Warning, Caution – Reznor P6SD (3ph) Unit Installation Manual User Manual
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WARNING:
I m p r o p e r i n s t a l l a t i o n , s e r v i c e , 
adjustment, or maintenance may 
cause explosion, fi re, electrical shock 
or other hazardous conditions which 
may result in personal injury or 
property damage. Unless otherwise 
noted in these instructions, only 
factory authorized kits or accessories 
may be used with this product. 
Noncompliance may void the unit’s 
warranty.
Labels, Tags — When working with this 
equipment, follow all precautions in the literature, 
on tags, and on labels provided with the unit 
and/or approved fi eld installed kits. The type 
of hazard and severity are described on each 
label or tag.
Pressures Within The System — This 
equipment contains R410-a refrigerant under 
high pressure. Installation or servicing should 
only be performed by qualifi ed trained personnel 
thoroughly familiar with this type equipment.
INSTALLATION REQUIREMENTS
Equipment Check — Before beginning the 
installation, verify that the unit model is correct for 
the job. The unit model number is printed on the 
data label. All units have been securely packaged 
at the point of shipment. After unpacking the unit, 
carefully inspect it for apparent and concealed 
damage. Claims for damage should be fi led with 
the carrier by the consignee.
Requirements and Codes — The installer 
must comply with all local codes and regulations 
which govern this type equipment. Local 
codes and regulations take precedence over 
any recommendations contained in these 
instructions. All electrical wiring must be made 
in accordance with local codes and regulations 
and with the National Electric Code (ANSI/NFPA 
70) or in Canada the Canadian Electric Code 
Part 1 CSA C.22.1. Air Ducts must be installed 
in accordance with the standards of the National 
Fire Protection Association “Standards for 
Installation of Air Conditioning and Ventilation 
Systems” (NFPA 90A), “Standard for Installation 
of Residence Type Warm Air Heating and Air 
3. For free air fl ow, make sure your return
register is not covered and that the fi lter is 
clean.
4. Check the condenser coil and make sure it is
clean and not clogged with grass or leaves.
If your air conditioner still isn’t working, call your 
nearest contractor.
SPECIFICATIONS
Packaged Air Conditioners are designed for 
outdoor rooftop or ground level slab installations. 
The units are shipped ready for horizontal 
duct connections and are easily converted for 
downfl ow applications.
All models are shipped from the factory with 
the following:
1. Zero clearance to combustibles.
2. Multi-speed direct-drive or fi xed torque
blower.
 3. High Pressure Switch.
 4. Blower Speed Relay.
 5. Horizontal or Downfl ow duct connections.
The unit dimensions are shown in Figure 2.
Optional field-installed electric heater kits 
are available in 5 kw through 20 kw heating 
capacities. A separate installation instruction 
document for the electric heaters and their 
application is shipped with the heater kits. A 
single stage cooling 24VAC thermostat should 
be used with these units. If electric heat will be 
installed, a single-stage cooling, single stage 
heating thermostat will be required.
CAUTION:
This unit uses refrigerant R-410A. DO 
NOT under any circumstances use any 
other refrigerant besides R-410A in 
this unit. Use of another refrigerant will 
damage this unit.
SAFETY CONSIDERATIONS
It is the responsibility of the installer to ensure 
that the installation is made in accordance with 
all applicable local and national codes.
