Dimplex EUH-B Quick Manual page 2

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.
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
Heater is now ready for wiring
REMOVE SCREW,
EACH SIDE
FIGURE 2
SUPPLY ENTRY KNOCKOUTS