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WH Series

Fan Forced 

Wall Heaters

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 indus-
try.  Please carefully read the installation and maintenance directions shown in this manual.  You should
enjoy years of efficient heating comfort with this heater from Marley Engineered Products... the indus-
try’s leader in design, manufacturing, quality and service.

... The Employees of
Marley Engineered Products

Installation & Maintenance Instructions

Read Carefully

These instructions are written to help

you prevent difficulties that might arise during installation
of heaters.  Studying the instructions first may save you
considerable time and money later.  Observe the following
procedures, and cut your installation time to a minimum.

TO REDUCE RISK OF FIRE OR ELECTRIC SHOCK:

1.

Disconnect all power coming to heater at main service panel
before wiring or servicing.

2.

All wiring  must be in accordance with the National and  Local
Electrical Codes and the heater must be grounded.

3.

Verify the power supply voltage coming to heater matches the
ratings printed on the heater nameplate before energizing.

4.

This heater is hot when in use. To avoid burns, do not let bare
skin touch hot surfaces.

5.

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

6.

Do not block air intakes or exhaust in any manner. Keep 
combustible materials, such as crates,  drapes, etc., away
from heater. Do not install behind doors, furniture, towels,
or boxes.

7.

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

8.

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.

9.

This heater is not approved for use in corrosive atmospheres
such as marine, green house, or chemical storage areas.

SAVE THESE INSTRUCTIONS

WARNING

!

2" (50.8mm)

1-5/16" (33mm)

1-21/32"

(42mm)

5/14"

(133mm)

Knockout

14-3/8"

(365mm)

19-3/16"

(487mm)

18-1/4"

464mm 

15-21/64"

(389mm)

File E21609

Summary of Contents for WH Series

Page 1: ...ll wiring must be in accordance with the National and Local Electrical Codes and the heater must be grounded 3 Verify the power supply voltage coming to heater matches the ratings printed on the heater nameplate before energizing 4 This heater is hot when in use To avoid burns do not let bare skin touch hot surfaces 5 Do not insert or allow foreign objects to enter any ventilation or exhaust openi...

Page 2: ...ides of box Top flange of back box should protrude approximately 1 2 or 12 7mm from finished wall surface b Secure the back box in place with wood screws or nails 4 Wiring Disconnect Switch a Connect the power supply wires to the blue wires of the disconnect switch using wire connectors see wiring diagram pg 4 b Ground the back box using the green ground screw located in the inside top of the back...

Page 3: ...to Figure 5 and proceed as follows 1 Insert the heater assembly into back box placing the four mounting holes with key hole slots over the screws in the box Tighten all screws securely 2 If surface mounting frame is used ensure that the frame is even with all four heater assembly tabs before tightening screws 3 Connect the two disconnected switch wires to the heat control switch ther mostat leads ...

Page 4: ...WIRING DIAGRAM FOR 4800 WATT 208 VOLT SINGLE PHASE WALL HEATER Wiring Diagrams WIRING DIAGRAM FOR THREE PHASE WALL HEATERS 1500 1800 4800 4000 3000 WATT HEATERS 120V 208V 240V OR 277V See diagram no 2 for 4800W 208V 1Ph Full wattage heaters can be converted to half wattage by moving the red jumper wire connecting the top and bottom element terminals NOTE Conversion not applicable to 120V models 20...

Page 5: ... inoperative units should be returned to the nearest Marley authorized ser vice center or the Marley Engineered Products 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 EXPRE...

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