Haws 7501BLH Guide

03/18 Model 7501BLH/7501BL240H Page 1 of 6
No. 0510000809(1)
1455 Kleppe Lane Sparks, NV 89431-6467 [phone] Fax [phone]
E-mail: [e-mail]  website: www.hawsco.com
Model 7501BLH/7501BL240H
Hazardous Location Heated Blanket for 7501 Portable Eyewash
INSTALLATION, OPERATION
&
MAINTENANCE INSTRUCTIONS
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.
NOTE TO INSTALLER: Please leave this information with the Maintenance Department.
SHOULD YOU EXPERIENCE DIFFICULTY WITH THE INSTALLATION OF THIS
MODEL PLEASE CALL:
TECHNICAL SUPPORT: 1-800-766-5612
FOR CUSTOMER SERVICE: 1-888-640-4297

03/18 Model 7501BLH/7501BL240H Page 2 of 6
CAUTION: A GROUND FAULT DEVICE MUST BE USED WITH THIS HEATING DEVICE.
ATTENTION: CE PRODUIT DOIT ÊTRE UTILISÉ AVEC UNE PROTECTION DE MISE À LA
TERRE.
THIS HEATING BLANKET IS ONLY FOR USE WITH HAWS MODEL 7501 PORTABLE
EYEWASH.
RECOMMENDED TOOLS: Assorted tools as needed for installing power cord.
LOCATION OF UNIT: The Model 7501BLH/7501BL240H heated blanket should be installed
over a 7501 tank in close proximity to potential accident areas. It should be clearly identified,
free from obstruction, and easily accessible. This assembly should be wall mounted in
accordance with the 7501 installation instructions. NOTE: Portable eyewash unit Models
7501BLH/7501BL240H shall not be exposed to ambient temperatures exceeding 38⁰C
(100⁰F). Models 7501BLH/7501BL240H are suitable for use in Class 1, Division 2 Group B, C,
& D, temperature rating T6 (85°C) and Class 2, Division 2 Group F, G, NEMA/TYPE 4 areas.
ELECTRICAL SUPPLY FOR MODEL 7501BLH: 120VAC, 60 Hz, 1.38A. No power cord is
supplied. The junction box is undrilled; the user must drill an appropriate hole for a suitable
hazardous-rated electrical fitting. The Model 7501BLH must use a ground fault protection
device (30mA GFCI) for Heat Trace. Electrical fault currents may be insufficient to trip a
conventional circuit breaker. Units are suitable for installation and use in Class 1, Division 2,
Group B, C, D, T6, Class 2, Division 2, Group F, G, NEMA/TYPE 4 areas and MUST BE
INSTALLED IN COMPLIANCE WITH LOCAL, STATE AND/OR FEDERAL CODES USING
FLEXIBLE CONDUIT OR CABLE RATED FOR CLASS I, II, DIVISION 2 – NO RIGID
CONNECTION PERMITTED. DURING POTENTIAL FREEZING PERIODS INSURE THAT
UNIT IS CONNECTED TO A CONTINUOUS POWER SUPPLY.
ELECTRICAL SUPPLY FOR MODEL 7501BL240H: 240VAC, 50/60 Hz, 0.64A. No power
cord is supplied. The junction box is undrilled; the user must drill an appropriate hole for a
suitable hazardous-rated electrical fitting. The Model 7501BL240H must use a ground fault
protection device (30mA GFCI) for Heat Trace. Electrical fault currents may be insufficient to
trip a conventional circuit breaker. Units are suitable for installation and use in Class 1, Division
2, Group B, C, D, T6, Class 2, Division 2, Group F, G, NEMA/TYPE 4 areas and MUST BE
INSTALLED IN COMPLIANCE WITH LOCAL, STATE AND/OR FEDERAL CODES USING
FLEXIBLE CONDUIT OR CABLE RATED FOR CLASS I, II, DIVISION 2 – NO RIGID
CONNECTION PERMITTED. DURING POTENTIAL FREEZING PERIODS INSURE THAT
UNIT IS CONNECTED TO A CONTINUOUS POWER SUPPLY.
AMBIENT TEMPERATURE RATING:
-30°F (-35°C) TO 100°F (38°C)

03/18 Model 7501BLH/7501BL240H Page 3 of 6
INSTALLATION PROCEDURE
NOTE: Instructions apply to all models unless otherwise specified.
STEP 1: Unpack the blanket. Lay flat with inner surface (silver) up.
STEP 2: Install the power cord in the junction box using a suitable hazardous-rated electrical
fitting and flexible conduit or cable rated for Class I, II, Division 2. RIGID
CONNECTIONS ARE NOT PERMITTED. The junction box is undrilled; the user
must drill the appropriate size hole for the electrical fitting used. Wire the power cord
to terminal block referencing the supplied electrical drawing. The cord and fittings
selected must have the appropriate hazardous rating required for the installation
location. The Model 7501BL240H/7501BL240H must use a ground fault protection
device (30mA GFCI) for Heat Trace.
NOTICE: MODEL 7501BLH/ 7501BL240H REQUIRES MINIMUM NEMA/TYPE 4
COMPLIANT EQUIPMENT. ALL POWER CONNECTIONS MUST BE MADE
ACCORDING TO NEC/ CEC CODE USING FLEXIBLE CONDUIT OR CABLE
RATED FOR CLASS I, II, DIVISION 2 – NO RIGID CONNECTION PERMITTED.
THE CORD AND FITTINGS SELECTED MUST HAVE THE APPROPRIATE
HAZARDOUS LOCATION RATING REQUIRED FOR THE INSTALLATION
LOCATION.
STEP 3:Set 7501 tank bottom down on the blanket in the orientation shown.

03/18 Model 7501BLH/7501BL240H Page 4 of 6
STEP 4:Wrap the blanket up and over the 7501 tank and attach bottom Velcro closures.
STEP 5:Fold side flaps to over sides of tank using the Velcro to attach the edges together.
STEP 6: Pull open/down eyewash flap and yellow eyewash arm. Attach webbing loop around
eyewash arm below eyewash heads.
STEP 7: Mount assembled eyewash and blanket in accordance with 7501TH/7501T240H
installation instructions.
IMPORTANT SAFETY NOTICE
THE NATIONAL ELECTRICAL CODE REQUIRES GROUND-FAULT EQUIPMENT PROTECTION ON EACH
HEATING CABLE BRANCH CIRCUIT. TO REDUCE THE RISK OF FIRE CAUSED BY DAMAGE OR IMPROPER
INSTALLATION, CIRCUIT BREAKERS SUCH AS SQUARE D QO-EPD AND QOB-EPD OR EQUIVALENT, WITH
A 30mA TRIP LEVEL, SHOULD BE USED. PLEASE SUBSTITUTE THESE BREAKERS WHEREVER
REFERENCE IS MADE TO CONVENTIONAL BREAKERS IN THIS DOCUMENT. ALTERNATIVE DESIGNS
PROVIDING COMPARABLE LEVELS OF GROUND-FAULT PROTECTION MAY ALSO BE ACCEPTABLE.

03/18 Model 7501BLH/7501BL240H Page 5 of 6
OPERATING INSTRUCTIONS
The 7501BLH/7501BL240H can be connected to power year-round. The non-adjustable
thermostat will shut off heat cable when air temperature rises to 82°-72°F (28°-22°C). Heat
cycle will repeat when air temperature drops to between 62°-72°F (16°-22°C). Periodic check
of water temperature of eyewash will confirm normal operating temperatures between 62°-95°F
(16°-35°C).
Heat trace cable used on this blanket heats slowly and may take several hours to warm cold
water into ANSI recommend temperature range of 60°F (15°C) to 100°F (38°C).
TROUBLESHOOTING
PROBLEM
REPAIR CHECKLIST
1. Heat trace does not turn on. 1. a. No power to unit. Check GFCI and circuit
breaker.
b. If ambient temperature is high and
doesn’t allow the blanket temperature to
drop below 67°F (19°C) the heater may
not switch on. Heater settings are: Non-
adjustable thermostat preset to switch on
at 67°± 5°F (17°± 3°C) and switch off
77°± 5°F (25°± 3°C). Test the thermostat
and heater function by applying ice
thermostat for approximately 3-5
minutes. The heat trace cable should
become warm to the touch when
operating properly. Thermostat is located
on junction box.
2. Eyewash water is above 100°F
(38°C). 1. a. Ambient air temperature is above 100°F (38°C). Relocate eyewash out of direct
sunlight or excess ambient temperature.
b. Shut off electric power. All electric
connections are made inside the junction
box. Thermostat is mounted on the side
of junction box. Disconnect thermostat
leads from terminal block and wire nut in
junction box. Check thermostat
continuity: open circuit above 82°F
(28°C), closed below 62°F (16°C).
Thermostat is not adjustable and should
be replaced if either of the continuity
checks are incorrect. If unit is subject to
freezing temperatures, temporarily
disconnect thermostat and reconnect
wiring to bypass thermostat and protect
eye wash from freezing until replacement
thermostat can be installed.
For more information on Haws products, see our website: www.hawsco.com
© 2018 Haws®Corporation – All Rights Reserved
HAWS® and other trademarks usedin these materials are the exclusive property of Haws Corporation.

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CHK'D.:
Haws Corporation - All Rights Reserved. HAWS and other trademarks used in these materials are the exclusive property of Haws Corporation.
CR
MODEL(S)
1455 KLEPPE LANE
SPARKS, NEVADA 89431
[phone] FAX [phone]
E-MAIL: [email protected]
WEBSITE: WWW.HAWSCO.COM
THIS DOCUMENT IS TRUE AND CORRECT AT TIME OF PUBLICATION. CONTINUED PRODUCT IMPROVEMENTS
MAKE SPECIFICATIONS AND MEASUREMENTS SUBJECT TO CHANGE WITHOUT NOTICE.
CC
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INSTALLATION
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2018
CC
FOR MODELS 7501BLH & 7501BL240H:
1. ALL MODELS MUST HAVE A GROUND FAULT PROTECTION DEVICE (30mA GFCI) FOR HEAT TRACE. ELECTRICAL
CURRENTS MAY BE INSUFFICIENT TO TRIP A CONVENTIONAL CIRCUIT BREAKER. ALL INSTALLATIONS MUST BE
INSTALLED IN COMPLIANCE WITH LOCAL, STATE, AND/OR FEDERAL CODES.
2. ALL POWER CONNECTIONS MUST BE MADE ACCORDING TO NEC/CEC CODE USING FLEXIBLE CONDUIT OR CABLE
RATED FOR NEMA/TYPE 4 – NO RIGID CONNECTION PERMITTED. MODEL 7501BLH/ 7501BL240H REQUIRES MINIMUM
NEMA/TYPE 4 COMPLIANT EQUIPMENT. THE CORD AND FITTINGS SELECTED MUST HAVE THE APPROPRIATE
HAZARDOUS LOCATION RATING REQUIRED FOR THE INSTALLATION LOCATION.
MODEL 7501BLH / 7501BL240H
ELECTRICAL DETAIL
120 VAC MODEL 7501BLH
POWER IN
GROUND
WHITE (120V) / RED (240V)
BLACK
GREEN
TERMINAL
THERMOSTAT
BLOCK
TRACE
HEAT
SHIELD
CABLE
240 VAC MODEL 7501BL240H