34
SYSTEM OPERATION
CONDENSATE DRAIN CONNECTION
Condensate Drain Connection
A 3/4” female NPT drain connection is supplied on the end
of the unit and bottom of the drain pan for condensate
piping. An external trap must be installed for proper
condensate drainage. Hand tighten drain fitting to the
drain connection.
STANDARD
SIDE DRAIN
DRAIN PLUG
(FACTORY-INSTALLED)
Drain Pan (Side View)
NOTE:
Trap should be deep enough to o
ff
set maximum
unit sta
�
c di
ff
erence. A minimum 4” trap is recommended.
Drain Plug
Roof Curb
See NOTE
Base Rail
Open Vent
2” Min
drain connection
Install condensate drain trap as shown. Use 3/4” drain line
and fittings or larger. Do not operate without trap.
Horizontal Drain
Drainage of condensate directly onto the roof may be
acceptable; 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.
Vertical Drain
To use the bottom drain connection, remove the drain plug
from the bottom connection and install it in the horizontal
connection.
Cleaning
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
WARNING
HIGH VOLTAGE!
To avoid personal injury or death due to
electrical shock, bond the frame of this
unit to the building electrical ground by
use of the grounding terminal provided
or other acceptable means. Disconnect all
power before servicing or installing this
unit.
Pre-Startup Instructions - General
CAUTION
To prevent property damage or personal injury, do not
start the unit until all necessary pre-checks and tests
have been performed.
Prior to the beginning of Startup, Adjustments, and Checks
procedures, the following steps should be completed in
the building.
WARNING
MOVING MACHINERY HAZARD!
To prevent possible personal injury or death, disconnect
power to the unit and padlock in the “OFF” position
before servicing fans.
CAUTION
To prevent property damage or personal injury, do not
start the unit until all necessary pre-checks and tests
have been performed.
This unit is equipped with an electronic ignition device to
automatically light the main burners. It also has a power
vent blower to exhaust combustion products.
On new installations, or if a major component has been
replaced, the operation of the unit must be checked.
Содержание DRG0361DL00001S
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