Reznor EHC Unit Installation Manual - Manuel (Page 2)

Semi-recessed mounting
Single unit
Model 1 in. (25 mm)
INSTALLATION
INSTRUCTIONS
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 front cover of 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: To insure that the front cover is not upside down,
check if the logo is in the correct orientation.
10- To test the heater temporarily, set thermostat at maximum temperature.
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.
IMPORTANT: For a single surface box, there are two bracktets
fi xed at the top and bottom. Unfold the metal hooks to remove the
brackets. Insert brackets in the surface box before continuing the
installation. 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- Locate the power supply leads behind the planned location of the
heater (surface box).
5- Mount the surface box securely to the wall with provided screws.
IMPORTANT: For a single surface box, model 2 in. (51 mm) there are
two bracktets fi xed at the top and bottom. Unfold the metal hooks to
remove the brackets. Insert brackets in the surface box before continuing
the installation. See illustration to install properly.
6- Follow instructions 4 to 10 as above for recess mounting.
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 and Semi-recessed mounting
Single unit
Model 4 in. (102 mm)
Model 2 in. (51 mm)
Surface mounting and Semi-recessed mounting
Double unit
All models
Surface mounting and Semi-recessed mounting
Triple unit
All models