Unit And Component Identification - Carrier Aero 39MN Series Installation, Start-Up And Service Instructions Manual

WARNING
DO NOT USE TORCH to remove any component. System
contains oil and refrigerant under pressure.
To remove a component, wear protective gloves and gog-
gles and proceed as follows:
a. Shut off electrical power to unit.
b. Recover refrigerant to relieve all pressure from sys-
tem using both high-pressure and low pressure ports.
c. Traces of vapor should be displaced with nitrogen
and the work area should be well ventilated. Refrig-
erant in contact with an open flame produces toxic
gases.
d. Cut component connection tubing with tubing cutter
and remove component from unit. Use a pan to catch
any oil that may come out of the lines and as a gage
for how much oil to add to the system.
e. Carefully unsweat remaining tubing stubs when nec-
essary. Oil can ignite when exposed to torch flame.
Failure to follow these procedures may result in personal
injury or death.
WARNING
1. Improper installation, adjustment, alteration, service,
or maintenance can cause property damage, personal
injury, or loss of life. Refer to the User's Information
Manual provided with this unit for more details.
2. Do not store or use gasoline or other flammable va-
pors and liquids in the vicinity of this or any other
appliance.
What to do if you smell gas:
1. DO NOT try to light any appliance.
2. DO NOT touch any electrical switch, or use any
phone in your building.
3. IMMEDIATELY call your gas supplier from a neigh-
bor's phone. Follow the gas supplier's instructions.
If you cannot reach your gas supplier, call the fire
department.
IMPORTANT: The installation of air-handling units and
all associated components, parts, and accessories which
make up the installation and subsequent maintenance shall
be in accordance with the regulations of ALL authorities
having jurisdiction and MUST conform to all applicable
codes. It is the responsibility of the installing contractor to
determine and comply with ALL applicable codes and
regulations. Field-supplied motors should be Underwriters
Laboratories (UL) or Canadian Standards Association
(CSA) approved. Field wiring must comply with National
Electrical Code (NEC) and all local requirements.

UNIT AND COMPONENT IDENTIFICATION

The 39M air handler comes in two basic configurations;
horizontal and vertical. Using appropriate sections, it is
possible to design many unit variations, including blow-thru
units and plenum fan units with multiple discharges. See Fig. 1
and 2 for nameplate label identification. Figures 3-11 show an
example of the model number used for 39M unit sections and
components. Each unit's model number is listed on a label af-
fixed to the fan section. Section and major component level
part numbers are listed and affixed to each individual compo-
nent section.
For further information on unit and component identifica-
tion contact your Carrier representative for the AHUBuilder
program. Refer to the 39M Product Data catalog for more in-
formation on individual component sections. Refer to Fig. 12-
14 and Tables 1-25 for component data.
NOTE: Unit nameplate label is found on each component section
shipped separately.
Fig. 1 — 39MN Unit Nameplate Label
NOTE: Each component section has a section nameplate label.
Fig. 2 — 39MW Unit Nameplate Label
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