Qmark TBX User Manual [en, es, fr]

18.5”

23.5”

TBX104 & TBX754

17.7”

PORTABLE INDUSTRIAL

ELECTRIC FORCED AIR

HEATER

28.5”

25”

37.5”

Installation & Maintenance Instructions

Dear Owner,

Congratulations! Thank you for purchasing this new heater manufactured by Marley Engineered Products.
You have made a wise investment selecting the highest quality product in the heating industry.
Please carefully read the installation and maintenance instructions shown in this manual. You should enjoy
years of efficient heating comfort with this product from Marley Engineered Products... the industry’s leader in
design, manufacturing, quality and service.

... The Employees of
Marley Engineered Products

WARNING

CAUTION - TO REDUCE RISK OF FIRE AND ELECTRIC
SHOCK OR INJURY TO PERSONS, OBSERVE THE
FOLLOWING:

1. Read all instructions before using this heater.

2. This heater is hot when in use. To avoid burns, do not let
bare skin touch hot surfaces. If provided, use handles when
moving this heater. Keep combustible materials, such as
furniture, pillows, bedding, papers, clothes, and curtains at
least 3 feet (0.9m) from the front of the heater and keep
them away from the sides and rear.

3. Extreme caution is necessary when any heater is used by or
near children or invalids and whenever the heater is left
operating and unattended.

4. Always unplug heater when not in use.

5. Do not operate any heater with a damaged cord or plug or
after the heater malfunctions, had been dropped, or dam­aged in any manner. Return heater to authorized service
facility for examination, electrical or mechanical adjustment,
or repair.

6. Do not use outdoors.

7. This heater is not intended for use in bathrooms, laundry
areas and similar indoor locations. Never locate heater
where it may fall into a bathtub or other water container.

!

8. Do not run cord under carpeting. Do not cover cord with
throw rugs, runners, or the like. Arrange cord away from
traffic area and where it will not be tripped over.

9. To disconnect heater, turn controls off, then remove plug
from outlet.

10. Connect to properly grounded outlets only.

11. Do not insert or allow foreign objects to enter any ventilation
or exhaust opening as this may cause an electric shock or
fire, or damage the heater.

12. To prevent a possible fire, do not block air intakes or
exhaust in any manner. Do not use on soft surfaces, like a
bed, where openings may become blocked.

13. A heater has hot and arcing or sparking parts inside. Do not
use it in areas where gasoline, paint, or flammable liquids
are used or stored.

14. Use this heater only as described in this manual. Any other
use not recommended by the manufacturer may cause fire,
electric shock, or injury to persons.

15. The heater is not intended for use with an extension cord.

16. Save these instructions

SAVE THESE INSTRUCTIONS

GG

Specifications

MODEL FAN TEMP SHIP CORD
NUMBER KW VOLTS BTUH PH AMPS OUTPUT RISE WT SET

TBX104 9.5 240 32,424 1 39.44 625 CFM 48°F @ 77°F 117 lbs INCLUDED (8-FT)
TBX754 7.5 240 25,598 1 31.14 625 CFM 38°F @ 77°F 110 lbs INCLUDED (8-FT)

WARNING

!

RISK OF FIRE OR DISCOLORATION OF TEMPERATURE
SENSITIVE FABRICS. DO NOT USE AS A RESIDENTIAL OR
HOUSEHOLD HEATER. KEEP COMBUSTIBLE MATERIAL
AND SUCH FABRICS AWAY FROM HEATER. HEATERS IN
THE HEAT MODE SHOULD NOT BE OPERATED IN ROOM
TEMPERATURES ABOVE 80°F. FAN MOTOR IS NOT
DESIGNED TO OPERATE IN AMBIENTS BELOW -40°F.

ASSEMBLY INSTRUCTIONS

This heater is shipped partially assembled. The handle is
shipped securely under the heater to avoid damage. Take han­dle and insert in the vertical position as shown in figure 1.
Secure handle using the retaining clips supplied. The heater is

now fully assembled.

Handle in full
upright position

Retaining Clip

WARNING

!

ELECTRIC SHOCK HAZARD. DISCONNECT ALL POWER
BEFORE INSTALLING OR SERVICING HEATER. FAILURE
TO DO SO COULD RESULT IN PERSONAL INJURY OR
PROPERTY DAMAGE. HEATER MUST BE EFFECTIVELY
GROUNDED IN ACCORDANCE WITH THE NATIONAL
ELECTRICAL CODE, NFPA 70.V

WIRING INSTRUCTIONS:

1. Use heater only on the voltage and frequency specified on
the nameplate.

2. Heater includes a cord with plug. Receptacle must be
NEMA 6-50R to match with unit plug (see Figure 2).

3. Insure plug fits tightly into outlet. A loose fit can cause
overheating and damage to the plug.

Limit Contactor

Power Cord
(Supply)

PowerBoard
(240 V)

Element

Figure 1

Figure 2

Plug

NEMA 6-50P

Receptacle

NEMA 6-50R

Limit

Thermostat

Time Heat Relay

Motor
Cont

Motor

Figure 3

THERMOSTAT AND FAN CONTROL OPERATION:

Heaters include a built in thermostat to control the heater and
fan only operation. When in the full counterclockwise (OFF)
position, both the heater and fan are deenergized. Turning the
knob clockwise from the OFF position to the FAN position will
energize the fan only, for use in summer cooling. Turned further
in the clockwise direction will operate the heater, with the high­est temperature setting in the extreme clockwise position. The
temerature range in the heater mode is approximately 40°F at
the low setting to approximately 100°F at the highest setting.

WARNING

ELECTRIC SHOCK HAZARD. DISCONNECT HEATER FROM
POWER SUPPLY BEFORE SERVICING AND/OR INSPECT­ING THE HEATER.

!

MAINTENANCE INSTRUCTIONS:

Heaters should be cleaned and inspected periodically to
assure efficient safe operation. If power cord or plug
becomes damaged, repair or replace immediately. Do not
continue to operate unit with damaged cord or plug.

Using compressed air or vacuum, remove dust, dirt and
debris from heater element, fan blade and around motor to
allow for proper airflow through unit. While unplugged from
outlet, periodically check tightness of all electrical connec­tions and all assembly hardware. Fan motor has permanently
lubricated bearings and requires no additional lubrication.

Clean exterior surfaces with mild soap and
water as necessary. Do not use harsh
chemicals. Exterior surfaces are of a
hight quality powder coat and should
not require repainting. However, if
desired, the exterior may be
repainted using high quality
enamel. However, care
must be taken to avoid
getting paint on interior
surfaces including heating
element and motor. Surfaces
should be sanded and
primed to help the new
paint to adhere.

12

11

16

7

6

1

Figure 4

14

13

5

2

4

10

3

8

15

9

REPLACEMENT PARTS LIST

REF
NO DESCRPITION PART NO. QTY

1 Thermostat 5813-2059-000 1
2 Element: 9.5KW 302006813 1

3 Motor 490059004 1
4 Fan Blade 490011001 1
5 Element Contactor 5018-0006-002 1
6 Limit 410169001 1
7 Fan Relay 5018-0003-002 1
8 Time Delay 410171003 1
9 Wheel 6406-0002-000 2
10 Grille - Inlet 312007806 1
11 Grille - Outlet 2501-10513-800 1
12 Latch 3505-2002-000 1
13 Tool Box Handle 2710-10586-000 1
14 Handle 2710-2012-800 1
15 Terminal Block 480100001 1
16 Knob 3301-2053-000 1
* Cord and Plug 1016-10593-000 1

* Not shown

7.5KW 302006814 1

All products manufactured by Marley Electric Heating are warranted against defects in workmanship and materials for one year from date of purchase, except heating

LIMITED WARRANTY

elements which are warranted against defects in workmanship and materials for five years from date of purchase. This warranty does not apply to damage from accident,
misuse, or alteration; nor where the connected voltage is more than 5% above the nameplate voltage; nor to equipment improperly installed or wired or maintained in vio­lation of the product’s installation instructions. All claims for warranty work must be accompanied by proof of the date of installation.

The customer shall be responsible for all costs incurred in the removal or reinstallation of products, including labor costs, and shipping costs incurred to return products
to Marley Electric Heating Service Center. Within the limitations of this warranty, inoperative units should be returned to the nearest Marley authorized service center or
the Marley Electric Heating Service Center, and we will repair or replace, at our option, at no charge to you with return freight paid by Marley. It is agreed that such repair
or replacement is the exclusive remedy available from Marley Electric Heating.

THE ABOVE WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED, AND ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE WHICH EXCEED THE AFORESAID EXPRESSED WARRANTIES ARE HEREBY DISCLAIMED AND EXCLUDED FROM
THIS AGREEMENT. MARLEY ELECTRIC HEATING SHALL NOT BE LIABLE FOR CONSEQUENTIAL DAMAGES ARISING WITH RESPECT TO THE PRODUCT,
WHETHER BASED UPON NEGLIGENCE, TORT, STRICT LIABILITY, OR CONTRACT.

Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above exclusion or limitation may not apply to you. This warranty gives
you specific legal rights, and you may also have other rights which vary from state to state.

For the address of your nearest authorized service center, contact Marley Electric Heating in Bennettsville, SC, at 1-800-642-4328. Merchandise returned to the factory
must be accompanied by a return authorization and service identification tag, both available from Marley Electric Heating. When requesting return authorization, include
all catalog numbers shown on the products.

HOW TO OBTAIN WARRANTY SERVICE AND
WARRANTY PARTS PLUS GENERAL INFORMATION

1. Warranty Service or Parts 1-800-642-4328

2. Purchase Replacement Parts 1-800-654-3545

3. General Product Information www.marleymep.com

Note: When obtaining service always have the following:

1. Model number of the product

2. Date of manufacture

3. Part number or description

470 Beauty Spot Rd. East
Bennettsville, SC 29512 USA

Part No. 5200-10439-003

ECR 39228

09/11