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FIGURE 1
PH4E PACKAGED HEAT PUMP
SAFETY CONSIDERATIONS
Installation and servicing of this equipment can be hazardous
due to mechanical and electrical components. Only trained and
qualified personnel should install, repair, or service this
equipment.
Untrained personnel can perform basic maintenance functions
such as cleaning and replacing air filters. All other operations
must be performed by trained service personnel. When working
on this equipment, observe precautions in the literature, on tags,
and on labels attached to or shipped with the unit and other
safety precautions that may apply.
Follow all safety codes. Wear safety glasses, protective clothing,
and work gloves. Use quenching cloth for brazing operations.
Have a fire extinguisher available. Read these instructions
thoroughly and follow all warnings or cautions included in
literature and attached to the unit. Consult local building codes,
the current editions of the National Electrical Code (NEC) NFPA
70.
In Canada refer to the current editions of the Canadian Electrical
Code CSA C22.1.
Recognize safety information. This is the safety−alert symbol
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury. Understand
these signal words: DANGER, WARNING, and CAUTION.
These words are used with the safety−alert symbol. DANGER
identifies the most serious hazards which will result in severe
personal injury or death. WARNING signifies hazards which
could result in personal injury or death. CAUTION is used to
identify unsafe 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.
WARNING
!
ELECTRICAL SHOCK HAZARD
Failure to follow this warning could result in personal
injury 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. Turn off
accessory heater power switch if applicable.
2
!
CUT HAZARD
Failure to follow this caution may result in personal
injury.
When removing access panels (see FIGURE 18) or
performing maintenance functions inside your unit, be
aware of sharp sheet metal parts and screws.
Although special care is taken to reduce sharp edges
to a minimum, be extremely careful when handling
parts or reaching into the unit.
The PH4E heat pump is fully self−contained and designed for
outdoor installation. (See FIGURE 1) Standard units are shipped
in a horizontal−discharge configuration for installation on a
ground level slab. Standard units can be converted to downflow
(vertical) discharge configurations for rooftop applications.
RECEIVING AND INSTALLATION
Step 1 — Check Equipment
Identify Unit
The unit model number and serial number are stamped on the
unit identification plate. Check this information against shipping
papers.
Inspect Shipment
Inspect for shipping damage before removing packaging
material. If unit appears to be damaged or is torn loose from its
anchorage, have it examined by transportation inspectors before
removal. Forward claim papers directly to transportation
company. Manufacturer is not responsible for any damage
incurred in transit. Check all items against shipping list.
Immediately notify the nearest equipment distributor if any item is
missing. To prevent loss or damage, leave all parts in original
packages until installation.
If the unit is to be mounted on a curb in a downflow application,
review Step 5 to determine which method is to be used to
remove the downflow panels before rigging and lifting into place.
The panel removal process may require the unit to be on the
ground.
.
Step 2 — Provide Unit Support
Roof Curb
Install accessory roof curb in accordance with instructions
shipped with curb (See FIGURE 5). Install insulation, cant strips,
roofing, and flashing. Ductwork must be attached to curb.
IMPORTANT: The gasketing of the unit to the roof curb is critical
for a watertight seal. Install gasketing material supplied with the
roof curb. Improperly applied gasketing also can result in air
leaks and poor unit performance.
Curb should be level to within 1/4 in. (6 mm) (See FIGURE 9).
This is necessary for unit drain to function properly. Refer to
accessory roof curb installation instructions for additional
information as required.
Accessory kits are available to aid in installing a new metal base
rail unit on a old roof curb.
Accessory kit number CPADCURB001A00, (small chassis) and
accessory kit number CPADDURB002A00, (large chassis)
includes roof curb adapter and gaskets for the perimeter seal
and duct openings. No additional modifications to curb are
required when using this kit.
CAUTION
INTRODUCTION
513 01 3402 02
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