Qmark MUH35C User Manual [en, es, fr]
MODEL NO. MUH35C
Unit Heater Fan-Forced
Built-in Thermostat
Installation, Operation & Maintenance Instr uctions
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
Read Carefully - These instructions contain vital information
for the proper installation, use and efficient operation of the
heater. Carefully read these instructions before installation,
operation, or cleaning of the heater. Failure to adhere to the
instructions could result in fire, electric shock, serious personal
injury, death or property damage. Save these instructions and
review frequently for continuing safe operation and instructing
future users.
IMPORTANT NOTE:
As received, heater is for hard wire installation and complies
with UL Standard 2021 and CSA Standard C22.2 No. 46M1988.
For Field Conversion to a Moveable Electric Heater, Model
PHCS1B Cord Kit must be installed. With Cord Kit installed,
complies with UL Standard 1278 and CSA Standard C22.2
No. 46-M1988. Refer to user instructions provided with Cord
Kit when using as a movable heater.
1. Use minimum 60 °C copper wire only.
2. Observe wall, floor, and ceiling clearance requirements
(page 2).
3. All wiring must conform to National and Local electrical
codes, and the heater must be grounded as a precaution
against possible electrical shock.
4. All electrical power must be disconnected at main service
box before installation, inspection, cleaning, or servicing of
this heater.
5. Check heater voltage and amperage on back of heater to
make sure it agrees with the electric service supplied.
!
6. Ground fault circuit protection is required if heater is used in
damp areas such as basements or garages. This heater is
not suitable for use in wet or very humid locations.
7. Do not use outdoors.
8. Never locate heater where it may fall into a bathtub or other
water container.
9. Do not insert or allow foreign objects to enter any ventilation
or exhaust opening as this may cause an electric shock, fire,
or damage the heater.
10. 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. Clean as often
as necessary to prevent dust from clogging the grille or element fins. Keep all electrical cords, drapes, paper, plastics
and other combustibles away from heater.
11. Heater air flow must be directed parallel to or away from
adjacent walls.
12. 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.
13. If this heater or its power supply cable become damaged or
malfunction in any way, disconnect power at main service
panel, discontinue use, and have unit repaired by a reputable repair service.
14. Do not operate heater without stand.
15. When heater is to be wall or ceiling mounted, the anchoring
provisions must be of sufficient strength to support the total
weight of the heater plus the weight of the mounting provisions. Failure to properly secure the supporting members of
the building structure could allow the heater to fall.
SAVE THESE INSTRUCTIONS
Specifications
MIN
8" TO
CEILING
TO WALL
MIN 8"
MIN. 8"
TO WALL
MIN. 8"
TO WALL
ELEMENTS FRONT
MIDDLE
REAR
HEAT SW.
HI
LOW
1
2
3
2
3
1
AUTO
FAN SW.
ON
TERMINAL BLOCK
6
4
INDICATOR LIGHT
MANUAL RESET
THERMAL LIMIT
BLACK
GREEN
BLACK
SUPPLY LEADS
WIRING COMPARTMENT
FAN
DELAY
MOTOR
L1
OFF
CYL
L2
THERMOSTAT
Heater Voltage 240 / 208 VAC Amps
KW Rating: @240V 5.0 kW High 21
3.3 kW Low 14
@208V 3.7 kW High 18
2.5 kW Low 12
imensions: 16”H x 21”W x 8”D
D
Weight: 22 lbs
GENERAL
Location of Heater
This heater has user controls. It may be desirable to reach
these controls after installation.
he direction of air flow should not be restricted by columns,
T
machinery, etc., and the air flow should wipe exposed walls
rather than blowing directly at them. When more than one
heater is used in a area, the heaters should be arranged so that
the air discharge of each heater supports the air flow of the others to provide best circulation of warm air.
Mounting Height
When air flow of the heater is directed vertically, the minimum
mounting height is 6 feet, and the maximum mounting height is
15 feet. When the air flow of the heater is directed horizontally,
the minimum recommended mounting height is 6 feet, and the
maximum recommended height is 8 feet.
CEILING MOUNT
This heater may be mounted to any ceiling that will support the
weight of the heater.
First remove the mounting stand from the heater, then remove
four rubber grommets from stand. Secure stand to structural
members of ceiling with four 1/4” diameter bolts (not provided).
In wood joist use 1-1/2” long lag bolts. In steel beams use
machine bolts secured with nuts and lockwashers. Never use
bolts smaller than 1/4” diameter.
Replace the heater in the stand and tighten knobs to lock in
place. Two large rubberwashers go between heater and stand,
one on either side.
WALL MOUNT
SEE WARNING NO. 15.
This heater may be mounted on any wall that will support the
weight of the heater. First remove the mounting stand from the
heater, then remove four rubber grommets from stand. Secure
stand to structural members of wall with four 1/4” dia. X 1-1/2”
long lag bolts (not provided). In masonry walls use metal
expansion shields or toggle bolts. Never use bolts smaller than
1/4” diameter.
Replace the heater in the stand and tighten knobs to lock in
place. Two large rubber washers go between heater and stand,
one on either side.
KEYHOLE
SLOT
USE
K
F
MOUNTING
EYHOLES
OR WALL
OUNTING
M
OLES
H
RE 16” O.C.
A
CONNECTING THE POWER
Hardware Needed
You also will need the following hardware which you can pur-
chase from your local hardware store or electrical supply house:
• Enough 10 gauge copper wire to run power from the service
box to the heating unit. Copper wire must have a minimum
temperature rating of 60 degrees C. DO NOT USE
ALUMINUM WIRE WITH THIS UNIT.
• Proper wire connectors for your application. (See illustration
that follows.)
For certain applications, conduit may be required. Check local
electrical codes. Also, if you run the wiring in conduit and wish
to be able to turn the heater, be sure to purchase enough flexible conduit to allow the heater to be turned.
Loosen the two screws that secure the wiring compartment
cover to the upper right hand area of the back of the heater and
remove the cover.
Attach the cable connector to the cover as shown above and
slide the 10 gauge wire through the cable connector. Pull
enough of the wire through the connector so you will have
enough wire to work with when you make the connections.
TO PREVENT HEATER FROM POSSIBLY FALLING, DO NOT
USE KEYHOLE SLOTS FOR CEILING MOUNT APPLICATION. SEE ALSO WARNING NO. 15.
CIRCULAR
HOLE
USE CIRCULAR
HOLES FOR
CEILING MOUNTING. DO NOT
USE KEYHOLES.
2
Connectors, cable, and hardware used to wire the MUH35C
Connect the field wiring to the heater wiring as shown in the
wiring diagram.
After connecting the wiring, replace the wiring compartment
cover making sure none of the wires are pinched between the
cover and the heater. Tighten the screws securely.
Optional Plug-in Connection
If this heater is intended to be converted to a cord-connected
model, the QMark model number PHCS1B cord assembly must
be used. Refer to the instructions packed with the cord assembly for installing the cord onto the heater.
THE MUH35C MAY BE CONVERTED TO A CORD CONNECTED MODEL ONLY BY THE ADDITION OF THE QMARK
MODEL NUMBER PHCS1B CORD ASSEMBLY. THE USE OF
ANY OTHER CORD MAY RESULT IN A FIRE OR ELECTRICAL SHOCK.
or chemical cleaners as these may harm the finish.
f heater is used in a very dusty location, use a vacuum cleaner
I
dust brush to remove dust and other foreign material from the
grilles.
SERVICE
This heater does not require any routine maintenance other than
occasional cleaning to prevent clogging of intake grille opening.
To clean air intake grille, use vacuum with brush attachment or
high pressure air. The motor is permanently lubricated.
Do not operate the heater if the heater malfunctions or has been
damaged in any manner.
Call the toll-free number listed for assistance.
To Reset Safety Thermal Limit Control
Your heater is equipped with a manual reset safety thermal limit
control that will automatically turn the heater off to prevent a fire
if the heater overheats. This control is located on front of the
heater just above the thermostat and is marked “PUSH TO
RESET”. To reset, allow the heater to cool then simply push the
red button in until it snaps. The heater should immediately
return to normal operation.
OPERATION OF THE SAFETY THERMAL LIMIT CONTROL
INDICATES THE HEATER HAS BEEN SUBJECTED TO
SOME ABNORMAL CONDITION. IT IS RECOMMENDED
THAT THE HEATER BE CHECKED BY A REPUTABLE ELECTRICIAN OR REPAIR SERVICE TO INSURE THE HEATER
HAS NOT BEEN DAMAGED.
HEATING OPERATION
To operate the heater, first select either high or low position on
the heat selector switch, then turn the thermostat knob as far as
it will go in the clockwise direction. The indicator light will come
on and remain on as long as the heater is in the operating
mode. When the room temperature reaches the desired level,
slowly turn the thermostat knob counterclockwise until the thermostat clicks. The indicator light will remain on. The heater will
automatically cycle off and on as needed to maintain desired
temperature. To shut heater off, turn thermostat knob as far as it
will go in the counterclockwise direction until the indicator light is
off.
The fan selector switch allows continuous or cycling fan operation by selecting either the “ON” or “Auto” position, respectively.
Automatic Fan Delay: This heater incorporates an automatic
fan delay. When the thermostat calls for heat, fan action is
delayed momentarily until the heating element is warm. When
the thermostat is satisfied, the fan continues to operate until the
heating element is cool. This action prevents circulation of cold
air, and avoids exposing unit to residual heat, thus providing
higher comfort level and prolonged element life.
CLEANING
Turn thermostat off. Disconnect electrical power before cleaning
heater. Use a soft cloth for dusting. For cleaning use only a
damp rag and nonabrasive dish detergent. Do not use abrasive
3
REF.
NO
.
1
2.
3.
.
4
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
RENEWAL PARTS IDENTIFICATION
DESCRIPTION
Guard, Element
Element Assembly
Spring, Element
Spring, Capillary
Switch, Rocker
Grille
Indicator Light
Knob, Thermostat
Thermostat
Limit, Manual Reset
Block Terminal
racket, Cover Screw
B
Cover, Control Comp.
Knob, Stand
Stand, Portable
Washer, Rubber
Blade, Fan
Motor
Case, Back
Bushing, Strain Relief
Wiring Comp. Divider
Wiring Cover Plate
Bracket, Mounting
Fan Delay
PART NUMBER
2504-0011-001
1802-0087-032
5208-0073-000
5208-0072-000
S99814893A000
1402-2154-001
3510-2007-000
3301-2012-001
5813-2018-000
4520-11004-000
5823-0003-001
1215-0291-000
1402-0336-000
3301-2018-000
5210-2000-004
W10814895A000
1210-2000-000
3900-2002-006
1425-2005-002
25221-70011
1614-2000-000
4503-2010-002
1215-2001-002
4520-0010-000
4
2
All products manufactured by Marley Engineered Products are warranted against defects in workmanship and materials for one year from date of installation, except
LIMITED WARRANTY
heating elements which are warranted against defects in workmanship and materials for five years from date of installation. 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 Engineered Products Service Center. Within the limitations of this warranty, inoperative units should be returned to the nearest Marley authorized service center or the Marley Engineered Products 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 Engineered Products.
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 ENGINEERED PRODUCTS 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 Engineered Products 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 Engineered Products. 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. 5200-2197-006
ECR 38424
08/09
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