P/N 96P557A06 07/02
Dual Capacity, 3 to 6 Tons, R410A
Installation and Maintenance Manual
WARNING:
Before performing service or maintenance operations on a system, turn off main
power switches to the indoor unit. If applicable, turn off the accessory heater power switch.
Electrical shock could cause personal injury.
Installing and servicing heating and air conditioning equipment can be hazardous due to system
pressure and electrical components. Only trained and qualified service personnel should install, repair
or service heating and air conditioning equipment.
Untrained personnel can perform the basic maintenance functions of cleaning coils and cleaning
and replacing filters. All other operations should be performed by trained service personnel. When
working on heating and air conditioning equipment, observe precautions in the literature, tags and labels
attached to the unit and other safety precautions that may apply.
Follow all safety codes. Wear safety glasses and work gloves. Use a quenching cloth for brazing
operations and have a fire extinguisher available.
Move units in the normal “up” orientation. Horizontal units may be moved and stored per the
information on the carton. Do not stack more than three units in total height. Vertical units may be stored
one upon another to a maximum height of two units. Do not attempt to move units while stacked. When
the equipment is received, all items should be carefully checked against the bill of lading to be sure all
crates and cartons have been received. Examine units for shipping damage, removing the units from the
cartons if necessary. Units in question should also be internally inspected. If any damage is noted, the
carrier should make the proper notation on the delivery receipt, acknowledging the damage.
Moving and
Storage
Model
Nomenclature
Table of
Contents
Model Nomenclature 1
Safety Considerations 1
Moving and Storage 1
Physical Data 2
General Installation Information 2-5
Closed Loop Ground Source Systems 6-7
Open Loop Groundwater Systems 8-9
Desuperheater Connection 10-11
Initial Desuperheater Start Up 12
Electrical Connections 12-13
Wiring Schematic 14-15
Unit Electrical Data 16
Electronic Thermostat 16
Microprocessor Control Operation 16-19
Blower Speed 19
ECM Fan Performance Data 19
Unit Start-Up 20-21
Preventive Maintenance 22
Troubleshooting 22-23
Unit Operating Pressures 23
Replacement Procedures 23
Safety
Considerations
Model Type
Premier - R410A
Unit Capacity
MBTUH
Discharge Air Configuration
T = Top Discharge Vertical
B = Bottom Discharge Vertical
E = End Discharge Horizontal
S = Side Discharge Horizontal
Return Air Configuration
L = Left
R = Right
Voltage
1 = 208-230/60/1
Hot Water Options
0 = None
1 = Hot Water Generation With
Factory Installed Pump
ET048 L 1 0 1 C B D SSA
Vintage
A = Current
Non-Standard Option Details
Non-Standard Options
Filter Options
D =1” Pleated Disposable
Sound Kit
B = Blanket (standard)
Coax Options
C =Copper
N =Cupronickel
Blower Options
1 = ECM Blower
2 = Oversized ECM Blower Option
(048 Only)
E Series
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