Dimplex EUH03B31T, EUH03B11T, EUH03B34CT, EUH03B41CT, EUH03B51CT Quick Manual

ELECTRIC UNIT HEATERS

MODEL EUH-B

Installation/ Start-up/ Maintenance

FOR HORIZONTAL OR VERTICAL AIRFLOW
PERMANENT OR SUPPLEMENTARY ELECTRIC FORCED AIR HEATING FROM THE SAME
VERSATILE UNIT

These heavy-duty heaters provide spot heating for hard to heat areas, or they can be used as the
primary
source of heat for areas not reached by an existing heating system.
The fan and motor are carefully matched to insure quiet, trouble-free operation and fan blades are precision
balanced before installation.
Heaters in all capacities (3, 5, 7-1/2, 10 or 12kw) have the same dimensions, and use the same mounting
brackets. All components and controls, including thermostat, transformers, relays, and switches are
enclosed inside the case. Wiring is simple and all heaters can operate from a single power source.

1. HEATER LOCATION: Unit heaters should be located along outside walls to provide perimeter air
circulation. The discharge air should wipe the walls without blowing directly on them. (Figure 1)
a. Small rooms - can be heated by one or two units. Locate the unit heater(s) to provide circular air
movement within the space.
b. Large rooms - requiring multiple unit installations. Units should be located so that the discharge air from
one unit supports the discharge from another unit and provides a circular air movement.
c. Remote thermostats - should be located on interior walls or posts away from heat sources, cold drafts,
and away from heater discharge streams.

2. MOUNTING UNIT HEATER(S): Heater should be mounted a minimum of ten (10) inches from walls
and six (6) feet above fl oor (8 feet for vertical air fl ow) with the discharge parallel to or away from wall.
(See Table A for recommended mounting heights)
a. MOUNTING BRACKET - The heater is shipped with a mounting bracket packed separately in the carton.
Secure the bracket to threaded attachment points on the sides of the heater with two bolts (provided).
Select desired angle of tilt (Horizontal, 15, 30, 45, 60, 75, or Vertical), remove corresponding knockouts
on sides of the heater, then screw the remaining two bolts into the threaded holes in the bracket so that
the bolts pass through the knockout holes. The unit is now ready for hanging.
b. CEILING MOUNTING - Fasten the heater securely to the ceiling using the center hole in the bracket
or the two holes on either side of the center hole. The Unit mounting bracket may be attached directly to
the ceiling.
c.WALL MOUNTING - The heater may also be mounted to a wall with accessory wall bracket,
(Part # EUHWB). The wall bracket attaches to the center hole of the unit mounting bracket.

EXPOSED OUTSIDE WALL

SMALL ROOM LARGE ROOM

FIGURE 1

EXPOSED OUTSIDE WALL

WALL

EXPOSED OUTSIDE

1-888-346-7539

7202450001R05

Heater is now ready for wiring

3. WIRING:

a. Connect the heater only to the voltage and frequency specifi ed on the nameplate.
b. All wiring to be in accordance with local and national electric codes.
c. Remove two screws securing the access door (See Figure 2) and swing the door down to expose the
wiring and control compartment.
d. Three knockouts are provided at the back of the heater for power and control wiring. (See Figure 2)
e. Rough-in branch circuit wiring to the heater using wire rated for 75 degrees C. Wire heater supply
according to diagram attached to the access door.

REMOVE SCREW,
EACH SIDE

FIGURE 2

SUPPLY ENTRY KNOCKOUTS

4. CONTROLS: Factory installed.
a. Fan delay - The heater is equipped with a fan delay delay control. The fan will remain on for a few
moments after the elements are de-energized.
b. Automatic High Limit - Each heater is equipped with automatic reset thermal cutouts located above the
elements. Should these safety switches operate, they will automatically reset once the element reaches
a safe operating temperature, however the cause of the high limit condition should be determined and
corrected to insure satisfactory operation.
c.Thermostat - All heaters are equipped with a hydraulic type thermostat which has a nominal operating
range of 40F (low) to 100F (high).

5. OPTIONAL CONTROLS: Field installed.
a. Remote line voltage thermostat - An optional remote line voltage thermostat may be used to control
the unit. Field connections may simply be connected to the control terminal block located in the wiring
compartment in accordance with with the wiring diagram attached to the access door.

CAUTION - Disconnect the built-in thermostat

b. Remote Low voltage thermostat with relay - An optional low voltage thermostat/relay kit may be used
to control the unit (Catalogue #EUAR11, 120V primary; EUAR21, 208V primary; EUAR31, 240V primary;
EUAR41, 277V primary). The relay is installed through the hole provided in the back left corner of the
blower deck. Power connections are made to the control terminal block located in the wiring compartment
in accordance with the wiring diagram attached to the access door. A knockout is provided on the left side
of the heater for the 24 volt thermostat control wiring. It is important that the plastic insulation bushing be
installed into the knockout hole before running low voltage control wiring. The thermostat is installed and
wired in accordance with the instructions packaged with the kit.

CAUTION - Disconnect the built-in thermostat