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practices, which may result in minor personal injury or
product and property damage. NOTE is used to highlight
suggestions which will result in enhanced installation,
reliability, or operation.
ELECTRICAL SHOCK HAZARD
Failure to follow this warning will result in personal injury
or death.
Before performing service or maintenance operations
on unit, turn off main power switch to unit and install
lock(s) and lockout tag(s). Ensure electrical service to
rooftop unit agrees with voltage and amperage listed on
the unit rating plate. Unit may have more than one
power switch.
WARNING
UNIT OPERATION AND SAFETY HAZARD
Failure to follow this warning could cause personal
injury, death and/or equipment damage.
R-410A refrigerant systems operate at higher pressures
than standard R-22 systems. Do not use R-22 service
equipment or components on R-410A refrigerant
equipment.
WARNING
PERSONAL INJURY AND ENVIRONMENTAL
HAZARD
Failure to follow this warning could cause personal injury
or death.
Relieve pressure and recover all refrigerant before
system repair or final unit disposal.
Wear safety glasses and gloves when handling
refrigerants. Keep torches and other ignition sources
away from refrigerants and oils.
CAUTION
CUT HAZARD
Failure to follow this caution may result in personal
injury.
Sheet metal parts may have sharp edges or burrs. Use
care and wear appropriate protective clothing, safety
glasses, and gloves when handling parts and servicing
units.
CAUTION
UNIT OPERATION HAZARD
Failure to follow this caution could cause equipment
damage.
Ensure voltage listed on unit data plate agrees with
electrical supply provided for the unit.
2
DANGER
Specifications subject to change without notice.
PRE-INSTALLATION
1. The power supply (v, ph, and Hz) must correspond to
that specified on unit rating plate.
2. The electrical supply provided by the utility must be suf-
ficient to handle load imposed by this unit.
3. Refer to Installation, General section (page 2) and
Fig. 1 for locations of electrical inlets, condensate drain,
duct connections, and required clearances before set-
ting unit in place.
4. This installation must conform with local building codes
and with the NEC (National Electrical Code) or ANSI
(American National Standards Institute)/NFPA (National
Fire Protection Association) latest revision. Refer to
provincial and local plumbing or wastewater codes and
other applicable local codes.
Moving and Storage
To transfer unit from truck to storage site, use a fork truck.
Do not stack units more than 2 high during storage. If unit is
to be stored for more than 2 weeks before installation,
choose a level, dry storage site free from vibration. Do not
remove plastic wrap or skid from unit until final installation.
Rigging
All FAS/FHS Series units can be rigged by using the ship-
ping skid. Units are shipped fully assembled. Do not remove
shipping skids or protective covering until unit is ready for fi-
nal placement; damage to bottom panels can result. Use
slings and spreader bars as applicable to lift unit.
INSTALLATION
General
Allow the following clearances for service access and
airflow:
•
Rear: 2-1/2 ft (762 mm) [2-1/2 ft (762 mm) with elec-
tric heat accessory]
•
Front: 2-1/2 ft (762 mm)
•
Right Side: 3-1/2 ft (1067 mm)
•
Left Side: 2-1/2 ft (762 mm)
For units equipped with an economizer, refer to the acces-
sory installation instructions for additional clearance require-
ments. Be sure floor, wall, or ceiling can support unit weight
(Tables 1-4). See Fig. 1 for dimensions.
Uncrating
Move unit as near as possible to final location before remov-
ing shipping skid.
Remove metal banding, top skid, and plastic wrap. Examine
unit for shipping damage. If shipping damage is evident, file
claim with transportation agency. Remove base skid just pri-
or to actual installation.
Check nameplate information against available power sup-
ply and model number description in Fig. 2.
NOTE: Be sure to remove the Styrofoam
from the thermostatic expansion valve (TXV). Verify that it
has been removed. (See Fig. 3.)
Accessories
Refer to instructions shipped with each accessory for specif-
ic information.
1. Third-party trademarks and logos are the property of their respective
owners.
™1
shipping pad
FASFHS150-180-01SI
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