CAUTION - NOTICE TO RIGGERS
PRUDENCE - AViS AUX MANIPULATEUR
ACCESS PANELS MUST BE iN PLACE WHEN RIGGING.
PANNEAUX D'ACCES DOlT ETRE EN PLACE POUR MANIPULATION.
Use top skid as spreader bar. / Utiliser la palette du haut comme barre de repartition
j J"..... MiNiMUM HEIGHT: 36" (9!4.4 ram)
J HAUTEUR MINIMUM
DUCTS
SEE DETAIL A
VOIR DETAIL A J
UNIT HEIGHT
HAUTEUR D'UNITEJ"
DETAIL A
VOIR DIETAIL A
SEAL STRIP MUST BE IN BANDE SCELLANT BOIT ETRE
PLACE BEFORE PLACING EN PLACE AVANT DE PLACER
UNIT ON ROOF CURB L:U NtTE SUR LA BASE DE TOtT
50CY502286 2,0
CORNER WEIGHTS (SMALL CABINET)
24 30
Unit
Ib kg Ib kg Ib
Rigging 327 148 340 154 343
Weight
*For 460 Volt units add 14 Ib (6.35 kg) to the rigging weight.
NOTE: See dimensional drawing for corner weights.
36
Unit
kg
156 Rigging
Weight
Fig. 6 - Rigging Weights
CORNER WEIGHTS (LARGE CABINET)
42 48
Ib kg Ib kg
419 190 429 195
6O
Ib kg
454 206
A09051
When designing and installing ductwork, consider the following:
1. All units should have field-supplied filters or accessory
filter rack installed in the return-air side of the unit.
Recommended sizes for filters are shown in Table 1.
2. Avoid abrupt duct size increases and reductions. Abrupt
change in duct size adversely affects air performance.
IMPORTANT: Use flexible connectors between ductwork and
unit to prevent transmission of vibration. Use suitable gaskets to
ensure weather tight and airtight seal. When electric heat is
installed, use fireproof canvas (or similar heat resistant material)
connector between ductwork and unit discharge connection. If
flexible duct is used, insert a sheet metal sleeve inside duct. Heat
resistant duct connector (or sheet metal sleeve) must extend 24-im
(610 mm) from electric heater element.
3. Size ductwork for cooling air quantity (cfm). The minimum
air quantity for proper electric heater operation is listed in
Table 2. Heater limit switches may trip at air quantities
below those recommended.
4. Seal, insulate, and weatherproof all external ductwork. Seal,
insulate and cover with a vapor barrier all ductwork passing
through conditioned spaces. Follow latest Sheet Metal and
Air Conditioning Contractors National Association
(SMACNA) and Air Conditioning Contractors Association
(ACCA) minimum installation standards for residential
heating and air conditioning systems.
5. Secure all ducts to building structure. Flash, weatherproof,
and vibration-isolate duct openings in wall or roof
according to good construction practices.
Converting Horizontal Discharge Units to Downflow
(Vertical) Discharge Units
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal iniury
or death.
Before installing or servicing system, always turn off main
power to system and install lockout tag. There may be more
than one disconnect switch.
1. Open all electrical disconnects and install lockout tag before
starting any service work.
2. Remove horizontal (metal) ductcovers to access vertical
(downflow) discharge duct knockouts in unit basepan. (See
Fig. 7 0
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