Keep in mind, depending on the model you purchase, some ACE or ACHT units have less or more cubic volume inside.
Units with th
e
2000
BTU A
/C Unit, and units with the
500
Watt Heater (aka: T-20s) - with an internal heat load of
200
watts:
Mier’s “
•
ACHT
” and “
ACE
” models which come with a 2000 BTU A/C Unit, when installed and functioning properly, will maintain an internal
preset temperature of (+/- 3
0
F). For example the BW-124ACE (enclosure size 24”W x 24”H x 12”D) is capable of maintaining an 80
0
F internal
temperature (+/- 3
0
F) up to an outside temperature of 135
0
F.
Mier’s “
•
ACHT
” models which come with a 500W Heater integrated into the A/C unit, when installed and functioning properly, will maintain an
internal temperature (+/- 3
0
F). For example the BW-124ACHT (enclosure size 24”x24”x12”) maintains a preset temperature (+/- 3
0
F) up to a
maximum of up to 60
0
F with an outside temperature of -20
0
F. The BW-136ACHT (enclosure size 24”x36”x12”) maintains a preset temperature
(+/- 3
0
F) up to a maximum of up to 60
0
F with an outside temperature of -10
0
F.
Units with t
he
800
BTU A/C U
nit, and units with the
150
Watt Heater (aka: T-15s) - with an internal heat load of
100
watts:
Mier’s “
•
8ACHT
” and “
8ACE
” models which come with the smaller 800 BTU A/C Unit, when installed and functioning properly, will maintain
an internal preset temperature (+/- 3
0
F). For example the BW-1248ACE (enclosure size 24”x24”x8”) is capable of maintaining an 80
0
F internal
temperature (+/- 3
0
F) up to an outside temperature of 125
0
F.
Mier’s “
•
8ACHT
” models which come with a 150W Heater integrated into the A/C unit, when installed and functioning properly, will maintain an
internal temperature (+/- 3
0
F). For example the BW-1248ACHT (enclosure size 24”x24”x8”) maintains a preset temperature (+/- 3
0
F) 40
0
F inter-
nal temperature down to an outside temperature of -20
0
F.
Mier’s Temperature Controlled Enclosures are completely sealed with no knockouts or holes in the enclosure other than those for
mounting the AC unit. When installed correctly with the AC unit
they meet NEMA 4 standards and may be used either indoors or outdoors,
and provide a degree of protection to personnel against incidental contact with the enclosed equipment, and they provide a degree of protection for
the equipment within from windblown dust, splashing water, hose-directed water, rain, sleet, snow, ice, & dirt.
• This enclosure is properly installed when the top & bottom mounting ears are flush against the wall or mounting struts, and held securely with
appropriate bolts, and the hinges face to the
left
after the enclosure has been mounted
• Watertight fittings must be used on all openings created by the installer. The door-gasket provided around the opening of the enclosure must remain
in place and never be removed.
• The AC/Heater unit must be mounted with the provided gaskets installed between the AC/Heater unit and the enclosure, using the appropriate pre-
cut holes on the enclosure, and strictly following the unit’s OEM installation guidelines. Once attached, these AC/Heater gaskets must also remain in
place and never be removed
• The tamper switch should be mounted on the studs at the top of the enclosure
•
If you have ANY questions regarding the installation of these products, call Mier Products at 1-800-473-0213
Mier Products’ Temperature Controlled Enclosures
Installation and Warranty Information
Power:
Once installed correctly, the power cords for the AC unit and the heater are within the enclosure. Thus, the installer/electrician is responsible for get-
ting power inside the enclosure.
It is up to the installer to cut,
and properly install with water-tight fittings
, any holes needed to run power within or
run cables out of these enclosures.
Both the AC unit and the heater get their
power
from
AC 115V, 60hz
. Mier recommends the installer/electrician run power into the box
via flexible or
rigid conduit, with water-tight fittings, to outlet boxes mounted within the enclosure
.
Wiring:
use #12 AWG standard house wiring to a quad outlet box
Connection:
the AC/Heater unit has a standard 3-prong NEMA 5-15P plug and the tamper switch connects to the standard low-voltage alarm circuit.
URGENT!
The AC UNIT which
accompanies this enclosure
MUST BE KEPT IN THE
UPRIGHT POSITION
AT ALL TIMES,
and handled with the utmost care
during shipping, storage, installation.
The AC UNIT must be mounted to the
enclosure using the pre-cut holes and
supplied gaskets.
The AC UNIT must be
installed in the upright position, and
following OEM instructions in order to
maintain NEMA rating.
ATTENTION:
WATERTIGHT FITTINGS MUST
BE USED ON ALL OPENINGS!
When installed properly per OEM’s specs:
* AC Unit is UL/cUL 50 Type 3R, 4, 12,
CE UL file SA6453
* Enclosure meets NEMA 4 Standards
* Paint meets NEMA 4, UL-1332
* Gasket meets NEMA 4, UL-50,
UL-844, & FMVSS302
Flammability & Code Compliance
* Tamper Switch is UL Pending
*
DO NOT MOUNT
enclosures equipped with air-conditioners on walls of apartments, offices, condos or homes. Typical A/C vibration can
become a nuisance to those who live/work on the other side of the wall.
* If your installation is in warmer or cooler exterior environments, of if your internal heat load is greater, or if you are installing in a coastal or
highly corrosive area call Mier Products for advice on special order units
* Mier recommends only installing units with window in shaded areas; as interior temps of these units reach 20
0
higher in direct sunlight than units
without windows
* Remember to schedule maintenance of
Air-Filters which MUST BE CLEANED PERIODICALLY
* The unit with the
MOST COOLING AND HEATING PER CUBIC INCH
, and most highly recommended, is the
“BW-124ACHT”
Form# MP0100802-3/16
For ON-SITE inspection & repair of A/C units, or A/C Tech Support, call McLean Customer Service at 763-422-2277
In the case of Temperature Controlled Enclosures, units needing repair are repaired onsite and should not be removed. In the rare case these units
would be returned, the returnee
must first obtain an RMA#, follow the strict shipping and packaging guidelines
. The enclosures and AC Units must be
shipped on their own skid, and within the original packaging. REMEMBER: The AC Unit must be kept upright at all times.
800-473-0213 | [email protected] | www.mierproducts.com
