9
Drain Pan (Side View)
Drain Connection
Install condensate drain trap as shown. Use 3/4” drain line
and fittings or larger. Do not operate without trap.
h
OrizOntal
d
rain
Drainage of condensate directly onto the roof may be ac-
ceptable; refer to local code. It is recommended that a small
drip pad of either stone, mortar, wood or metal be provided
to prevent any possible damage to the roof.
C
leaning
Due to the fact that drain pans in any air conditioning unit
will have some moisture in them, algae and fungus will grow
due to airborne bacteria and spores. Periodic cleaning is
necessary to prevent this build-up from plugging the drain.
STARTUP, ADJUSTMENTS, AND CHECKS
P
re
-s
tartuP
i
nstruCtiOns
STANDARD
SIDE DRAIN
DRAIN PLUG
(FACTORY-INSTALLED)
NOTE:
Trap should be deep enough to offset maximum
unit static difference. A minimum 4” trap is recommended.
Drain Plug
Roof Curb
See NOTE
Base Rail
Open Vent
2” Min
HIGH VOLTAGE!
OND
THE
FRAME
OF
THIS
UNIT
TO
THE
BUILDING
ELECTRICAL
GROUND
BY
USE
OF
THE
GROUNDING
TERMINAL
PROVIDED
OR
OTHER
ACCEPTABLE
MEANS
. D
ISCONNECT
ALL
POWER
BEFORE
SERVICING
OR
INSTALLING
THIS
UNIT
.
T
O
AVOID
PERSONAL
INJURY
OR
DEATH
DUE
TO
ELECTRICAL
SHOCK
,
B
WARNING
T
O
PREVENT
PROPERTY
DAMAGE
OR
PERSONAL
INJURY
, D
O
NOT
START
THE
UNIT
UNTIL
ALL
NECESSARY
PRE
-
CHECKS
AND
TESTS
HAVE
BEEN
PERFORMED
.
CAUTION
Prior to the beginning of Startup, Adjustments, and Checks
procedures, the following steps should be completed in the
building.
h
eating
s
tartuP
On new installations, or if a major component has been re-
placed, the operation of the unit must be checked.
Check unit operation as outlined in the following instructions.
If any sparking, odors, or unusual sounds are encountered,
shut off electrical power and recheck for wiring errors, or ob-
structions in or near the blower motors.
Duct covers must be
removed before operating unit.
The Startup, Adjustments, and Checks procedure provides
a step-by-step sequence which, if followed, will assure the
proper startup of the equipment in the minimum amount of
time. Air balancing of duct system is not considered part of
this procedure. However, it is an important phase of any air
conditioning system startup and should be performed upon
completion of the Startup, Adjustments, and Checks proce-
dure. The Startup, Adjustments, and Checks procedure at
outside ambients below 55°F should be limited to a readiness
check of the refrigeration system with the required final check
and calibration left to be completed when the outside ambient
rises above 55°F.
t
emPOrary
h
eating
O
r
C
OOling
If the unit is to be used for temporary heating or cooling, a
“Startup, Adjustments, and Checks” must first be performed in
accordance with this manual. Damage or repairs due to fail-
ure to comply with these requirements are not covered under
the warranty. After the machines are used for temporary heat-
ing or cooling, inspect the coils, fans, and motors for unaccept-
able levels of construction dust and dirt and install new filters.
C
OntraCtOr
r
esPOnsibility
The installing contractor must be certain that:
• All supply and return air ductwork is in place, properly
sealed, and corresponds with installation instructions.
• All thermostats are mounted and wired in accordance with
installation instructions.
• All electric power, all gas, hot water or steam line connec-
tions, and the condensate drain installation have been
made to each unit on the job. These main supply lines must
be functional and capable of operating all units simultane-
ously.
• All filters are in place.
r
OOf
C
urb
i
nstallatiOn
C
heCk
Inspect the roof curb for correct installation. The unit and curb
assembly should be level. Inspect the flashing of the roof
mounting curb to the roof, especially at the corners, for good
workmanship. Also check for leaks around gaskets. Note any
deficiencies in a separate report and forward to the contractor.
MOVING MACHINERY HAZARD!
T
O
PREVENT
POSSIBLE
PERSONAL
INJURY
OR
DEATH
,
DISCONNECT
POWER
TO
THE
UNIT
AND
PADLOCK
IN
THE
“OFF”
POSITION
BEFORE
SERVICNG
FANS
.
WARNING
