Haws 8740, 874301S Installation, Operation & Maintenance Instructions Manual

Overhead Tank Shower and Optional Eye/Face Wash

Non-Electric, Self-Contained, Indoor, Gravity Fed

INSTALLATION, OPERATION

&

MAINTENANCE INSTRUCTIONS

1455 Kleppe Lane Sparks, NV 89431-6467 [phone] Fax [phone]

E-mail: [e-mail]  Website: www.hawsco.com

No. 0510000842(1)

Model 8740 / 874301S

HAWS® P/N 0510000842 Rev.1 06/18 Model 8740 / 874301S Page 1 of 33

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

supply to the

and a minimum fill flow rate of 15 GPM for the

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 missing parts are obtained.

Flush the water supply lines before beginning installation and after installation is complete. Test the unit
for leaks and adequate water flow. For ANSI Z358.1 compliance, the main water
emergency fixture s hould be “ON” at all times. Prov isions should be made to prevent u nauthorized
shutoff.

The ANSI Z358.1 stand ard requires a 20 GPM flow rate for the shower and a 3 GPM flow rat e for the
optional Eye/Face Wash of flushing fluid f or 15 continuous minutes. Ha ws Model 8740 self-contained
shower requires a minimum fill pressure of 20 PSI
shower only or 20 GPM for shower and optional Eye/Face Wash combination at the automatic refill
connection to meet this requirement. Flushing fluid should be tepid per ANSI Z358.1. Haws Model 8740
should be installed in an indoor area that has an ambient temperature between 60°F and 100°F to meet
this tepid water requirement.

The tank water level should be checked weekly to ensure that the tank is full. For ANSI Z358.1
compliance, the automatic refill connection must be connected to an adequate potable water source.

This unit discharges water to the floor. It is recommended that this unit be installed in an area that
has adequate floor drainage. Failure to do so may result in major property damage.

HAWS® P/N 0510000842 Rev.1 06/18 Model 8740 / 874301S Page 2 of 33

DESCRIPTION OF PRODUCT

Haws Corporation Model 8740 non-electric, self-contained overhead tank shower and optional Model
874301S Eye/Face Wash is des igne d for us e in in door ar eas where the temper ature is norm ally between
60°F and 100°F. The 330-gallon high density polyethylene (HDPE) overhead tank is discharged by gravity
upon shower or optional Eye/Fac e Wash activation. The unit is equipped with a 1-1/4” NPT inlet water
connection and float valve for automatic refill.

The unit is designed to m eet ANSI Z358.1 s tandards for flow and duration if it is connected to a suit able
permanent potable water source. Haws Model 8740 self-contained shower requires a minimum fill pressure
of 20 PSI and a minimum fill flow rat e of 15 GPM for the sho wer only or 2 0 GPM for shower and optional
Eye/Face Wash combination at the autom atic r efill con nection to m eet this require m ent. Water should be
tepid per ANSI Z358.1. Haws Model 8740 should be installed in an indoor area that has an ambient
temperature between 60°F and 100°F to meet this tepid water requirement.

The optional Model 874301S Eye/Face W ash available for this unit uti lizes Haws Axion MSR (Medically
Superior Response®) eyewash design. The AXION MSR Eye/Face Wash uses an inverted stream design
which sweeps chem ical and particulate contaminants away from the vulnerable nasal ca vity, consistent
with medical irrigation protocols.

Although optional, the Model 9084 is recommended for use with the Mod el 8740. T he Model 9084 is an
immersible Cleansin g Stick that gives continual protection against path ogenic bacteria for water storage
systems. It balances the PH of the water preventing the build-up of bio-film, scale, and corrosion for up to
3 years with proper usage.

HAWS® P/N 0510000842 Rev.1 06/18 Model 8740 / 874301S Page 3 of 33

Model Description

Haws Overhead

Tank Shower

SHIPPING, HANDLING AND STORAGE

Dimensions

W x L x H

(Assembled)

Dry Weight

Filled (Wet)

Weight

Dimensions

W x L x H

(Shipping)

Weight

(Crated)

8740

55” x 59” x 150” 975 lbs. 3750 lbs. 60” x 49” x 79” 1025 lbs.

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

• Existing slab on grade. T he installer shall verif y that the following minimum requirements of the
existing slab-on-grade are satisfied.

o Allowable Soil Bearing Pressure: 1500 psf
o Slab-on-grade minimum thickness: 6 inches
o Compressive Strength of slab, f’c: 3000 psi
o Adequate footprint area (minimum 6’ x 6’ recommended)
o Adequate vertical space (minimum 14.5 ft. recommended, 13 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 s ystem and Hilti h ollow drill bit system with 5/8” d iameter Hilti HIT-Z Rod, 2
ASTM F844 flat washers , and AST M A563 Grade A nuts. Frame Feet mounting holes are 13/16”
diameter. Hilti specifies 3-3/4” m inim um embedment depth per HIT-Z specif ications. F rame F eet
have four (4) 13/16” 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.

HAWS® P/N 0510000842 Rev.1 06/18 Model 8740 / 874301S Page 4 of 33

PALLET CONTENTS

ITEM #

DESCRIPTION

QUANTITY

1

Tank Assembly

1

2

Frame Back Panel

2

6

½-13 X 3” Bolt

16

7

½-13 X 5” Bolt

16

8

½” Flat Washer

64

9

½” Lock Washer

32

10

½-13 Nut

32

11

Shower Piping Assembly

1

12

Shower Head

1

17

3/8-16 Nut

2

18

1-1/2” Strut Pipe Clamp Assembly (2 straps, 1 bolt, 1 nut)

1

19

Tank Breather Vent, 2” NPT

1

NOTE: Confirm all components listed for the Model 8740 are present before assembly. See Figure 1.
(For optional Model 874301S Eye/Face Wash Assembly components see page 21.)

3 Frame Side Panel 4
4 Frame Feet 4
5 Frame Connection Bars 4

13 Shower Pull Rod 1
14 1-5/8” x 38” Steel Strut 1
15 3/8-16 X 1-1/4” Bolt 2
16 3/8” Flat Washer 4

Figure 1. Pallet Contents Model 8740; Item #1 Tank Assembly Removed

HAWS® P/N 0510000842 Rev.1 06/18 Model 8740 / 874301S Page 5 of 33

MODEL 8740 ASSEMBLY & INSTALLATION PROCEDURE

1. Transport the p allet ized uni t to the install ation po int via f o rk lift, ensuring the forks are ins er ted through
the shipping pallet.

2. The installation area should be located indoors on a level floor capable supporting up to 4,000lbs spread
across the four Frame Feet. Suitable concrete flooring is preferred. If unit is to be placed over a drain,
the drain should be able to handle a flow of 35 GPM; otherwise, the slab should allow the water to drain
away from the unit.

3. Confirm there is suitable available vertical space where the unit is to be installed . T he unit r equ ires a
minimum of 13ft vertical space for installation, 13.5ft of vertical space for assembly, and 14.5ft of vertical
space to insert or remove the optional Model 9084 Cleansing Stick if utilized.

4. Remove the plastic wrap packaging around the palletized unit.

5. Cut the three (3) steel bands that st rap the unit to the wooden pal let as shown in Figure 2. DO NOT
cut the steel bands on top of the tank ass em bly (th ese 4 bands retain the tank on the tank fram e and
will not be removed).

Cut and remove
three steel bands
that strap the unit

to the wooden

pallet ONLY.

Figure 2. Removing 3 Steel Bands

6. Use a forklift to lift the Tank Assembly (Item #1) from the palletized unit, using the fork slots on the Tank
Assembly, and set the Tank Assembly aside.

7. Remove box of com ponents from the pallet and rem ove components from the box. Next, remove
shipping screws/washers holding frame components to pallet. Discard shipping/screws. Place all
components in a secure area until needed.

HAWS® P/N 0510000842 Rev.1 06/18 Model 8740 / 874301S Page 6 of 33

8. At the top of the tank, remove t he shipping plug from top cap and c ut cable tie holding the float f or

Remove shipping

plug & cut cable tie

Float

shipping protection. Ensure the cable tie does not drop into the tank. See Figure 3.

Figure 3. Remove Shipping Plug and Detach Shipping Protection for Float

HAWS® P/N 0510000842 Rev.1 06/18 Model 8740 / 874301S Page 7 of 33

9. Figure 4 shows an exploded view of the assembly.

IN FRONT

5-INCH BOLTS

BACK PANEL

3-INCH BOLTS

UPPER FRAME

LOWER FRAME

USED FOR

HAWS® P/N 0510000842 Rev.1 06/18 Model 8740 / 874301S Page 8 of 33

Figure 4. Exploded View of Model 8740

10. Begin by assembling the lower f rame shown in Figure 5. With all four (4) Fram e Feet present, place

Frame Back Panel

Frame Foot Plate

Frame Side Panel

one Frame Back Panel over two back Frame Feet posts. Holes must be aligned front to back and panel
cross-bracing strips must be on the outs i de (toward the back) as shown in Figure 5.

IMPORTANT!! The two (2) mounting ho les must be oriented as shown in Figure 5 to ensur e unit can
accept optional Model 874301S Eye/Face Wash in the future.

IMPORTANT!!

Two Eye/Face

Wash mounting

holes must be
located here on
the lower frame

assembly!

Figure 5. Lower Frame

11. Place one (1) Frame Side Panel over each of the t wo (2) front Frame Feet posts with the panel cross­bracing strips to the outside as shown in Figure 5.

12. Set the back of each of the two (2) Side Frame Panels on the Frame Feet plates of the Back Panel with
the mounting holes aligned as sho wn in Figure 6. Confirm the pane l cross-bracing strips are on the
outside.

Cross-Bracing

Strips

Figure 6. Frame Side Panel on Back Frame Foot

13. Typical bolting arrangement is shown in Figure 7 for reference in the next steps.

HAWS® P/N 0510000842 Rev.1 06/18 Model 8740 / 874301S Page 9 of 33

• 5” bolting is for attachment of back panels through feet or connectors to side panels and 3” bolting

Frame Back

Panel

Frame Foot

Frame Side

Panel

5-INCH

is for side panels through connectors or feet only.

• Bolting should consist of one 1/2-13 x 5” bolt (Item #7) or 1/2-13 x 3” bolt (Item #6), two 1/2” flat

washers (Item #8), one 1/2” lock washer (Item #9), and one 1/2-13 nut (Item #10).

Figure 7. Typical Bolting Ar rangement (3” Bolt Shown)

14. With mounting holes aligned as shown in Figure 8, place four (4) each 5” bolts from back to front in the
lower frame holes only to secure Frame Side Pa nels to Fr am e Back Panel and Frame Feet. Refer to
Figure 7 for bolting arrangement.

Figure 8. Connecting Frame Side Panels to Frame Back Panel

HAWS® P/N 0510000842 Rev.1 06/18 Model 8740 / 874301S Page 10 of 33