Hatco GLO-RAY GR-18 User manual

© 2008 atco Corporation
I&W #07.05.183.00
GLO-RAY®
Infrared Strip Heaters
GR, GRH, GRA, GRAH, GRAL,
GRAHL, GRN, and GRNH Series
Installation and Operating Manual
Do not operate this equipment unless
you have read and understood the
contents of this manual! Failure to follow
the instructions contained in this manual
may result in serious injury or death.
This manual contains important safety
information concerning the
maintenance, use, and operation of this
product. If you’re unable to understand
the contents of this manual, please bring
it to the attention of your supervisor.
eep this manual in a safe location for
future reference.
No opere este equipo al menos que haya
leído y comprendido el contenido de este
manual! Cualquier falla en el
seguimiento de las instrucciones
contenidas en este manual puede
resultar en un serio lesión o muerte. Este
manual contiene importante información
sobre seguridad concerniente al
mantenimiento, uso y operación de este
producto. Si usted no puede entender el
contenido de este manual por favor
pregunte a su supervisor. Almacenar
este manual en una localización segura
para la referencia futura.
CAUTION - HOT
GLO-RAY
Foodwarmer
HATCOCORP. MILWAUKEE,WI U.S.A.
ON
OFF
O
PARTS& SERVICE
ASSISTANCE
WWWHATCOCORPCOM
800-558-0607
CAUTION - HOT
GLO-RAY
Foodwarmer
HATCOCORP MILWAUKEE WI U S A
ON
OFF
O
PARTS&SERVICE
ASSISTANCE
WWWHATCOCORPCOM
800-558-0607
CAUTION - HOT
GLO-RAY
Foodwarmer
HATCOCORP. MILWAUKEE,WI U.S.A.
ON
OFF
O
PARTS& SERVICE
ASSISTANCE
WWWHATCOCORPCOM
800-558-0607

i
CONTENTS
Form No. GRM-0508
INTRODUCTION
atco Glo-Ray®Strip eaters ensure maximum food
holding and minimize the risk of food-borne illness.
Optimum safety and quality is the result of food held
at the proper serving temperatures, using Glo-Ray’s
pre-focused heat patterns. The pre-focused heat
pattern prevents foods from being over-cooked in the
middle and cooling off around the edges by
concentrating higher temperatures to the outer edges
of holding surfaces where heat loss is the greatest.
Utilizing specially designed reflectors to direct the
heat from the element, Glo-Ray Strip eaters safely
maintain peak serving temperatures longer without
cooking the food beyond the point of excellence.
Glo-Ray Strip eaters are available from the factory
with or without shatter-resistant incandescent lights to
illuminate the warming area. These bulbs have a
special coating that guards against injury and food
contamination in the event of breakage.
Glo-Ray Strip eaters are a product of extensive
research and field testing. The materials used were
selected for maximum durability, attractive
appearance, and optimum performance. Every unit is
inspected and tested thoroughly prior to shipment.
This manual provides the installation, safety, and
operating instructions for Glo-Ray Strip eaters.
atco recommends all installation, operating, and
safety instructions appearing in this manual be read
prior to installation or operation of the Strip eaters.
Safety information that appears in this manual is
identified by the following signal word panels:
WARNING indicates a hazardous situation
which, if not avoided, could result in death or
serious injury.
CAUTION indicates a hazardous situation which,
if not avoided, could result in minor or moderate
injury.
NOTICE is used to address practices not related
to personal injury.
NOTICE
CAUTION
WARNING
Important Owner Information...............................i
Introduction...........................................................i
Important Safety Information..............................1
Model Designations.............................................2
Model Descriptions..............................................3
Specifications.......................................................4
Electrical Rating Charts...................................4
Dimensions....................................................10
Installation...........................................................11
General..........................................................11
Mounting eight Requirements.....................12
Assembly.......................................................12
Portable Surface Mount ................................12
Minimum Clearance Requirements...............14
Permanent Surface Mount............................15
Undershelf Mounting.....................................16
Ceiling Mounting ...........................................17
Electrical Wiring ook-Up.............................18
Operation............................................................19
Maintenance .......................................................20
Cleaning........................................................20
Display Light Bulb Replacement...................20
Accessories........................................................21
Troubleshooting Guide......................................22
Hatco Limited Warranty.....................................24
Authorized Parts Distributors...........Back Cover
IMPORTANT OWNER INFORMATION
Record the model number, serial number
(identification decal located on the underside of the
unit), voltage, and purchase date of your strip heater
in the spaces below. Please have this information
available when calling atco for service assistance.
Model No. ________________________________
Serial No. ________________________________
Voltage __________________________________
Date of Purchase __________________________
Business 8:00 a.m. to 5:00 p.m.
ours: Central Standard Time
(Summer ours: June to September –
8:00 a.m. to 5:00 p.m. C.S.T.
Monday through Thursday
8:00 a.m. to 2:30 p.m. C.S.T. Friday)
Telephone: [phone]
Fax: [phone] (Parts and Service)
[phone] (International)
24 our 7 Day Parts and Service
Assistance available in the
United States and Canada
by calling [phone].
Additional information can be found by visiting our
web site at www.hatcocorp.com.

IMPORTANT SAFETY INFORMATION
Form No. GRM-0508 1
ELECTRIC SHOC HAZARD:
• For hard-wired units, all electrical
connections must be in accordance with
local electrical codes and any other
applicable codes. Connections should be
made by a qualified, licensed electrician.
• Units equipped with a cord and plug supplied
by Hatco must be plugged into a properly
grounded electrical outlet of the correct
voltage, size, and plug configuration. If the
plug and receptacle do not match, contact a
qualified electrician to determine and install
the proper voltage and size electrical outlet.
• Unplug the power cord or turn the power OFF
at the fused disconnect switch/circuit
breaker and allow the unit to cool before
performing any maintenance or cleaning.
• Discontinue use if power cord is frayed or
worn.
• Do not attempt to repair or replace a
damaged power cord. The cord must be
replaced by Hatco, an Authorized Hatco
Service Agent, or a person with similar
qualifications.
• DO NOT submerge or saturate with water.
Unit is not waterproof. Do not operate if unit
has been submerged or saturated with water.
• This unit is not “jet-proof” construction. Do
not use jet-clean spray to clean this unit.
• Use only Genuine Hatco Replacement Parts
when service is required. Failure to use
Genuine Hatco Replacement Parts will void
all warranties and may subject operators of
the equipment to hazardous electrical
voltage, resulting in electrical shock or burn.
Genuine Hatco Replacement Parts are
specified to operate safely in the
environments in which they are used. Some
aftermarket or generic replacement parts do
not have the characteristics that will allow
them to operate safely in Hatco equipment.
WARNING
FIRE HAZARD:
• Locate the unit the correct distance from
combustible walls and materials. If safe
distances are not maintained, discoloration
or combustion could occur. Refer to specific
installation and mounting information in this
manual for proper clearances.
• Make sure to follow the installation
information listed below for specific strip
heaters. If safe distances are not maintained,
discoloration or combustion could occur.
a. Do not install standard wattage strip
heaters (GR, GRA, GRN, GRAL Series)
less than 10″ (254 mm) above combustible
surfaces.
b. Do not install high wattage strip heaters
(GRH, GRAH, GRNH, GRAHL Series) less
than 13-1/2″ (343 mm) above combustible
surfaces.
c. Do not install dual strip heaters (GRA-
XXD, GRAH-XXD, GRAL-XXD, and GRAHL-
XXD Series) above combustible surfaces.
e. Install all single strip heaters with a
minimum distance of 3″ (76 mm) from a
combustible wall or adjacent surface.
• Do not store or use gasoline or other
flammable vapors or liquids in the vicinity of
this or any other appliance.
Use only light bulbs that meet or exceed
(National Sanitation Foundation (NSF)
standards and are specifically designed for food
holding areas. Breakage of light bulbs not
specially coated could result in personal injury
and/or food contamination.
For installation with chains, make sure the
chains have sufficient strength and are securely
fastened to both the unit and the mounting
location. Poorly installed chains may cause the
unit to loosen and fall. Do not place anything on
top of units installed with chains.
This unit has no “user-serviceable” parts. If
service is required on this unit, contact an
Authorized Hatco Service Agent or contact the
Hatco Service Department at 800-558-0607 or
414-671-6350; fax [phone]; or International
fax [phone].
WARNING
Read the following important safety information before using this equipment to avoid
serious injury or death and to avoid damage to equipment or property.

IMPORTANT SAFETY INFORMATION
2Form No. GRM-0508
MODEL DESIGNATION
BURN HAZARD: Some exterior surfaces on the
unit will get hot. Use caution when touching
these areas.
Standard and approved manufacturing oils may
smoke up to 30 minutes during initial startup.
This is a temporary condition. Operate unit
without food product until smoke dissipates.
Strip heaters equipped with incandescent lights
that require a circuit breaker larger than 20 amps
for the heat element must have a separate circuit
breaker for the incandescent lights that is 20
amps or less.
To ensure safe and proper operation, refer to the
Clearance Requirements listed in the Installation
section of this manual.
CAUTION
Installation of two or more separate units with
less than 3″ (76 mm) between housings may
result in premature failure of component parts.
Failure to provide proper spacing may result in
heat damage to electrical components.
To prevent unit failure, do not add a decorative
soffit to hide a pass-through mounted strip
heater.
To prevent premature failure of components due
to excessive heat, remote mounted control
boxes must be installed outside the strip heater
heat zone.
Heat damage to countertop material such as
Corian®and similar products (other than
stainless steel) is not covered under the Hatco
warranty. Contact the manufacturer of the base
material for temperature limits and application
information before installing the unit.
Use non-abrasive cleaners only. Abrasive
cleaners could scratch the finish of the unit,
marring its appearance and making it
susceptible to dirt accumulation.
NOTICE
G R A H L - 24 D
Glo-Ray
Housing Type
A = Aluminum
N = Narrow Powder-Coated Steel
No Character = Stainless Steel Housing
Incandescent Light
Dual Elements
Width (in inches)
High Wattage
Figure 1. Model Designation

atco Glo-Ray®Infrared Strip eaters keep hot
foods at optimum serving temperatures longer.
Foods do not dry out or become discolored; even
the most delicate dishes hold that “just-prepared”
look. The Glo-Ray pre-focused heat pattern directs
heat from a tubular element to bathe the entire
holding surface.
Glo-Ray strip heaters can be ordered in standard or
high wattage configurations, aluminum housings in
lengths of 18″ (457 mm) to 144″ (3658 mm),
stainless steel housings in lengths of 24″ (610 mm)
to 96″ (2438 mm), or narrow design housings in
lengths of 18″ (457 mm) to 72″ (1829 mm).
Glo-Ray dual models allow for side-by-side
mounting of two or more strip heaters to provide a
wider holding area (dual models are constructed
with a required 3″ [76 mm] or 6″ [152 mm] spacer
between heating elements).
All strip heaters have several mounting options and
switch locations. Optional infinite control switches,
remote control enclosures, incandescent lighting,
and sneeze guards are available.
GR-XX: Stainless steel housing,
standard wattage
GRH-XX: Stainless steel housing, high wattage
GRN-XX: Narrow design, powder-coated
steel housing, standard wattage
GRNH-XX: Narrow design, powder-coated
steel housing, high wattage
N TE: Stainless steel and narrow design strip
heaters are not available with lights, sneeze
guards, or as dual units.
GRA-XX: Aluminum housing, standard wattage
GRAH-XX: Aluminum housing, high wattage
GRAL-XX: Aluminum housing, standard wattage,
incandescent light
GRAHL-XX: Aluminum housing, high wattage,
incandescent light
GRA-XXD: Aluminum housing, standard wattage,
dual
GRAH-XXD: Aluminum housing, high wattage,
dual
GRAL-XXD: Aluminum housing, standard wattage,
incandescent light, dual
GRAHL-XXD: Aluminum housing, high wattage,
incandescent light, dual
N TE: Incandescent lights and sneeze guards are
not available for retrofit.
MODEL DESCRIPTIONS
Form No. GRM-0508 3
Figure 2. GRA-24 Model
CAUTION - HOT
GLO-RAY
Foodwarmer
HATCOCORP. MILWAUKEE,WI U.S.A.
ON
OFF
O
PARTS& SERVICE
ASSISTANCE
WWWHATCOCORPCOM
800-558-0607
Figure 3. GRA L-24 Model
CAUTION - HOT
GLO-RAY
Foodwarmer
HATCOCORP. MILWAUKEE,WI U.S.A.
ON
OFF
O
PARTS& SERVICE
ASSISTANCE
WWWHATCOCORPCOM
800-558-0607
Figure 4. GRA-24D Model
CAUTION - HOT
GLO-RAY
Foodwarmer
HATCOCORP. MILWAUKEE,WI U.S.A.
ON
OFF O
PARTS& SERVICE
ASSISTANCE
WWWHATCOCORPCOM
800-558-0607
Figure 5. GRN-24 Model

Model GRH-18 Watts: 350 Shipping Weight: 7 lbs. (3 kg)
Voltage 120 208 240 100 200 220 240
Amps 2.9 1.7 1.5 3.5 1.8 1.6 1.5
Model GRH-24 Watts: 500 Shipping Weight: 7 lbs. (3 kg)
Voltage 120 208 240 100 200 220 240
Amps 4.2 2.4 2.1 5.0 2.5 2.3 2.1
Model GRH-36 Watts: 800 Shipping Weight: 10 lbs. (4.5 kg)
Voltage 120 208 240 100 200 220 240
Amps 6.7 3.8 3.3 8.0 4.0 3.6 3.3
Model GRH-48 Watts: 1100 Shipping Weight: 12 lbs. (5 kg)
Voltage 120 208 240 100 200 220 240
Amps 9.2 5.3 4.6 11.0 5.5 5.0 4.6
Model GRH-60 Watts: 1400 Shipping Weight: 15 lbs. (7 kg)
Voltage 120 208 240 100 200 220 240
Amps 11.7 6.7 5.8 14.0 7.0 6.4 5.8
Model GRH-72 Watts: 1725 Shipping Weight: 19 lbs. (9 kg)
Voltage 120 208 240 100 200 220 240
Amps 14.4 8.3 7.2 17.3 8.6 7.8 7.2
Model GRH-96*Watts: 2400 Shipping Weight: 24 lbs. (11 kg)
Voltage 120 208 240 100 200 220 240
Amps --- 11.5 10.0 --- 12.0 10.9 10.0
Model GR-18 Watts: 250 Shipping Weight: 7 lbs. (3 kg)
Voltage 120 208 240 100 200 220 240
Amps 2.1 1.2 1.0 2.5 1.3 1.1 1.0
Model GR-24 Watts: 350 Shipping Weight: 7 lbs. (3 kg)
Voltage 120 208 240 100 200 220 240
Amps 2.9 1.7 1.5 3.5 1.8 1.6 1.5
Model GR-36 Watts: 575 Shipping Weight: 10 lbs. (4.5 kg)
Voltage 120 208 240 100 200 220 240
Amps 4.8 2.8 2.4 5.8 2.9 2.6 2.4
Model GR-48 Watts: 800 Shipping Weight: 12 lbs. (5 kg)
Voltage 120 208 240 100 200 220 240
Amps 6.7 3.8 3.3 8.0 4.0 3.6 3.3
Model GR-60 Watts: 1050 Shipping Weight: 15 lbs. (7 kg)
Voltage 120 208 240 100 200 220 240
Amps 8.8 5.0 4.4 10.5 5.3 4.8 4.4
Model GR-72 Watts: 1275 Shipping Weight: 19 lbs. (9 kg)
Voltage 120 208 240 100 200 220 240
Amps 10.6 6.1 5.3 12.8 6.4 5.8 5.3
Model GR-96 Watts: 1725 Shipping Weight: 24 lbs. (11 kg)
Voltage 120 208 240 100 200 220 240
Amps 14.4 8.3 7.2 17.3 8.6 7.8 7.2
SPECIFICATIONS
4Form No. GRM-0508
Electrical Rating Chart — GR Models Electrical Rating Chart — GRH Models
The shaded areas contain electrical information for Export models only.
*Not available in 100 or 120 volts.
CE approved units for 220-230 volt utilize a 220 volt heating system; 230-240 CE units utilize a 240 volt heating system.
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Model GRAH-18 Watts: 350 Shipping Weight: 6 lbs. (3 kg)
Voltage 120 208 240 100 200 220 240
Amps 2.9 1.7 1.5 3.5 1.8 1.6 1.5
Model GRAH-24 Watts: 500 Shipping Weight: 7 lbs. (3 kg)
Voltage 120 208 240 100 200 220 240
Amps 4.2 2.4 2.1 5.0 2.5 2.3 2.1
Model GRAH-30 Watts: 660 Shipping Weight: 8 lbs. (4 kg)
Voltage 120 208 240 100 200 220 240
Amps 5.5 3.2 2.8 6.6 3.3 3.0 2.8
Model GRAH-36 Watts: 800 Shipping Weight: 9 lbs. (4 kg)
Voltage 120 208 240 100 200 220 240
Amps 6.7 3.8 3.3 8.0 4.0 3.6 3.3
Model GRAH-42 Watts: 950 Shipping Weight: 10 lbs. (5 kg)
Voltage 120 208 240 100 200 220 240
Amps 7.9 4.6 4.0 9.5 4.8 4.3 4.0
Model GRAH-48 Watts: 1100 Shipping Weight: 11 lbs. (5 kg)
Voltage 120 208 240 100 200 220 240
Amps 9.2 5.3 4.6 11.0 5.5 5.0 4.6
Model GRAH-54 Watts: 1250 Shipping Weight: 13 lbs. (6 kg)
Voltage 120 208 240 100 200 220 240
Amps 10.4 6.0 5.2 12.5 6.3 5.7 5.2
Model GRAH-60 Watts: 1400 Shipping Weight: 14 lbs. (6 kg)
Voltage 120 208 240 100 200 220 240
Amps 11.7 6.7 5.8 14.0 7.0 6.4 5.8
Model GRAH-66 Watts: 1560 Shipping Weight: 16 lbs. (7 kg)
Voltage 120 208 240 100 200 220 240
Amps 13.0 7.5 6.5 15.6 7.8 7.1 6.5
Model GRAH-72 Watts: 1725 Shipping Weight: 17 lbs. (8 kg)
Voltage 120 208 240 100 200 220 240
Amps 14.4 8.3 7.2 17.3 8.6 7.8 7.2
Model GRAH-84•Watts: 2050 Shipping Weight: 19 lbs. (9 kg)
Voltage 120 208 240 100 200 220 240
Amps 17.1 9.9 8.5 20.5 10.3 9.3 8.5
Model GRAH-96•Watts: 2400 Shipping Weight: 21 lbs. (10 kg)
Voltage 120 208 240 100 200 220 240
Amps 20.0 11.5 10.0 24.0 12.0 10.9 10.0
Model GRAH-108•† Watts: 2500 Shipping Weight: 23 lbs. (10 kg)
Voltage 120 208 240 100 200 220 240
Amps 20.8 12.0 10.4 25.0 12.5 11.4 10.4
Model GRAH-120•†* Watts: 2800 Shipping Weight: 26 lbs. (12 kg)
Voltage 120 208 240 100 200 220 240
Amps --- 13.5 11.7 --- 14.0 12.7 11.7
Model GRAH-132†* Watts: 3120 Shipping Weight: 30 lbs. (14 kg)
Voltage 120 208 240 100 200 220 240
Amps --- 15.0 13.0 --- 15.6 14.2 13.0
Model GRAH-144†* Watts: 3450 Shipping Weight: 33 lbs. (15 kg)
Voltage 120 208 240 100 200 220 240
Amps --- 16.6 14.4 --- 17.3 15.7 14.4
Model GRA-18 Watts: 250 Shipping Weight: 6 lbs. (3 kg)
Voltage 120 208 240 100 200 220 240
Amps 2.1 1.2 1.0 2.5 1.3 1.1 1.0
Model GRA-24 Watts: 350 Shipping Weight: 7 lbs. (3 kg)
Voltage 120 208 240 100 200 220 240
Amps 2.9 1.7 1.5 3.5 1.8 1.6 1.5
Model GRA-30 Watts: 450 Shipping Weight: 8 lbs. (4 kg)
Voltage 120 208 240 100 200 220 240
Amps 3.8 2.2 1.9 4.5 2.3 2.1 1.9
Model GRA-36 Watts: 575 Shipping Weight: 9 lbs. (4 kg)
Voltage 120 208 240 100 200 220 240
Amps 4.8 2.8 2.4 5.8 2.9 2.6 2.4
Model GRA-42 Watts: 675 Shipping Weight: 10 lbs. (5 kg)
Voltage 120 208 240 100 200 220 240
Amps 5.6 3.2 2.8 6.8 3.4 3.1 2.8
Model GRA-48 Watts: 800 Shipping Weight: 11 lbs. (5 kg)
Voltage 120 208 240 100 200 220 240
Amps 6.7 3.8 3.3 8.0 4.0 3.6 3.3
Model GRA-54 Watts: 925 Shipping Weight: 13 lbs. (6 kg)
Voltage 120 208 240 100 200 220 240
Amps 7.7 4.4 3.9 9.3 4.6 4.2 3.9
Model GRA-60 Watts: 1050 Shipping Weight: 14 lbs. (6 kg)
Voltage 120 208 240 100 200 220 240
Amps 8.8 5.0 4.4 10.5 5.3 4.8 4.4
Model GRA-66 Watts: 1160 Shipping Weight: 16 lbs. (7 kg)
Voltage 120 208 240 100 200 220 240
Amps 9.7 5.6 4.8 11.6 5.8 5.3 4.8
Model GRA-72 Watts: 1275 Shipping Weight: 17 lbs. (8 kg)
Voltage 120 208 240 100 200 220 240
Amps 10.6 6.1 5.3 12.8 6.4 5.8 5.3
Model GRA-84•Watts: 1500 Shipping Weight: 19 lbs. (9 kg)
Voltage 120 208 240 100 200 220 240
Amps 12.5 7.2 6.3 15.0 7.5 6.8 6.3
Model GRA-96•Watts: 1725 Shipping Weight: 21 lbs. (10 kg)
Voltage 120 208 240 100 200 220 240
Amps 14.4 8.3 7.2 17.3 8.6 7.8 7.2
Model GRA-108†Watts: 1850 Shipping Weight: 23 lbs. (10 kg)
Voltage 120 208 240 100 200 220 240
Amps 15.4 8.9 7.7 18.5 9.3 8.4 7.7
Model GRA-120†* Watts: 2100 Shipping Weight: 26 lbs. (12 kg)
Voltage 120 208 240 100 200 220 240
Amps --- 10.1 8.8 --- 10.5 9.5 8.8
Model GRA-132†* Watts: 2320 Shipping Weight: 30 lbs. (14 kg)
Voltage 120 208 240 100 200 220 240
Amps --- 11.2 9.7 --- 11.6 10.5 9.7
Model GRA-144†* Watts: 2550 Shipping Weight: 33 lbs. (15 kg)
Voltage 120 208 240 100 200 220 240
Amps --- 12.3 10.6 --- 12.8 11.6 10.6
SPECIFICATIONS
Form No. GRM-0508 5
The shaded areas contain electrical information for Export models only.
Electrical Rating Chart — GRA Models Electrical Rating Chart — GRAH Models
•100 and 120 volt models with infinite switch require tandem (end-to-end) elements, consult factory for applications.
† Glo-Ray models 108″ through 144″ and 120 volt models of GRA-84 and GRA-96 contain tandem (end-to-end)
elements that may be individually controlled.
100 and 120 volt models may require additional switches, consult factory for applications.

CE approved units for 220-230 volt utilize a 220 volt heating system; 230-240 CE units utilize a 240 volt heating system.
*Not available in 100 or 120 volts.
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Model GRAHL-18 Watts: 470 Shipping Weight: 9 lbs. (4 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 3.9 2.7 2.5 4.7 3.0 2.1 2.0
Model GRAHL-24 Watts: 620 Shipping Weight: 10 lbs. (5 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 5.2 3.4 3.1 6.2 3.7 2.8 2.6
Model GRAHL-30 Watts: 780 Shipping Weight: 11 lbs. (5 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 6.5 4.2 3.8 7.8 4.5 3.5 3.3
Model GRAHL-36 Watts: 980 Shipping Weight: 13 lbs. (6 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 8.2 5.3 4.8 9.8 5.8 4.5 4.1
Model GRAHL-42 Watts: 1130 Shipping Weight: 15 lbs. (7 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 9.4 6.1 5.5 11.3 6.6 5.1 4.7
Model GRAHL-48 Watts: 1340 Shipping Weight: 17 lbs. (8 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 11.2 7.3 6.6 13.4 7.9 6.1 5.6
Model GRAHL-54 Watts: 1490 Shipping Weight: 19 lbs. (9 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 12.4 8.0 7.2 14.9 8.7 6.8 6.2
Model GRAHL-60 Watts: 1700 Shipping Weight: 21 lbs. (10 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 14.2 9.2 8.3 17.0 10.0 7.7 7.1
Model GRAHL-66•Watts: 1860 Shipping Weight: 22 lbs. (10 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 15.5 10.0 9.0 18.6 10.8 8.5 7.8
Model GRAHL-72•Watts: 2085 Shipping Weight: 24 lbs. (11 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 17.4 11.3 10.2 20.9 12.2 9.5 8.7
Model GRAHL-84•Watts: 2470 Shipping Weight: 28 lbs. (13 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 20.6 13.4 12.0 24.7 14.5 11.2 10.3
Model GRAHL-96•Watts: 2880 Shipping Weight: 32 lbs. (15 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 24.0 15.5 14.0 28.8 16.8 13.1 12.0
Model GRAHL-108†Watts: 3040 Shipping Weight: 36 lbs. (16 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 25.3 16.5 14.9 30.4 17.9 13.8 12.7
Model GRAHL-120†* Watts: 3400 Shipping Weight: 40 lbs. (18 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps --- 18.5 16.7 --- 20.0 15.5 14.2
Model GRAHL-132†*Watts: 3780 Shipping Weight: 44 lbs. (20 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps --- 20.5 18.5 --- 22.2 17.2 15.8
Model GRAHL-144†*Watts: 4170 Shipping Weight: 48 lbs. (22 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps --- 22.6 20.4 --- 24.5 19.0 17.4
Model GRAL-18 Watts: 370 Shipping Weight: 9 lbs. (4 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 3.1 2.2 2.0 3.7 2.5 1.7 1.5
Model GRAL-24 Watts: 470 Shipping Weight: 10 lbs. (5 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 3.9 2.7 2.5 4.7 3.0 2.1 2.0
Model GRAL-30 Watts: 570 Shipping Weight: 11 lbs. (5 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 4.8 3.2 2.9 5.7 3.5 2.6 2.4
Model GRAL-36 Watts: 755 Shipping Weight: 13 lbs. (6 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 6.3 4.3 3.9 7.6 4.7 3.4 3.1
Model GRAL-42 Watts: 855 Shipping Weight: 15 lbs. (7 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 7.1 4.7 4.3 8.6 5.2 3.9 3.6
Model GRAL-48 Watts: 1040 Shipping Weight: 17 lbs. (8 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 8.7 5.8 5.3 10.4 6.4 4.7 4.3
Model GRAL-54 Watts: 1165 Shipping Weight: 19 lbs. (9 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 9.7 6.4 5.9 11.7 7.0 5.3 4.9
Model GRAL-60 Watts: 1350 Shipping Weight: 21 lbs. (10 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 11.3 7.5 6.9 13.5 8.3 6.1 5.6
Model GRAL-66 Watts: 1460 Shipping Weight: 22 lbs. (10 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 12.2 8.1 7.3 14.6 8.8 6.6 6.1
Model GRAL-72 Watts: 1635 Shipping Weight: 24 lbs. (11 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 13.6 9.1 8.3 16.4 10.0 7.4 6.8
Model GRAL-84•Watts: 1920 Shipping Weight: 28 lbs. (13 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 16.0 10.7 9.8 19.2 11.7 8.7 8.0
Model GRAL-96•Watts: 2205 Shipping Weight: 32 lbs. (15 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 18.4 12.3 11.2 22.1 13.4 10.0 9.2
Model GRAL-108†Watts: 2390 Shipping Weight: 36 lbs. (16 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 19.9 13.4 12.2 23.9 14.7 10.9 10.0
Model GRAL-120†* Watts: 2700 Shipping Weight: 40 lbs. (18 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps --- 15.1 13.8 --- 16.5 12.3 11.3
Model GRAL-132†* Watts: 2980 Shipping Weight: 44 lbs. (20 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps --- 16.7 15.2 --- 18.2 13.5 12.4
Model GRAL-144†* Watts: 3270 Shipping Weight: 48 lbs. (22 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps --- 18.3 16.6 --- 20.0 14.9 13.6
SPECIFICATIONS
6Form No. GRM-0508
Electrical Rating Chart — GRAL Models Electrical Rating Chart — GRAHL Models
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N TE: GRAL & GRAHL Models that have multiple voltages listed, such
as 120/208, 120/240 or 100/200, have multiple circuits. For
example a 120/208 volt unit utilizes 120 volts for light circuit and
208 volts for the heat circuit(s). Consult Electrical Diagram
supplied with the unit for specific information.
CAUTION! Strip heaters equipped with incandescent lights
that require a circuit breaker larger than 20 amps for the
heat element must have a separate circuit breaker for the
incandescent lights that is 20 amps or less.
The shaded areas contain electrical information for Export models only.
•100 and 120 volt models with infinite switch may require tandem (end-to-end) elements, consult factory for applications.
† Glo-Ray models 108″ through 144″ and 120 volt models of GRAL-84 and GRAL-96 contain tandem (end-to-end)
elements that may be individually controlled.
100 and 120 volt models may require additional switches, consult factory for applications.
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CE approved units for 220-230 volt utilize a 220 volt heating system; 230-240 CE units utilize a 240 volt heating system.
*Not available in 100 or 120 volts.

Model GRAH-18D Watts: 700 Shipping Weight: 14 lbs. (6 kg)
Voltage 120 208 240 100 200 220 240
Amps 5.8 3.4 2.9 7.0 3.5 3.2 2.9
Model GRAH-24D Watts: 1000 Shipping Weight: 16 lbs. (7 kg)
Voltage 120 208 240 100 200 220 240
Amps 8.3 4.8 4.2 10.0 5.0 4.5 4.2
Model GRAH-30D Watts: 1320 Shipping Weight: 18 lbs. (8 kg)
Voltage 120 208 240 100 200 220 240
Amps 11.0 6.3 5.5 13.2 6.6 6.0 5.5
Model GRAH-36D Watts: 1600 Shipping Weight: 21 lbs. (10 kg)
Voltage 120 208 240 100 200 220 240
Amps 13.3 7.7 6.7 16.0 8.0 7.3 6.7
Model GRAH-42D Watts: 1900 Shipping Weight: 24 lbs. (11 kg)
Voltage 120 208 240 100 200 220 240
Amps 15.8 9.1 7.9 19.0 9.5 8.6 7.9
Model GRAH-48D Watts: 2200 Shipping Weight: 27 lbs. (12 kg)
Voltage 120 208 240 100 200 220 240
Amps 18.3 10.6 9.2 22.0 11.0 10.0 9.2
Model GRAH-54D Watts: 2500 Shipping Weight: 30 lbs. (14 kg)
Voltage 120 208 240 100 200 220 240
Amps 20.8 12.0 10.4 25.0 12.5 11.4 10.4
Model GRAH-60D Watts: 2800 Shipping Weight: 34 lbs. (15 kg)
Voltage 120 208 240 100 200 220 240
Amps 23.3 13.5 11.7 28.0 14.0 12.7 11.7
Model GRAH-66D•Watts: 3120 Shipping Weight: 37 lbs. (17 kg)
Voltage 120 208 240 100 200 220 240
Amps 26.0 15.0 13.0 31.2 15.6 14.2 13.0
Model GRAH-72D•Watts: 3450 Shipping Weight: 41 lbs. (19 kg)
Voltage 120 208 240 100 200 220 240
Amps 28.8 16.6 14.4 34.5 17.3 15.7 14.4
Model GRAH-84D†Watts: 4100 Shipping Weight: 44 lbs. (20 kg)
Voltage 120 208 240 100 200 220 240
Amps 34.2 19.7 17.1 41.0 20.5 18.6 17.1
Model GRAH-96D†Watts: 4800 Shipping Weight: 52 lbs. (24 kg)
Voltage 120 208 240 100 200 220 240
Amps 40.0 23.1 20.0 48.0 24.0 21.8 20.0
Model GRAH-108D†Watts: 5000 Shipping Weight: 59 lbs. (27 kg)
Voltage 120 208 240 100 200 220 240
Amps 41.7 24.0 20.8 50.0 25.0 22.7 20.8
Model GRAH-120D†*Watts: 5600 Shipping Weight: 66 lbs. (30 kg)
Voltage 120 208 240 100 200 220 240
Amps --- 26.9 23.3 --- 28.0 25.5 23.3
Model GRAH-132D†*Watts: 6240 Shipping Weight: 73 lbs. (33 kg)
Voltage 120 208 240 100 200 220 240
Amps --- 30.0 26.0 --- 31.2 28.4 26.0
Model GRAH-144D†*Watts: 6900 Shipping Weight: 80 lbs. (36 kg)
Voltage 120 208 240 100 200 220 240
Amps --- 33.2 28.8 --- 34.5 31.4 28.8
Model GRA-18D Watts: 500 Shipping Weight: 14 lbs. (6 kg)
Voltage 120 208 240 100 200 220 240
Amps 4.2 2.4 2.1 5.0 2.5 2.3 2.1
Model GRA-24D Watts: 700 Shipping Weight: 16 lbs. (7 kg)
Voltage 120 208 240 100 200 220 240
Amps 5.8 3.4 2.9 7.0 3.5 3.2 2.9
Model GRA-30D Watts: 900 Shipping Weight: 18 lbs. (8 kg)
Voltage 120 208 240 100 200 220 240
Amps 7.5 4.3 3.8 9.0 4.5 4.1 3.8
Model GRA-36D Watts: 1150 Shipping Weight: 21 lbs. (10 kg)
Voltage 120 208 240 100 200 220 240
Amps 9.6 5.5 4.8 11.5 5.8 5.2 4.8
Model GRA-42D Watts: 1350 Shipping Weight: 24 lbs. (11 kg)
Voltage 120 208 240 100 200 220 240
Amps 11.3 6.5 5.6 13.5 6.8 6.1 5.6
Model GRA-48D Watts: 1600 Shipping Weight: 27 lbs. (12 kg)
Voltage 120 208 240 100 200 220 240
Amps 13.3 7.7 6.7 16.0 8.0 7.3 6.7
Model GRA-54D Watts: 1850 Shipping Weight: 30 lbs. (14 kg)
Voltage 120 208 240 100 200 220 240
Amps 15.4 8.9 7.7 18.5 9.3 8.4 7.7
Model GRA-60D Watts: 2100 Shipping Weight: 34 lbs. (15 kg)
Voltage 120 208 240 100 200 220 240
Amps 17.5 10.1 8.8 21.0 10.5 9.5 8.8
Model GRA-66D•Watts: 2320 Shipping Weight: 37 lbs. (17 kg)
Voltage 120 208 240 100 200 220 240
Amps 19.3 11.2 9.7 23.2 11.6 10.5 9.7
Model GRA-72D•Watts: 2550 Shipping Weight: 41 lbs. (19 kg)
Voltage 120 208 240 100 200 220 240
Amps 21.3 12.3 10.6 25.5 12.8 11.6 10.6
Model GRA-84D†Watts: 3000 Shipping Weight: 44 lbs. (20 kg)
Voltage 120 208 240 100 200 220 240
Amps 25.0 14.4 12.5 30.0 15.0 13.6 12.5
Model GRA-96D†Watts: 3450 Shipping Weight: 52 lbs. (24 kg)
Voltage 120 208 240 100 200 220 240
Amps 28.8 16.6 14.4 34.5 17.3 15.7 14.4
Model GRA-108D†Watts: 3700 Shipping Weight: 59 lbs. (27 kg)
Voltage 120 208 240 100 200 220 240
Amps 30.8 17.8 15.4 37.0 18.5 16.8 15.4
Model GRA-120D†* Watts: 4200 Shipping Weight: 66 lbs. (30 kg)
Voltage 120 208 240 100 200 220 240
Amps --- 20.2 17.5 --- 21.0 19.1 17.5
Model GRA-132D†* Watts: 4640 Shipping Weight: 73 lbs. (33 kg)
Voltage 120 208 240 100 200 220 240
Amps --- 22.3 19.3 --- 23.2 21.1 19.3
Model GRA-144D†* Watts: 5100 Shipping Weight: 80 lbs. (36 kg)
Voltage 120 208 240 100 200 220 240
Amps --- 24.5 21.3 --- 25.5 23.2 21.3
SPECIFICATIONS
Form No. GRM-0508 7
Electrical Rating Chart —
GRA-XXD Models Electrical Rating Chart — GRAH-XXD Models
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The shaded areas contain electrical information for Export models only.
•100 and 120 volt models with infinite switch may require tandem (end-to-end) elements, consult factory for applications.
† Glo-Ray models 108″ through 144″ and 120 volt models of GRA-84D and GRA-96D contain tandem (end-to-end) elements that may
be individually controlled.
100 and 120 volt models may require additional switches, consult factory for applications.
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*Not available in 100 or 120 volts.

Model GRAHL-18D Watts: 820 Shipping Weight: 14 lbs. (6 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 6.8 4.4 3.9 8.2 4.7 3.7 3.4
Model GRAHL-24D Watts: 1120 Shipping Weight: 16 lbs. (7 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 9.3 5.8 5.2 11.2 6.2 5.1 4.7
Model GRAHL-30D Watts: 1440 Shipping Weight: 19 lbs. (9 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 12.0 7.3 6.5 14.4 7.8 6.5 6.0
Model GRAHL-36D Watts: 1780 Shipping Weight: 22 lbs. (10 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 14.8 9.2 8.2 17.8 9.8 8.1 7.4
Model GRAHL-42D Watts: 2080 Shipping Weight: 25 lbs. (11 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 17.3 10.6 9.4 20.8 11.3 9.5 8.7
Model GRAHL-48D Watts: 2440 Shipping Weight: 29 lbs. (13 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 20.3 12.6 11.2 24.4 13.4 11.1 10.2
Model GRAHL-54D Watts: 2740 Shipping Weight: 33 lbs. (15 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 22.8 14.0 12.4 27.4 14.9 12.5 11.4
Model GRAHL-60D Watts: 3100 Shipping Weight: 37 lbs. (17 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 25.8 16.0 14.2 31.0 17.0 14.1 12.9
Model GRAHL-66D•Watts: 3420 Shipping Weight: 39 lbs. (18 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 28.5 17.5 15.5 34.2 18.6 15.5 14.3
Model GRAHL-72D•Watts: 3810 Shipping Weight: 42 lbs. (19 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 31.8 19.6 17.4 38.1 20.9 17.3 15.9
Model GRAHL-84D†Watts: 4520 Shipping Weight: 47 lbs. (21 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 37.7 23.2 20.6 45.2 24.7 20.5 18.8
Model GRAHL-96D†Watts: 5280 Shipping Weight: 56 lbs. (25 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 44.0 27.1 24.0 52.8 28.8 24.0 22.0
Model GRAHL-108D†Watts: 5540 Shipping Weight: 64 lbs. (29 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 46.2 28.5 25.3 55.4 30.4 25.2 23.1
Model GRAHL-120D†*Watts: 6200 Shipping Weight: 72 lbs. (33 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps --- 31.9 28.3 --- 34.0 28.2 25.8
Model GRAHL-132D†*Watts: 6900 Shipping Weight: 79 lbs. (36 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps --- 35.5 31.5 --- 37.8 31.4 28.8
Model GRAHL-144D†*Watts: 7620 Shipping Weight: 86 lbs. (39 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps --- 39.2 34.8 --- 41.7 34.6 31.8
Model GRAL-18D Watts: 620 Shipping Weight: 14 lbs. (6 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 5.2 3.4 3.1 6.2 3.7 2.8 2.6
Model GRAL-24D Watts: 820 Shipping Weight: 16 lbs. (7 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 6.8 4.4 3.9 8.2 4.7 3.7 3.4
Model GRAL-30D Watts: 1020 Shipping Weight: 19 lbs. (9 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 8.5 5.3 4.8 10.2 5.7 4.6 4.3
Model GRAL-36D Watts: 1330 Shipping Weight: 22 lbs. (10 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 11.1 7.0 6.3 13.3 7.6 6.0 5.5
Model GRAL-42D Watts: 1530 Shipping Weight: 25 lbs. (11 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 12.8 8.0 7.1 15.3 8.6 7.0 6.4
Model GRAL-48D Watts: 1840 Shipping Weight: 29 lbs. (13 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 15.3 9.7 8.7 18.4 10.4 8.4 7.7
Model GRAL-54D Watts: 2090 Shipping Weight: 33 lbs. (15 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 17.4 10.9 9.7 20.9 11.7 9.5 8.7
Model GRAL-60D Watts: 2400 Shipping Weight: 37 lbs. (17 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 20.0 12.6 11.3 24.0 13.5 10.9 10.0
Model GRAL-66D Watts: 2620 Shipping Weight: 40 lbs. (18 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 21.8 13.7 12.2 26.2 14.6 11.9 10.9
Model GRAL-72D Watts: 2910 Shipping Weight: 42 lbs. (19 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 24.3 15.3 13.6 29.1 16.4 13.2 12.1
Model GRAL-84D•Watts: 3420 Shipping Weight: 47 lbs. (21 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 28.5 17.9 16.0 34.2 19.2 15.5 14.3
Model GRAL-96D•Watts: 3930 Shipping Weight: 56 lbs. (25 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 32.8 20.6 18.4 39.3 22.1 17.9 16.4
Model GRAL-108D†Watts: 4240 Shipping Weight: 64 lbs. (29 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps 35.3 22.3 19.9 42.4 23.9 19.3 17.7
Model GRAL-120D†* Watts: 4800 Shipping Weight: 72 lbs. (33 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps -- 25.2 22.5 --- 27.0 21.8 20.0
Model GRAL-132D†* Watts: 5300 Shipping Weight: 79 lbs. (36 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps --- 27.8 24.8 --- 29.8 24.1 22.1
Model GRAL-144D†* Watts: 5820 Shipping Weight: 86 lbs. (39 kg)
Voltage 120 120/208 120/240 100 100/200 220 240
Amps --- 30.5 27.3 --- 32.7 26.5 24.3
SPECIFICATIONS
8Form No. GRM-0508
Electrical Rating Chart —
GRAL-XXD Models Electrical Rating Chart —
GRAHL-XXD Models
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The shaded areas contain electrical information for Export models only.
•100 and 120 volt models with infinite switch may require tandem (end-to-end) elements, consult factory for applications.
† Glo-Ray models 108″ through 144″ and 120 volt models of GRAL-84D and GRAL-96D contain tandem (end-to-end) elements that
may be individually controlled.
100 and 120 volt models may require additional switches, consult factory for applications.
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CE approved units for 220-230 volt utilize a 220 volt heating system; 230-240 CE units utilize a 240 volt heating system.
*Not available in 100 or 120 volts.