Reznor EHA Unit Installation Manual - Manuel (Page 2)

RECESS MOUNTING:
1- Heater must be used with recess box.
2- Never install warm air outlet of heater less than
10 in. (250 mm) from fl oor or adjacent wall.
3- Provide a wall opening as:
Depth : 4 5/16 in. (109 mm)
Height : 19 7/8 in. (506 mm)
Length : - Single unit : 14 7/16 in. (368 mm)
- Double unit : 30 3/16 in. (767 mm)
- Triple unit : 46 5/8 in. (1185 mm)
4- Remove the appropriate knock-out from the recess box
for the electrical supply.
5- Attach fi rmly the recess box using provided screws.
Make sure that the edge on each side of the recess box
lean on the drywall and not on the structural parts of the
wall. See marking on the sides of the recess box.
6- Install the heater to the recess box and be sure that the
heater is attach fi rmly with four (4) provided screws.
7- Connect the heater leads to the supply leads according
to national and local codes. See wiring diagram in the
heater.
8- Make sure the fan rotates freely and that there is no
foreign object in the heater.
9- Install the front cover using the provided screws.
IMPORTANT: Make sure that the part of the front cover
without louver is at the top to insure proper air fl ow.
10- To test the heater temporarily, set thermostat at
maximum temperature.
IMPORTANT
1- Do not obstruct front of heater
for at least 48 in. (1220 mm).
2- Any remote thermostat or relay must be connected
to the heater control terminal block.
3- Do not interrupt power supply to control this heater.
CAUTION:
High temperature, risk of fi re, keep electrical cords, drapery,
furnishings, and other combustibles at least 36 in. (915 mm)
from the front of the heater. To reduce the risk of fi re, do not
store or use gasoline or other fl ammable vapors and liquids in
the vicinity of the heater.
SURFACE MOUNTING:
Model 4 in. (102 mm)
1- The surface box must be used with recess box.
2- Never install warm air outlet of heater less than
10 in. (250 mm) from fl oor or adjacent wall.
3- Locate the power supply leads behind the planned location
of the heater (surface box).
4- Mount the surface box securely to the wall with provided
screws. See illustration to install properly.
5- Follow instructions 4 to 10 as above for recess mounting.
SEMI-RECESSED MOUNTING:
Model 1 in. (25 mm) and Model 2 in. (51 mm)
1- The surface box must be used with recess box.
2- Never install warm air outlet of heater less than
10 in. (250 mm) from fl oor or adjacent wall.
3- Provide a wall opening as:
Depth for 1 in. model : 3 5/16 in. (84 mm)
Depth for 2 in. model : 2 5/16 in. (59 mm)
Height : 19 7/8 in. (506 mm)
Length : - Single unit : 14 7/16 in. (368 mm)
- Double unit : 30 3/16 in. (767 mm)
- Triple unit : 46 5/8 in. (1185 mm)
4- Mount the surface box securely to the wall with provided
screws. See illustration to install properly.
5- Follow instructions 4 to 10 as above for recess mounting.
Surface mounting and
Semi-recessed mounting
Single unit Surface mounting and
Semi-recessed mounting
Triple unit Surface mounting and
Semi-recessed mounting
Double unit
INSTALLATION INSTRUCTIONS