background image

HEATER CHECKOUT AND OPERATION

1.

After  heater  is  completely  assembled,  rotate  wall  thermostat  knob
counterclockwise until control stops.  This is the minimum heat setting.

2.

Turn power supply to heater “ON” at main switch panel.

3.

Heater  should  not  operate.    If  it  operates,  disconnect  power  and  re-
check wiring.

4.

Rotate  wall  thermostat  knob  clockwise  until  it  stops  (maximum  heat
setting) and wait at least 2 minutes.  Fan control will delay fan coming
on until element is warm.

5.

If heater and fan do not come on, disconnect power and check wiring.

6.

Allow  heater  to  continue  to  operate  until  room  temperature  reaches
desired comfort level.  Then rotate wall thermostat knob counterclock-
wise slowly until thermostat clicks off.  Fan must continue to operate
for  a  minute  or  so  until  element  cools.    If  fan  turns  off  immediately
when  thermostat  is  turned  off,  disconnect  power  and  check  wiring.
(See Fan Delay Notice).

7.

It  may  be  necessary  to  readjust  thermostat  a  time  or  so  until  exact
comfort  level  is  attained.    Rotation  in  the  clockwise  direction  will
increase the amount of time the heater will produce heat.  Rotation in
the  counterclockwise  direction  will  reduce  the  amount  of  time  the
heater is on.

NOTE: For best results, the heater should be left “ON” constantly during 
the heating season as the thermostat, when properly set, will maintain the 
desired temperature.  In the full counter-clockwise position the heater will 
remain off until the room temperature drops well below freezing.

MAINTENANCE AND CLEANING

Your heater is designed for years of trouble-free operation and requires 
no special maintenance other than occasional cleaning.  The motor is 
permanently lubricated.

Once each year, the heater should be cleaned to remove dust and other 
foreign material which has collected during the heating season, as
follows:

1.

Turn power off at main switch.

2.

Remove  front  cover  by  depressing  plastic  tabs  with  a  flat  bladed
screwdriver as shown in Figure 4.  Release both tabs on one side then
rotate cover off of heater fan assembly.

3.

Use vacuum cleaner with brush attachment to remove dust  and dirt
that  has  accumulated  in  heater  (especially  around  element  and  fan
blade).  Do not use water or any cleaners to clean heater
components.

4.

Replace grille.

5.

Wipe grille clean with a damp cloth.  DO NOT use waxes or any clean-
ers that leave a residue since these may discolor during heater oper-
ation.

6.

Turn  the  main  line  switch  on  at  the  switch  panel  to  restore  power  to
heater.  The heater is now ready for another season of operation.

OPERATIONAL NOTICE
Your heater is equipped with an automatic reset over-temperature limit con-
trol that will automatically turn the heater off to prevent a fire if the heater
overheats.  

3

INSTALLATION OF FRONT COVER (GRILLE) 

1.

Position the front cover so the four (4) holes on the side align with
the tabs on the plastic pieces of the heater/fan assembly.

2.

Hook  the  front  cover  over  the  tabs  on  one  side  then  rotate  the  front
cover into place making sure that all four tabs are snapped onto the
front cover.

1

2

3

4

1

2

3

4

Disconnect
Switch
Assembly

Over-
Temperature
Limit

Fan Delay Control

Elements

Fan Motor

Red Jumper
(Remove for half wattage)

L1

L2

Tstat leads (Red)

G

Power leads
(Black & White)

Figure 3

Figure 4

WIRING DIAGRAM

FIELD WIRING

FACTORY WIRING

TO REDUCE RISK OF FIRE OR PERMANENT DAMAGE TO HEATER,
THERMOSTAT MUST NOT CUT POWER  TO  FAN.  THERMOSTAT
MUST BE  WIRED  AS  SHOWN  IN  WIRING  DIAGRAM  SO  THAT IT
CYCLES HEATING ELEMENTS ONLY.

CAUTION

!

NOTE: For 120 and 277 volt heaters connect the white neutral supply
lead to the heaters white pigtail lead, and connect the black supply lead 
to the heaters black pigtail lead.  For 208 and 240 volt heaters change the 
color of the heaters white pigtail lead to black by wrapping with black elec-
trical tape. (Most electrical codes require the supply leads to be connec-
ed to black leads).  Then connect the two black supply leads to the two
black receptacle leads.  Connect the two red thermostat leads to thermo-
stat as shown in wiring diagram.
2.

Slide supply wiring under retaining straps in back box to hold in place.

3.

Insert wiring plug from heater/fan assembly into socket in back box.

4.

Fit  heater/fan  assembly  into  back  box  and  secure  in  place  with  (2)
screws provided through the center slots in the fan assembly.

NOTE: Use the screws provided by the factory to install heater/fan
assembly to the back box.
5.

Turn disconnect switch mounted on heater/fan assembly “ON”.

Figure 2

Remove red
jumper for
lower wattage
rating

Summary of Contents for U1000

Page 1: ...ng to heater matches the ratings printed on the heater nameplate before energizing 4 Do not operate heater without grille installed 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 To prevent a possible fire do not block air intakes or exhaust in any manner Keep combustible materials such as crat...

Page 2: ... Surface Mounting Frame The heater is intended to be controlled by a single pole wall mounted thermostat ordered separately The heater may be wired with standard building wire 60 C See Fan Delay Notice Above Refer to specification chart see pg 4 for correct supply voltage and wire size NOTE The optimum mounting height for this heater is 8 2440mm from floor to bottom of back box In any case do not ...

Page 3: ...ent and fan blade Do not use water or any cleaners to clean heater components 4 Replace grille 5 Wipe grille clean with a damp cloth DO NOT use waxes or any clean ers that leave a residue since these may discolor during heater oper ation 6 Turn the main line switch on at the switch panel to restore power to heater The heater is now ready for another season of operation OPERATIONAL NOTICE Your heat...

Page 4: ...ailable from Marley Engineered Products THE ABOVE WARRANTIES ARE IN LIEU OF ALL OTHER WARRANTIES EXPRESSED OR IMPLIED AND ALL IMPLIED WARRANTIES OF MER CHANTABILITY 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 T...

Reviews: