Daikin AWSF18SU16 Series Manuale di istruzioni per l'installazione - Pagina 5
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Units are equipped with both a bottom primary and second-
ary drain. Both drains must be trapped, unless emergency
condensate switch is install in the secondary drain. Failure
to install a trap could result in condensation overflowing
the drain pan resulting in substantial water damage to the
nearby area.
The connectors required are 3/4" NPT male, either PVC
or metal pipe, CPVC piping is not approved, and should
be hand tightened to a torque of no more than 37 in-lbs. to
prevent damage to the drain pan connection.
To prevent potential sweating and dripping on to finished
space, it may be necessary to insulate the condensate
drain line located inside the building. Use Armaflex® or
similar material.
NOTE: If you intend to install this unit with a "WAD"
door it must be mounted 1/4" behind front edge of
stud.
7 ELECTRICAL AND CONTROL WIRING
IMPORTANT: All routing of electrical wiring must be
made through provided electrical knockouts. Do not
cut, puncture or alter the cabinet for electrical wiring.
HIGH VOLTAGE
TO AVOID THE RISK OF FIRE OR EQUIPMENT
DAMAGE, USE ONLY COPPER CONDUCTORS.
DISCONNECT ALL POWER BEFORE SERVICING
OR INSTALLING THIS UNIT. MULTIPLE POWER
SOURCES MAYBE PRESENT. THE ELECTRICAL
POWER TO THIS UNIT MUST BE IN THE OFF
POSITION AND ALL POWER SUPPLIES DIS-
CONNECTED.
FAILURE TO DO SO MAY CAUSE PROPERTY
DAMAGE, PERSONAL INJURY OR DEATH.
THE UNIT MUST HAVE AN UNINTERRUPTED, UNBROKEN
ELECTRICAL GROUND TO MINIMIZE THE POSSIBILITY OF
PERSONAL INJURY IF AN ELECTRICAL FAULT SHOULD OC-
CUR. THE ELECTRICAL GROUND CIRCUIT MAY CONSIST OF
AN APPROPRIATELY SIZED ELECTRICAL WIRE CONNECT-
ING THE GROUND LUG IN THE UNIT AND CONTROL BOX
WIRE TO THE BUILDING'S ELECTRICAL SERVICE PANEL.
OTHER METHODS OF GROUNDING ARE PERMITTED IF PER-
FORMED IN ACCORDANCE WITH THE "NATIONAL ELECTRIC
CODE" (NEC)/"AMERICAN NATIONAL STANDARDS INSTI-
TUTE" (ANSI)/"NATIONAL FIRE PROTECTION ASSOCIATION"
(NFPA) 70 AND LOCAL/STATE CODES.
IN CANADA, ELECTRICAL GROUNDING IS TO BE IN ACCOR-
DANCE WITH THE CANADIAN ELECTRIC CODE CSA C22.1.
FAILURE TO OBSERVE THIS WARNING CAN RESULT IN
ELECTRICAL SHOCK THAT CAN CAUSE PERSONAL INJURY
OR DEATH.
WARNING
WARNING
7.1 Building Electrical Service Inspection
This unit is designed for single-phase electrical supply.
NOTE: DO NOT OPERATE ON A THREE-PHASE
POWER SUPPLY.
Measure the power supply to the unit. The supply voltage
must be in agreement with the unit name plate power
requirements and within the range shown in Table 1.
Nominal Input
Minimum Voltage
208/230
ELECTRICAL VOLTAGE
7.2 Wire Sizing
Wire size is important to the operation of your equipment.
Use the following checklist when selecting the appropriate
wire size for the unit.
• Wire used must cary the Minimum circuit Ampacity
(MCA) listed on the unit's Series and Rating Plate.
• Refer to the NEC (USA) or CSA (Canada) for wire
sizing. The unit MCA for the air handler and the
optional electric heat kit can be found on the unit
Series and Rating Plate.
• Wire must be sized to allow no more than a 2% voltage
drop from the building breaker/fuse panel to the unit.
• Wires with different insulation temperature rating have
varying ampacities - be sure to check the temperature
rating used.
Refer to the latest edition of the National Electric Code or in
Canada the Canadian Electric Code when determining the
correct wire size.
7.3 Maximum Overcurrent Protection (MOP)
Every installation must include an NEC (USA) or CEC
(Canada) approved overcurrent protection device. Also,
check with local or state codes for any special regional
requirements.
Protection can be in the form of fusing or HACR style
circuit breakers. The Series and Rating Plate can be used
as a guide for selecting the MAXIMUM overcurrent
device.
NOTE: Fuses or circuit breakers are to be sized larger
than the equipment MCA but not to exceed the MOP.
IMPORTANT NOTE: Torch heat required to braze tubes
of various sizes is proportional to the size of the tube.
Tubes of smaller size require less heat to bring the
tube to brazing temperature before adding brazing
alloy. Applying too much heat to any tube can melt the
tube. Service personnel must use the appropriate heat
level for the size of the tube being brazed.
5
Maximum Voltage
187
253
Table1