Electrical Requirements
NOTE
: Use copper conductors only.
•
All field wiring must be done in accordance with
National Electrical Code, applicable requirements of
UL and local codes, where applicable.
•
Electrical wiring, disconnect means and over-current
protection are to be supplied by the installer. Refer to
the MX Series Air Handler rating plate for maximum
over-current protection, minimum circuit ampacity, as
well as operating voltage.
•
The power supply must be sized and protected
according to the specifications supplied on the product.
•
This MX Series Air Handler is factory-configured for
either 240 Volts or 120 Volts, single phase, 60 cycles.
For 208-volt applications, see “208 Volt Conversion” in
the “Make Electrical Connections” section.
•
Refer to the instructions provided with the accessory
for proper installation.
Ductwork Requirements
•
Install the conditioned air plenum, ducts and air filters
(not provided) in accordance with NFPA 90B Standard
for the installation of Warm Air Heating and Air-
Conditioning Systems (latest edition).
•
The MX Series Air Handler is provided with flanges for
the connection of the plenum and ducts.
•
Air filters must be listed as Class 2 furnace air filters
.
•
Supply and return ductwork must be adequately sized
to meet the system’s air requirements and static
pressure capabilities. Ductwork should be insulated
with a minimum of 1” thick insulation with a vapor
barrier in conditioned areas or 2” minimum in
unconditioned areas.
•
Supply plenum should be the same size as the flanged
opening provided around the blower outlet and should
extend ideally at least 3 ft. from the MX Series Air
Handler before turning or branching off plenum into
duct runs. The plenum forms an extension of the
blower housing and minimizes air expansion losses
from the blower.
Installation Instructions
Inspect Shipment
The blower section is completely factory assembled, and all
components are performance tested. Each unit consists of a
blower assembly and controls, in an insulated galvanized steel
factory finished enclosure. Knockouts are provided for electrical
wiring entrance.
1. Check the unit rating plate to confirm
specifications are as ordered.
2. Upon receipt of equipment, thoroughly inspect it
for possible shipping damage. Closely examine
the unit inside the carton if the carton is damaged.
3. If damage is found, it should be noted on the
carrier’s freight bill. Damage claims should be filed
with carrier immediately. Claims of shortages
should be filed with the seller within 5 days.
NOTE:
If any damages are discovered and reported to the
carrier, do not install the unit because your claim may be
denied.
Blower and Coil Assembly
Note:
Read and follow coil installation instructions to
ensure proper installation of refrigerant lines
and drain connections.
Upflow Configuration
1. Ensure the blower section matches the coil being
used.
2. The bottom of the blower section contains a ½”
gasket. Check to make sure gasket is attached to the
bottom of the blower section.
3. Position the blower section over the coil opening or
under the coil depending on your desired
configuration.
4. The MX is designed to fit perfectly with the ADP “C”
depth (20.5”) coil. If “E” depth is used, modify the
duct flange as follows: with the front of the MX and
coil aligned, snip the rear coil flange on each side so
that the MX will sit level on the coil (similar to the
pictures shown in the section “Horizontal
Configuration With Dedicated Horizontal A (HD) Coil.”
5
Summary of Contents for MX Series
Page 20: ......
