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 goggles
and proceed as follows:
a. Shut off electrical power to unit.
a. Recover refrigerant to relieve all pressure from system
using both high-pressure and low pressure ports.
b. Traces of vapor should be displaced with nitrogen and
the work area should be well ventilated. Refrigerant in
contact with an open flame produces toxic gases.
c. 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.
d. Carefully unsweat remaining tubing stubs when neces-
sary. 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 vapors
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.
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; horizon-
tal 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 la-
bel 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 affixed to the fan section. Sec-
tion and major component level part numbers are listed and af-
fixed to each individual component section.
For further information on unit and component identification con-
tact your Carrier representative for the AHUBuilder
Refer to the 39M Product Data catalog for more information on
individual component sections. Refer to Fig. 12-15 and Tables 1-
24 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
program.
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