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www.enviromaster.com
The Ductless Split System of Choice
DESCRIPTION
EMI’s corner mounted air handler (CNR) is revolution-
ary in its state-of-the-art design as a ductless evaporator
that can be mounted inconspicuously in the corner of most
any room. Using mounting holes on the unit that are set up
to align with any wall construction (including walls with non-
square corners), the CNR utilizes previously unused wall
space for effective high efficiency room conditioning with
whisper quiet operation.
The CNR is equipped with unit mounted infrared com-
patible controls and can easily be installed in small to mid-
size commercial or residential spaces by one person using
the supplied positioning bracket. Heat pump models pro-
vide up to a nominal 12,000 Btuh of cooling/heating and a
3KW electric heat option is available. Other design fea-
tures include dual supply airflow and versatility of tubing
and wiring access through multiple entrances on the unit.
OPTIONAL EQUIPMENT
• Integral condensate pump
• Hand held infrared controller
• Wall mounted thermostat control
• 3KW electric heat with automatic reset high tem-
perature cutout
• Temperature fuse link
• Top trim kit for finished look between unit and ceiling
• 24V transformer (see below)
ITEMS FOR CONSIDERATION
• EMI’s CNR evaporator requires 24V power for con-
trol operation. When matching the CNR with a non-
EMI condenser, a 24V transformer may need to be
added to the condenser.
• Ensure that the CNR interconnect tubing is within a
maximum allowable length of 100’ including, a maxi-
mum 35’ lift.
CORNER MOUNTED AIR HANDLER
(CNR)
UNIT MOUNTING
It is recommended that the CNR be mounted 3" from
the ceiling, allowing proper access to the components located
in the top of the unit. The CNR must be mounted plumb and
level to a vertically square surface to prevent unit vibration
and/or unwanted noise. It is recommended that the unit be
mounted directly to a smooth surface of sheetrock wallboard
or similar material. If mounting to a block wall, there should
be a smooth square backing between the unit and the block
surface to absorb any potential vibration.
IMPORTANT: If excessive noise or vibration is ex-
perienced from a unit mounted directly to a block
wall, the squareness of the wall should be checked
immediately.
With the CNR, tubing, electrical, and drain access may
be acquired through either the bottom left or right sides or
the top of the unit. Keep in mind when routing through the
top of the unit through a ceiling that there is a 2 ½” knockout
provided in the top panel for this access. If you are using
only the top tubing access it will be necessary to install a
condensate pump.
NOTE: An optional top trim kit is available for con-
cealing tubing and/or wiring run through the top of
the unit. In addition, this kit may be used to pro-
vide a finished look between the unit and the ceil-
ing. To effectively use the top trim kit, the CNR
must be mounted 3" from the ceiling.
Piping may be roughed in before wallboard or panels
are placed in new construction. PVC (3” or 4" I.D.) may be
used as a pipe chase.
After determining the best location for the unit, use the
right and left paper wall-mounting templates included with
this instruction manual for proper unit mounting. After ad-
hering the right and left templates to the wall at the proper
height (3" from ceiling), these templates will be used to center
mark and pre-drill necessary holes indicated on the tem-
plates. Once the holes are drilled, mark/cut holes for tub-
ing and electrical access and remove the templates from
the walls. The Installer will determine if wall anchors are
necessary.
Included with the CNR is a mounting hardware kit con-
sisting of two 5/16 x 4" lag screws/washers, six #12 x 1-1/4"
Phillips head screws/washers, and six #12 wall anchors.
Use two #12 x 1-1/4" Phillips head screws and wall anchors
to secure the positioning bracket in place on the wall ac-
cording to the proper hole location indicated on the tem-
plates. The positioning bracket is provided for temporarily
hanging the unit at the proper height. Use a ¼” drill for
drilling holes for the anchors supplied for sidewall and posi-
tioning bracket mounting. It is not necessary to use the
remaining wall anchors for sidewalls if mounting directly to
the wall studs.
