
PROGRAMMABLE CONTROLLER ..........................................................................................................10
PREVENTIVE MAINTENANCE..................................................................................................................11
Weekly ....................................................................................................................................................11
Monthly...................................................................................................................................................11
Quarterly.................................................................................................................................................11
Annually..................................................................................................................................................12
MAINTENANCE, TESTING, REPAIR ........................................................................................................13
Booth...................................................................................................................................................13
Double Swinging Doors ....................................................................................................................13
Combination Shower/Eyewash ........................................................................................................13
Freeze and Scald Valve.....................................................................................................................13
TROUBLESHOOTING................................................................................................................................14
SPARE PARTS...........................................................................................................................................15
DRAWINGS ................................................................................................................................................16
General Arrangement Drawing (0580001082.D-GA)...........................................................................16
Electrical Schematic (0580001082.D-EL).............................................................................................18
Piping and Instrumentation Diagram (0580001082.D-PID)................................................................20
LIMITED WARRANTY................................................................................................................................22
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 4 of 22
DESCRIPTION OF PRODUCT
Haws Corporation Model 8720 overhead tank shower is a foam-insulated, aluminum skinned structure with
high visibility green chemical and UV resistant polyester-based powder coating. Large graphics identify the
building as an emergency shower/eyewash station and assist in guiding the user to the double swing doors.
The interior is illuminated green during standby and changes to white light when someone enters the doors,
or the shower or eyewash is activated. Optional space heating is available for user safety and comfort and
equipment protection.
Tepid water, generated via an immersion heater, is stored in the water tank. The tank temperature is
maintained at 85ºF ± 2ºF (29ºC ± 1ºC). The system is designed to flow a maximum of 30gpm for 15 minutes.
Flow is maintained at a minimum flowrate of 20gpm for the shower and 3gpm for the eye/face wash through
a specially designed redundant siphon system.
The 8720 booth includes a Haws®combination shower and eyewash that is protected with a scald valve.
Optional alarms are activated by proximity switches when the shower and/or eyewash are in use. Dry
contacts can be provided for remote alarm notification and/or both visual and audible alarms with a silencing
circuit that auto resets can be provided.
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 5 of 22
SHIPPING, HANDLING AND STORAGE
Performance
Series Model
Description
Dimensions
W x L x H
Weight
Dimensions
W x L x H (Crated)
Weight
(Crated)
8720
Tank
60”x 60” x 78 1/2”
1360 lbs.
66” x 65” x 85”
1560 lbs.
Shower Enclosure
66” x 79 ½” x 100 ½”
1240 lbs.
72” x 85” x 106”
1440 lbs.
Recommended Equipment, Materials and Supplies to be provided by Installer:
•Existing slab on grade. The installer shall verify that the following minimum requirements of the
existing slab-on-grade are satisfied.
oAllowable Soil Bearing Pressure: 1500 psf
oSlab-on-grade minimum thickness: 6 inches
oCompressive Strength of slab, f’c: 3000 psi
oAdequate footprint area (minimum 6’ x 6’ recommended)
oAdequate vertical space (minimum 20 ft. recommended, 15 ft. required)
•Recommended anchors (Not Included, customer to determine anchor suitability):
High strength adhesive anchors (ICC-ES Report ESR-3187): Hilti HIT-HY 200 Safe Set epoxy
adhesive anchorage system with Hilti hollow drill bit system with Hilti HIT-Z Rod and ASTM A563
Grade A nuts. Frame Feet mounting holes are 17/32” diameter. Each Frame Foot has four (4)
17/32” diameter clearance holes (16 total anchors).
•A forklift capable of lifting 2,000 lbs. should be utilized to transport the unit from truck to site and to
lift tank into position.
Tools and Supplies
•Impact drill/driver with 5/16” nut driver (For Optional Eye/Face Wash Option).
•Steel Strap Shears
•Torque wrench with 7/8” and 9/16” sockets.
•7/8” and 9/16” box end wrenches.
•Plumbing supply materials including potable water-safe thread sealant for PVC.
(Automatic refill water connection is 1-1/4” NPT male pipe fitting.)
•Appropriate personal protective equipment including safety glasses and work gloves.
Storage
The unit should be stored in a clean, dry place until ready for installation unless otherwise specified.
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 6 of 22
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.
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.
WARNING: Drainage means shall not create an obstruction or tripping hazard.
Figure 1. Example of Slab with Drain Trough
WARNING: Failure to allow water to drain may result in premature failure of booth and void of
product warranty.
d. Attach tank to booth using the supplied hardware. Connect the electrical connections between the
booth and the tank.
e. The connection provided for the water supply is a 1-1/2” NPT union. The system includes a 30gpm
flow control in the water supply line to prevent the unit from being filled too quickly. The water fill
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 7 of 22
line should run for a few minutes to eliminate any debris before it enters the equipment. Stop filling
system when low water indicator light turns off or water begins to drain out of tank overflow.
f. Connect electrical supply to the Power Disconnect Switch (see Figure 2).
NOTICE: All Power Connections must be made according to local codes and standards using
components which are compliant with the area the unit is being installed in.
Figure 2. 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. Applying power prematurely will damage the equipment.
g. Once all water and power connections are made, open an emergency shower or eyewash valve
(Figure 3) to eliminate any air that may be in the lines, and allow water in the system to flow.
Inspect plumbing for leaks and repair as necessary. During transit, some plumbing may have
become loose, allowing water to leak from the threads. Once the plumbing has been checked, the
shower should run for several minutes to evacuate any debris that might have entered the system.
Turn shower off once water is clear of debris.
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 8 of 22
Figure 3. Eyewash
h. Replace any water lost during the previous step and disconnect fill line.
i. At this point the power can be turned on. Heating can take up to 14 hours, depending on supply
water temperature and ambient conditions.
CAUTION: Before turning on the power, close all electrical boxes.
j. 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.
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 9 of 22
Checklist for start-up
CHECK LIST FOR START-UP
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)
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 filled with water.
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. Return the thermostat to 70ºF.
Verify that the tank heater thermostat is set to 165º F (74ºC) for US applications and
145°F (63°C) for Canada applications. Increase the thermostat set point and verify that
the heater is producing heat. Return the thermostat to original setpoint.
Verify that interior and exterior lights are illuminated (if equipped).
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 (if equipped).
Press the alarm silence button and verify that the exterior light is flashing, and the
audible alarm is silent (if equipped).
Deactivate the shower or eyewash that is active, verify that the exterior light is not
flashing, and that the audible alarm is silent (if equipped).
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 10 of 22
PROGRAMMABLE CONTROLLER
The programable controller executes the following functions:
•Deactivates the tank heater when the tank level is low.
•Deactivates the tank heater when the temperature switch setpoint is exceeded.
•Switches the alarm light from steady to flashing when eyewash/shower is in use.
•Opens dry contacts for Common alarm when tank level is low, or tank temperature is high.
•Opens dry contact for In Use alarm when eyewash/shower is in use.
•Changes interior light from green to white when doors are opened.
The following table lists the inputs and outputs available with the system. System may not contain all
components.
Input
Function
Output
Function
I-01
Horn Silence Button
Q-01
Tank Heater Contactor
I-02
Flow Switch or Proximity Switch
Q-02
Area/ Alarm Light
I-03
Proximity Switch
Q-03
Alarm Horn
I-04
Level Switch
Q-01 (Exp. Mod.)
Customer Contact (Common)
I-05
Door Proximity Switch
Q-02 (Exp. Mod.)
Customer Contact (In Use)
I-06
Tank Temperature Switch
Q-03 (Exp. Mod.)
Interior Light (Green/White)
NOTE: For model specific program, please contact Haws Services at 1-800-766-5612.
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 11 of 22
PREVENTIVE MAINTENANCE
Note: These are general instructions applicable to all Haws Model 8720 Overhead Tank Shower
Booths. Additional maintenance activities may apply to particular configurations/options
supplied.
Weekly
•Verify the tank temperature readout on the display reads. 85ºF ± 2ºF (29ºC ± 1ºC).
•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. After several minutes the space heater should begin to emit heat. Return
space heater thermostat to 70ºF (21ºC).
•Self-contained combination units shall be visually checked weekly to determine if flushing fluid
needs to be changed or supplemented. Such inspection shall be conducted in accordance with
manufacturer’s instructions.
Monthly
•Check for evidence of leakage on freeze and scald valves.
Quarterly
•Flush Y –strainers (if installed)
•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.
•Drain and refill tank with fresh potable water. Add suitable amount and anti-microbial solution to
tank.
•Take proper precautions to help prevent the growth of potentially harmful bacteria in flushing fluid
tanks. We recommend either of the following procedures:
oProcedure 1: Use suitable Sterile Antimicrobial Preservative Model 9082 to help prevent
the growth of bacteria in flushing fluid tank. The flushing fluid tank should be drained,
flushed and refilled with clean potable water and Sterile Antimicrobial Preservative Model
9082 as directed by the preservative’s manufacturer.
oProcedure 2: Use suitable immersible cleansing stick Model 9084 to help prevent the
growth of bacteria in flushing fluid tank. Model 9084 last up to 3 years and requires
inspection every 6 months.
oProcedure 3: Drain, flush and refill portable units with clean potable water at least once
every week. Thoroughly cleanse tank at least once every month.
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 12 of 22
•After activating the units for whatever reason, ensure the following steps are implemented:
oRefill tank with potable water to the full level.
oIf water is discharged for any reason –follow Procedure 1 or 3 above to ensure that water
quality is maintained.
Annually
•Check tank heater and tank for deposit buildup. Drain tank and clean/replace heater if necessary.
•All valves should be periodically tested; at least once a year, more often if water is dirty.
•Drain tank and verify level switch operation.
•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.
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 13 of 22
MAINTENANCE, TESTING, REPAIR
Booth The booth is made of aluminum skins laminated to an insulating foam core then powder coated.
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.
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 screws at the top and
bottom of the hinges.
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 is designed to open before internal water temperature exceeds 100°F (37.8°C).
Freeze is designed to open before internal water temperature drops below 35°F (1.7°C).
NOTE: If valve does not fully open/close, check valve seat for debris or scale build. If no debris or scale
present, consult Haws Corporation.
CAUTION: Extreme hot/cold temperatures in booth may cause valves to open.
For technical support, contact:
Haws Services | (800) 766-5612 | www.hawsco.com/services
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 14 of 22
TROUBLESHOOTING
TROUBLE
REPAIR CHECKLIST
Tank temperature too cold (set point 85F (29ºC)):
a) Used recently? Full recovery for each tank and
heater size below:
•530 gallon/4kW, 14 hours
b) Check thermostat setting (85ºF).
c) Check heater circuit fuses F1.
d) Check control voltage and power supply fuses
PFU & CFU.
Tank temperature too hot:
a) Check thermostat setting.
Space heater not on when temperature is below 70°F
(21°C):
a) Check thermostat setting.
b) Check heater fuses F2.
Uneven water flow to eyewash:
a) Eyewash must be level.
b) Clogged eyewash head. Clean or replace
eyewash head.
Insufficient water flow to eyewash or shower:
a) Check ball valves. Must be open and unclogged.
b) Clogged or malfunctioning siphon
Clear exterior light off:
a) Check LED.
b) Check fuses PFU & CFU
Exterior light does not flash, and alarm does not
sound when shower or eyewash is activated:
a) Check proximity switch actuation.
b) Check proximity switch wiring connections.
Exterior alarm does not flash but alarm is sounding
when shower or eyewash is activated:
a) Check LED.
b) Check wiring to light.
For technical support, contact:
Haws Services | (800) 766-5612 | www.hawsco.com/services
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 15 of 22
SPARE PARTS
Please call Haws Services to order spare parts: 1-800-766-5612
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 16 of 22
DRAWINGS
General Arrangement Drawing (0580001082.D-GA)
THE ATTACHED DESIGNS ARE CONSIDERED TRADE SECRETS AND
POTENTIALLY PATENTABLE. IN ACCORDANCE WITH CONFIDENTIALITY AND
NON-DISCLOSURE AGREEMENT, THESE DESIGNS IN ACTUAL OR
CONCEPTUAL FORMS CANNOT BE DISCLOSED, REPRODUCED OR USED
WITHOUT HAWS' EXPRESS WRITTEN CONSENT.
0"
100 3/8"
179 3/32" (OVERALL HEIGHT)
110 5/8"
DOUBLE SWING
DOORS
ALARM HORN
(OPTIONAL)
ALARM LIGHT
FLASHES WHEN
SHOWER/EYEWASH
IS IN USE
(OPTIONAL)
TANK OVERFLOW
CUSTOMER CONNECTION
TANK FILL / WATER SUPPLY
1-1/2" NPT UNION
DISCONNECT AFTER FILL
3.5KW
SPACE HEATER
(OPTIONAL)
CONTROL PANEL
SEE 0580001082.D-EL
FOR WIRING AND
ELECTRICAL SERVICE
DETAILS
DISCONNECT
SWITCH
FROSTED PRIVACY
WINDOWS
DRAIN
3" IPS SLIP FIT
68 15/32"
74 1/8"
47 7/16"
INTERIOR LIGHT
GREEN: STANDBY
WHITE: IN USE
ANSI Z358.1 COMPLIANT
SHOWER WITH PULL
HANDLE
ANSI Z358.1 COMPLIANT
EYE/FACE WASH WITH
PULL HANDLE
ALARM SILENCE
PUSH BUTTON
(OPTIONAL)
12 1/2"
33 15/16"
32 3/4"
65 1/2"
A
143 7/8"
123 25/32"
MAINTENANCE
MEZZANINE
(OPTIONAL)
1 1/2"
9 1/2"
1 1/2"
9 1/2"
4X
17/32"
THRU
4X DETAIL A
SCALE 1 : 15
LEVEL SWITCH
CIRCULATION
FAN
500 GALLON
STORAGE TANK
4kW TANK
HEATER
TEMPERATURE
SWITCH
AIR INLET
TANK
FORKLIFT
SLOTS
BOOTH FORKLIFT
SLOTS
NOTES:
DIMENSIONS IN US INCHES
1.
ALL TOLERANCES:
1/2"
2.
ESTIMATED WEIGHT:
3.
DRY: 2500 LBS
WET: 6900 LBS
AREA CLASSIFICATION: ORDINARY
4.
AVAILABLE AMBIENT TEMPERATURE RANGES:
5.
-50
F TO 104
F, -30°F TO 104°F, 32°F TO 120°F
RATINGS: CONFIGURABLE WITH TYPE 4/4X JUNCTION BOX FOR INDOOR OR
6.
OUTDOOR LOCATION
NOT ALL FEATURES ARE STANDARD
7.
NOTE: WHERE APPLICABLE, 16 EACH
HILTI CONCRETE ANCHORS
P/N HIT-HY-200 + HIT-Z 1/2
ARE RECOMMENDED (NOT SUPPLIED)
SEE INSTALLATION MANUAL FOR
INSTALLATION DETAILS
REVISIONS
REV
DESCRIPTION
ECN
DATE
BY
1
INITIAL RELEASE
5589 9/18/20220
IR
2
PER ECO
5624 11/22/2021
IR
D
C
B
A
A
B
C
D
1
2
3
4
5
6
7
8
8
7
6
5
4
3
2
1
E
F
E
F
© 2021 Haws Corporation - All Rights Reserved. HAWS® and other trademarks used in these materials are the exclusive property of Haws Corporation.
JOB NUMBER:
CUSTOMER INFO/TAG #:
APPROVAL DATE:
CHECKED DATE:
DRAWN DATE:
OUTDOOR OVERHEAD TANK
COMBINATION SHOWER
IR
2
11/30/21
11/23/21
1455 KLEPPE LANE
SPARKS, NEVADA 89431
USA
NOTICE OF PROPRIETARY INFORMATION
INFORMATION CONTAINED HEREIN IS THE SOLE
PROPERTY OF HAWS CORPORATION AND THIS
DOCUMENT AND THE DATA DISCLOSED HEREIN OR
HEREWITH IS NOT TO BE REPRODUCED, USED, OR
DISCLOSED IN WHOLE OR IN PART TO ANYONE
WITHOUT THE PERMISSION OF HAWS CORPORATION.
THIRD ANGLE PROJECTION
GA
APPROVED BY:
AM
TITLE
0580001082.D-GA
CHECKED BY:
DRAWN BY:
REV.
SH 1 OF 1
C
PART NO.
SIZE
SCALE
1:32
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 18 of 22
Electrical Schematic (0580001082.D-EL)
C
D
43
C
SCALE SIZE PART NUMBER REV
THIRD ANGLE PROJECTION
NOTICE OF PROPRIETARY INFORMATION
INFORMATION CONTAINED HEREIN IS THE SOLE PROPERTY OF
HAWS CORPORATION AND THIS DOCUMENT AND THE DATA
DISCLOSED HEREIN OR HEREWITH IS NOT TO BE REPRODUCED,
USED, OR DISCLOSED IN WHOLE OR IN PART TO ANYONE WITHOUT
THE PERMISSION OF HAWS CORPORATION.
OF
SH
CUSTOMER INFO/TAG #:
DATE
TITLE:
DRAWN
APPROVED
CHECKED
APPROVALS
A
B
21
B
A
D
C
2
3
4
1455 KLEPPE LANE
SPARKS, NEVADA 89431
USA
Haws Corporation - All Rights Reserved.
C
HAWS® and other trademarks used in these materials are the exclusive property of Haws Corporation.
THE ATTACHED DESIGNS ARE CONSIDERED TRADE SECRETS
AND POTENTIALLY PATENTABLE. IN ACCORDANCE WITH
CONFIDENTIALITY AND NON-DISCLOSURE AGREEMENT,
THESE DESIGNS IN ACTUAL OR CONCEPTUAL FORMS
CANNOT BE DISCLOSED, REPRODUCED OR USED WITHOUT
HAWS' EXPRESS WRITTEN CONSENT.
REV
REVISIONS
BYDATEDESCRIPTION ECN
JOB NUMBER
1 0580001082.D-EL 2
COMBINATION SHOWER
11/30/21IR
11/23/21AM
.
1
1
ELECTRICAL
8720 - OUTDOOR OVERHEAD TANK
09/18/20IR
2021
NOTES:
1. AREA CLASSIFICATION: ORDINARY
2. AVAILABLE AMBIENT TEMPERATURE RANGES:
-50°F - 104°F, -30°F - 104°F, 32°F - 104°F, 32°F - 120°F
3. RATINGS: CONFIGURABLE WITH TYPE 4/4X JUNCTION BOX
FOR INDOOR OR OUTDOOR LOCATION
IR12/01/205624PER ECO2
HAWS®P/N 0580001082 Rev.2 11/21 Model 8720 Page 20 of 22
Piping and Instrumentation Diagram (0580001082.D-PID)
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