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2
Supply Entry
Knockouts
Remove
screw, from
each side
Figure 2
WARNING:
This heater must be properly installed before
it is used.
CONTROLS
(Factory installed)
•
Fan delay
- The heater is equipped with a fan delay control.
The fan will remain on for a few moments after the elements
are de-energized.
•
Automatic High Limit
- Each heater is equipped with auto-
matic reset thermal cutouts located above the elements.
Should these safety switches operate, they will automa-
tically 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.
•
Thermostat
- All heaters are equipped with a hydraulic type
thermostat which has a nominal operating range of 40°F
(5°C) (low) to 100°F (38°F) (high).
OPTIONAL CONTROLS
(Field installed)
•
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 termi-
nal block located in the wiring compartment in accordance
with with the wiring diagram attached to the access door.
CAUTION: Disconnect the built-in thermostat
•
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 compart-
ment 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 impor-
tant 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
•
Fan only Switch
- An optional “Fan only” switch kit (Cata-
logue EUAF2) is available for field installation in the unit.
The fan switch is mounted in the space provided adjacent to
the built-in thermostat located at the front of the unit. Field
connections are made at the control terminal block in accor-
dance with the unit wiring diagram.
START-UP:
1.
Before the unit is energized, the discharge louvers should
be be adjusted for desired air deflection. Louvers may be
adjusted for either horizontal or vertical air deflection by
rotating the louvre frame. (See figure 3)
2. Check to see that all controls and optional accessories are
operating properly.
Operation
Figure 3
tric codes.
3.
Remove two screws securing the access door (See Figu-
re 2) and swing the door down to expose the wiring and
control compartment.
4.
Three knockouts are provided at the back of the heater for
power and control wiring. (See Figure 2)
5.
Rough-in branch circuit wiring to the heater using wire
rated for 167°F (75°C). Wire heater supply according to
diagram attached to the access door.
Wiring
!
NOTE:
This is a sample wiring diagram for the wiring diagram for your
specific model see the wiring diagram located on the inner panel.
