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1
50VL---A
Performance
t
14 SEER Single---Packaged Air Conditioner
System with Puron
®
(R---410A) Refrigerant
Single and Three Phase
2---5 Nominal Tons (Sizes 24---60)
Installation Instructions
NOTE
:
Read the entire instruction manual before starting the
installation.
NOTE
:
Installer: Make sure the Owner’s Manual and Service
Instructions are left with the unit after installation.
TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS
1--2
. . . . . . . . . . . . . . . . . . . . . . .
INTRODUCTION
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RECEIVING AND INSTALLATION
2--10
. . . . . . . . . . . . . . . . .
Check Equipment
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Identify Unit
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspect Shipment
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provide Unit Support
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Roof Curb
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Slab Mount
2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Provide Clearances
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Field Fabricate Ductwork
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rig and Place Unit
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rigging/Lifting of Unit
7
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect Condensate Drain
7
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Install Duct Connections
8
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Configuring Units for Downflow (Vertical) Discharge
8
. . . .
Install Electrical Connections
9
. . . . . . . . . . . . . . . . . . . . . . . . .
High--Voltage Connections
9
. . . . . . . . . . . . . . . . . . . . . . . . .
Special Procedures for 208v Operation
10
. . . . . . . . . . . . . . .
Control Voltage Connections
10
. . . . . . . . . . . . . . . . . . . . . . .
Standard Connection
10
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transformer Protection
10
. . . . . . . . . . . . . . . . . . . . . . . . . . .
PRE--START--UP
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START--UP
12--14
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Check for Refrigerant Leaks
12
. . . . . . . . . . . . . . . . . . . . . . . . .
Start--Up Adjustments
12
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking Cooling Control Operation
12
. . . . . . . . . . . . . . . .
Checking and Adjusting Refrigerant Charge
12
. . . . . . . . . . .
Indoor Airflow and Airflow Adjustments
13
. . . . . . . . . . . . .
Continuous Fan Operation
14
. . . . . . . . . . . . . . . . . . . . . . . .
Cooling Sequence of Operation
14
. . . . . . . . . . . . . . . . . . . . .
MAINTENANCE
23--
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Air Filter
23
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indoor Blower and Motor
23
. . . . . . . . . . . . . . . . . . . . . . . . .
Outdoor Coil, Indoor Coil, and Condensate Drain Pan
24
. . .
Outdoor Fan
24
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Controls and Wiring
24
. . . . . . . . . . . . . . . . . . . . .
Refrigerant Circuit
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Evaporator Airflow
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Puron Items
25
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING
26
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
START--UP CHECKLIST
26
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
VERTICAL ECONOMIZER
28--48
. . . . . . . . . . . . . . . . . . . . . . .
General
28
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Accessories
28
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
A09033
Fig. 1 -- Unit 50VL--A
Installation
28--34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Small Chassis
28--29
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Large Chassis
32--34
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CONFIGURATION
35--44
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OPERATION
45
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING
46
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SAFETY CONSIDERATIONS
Improper installation adjustment, alteration, service, maintenance,
or use can cause explosion, fire, electrical shock, or other
conditions which may cause death, personal injury, or property
damage. Consult a qualified installer, service agency, or your
distributor or branch for information or assistance. The qualified
installer or agency must use factory--authorized kits or accessories
when modifying this product Refer to the individual instructions
packaged with the kits or accessories when installing.
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.
Summary of Contents for Performance 50VL-A
Page 3: ...3 A09462 Fig 2 50VL A24 36 Unit Dimensions 50VL A ...
Page 4: ...4 A09463 Fig 3 50VL A42 60 Unit Dimensions 50VL A ...
Page 18: ...18 A10202 Fig 13 Connection Wiring Diagram 208 230 3 60 50VL A ...
Page 19: ...19 A10202 Fig 13 Cont Ladder Wiring Diagram 208 230 3 60 50VL A ...
Page 22: ...22 A09089 Fig 15 Cooling Charging Chart 50VL A ...
Page 40: ...40 A10201 Fig 41 Connection Wiring Diagram 230 3 50VL A ...
Page 41: ...41 A10201 Fig 41 Cont Ladder Wiring Diagram 230 3 50VL A ...
Page 42: ...42 A10203 Fig 42 Connection Wiring Diagram 460 3 50VL A ...
Page 43: ...43 A10203 Fig 42 Cont Ladder Wiring Diagram 460 3 50VL A ...